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-rw-r--r--vendor/paragonie/random_compat/composer.json68
-rw-r--r--vendor/paragonie/sodium_compat/LICENSE32
-rw-r--r--vendor/paragonie/sodium_compat/README.md721
-rw-r--r--vendor/paragonie/sodium_compat/autoload.php147
-rw-r--r--vendor/paragonie/sodium_compat/composer.json132
-rw-r--r--vendor/paragonie/sodium_compat/lib/php72compat.php2804
-rw-r--r--vendor/paragonie/sodium_compat/lib/php72compat_const.php184
-rw-r--r--vendor/paragonie/sodium_compat/lib/ristretto255.php476
-rw-r--r--vendor/paragonie/sodium_compat/lib/sodium_compat.php1658
-rw-r--r--vendor/paragonie/sodium_compat/lib/stream-xchacha20.php102
-rw-r--r--vendor/paragonie/sodium_compat/src/Compat.php7949
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php1587
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php4
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/Curve25519.php7942
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php4
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php3098
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/Ed25519.php1105
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php50
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/Ristretto255.php1414
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/SipHash.php612
-rw-r--r--vendor/paragonie/sodium_compat/src/Core/Util.php1889
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php1438
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php4
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/Curve25519.php57
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php7
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/Ed25519.php967
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/Int32.php9
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/Int64.php6
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php52
-rw-r--r--vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php23
-rw-r--r--vendor/paragonie/sodium_compat/src/File.php3107
31 files changed, 18781 insertions, 18867 deletions
diff --git a/vendor/paragonie/random_compat/composer.json b/vendor/paragonie/random_compat/composer.json
index 1725089..f2b9c4e 100644
--- a/vendor/paragonie/random_compat/composer.json
+++ b/vendor/paragonie/random_compat/composer.json
@@ -1,34 +1,34 @@
-{
- "name": "paragonie/random_compat",
- "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
- "keywords": [
- "csprng",
- "random",
- "polyfill",
- "pseudorandom"
- ],
- "license": "MIT",
- "type": "library",
- "authors": [
- {
- "name": "Paragon Initiative Enterprises",
- "email": "security@paragonie.com",
- "homepage": "https://paragonie.com"
- }
- ],
- "support": {
- "issues": "https://github.com/paragonie/random_compat/issues",
- "email": "info@paragonie.com",
- "source": "https://github.com/paragonie/random_compat"
- },
- "require": {
- "php": ">= 7"
- },
- "require-dev": {
- "vimeo/psalm": "^1",
- "phpunit/phpunit": "4.*|5.*"
- },
- "suggest": {
- "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
- }
-}
+{
+ "name": "paragonie/random_compat",
+ "description": "PHP 5.x polyfill for random_bytes() and random_int() from PHP 7",
+ "keywords": [
+ "csprng",
+ "random",
+ "polyfill",
+ "pseudorandom"
+ ],
+ "license": "MIT",
+ "type": "library",
+ "authors": [
+ {
+ "name": "Paragon Initiative Enterprises",
+ "email": "security@paragonie.com",
+ "homepage": "https://paragonie.com"
+ }
+ ],
+ "support": {
+ "issues": "https://github.com/paragonie/random_compat/issues",
+ "email": "info@paragonie.com",
+ "source": "https://github.com/paragonie/random_compat"
+ },
+ "require": {
+ "php": ">= 7"
+ },
+ "require-dev": {
+ "vimeo/psalm": "^1",
+ "phpunit/phpunit": "4.*|5.*"
+ },
+ "suggest": {
+ "ext-libsodium": "Provides a modern crypto API that can be used to generate random bytes."
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/LICENSE b/vendor/paragonie/sodium_compat/LICENSE
index 184e442..af760a7 100644
--- a/vendor/paragonie/sodium_compat/LICENSE
+++ b/vendor/paragonie/sodium_compat/LICENSE
@@ -1,16 +1,16 @@
-ISC License
-
-Copyright (c) 2016-2021, Paragon Initiative Enterprises <security at paragonie dot com>
-Copyright (c) 2013-2019, Frank Denis <j at pureftpd dot org>
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ISC License
+
+Copyright (c) 2016-2023, Paragon Initiative Enterprises <security at paragonie dot com>
+Copyright (c) 2013-2019, Frank Denis <j at pureftpd dot org>
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
diff --git a/vendor/paragonie/sodium_compat/README.md b/vendor/paragonie/sodium_compat/README.md
index a50508c..88e7629 100644
--- a/vendor/paragonie/sodium_compat/README.md
+++ b/vendor/paragonie/sodium_compat/README.md
@@ -1,347 +1,374 @@
-# Sodium Compat
-
-[![Build Status](https://github.com/paragonie/sodium_compat/actions/workflows/ci.yml/badge.svg)](https://github.com/paragonie/sodium_compat/actions)
-[![Windows Build Status](https://ci.appveyor.com/api/projects/status/itcx1vgmfqiawgbe?svg=true)](https://ci.appveyor.com/project/paragonie-scott/sodium-compat)
-[![Latest Stable Version](https://poser.pugx.org/paragonie/sodium_compat/v/stable)](https://packagist.org/packages/paragonie/sodium_compat)
-[![Latest Unstable Version](https://poser.pugx.org/paragonie/sodium_compat/v/unstable)](https://packagist.org/packages/paragonie/sodium_compat)
-[![License](https://poser.pugx.org/paragonie/sodium_compat/license)](https://packagist.org/packages/paragonie/sodium_compat)
-[![Downloads](https://img.shields.io/packagist/dt/paragonie/sodium_compat.svg)](https://packagist.org/packages/paragonie/sodium_compat)
-
-Sodium Compat is a pure PHP polyfill for the Sodium cryptography library
-(libsodium), a core extension in PHP 7.2.0+ and otherwise [available in PECL](https://pecl.php.net/package/libsodium).
-
-This library tentativeley supports PHP 5.2.4 - 8.x (latest), but officially
-only supports [non-EOL'd versions of PHP](https://secure.php.net/supported-versions.php).
-
-If you have the PHP extension installed, Sodium Compat will opportunistically
-and transparently use the PHP extension instead of our implementation.
-
-## IMPORTANT!
-
-This cryptography library has not been formally audited by an independent third
-party that specializes in cryptography or cryptanalysis.
-
-If you require such an audit before you can use sodium_compat in your projects
-and have the funds for such an audit, please open an issue or contact
-`security at paragonie dot com` so we can help get the ball rolling.
-
-However, sodium_compat has been adopted by high profile open source projects,
-such as [Joomla!](https://github.com/joomla/joomla-cms/blob/459d74686d2a638ec51149d7c44ddab8075852be/composer.json#L40)
-and [Magento](https://github.com/magento/magento2/blob/8fd89cfdf52c561ac0ca7bc20fd38ef688e201b0/composer.json#L44).
-Furthermore, sodium_compat was developed by Paragon Initiative Enterprises, a
-company that *specializes* in secure PHP development and PHP cryptography, and
-has been informally reviewed by many other security experts who also specialize
-in PHP.
-
-If you'd like to learn more about the defensive security measures we've taken
-to prevent sodium_compat from being a source of vulnerability in your systems,
-please read [*Cryptographically Secure PHP Development*](https://paragonie.com/blog/2017/02/cryptographically-secure-php-development).
-
-# Installing Sodium Compat
-
-If you're using Composer:
-
-```bash
-composer require paragonie/sodium_compat
-```
-
-### Install From Source
-
-If you're not using Composer, download a [release tarball](https://github.com/paragonie/sodium_compat/releases)
-(which should be signed with [our GnuPG public key](https://paragonie.com/static/gpg-public-key.txt)), extract
-its contents, then include our `autoload.php` script in your project.
-
-```php
-<?php
-require_once "/path/to/sodium_compat/autoload.php";
-```
-
-### PHP Archives (Phar) Releases
-
-Since version 1.3.0, [sodium_compat releases](https://github.com/paragonie/sodium_compat/releases) include a
-PHP Archive (.phar file) and associated GPG signature. First, download both files and verify them with our
-GPG public key, like so:
-
-```bash
-# Getting our public key from the keyserver:
-gpg --fingerprint 7F52D5C61D1255C731362E826B97A1C2826404DA
-if [ $? -ne 0 ]; then
- echo -e "\033[33mDownloading PGP Public Key...\033[0m"
- gpg --keyserver pgp.mit.edu --recv-keys 7F52D5C61D1255C731362E826B97A1C2826404DA
- # Security <security@paragonie.com>
- gpg --fingerprint 7F52D5C61D1255C731362E826B97A1C2826404DA
- if [ $? -ne 0 ]; then
- echo -e "\033[31mCould not download PGP public key for verification\033[0m"
- exit 1
- fi
-fi
-
-# Verifying the PHP Archive
-gpg --verify sodium-compat.phar.sig sodium-compat.phar
-```
-
-Now, simply include this .phar file in your application.
-
-```php
-<?php
-require_once "/path/to/sodium-compat.phar";
-```
-
-# Support
-
-[Commercial support for libsodium](https://download.libsodium.org/doc/commercial_support/) is available
-from multiple vendors. If you need help using sodium_compat in one of your projects, [contact Paragon Initiative Enterprises](https://paragonie.com/contact).
-
-Non-commercial report will be facilitated through [Github issues](https://github.com/paragonie/sodium_compat/issues).
-We offer no guarantees of our availability to resolve questions about integrating sodium_compat into third-party
-software for free, but will strive to fix any bugs (security-related or otherwise) in our library.
-
-## Support Contracts
-
-If your company uses this library in their products or services, you may be
-interested in [purchasing a support contract from Paragon Initiative Enterprises](https://paragonie.com/enterprise).
-
-# Using Sodium Compat
-
-## True Polyfill
-
-If you're using PHP 5.3.0 or newer and do not have the PECL extension installed,
-you can just use the [standard ext/sodium API features as-is](https://paragonie.com/book/pecl-libsodium)
-and the polyfill will work its magic.
-
-```php
-<?php
-require_once "/path/to/sodium_compat/autoload.php";
-
-$alice_kp = \Sodium\crypto_sign_keypair();
-$alice_sk = \Sodium\crypto_sign_secretkey($alice_kp);
-$alice_pk = \Sodium\crypto_sign_publickey($alice_kp);
-
-$message = 'This is a test message.';
-$signature = \Sodium\crypto_sign_detached($message, $alice_sk);
-if (\Sodium\crypto_sign_verify_detached($signature, $message, $alice_pk)) {
- echo 'OK', PHP_EOL;
-} else {
- throw new Exception('Invalid signature');
-}
-```
-
-The polyfill does not expose this API on PHP < 5.3, or if you have the PHP
-extension installed already.
-
-## General-Use Polyfill
-
-If your users are on PHP < 5.3, or you want to write code that will work
-whether or not the PECL extension is available, you'll want to use the
-**`ParagonIE_Sodium_Compat`** class for most of your libsodium needs.
-
-The above example, written for general use:
-
-```php
-<?php
-require_once "/path/to/sodium_compat/autoload.php";
-
-$alice_kp = ParagonIE_Sodium_Compat::crypto_sign_keypair();
-$alice_sk = ParagonIE_Sodium_Compat::crypto_sign_secretkey($alice_kp);
-$alice_pk = ParagonIE_Sodium_Compat::crypto_sign_publickey($alice_kp);
-
-$message = 'This is a test message.';
-$signature = ParagonIE_Sodium_Compat::crypto_sign_detached($message, $alice_sk);
-if (ParagonIE_Sodium_Compat::crypto_sign_verify_detached($signature, $message, $alice_pk)) {
- echo 'OK', PHP_EOL;
-} else {
- throw new Exception('Invalid signature');
-}
-```
-
-Generally: If you replace `\Sodium\ ` with `ParagonIE_Sodium_Compat::`, any
-code already written for the libsodium PHP extension should work with our
-polyfill without additional code changes.
-
-Since this doesn't require a namespace, this API *is* exposed on PHP 5.2.
-
-Since version 0.7.0, we have our own namespaced API (`ParagonIE\Sodium\*`) to allow brevity
-in software that uses PHP 5.3+. This is useful if you want to use our file cryptography
-features without writing `ParagonIE_Sodium_File` every time. This is not exposed on PHP < 5.3,
-so if your project supports PHP < 5.3, use the underscore method instead.
-
-To learn how to use Libsodium, read [*Using Libsodium in PHP Projects*](https://paragonie.com/book/pecl-libsodium).
-
-## PHP 7.2 Polyfill
-
-As per the [second vote on the libsodium RFC](https://wiki.php.net/rfc/libsodium#proposed_voting_choices),
-PHP 7.2 uses `sodium_*` instead of `\Sodium\*`.
-
-```php
-<?php
-require_once "/path/to/sodium_compat/autoload.php";
-
-$alice_kp = sodium_crypto_sign_keypair();
-$alice_sk = sodium_crypto_sign_secretkey($alice_kp);
-$alice_pk = sodium_crypto_sign_publickey($alice_kp);
-
-$message = 'This is a test message.';
-$signature = sodium_crypto_sign_detached($message, $alice_sk);
-if (sodium_crypto_sign_verify_detached($signature, $message, $alice_pk)) {
- echo 'OK', PHP_EOL;
-} else {
- throw new Exception('Invalid signature');
-}
-```
-
-## Help, Sodium_Compat is Slow! How can I make it fast?
-
-There are three ways to make it fast:
-
-1. Use PHP 7.2.
-2. [Install the libsodium PHP extension from PECL](https://paragonie.com/book/pecl-libsodium/read/00-intro.md#installing-libsodium).
-3. Only if the previous two options are not available for you:
- 1. Verify that [the processor you're using actually implements constant-time multiplication](https://bearssl.org/ctmul.html).
- Sodium_compat does, but it must trade some speed in order to attain cross-platform security.
- 2. Only if you are 100% certain that your processor is safe, you can set `ParagonIE_Sodium_Compat::$fastMult = true;`
- without harming the security of your cryptography keys. If your processor *isn't* safe, then decide whether you
- want speed or security because you can't have both.
-
-### How can I tell if sodium_compat will be slow, at runtime?
-
-Since version 1.8, you can use the `polyfill_is_fast()` static method to
-determine if sodium_compat will be slow at runtime.
-
-```php
-<?php
-if (ParagonIE_Sodium_Compat::polyfill_is_fast()) {
- // Use libsodium now
- $process->execute();
-} else {
- // Defer to a cron job or other sort of asynchronous process
- $process->enqueue();
-}
-```
-
-### Help, my PHP only has 32-Bit Integers! It's super slow!
-
-Some features of sodium_compat are ***incredibly slow* with PHP 5 on Windows**
-(in particular: public-key cryptography (encryption and signatures) is
-affected), and there is nothing we can do about that, due to platform
-restrictions on integers.
-
-For acceptable performance, we highly recommend Windows users to version 1.0.6
-of the libsodium extension from PECL or, alternatively, simply upgrade to PHP 7
-and the slowdown will be greatly reduced.
-
-This is also true of non-Windows 32-bit operating systems, or if somehow PHP
-was compiled where `PHP_INT_SIZE` equals `4` instead of `8` (i.e. Linux on i386).
-
-## Documentation
-
-First, you'll want to read the [Libsodium Quick Reference](https://paragonie.com/blog/2017/06/libsodium-quick-reference-quick-comparison-similar-functions-and-which-one-use).
-It aims to answer, "Which function should I use for [common problem]?".
-
-If you don't find the answers in the Quick Reference page, check out
-[*Using Libsodium in PHP Projects*](https://paragonie.com/book/pecl-libsodium).
-
-Finally, the [official libsodium documentation](https://download.libsodium.org/doc/)
-(which was written for the C library, not the PHP library) also contains a lot of
-insightful technical information you may find helpful.
-
-## API Coverage
-
-**Recommended reading:** [Libsodium Quick Reference](https://paragonie.com/blog/2017/06/libsodium-quick-reference-quick-comparison-similar-functions-and-which-one-use)
-
-* Mainline NaCl Features
- * `crypto_auth()`
- * `crypto_auth_verify()`
- * `crypto_box()`
- * `crypto_box_open()`
- * `crypto_scalarmult()`
- * `crypto_secretbox()`
- * `crypto_secretbox_open()`
- * `crypto_sign()`
- * `crypto_sign_open()`
-* PECL Libsodium Features
- * `crypto_aead_aes256gcm_encrypt()`
- * `crypto_aead_aes256gcm_decrypt()`
- * `crypto_aead_chacha20poly1305_encrypt()`
- * `crypto_aead_chacha20poly1305_decrypt()`
- * `crypto_aead_chacha20poly1305_ietf_encrypt()`
- * `crypto_aead_chacha20poly1305_ietf_decrypt()`
- * `crypto_aead_xchacha20poly1305_ietf_encrypt()`
- * `crypto_aead_xchacha20poly1305_ietf_decrypt()`
- * `crypto_box_xchacha20poly1305()`
- * `crypto_box_xchacha20poly1305_open()`
- * `crypto_box_seal()`
- * `crypto_box_seal_open()`
- * `crypto_generichash()`
- * `crypto_generichash_init()`
- * `crypto_generichash_update()`
- * `crypto_generichash_final()`
- * `crypto_kx()`
- * `crypto_secretbox_xchacha20poly1305()`
- * `crypto_secretbox_xchacha20poly1305_open()`
- * `crypto_shorthash()`
- * `crypto_sign_detached()`
- * `crypto_sign_ed25519_pk_to_curve25519()`
- * `crypto_sign_ed25519_sk_to_curve25519()`
- * `crypto_sign_verify_detached()`
- * For advanced users only:
- * `crypto_stream()`
- * `crypto_stream_xor()`
- * Other utilities (e.g. `crypto_*_keypair()`)
- * `add()`
- * `base642bin()`
- * `bin2base64()`
- * `bin2hex()`
- * `hex2bin()`
- * `crypto_kdf_derive_from_key()`
- * `crypto_kx_client_session_keys()`
- * `crypto_kx_server_session_keys()`
- * `crypto_secretstream_xchacha20poly1305_init_push()`
- * `crypto_secretstream_xchacha20poly1305_push()`
- * `crypto_secretstream_xchacha20poly1305_init_pull()`
- * `crypto_secretstream_xchacha20poly1305_pull()`
- * `crypto_secretstream_xchacha20poly1305_rekey()`
- * `pad()`
- * `unpad()`
-
-### Cryptography Primitives Provided
-
-* **X25519** - Elliptic Curve Diffie Hellman over Curve25519
-* **Ed25519** - Edwards curve Digital Signature Algorithm over Curve25519
-* **Xsalsa20** - Extended-nonce Salsa20 stream cipher
-* **ChaCha20** - Stream cipher
-* **Xchacha20** - Extended-nonce ChaCha20 stream cipher
-* **Poly1305** - Polynomial Evaluation Message Authentication Code modulo 2^130 - 5
-* **BLAKE2b** - Cryptographic Hash Function
-* **SipHash-2-4** - Fast hash, but not collision-resistant; ideal for hash tables.
-
-### Features Excluded from this Polyfill
-
-* `\Sodium\memzero()` - Although we expose this API endpoint, we can't reliably
- zero buffers from PHP.
-
- If you have the PHP extension installed, sodium_compat
- will use the native implementation to zero out the string provided. Otherwise
- it will throw a `SodiumException`.
-* `\Sodium\crypto_pwhash()` - It's not feasible to polyfill scrypt or Argon2
- into PHP and get reasonable performance. Users would feel motivated to select
- parameters that downgrade security to avoid denial of service (DoS) attacks.
-
- The only winning move is not to play.
-
- If ext/sodium or ext/libsodium is installed, these API methods will fallthrough
- to the extension. Otherwise, our polyfill library will throw a `SodiumException`.
-
- To detect support for Argon2i at runtime, use
- `ParagonIE_Sodium_Compat::crypto_pwhash_is_available()`, which returns a
- boolean value (`TRUE` or `FALSE`).
-
-### PHPCompatibility Ruleset
-
-For sodium_compat users and that utilize [`PHPCompatibility`](https://github.com/PHPCompatibility/PHPCompatibility)
-in their CI process, there is now a custom ruleset available which can be used
-to prevent false positives being thrown by `PHPCompatibility` for the native
-PHP functionality being polyfilled by this repo.
-
-You can find the repo for the `PHPCompatibilityParagonieSodiumCompat` ruleset
-here [on Github](https://github.com/PHPCompatibility/PHPCompatibilityParagonie)
-and [on Packagist](https://packagist.org/packages/phpcompatibility/phpcompatibility-paragonie).
+# Sodium Compat
+
+[![Build Status](https://github.com/paragonie/sodium_compat/actions/workflows/ci.yml/badge.svg)](https://github.com/paragonie/sodium_compat/actions)
+[![Psalm Status](https://github.com/paragonie/sodium_compat/actions/workflows/psalm.yml/badge.svg)](https://github.com/paragonie/sodium_compat/actions)
+[![Windows Build Status](https://ci.appveyor.com/api/projects/status/itcx1vgmfqiawgbe?svg=true)](https://ci.appveyor.com/project/paragonie-scott/sodium-compat)
+[![Latest Stable Version](https://poser.pugx.org/paragonie/sodium_compat/v/stable)](https://packagist.org/packages/paragonie/sodium_compat)
+[![Latest Unstable Version](https://poser.pugx.org/paragonie/sodium_compat/v/unstable)](https://packagist.org/packages/paragonie/sodium_compat)
+[![License](https://poser.pugx.org/paragonie/sodium_compat/license)](https://packagist.org/packages/paragonie/sodium_compat)
+[![Downloads](https://img.shields.io/packagist/dt/paragonie/sodium_compat.svg)](https://packagist.org/packages/paragonie/sodium_compat)
+
+Sodium Compat is a pure PHP polyfill for the Sodium cryptography library
+(libsodium), a core extension in PHP 7.2.0+ and otherwise [available in PECL](https://pecl.php.net/package/libsodium).
+
+This library tentatively supports PHP 5.2.4 - 8.x (latest), but officially
+only supports [non-EOL'd versions of PHP](https://secure.php.net/supported-versions.php).
+
+If you have the PHP extension installed, Sodium Compat will opportunistically
+and transparently use the PHP extension instead of our implementation.
+
+## IMPORTANT!
+
+This cryptography library has not been formally audited by an independent third
+party that specializes in cryptography or cryptanalysis.
+
+If you require such an audit before you can use sodium_compat in your projects
+and have the funds for such an audit, please open an issue or contact
+`security at paragonie dot com` so we can help get the ball rolling.
+
+However, sodium_compat has been adopted by high profile open source projects,
+such as [Joomla!](https://github.com/joomla/joomla-cms/blob/459d74686d2a638ec51149d7c44ddab8075852be/composer.json#L40)
+and [Magento](https://github.com/magento/magento2/blob/8fd89cfdf52c561ac0ca7bc20fd38ef688e201b0/composer.json#L44).
+Furthermore, sodium_compat was developed by Paragon Initiative Enterprises, a
+company that *specializes* in secure PHP development and PHP cryptography, and
+has been informally reviewed by many other security experts who also specialize
+in PHP.
+
+If you'd like to learn more about the defensive security measures we've taken
+to prevent sodium_compat from being a source of vulnerability in your systems,
+please read [*Cryptographically Secure PHP Development*](https://paragonie.com/blog/2017/02/cryptographically-secure-php-development).
+
+# Installing Sodium Compat
+
+If you're using Composer:
+
+```bash
+composer require paragonie/sodium_compat
+```
+
+### Install From Source
+
+If you're not using Composer, download a [release tarball](https://github.com/paragonie/sodium_compat/releases)
+(which should be signed with [our GnuPG public key](https://paragonie.com/static/gpg-public-key.txt)), extract
+its contents, then include our `autoload.php` script in your project.
+
+```php
+<?php
+require_once "/path/to/sodium_compat/autoload.php";
+```
+
+### PHP Archives (Phar) Releases
+
+Since version 1.3.0, [sodium_compat releases](https://github.com/paragonie/sodium_compat/releases) include a
+PHP Archive (.phar file) and associated GPG signature. First, download both files and verify them with our
+GPG public key, like so:
+
+```bash
+# Getting our public key from the keyserver:
+gpg --fingerprint 7F52D5C61D1255C731362E826B97A1C2826404DA
+if [ $? -ne 0 ]; then
+ echo -e "\033[33mDownloading PGP Public Key...\033[0m"
+ gpg --keyserver pgp.mit.edu --recv-keys 7F52D5C61D1255C731362E826B97A1C2826404DA
+ # Security <security@paragonie.com>
+ gpg --fingerprint 7F52D5C61D1255C731362E826B97A1C2826404DA
+ if [ $? -ne 0 ]; then
+ echo -e "\033[31mCould not download PGP public key for verification\033[0m"
+ exit 1
+ fi
+fi
+
+# Verifying the PHP Archive
+gpg --verify sodium-compat.phar.sig sodium-compat.phar
+```
+
+Now, simply include this .phar file in your application.
+
+```php
+<?php
+require_once "/path/to/sodium-compat.phar";
+```
+
+# Support
+
+[Commercial support for libsodium](https://download.libsodium.org/doc/commercial_support/) is available
+from multiple vendors. If you need help using sodium_compat in one of your projects, [contact Paragon Initiative Enterprises](https://paragonie.com/contact).
+
+Non-commercial report will be facilitated through [Github issues](https://github.com/paragonie/sodium_compat/issues).
+We offer no guarantees of our availability to resolve questions about integrating sodium_compat into third-party
+software for free, but will strive to fix any bugs (security-related or otherwise) in our library.
+
+## Support Contracts
+
+If your company uses this library in their products or services, you may be
+interested in [purchasing a support contract from Paragon Initiative Enterprises](https://paragonie.com/enterprise).
+
+# Using Sodium Compat
+
+## True Polyfill
+
+As per the [second vote on the libsodium RFC](https://wiki.php.net/rfc/libsodium#proposed_voting_choices),
+PHP 7.2 uses `sodium_*` instead of `\Sodium\*`.
+
+```php
+<?php
+require_once "/path/to/sodium_compat/autoload.php";
+
+$alice_kp = sodium_crypto_sign_keypair();
+$alice_sk = sodium_crypto_sign_secretkey($alice_kp);
+$alice_pk = sodium_crypto_sign_publickey($alice_kp);
+
+$message = 'This is a test message.';
+$signature = sodium_crypto_sign_detached($message, $alice_sk);
+if (sodium_crypto_sign_verify_detached($signature, $message, $alice_pk)) {
+ echo 'OK', PHP_EOL;
+} else {
+ throw new Exception('Invalid signature');
+}
+```
+
+## Polyfill For the Old PECL Extension API
+
+If you're using PHP 5.3.0 or newer and do not have the PECL extension installed,
+you can just use the [standard ext/sodium API features as-is](https://paragonie.com/book/pecl-libsodium)
+and the polyfill will work its magic.
+
+```php
+<?php
+require_once "/path/to/sodium_compat/autoload.php";
+
+$alice_kp = \Sodium\crypto_sign_keypair();
+$alice_sk = \Sodium\crypto_sign_secretkey($alice_kp);
+$alice_pk = \Sodium\crypto_sign_publickey($alice_kp);
+
+$message = 'This is a test message.';
+$signature = \Sodium\crypto_sign_detached($message, $alice_sk);
+if (\Sodium\crypto_sign_verify_detached($signature, $message, $alice_pk)) {
+ echo 'OK', PHP_EOL;
+} else {
+ throw new Exception('Invalid signature');
+}
+```
+
+The polyfill does not expose this API on PHP < 5.3, or if you have the PHP
+extension installed already.
+
+## General-Use Polyfill
+
+If your users are on PHP < 5.3, or you want to write code that will work
+whether or not the PECL extension is available, you'll want to use the
+**`ParagonIE_Sodium_Compat`** class for most of your libsodium needs.
+
+The above example, written for general use:
+
+```php
+<?php
+require_once "/path/to/sodium_compat/autoload.php";
+
+$alice_kp = ParagonIE_Sodium_Compat::crypto_sign_keypair();
+$alice_sk = ParagonIE_Sodium_Compat::crypto_sign_secretkey($alice_kp);
+$alice_pk = ParagonIE_Sodium_Compat::crypto_sign_publickey($alice_kp);
+
+$message = 'This is a test message.';
+$signature = ParagonIE_Sodium_Compat::crypto_sign_detached($message, $alice_sk);
+if (ParagonIE_Sodium_Compat::crypto_sign_verify_detached($signature, $message, $alice_pk)) {
+ echo 'OK', PHP_EOL;
+} else {
+ throw new Exception('Invalid signature');
+}
+```
+
+Generally: If you replace `\Sodium\ ` with `ParagonIE_Sodium_Compat::`, any
+code already written for the libsodium PHP extension should work with our
+polyfill without additional code changes.
+
+Since this doesn't require a namespace, this API *is* exposed on PHP 5.2.
+
+Since version 0.7.0, we have our own namespaced API (`ParagonIE\Sodium\*`) to allow brevity
+in software that uses PHP 5.3+. This is useful if you want to use our file cryptography
+features without writing `ParagonIE_Sodium_File` every time. This is not exposed on PHP < 5.3,
+so if your project supports PHP < 5.3, use the underscore method instead.
+
+To learn how to use Libsodium, read [*Using Libsodium in PHP Projects*](https://paragonie.com/book/pecl-libsodium).
+
+## Help, Sodium_Compat is Slow! How can I make it fast?
+
+There are three ways to make it fast:
+
+1. Use a newer version of PHP (at least 7.2).
+2. [Install the libsodium PHP extension from PECL](https://paragonie.com/book/pecl-libsodium/read/00-intro.md#installing-libsodium).
+3. Only if the previous two options are not available for you:
+ 1. Verify that [the processor you're using actually implements constant-time multiplication](https://bearssl.org/ctmul.html).
+ Sodium_compat does, but it must trade some speed in order to attain cross-platform security.
+ 2. Only if you are 100% certain that your processor is safe, you can set `ParagonIE_Sodium_Compat::$fastMult = true;`
+ without harming the security of your cryptography keys. If your processor *isn't* safe, then decide whether you
+ want speed or security because you can't have both.
+
+### How can I tell if sodium_compat will be slow, at runtime?
+
+Since version 1.8, you can use the `polyfill_is_fast()` static method to
+determine if sodium_compat will be slow at runtime.
+
+```php
+<?php
+if (ParagonIE_Sodium_Compat::polyfill_is_fast()) {
+ // Use libsodium now
+ $process->execute();
+} else {
+ // Defer to a cron job or other sort of asynchronous process
+ $process->enqueue();
+}
+```
+
+### Help, my PHP only has 32-Bit Integers! It's super slow!
+
+If the `PHP_INT_SIZE` constant equals `4` instead of `8` (PHP 5 on Windows,
+Linux on i386, etc.), you will run into **significant performance issues**.
+
+In particular: public-key cryptography (encryption and signatures)
+is affected. There is nothing we can do about that.
+
+The root cause of these performance issues has to do with implementing cryptography
+algorithms in constant-time using 16-bit limbs (to avoid overflow) in pure PHP.
+
+To mitigate these performance issues, simply install PHP 7.2 or newer and enable
+the `sodium` extension.
+
+Affected users are encouraged to install the sodium extension (or libsodium from
+older version of PHP).
+
+Windows users on PHP 5 may be able to simply upgrade to PHP 7 and the slowdown
+will be greatly reduced.
+
+## Documentation
+
+First, you'll want to read the [Libsodium Quick Reference](https://paragonie.com/blog/2017/06/libsodium-quick-reference-quick-comparison-similar-functions-and-which-one-use).
+It aims to answer, "Which function should I use for [common problem]?".
+
+If you don't find the answers in the Quick Reference page, check out
+[*Using Libsodium in PHP Projects*](https://paragonie.com/book/pecl-libsodium).
+
+Finally, the [official libsodium documentation](https://download.libsodium.org/doc/)
+(which was written for the C library, not the PHP library) also contains a lot of
+insightful technical information you may find helpful.
+
+## API Coverage
+
+**Recommended reading:** [Libsodium Quick Reference](https://paragonie.com/blog/2017/06/libsodium-quick-reference-quick-comparison-similar-functions-and-which-one-use)
+
+* Mainline NaCl Features
+ * `crypto_auth()`
+ * `crypto_auth_verify()`
+ * `crypto_box()`
+ * `crypto_box_open()`
+ * `crypto_scalarmult()`
+ * `crypto_secretbox()`
+ * `crypto_secretbox_open()`
+ * `crypto_sign()`
+ * `crypto_sign_open()`
+* PECL Libsodium Features
+ * `crypto_aead_aes256gcm_encrypt()`
+ * `crypto_aead_aes256gcm_decrypt()`
+ * `crypto_aead_chacha20poly1305_encrypt()`
+ * `crypto_aead_chacha20poly1305_decrypt()`
+ * `crypto_aead_chacha20poly1305_ietf_encrypt()`
+ * `crypto_aead_chacha20poly1305_ietf_decrypt()`
+ * `crypto_aead_xchacha20poly1305_ietf_encrypt()`
+ * `crypto_aead_xchacha20poly1305_ietf_decrypt()`
+ * `crypto_box_xchacha20poly1305()`
+ * `crypto_box_xchacha20poly1305_open()`
+ * `crypto_box_seal()`
+ * `crypto_box_seal_open()`
+ * `crypto_generichash()`
+ * `crypto_generichash_init()`
+ * `crypto_generichash_update()`
+ * `crypto_generichash_final()`
+ * `crypto_kx()`
+ * `crypto_secretbox_xchacha20poly1305()`
+ * `crypto_secretbox_xchacha20poly1305_open()`
+ * `crypto_shorthash()`
+ * `crypto_sign_detached()`
+ * `crypto_sign_ed25519_pk_to_curve25519()`
+ * `crypto_sign_ed25519_sk_to_curve25519()`
+ * `crypto_sign_verify_detached()`
+ * For advanced users only:
+ * `crypto_core_ristretto255_add()`
+ * `crypto_core_ristretto255_from_hash()`
+ * `crypto_core_ristretto255_is_valid_point()`
+ * `crypto_core_ristretto255_random()`
+ * `crypto_core_ristretto255_scalar_add()`
+ * `crypto_core_ristretto255_scalar_complement()`
+ * `crypto_core_ristretto255_scalar_invert()`
+ * `crypto_core_ristretto255_scalar_mul()`
+ * `crypto_core_ristretto255_scalar_negate()`
+ * `crypto_core_ristretto255_scalar_random()`
+ * `crypto_core_ristretto255_scalar_reduce()`
+ * `crypto_core_ristretto255_scalar_sub()`
+ * `crypto_core_ristretto255_sub()`
+ * `crypto_scalarmult_ristretto255_base()`
+ * `crypto_scalarmult_ristretto255()`
+ * `crypto_stream()`
+ * `crypto_stream_keygen()`
+ * `crypto_stream_xor()`
+ * `crypto_stream_xchacha20()`
+ * `crypto_stream_xchacha20_keygen()`
+ * `crypto_stream_xchacha20_xor()`
+ * `crypto_stream_xchacha20_xor_ic()`
+ * Other utilities (e.g. `crypto_*_keypair()`)
+ * `add()`
+ * `base642bin()`
+ * `bin2base64()`
+ * `bin2hex()`
+ * `hex2bin()`
+ * `crypto_kdf_derive_from_key()`
+ * `crypto_kx_client_session_keys()`
+ * `crypto_kx_server_session_keys()`
+ * `crypto_secretstream_xchacha20poly1305_init_push()`
+ * `crypto_secretstream_xchacha20poly1305_push()`
+ * `crypto_secretstream_xchacha20poly1305_init_pull()`
+ * `crypto_secretstream_xchacha20poly1305_pull()`
+ * `crypto_secretstream_xchacha20poly1305_rekey()`
+ * `pad()`
+ * `unpad()`
+
+### Cryptography Primitives Provided
+
+* **X25519** - Elliptic Curve Diffie Hellman over Curve25519
+* **Ed25519** - Edwards curve Digital Signature Algorithm over Curve25519
+* **Xsalsa20** - Extended-nonce Salsa20 stream cipher
+* **ChaCha20** - Stream cipher
+* **Xchacha20** - Extended-nonce ChaCha20 stream cipher
+* **Poly1305** - Polynomial Evaluation Message Authentication Code modulo 2^130 - 5
+* **BLAKE2b** - Cryptographic Hash Function
+* **SipHash-2-4** - Fast hash, but not collision-resistant; ideal for hash tables.
+
+### Features Excluded from this Polyfill
+
+* `\Sodium\memzero()` - Although we expose this API endpoint, we can't reliably
+ zero buffers from PHP.
+
+ If you have the PHP extension installed, sodium_compat
+ will use the native implementation to zero out the string provided. Otherwise
+ it will throw a `SodiumException`.
+* `\Sodium\crypto_pwhash()` - It's not feasible to polyfill scrypt or Argon2
+ into PHP and get reasonable performance. Users would feel motivated to select
+ parameters that downgrade security to avoid denial of service (DoS) attacks.
+
+ The only winning move is not to play.
+
+ If ext/sodium or ext/libsodium is installed, these API methods will fallthrough
+ to the extension. Otherwise, our polyfill library will throw a `SodiumException`.
+
+ To detect support for Argon2i at runtime, use
+ `ParagonIE_Sodium_Compat::crypto_pwhash_is_available()`, which returns a
+ boolean value (`TRUE` or `FALSE`).
+
+### PHPCompatibility Ruleset
+
+For sodium_compat users and that utilize [`PHPCompatibility`](https://github.com/PHPCompatibility/PHPCompatibility)
+in their CI process, there is now a custom ruleset available which can be used
+to prevent false positives being thrown by `PHPCompatibility` for the native
+PHP functionality being polyfilled by this repo.
+
+You can find the repo for the `PHPCompatibilityParagonieSodiumCompat` ruleset
+here [on Github](https://github.com/PHPCompatibility/PHPCompatibilityParagonie)
+and [on Packagist](https://packagist.org/packages/phpcompatibility/phpcompatibility-paragonie).
diff --git a/vendor/paragonie/sodium_compat/autoload.php b/vendor/paragonie/sodium_compat/autoload.php
index c5c23b4..fd12f87 100644
--- a/vendor/paragonie/sodium_compat/autoload.php
+++ b/vendor/paragonie/sodium_compat/autoload.php
@@ -1,72 +1,75 @@
-<?php
-
-if (PHP_VERSION_ID < 70000) {
- if (!is_callable('sodiumCompatAutoloader')) {
- /**
- * Sodium_Compat autoloader.
- *
- * @param string $class Class name to be autoloaded.
- *
- * @return bool Stop autoloading?
- */
- function sodiumCompatAutoloader($class)
- {
- $namespace = 'ParagonIE_Sodium_';
- // Does the class use the namespace prefix?
- $len = strlen($namespace);
- if (strncmp($namespace, $class, $len) !== 0) {
- // no, move to the next registered autoloader
- return false;
- }
-
- // Get the relative class name
- $relative_class = substr($class, $len);
-
- // Replace the namespace prefix with the base directory, replace namespace
- // separators with directory separators in the relative class name, append
- // with .php
- $file = dirname(__FILE__) . '/src/' . str_replace('_', '/', $relative_class) . '.php';
- // if the file exists, require it
- if (file_exists($file)) {
- require_once $file;
- return true;
- }
- return false;
- }
-
- // Now that we have an autoloader, let's register it!
- spl_autoload_register('sodiumCompatAutoloader');
- }
-} else {
- require_once dirname(__FILE__) . '/autoload-php7.php';
-}
-
-/* Explicitly, always load the Compat class: */
-require_once dirname(__FILE__) . '/src/Compat.php';
-
-if (!class_exists('SodiumException', false)) {
- require_once dirname(__FILE__) . '/src/SodiumException.php';
-}
-if (PHP_VERSION_ID >= 50300) {
- // Namespaces didn't exist before 5.3.0, so don't even try to use this
- // unless PHP >= 5.3.0
- require_once dirname(__FILE__) . '/lib/namespaced.php';
- require_once dirname(__FILE__) . '/lib/sodium_compat.php';
-} else {
- require_once dirname(__FILE__) . '/src/PHP52/SplFixedArray.php';
-}
-if (PHP_VERSION_ID < 70200 || !extension_loaded('sodium')) {
- if (PHP_VERSION_ID >= 50300 && !defined('SODIUM_CRYPTO_SCALARMULT_BYTES')) {
- require_once dirname(__FILE__) . '/lib/php72compat_const.php';
- }
- if (PHP_VERSION_ID >= 70000) {
- assert(class_exists('ParagonIE_Sodium_Compat'), 'Possible filesystem/autoloader bug?');
- } else {
- assert(class_exists('ParagonIE_Sodium_Compat'));
- }
- require_once(dirname(__FILE__) . '/lib/php72compat.php');
-} elseif (!function_exists('sodium_crypto_stream_xchacha20_xor')) {
- // Older versions of {PHP, ext/sodium} will not define these
- require_once(dirname(__FILE__) . '/lib/php72compat.php');
-}
-require_once(dirname(__FILE__) . '/lib/ristretto255.php');
+<?php
+
+if (PHP_VERSION_ID < 70000) {
+ if (!is_callable('sodiumCompatAutoloader')) {
+ /**
+ * Sodium_Compat autoloader.
+ *
+ * @param string $class Class name to be autoloaded.
+ *
+ * @return bool Stop autoloading?
+ */
+ function sodiumCompatAutoloader($class)
+ {
+ $namespace = 'ParagonIE_Sodium_';
+ // Does the class use the namespace prefix?
+ $len = strlen($namespace);
+ if (strncmp($namespace, $class, $len) !== 0) {
+ // no, move to the next registered autoloader
+ return false;
+ }
+
+ // Get the relative class name
+ $relative_class = substr($class, $len);
+
+ // Replace the namespace prefix with the base directory, replace namespace
+ // separators with directory separators in the relative class name, append
+ // with .php
+ $file = dirname(__FILE__) . '/src/' . str_replace('_', '/', $relative_class) . '.php';
+ // if the file exists, require it
+ if (file_exists($file)) {
+ require_once $file;
+ return true;
+ }
+ return false;
+ }
+
+ // Now that we have an autoloader, let's register it!
+ spl_autoload_register('sodiumCompatAutoloader');
+ }
+} else {
+ require_once dirname(__FILE__) . '/autoload-php7.php';
+}
+
+/* Explicitly, always load the Compat class: */
+if (!class_exists('ParagonIE_Sodium_Compat', false)) {
+ require_once dirname(__FILE__) . '/src/Compat.php';
+}
+
+if (!class_exists('SodiumException', false)) {
+ require_once dirname(__FILE__) . '/src/SodiumException.php';
+}
+if (PHP_VERSION_ID >= 50300) {
+ // Namespaces didn't exist before 5.3.0, so don't even try to use this
+ // unless PHP >= 5.3.0
+ require_once dirname(__FILE__) . '/lib/namespaced.php';
+ require_once dirname(__FILE__) . '/lib/sodium_compat.php';
+} else {
+ require_once dirname(__FILE__) . '/src/PHP52/SplFixedArray.php';
+}
+if (PHP_VERSION_ID < 70200 || !extension_loaded('sodium')) {
+ if (PHP_VERSION_ID >= 50300 && !defined('SODIUM_CRYPTO_SCALARMULT_BYTES')) {
+ require_once dirname(__FILE__) . '/lib/php72compat_const.php';
+ }
+ if (PHP_VERSION_ID >= 70000) {
+ assert(class_exists('ParagonIE_Sodium_Compat'), 'Possible filesystem/autoloader bug?');
+ } else {
+ assert(class_exists('ParagonIE_Sodium_Compat'));
+ }
+ require_once(dirname(__FILE__) . '/lib/php72compat.php');
+} elseif (!function_exists('sodium_crypto_stream_xchacha20_xor')) {
+ // Older versions of {PHP, ext/sodium} will not define these
+ require_once(dirname(__FILE__) . '/lib/php72compat.php');
+}
+require_once(dirname(__FILE__) . '/lib/stream-xchacha20.php');
+require_once(dirname(__FILE__) . '/lib/ristretto255.php');
diff --git a/vendor/paragonie/sodium_compat/composer.json b/vendor/paragonie/sodium_compat/composer.json
index 09b9d84..21d6327 100644
--- a/vendor/paragonie/sodium_compat/composer.json
+++ b/vendor/paragonie/sodium_compat/composer.json
@@ -1,66 +1,66 @@
-{
- "name": "paragonie/sodium_compat",
- "description": "Pure PHP implementation of libsodium; uses the PHP extension if it exists",
- "keywords": [
- "PHP",
- "cryptography",
- "elliptic curve",
- "elliptic curve cryptography",
- "Pure-PHP cryptography",
- "side-channel resistant",
- "Curve25519",
- "X25519",
- "ECDH",
- "Elliptic Curve Diffie-Hellman",
- "Ed25519",
- "RFC 7748",
- "RFC 8032",
- "EdDSA",
- "Edwards-curve Digital Signature Algorithm",
- "ChaCha20",
- "Salsa20",
- "Xchacha20",
- "Xsalsa20",
- "Poly1305",
- "BLAKE2b",
- "public-key cryptography",
- "secret-key cryptography",
- "AEAD",
- "Chapoly",
- "Salpoly",
- "ChaCha20-Poly1305",
- "XSalsa20-Poly1305",
- "XChaCha20-Poly1305",
- "encryption",
- "authentication",
- "libsodium"
- ],
- "license": "ISC",
- "authors": [
- {
- "name": "Paragon Initiative Enterprises",
- "email": "security@paragonie.com"
- },
- {
- "name": "Frank Denis",
- "email": "jedisct1@pureftpd.org"
- }
- ],
- "autoload": {
- "files": ["autoload.php"]
- },
- "require": {
- "php": "^5.2.4|^5.3|^5.4|^5.5|^5.6|^7|^8",
- "paragonie/random_compat": ">=1"
- },
- "require-dev": {
- "phpunit/phpunit": "^3|^4|^5|^6|^7|^8|^9"
- },
- "scripts": {
- "test": "phpunit"
- },
- "suggest": {
- "ext-libsodium": "PHP < 7.0: Better performance, password hashing (Argon2i), secure memory management (memzero), and better security.",
- "ext-sodium": "PHP >= 7.0: Better performance, password hashing (Argon2i), secure memory management (memzero), and better security."
- }
-}
+{
+ "name": "paragonie/sodium_compat",
+ "description": "Pure PHP implementation of libsodium; uses the PHP extension if it exists",
+ "keywords": [
+ "PHP",
+ "cryptography",
+ "elliptic curve",
+ "elliptic curve cryptography",
+ "Pure-PHP cryptography",
+ "side-channel resistant",
+ "Curve25519",
+ "X25519",
+ "ECDH",
+ "Elliptic Curve Diffie-Hellman",
+ "Ed25519",
+ "RFC 7748",
+ "RFC 8032",
+ "EdDSA",
+ "Edwards-curve Digital Signature Algorithm",
+ "ChaCha20",
+ "Salsa20",
+ "Xchacha20",
+ "Xsalsa20",
+ "Poly1305",
+ "BLAKE2b",
+ "public-key cryptography",
+ "secret-key cryptography",
+ "AEAD",
+ "Chapoly",
+ "Salpoly",
+ "ChaCha20-Poly1305",
+ "XSalsa20-Poly1305",
+ "XChaCha20-Poly1305",
+ "encryption",
+ "authentication",
+ "libsodium"
+ ],
+ "license": "ISC",
+ "authors": [
+ {
+ "name": "Paragon Initiative Enterprises",
+ "email": "security@paragonie.com"
+ },
+ {
+ "name": "Frank Denis",
+ "email": "jedisct1@pureftpd.org"
+ }
+ ],
+ "autoload": {
+ "files": ["autoload.php"]
+ },
+ "require": {
+ "php": "^5.2.4|^5.3|^5.4|^5.5|^5.6|^7|^8",
+ "paragonie/random_compat": ">=1"
+ },
+ "require-dev": {
+ "phpunit/phpunit": "^3|^4|^5|^6|^7|^8|^9"
+ },
+ "scripts": {
+ "test": "phpunit"
+ },
+ "suggest": {
+ "ext-libsodium": "PHP < 7.0: Better performance, password hashing (Argon2i), secure memory management (memzero), and better security.",
+ "ext-sodium": "PHP >= 7.0: Better performance, password hashing (Argon2i), secure memory management (memzero), and better security."
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/lib/php72compat.php b/vendor/paragonie/sodium_compat/lib/php72compat.php
index c2b065f..e949dbd 100644
--- a/vendor/paragonie/sodium_compat/lib/php72compat.php
+++ b/vendor/paragonie/sodium_compat/lib/php72compat.php
@@ -1,1369 +1,1435 @@
-<?php
-
-require_once dirname(dirname(__FILE__)) . '/autoload.php';
-
-/**
- * This file will monkey patch the pure-PHP implementation in place of the
- * PECL functions and constants, but only if they do not already exist.
- *
- * Thus, the functions or constants just proxy to the appropriate
- * ParagonIE_Sodium_Compat method or class constant, respectively.
- */
-foreach (array(
- 'BASE64_VARIANT_ORIGINAL',
- 'BASE64_VARIANT_ORIGINAL_NO_PADDING',
- 'BASE64_VARIANT_URLSAFE',
- 'BASE64_VARIANT_URLSAFE_NO_PADDING',
- 'CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES',
- 'CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES',
- 'CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES',
- 'CRYPTO_AEAD_CHACHA20POLY1305_ABYTES',
- 'CRYPTO_AEAD_AES256GCM_KEYBYTES',
- 'CRYPTO_AEAD_AES256GCM_NSECBYTES',
- 'CRYPTO_AEAD_AES256GCM_NPUBBYTES',
- 'CRYPTO_AEAD_AES256GCM_ABYTES',
- 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES',
- 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES',
- 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES',
- 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES',
- 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES',
- 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NSECBYTES',
- 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES',
- 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES',
- 'CRYPTO_AUTH_BYTES',
- 'CRYPTO_AUTH_KEYBYTES',
- 'CRYPTO_BOX_SEALBYTES',
- 'CRYPTO_BOX_SECRETKEYBYTES',
- 'CRYPTO_BOX_PUBLICKEYBYTES',
- 'CRYPTO_BOX_KEYPAIRBYTES',
- 'CRYPTO_BOX_MACBYTES',
- 'CRYPTO_BOX_NONCEBYTES',
- 'CRYPTO_BOX_SEEDBYTES',
- 'CRYPTO_KDF_BYTES_MIN',
- 'CRYPTO_KDF_BYTES_MAX',
- 'CRYPTO_KDF_CONTEXTBYTES',
- 'CRYPTO_KDF_KEYBYTES',
- 'CRYPTO_KX_BYTES',
- 'CRYPTO_KX_KEYPAIRBYTES',
- 'CRYPTO_KX_PRIMITIVE',
- 'CRYPTO_KX_SEEDBYTES',
- 'CRYPTO_KX_PUBLICKEYBYTES',
- 'CRYPTO_KX_SECRETKEYBYTES',
- 'CRYPTO_KX_SESSIONKEYBYTES',
- 'CRYPTO_GENERICHASH_BYTES',
- 'CRYPTO_GENERICHASH_BYTES_MIN',
- 'CRYPTO_GENERICHASH_BYTES_MAX',
- 'CRYPTO_GENERICHASH_KEYBYTES',
- 'CRYPTO_GENERICHASH_KEYBYTES_MIN',
- 'CRYPTO_GENERICHASH_KEYBYTES_MAX',
- 'CRYPTO_PWHASH_SALTBYTES',
- 'CRYPTO_PWHASH_STRPREFIX',
- 'CRYPTO_PWHASH_ALG_ARGON2I13',
- 'CRYPTO_PWHASH_ALG_ARGON2ID13',
- 'CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE',
- 'CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE',
- 'CRYPTO_PWHASH_MEMLIMIT_MODERATE',
- 'CRYPTO_PWHASH_OPSLIMIT_MODERATE',
- 'CRYPTO_PWHASH_MEMLIMIT_SENSITIVE',
- 'CRYPTO_PWHASH_OPSLIMIT_SENSITIVE',
- 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES',
- 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX',
- 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE',
- 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE',
- 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE',
- 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE',
- 'CRYPTO_SCALARMULT_BYTES',
- 'CRYPTO_SCALARMULT_SCALARBYTES',
- 'CRYPTO_SHORTHASH_BYTES',
- 'CRYPTO_SHORTHASH_KEYBYTES',
- 'CRYPTO_SECRETBOX_KEYBYTES',
- 'CRYPTO_SECRETBOX_MACBYTES',
- 'CRYPTO_SECRETBOX_NONCEBYTES',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PUSH',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PULL',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_FINAL',
- 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX',
- 'CRYPTO_SIGN_BYTES',
- 'CRYPTO_SIGN_SEEDBYTES',
- 'CRYPTO_SIGN_PUBLICKEYBYTES',
- 'CRYPTO_SIGN_SECRETKEYBYTES',
- 'CRYPTO_SIGN_KEYPAIRBYTES',
- 'CRYPTO_STREAM_KEYBYTES',
- 'CRYPTO_STREAM_NONCEBYTES',
- 'CRYPTO_STREAM_XCHACHA20_KEYBYTES',
- 'CRYPTO_STREAM_XCHACHA20_NONCEBYTES',
- 'LIBRARY_MAJOR_VERSION',
- 'LIBRARY_MINOR_VERSION',
- 'LIBRARY_VERSION_MAJOR',
- 'LIBRARY_VERSION_MINOR',
- 'VERSION_STRING'
- ) as $constant
-) {
- if (!defined("SODIUM_$constant") && defined("ParagonIE_Sodium_Compat::$constant")) {
- define("SODIUM_$constant", constant("ParagonIE_Sodium_Compat::$constant"));
- }
-}
-if (!is_callable('sodium_add')) {
- /**
- * @see ParagonIE_Sodium_Compat::add()
- * @param string $val
- * @param string $addv
- * @return void
- * @throws SodiumException
- */
- function sodium_add(&$val, $addv)
- {
- ParagonIE_Sodium_Compat::add($val, $addv);
- }
-}
-if (!is_callable('sodium_base642bin')) {
- /**
- * @see ParagonIE_Sodium_Compat::bin2base64()
- * @param string $string
- * @param int $variant
- * @param string $ignore
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_base642bin($string, $variant, $ignore ='')
- {
- return ParagonIE_Sodium_Compat::base642bin($string, $variant, $ignore);
- }
-}
-if (!is_callable('sodium_bin2base64')) {
- /**
- * @see ParagonIE_Sodium_Compat::bin2base64()
- * @param string $string
- * @param int $variant
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_bin2base64($string, $variant)
- {
- return ParagonIE_Sodium_Compat::bin2base64($string, $variant);
- }
-}
-if (!is_callable('sodium_bin2hex')) {
- /**
- * @see ParagonIE_Sodium_Compat::hex2bin()
- * @param string $string
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_bin2hex($string)
- {
- return ParagonIE_Sodium_Compat::bin2hex($string);
- }
-}
-if (!is_callable('sodium_compare')) {
- /**
- * @see ParagonIE_Sodium_Compat::compare()
- * @param string $a
- * @param string $b
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_compare($a, $b)
- {
- return ParagonIE_Sodium_Compat::compare($a, $b);
- }
-}
-if (!is_callable('sodium_crypto_aead_aes256gcm_decrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function sodium_crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key);
- } catch (Error $ex) {
- return false;
- } catch (Exception $ex) {
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_aead_aes256gcm_encrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key);
- }
-}
-if (!is_callable('sodium_crypto_aead_aes256gcm_is_available')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available()
- * @return bool
- */
- function sodium_crypto_aead_aes256gcm_is_available()
- {
- return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available();
- }
-}
-if (!is_callable('sodium_crypto_aead_chacha20poly1305_decrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function sodium_crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key);
- } catch (Error $ex) {
- return false;
- } catch (Exception $ex) {
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_aead_chacha20poly1305_encrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key);
- }
-}
-if (!is_callable('sodium_crypto_aead_chacha20poly1305_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_aead_chacha20poly1305_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_keygen();
- }
-}
-if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_decrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function sodium_crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key);
- } catch (Error $ex) {
- return false;
- } catch (Exception $ex) {
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_encrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key);
- }
-}
-if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_aead_chacha20poly1305_ietf_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_keygen();
- }
-}
-if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_decrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_decrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function sodium_crypto_aead_xchacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key, true);
- } catch (Error $ex) {
- return false;
- } catch (Exception $ex) {
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_encrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_aead_xchacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key, true);
- }
-}
-if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_aead_xchacha20poly1305_ietf_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_keygen();
- }
-}
-if (!is_callable('sodium_crypto_auth')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_auth()
- * @param string $message
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_auth($message, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_auth($message, $key);
- }
-}
-if (!is_callable('sodium_crypto_auth_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_auth_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_auth_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_auth_keygen();
- }
-}
-if (!is_callable('sodium_crypto_auth_verify')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_auth_verify()
- * @param string $mac
- * @param string $message
- * @param string $key
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_auth_verify($mac, $message, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_auth_verify($mac, $message, $key);
- }
-}
-if (!is_callable('sodium_crypto_box')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box()
- * @param string $message
- * @param string $nonce
- * @param string $kp
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box($message, $nonce, $kp)
- {
- return ParagonIE_Sodium_Compat::crypto_box($message, $nonce, $kp);
- }
-}
-if (!is_callable('sodium_crypto_box_keypair')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_keypair()
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box_keypair()
- {
- return ParagonIE_Sodium_Compat::crypto_box_keypair();
- }
-}
-if (!is_callable('sodium_crypto_box_keypair_from_secretkey_and_publickey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey()
- * @param string $sk
- * @param string $pk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box_keypair_from_secretkey_and_publickey($sk, $pk)
- {
- return ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey($sk, $pk);
- }
-}
-if (!is_callable('sodium_crypto_box_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_open()
- * @param string $message
- * @param string $nonce
- * @param string $kp
- * @return string|bool
- */
- function sodium_crypto_box_open($message, $nonce, $kp)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_box_open($message, $nonce, $kp);
- } catch (Error $ex) {
- return false;
- } catch (Exception $ex) {
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_box_publickey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_publickey()
- * @param string $keypair
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box_publickey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_box_publickey($keypair);
- }
-}
-if (!is_callable('sodium_crypto_box_publickey_from_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey()
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box_publickey_from_secretkey($sk)
- {
- return ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey($sk);
- }
-}
-if (!is_callable('sodium_crypto_box_seal')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_seal()
- * @param string $message
- * @param string $publicKey
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box_seal($message, $publicKey)
- {
- return ParagonIE_Sodium_Compat::crypto_box_seal($message, $publicKey);
- }
-}
-if (!is_callable('sodium_crypto_box_seal_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_seal_open()
- * @param string $message
- * @param string $kp
- * @return string|bool
- * @throws SodiumException
- */
- function sodium_crypto_box_seal_open($message, $kp)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_box_seal_open($message, $kp);
- } catch (SodiumException $ex) {
- if ($ex->getMessage() === 'Argument 2 must be CRYPTO_BOX_KEYPAIRBYTES long.') {
- throw $ex;
- }
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_box_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_secretkey()
- * @param string $keypair
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box_secretkey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_box_secretkey($keypair);
- }
-}
-if (!is_callable('sodium_crypto_box_seed_keypair')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_seed_keypair()
- * @param string $seed
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_box_seed_keypair($seed)
- {
- return ParagonIE_Sodium_Compat::crypto_box_seed_keypair($seed);
- }
-}
-if (!is_callable('sodium_crypto_generichash')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash()
- * @param string $message
- * @param string|null $key
- * @param int $outLen
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_generichash($message, $key = null, $outLen = 32)
- {
- return ParagonIE_Sodium_Compat::crypto_generichash($message, $key, $outLen);
- }
-}
-if (!is_callable('sodium_crypto_generichash_final')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash_final()
- * @param string|null $ctx
- * @param int $outputLength
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_generichash_final(&$ctx, $outputLength = 32)
- {
- return ParagonIE_Sodium_Compat::crypto_generichash_final($ctx, $outputLength);
- }
-}
-if (!is_callable('sodium_crypto_generichash_init')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash_init()
- * @param string|null $key
- * @param int $outLen
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_generichash_init($key = null, $outLen = 32)
- {
- return ParagonIE_Sodium_Compat::crypto_generichash_init($key, $outLen);
- }
-}
-if (!is_callable('sodium_crypto_generichash_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_generichash_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_generichash_keygen();
- }
-}
-if (!is_callable('sodium_crypto_generichash_update')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash_update()
- * @param string|null $ctx
- * @param string $message
- * @return void
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_generichash_update(&$ctx, $message = '')
- {
- ParagonIE_Sodium_Compat::crypto_generichash_update($ctx, $message);
- }
-}
-if (!is_callable('sodium_crypto_kdf_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_kdf_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_kdf_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_kdf_keygen();
- }
-}
-if (!is_callable('sodium_crypto_kdf_derive_from_key')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_kdf_derive_from_key()
- * @param int $subkey_len
- * @param int $subkey_id
- * @param string $context
- * @param string $key
- * @return string
- * @throws Exception
- */
- function sodium_crypto_kdf_derive_from_key($subkey_len, $subkey_id, $context, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_kdf_derive_from_key(
- $subkey_len,
- $subkey_id,
- $context,
- $key
- );
- }
-}
-if (!is_callable('sodium_crypto_kx')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_kx()
- * @param string $my_secret
- * @param string $their_public
- * @param string $client_public
- * @param string $server_public
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_kx($my_secret, $their_public, $client_public, $server_public)
- {
- return ParagonIE_Sodium_Compat::crypto_kx(
- $my_secret,
- $their_public,
- $client_public,
- $server_public
- );
- }
-}
-if (!is_callable('sodium_crypto_kx_seed_keypair')) {
- /**
- * @param string $seed
- * @return string
- * @throws Exception
- */
- function sodium_crypto_kx_seed_keypair($seed)
- {
- return ParagonIE_Sodium_Compat::crypto_kx_seed_keypair($seed);
- }
-}
-if (!is_callable('sodium_crypto_kx_keypair')) {
- /**
- * @return string
- * @throws Exception
- */
- function sodium_crypto_kx_keypair()
- {
- return ParagonIE_Sodium_Compat::crypto_kx_keypair();
- }
-}
-if (!is_callable('sodium_crypto_kx_client_session_keys')) {
- /**
- * @param string $keypair
- * @param string $serverPublicKey
- * @return array{0: string, 1: string}
- * @throws SodiumException
- */
- function sodium_crypto_kx_client_session_keys($keypair, $serverPublicKey)
- {
- return ParagonIE_Sodium_Compat::crypto_kx_client_session_keys($keypair, $serverPublicKey);
- }
-}
-if (!is_callable('sodium_crypto_kx_server_session_keys')) {
- /**
- * @param string $keypair
- * @param string $clientPublicKey
- * @return array{0: string, 1: string}
- * @throws SodiumException
- */
- function sodium_crypto_kx_server_session_keys($keypair, $clientPublicKey)
- {
- return ParagonIE_Sodium_Compat::crypto_kx_server_session_keys($keypair, $clientPublicKey);
- }
-}
-if (!is_callable('sodium_crypto_kx_secretkey')) {
- /**
- * @param string $keypair
- * @return string
- * @throws Exception
- */
- function sodium_crypto_kx_secretkey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_kx_secretkey($keypair);
- }
-}
-if (!is_callable('sodium_crypto_kx_publickey')) {
- /**
- * @param string $keypair
- * @return string
- * @throws Exception
- */
- function sodium_crypto_kx_publickey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_kx_publickey($keypair);
- }
-}
-if (!is_callable('sodium_crypto_pwhash')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash()
- * @param int $outlen
- * @param string $passwd
- * @param string $salt
- * @param int $opslimit
- * @param int $memlimit
- * @param int|null $algo
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $algo = null)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $algo);
- }
-}
-if (!is_callable('sodium_crypto_pwhash_str')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_str()
- * @param string $passwd
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_pwhash_str($passwd, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_str($passwd, $opslimit, $memlimit);
- }
-}
-if (!is_callable('sodium_crypto_pwhash_str_needs_rehash')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_needs_rehash()
- * @param string $hash
- * @param int $opslimit
- * @param int $memlimit
- * @return bool
- *
- * @throws SodiumException
- */
- function sodium_crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit);
- }
-}
-if (!is_callable('sodium_crypto_pwhash_str_verify')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_verify()
- * @param string $passwd
- * @param string $hash
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_pwhash_str_verify($passwd, $hash)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_str_verify($passwd, $hash);
- }
-}
-if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256()
- * @param int $outlen
- * @param string $passwd
- * @param string $salt
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit);
- }
-}
-if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256_str')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str()
- * @param string $passwd
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit);
- }
-}
-if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256_str_verify')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify()
- * @param string $passwd
- * @param string $hash
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash);
- }
-}
-if (!is_callable('sodium_crypto_scalarmult')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_scalarmult()
- * @param string $n
- * @param string $p
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_scalarmult($n, $p)
- {
- return ParagonIE_Sodium_Compat::crypto_scalarmult($n, $p);
- }
-}
-if (!is_callable('sodium_crypto_scalarmult_base')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_scalarmult_base()
- * @param string $n
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_scalarmult_base($n)
- {
- return ParagonIE_Sodium_Compat::crypto_scalarmult_base($n);
- }
-}
-if (!is_callable('sodium_crypto_secretbox')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_secretbox()
- * @param string $message
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_secretbox($message, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_secretbox($message, $nonce, $key);
- }
-}
-if (!is_callable('sodium_crypto_secretbox_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_secretbox_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_secretbox_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_secretbox_keygen();
- }
-}
-if (!is_callable('sodium_crypto_secretbox_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_secretbox_open()
- * @param string $message
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function sodium_crypto_secretbox_open($message, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_secretbox_open($message, $nonce, $key);
- } catch (Error $ex) {
- return false;
- } catch (Exception $ex) {
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_init_push')) {
- /**
- * @param string $key
- * @return array<int, string>
- * @throws SodiumException
- */
- function sodium_crypto_secretstream_xchacha20poly1305_init_push($key)
- {
- return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_init_push($key);
- }
-}
-if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_push')) {
- /**
- * @param string $state
- * @param string $msg
- * @param string $aad
- * @param int $tag
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_secretstream_xchacha20poly1305_push(&$state, $msg, $aad = '', $tag = 0)
- {
- return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_push($state, $msg, $aad, $tag);
- }
-}
-if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_init_pull')) {
- /**
- * @param string $header
- * @param string $key
- * @return string
- * @throws Exception
- */
- function sodium_crypto_secretstream_xchacha20poly1305_init_pull($header, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_init_pull($header, $key);
- }
-}
-if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_pull')) {
- /**
- * @param string $state
- * @param string $cipher
- * @param string $aad
- * @return bool|array{0: string, 1: int}
- * @throws SodiumException
- */
- function sodium_crypto_secretstream_xchacha20poly1305_pull(&$state, $cipher, $aad = '')
- {
- return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_pull($state, $cipher, $aad);
- }
-}
-if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_rekey')) {
- /**
- * @param string $state
- * @return void
- * @throws SodiumException
- */
- function sodium_crypto_secretstream_xchacha20poly1305_rekey(&$state)
- {
- ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_rekey($state);
- }
-}
-if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_keygen')) {
- /**
- * @return string
- * @throws Exception
- */
- function sodium_crypto_secretstream_xchacha20poly1305_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_keygen();
- }
-}
-if (!is_callable('sodium_crypto_shorthash')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_shorthash()
- * @param string $message
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_shorthash($message, $key = '')
- {
- return ParagonIE_Sodium_Compat::crypto_shorthash($message, $key);
- }
-}
-if (!is_callable('sodium_crypto_shorthash_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_shorthash_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_shorthash_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_shorthash_keygen();
- }
-}
-if (!is_callable('sodium_crypto_sign')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign()
- * @param string $message
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign($message, $sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign($message, $sk);
- }
-}
-if (!is_callable('sodium_crypto_sign_detached')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_detached()
- * @param string $message
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_detached($message, $sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_detached($message, $sk);
- }
-}
-if (!is_callable('sodium_crypto_sign_keypair_from_secretkey_and_publickey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_keypair_from_secretkey_and_publickey()
- * @param string $sk
- * @param string $pk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk);
- }
-}
-if (!is_callable('sodium_crypto_sign_keypair')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_keypair()
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_keypair()
- {
- return ParagonIE_Sodium_Compat::crypto_sign_keypair();
- }
-}
-if (!is_callable('sodium_crypto_sign_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_open()
- * @param string $signedMessage
- * @param string $pk
- * @return string|bool
- */
- function sodium_crypto_sign_open($signedMessage, $pk)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_sign_open($signedMessage, $pk);
- } catch (Error $ex) {
- return false;
- } catch (Exception $ex) {
- return false;
- }
- }
-}
-if (!is_callable('sodium_crypto_sign_publickey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_publickey()
- * @param string $keypair
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_publickey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_publickey($keypair);
- }
-}
-if (!is_callable('sodium_crypto_sign_publickey_from_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey()
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_publickey_from_secretkey($sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey($sk);
- }
-}
-if (!is_callable('sodium_crypto_sign_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_secretkey()
- * @param string $keypair
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_secretkey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_secretkey($keypair);
- }
-}
-if (!is_callable('sodium_crypto_sign_seed_keypair')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_seed_keypair()
- * @param string $seed
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_seed_keypair($seed)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_seed_keypair($seed);
- }
-}
-if (!is_callable('sodium_crypto_sign_verify_detached')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_verify_detached()
- * @param string $signature
- * @param string $message
- * @param string $pk
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_verify_detached($signature, $message, $pk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_verify_detached($signature, $message, $pk);
- }
-}
-if (!is_callable('sodium_crypto_sign_ed25519_pk_to_curve25519')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519()
- * @param string $pk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_ed25519_pk_to_curve25519($pk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519($pk);
- }
-}
-if (!is_callable('sodium_crypto_sign_ed25519_sk_to_curve25519')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519()
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_sign_ed25519_sk_to_curve25519($sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519($sk);
- }
-}
-if (!is_callable('sodium_crypto_stream')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream()
- * @param int $len
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_stream($len, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_stream($len, $nonce, $key);
- }
-}
-if (!is_callable('sodium_crypto_stream_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_stream_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_stream_keygen();
- }
-}
-if (!is_callable('sodium_crypto_stream_xor')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream_xor()
- * @param string $message
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_stream_xor($message, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_stream_xor($message, $nonce, $key);
- }
-}
-require_once dirname(__FILE__) . '/stream-xchacha20.php';
-if (!is_callable('sodium_hex2bin')) {
- /**
- * @see ParagonIE_Sodium_Compat::hex2bin()
- * @param string $string
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_hex2bin($string)
- {
- return ParagonIE_Sodium_Compat::hex2bin($string);
- }
-}
-if (!is_callable('sodium_increment')) {
- /**
- * @see ParagonIE_Sodium_Compat::increment()
- * @param string $string
- * @return void
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_increment(&$string)
- {
- ParagonIE_Sodium_Compat::increment($string);
- }
-}
-if (!is_callable('sodium_library_version_major')) {
- /**
- * @see ParagonIE_Sodium_Compat::library_version_major()
- * @return int
- */
- function sodium_library_version_major()
- {
- return ParagonIE_Sodium_Compat::library_version_major();
- }
-}
-if (!is_callable('sodium_library_version_minor')) {
- /**
- * @see ParagonIE_Sodium_Compat::library_version_minor()
- * @return int
- */
- function sodium_library_version_minor()
- {
- return ParagonIE_Sodium_Compat::library_version_minor();
- }
-}
-if (!is_callable('sodium_version_string')) {
- /**
- * @see ParagonIE_Sodium_Compat::version_string()
- * @return string
- */
- function sodium_version_string()
- {
- return ParagonIE_Sodium_Compat::version_string();
- }
-}
-if (!is_callable('sodium_memcmp')) {
- /**
- * @see ParagonIE_Sodium_Compat::memcmp()
- * @param string $a
- * @param string $b
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_memcmp($a, $b)
- {
- return ParagonIE_Sodium_Compat::memcmp($a, $b);
- }
-}
-if (!is_callable('sodium_memzero')) {
- /**
- * @see ParagonIE_Sodium_Compat::memzero()
- * @param string $str
- * @return void
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_memzero(&$str)
- {
- ParagonIE_Sodium_Compat::memzero($str);
- }
-}
-if (!is_callable('sodium_pad')) {
- /**
- * @see ParagonIE_Sodium_Compat::pad()
- * @param string $unpadded
- * @param int $blockSize
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_pad($unpadded, $blockSize)
- {
- return ParagonIE_Sodium_Compat::pad($unpadded, $blockSize, true);
- }
-}
-if (!is_callable('sodium_unpad')) {
- /**
- * @see ParagonIE_Sodium_Compat::pad()
- * @param string $padded
- * @param int $blockSize
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_unpad($padded, $blockSize)
- {
- return ParagonIE_Sodium_Compat::unpad($padded, $blockSize, true);
- }
-}
-if (!is_callable('sodium_randombytes_buf')) {
- /**
- * @see ParagonIE_Sodium_Compat::randombytes_buf()
- * @param int $amount
- * @return string
- * @throws Exception
- */
- function sodium_randombytes_buf($amount)
- {
- return ParagonIE_Sodium_Compat::randombytes_buf($amount);
- }
-}
-
-if (!is_callable('sodium_randombytes_uniform')) {
- /**
- * @see ParagonIE_Sodium_Compat::randombytes_uniform()
- * @param int $upperLimit
- * @return int
- * @throws Exception
- */
- function sodium_randombytes_uniform($upperLimit)
- {
- return ParagonIE_Sodium_Compat::randombytes_uniform($upperLimit);
- }
-}
-
-if (!is_callable('sodium_randombytes_random16')) {
- /**
- * @see ParagonIE_Sodium_Compat::randombytes_random16()
- * @return int
- * @throws Exception
- */
- function sodium_randombytes_random16()
- {
- return ParagonIE_Sodium_Compat::randombytes_random16();
- }
-}
+<?php
+
+require_once dirname(dirname(__FILE__)) . '/autoload.php';
+
+/**
+ * This file will monkey patch the pure-PHP implementation in place of the
+ * PECL functions and constants, but only if they do not already exist.
+ *
+ * Thus, the functions or constants just proxy to the appropriate
+ * ParagonIE_Sodium_Compat method or class constant, respectively.
+ */
+foreach (array(
+ 'BASE64_VARIANT_ORIGINAL',
+ 'BASE64_VARIANT_ORIGINAL_NO_PADDING',
+ 'BASE64_VARIANT_URLSAFE',
+ 'BASE64_VARIANT_URLSAFE_NO_PADDING',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_ABYTES',
+ 'CRYPTO_AEAD_AES256GCM_KEYBYTES',
+ 'CRYPTO_AEAD_AES256GCM_NSECBYTES',
+ 'CRYPTO_AEAD_AES256GCM_NPUBBYTES',
+ 'CRYPTO_AEAD_AES256GCM_ABYTES',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES',
+ 'CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES',
+ 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES',
+ 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NSECBYTES',
+ 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES',
+ 'CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES',
+ 'CRYPTO_AUTH_BYTES',
+ 'CRYPTO_AUTH_KEYBYTES',
+ 'CRYPTO_BOX_SEALBYTES',
+ 'CRYPTO_BOX_SECRETKEYBYTES',
+ 'CRYPTO_BOX_PUBLICKEYBYTES',
+ 'CRYPTO_BOX_KEYPAIRBYTES',
+ 'CRYPTO_BOX_MACBYTES',
+ 'CRYPTO_BOX_NONCEBYTES',
+ 'CRYPTO_BOX_SEEDBYTES',
+ 'CRYPTO_KDF_BYTES_MIN',
+ 'CRYPTO_KDF_BYTES_MAX',
+ 'CRYPTO_KDF_CONTEXTBYTES',
+ 'CRYPTO_KDF_KEYBYTES',
+ 'CRYPTO_KX_BYTES',
+ 'CRYPTO_KX_KEYPAIRBYTES',
+ 'CRYPTO_KX_PRIMITIVE',
+ 'CRYPTO_KX_SEEDBYTES',
+ 'CRYPTO_KX_PUBLICKEYBYTES',
+ 'CRYPTO_KX_SECRETKEYBYTES',
+ 'CRYPTO_KX_SESSIONKEYBYTES',
+ 'CRYPTO_GENERICHASH_BYTES',
+ 'CRYPTO_GENERICHASH_BYTES_MIN',
+ 'CRYPTO_GENERICHASH_BYTES_MAX',
+ 'CRYPTO_GENERICHASH_KEYBYTES',
+ 'CRYPTO_GENERICHASH_KEYBYTES_MIN',
+ 'CRYPTO_GENERICHASH_KEYBYTES_MAX',
+ 'CRYPTO_PWHASH_SALTBYTES',
+ 'CRYPTO_PWHASH_STRPREFIX',
+ 'CRYPTO_PWHASH_ALG_ARGON2I13',
+ 'CRYPTO_PWHASH_ALG_ARGON2ID13',
+ 'CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE',
+ 'CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE',
+ 'CRYPTO_PWHASH_MEMLIMIT_MODERATE',
+ 'CRYPTO_PWHASH_OPSLIMIT_MODERATE',
+ 'CRYPTO_PWHASH_MEMLIMIT_SENSITIVE',
+ 'CRYPTO_PWHASH_OPSLIMIT_SENSITIVE',
+ 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES',
+ 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX',
+ 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE',
+ 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE',
+ 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE',
+ 'CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE',
+ 'CRYPTO_SCALARMULT_BYTES',
+ 'CRYPTO_SCALARMULT_SCALARBYTES',
+ 'CRYPTO_SHORTHASH_BYTES',
+ 'CRYPTO_SHORTHASH_KEYBYTES',
+ 'CRYPTO_SECRETBOX_KEYBYTES',
+ 'CRYPTO_SECRETBOX_MACBYTES',
+ 'CRYPTO_SECRETBOX_NONCEBYTES',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PUSH',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PULL',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_FINAL',
+ 'CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX',
+ 'CRYPTO_SIGN_BYTES',
+ 'CRYPTO_SIGN_SEEDBYTES',
+ 'CRYPTO_SIGN_PUBLICKEYBYTES',
+ 'CRYPTO_SIGN_SECRETKEYBYTES',
+ 'CRYPTO_SIGN_KEYPAIRBYTES',
+ 'CRYPTO_STREAM_KEYBYTES',
+ 'CRYPTO_STREAM_NONCEBYTES',
+ 'CRYPTO_STREAM_XCHACHA20_KEYBYTES',
+ 'CRYPTO_STREAM_XCHACHA20_NONCEBYTES',
+ 'LIBRARY_MAJOR_VERSION',
+ 'LIBRARY_MINOR_VERSION',
+ 'LIBRARY_VERSION_MAJOR',
+ 'LIBRARY_VERSION_MINOR',
+ 'VERSION_STRING'
+ ) as $constant
+) {
+ if (!defined("SODIUM_$constant") && defined("ParagonIE_Sodium_Compat::$constant")) {
+ define("SODIUM_$constant", constant("ParagonIE_Sodium_Compat::$constant"));
+ }
+}
+if (!is_callable('sodium_add')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::add()
+ * @param string $string1
+ * @param string $string2
+ * @return void
+ * @throws SodiumException
+ */
+ function sodium_add(&$string1, $string2)
+ {
+ ParagonIE_Sodium_Compat::add($string1, $string2);
+ }
+}
+if (!is_callable('sodium_base642bin')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::bin2base64()
+ * @param string $string
+ * @param int $variant
+ * @param string $ignore
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_base642bin($string, $variant, $ignore ='')
+ {
+ return ParagonIE_Sodium_Compat::base642bin($string, $variant, $ignore);
+ }
+}
+if (!is_callable('sodium_bin2base64')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::bin2base64()
+ * @param string $string
+ * @param int $variant
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_bin2base64($string, $variant)
+ {
+ return ParagonIE_Sodium_Compat::bin2base64($string, $variant);
+ }
+}
+if (!is_callable('sodium_bin2hex')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::hex2bin()
+ * @param string $string
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_bin2hex($string)
+ {
+ return ParagonIE_Sodium_Compat::bin2hex($string);
+ }
+}
+if (!is_callable('sodium_compare')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::compare()
+ * @param string $string1
+ * @param string $string2
+ * @return int
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_compare($string1, $string2)
+ {
+ return ParagonIE_Sodium_Compat::compare($string1, $string2);
+ }
+}
+if (!is_callable('sodium_crypto_aead_aes256gcm_decrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt()
+ * @param string $ciphertext
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function sodium_crypto_aead_aes256gcm_decrypt($ciphertext, $additional_data, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt(
+ $ciphertext,
+ $additional_data,
+ $nonce,
+ $key
+ );
+ } catch (Error $ex) {
+ return false;
+ } catch (Exception $ex) {
+ if (($ex instanceof SodiumException) && ($ex->getMessage() === 'AES-256-GCM is not available')) {
+ throw $ex;
+ }
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_aead_aes256gcm_encrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt()
+ * @param string $message
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_aead_aes256gcm_encrypt($message, $additional_data, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt($message, $additional_data, $nonce, $key);
+ }
+}
+if (!is_callable('sodium_crypto_aead_aes256gcm_is_available')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available()
+ * @return bool
+ */
+ function sodium_crypto_aead_aes256gcm_is_available()
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available();
+ }
+}
+if (!is_callable('sodium_crypto_aead_chacha20poly1305_decrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt()
+ * @param string $ciphertext
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function sodium_crypto_aead_chacha20poly1305_decrypt($ciphertext, $additional_data, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt(
+ $ciphertext,
+ $additional_data,
+ $nonce,
+ $key
+ );
+ } catch (Error $ex) {
+ return false;
+ } catch (Exception $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_aead_chacha20poly1305_encrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt()
+ * @param string $message
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_aead_chacha20poly1305_encrypt($message, $additional_data, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt(
+ $message,
+ $additional_data,
+ $nonce,
+ $key
+ );
+ }
+}
+if (!is_callable('sodium_crypto_aead_chacha20poly1305_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_aead_chacha20poly1305_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_decrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt()
+ * @param string $message
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function sodium_crypto_aead_chacha20poly1305_ietf_decrypt($message, $additional_data, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt(
+ $message,
+ $additional_data,
+ $nonce,
+ $key
+ );
+ } catch (Error $ex) {
+ return false;
+ } catch (Exception $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_encrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt()
+ * @param string $message
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_aead_chacha20poly1305_ietf_encrypt($message, $additional_data, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt(
+ $message,
+ $additional_data,
+ $nonce,
+ $key
+ );
+ }
+}
+if (!is_callable('sodium_crypto_aead_chacha20poly1305_ietf_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_aead_chacha20poly1305_ietf_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_decrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_decrypt()
+ * @param string $ciphertext
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function sodium_crypto_aead_xchacha20poly1305_ietf_decrypt($ciphertext, $additional_data, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_decrypt(
+ $ciphertext,
+ $additional_data,
+ $nonce,
+ $key,
+ true
+ );
+ } catch (Error $ex) {
+ return false;
+ } catch (Exception $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_encrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt()
+ * @param string $message
+ * @param string $additional_data
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_aead_xchacha20poly1305_ietf_encrypt(
+ $message,
+ $additional_data,
+ $nonce,
+ $key
+ ) {
+ return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_encrypt(
+ $message,
+ $additional_data,
+ $nonce,
+ $key,
+ true
+ );
+ }
+}
+if (!is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_aead_xchacha20poly1305_ietf_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_ietf_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_auth')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_auth()
+ * @param string $message
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_auth($message, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_auth($message, $key);
+ }
+}
+if (!is_callable('sodium_crypto_auth_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_auth_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_auth_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_auth_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_auth_verify')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_auth_verify()
+ * @param string $mac
+ * @param string $message
+ * @param string $key
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_auth_verify($mac, $message, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_auth_verify($mac, $message, $key);
+ }
+}
+if (!is_callable('sodium_crypto_box')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box()
+ * @param string $message
+ * @param string $nonce
+ * @param string $key_pair
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box($message, $nonce, $key_pair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box($message, $nonce, $key_pair);
+ }
+}
+if (!is_callable('sodium_crypto_box_keypair')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_keypair()
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box_keypair()
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_keypair();
+ }
+}
+if (!is_callable('sodium_crypto_box_keypair_from_secretkey_and_publickey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey()
+ * @param string $secret_key
+ * @param string $public_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box_keypair_from_secretkey_and_publickey($secret_key, $public_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey($secret_key, $public_key);
+ }
+}
+if (!is_callable('sodium_crypto_box_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_open()
+ * @param string $ciphertext
+ * @param string $nonce
+ * @param string $key_pair
+ * @return string|bool
+ */
+ function sodium_crypto_box_open($ciphertext, $nonce, $key_pair)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_box_open($ciphertext, $nonce, $key_pair);
+ } catch (Error $ex) {
+ return false;
+ } catch (Exception $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_box_publickey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_publickey()
+ * @param string $key_pair
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box_publickey($key_pair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_publickey($key_pair);
+ }
+}
+if (!is_callable('sodium_crypto_box_publickey_from_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey()
+ * @param string $secret_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box_publickey_from_secretkey($secret_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey($secret_key);
+ }
+}
+if (!is_callable('sodium_crypto_box_seal')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_seal()
+ * @param string $message
+ * @param string $public_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box_seal($message, $public_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_seal($message, $public_key);
+ }
+}
+if (!is_callable('sodium_crypto_box_seal_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_seal_open()
+ * @param string $message
+ * @param string $key_pair
+ * @return string|bool
+ * @throws SodiumException
+ */
+ function sodium_crypto_box_seal_open($message, $key_pair)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_box_seal_open($message, $key_pair);
+ } catch (SodiumException $ex) {
+ if ($ex->getMessage() === 'Argument 2 must be CRYPTO_BOX_KEYPAIRBYTES long.') {
+ throw $ex;
+ }
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_box_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_secretkey()
+ * @param string $key_pair
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box_secretkey($key_pair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_secretkey($key_pair);
+ }
+}
+if (!is_callable('sodium_crypto_box_seed_keypair')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_seed_keypair()
+ * @param string $seed
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_box_seed_keypair($seed)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_seed_keypair($seed);
+ }
+}
+if (!is_callable('sodium_crypto_generichash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash()
+ * @param string $message
+ * @param string|null $key
+ * @param int $length
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_generichash($message, $key = null, $length = 32)
+ {
+ return ParagonIE_Sodium_Compat::crypto_generichash($message, $key, $length);
+ }
+}
+if (!is_callable('sodium_crypto_generichash_final')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash_final()
+ * @param string|null $state
+ * @param int $outputLength
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_generichash_final(&$state, $outputLength = 32)
+ {
+ return ParagonIE_Sodium_Compat::crypto_generichash_final($state, $outputLength);
+ }
+}
+if (!is_callable('sodium_crypto_generichash_init')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash_init()
+ * @param string|null $key
+ * @param int $length
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_generichash_init($key = null, $length = 32)
+ {
+ return ParagonIE_Sodium_Compat::crypto_generichash_init($key, $length);
+ }
+}
+if (!is_callable('sodium_crypto_generichash_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_generichash_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_generichash_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_generichash_update')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash_update()
+ * @param string|null $state
+ * @param string $message
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_generichash_update(&$state, $message = '')
+ {
+ ParagonIE_Sodium_Compat::crypto_generichash_update($state, $message);
+ }
+}
+if (!is_callable('sodium_crypto_kdf_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_kdf_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_kdf_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_kdf_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_kdf_derive_from_key')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_kdf_derive_from_key()
+ * @param int $subkey_length
+ * @param int $subkey_id
+ * @param string $context
+ * @param string $key
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_kdf_derive_from_key($subkey_length, $subkey_id, $context, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kdf_derive_from_key(
+ $subkey_length,
+ $subkey_id,
+ $context,
+ $key
+ );
+ }
+}
+if (!is_callable('sodium_crypto_kx')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_kx()
+ * @param string $my_secret
+ * @param string $their_public
+ * @param string $client_public
+ * @param string $server_public
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_kx($my_secret, $their_public, $client_public, $server_public)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx(
+ $my_secret,
+ $their_public,
+ $client_public,
+ $server_public
+ );
+ }
+}
+if (!is_callable('sodium_crypto_kx_seed_keypair')) {
+ /**
+ * @param string $seed
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_kx_seed_keypair($seed)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx_seed_keypair($seed);
+ }
+}
+if (!is_callable('sodium_crypto_kx_keypair')) {
+ /**
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_kx_keypair()
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx_keypair();
+ }
+}
+if (!is_callable('sodium_crypto_kx_client_session_keys')) {
+ /**
+ * @param string $client_key_pair
+ * @param string $server_key
+ * @return array{0: string, 1: string}
+ * @throws SodiumException
+ */
+ function sodium_crypto_kx_client_session_keys($client_key_pair, $server_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx_client_session_keys($client_key_pair, $server_key);
+ }
+}
+if (!is_callable('sodium_crypto_kx_server_session_keys')) {
+ /**
+ * @param string $server_key_pair
+ * @param string $client_key
+ * @return array{0: string, 1: string}
+ * @throws SodiumException
+ */
+ function sodium_crypto_kx_server_session_keys($server_key_pair, $client_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx_server_session_keys($server_key_pair, $client_key);
+ }
+}
+if (!is_callable('sodium_crypto_kx_secretkey')) {
+ /**
+ * @param string $key_pair
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_kx_secretkey($key_pair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx_secretkey($key_pair);
+ }
+}
+if (!is_callable('sodium_crypto_kx_publickey')) {
+ /**
+ * @param string $key_pair
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_kx_publickey($key_pair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx_publickey($key_pair);
+ }
+}
+if (!is_callable('sodium_crypto_pwhash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash()
+ * @param int $length
+ * @param string $passwd
+ * @param string $salt
+ * @param int $opslimit
+ * @param int $memlimit
+ * @param int|null $algo
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_pwhash($length, $passwd, $salt, $opslimit, $memlimit, $algo = null)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash($length, $passwd, $salt, $opslimit, $memlimit, $algo);
+ }
+}
+if (!is_callable('sodium_crypto_pwhash_str')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_str()
+ * @param string $passwd
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_pwhash_str($passwd, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_str($passwd, $opslimit, $memlimit);
+ }
+}
+if (!is_callable('sodium_crypto_pwhash_str_needs_rehash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_needs_rehash()
+ * @param string $hash
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return bool
+ *
+ * @throws SodiumException
+ */
+ function sodium_crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit);
+ }
+}
+if (!is_callable('sodium_crypto_pwhash_str_verify')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_verify()
+ * @param string $passwd
+ * @param string $hash
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_pwhash_str_verify($passwd, $hash)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_str_verify($passwd, $hash);
+ }
+}
+if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256()
+ * @param int $length
+ * @param string $passwd
+ * @param string $salt
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_pwhash_scryptsalsa208sha256($length, $passwd, $salt, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256(
+ $length,
+ $passwd,
+ $salt,
+ $opslimit,
+ $memlimit
+ );
+ }
+}
+if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256_str')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str()
+ * @param string $passwd
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit);
+ }
+}
+if (!is_callable('sodium_crypto_pwhash_scryptsalsa208sha256_str_verify')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify()
+ * @param string $passwd
+ * @param string $hash
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash);
+ }
+}
+if (!is_callable('sodium_crypto_scalarmult')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_scalarmult()
+ * @param string $n
+ * @param string $p
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_scalarmult($n, $p)
+ {
+ return ParagonIE_Sodium_Compat::crypto_scalarmult($n, $p);
+ }
+}
+if (!is_callable('sodium_crypto_scalarmult_base')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_scalarmult_base()
+ * @param string $n
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_scalarmult_base($n)
+ {
+ return ParagonIE_Sodium_Compat::crypto_scalarmult_base($n);
+ }
+}
+if (!is_callable('sodium_crypto_secretbox')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_secretbox()
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_secretbox($message, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_secretbox($message, $nonce, $key);
+ }
+}
+if (!is_callable('sodium_crypto_secretbox_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_secretbox_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_secretbox_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_secretbox_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_secretbox_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_secretbox_open()
+ * @param string $ciphertext
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function sodium_crypto_secretbox_open($ciphertext, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_secretbox_open($ciphertext, $nonce, $key);
+ } catch (Error $ex) {
+ return false;
+ } catch (Exception $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_init_push')) {
+ /**
+ * @param string $key
+ * @return array<int, string>
+ * @throws SodiumException
+ */
+ function sodium_crypto_secretstream_xchacha20poly1305_init_push($key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_init_push($key);
+ }
+}
+if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_push')) {
+ /**
+ * @param string $state
+ * @param string $message
+ * @param string $additional_data
+ * @param int $tag
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_secretstream_xchacha20poly1305_push(
+ &$state,
+ $message,
+ $additional_data = '',
+ $tag = 0
+ ) {
+ return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_push(
+ $state,
+ $message,
+ $additional_data,
+ $tag
+ );
+ }
+}
+if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_init_pull')) {
+ /**
+ * @param string $header
+ * @param string $key
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_secretstream_xchacha20poly1305_init_pull($header, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_init_pull($header, $key);
+ }
+}
+if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_pull')) {
+ /**
+ * @param string $state
+ * @param string $ciphertext
+ * @param string $additional_data
+ * @return bool|array{0: string, 1: int}
+ * @throws SodiumException
+ */
+ function sodium_crypto_secretstream_xchacha20poly1305_pull(&$state, $ciphertext, $additional_data = '')
+ {
+ return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_pull(
+ $state,
+ $ciphertext,
+ $additional_data
+ );
+ }
+}
+if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_rekey')) {
+ /**
+ * @param string $state
+ * @return void
+ * @throws SodiumException
+ */
+ function sodium_crypto_secretstream_xchacha20poly1305_rekey(&$state)
+ {
+ ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_rekey($state);
+ }
+}
+if (!is_callable('sodium_crypto_secretstream_xchacha20poly1305_keygen')) {
+ /**
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_secretstream_xchacha20poly1305_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_secretstream_xchacha20poly1305_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_shorthash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_shorthash()
+ * @param string $message
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_shorthash($message, $key = '')
+ {
+ return ParagonIE_Sodium_Compat::crypto_shorthash($message, $key);
+ }
+}
+if (!is_callable('sodium_crypto_shorthash_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_shorthash_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_shorthash_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_shorthash_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_sign')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign()
+ * @param string $message
+ * @param string $secret_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign($message, $secret_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign($message, $secret_key);
+ }
+}
+if (!is_callable('sodium_crypto_sign_detached')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_detached()
+ * @param string $message
+ * @param string $secret_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_detached($message, $secret_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_detached($message, $secret_key);
+ }
+}
+if (!is_callable('sodium_crypto_sign_keypair_from_secretkey_and_publickey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_keypair_from_secretkey_and_publickey()
+ * @param string $secret_key
+ * @param string $public_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_keypair_from_secretkey_and_publickey($secret_key, $public_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_keypair_from_secretkey_and_publickey($secret_key, $public_key);
+ }
+}
+if (!is_callable('sodium_crypto_sign_keypair')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_keypair()
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_keypair()
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_keypair();
+ }
+}
+if (!is_callable('sodium_crypto_sign_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_open()
+ * @param string $signedMessage
+ * @param string $public_key
+ * @return string|bool
+ */
+ function sodium_crypto_sign_open($signedMessage, $public_key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_sign_open($signedMessage, $public_key);
+ } catch (Error $ex) {
+ return false;
+ } catch (Exception $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('sodium_crypto_sign_publickey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_publickey()
+ * @param string $key_pair
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_publickey($key_pair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_publickey($key_pair);
+ }
+}
+if (!is_callable('sodium_crypto_sign_publickey_from_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey()
+ * @param string $secret_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_publickey_from_secretkey($secret_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey($secret_key);
+ }
+}
+if (!is_callable('sodium_crypto_sign_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_secretkey()
+ * @param string $key_pair
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_secretkey($key_pair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_secretkey($key_pair);
+ }
+}
+if (!is_callable('sodium_crypto_sign_seed_keypair')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_seed_keypair()
+ * @param string $seed
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_seed_keypair($seed)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_seed_keypair($seed);
+ }
+}
+if (!is_callable('sodium_crypto_sign_verify_detached')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_verify_detached()
+ * @param string $signature
+ * @param string $message
+ * @param string $public_key
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_verify_detached($signature, $message, $public_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_verify_detached($signature, $message, $public_key);
+ }
+}
+if (!is_callable('sodium_crypto_sign_ed25519_pk_to_curve25519')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519()
+ * @param string $public_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_ed25519_pk_to_curve25519($public_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519($public_key);
+ }
+}
+if (!is_callable('sodium_crypto_sign_ed25519_sk_to_curve25519')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519()
+ * @param string $secret_key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_sign_ed25519_sk_to_curve25519($secret_key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519($secret_key);
+ }
+}
+if (!is_callable('sodium_crypto_stream')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream()
+ * @param int $length
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_stream($length, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream($length, $nonce, $key);
+ }
+}
+if (!is_callable('sodium_crypto_stream_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_stream_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_stream_xor')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream_xor()
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_stream_xor($message, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream_xor($message, $nonce, $key);
+ }
+}
+require_once dirname(__FILE__) . '/stream-xchacha20.php';
+if (!is_callable('sodium_hex2bin')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::hex2bin()
+ * @param string $string
+ * @param string $ignore
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_hex2bin($string, $ignore = '')
+ {
+ return ParagonIE_Sodium_Compat::hex2bin($string, $ignore);
+ }
+}
+if (!is_callable('sodium_increment')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::increment()
+ * @param string $string
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_increment(&$string)
+ {
+ ParagonIE_Sodium_Compat::increment($string);
+ }
+}
+if (!is_callable('sodium_library_version_major')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::library_version_major()
+ * @return int
+ */
+ function sodium_library_version_major()
+ {
+ return ParagonIE_Sodium_Compat::library_version_major();
+ }
+}
+if (!is_callable('sodium_library_version_minor')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::library_version_minor()
+ * @return int
+ */
+ function sodium_library_version_minor()
+ {
+ return ParagonIE_Sodium_Compat::library_version_minor();
+ }
+}
+if (!is_callable('sodium_version_string')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::version_string()
+ * @return string
+ */
+ function sodium_version_string()
+ {
+ return ParagonIE_Sodium_Compat::version_string();
+ }
+}
+if (!is_callable('sodium_memcmp')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::memcmp()
+ * @param string $string1
+ * @param string $string2
+ * @return int
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_memcmp($string1, $string2)
+ {
+ return ParagonIE_Sodium_Compat::memcmp($string1, $string2);
+ }
+}
+if (!is_callable('sodium_memzero')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::memzero()
+ * @param string $string
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ *
+ * @psalm-suppress ReferenceConstraintViolation
+ */
+ function sodium_memzero(&$string)
+ {
+ ParagonIE_Sodium_Compat::memzero($string);
+ }
+}
+if (!is_callable('sodium_pad')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::pad()
+ * @param string $unpadded
+ * @param int $block_size
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_pad($unpadded, $block_size)
+ {
+ return ParagonIE_Sodium_Compat::pad($unpadded, $block_size, true);
+ }
+}
+if (!is_callable('sodium_unpad')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::pad()
+ * @param string $padded
+ * @param int $block_size
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_unpad($padded, $block_size)
+ {
+ return ParagonIE_Sodium_Compat::unpad($padded, $block_size, true);
+ }
+}
+if (!is_callable('sodium_randombytes_buf')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::randombytes_buf()
+ * @param int $amount
+ * @return string
+ * @throws Exception
+ */
+ function sodium_randombytes_buf($amount)
+ {
+ return ParagonIE_Sodium_Compat::randombytes_buf($amount);
+ }
+}
+
+if (!is_callable('sodium_randombytes_uniform')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::randombytes_uniform()
+ * @param int $upperLimit
+ * @return int
+ * @throws Exception
+ */
+ function sodium_randombytes_uniform($upperLimit)
+ {
+ return ParagonIE_Sodium_Compat::randombytes_uniform($upperLimit);
+ }
+}
+
+if (!is_callable('sodium_randombytes_random16')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::randombytes_random16()
+ * @return int
+ * @throws Exception
+ */
+ function sodium_randombytes_random16()
+ {
+ return ParagonIE_Sodium_Compat::randombytes_random16();
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/lib/php72compat_const.php b/vendor/paragonie/sodium_compat/lib/php72compat_const.php
index 0a076ca..baa0f1e 100644
--- a/vendor/paragonie/sodium_compat/lib/php72compat_const.php
+++ b/vendor/paragonie/sodium_compat/lib/php72compat_const.php
@@ -1,92 +1,92 @@
-<?php
-
-const SODIUM_LIBRARY_MAJOR_VERSION = 9;
-const SODIUM_LIBRARY_MINOR_VERSION = 1;
-const SODIUM_LIBRARY_VERSION = '1.0.8';
-
-const SODIUM_BASE64_VARIANT_ORIGINAL = 1;
-const SODIUM_BASE64_VARIANT_ORIGINAL_NO_PADDING = 3;
-const SODIUM_BASE64_VARIANT_URLSAFE = 5;
-const SODIUM_BASE64_VARIANT_URLSAFE_NO_PADDING = 7;
-const SODIUM_CRYPTO_AEAD_AES256GCM_KEYBYTES = 32;
-const SODIUM_CRYPTO_AEAD_AES256GCM_NSECBYTES = 0;
-const SODIUM_CRYPTO_AEAD_AES256GCM_NPUBBYTES = 12;
-const SODIUM_CRYPTO_AEAD_AES256GCM_ABYTES = 16;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES = 32;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES = 0;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES = 8;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_ABYTES = 16;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES = 32;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES = 0;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES = 12;
-const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES = 16;
-const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES = 32;
-const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NSECBYTES = 0;
-const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES = 24;
-const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES = 16;
-const SODIUM_CRYPTO_AUTH_BYTES = 32;
-const SODIUM_CRYPTO_AUTH_KEYBYTES = 32;
-const SODIUM_CRYPTO_BOX_SEALBYTES = 16;
-const SODIUM_CRYPTO_BOX_SECRETKEYBYTES = 32;
-const SODIUM_CRYPTO_BOX_PUBLICKEYBYTES = 32;
-const SODIUM_CRYPTO_BOX_KEYPAIRBYTES = 64;
-const SODIUM_CRYPTO_BOX_MACBYTES = 16;
-const SODIUM_CRYPTO_BOX_NONCEBYTES = 24;
-const SODIUM_CRYPTO_BOX_SEEDBYTES = 32;
-const SODIUM_CRYPTO_KDF_BYTES_MIN = 16;
-const SODIUM_CRYPTO_KDF_BYTES_MAX = 64;
-const SODIUM_CRYPTO_KDF_CONTEXTBYTES = 8;
-const SODIUM_CRYPTO_KDF_KEYBYTES = 32;
-const SODIUM_CRYPTO_KX_BYTES = 32;
-const SODIUM_CRYPTO_KX_PRIMITIVE = 'x25519blake2b';
-const SODIUM_CRYPTO_KX_SEEDBYTES = 32;
-const SODIUM_CRYPTO_KX_KEYPAIRBYTES = 64;
-const SODIUM_CRYPTO_KX_PUBLICKEYBYTES = 32;
-const SODIUM_CRYPTO_KX_SECRETKEYBYTES = 32;
-const SODIUM_CRYPTO_KX_SESSIONKEYBYTES = 32;
-const SODIUM_CRYPTO_GENERICHASH_BYTES = 32;
-const SODIUM_CRYPTO_GENERICHASH_BYTES_MIN = 16;
-const SODIUM_CRYPTO_GENERICHASH_BYTES_MAX = 64;
-const SODIUM_CRYPTO_GENERICHASH_KEYBYTES = 32;
-const SODIUM_CRYPTO_GENERICHASH_KEYBYTES_MIN = 16;
-const SODIUM_CRYPTO_GENERICHASH_KEYBYTES_MAX = 64;
-const SODIUM_CRYPTO_PWHASH_SALTBYTES = 16;
-const SODIUM_CRYPTO_PWHASH_STRPREFIX = '$argon2id$';
-const SODIUM_CRYPTO_PWHASH_ALG_ARGON2I13 = 1;
-const SODIUM_CRYPTO_PWHASH_ALG_ARGON2ID13 = 2;
-const SODIUM_CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE = 33554432;
-const SODIUM_CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE = 4;
-const SODIUM_CRYPTO_PWHASH_MEMLIMIT_MODERATE = 134217728;
-const SODIUM_CRYPTO_PWHASH_OPSLIMIT_MODERATE = 6;
-const SODIUM_CRYPTO_PWHASH_MEMLIMIT_SENSITIVE = 536870912;
-const SODIUM_CRYPTO_PWHASH_OPSLIMIT_SENSITIVE = 8;
-const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES = 32;
-const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX = '$7$';
-const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE = 534288;
-const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE = 16777216;
-const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE = 33554432;
-const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE = 1073741824;
-const SODIUM_CRYPTO_SCALARMULT_BYTES = 32;
-const SODIUM_CRYPTO_SCALARMULT_SCALARBYTES = 32;
-const SODIUM_CRYPTO_SHORTHASH_BYTES = 8;
-const SODIUM_CRYPTO_SHORTHASH_KEYBYTES = 16;
-const SODIUM_CRYPTO_SECRETBOX_KEYBYTES = 32;
-const SODIUM_CRYPTO_SECRETBOX_MACBYTES = 16;
-const SODIUM_CRYPTO_SECRETBOX_NONCEBYTES = 24;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES = 17;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES = 24;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES = 32;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PUSH = 0;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PULL = 1;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY = 2;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_FINAL = 3;
-const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX = 0x3fffffff80;
-const SODIUM_CRYPTO_SIGN_BYTES = 64;
-const SODIUM_CRYPTO_SIGN_SEEDBYTES = 32;
-const SODIUM_CRYPTO_SIGN_PUBLICKEYBYTES = 32;
-const SODIUM_CRYPTO_SIGN_SECRETKEYBYTES = 64;
-const SODIUM_CRYPTO_SIGN_KEYPAIRBYTES = 96;
-const SODIUM_CRYPTO_STREAM_KEYBYTES = 32;
-const SODIUM_CRYPTO_STREAM_NONCEBYTES = 24;
-const SODIUM_CRYPTO_STREAM_XCHACHA20_KEYBYTES = 32;
-const SODIUM_CRYPTO_STREAM_XCHACHA20_NONCEBYTES = 24;
+<?php
+
+const SODIUM_LIBRARY_MAJOR_VERSION = 9;
+const SODIUM_LIBRARY_MINOR_VERSION = 1;
+const SODIUM_LIBRARY_VERSION = '1.0.8';
+
+const SODIUM_BASE64_VARIANT_ORIGINAL = 1;
+const SODIUM_BASE64_VARIANT_ORIGINAL_NO_PADDING = 3;
+const SODIUM_BASE64_VARIANT_URLSAFE = 5;
+const SODIUM_BASE64_VARIANT_URLSAFE_NO_PADDING = 7;
+const SODIUM_CRYPTO_AEAD_AES256GCM_KEYBYTES = 32;
+const SODIUM_CRYPTO_AEAD_AES256GCM_NSECBYTES = 0;
+const SODIUM_CRYPTO_AEAD_AES256GCM_NPUBBYTES = 12;
+const SODIUM_CRYPTO_AEAD_AES256GCM_ABYTES = 16;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES = 32;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES = 0;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES = 8;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_ABYTES = 16;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES = 32;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES = 0;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES = 12;
+const SODIUM_CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES = 16;
+const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES = 32;
+const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NSECBYTES = 0;
+const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES = 24;
+const SODIUM_CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES = 16;
+const SODIUM_CRYPTO_AUTH_BYTES = 32;
+const SODIUM_CRYPTO_AUTH_KEYBYTES = 32;
+const SODIUM_CRYPTO_BOX_SEALBYTES = 16;
+const SODIUM_CRYPTO_BOX_SECRETKEYBYTES = 32;
+const SODIUM_CRYPTO_BOX_PUBLICKEYBYTES = 32;
+const SODIUM_CRYPTO_BOX_KEYPAIRBYTES = 64;
+const SODIUM_CRYPTO_BOX_MACBYTES = 16;
+const SODIUM_CRYPTO_BOX_NONCEBYTES = 24;
+const SODIUM_CRYPTO_BOX_SEEDBYTES = 32;
+const SODIUM_CRYPTO_KDF_BYTES_MIN = 16;
+const SODIUM_CRYPTO_KDF_BYTES_MAX = 64;
+const SODIUM_CRYPTO_KDF_CONTEXTBYTES = 8;
+const SODIUM_CRYPTO_KDF_KEYBYTES = 32;
+const SODIUM_CRYPTO_KX_BYTES = 32;
+const SODIUM_CRYPTO_KX_PRIMITIVE = 'x25519blake2b';
+const SODIUM_CRYPTO_KX_SEEDBYTES = 32;
+const SODIUM_CRYPTO_KX_KEYPAIRBYTES = 64;
+const SODIUM_CRYPTO_KX_PUBLICKEYBYTES = 32;
+const SODIUM_CRYPTO_KX_SECRETKEYBYTES = 32;
+const SODIUM_CRYPTO_KX_SESSIONKEYBYTES = 32;
+const SODIUM_CRYPTO_GENERICHASH_BYTES = 32;
+const SODIUM_CRYPTO_GENERICHASH_BYTES_MIN = 16;
+const SODIUM_CRYPTO_GENERICHASH_BYTES_MAX = 64;
+const SODIUM_CRYPTO_GENERICHASH_KEYBYTES = 32;
+const SODIUM_CRYPTO_GENERICHASH_KEYBYTES_MIN = 16;
+const SODIUM_CRYPTO_GENERICHASH_KEYBYTES_MAX = 64;
+const SODIUM_CRYPTO_PWHASH_SALTBYTES = 16;
+const SODIUM_CRYPTO_PWHASH_STRPREFIX = '$argon2id$';
+const SODIUM_CRYPTO_PWHASH_ALG_ARGON2I13 = 1;
+const SODIUM_CRYPTO_PWHASH_ALG_ARGON2ID13 = 2;
+const SODIUM_CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE = 33554432;
+const SODIUM_CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE = 4;
+const SODIUM_CRYPTO_PWHASH_MEMLIMIT_MODERATE = 134217728;
+const SODIUM_CRYPTO_PWHASH_OPSLIMIT_MODERATE = 6;
+const SODIUM_CRYPTO_PWHASH_MEMLIMIT_SENSITIVE = 536870912;
+const SODIUM_CRYPTO_PWHASH_OPSLIMIT_SENSITIVE = 8;
+const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES = 32;
+const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX = '$7$';
+const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE = 534288;
+const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE = 16777216;
+const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE = 33554432;
+const SODIUM_CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE = 1073741824;
+const SODIUM_CRYPTO_SCALARMULT_BYTES = 32;
+const SODIUM_CRYPTO_SCALARMULT_SCALARBYTES = 32;
+const SODIUM_CRYPTO_SHORTHASH_BYTES = 8;
+const SODIUM_CRYPTO_SHORTHASH_KEYBYTES = 16;
+const SODIUM_CRYPTO_SECRETBOX_KEYBYTES = 32;
+const SODIUM_CRYPTO_SECRETBOX_MACBYTES = 16;
+const SODIUM_CRYPTO_SECRETBOX_NONCEBYTES = 24;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES = 17;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES = 24;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES = 32;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PUSH = 0;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PULL = 1;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY = 2;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_FINAL = 3;
+const SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX = 0x3fffffff80;
+const SODIUM_CRYPTO_SIGN_BYTES = 64;
+const SODIUM_CRYPTO_SIGN_SEEDBYTES = 32;
+const SODIUM_CRYPTO_SIGN_PUBLICKEYBYTES = 32;
+const SODIUM_CRYPTO_SIGN_SECRETKEYBYTES = 64;
+const SODIUM_CRYPTO_SIGN_KEYPAIRBYTES = 96;
+const SODIUM_CRYPTO_STREAM_KEYBYTES = 32;
+const SODIUM_CRYPTO_STREAM_NONCEBYTES = 24;
+const SODIUM_CRYPTO_STREAM_XCHACHA20_KEYBYTES = 32;
+const SODIUM_CRYPTO_STREAM_XCHACHA20_NONCEBYTES = 24;
diff --git a/vendor/paragonie/sodium_compat/lib/ristretto255.php b/vendor/paragonie/sodium_compat/lib/ristretto255.php
index a7522ea..5a0c6dc 100644
--- a/vendor/paragonie/sodium_compat/lib/ristretto255.php
+++ b/vendor/paragonie/sodium_compat/lib/ristretto255.php
@@ -1,239 +1,239 @@
-<?php
-
-if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_BYTES')) {
- define(
- 'SODIUM_CRYPTO_CORE_RISTRETTO255_BYTES',
- ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_BYTES
- );
- define('SODIUM_COMPAT_POLYFILLED_RISTRETTO255', true);
-}
-if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_HASHBYTES')) {
- define(
- 'SODIUM_CRYPTO_CORE_RISTRETTO255_HASHBYTES',
- ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_HASHBYTES
- );
-}
-if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_SCALARBYTES')) {
- define(
- 'SODIUM_CRYPTO_CORE_RISTRETTO255_SCALARBYTES',
- ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_SCALARBYTES
- );
-}
-if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES')) {
- define(
- 'SODIUM_CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES',
- ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES
- );
-}
-if (!defined('SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES')) {
- define(
- 'SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES',
- ParagonIE_Sodium_Compat::CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES
- );
-}
-if (!defined('SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_BYTES')) {
- define(
- 'SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_BYTES',
- ParagonIE_Sodium_Compat::CRYPTO_SCALARMULT_RISTRETTO255_BYTES
- );
-}
-
-if (!is_callable('sodium_crypto_core_ristretto255_add')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_add()
- *
- * @param string $p
- * @param string $q
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_add($p, $q)
- {
- return ParagonIE_Sodium_Compat::ristretto255_add($p, $q, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_from_hash')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_from_hash()
- *
- * @param string $r
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_from_hash($r)
- {
- return ParagonIE_Sodium_Compat::ristretto255_from_hash($r, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_is_valid_point')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_is_valid_point()
- *
- * @param string $p
- * @return bool
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_is_valid_point($p)
- {
- return ParagonIE_Sodium_Compat::ristretto255_is_valid_point($p, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_random')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_random()
- *
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_random()
- {
- return ParagonIE_Sodium_Compat::ristretto255_random(true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_add')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_add()
- *
- * @param string $p
- * @param string $q
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_add($p, $q)
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_add($p, $q, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_complement')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_complement()
- *
- * @param string $p
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_complement($p)
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_complement($p, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_invert')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_invert()
- *
- * @param string $p
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_invert($p)
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_invert($p, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_mul')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_mul()
- *
- * @param string $p
- * @param string $q
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_mul($p, $q)
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_mul($p, $q, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_negate')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_negate()
- *
- * @param string $p
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_negate($p)
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_negate($p, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_random')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_random()
- *
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_random()
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_random(true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_reduce')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_reduce()
- *
- * @param string $p
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_reduce($p)
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_reduce($p, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_scalar_sub')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_scalar_sub()
- *
- * @param string $p
- * @param string $q
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_scalar_sub($p, $q)
- {
- return ParagonIE_Sodium_Compat::ristretto255_scalar_sub($p, $q, true);
- }
-}
-if (!is_callable('sodium_crypto_core_ristretto255_sub')) {
- /**
- * @see ParagonIE_Sodium_Compat::ristretto255_sub()
- *
- * @param string $p
- * @param string $q
- * @return string
- * @throws SodiumException
- */
- function sodium_crypto_core_ristretto255_sub($p, $q)
- {
- return ParagonIE_Sodium_Compat::ristretto255_sub($p, $q, true);
- }
-}
-if (!is_callable('sodium_crypto_scalarmult_ristretto255')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_scalarmult_ristretto255()
- * @param string $n
- * @param string $p
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_scalarmult_ristretto255($n, $p)
- {
- return ParagonIE_Sodium_Compat::scalarmult_ristretto255($n, $p, true);
- }
-}
-if (!is_callable('sodium_crypto_scalarmult_ristretto255_base')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_scalarmult_ristretto255_base()
- * @param string $n
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_scalarmult_ristretto255_base($n)
- {
- return ParagonIE_Sodium_Compat::scalarmult_ristretto255_base($n, true);
- }
+<?php
+
+if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_BYTES')) {
+ define(
+ 'SODIUM_CRYPTO_CORE_RISTRETTO255_BYTES',
+ ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_BYTES
+ );
+ define('SODIUM_COMPAT_POLYFILLED_RISTRETTO255', true);
+}
+if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_HASHBYTES')) {
+ define(
+ 'SODIUM_CRYPTO_CORE_RISTRETTO255_HASHBYTES',
+ ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_HASHBYTES
+ );
+}
+if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_SCALARBYTES')) {
+ define(
+ 'SODIUM_CRYPTO_CORE_RISTRETTO255_SCALARBYTES',
+ ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_SCALARBYTES
+ );
+}
+if (!defined('SODIUM_CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES')) {
+ define(
+ 'SODIUM_CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES',
+ ParagonIE_Sodium_Compat::CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES
+ );
+}
+if (!defined('SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES')) {
+ define(
+ 'SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES',
+ ParagonIE_Sodium_Compat::CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES
+ );
+}
+if (!defined('SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_BYTES')) {
+ define(
+ 'SODIUM_CRYPTO_SCALARMULT_RISTRETTO255_BYTES',
+ ParagonIE_Sodium_Compat::CRYPTO_SCALARMULT_RISTRETTO255_BYTES
+ );
+}
+
+if (!is_callable('sodium_crypto_core_ristretto255_add')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_add()
+ *
+ * @param string $p
+ * @param string $q
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_add($p, $q)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_add($p, $q, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_from_hash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_from_hash()
+ *
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_from_hash($s)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_from_hash($s, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_is_valid_point')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_is_valid_point()
+ *
+ * @param string $s
+ * @return bool
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_is_valid_point($s)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_is_valid_point($s, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_random')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_random()
+ *
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_random()
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_random(true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_add')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_add()
+ *
+ * @param string $x
+ * @param string $y
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_add($x, $y)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_add($x, $y, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_complement')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_complement()
+ *
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_complement($s)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_complement($s, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_invert')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_invert()
+ *
+ * @param string $p
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_invert($p)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_invert($p, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_mul')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_mul()
+ *
+ * @param string $x
+ * @param string $y
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_mul($x, $y)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_mul($x, $y, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_negate')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_negate()
+ *
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_negate($s)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_negate($s, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_random')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_random()
+ *
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_random()
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_random(true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_reduce')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_reduce()
+ *
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_reduce($s)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_reduce($s, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_scalar_sub')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_scalar_sub()
+ *
+ * @param string $x
+ * @param string $y
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_scalar_sub($x, $y)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_scalar_sub($x, $y, true);
+ }
+}
+if (!is_callable('sodium_crypto_core_ristretto255_sub')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::ristretto255_sub()
+ *
+ * @param string $p
+ * @param string $q
+ * @return string
+ * @throws SodiumException
+ */
+ function sodium_crypto_core_ristretto255_sub($p, $q)
+ {
+ return ParagonIE_Sodium_Compat::ristretto255_sub($p, $q, true);
+ }
+}
+if (!is_callable('sodium_crypto_scalarmult_ristretto255')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_scalarmult_ristretto255()
+ * @param string $n
+ * @param string $p
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_scalarmult_ristretto255($n, $p)
+ {
+ return ParagonIE_Sodium_Compat::scalarmult_ristretto255($n, $p, true);
+ }
+}
+if (!is_callable('sodium_crypto_scalarmult_ristretto255_base')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_scalarmult_ristretto255_base()
+ * @param string $n
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_scalarmult_ristretto255_base($n)
+ {
+ return ParagonIE_Sodium_Compat::scalarmult_ristretto255_base($n, true);
+ }
} \ No newline at end of file
diff --git a/vendor/paragonie/sodium_compat/lib/sodium_compat.php b/vendor/paragonie/sodium_compat/lib/sodium_compat.php
index 80495be..04f4bc7 100644
--- a/vendor/paragonie/sodium_compat/lib/sodium_compat.php
+++ b/vendor/paragonie/sodium_compat/lib/sodium_compat.php
@@ -1,827 +1,831 @@
-<?php
-namespace Sodium;
-
-require_once dirname(dirname(__FILE__)) . '/autoload.php';
-
-use ParagonIE_Sodium_Compat;
-
-/**
- * This file will monkey patch the pure-PHP implementation in place of the
- * PECL functions, but only if they do not already exist.
- *
- * Thus, the functions just proxy to the appropriate ParagonIE_Sodium_Compat
- * method.
- */
-if (!is_callable('\\Sodium\\bin2hex')) {
- /**
- * @see ParagonIE_Sodium_Compat::bin2hex()
- * @param string $string
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function bin2hex($string)
- {
- return ParagonIE_Sodium_Compat::bin2hex($string);
- }
-}
-if (!is_callable('\\Sodium\\compare')) {
- /**
- * @see ParagonIE_Sodium_Compat::compare()
- * @param string $a
- * @param string $b
- * @return int
- * @throws \SodiumException
- * @throws \TypeError
- */
- function compare($a, $b)
- {
- return ParagonIE_Sodium_Compat::compare($a, $b);
- }
-}
-if (!is_callable('\\Sodium\\crypto_aead_aes256gcm_decrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key);
- } catch (\TypeError $ex) {
- return false;
- } catch (\SodiumException $ex) {
- return false;
- }
- }
-}
-if (!is_callable('\\Sodium\\crypto_aead_aes256gcm_encrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_aead_aes256gcm_is_available')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available()
- * @return bool
- */
- function crypto_aead_aes256gcm_is_available()
- {
- return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available();
- }
-}
-if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_decrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key);
- } catch (\TypeError $ex) {
- return false;
- } catch (\SodiumException $ex) {
- return false;
- }
- }
-}
-if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_encrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_ietf_decrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key);
- } catch (\TypeError $ex) {
- return false;
- } catch (\SodiumException $ex) {
- return false;
- }
- }
-}
-if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_ietf_encrypt')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt()
- * @param string $message
- * @param string $assocData
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_auth')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_auth()
- * @param string $message
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_auth($message, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_auth($message, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_auth_verify')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_auth_verify()
- * @param string $mac
- * @param string $message
- * @param string $key
- * @return bool
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_auth_verify($mac, $message, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_auth_verify($mac, $message, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_box')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box()
- * @param string $message
- * @param string $nonce
- * @param string $kp
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_box($message, $nonce, $kp)
- {
- return ParagonIE_Sodium_Compat::crypto_box($message, $nonce, $kp);
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_keypair')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_keypair()
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_box_keypair()
- {
- return ParagonIE_Sodium_Compat::crypto_box_keypair();
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_keypair_from_secretkey_and_publickey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey()
- * @param string $sk
- * @param string $pk
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_box_keypair_from_secretkey_and_publickey($sk, $pk)
- {
- return ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey($sk, $pk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_open()
- * @param string $message
- * @param string $nonce
- * @param string $kp
- * @return string|bool
- */
- function crypto_box_open($message, $nonce, $kp)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_box_open($message, $nonce, $kp);
- } catch (\TypeError $ex) {
- return false;
- } catch (\SodiumException $ex) {
- return false;
- }
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_publickey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_publickey()
- * @param string $keypair
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_box_publickey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_box_publickey($keypair);
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_publickey_from_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey()
- * @param string $sk
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_box_publickey_from_secretkey($sk)
- {
- return ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey($sk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_seal')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_seal_open()
- * @param string $message
- * @param string $publicKey
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_box_seal($message, $publicKey)
- {
- return ParagonIE_Sodium_Compat::crypto_box_seal($message, $publicKey);
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_seal_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_seal_open()
- * @param string $message
- * @param string $kp
- * @return string|bool
- */
- function crypto_box_seal_open($message, $kp)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_box_seal_open($message, $kp);
- } catch (\TypeError $ex) {
- return false;
- } catch (\SodiumException $ex) {
- return false;
- }
- }
-}
-if (!is_callable('\\Sodium\\crypto_box_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_box_secretkey()
- * @param string $keypair
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_box_secretkey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_box_secretkey($keypair);
- }
-}
-if (!is_callable('\\Sodium\\crypto_generichash')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash()
- * @param string $message
- * @param string|null $key
- * @param int $outLen
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_generichash($message, $key = null, $outLen = 32)
- {
- return ParagonIE_Sodium_Compat::crypto_generichash($message, $key, $outLen);
- }
-}
-if (!is_callable('\\Sodium\\crypto_generichash_final')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash_final()
- * @param string|null $ctx
- * @param int $outputLength
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_generichash_final(&$ctx, $outputLength = 32)
- {
- return ParagonIE_Sodium_Compat::crypto_generichash_final($ctx, $outputLength);
- }
-}
-if (!is_callable('\\Sodium\\crypto_generichash_init')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash_init()
- * @param string|null $key
- * @param int $outLen
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_generichash_init($key = null, $outLen = 32)
- {
- return ParagonIE_Sodium_Compat::crypto_generichash_init($key, $outLen);
- }
-}
-if (!is_callable('\\Sodium\\crypto_generichash_update')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_generichash_update()
- * @param string|null $ctx
- * @param string $message
- * @return void
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_generichash_update(&$ctx, $message = '')
- {
- ParagonIE_Sodium_Compat::crypto_generichash_update($ctx, $message);
- }
-}
-if (!is_callable('\\Sodium\\crypto_kx')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_kx()
- * @param string $my_secret
- * @param string $their_public
- * @param string $client_public
- * @param string $server_public
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_kx($my_secret, $their_public, $client_public, $server_public)
- {
- return ParagonIE_Sodium_Compat::crypto_kx(
- $my_secret,
- $their_public,
- $client_public,
- $server_public,
- true
- );
- }
-}
-if (!is_callable('\\Sodium\\crypto_pwhash')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash()
- * @param int $outlen
- * @param string $passwd
- * @param string $salt
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit);
- }
-}
-if (!is_callable('\\Sodium\\crypto_pwhash_str')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_str()
- * @param string $passwd
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_pwhash_str($passwd, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_str($passwd, $opslimit, $memlimit);
- }
-}
-if (!is_callable('\\Sodium\\crypto_pwhash_str_verify')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_verify()
- * @param string $passwd
- * @param string $hash
- * @return bool
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_pwhash_str_verify($passwd, $hash)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_str_verify($passwd, $hash);
- }
-}
-if (!is_callable('\\Sodium\\crypto_pwhash_scryptsalsa208sha256')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256()
- * @param int $outlen
- * @param string $passwd
- * @param string $salt
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit);
- }
-}
-if (!is_callable('\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str()
- * @param string $passwd
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit);
- }
-}
-if (!is_callable('\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str_verify')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify()
- * @param string $passwd
- * @param string $hash
- * @return bool
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash)
- {
- return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash);
- }
-}
-if (!is_callable('\\Sodium\\crypto_scalarmult')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_scalarmult()
- * @param string $n
- * @param string $p
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_scalarmult($n, $p)
- {
- return ParagonIE_Sodium_Compat::crypto_scalarmult($n, $p);
- }
-}
-if (!is_callable('\\Sodium\\crypto_scalarmult_base')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_scalarmult_base()
- * @param string $n
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_scalarmult_base($n)
- {
- return ParagonIE_Sodium_Compat::crypto_scalarmult_base($n);
- }
-}
-if (!is_callable('\\Sodium\\crypto_secretbox')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_secretbox()
- * @param string $message
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_secretbox($message, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_secretbox($message, $nonce, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_secretbox_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_secretbox_open()
- * @param string $message
- * @param string $nonce
- * @param string $key
- * @return string|bool
- */
- function crypto_secretbox_open($message, $nonce, $key)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_secretbox_open($message, $nonce, $key);
- } catch (\TypeError $ex) {
- return false;
- } catch (\SodiumException $ex) {
- return false;
- }
- }
-}
-if (!is_callable('\\Sodium\\crypto_shorthash')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_shorthash()
- * @param string $message
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_shorthash($message, $key = '')
- {
- return ParagonIE_Sodium_Compat::crypto_shorthash($message, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign()
- * @param string $message
- * @param string $sk
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign($message, $sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign($message, $sk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_detached')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_detached()
- * @param string $message
- * @param string $sk
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_detached($message, $sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_detached($message, $sk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_keypair')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_keypair()
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_keypair()
- {
- return ParagonIE_Sodium_Compat::crypto_sign_keypair();
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_open')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_open()
- * @param string $signedMessage
- * @param string $pk
- * @return string|bool
- */
- function crypto_sign_open($signedMessage, $pk)
- {
- try {
- return ParagonIE_Sodium_Compat::crypto_sign_open($signedMessage, $pk);
- } catch (\TypeError $ex) {
- return false;
- } catch (\SodiumException $ex) {
- return false;
- }
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_publickey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_publickey()
- * @param string $keypair
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_publickey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_publickey($keypair);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_publickey_from_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey()
- * @param string $sk
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_publickey_from_secretkey($sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey($sk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_secretkey')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_secretkey()
- * @param string $keypair
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_secretkey($keypair)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_secretkey($keypair);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_seed_keypair')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_seed_keypair()
- * @param string $seed
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_seed_keypair($seed)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_seed_keypair($seed);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_verify_detached')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_verify_detached()
- * @param string $signature
- * @param string $message
- * @param string $pk
- * @return bool
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_verify_detached($signature, $message, $pk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_verify_detached($signature, $message, $pk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_ed25519_pk_to_curve25519')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519()
- * @param string $pk
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_ed25519_pk_to_curve25519($pk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519($pk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_sign_ed25519_sk_to_curve25519')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519()
- * @param string $sk
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_sign_ed25519_sk_to_curve25519($sk)
- {
- return ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519($sk);
- }
-}
-if (!is_callable('\\Sodium\\crypto_stream')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream()
- * @param int $len
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_stream($len, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_stream($len, $nonce, $key);
- }
-}
-if (!is_callable('\\Sodium\\crypto_stream_xor')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream_xor()
- * @param string $message
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function crypto_stream_xor($message, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_stream_xor($message, $nonce, $key);
- }
-}
-if (!is_callable('\\Sodium\\hex2bin')) {
- /**
- * @see ParagonIE_Sodium_Compat::hex2bin()
- * @param string $string
- * @return string
- * @throws \SodiumException
- * @throws \TypeError
- */
- function hex2bin($string)
- {
- return ParagonIE_Sodium_Compat::hex2bin($string);
- }
-}
-if (!is_callable('\\Sodium\\memcmp')) {
- /**
- * @see ParagonIE_Sodium_Compat::memcmp()
- * @param string $a
- * @param string $b
- * @return int
- * @throws \SodiumException
- * @throws \TypeError
- */
- function memcmp($a, $b)
- {
- return ParagonIE_Sodium_Compat::memcmp($a, $b);
- }
-}
-if (!is_callable('\\Sodium\\memzero')) {
- /**
- * @see ParagonIE_Sodium_Compat::memzero()
- * @param string $str
- * @return void
- * @throws \SodiumException
- * @throws \TypeError
- */
- function memzero(&$str)
- {
- ParagonIE_Sodium_Compat::memzero($str);
- }
-}
-if (!is_callable('\\Sodium\\randombytes_buf')) {
- /**
- * @see ParagonIE_Sodium_Compat::randombytes_buf()
- * @param int $amount
- * @return string
- * @throws \TypeError
- */
- function randombytes_buf($amount)
- {
- return ParagonIE_Sodium_Compat::randombytes_buf($amount);
- }
-}
-
-if (!is_callable('\\Sodium\\randombytes_uniform')) {
- /**
- * @see ParagonIE_Sodium_Compat::randombytes_uniform()
- * @param int $upperLimit
- * @return int
- * @throws \SodiumException
- * @throws \Error
- */
- function randombytes_uniform($upperLimit)
- {
- return ParagonIE_Sodium_Compat::randombytes_uniform($upperLimit);
- }
-}
-
-if (!is_callable('\\Sodium\\randombytes_random16')) {
- /**
- * @see ParagonIE_Sodium_Compat::randombytes_random16()
- * @return int
- */
- function randombytes_random16()
- {
- return ParagonIE_Sodium_Compat::randombytes_random16();
- }
-}
-
-if (!defined('\\Sodium\\CRYPTO_AUTH_BYTES')) {
- require_once dirname(__FILE__) . '/constants.php';
-}
+<?php
+namespace Sodium;
+
+require_once dirname(dirname(__FILE__)) . '/autoload.php';
+
+use ParagonIE_Sodium_Compat;
+
+/**
+ * This file will monkey patch the pure-PHP implementation in place of the
+ * PECL functions, but only if they do not already exist.
+ *
+ * Thus, the functions just proxy to the appropriate ParagonIE_Sodium_Compat
+ * method.
+ */
+if (!is_callable('\\Sodium\\bin2hex')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::bin2hex()
+ * @param string $string
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function bin2hex($string)
+ {
+ return ParagonIE_Sodium_Compat::bin2hex($string);
+ }
+}
+if (!is_callable('\\Sodium\\compare')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::compare()
+ * @param string $a
+ * @param string $b
+ * @return int
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function compare($a, $b)
+ {
+ return ParagonIE_Sodium_Compat::compare($a, $b);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_aead_aes256gcm_decrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt()
+ * @param string $message
+ * @param string $assocData
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_decrypt($message, $assocData, $nonce, $key);
+ } catch (\TypeError $ex) {
+ return false;
+ } catch (\SodiumException $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('\\Sodium\\crypto_aead_aes256gcm_encrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt()
+ * @param string $message
+ * @param string $assocData
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_encrypt($message, $assocData, $nonce, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_aead_aes256gcm_is_available')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available()
+ * @return bool
+ */
+ function crypto_aead_aes256gcm_is_available()
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_aes256gcm_is_available();
+ }
+}
+if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_decrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt()
+ * @param string $message
+ * @param string $assocData
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_decrypt($message, $assocData, $nonce, $key);
+ } catch (\TypeError $ex) {
+ return false;
+ } catch (\SodiumException $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_encrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt()
+ * @param string $message
+ * @param string $assocData
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_encrypt($message, $assocData, $nonce, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_ietf_decrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt()
+ * @param string $message
+ * @param string $assocData
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_decrypt($message, $assocData, $nonce, $key);
+ } catch (\TypeError $ex) {
+ return false;
+ } catch (\SodiumException $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('\\Sodium\\crypto_aead_chacha20poly1305_ietf_encrypt')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt()
+ * @param string $message
+ * @param string $assocData
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_aead_chacha20poly1305_ietf_encrypt($message, $assocData, $nonce, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_auth')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_auth()
+ * @param string $message
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_auth($message, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_auth($message, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_auth_verify')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_auth_verify()
+ * @param string $mac
+ * @param string $message
+ * @param string $key
+ * @return bool
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_auth_verify($mac, $message, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_auth_verify($mac, $message, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box()
+ * @param string $message
+ * @param string $nonce
+ * @param string $kp
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_box($message, $nonce, $kp)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box($message, $nonce, $kp);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_keypair')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_keypair()
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_box_keypair()
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_keypair();
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_keypair_from_secretkey_and_publickey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey()
+ * @param string $sk
+ * @param string $pk
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_box_keypair_from_secretkey_and_publickey($sk, $pk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey($sk, $pk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_open()
+ * @param string $message
+ * @param string $nonce
+ * @param string $kp
+ * @return string|bool
+ */
+ function crypto_box_open($message, $nonce, $kp)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_box_open($message, $nonce, $kp);
+ } catch (\TypeError $ex) {
+ return false;
+ } catch (\SodiumException $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_publickey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_publickey()
+ * @param string $keypair
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_box_publickey($keypair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_publickey($keypair);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_publickey_from_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey()
+ * @param string $sk
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_box_publickey_from_secretkey($sk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_publickey_from_secretkey($sk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_seal')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_seal_open()
+ * @param string $message
+ * @param string $publicKey
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_box_seal($message, $publicKey)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_seal($message, $publicKey);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_seal_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_seal_open()
+ * @param string $message
+ * @param string $kp
+ * @return string|bool
+ */
+ function crypto_box_seal_open($message, $kp)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_box_seal_open($message, $kp);
+ } catch (\TypeError $ex) {
+ return false;
+ } catch (\SodiumException $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('\\Sodium\\crypto_box_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_box_secretkey()
+ * @param string $keypair
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_box_secretkey($keypair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_box_secretkey($keypair);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_generichash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash()
+ * @param string $message
+ * @param string|null $key
+ * @param int $outLen
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_generichash($message, $key = null, $outLen = 32)
+ {
+ return ParagonIE_Sodium_Compat::crypto_generichash($message, $key, $outLen);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_generichash_final')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash_final()
+ * @param string|null $ctx
+ * @param int $outputLength
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_generichash_final(&$ctx, $outputLength = 32)
+ {
+ return ParagonIE_Sodium_Compat::crypto_generichash_final($ctx, $outputLength);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_generichash_init')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash_init()
+ * @param string|null $key
+ * @param int $outLen
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_generichash_init($key = null, $outLen = 32)
+ {
+ return ParagonIE_Sodium_Compat::crypto_generichash_init($key, $outLen);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_generichash_update')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_generichash_update()
+ * @param string|null $ctx
+ * @param string $message
+ * @return void
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_generichash_update(&$ctx, $message = '')
+ {
+ ParagonIE_Sodium_Compat::crypto_generichash_update($ctx, $message);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_kx')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_kx()
+ * @param string $my_secret
+ * @param string $their_public
+ * @param string $client_public
+ * @param string $server_public
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_kx($my_secret, $their_public, $client_public, $server_public)
+ {
+ return ParagonIE_Sodium_Compat::crypto_kx(
+ $my_secret,
+ $their_public,
+ $client_public,
+ $server_public,
+ true
+ );
+ }
+}
+if (!is_callable('\\Sodium\\crypto_pwhash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash()
+ * @param int $outlen
+ * @param string $passwd
+ * @param string $salt
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_pwhash_str')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_str()
+ * @param string $passwd
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_pwhash_str($passwd, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_str($passwd, $opslimit, $memlimit);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_pwhash_str_verify')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_str_verify()
+ * @param string $passwd
+ * @param string $hash
+ * @return bool
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_pwhash_str_verify($passwd, $hash)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_str_verify($passwd, $hash);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_pwhash_scryptsalsa208sha256')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256()
+ * @param int $outlen
+ * @param string $passwd
+ * @param string $salt
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str()
+ * @param string $passwd
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str_verify')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify()
+ * @param string $passwd
+ * @param string $hash
+ * @return bool
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash)
+ {
+ return ParagonIE_Sodium_Compat::crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_scalarmult')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_scalarmult()
+ * @param string $n
+ * @param string $p
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_scalarmult($n, $p)
+ {
+ return ParagonIE_Sodium_Compat::crypto_scalarmult($n, $p);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_scalarmult_base')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_scalarmult_base()
+ * @param string $n
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_scalarmult_base($n)
+ {
+ return ParagonIE_Sodium_Compat::crypto_scalarmult_base($n);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_secretbox')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_secretbox()
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_secretbox($message, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_secretbox($message, $nonce, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_secretbox_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_secretbox_open()
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @return string|bool
+ */
+ function crypto_secretbox_open($message, $nonce, $key)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_secretbox_open($message, $nonce, $key);
+ } catch (\TypeError $ex) {
+ return false;
+ } catch (\SodiumException $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('\\Sodium\\crypto_shorthash')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_shorthash()
+ * @param string $message
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_shorthash($message, $key = '')
+ {
+ return ParagonIE_Sodium_Compat::crypto_shorthash($message, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign()
+ * @param string $message
+ * @param string $sk
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign($message, $sk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign($message, $sk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_detached')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_detached()
+ * @param string $message
+ * @param string $sk
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_detached($message, $sk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_detached($message, $sk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_keypair')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_keypair()
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_keypair()
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_keypair();
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_open')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_open()
+ * @param string $signedMessage
+ * @param string $pk
+ * @return string|bool
+ */
+ function crypto_sign_open($signedMessage, $pk)
+ {
+ try {
+ return ParagonIE_Sodium_Compat::crypto_sign_open($signedMessage, $pk);
+ } catch (\TypeError $ex) {
+ return false;
+ } catch (\SodiumException $ex) {
+ return false;
+ }
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_publickey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_publickey()
+ * @param string $keypair
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_publickey($keypair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_publickey($keypair);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_publickey_from_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey()
+ * @param string $sk
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_publickey_from_secretkey($sk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_publickey_from_secretkey($sk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_secretkey')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_secretkey()
+ * @param string $keypair
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_secretkey($keypair)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_secretkey($keypair);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_seed_keypair')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_seed_keypair()
+ * @param string $seed
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_seed_keypair($seed)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_seed_keypair($seed);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_verify_detached')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_verify_detached()
+ * @param string $signature
+ * @param string $message
+ * @param string $pk
+ * @return bool
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_verify_detached($signature, $message, $pk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_verify_detached($signature, $message, $pk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_ed25519_pk_to_curve25519')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519()
+ * @param string $pk
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_ed25519_pk_to_curve25519($pk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_ed25519_pk_to_curve25519($pk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_sign_ed25519_sk_to_curve25519')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519()
+ * @param string $sk
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_sign_ed25519_sk_to_curve25519($sk)
+ {
+ return ParagonIE_Sodium_Compat::crypto_sign_ed25519_sk_to_curve25519($sk);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_stream')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream()
+ * @param int $len
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_stream($len, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream($len, $nonce, $key);
+ }
+}
+if (!is_callable('\\Sodium\\crypto_stream_xor')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream_xor()
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function crypto_stream_xor($message, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream_xor($message, $nonce, $key);
+ }
+}
+if (!is_callable('\\Sodium\\hex2bin')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::hex2bin()
+ * @param string $string
+ * @return string
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function hex2bin($string)
+ {
+ return ParagonIE_Sodium_Compat::hex2bin($string);
+ }
+}
+if (!is_callable('\\Sodium\\memcmp')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::memcmp()
+ * @param string $a
+ * @param string $b
+ * @return int
+ * @throws \SodiumException
+ * @throws \TypeError
+ */
+ function memcmp($a, $b)
+ {
+ return ParagonIE_Sodium_Compat::memcmp($a, $b);
+ }
+}
+if (!is_callable('\\Sodium\\memzero')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::memzero()
+ * @param string $str
+ * @return void
+ * @throws \SodiumException
+ * @throws \TypeError
+ *
+ * @psalm-suppress MissingParamType
+ * @psalm-suppress MissingReturnType
+ * @psalm-suppress ReferenceConstraintViolation
+ */
+ function memzero(&$str)
+ {
+ ParagonIE_Sodium_Compat::memzero($str);
+ }
+}
+if (!is_callable('\\Sodium\\randombytes_buf')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::randombytes_buf()
+ * @param int $amount
+ * @return string
+ * @throws \TypeError
+ */
+ function randombytes_buf($amount)
+ {
+ return ParagonIE_Sodium_Compat::randombytes_buf($amount);
+ }
+}
+
+if (!is_callable('\\Sodium\\randombytes_uniform')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::randombytes_uniform()
+ * @param int $upperLimit
+ * @return int
+ * @throws \SodiumException
+ * @throws \Error
+ */
+ function randombytes_uniform($upperLimit)
+ {
+ return ParagonIE_Sodium_Compat::randombytes_uniform($upperLimit);
+ }
+}
+
+if (!is_callable('\\Sodium\\randombytes_random16')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::randombytes_random16()
+ * @return int
+ */
+ function randombytes_random16()
+ {
+ return ParagonIE_Sodium_Compat::randombytes_random16();
+ }
+}
+
+if (!defined('\\Sodium\\CRYPTO_AUTH_BYTES')) {
+ require_once dirname(__FILE__) . '/constants.php';
+}
diff --git a/vendor/paragonie/sodium_compat/lib/stream-xchacha20.php b/vendor/paragonie/sodium_compat/lib/stream-xchacha20.php
index 44a6b5b..ffeae33 100644
--- a/vendor/paragonie/sodium_compat/lib/stream-xchacha20.php
+++ b/vendor/paragonie/sodium_compat/lib/stream-xchacha20.php
@@ -1,43 +1,59 @@
-<?php
-
-if (!is_callable('sodium_crypto_stream_xchacha20')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20()
- * @param int $len
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_stream_xchacha20($len, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_stream_xchacha20($len, $nonce, $key, true);
- }
-}
-if (!is_callable('sodium_crypto_stream_xchacha20_keygen')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen()
- * @return string
- * @throws Exception
- */
- function sodium_crypto_stream_xchacha20_keygen()
- {
- return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen();
- }
-}
-if (!is_callable('sodium_crypto_stream_xchacha20_xor')) {
- /**
- * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor()
- * @param string $message
- * @param string $nonce
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- function sodium_crypto_stream_xchacha20_xor($message, $nonce, $key)
- {
- return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor($message, $nonce, $key, true);
- }
-}
+<?php
+
+if (!is_callable('sodium_crypto_stream_xchacha20')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20()
+ * @param int $len
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_stream_xchacha20($len, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream_xchacha20($len, $nonce, $key, true);
+ }
+}
+if (!is_callable('sodium_crypto_stream_xchacha20_keygen')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen()
+ * @return string
+ * @throws Exception
+ */
+ function sodium_crypto_stream_xchacha20_keygen()
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_keygen();
+ }
+}
+if (!is_callable('sodium_crypto_stream_xchacha20_xor')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor()
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_stream_xchacha20_xor($message, $nonce, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor($message, $nonce, $key, true);
+ }
+}
+if (!is_callable('sodium_crypto_stream_xchacha20_xor_ic')) {
+ /**
+ * @see ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor_ic()
+ * @param string $message
+ * @param string $nonce
+ * @param int $counter
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ function sodium_crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key)
+ {
+ return ParagonIE_Sodium_Compat::crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key, true);
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Compat.php b/vendor/paragonie/sodium_compat/src/Compat.php
index 286d37e..3afe97c 100644
--- a/vendor/paragonie/sodium_compat/src/Compat.php
+++ b/vendor/paragonie/sodium_compat/src/Compat.php
@@ -1,3947 +1,4002 @@
-<?php
-
-/**
- * Libsodium compatibility layer
- *
- * This is the only class you should be interfacing with, as a user of
- * sodium_compat.
- *
- * If the PHP extension for libsodium is installed, it will always use that
- * instead of our implementations. You get better performance and stronger
- * guarantees against side-channels that way.
- *
- * However, if your users don't have the PHP extension installed, we offer a
- * compatible interface here. It will give you the correct results as if the
- * PHP extension was installed. It won't be as fast, of course.
- *
- * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION *
- * *
- * Until audited, this is probably not safe to use! DANGER WILL ROBINSON *
- * *
- * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION *
- */
-
-if (class_exists('ParagonIE_Sodium_Compat', false)) {
- return;
-}
-
-class ParagonIE_Sodium_Compat
-{
- /**
- * This parameter prevents the use of the PECL extension.
- * It should only be used for unit testing.
- *
- * @var bool
- */
- public static $disableFallbackForUnitTests = false;
-
- /**
- * Use fast multiplication rather than our constant-time multiplication
- * implementation. Can be enabled at runtime. Only enable this if you
- * are absolutely certain that there is no timing leak on your platform.
- *
- * @var bool
- */
- public static $fastMult = false;
-
- const LIBRARY_MAJOR_VERSION = 9;
- const LIBRARY_MINOR_VERSION = 1;
- const LIBRARY_VERSION_MAJOR = 9;
- const LIBRARY_VERSION_MINOR = 1;
- const VERSION_STRING = 'polyfill-1.0.8';
-
- // From libsodium
- const BASE64_VARIANT_ORIGINAL = 1;
- const BASE64_VARIANT_ORIGINAL_NO_PADDING = 3;
- const BASE64_VARIANT_URLSAFE = 5;
- const BASE64_VARIANT_URLSAFE_NO_PADDING = 7;
- const CRYPTO_AEAD_AES256GCM_KEYBYTES = 32;
- const CRYPTO_AEAD_AES256GCM_NSECBYTES = 0;
- const CRYPTO_AEAD_AES256GCM_NPUBBYTES = 12;
- const CRYPTO_AEAD_AES256GCM_ABYTES = 16;
- const CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES = 32;
- const CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES = 0;
- const CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES = 8;
- const CRYPTO_AEAD_CHACHA20POLY1305_ABYTES = 16;
- const CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES = 32;
- const CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES = 0;
- const CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES = 12;
- const CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES = 16;
- const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES = 32;
- const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NSECBYTES = 0;
- const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES = 24;
- const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES = 16;
- const CRYPTO_AUTH_BYTES = 32;
- const CRYPTO_AUTH_KEYBYTES = 32;
- const CRYPTO_BOX_SEALBYTES = 16;
- const CRYPTO_BOX_SECRETKEYBYTES = 32;
- const CRYPTO_BOX_PUBLICKEYBYTES = 32;
- const CRYPTO_BOX_KEYPAIRBYTES = 64;
- const CRYPTO_BOX_MACBYTES = 16;
- const CRYPTO_BOX_NONCEBYTES = 24;
- const CRYPTO_BOX_SEEDBYTES = 32;
- const CRYPTO_CORE_RISTRETTO255_BYTES = 32;
- const CRYPTO_CORE_RISTRETTO255_SCALARBYTES = 32;
- const CRYPTO_CORE_RISTRETTO255_HASHBYTES = 64;
- const CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES = 64;
- const CRYPTO_KDF_BYTES_MIN = 16;
- const CRYPTO_KDF_BYTES_MAX = 64;
- const CRYPTO_KDF_CONTEXTBYTES = 8;
- const CRYPTO_KDF_KEYBYTES = 32;
- const CRYPTO_KX_BYTES = 32;
- const CRYPTO_KX_PRIMITIVE = 'x25519blake2b';
- const CRYPTO_KX_SEEDBYTES = 32;
- const CRYPTO_KX_KEYPAIRBYTES = 64;
- const CRYPTO_KX_PUBLICKEYBYTES = 32;
- const CRYPTO_KX_SECRETKEYBYTES = 32;
- const CRYPTO_KX_SESSIONKEYBYTES = 32;
- const CRYPTO_GENERICHASH_BYTES = 32;
- const CRYPTO_GENERICHASH_BYTES_MIN = 16;
- const CRYPTO_GENERICHASH_BYTES_MAX = 64;
- const CRYPTO_GENERICHASH_KEYBYTES = 32;
- const CRYPTO_GENERICHASH_KEYBYTES_MIN = 16;
- const CRYPTO_GENERICHASH_KEYBYTES_MAX = 64;
- const CRYPTO_PWHASH_SALTBYTES = 16;
- const CRYPTO_PWHASH_STRPREFIX = '$argon2id$';
- const CRYPTO_PWHASH_ALG_ARGON2I13 = 1;
- const CRYPTO_PWHASH_ALG_ARGON2ID13 = 2;
- const CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE = 33554432;
- const CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE = 4;
- const CRYPTO_PWHASH_MEMLIMIT_MODERATE = 134217728;
- const CRYPTO_PWHASH_OPSLIMIT_MODERATE = 6;
- const CRYPTO_PWHASH_MEMLIMIT_SENSITIVE = 536870912;
- const CRYPTO_PWHASH_OPSLIMIT_SENSITIVE = 8;
- const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES = 32;
- const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX = '$7$';
- const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE = 534288;
- const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE = 16777216;
- const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE = 33554432;
- const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE = 1073741824;
- const CRYPTO_SCALARMULT_BYTES = 32;
- const CRYPTO_SCALARMULT_SCALARBYTES = 32;
- const CRYPTO_SCALARMULT_RISTRETTO255_BYTES = 32;
- const CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES = 32;
- const CRYPTO_SHORTHASH_BYTES = 8;
- const CRYPTO_SHORTHASH_KEYBYTES = 16;
- const CRYPTO_SECRETBOX_KEYBYTES = 32;
- const CRYPTO_SECRETBOX_MACBYTES = 16;
- const CRYPTO_SECRETBOX_NONCEBYTES = 24;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES = 17;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES = 24;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES = 32;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PUSH = 0;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PULL = 1;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY = 2;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_FINAL = 3;
- const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX = 0x3fffffff80;
- const CRYPTO_SIGN_BYTES = 64;
- const CRYPTO_SIGN_SEEDBYTES = 32;
- const CRYPTO_SIGN_PUBLICKEYBYTES = 32;
- const CRYPTO_SIGN_SECRETKEYBYTES = 64;
- const CRYPTO_SIGN_KEYPAIRBYTES = 96;
- const CRYPTO_STREAM_KEYBYTES = 32;
- const CRYPTO_STREAM_NONCEBYTES = 24;
- const CRYPTO_STREAM_XCHACHA20_KEYBYTES = 32;
- const CRYPTO_STREAM_XCHACHA20_NONCEBYTES = 24;
-
- /**
- * Add two numbers (little-endian unsigned), storing the value in the first
- * parameter.
- *
- * This mutates $val.
- *
- * @param string $val
- * @param string $addv
- * @return void
- * @throws SodiumException
- */
- public static function add(&$val, $addv)
- {
- $val_len = ParagonIE_Sodium_Core_Util::strlen($val);
- $addv_len = ParagonIE_Sodium_Core_Util::strlen($addv);
- if ($val_len !== $addv_len) {
- throw new SodiumException('values must have the same length');
- }
- $A = ParagonIE_Sodium_Core_Util::stringToIntArray($val);
- $B = ParagonIE_Sodium_Core_Util::stringToIntArray($addv);
-
- $c = 0;
- for ($i = 0; $i < $val_len; $i++) {
- $c += ($A[$i] + $B[$i]);
- $A[$i] = ($c & 0xff);
- $c >>= 8;
- }
- $val = ParagonIE_Sodium_Core_Util::intArrayToString($A);
- }
-
- /**
- * @param string $encoded
- * @param int $variant
- * @param string $ignore
- * @return string
- * @throws SodiumException
- */
- public static function base642bin($encoded, $variant, $ignore = '')
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($encoded, 'string', 1);
-
- /** @var string $encoded */
- $encoded = (string) $encoded;
- if (ParagonIE_Sodium_Core_Util::strlen($encoded) === 0) {
- return '';
- }
-
- // Just strip before decoding
- if (!empty($ignore)) {
- $encoded = str_replace($ignore, '', $encoded);
- }
-
- try {
- switch ($variant) {
- case self::BASE64_VARIANT_ORIGINAL:
- return ParagonIE_Sodium_Core_Base64_Original::decode($encoded, true);
- case self::BASE64_VARIANT_ORIGINAL_NO_PADDING:
- return ParagonIE_Sodium_Core_Base64_Original::decode($encoded, false);
- case self::BASE64_VARIANT_URLSAFE:
- return ParagonIE_Sodium_Core_Base64_UrlSafe::decode($encoded, true);
- case self::BASE64_VARIANT_URLSAFE_NO_PADDING:
- return ParagonIE_Sodium_Core_Base64_UrlSafe::decode($encoded, false);
- default:
- throw new SodiumException('invalid base64 variant identifier');
- }
- } catch (Exception $ex) {
- if ($ex instanceof SodiumException) {
- throw $ex;
- }
- throw new SodiumException('invalid base64 string');
- }
- }
-
- /**
- * @param string $decoded
- * @param int $variant
- * @return string
- * @throws SodiumException
- */
- public static function bin2base64($decoded, $variant)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($decoded, 'string', 1);
- /** @var string $decoded */
- $decoded = (string) $decoded;
- if (ParagonIE_Sodium_Core_Util::strlen($decoded) === 0) {
- return '';
- }
-
- switch ($variant) {
- case self::BASE64_VARIANT_ORIGINAL:
- return ParagonIE_Sodium_Core_Base64_Original::encode($decoded);
- case self::BASE64_VARIANT_ORIGINAL_NO_PADDING:
- return ParagonIE_Sodium_Core_Base64_Original::encodeUnpadded($decoded);
- case self::BASE64_VARIANT_URLSAFE:
- return ParagonIE_Sodium_Core_Base64_UrlSafe::encode($decoded);
- case self::BASE64_VARIANT_URLSAFE_NO_PADDING:
- return ParagonIE_Sodium_Core_Base64_UrlSafe::encodeUnpadded($decoded);
- default:
- throw new SodiumException('invalid base64 variant identifier');
- }
- }
-
- /**
- * Cache-timing-safe implementation of bin2hex().
- *
- * @param string $string A string (probably raw binary)
- * @return string A hexadecimal-encoded string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function bin2hex($string)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($string, 'string', 1);
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_bin2hex($string);
- }
- if (self::use_fallback('bin2hex')) {
- return (string) call_user_func('\\Sodium\\bin2hex', $string);
- }
- return ParagonIE_Sodium_Core_Util::bin2hex($string);
- }
-
- /**
- * Compare two strings, in constant-time.
- * Compared to memcmp(), compare() is more useful for sorting.
- *
- * @param string $left The left operand; must be a string
- * @param string $right The right operand; must be a string
- * @return int If < 0 if the left operand is less than the right
- * If = 0 if both strings are equal
- * If > 0 if the right operand is less than the left
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function compare($left, $right)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($left, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($right, 'string', 2);
-
- if (self::useNewSodiumAPI()) {
- return (int) sodium_compare($left, $right);
- }
- if (self::use_fallback('compare')) {
- return (int) call_user_func('\\Sodium\\compare', $left, $right);
- }
- return ParagonIE_Sodium_Core_Util::compare($left, $right);
- }
-
- /**
- * Is AES-256-GCM even available to use?
- *
- * @return bool
- * @psalm-suppress UndefinedFunction
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_aead_aes256gcm_is_available()
- {
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_aead_aes256gcm_is_available();
- }
- if (self::use_fallback('crypto_aead_aes256gcm_is_available')) {
- return call_user_func('\\Sodium\\crypto_aead_aes256gcm_is_available');
- }
- if (PHP_VERSION_ID < 70100) {
- // OpenSSL doesn't support AEAD before 7.1.0
- return false;
- }
- if (!is_callable('openssl_encrypt') || !is_callable('openssl_decrypt')) {
- // OpenSSL isn't installed
- return false;
- }
- return (bool) in_array('aes-256-gcm', openssl_get_cipher_methods());
- }
-
- /**
- * Authenticated Encryption with Associated Data: Decryption
- *
- * Algorithm:
- * AES-256-GCM
- *
- * This mode uses a 64-bit random nonce with a 64-bit counter.
- * IETF mode uses a 96-bit random nonce with a 32-bit counter.
- *
- * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 8 bytes
- * @param string $key Encryption key
- *
- * @return string|bool The original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_aead_aes256gcm_decrypt(
- $ciphertext = '',
- $assocData = '',
- $nonce = '',
- $key = ''
- ) {
- if (!self::crypto_aead_aes256gcm_is_available()) {
- throw new SodiumException('AES-256-GCM is not available');
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_AES256GCM_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_AES256GCM_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_AES256GCM_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_AES256GCM_KEYBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_AES256GCM_ABYTES) {
- throw new SodiumException('Message must be at least CRYPTO_AEAD_AES256GCM_ABYTES long');
- }
- if (!is_callable('openssl_decrypt')) {
- throw new SodiumException('The OpenSSL extension is not installed, or openssl_decrypt() is not available');
- }
-
- /** @var string $ctext */
- $ctext = ParagonIE_Sodium_Core_Util::substr($ciphertext, 0, -self::CRYPTO_AEAD_AES256GCM_ABYTES);
- /** @var string $authTag */
- $authTag = ParagonIE_Sodium_Core_Util::substr($ciphertext, -self::CRYPTO_AEAD_AES256GCM_ABYTES, 16);
- return openssl_decrypt(
- $ctext,
- 'aes-256-gcm',
- $key,
- OPENSSL_RAW_DATA,
- $nonce,
- $authTag,
- $assocData
- );
- }
-
- /**
- * Authenticated Encryption with Associated Data: Encryption
- *
- * Algorithm:
- * AES-256-GCM
- *
- * @param string $plaintext Message to be encrypted
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 8 bytes
- * @param string $key Encryption key
- *
- * @return string Ciphertext with a 16-byte GCM message
- * authentication code appended
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_aead_aes256gcm_encrypt(
- $plaintext = '',
- $assocData = '',
- $nonce = '',
- $key = ''
- ) {
- if (!self::crypto_aead_aes256gcm_is_available()) {
- throw new SodiumException('AES-256-GCM is not available');
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_AES256GCM_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_AES256GCM_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_AES256GCM_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_AES256GCM_KEYBYTES long');
- }
-
- if (!is_callable('openssl_encrypt')) {
- throw new SodiumException('The OpenSSL extension is not installed, or openssl_encrypt() is not available');
- }
-
- $authTag = '';
- $ciphertext = openssl_encrypt(
- $plaintext,
- 'aes-256-gcm',
- $key,
- OPENSSL_RAW_DATA,
- $nonce,
- $authTag,
- $assocData
- );
- return $ciphertext . $authTag;
- }
-
- /**
- * Return a secure random key for use with the AES-256-GCM
- * symmetric AEAD interface.
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_aead_aes256gcm_keygen()
- {
- return random_bytes(self::CRYPTO_AEAD_AES256GCM_KEYBYTES);
- }
-
- /**
- * Authenticated Encryption with Associated Data: Decryption
- *
- * Algorithm:
- * ChaCha20-Poly1305
- *
- * This mode uses a 64-bit random nonce with a 64-bit counter.
- * IETF mode uses a 96-bit random nonce with a 32-bit counter.
- *
- * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 8 bytes
- * @param string $key Encryption key
- *
- * @return string The original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_aead_chacha20poly1305_decrypt(
- $ciphertext = '',
- $assocData = '',
- $nonce = '',
- $key = ''
- ) {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_CHACHA20POLY1305_ABYTES) {
- throw new SodiumException('Message must be at least CRYPTO_AEAD_CHACHA20POLY1305_ABYTES long');
- }
-
- if (self::useNewSodiumAPI()) {
- /**
- * @psalm-suppress InvalidReturnStatement
- * @psalm-suppress FalsableReturnStatement
- */
- return sodium_crypto_aead_chacha20poly1305_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (self::use_fallback('crypto_aead_chacha20poly1305_decrypt')) {
- return call_user_func(
- '\\Sodium\\crypto_aead_chacha20poly1305_decrypt',
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
-
- /**
- * Authenticated Encryption with Associated Data
- *
- * Algorithm:
- * ChaCha20-Poly1305
- *
- * This mode uses a 64-bit random nonce with a 64-bit counter.
- * IETF mode uses a 96-bit random nonce with a 32-bit counter.
- *
- * @param string $plaintext Message to be encrypted
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 8 bytes
- * @param string $key Encryption key
- *
- * @return string Ciphertext with a 16-byte Poly1305 message
- * authentication code appended
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_aead_chacha20poly1305_encrypt(
- $plaintext = '',
- $assocData = '',
- $nonce = '',
- $key = ''
- ) {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_aead_chacha20poly1305_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (self::use_fallback('crypto_aead_chacha20poly1305_encrypt')) {
- return (string) call_user_func(
- '\\Sodium\\crypto_aead_chacha20poly1305_encrypt',
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
-
- /**
- * Authenticated Encryption with Associated Data: Decryption
- *
- * Algorithm:
- * ChaCha20-Poly1305
- *
- * IETF mode uses a 96-bit random nonce with a 32-bit counter.
- * Regular mode uses a 64-bit random nonce with a 64-bit counter.
- *
- * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 12 bytes
- * @param string $key Encryption key
- *
- * @return string The original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_aead_chacha20poly1305_ietf_decrypt(
- $ciphertext = '',
- $assocData = '',
- $nonce = '',
- $key = ''
- ) {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_CHACHA20POLY1305_ABYTES) {
- throw new SodiumException('Message must be at least CRYPTO_AEAD_CHACHA20POLY1305_ABYTES long');
- }
-
- if (self::useNewSodiumAPI()) {
- /**
- * @psalm-suppress InvalidReturnStatement
- * @psalm-suppress FalsableReturnStatement
- */
- return sodium_crypto_aead_chacha20poly1305_ietf_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (self::use_fallback('crypto_aead_chacha20poly1305_ietf_decrypt')) {
- return call_user_func(
- '\\Sodium\\crypto_aead_chacha20poly1305_ietf_decrypt',
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_ietf_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_ietf_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
-
- /**
- * Return a secure random key for use with the ChaCha20-Poly1305
- * symmetric AEAD interface.
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_aead_chacha20poly1305_keygen()
- {
- return random_bytes(self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES);
- }
-
- /**
- * Authenticated Encryption with Associated Data
- *
- * Algorithm:
- * ChaCha20-Poly1305
- *
- * IETF mode uses a 96-bit random nonce with a 32-bit counter.
- * Regular mode uses a 64-bit random nonce with a 64-bit counter.
- *
- * @param string $plaintext Message to be encrypted
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 8 bytes
- * @param string $key Encryption key
- *
- * @return string Ciphertext with a 16-byte Poly1305 message
- * authentication code appended
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_aead_chacha20poly1305_ietf_encrypt(
- $plaintext = '',
- $assocData = '',
- $nonce = '',
- $key = ''
- ) {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- if (!is_null($assocData)) {
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_aead_chacha20poly1305_ietf_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (self::use_fallback('crypto_aead_chacha20poly1305_ietf_encrypt')) {
- return (string) call_user_func(
- '\\Sodium\\crypto_aead_chacha20poly1305_ietf_encrypt',
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_ietf_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_ietf_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
-
- /**
- * Return a secure random key for use with the ChaCha20-Poly1305
- * symmetric AEAD interface. (IETF version)
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_aead_chacha20poly1305_ietf_keygen()
- {
- return random_bytes(self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES);
- }
-
- /**
- * Authenticated Encryption with Associated Data: Decryption
- *
- * Algorithm:
- * XChaCha20-Poly1305
- *
- * This mode uses a 64-bit random nonce with a 64-bit counter.
- * IETF mode uses a 96-bit random nonce with a 32-bit counter.
- *
- * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 8 bytes
- * @param string $key Encryption key
- * @param bool $dontFallback Don't fallback to ext/sodium
- *
- * @return string|bool The original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_aead_xchacha20poly1305_ietf_decrypt(
- $ciphertext = '',
- $assocData = '',
- $nonce = '',
- $key = '',
- $dontFallback = false
- ) {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- if (!is_null($assocData)) {
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- } else {
- $assocData = '';
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES) {
- throw new SodiumException('Message must be at least CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES long');
- }
- if (self::useNewSodiumAPI() && !$dontFallback) {
- if (is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_decrypt')) {
- return sodium_crypto_aead_xchacha20poly1305_ietf_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- }
-
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
- return ParagonIE_Sodium_Crypto::aead_xchacha20poly1305_ietf_decrypt(
- $ciphertext,
- $assocData,
- $nonce,
- $key
- );
- }
-
- /**
- * Authenticated Encryption with Associated Data
- *
- * Algorithm:
- * XChaCha20-Poly1305
- *
- * This mode uses a 64-bit random nonce with a 64-bit counter.
- * IETF mode uses a 96-bit random nonce with a 32-bit counter.
- *
- * @param string $plaintext Message to be encrypted
- * @param string $assocData Authenticated Associated Data (unencrypted)
- * @param string $nonce Number to be used only Once; must be 8 bytes
- * @param string $key Encryption key
- * @param bool $dontFallback Don't fallback to ext/sodium
- *
- * @return string Ciphertext with a 16-byte Poly1305 message
- * authentication code appended
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_aead_xchacha20poly1305_ietf_encrypt(
- $plaintext = '',
- $assocData = '',
- $nonce = '',
- $key = '',
- $dontFallback = false
- ) {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- if (!is_null($assocData)) {
- ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
- } else {
- $assocData = '';
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES) {
- throw new SodiumException('Nonce must be CRYPTO_AEAD_XCHACHA20POLY1305_NPUBBYTES long');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES) {
- throw new SodiumException('Key must be CRYPTO_AEAD_XCHACHA20POLY1305_KEYBYTES long');
- }
- if (self::useNewSodiumAPI() && !$dontFallback) {
- if (is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_encrypt')) {
- return sodium_crypto_aead_xchacha20poly1305_ietf_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- }
-
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
- return ParagonIE_Sodium_Crypto::aead_xchacha20poly1305_ietf_encrypt(
- $plaintext,
- $assocData,
- $nonce,
- $key
- );
- }
-
- /**
- * Return a secure random key for use with the XChaCha20-Poly1305
- * symmetric AEAD interface.
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_aead_xchacha20poly1305_ietf_keygen()
- {
- return random_bytes(self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES);
- }
-
- /**
- * Authenticate a message. Uses symmetric-key cryptography.
- *
- * Algorithm:
- * HMAC-SHA512-256. Which is HMAC-SHA-512 truncated to 256 bits.
- * Not to be confused with HMAC-SHA-512/256 which would use the
- * SHA-512/256 hash function (uses different initial parameters
- * but still truncates to 256 bits to sidestep length-extension
- * attacks).
- *
- * @param string $message Message to be authenticated
- * @param string $key Symmetric authentication key
- * @return string Message authentication code
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_auth($message, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AUTH_KEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_AUTH_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_auth($message, $key);
- }
- if (self::use_fallback('crypto_auth')) {
- return (string) call_user_func('\\Sodium\\crypto_auth', $message, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::auth($message, $key);
- }
- return ParagonIE_Sodium_Crypto::auth($message, $key);
- }
-
- /**
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_auth_keygen()
- {
- return random_bytes(self::CRYPTO_AUTH_KEYBYTES);
- }
-
- /**
- * Verify the MAC of a message previously authenticated with crypto_auth.
- *
- * @param string $mac Message authentication code
- * @param string $message Message whose authenticity you are attempting to
- * verify (with a given MAC and key)
- * @param string $key Symmetric authentication key
- * @return bool TRUE if authenticated, FALSE otherwise
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_auth_verify($mac, $message, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($mac, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($mac) !== self::CRYPTO_AUTH_BYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_AUTH_BYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AUTH_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_AUTH_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (bool) sodium_crypto_auth_verify($mac, $message, $key);
- }
- if (self::use_fallback('crypto_auth_verify')) {
- return (bool) call_user_func('\\Sodium\\crypto_auth_verify', $mac, $message, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::auth_verify($mac, $message, $key);
- }
- return ParagonIE_Sodium_Crypto::auth_verify($mac, $message, $key);
- }
-
- /**
- * Authenticated asymmetric-key encryption. Both the sender and recipient
- * may decrypt messages.
- *
- * Algorithm: X25519-XSalsa20-Poly1305.
- * X25519: Elliptic-Curve Diffie Hellman over Curve25519.
- * XSalsa20: Extended-nonce variant of salsa20.
- * Poyl1305: Polynomial MAC for one-time message authentication.
- *
- * @param string $plaintext The message to be encrypted
- * @param string $nonce A Number to only be used Once; must be 24 bytes
- * @param string $keypair Your secret key and your recipient's public key
- * @return string Ciphertext with 16-byte Poly1305 MAC
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_box($plaintext, $nonce, $keypair)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_BOX_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_BOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_BOX_KEYPAIRBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box($plaintext, $nonce, $keypair);
- }
- if (self::use_fallback('crypto_box')) {
- return (string) call_user_func('\\Sodium\\crypto_box', $plaintext, $nonce, $keypair);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box($plaintext, $nonce, $keypair);
- }
- return ParagonIE_Sodium_Crypto::box($plaintext, $nonce, $keypair);
- }
-
- /**
- * Anonymous public-key encryption. Only the recipient may decrypt messages.
- *
- * Algorithm: X25519-XSalsa20-Poly1305, as with crypto_box.
- * The sender's X25519 keypair is ephemeral.
- * Nonce is generated from the BLAKE2b hash of both public keys.
- *
- * This provides ciphertext integrity.
- *
- * @param string $plaintext Message to be sealed
- * @param string $publicKey Your recipient's public key
- * @return string Sealed message that only your recipient can
- * decrypt
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_box_seal($plaintext, $publicKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box_seal($plaintext, $publicKey);
- }
- if (self::use_fallback('crypto_box_seal')) {
- return (string) call_user_func('\\Sodium\\crypto_box_seal', $plaintext, $publicKey);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_seal($plaintext, $publicKey);
- }
- return ParagonIE_Sodium_Crypto::box_seal($plaintext, $publicKey);
- }
-
- /**
- * Opens a message encrypted with crypto_box_seal(). Requires
- * the recipient's keypair (sk || pk) to decrypt successfully.
- *
- * This validates ciphertext integrity.
- *
- * @param string $ciphertext Sealed message to be opened
- * @param string $keypair Your crypto_box keypair
- * @return string The original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_box_seal_open($ciphertext, $keypair)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_BOX_KEYPAIRBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- /**
- * @psalm-suppress InvalidReturnStatement
- * @psalm-suppress FalsableReturnStatement
- */
- return sodium_crypto_box_seal_open($ciphertext, $keypair);
- }
- if (self::use_fallback('crypto_box_seal_open')) {
- return call_user_func('\\Sodium\\crypto_box_seal_open', $ciphertext, $keypair);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_seal_open($ciphertext, $keypair);
- }
- return ParagonIE_Sodium_Crypto::box_seal_open($ciphertext, $keypair);
- }
-
- /**
- * Generate a new random X25519 keypair.
- *
- * @return string A 64-byte string; the first 32 are your secret key, while
- * the last 32 are your public key. crypto_box_secretkey()
- * and crypto_box_publickey() exist to separate them so you
- * don't accidentally get them mixed up!
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_box_keypair()
- {
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box_keypair();
- }
- if (self::use_fallback('crypto_box_keypair')) {
- return (string) call_user_func('\\Sodium\\crypto_box_keypair');
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_keypair();
- }
- return ParagonIE_Sodium_Crypto::box_keypair();
- }
-
- /**
- * Combine two keys into a keypair for use in library methods that expect
- * a keypair. This doesn't necessarily have to be the same person's keys.
- *
- * @param string $secretKey Secret key
- * @param string $publicKey Public key
- * @return string Keypair
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_box_keypair_from_secretkey_and_publickey($secretKey, $publicKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box_keypair_from_secretkey_and_publickey($secretKey, $publicKey);
- }
- if (self::use_fallback('crypto_box_keypair_from_secretkey_and_publickey')) {
- return (string) call_user_func('\\Sodium\\crypto_box_keypair_from_secretkey_and_publickey', $secretKey, $publicKey);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_keypair_from_secretkey_and_publickey($secretKey, $publicKey);
- }
- return ParagonIE_Sodium_Crypto::box_keypair_from_secretkey_and_publickey($secretKey, $publicKey);
- }
-
- /**
- * Decrypt a message previously encrypted with crypto_box().
- *
- * @param string $ciphertext Encrypted message
- * @param string $nonce Number to only be used Once; must be 24 bytes
- * @param string $keypair Your secret key and the sender's public key
- * @return string The original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_box_open($ciphertext, $nonce, $keypair)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_BOX_MACBYTES) {
- throw new SodiumException('Argument 1 must be at least CRYPTO_BOX_MACBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_BOX_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_BOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_BOX_KEYPAIRBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- /**
- * @psalm-suppress InvalidReturnStatement
- * @psalm-suppress FalsableReturnStatement
- */
- return sodium_crypto_box_open($ciphertext, $nonce, $keypair);
- }
- if (self::use_fallback('crypto_box_open')) {
- return call_user_func('\\Sodium\\crypto_box_open', $ciphertext, $nonce, $keypair);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_open($ciphertext, $nonce, $keypair);
- }
- return ParagonIE_Sodium_Crypto::box_open($ciphertext, $nonce, $keypair);
- }
-
- /**
- * Extract the public key from a crypto_box keypair.
- *
- * @param string $keypair Keypair containing secret and public key
- * @return string Your crypto_box public key
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_box_publickey($keypair)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_BOX_KEYPAIRBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box_publickey($keypair);
- }
- if (self::use_fallback('crypto_box_publickey')) {
- return (string) call_user_func('\\Sodium\\crypto_box_publickey', $keypair);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_publickey($keypair);
- }
- return ParagonIE_Sodium_Crypto::box_publickey($keypair);
- }
-
- /**
- * Calculate the X25519 public key from a given X25519 secret key.
- *
- * @param string $secretKey Any X25519 secret key
- * @return string The corresponding X25519 public key
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_box_publickey_from_secretkey($secretKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box_publickey_from_secretkey($secretKey);
- }
- if (self::use_fallback('crypto_box_publickey_from_secretkey')) {
- return (string) call_user_func('\\Sodium\\crypto_box_publickey_from_secretkey', $secretKey);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_publickey_from_secretkey($secretKey);
- }
- return ParagonIE_Sodium_Crypto::box_publickey_from_secretkey($secretKey);
- }
-
- /**
- * Extract the secret key from a crypto_box keypair.
- *
- * @param string $keypair
- * @return string Your crypto_box secret key
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_box_secretkey($keypair)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_BOX_KEYPAIRBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box_secretkey($keypair);
- }
- if (self::use_fallback('crypto_box_secretkey')) {
- return (string) call_user_func('\\Sodium\\crypto_box_secretkey', $keypair);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_secretkey($keypair);
- }
- return ParagonIE_Sodium_Crypto::box_secretkey($keypair);
- }
-
- /**
- * Generate an X25519 keypair from a seed.
- *
- * @param string $seed
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress UndefinedFunction
- */
- public static function crypto_box_seed_keypair($seed)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($seed, 'string', 1);
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_box_seed_keypair($seed);
- }
- if (self::use_fallback('crypto_box_seed_keypair')) {
- return (string) call_user_func('\\Sodium\\crypto_box_seed_keypair', $seed);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::box_seed_keypair($seed);
- }
- return ParagonIE_Sodium_Crypto::box_seed_keypair($seed);
- }
-
- /**
- * Calculates a BLAKE2b hash, with an optional key.
- *
- * @param string $message The message to be hashed
- * @param string|null $key If specified, must be a string between 16
- * and 64 bytes long
- * @param int $length Output length in bytes; must be between 16
- * and 64 (default = 32)
- * @return string Raw binary
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_generichash($message, $key = '', $length = self::CRYPTO_GENERICHASH_BYTES)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
- if (is_null($key)) {
- $key = '';
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 3);
-
- /* Input validation: */
- if (!empty($key)) {
- if (ParagonIE_Sodium_Core_Util::strlen($key) < self::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
- throw new SodiumException('Unsupported key size. Must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) > self::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
- throw new SodiumException('Unsupported key size. Must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes long.');
- }
- }
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_generichash($message, $key, $length);
- }
- if (self::use_fallback('crypto_generichash')) {
- return (string) call_user_func('\\Sodium\\crypto_generichash', $message, $key, $length);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::generichash($message, $key, $length);
- }
- return ParagonIE_Sodium_Crypto::generichash($message, $key, $length);
- }
-
- /**
- * Get the final BLAKE2b hash output for a given context.
- *
- * @param string $ctx BLAKE2 hashing context. Generated by crypto_generichash_init().
- * @param int $length Hash output size.
- * @return string Final BLAKE2b hash.
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress ReferenceConstraintViolation
- * @psalm-suppress ConflictingReferenceConstraint
- */
- public static function crypto_generichash_final(&$ctx, $length = self::CRYPTO_GENERICHASH_BYTES)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ctx, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 2);
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_generichash_final($ctx, $length);
- }
- if (self::use_fallback('crypto_generichash_final')) {
- $func = '\\Sodium\\crypto_generichash_final';
- return (string) $func($ctx, $length);
- }
- if ($length < 1) {
- try {
- self::memzero($ctx);
- } catch (SodiumException $ex) {
- unset($ctx);
- }
- return '';
- }
- if (PHP_INT_SIZE === 4) {
- $result = ParagonIE_Sodium_Crypto32::generichash_final($ctx, $length);
- } else {
- $result = ParagonIE_Sodium_Crypto::generichash_final($ctx, $length);
- }
- try {
- self::memzero($ctx);
- } catch (SodiumException $ex) {
- unset($ctx);
- }
- return $result;
- }
-
- /**
- * Initialize a BLAKE2b hashing context, for use in a streaming interface.
- *
- * @param string|null $key If specified must be a string between 16 and 64 bytes
- * @param int $length The size of the desired hash output
- * @return string A BLAKE2 hashing context, encoded as a string
- * (To be 100% compatible with ext/libsodium)
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_generichash_init($key = '', $length = self::CRYPTO_GENERICHASH_BYTES)
- {
- /* Type checks: */
- if (is_null($key)) {
- $key = '';
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 2);
-
- /* Input validation: */
- if (!empty($key)) {
- if (ParagonIE_Sodium_Core_Util::strlen($key) < self::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
- throw new SodiumException('Unsupported key size. Must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) > self::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
- throw new SodiumException('Unsupported key size. Must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes long.');
- }
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_generichash_init($key, $length);
- }
- if (self::use_fallback('crypto_generichash_init')) {
- return (string) call_user_func('\\Sodium\\crypto_generichash_init', $key, $length);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::generichash_init($key, $length);
- }
- return ParagonIE_Sodium_Crypto::generichash_init($key, $length);
- }
-
- /**
- * Initialize a BLAKE2b hashing context, for use in a streaming interface.
- *
- * @param string|null $key If specified must be a string between 16 and 64 bytes
- * @param int $length The size of the desired hash output
- * @param string $salt Salt (up to 16 bytes)
- * @param string $personal Personalization string (up to 16 bytes)
- * @return string A BLAKE2 hashing context, encoded as a string
- * (To be 100% compatible with ext/libsodium)
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_generichash_init_salt_personal(
- $key = '',
- $length = self::CRYPTO_GENERICHASH_BYTES,
- $salt = '',
- $personal = ''
- ) {
- /* Type checks: */
- if (is_null($key)) {
- $key = '';
- }
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($salt, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($personal, 'string', 4);
- $salt = str_pad($salt, 16, "\0", STR_PAD_RIGHT);
- $personal = str_pad($personal, 16, "\0", STR_PAD_RIGHT);
-
- /* Input validation: */
- if (!empty($key)) {
- /*
- if (ParagonIE_Sodium_Core_Util::strlen($key) < self::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
- throw new SodiumException('Unsupported key size. Must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes long.');
- }
- */
- if (ParagonIE_Sodium_Core_Util::strlen($key) > self::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
- throw new SodiumException('Unsupported key size. Must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes long.');
- }
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::generichash_init_salt_personal($key, $length, $salt, $personal);
- }
- return ParagonIE_Sodium_Crypto::generichash_init_salt_personal($key, $length, $salt, $personal);
- }
-
- /**
- * Update a BLAKE2b hashing context with additional data.
- *
- * @param string $ctx BLAKE2 hashing context. Generated by crypto_generichash_init().
- * $ctx is passed by reference and gets updated in-place.
- * @param-out string $ctx
- * @param string $message The message to append to the existing hash state.
- * @return void
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress ReferenceConstraintViolation
- */
- public static function crypto_generichash_update(&$ctx, $message)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ctx, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 2);
-
- if (self::useNewSodiumAPI()) {
- sodium_crypto_generichash_update($ctx, $message);
- return;
- }
- if (self::use_fallback('crypto_generichash_update')) {
- $func = '\\Sodium\\crypto_generichash_update';
- $func($ctx, $message);
- return;
- }
- if (PHP_INT_SIZE === 4) {
- $ctx = ParagonIE_Sodium_Crypto32::generichash_update($ctx, $message);
- } else {
- $ctx = ParagonIE_Sodium_Crypto::generichash_update($ctx, $message);
- }
- }
-
- /**
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_generichash_keygen()
- {
- return random_bytes(self::CRYPTO_GENERICHASH_KEYBYTES);
- }
-
- /**
- * @param int $subkey_len
- * @param int $subkey_id
- * @param string $context
- * @param string $key
- * @return string
- * @throws SodiumException
- */
- public static function crypto_kdf_derive_from_key(
- $subkey_len,
- $subkey_id,
- $context,
- $key
- ) {
- ParagonIE_Sodium_Core_Util::declareScalarType($subkey_len, 'int', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($subkey_id, 'int', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($context, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
- $subkey_id = (int) $subkey_id;
- $subkey_len = (int) $subkey_len;
- $context = (string) $context;
- $key = (string) $key;
-
- if ($subkey_len < self::CRYPTO_KDF_BYTES_MIN) {
- throw new SodiumException('subkey cannot be smaller than SODIUM_CRYPTO_KDF_BYTES_MIN');
- }
- if ($subkey_len > self::CRYPTO_KDF_BYTES_MAX) {
- throw new SodiumException('subkey cannot be larger than SODIUM_CRYPTO_KDF_BYTES_MAX');
- }
- if ($subkey_id < 0) {
- throw new SodiumException('subkey_id cannot be negative');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($context) !== self::CRYPTO_KDF_CONTEXTBYTES) {
- throw new SodiumException('context should be SODIUM_CRYPTO_KDF_CONTEXTBYTES bytes');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_KDF_KEYBYTES) {
- throw new SodiumException('key should be SODIUM_CRYPTO_KDF_KEYBYTES bytes');
- }
-
- $salt = ParagonIE_Sodium_Core_Util::store64_le($subkey_id);
- $state = self::crypto_generichash_init_salt_personal(
- $key,
- $subkey_len,
- $salt,
- $context
- );
- return self::crypto_generichash_final($state, $subkey_len);
- }
-
- /**
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_kdf_keygen()
- {
- return random_bytes(self::CRYPTO_KDF_KEYBYTES);
- }
-
- /**
- * Perform a key exchange, between a designated client and a server.
- *
- * Typically, you would designate one machine to be the client and the
- * other to be the server. The first two keys are what you'd expect for
- * scalarmult() below, but the latter two public keys don't swap places.
- *
- * | ALICE | BOB |
- * | Client | Server |
- * |--------------------------------|-------------------------------------|
- * | shared = crypto_kx( | shared = crypto_kx( |
- * | alice_sk, | bob_sk, | <- contextual
- * | bob_pk, | alice_pk, | <- contextual
- * | alice_pk, | alice_pk, | <----- static
- * | bob_pk | bob_pk | <----- static
- * | ) | ) |
- *
- * They are used along with the scalarmult product to generate a 256-bit
- * BLAKE2b hash unique to the client and server keys.
- *
- * @param string $my_secret
- * @param string $their_public
- * @param string $client_public
- * @param string $server_public
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_kx($my_secret, $their_public, $client_public, $server_public, $dontFallback = false)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($my_secret, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($their_public, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($client_public, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($server_public, 'string', 4);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($my_secret) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($their_public) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($client_public) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($server_public) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 4 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI() && !$dontFallback) {
- if (is_callable('sodium_crypto_kx')) {
- return (string) sodium_crypto_kx(
- $my_secret,
- $their_public,
- $client_public,
- $server_public
- );
- }
- }
- if (self::use_fallback('crypto_kx')) {
- return (string) call_user_func(
- '\\Sodium\\crypto_kx',
- $my_secret,
- $their_public,
- $client_public,
- $server_public
- );
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::keyExchange(
- $my_secret,
- $their_public,
- $client_public,
- $server_public
- );
- }
- return ParagonIE_Sodium_Crypto::keyExchange(
- $my_secret,
- $their_public,
- $client_public,
- $server_public
- );
- }
-
- /**
- * @param string $seed
- * @return string
- * @throws SodiumException
- */
- public static function crypto_kx_seed_keypair($seed)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($seed, 'string', 1);
-
- $seed = (string) $seed;
-
- if (ParagonIE_Sodium_Core_Util::strlen($seed) !== self::CRYPTO_KX_SEEDBYTES) {
- throw new SodiumException('seed must be SODIUM_CRYPTO_KX_SEEDBYTES bytes');
- }
-
- $sk = self::crypto_generichash($seed, '', self::CRYPTO_KX_SECRETKEYBYTES);
- $pk = self::crypto_scalarmult_base($sk);
- return $sk . $pk;
- }
-
- /**
- * @return string
- * @throws Exception
- */
- public static function crypto_kx_keypair()
- {
- $sk = self::randombytes_buf(self::CRYPTO_KX_SECRETKEYBYTES);
- $pk = self::crypto_scalarmult_base($sk);
- return $sk . $pk;
- }
-
- /**
- * @param string $keypair
- * @param string $serverPublicKey
- * @return array{0: string, 1: string}
- * @throws SodiumException
- */
- public static function crypto_kx_client_session_keys($keypair, $serverPublicKey)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($serverPublicKey, 'string', 2);
-
- $keypair = (string) $keypair;
- $serverPublicKey = (string) $serverPublicKey;
-
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_KX_KEYPAIRBYTES) {
- throw new SodiumException('keypair should be SODIUM_CRYPTO_KX_KEYPAIRBYTES bytes');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($serverPublicKey) !== self::CRYPTO_KX_PUBLICKEYBYTES) {
- throw new SodiumException('public keys must be SODIUM_CRYPTO_KX_PUBLICKEYBYTES bytes');
- }
-
- $sk = self::crypto_kx_secretkey($keypair);
- $pk = self::crypto_kx_publickey($keypair);
- $h = self::crypto_generichash_init(null, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
- self::crypto_generichash_update($h, self::crypto_scalarmult($sk, $serverPublicKey));
- self::crypto_generichash_update($h, $pk);
- self::crypto_generichash_update($h, $serverPublicKey);
- $sessionKeys = self::crypto_generichash_final($h, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
- return array(
- ParagonIE_Sodium_Core_Util::substr(
- $sessionKeys,
- 0,
- self::CRYPTO_KX_SESSIONKEYBYTES
- ),
- ParagonIE_Sodium_Core_Util::substr(
- $sessionKeys,
- self::CRYPTO_KX_SESSIONKEYBYTES,
- self::CRYPTO_KX_SESSIONKEYBYTES
- )
- );
- }
-
- /**
- * @param string $keypair
- * @param string $clientPublicKey
- * @return array{0: string, 1: string}
- * @throws SodiumException
- */
- public static function crypto_kx_server_session_keys($keypair, $clientPublicKey)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($clientPublicKey, 'string', 2);
-
- $keypair = (string) $keypair;
- $clientPublicKey = (string) $clientPublicKey;
-
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_KX_KEYPAIRBYTES) {
- throw new SodiumException('keypair should be SODIUM_CRYPTO_KX_KEYPAIRBYTES bytes');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($clientPublicKey) !== self::CRYPTO_KX_PUBLICKEYBYTES) {
- throw new SodiumException('public keys must be SODIUM_CRYPTO_KX_PUBLICKEYBYTES bytes');
- }
-
- $sk = self::crypto_kx_secretkey($keypair);
- $pk = self::crypto_kx_publickey($keypair);
- $h = self::crypto_generichash_init(null, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
- self::crypto_generichash_update($h, self::crypto_scalarmult($sk, $clientPublicKey));
- self::crypto_generichash_update($h, $clientPublicKey);
- self::crypto_generichash_update($h, $pk);
- $sessionKeys = self::crypto_generichash_final($h, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
- return array(
- ParagonIE_Sodium_Core_Util::substr(
- $sessionKeys,
- self::CRYPTO_KX_SESSIONKEYBYTES,
- self::CRYPTO_KX_SESSIONKEYBYTES
- ),
- ParagonIE_Sodium_Core_Util::substr(
- $sessionKeys,
- 0,
- self::CRYPTO_KX_SESSIONKEYBYTES
- )
- );
- }
-
- /**
- * @param string $kp
- * @return string
- * @throws SodiumException
- */
- public static function crypto_kx_secretkey($kp)
- {
- return ParagonIE_Sodium_Core_Util::substr(
- $kp,
- 0,
- self::CRYPTO_KX_SECRETKEYBYTES
- );
- }
-
- /**
- * @param string $kp
- * @return string
- * @throws SodiumException
- */
- public static function crypto_kx_publickey($kp)
- {
- return ParagonIE_Sodium_Core_Util::substr(
- $kp,
- self::CRYPTO_KX_SECRETKEYBYTES,
- self::CRYPTO_KX_PUBLICKEYBYTES
- );
- }
-
- /**
- * @param int $outlen
- * @param string $passwd
- * @param string $salt
- * @param int $opslimit
- * @param int $memlimit
- * @param int|null $alg
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $alg = null)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($outlen, 'int', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($salt, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 4);
- ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 5);
-
- if (self::useNewSodiumAPI()) {
- if (!is_null($alg)) {
- ParagonIE_Sodium_Core_Util::declareScalarType($alg, 'int', 6);
- return sodium_crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $alg);
- }
- return sodium_crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit);
- }
- if (self::use_fallback('crypto_pwhash')) {
- return (string) call_user_func('\\Sodium\\crypto_pwhash', $outlen, $passwd, $salt, $opslimit, $memlimit);
- }
- // This is the best we can do.
- throw new SodiumException(
- 'This is not implemented, as it is not possible to implement Argon2i with acceptable performance in pure-PHP'
- );
- }
-
- /**
- * !Exclusive to sodium_compat!
- *
- * This returns TRUE if the native crypto_pwhash API is available by libsodium.
- * This returns FALSE if only sodium_compat is available.
- *
- * @return bool
- */
- public static function crypto_pwhash_is_available()
- {
- if (self::useNewSodiumAPI()) {
- return true;
- }
- if (self::use_fallback('crypto_pwhash')) {
- return true;
- }
- return false;
- }
-
- /**
- * @param string $passwd
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_pwhash_str($passwd, $opslimit, $memlimit)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 3);
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_pwhash_str($passwd, $opslimit, $memlimit);
- }
- if (self::use_fallback('crypto_pwhash_str')) {
- return (string) call_user_func('\\Sodium\\crypto_pwhash_str', $passwd, $opslimit, $memlimit);
- }
- // This is the best we can do.
- throw new SodiumException(
- 'This is not implemented, as it is not possible to implement Argon2i with acceptable performance in pure-PHP'
- );
- }
-
- /**
- * Do we need to rehash this password?
- *
- * @param string $hash
- * @param int $opslimit
- * @param int $memlimit
- * @return bool
- * @throws SodiumException
- */
- public static function crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($hash, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 3);
-
- // Just grab the first 4 pieces.
- $pieces = explode('$', (string) $hash);
- $prefix = implode('$', array_slice($pieces, 0, 4));
-
- // Rebuild the expected header.
- /** @var int $ops */
- $ops = (int) $opslimit;
- /** @var int $mem */
- $mem = (int) $memlimit >> 10;
- $encoded = self::CRYPTO_PWHASH_STRPREFIX . 'v=19$m=' . $mem . ',t=' . $ops . ',p=1';
-
- // Do they match? If so, we don't need to rehash, so return false.
- return !ParagonIE_Sodium_Core_Util::hashEquals($encoded, $prefix);
- }
-
- /**
- * @param string $passwd
- * @param string $hash
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_pwhash_str_verify($passwd, $hash)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($hash, 'string', 2);
-
- if (self::useNewSodiumAPI()) {
- return (bool) sodium_crypto_pwhash_str_verify($passwd, $hash);
- }
- if (self::use_fallback('crypto_pwhash_str_verify')) {
- return (bool) call_user_func('\\Sodium\\crypto_pwhash_str_verify', $passwd, $hash);
- }
- // This is the best we can do.
- throw new SodiumException(
- 'This is not implemented, as it is not possible to implement Argon2i with acceptable performance in pure-PHP'
- );
- }
-
- /**
- * @param int $outlen
- * @param string $passwd
- * @param string $salt
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($outlen, 'int', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($salt, 'string', 3);
- ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 4);
- ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 5);
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_pwhash_scryptsalsa208sha256(
- (int) $outlen,
- (string) $passwd,
- (string) $salt,
- (int) $opslimit,
- (int) $memlimit
- );
- }
- if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256')) {
- return (string) call_user_func(
- '\\Sodium\\crypto_pwhash_scryptsalsa208sha256',
- (int) $outlen,
- (string) $passwd,
- (string) $salt,
- (int) $opslimit,
- (int) $memlimit
- );
- }
- // This is the best we can do.
- throw new SodiumException(
- 'This is not implemented, as it is not possible to implement Scrypt with acceptable performance in pure-PHP'
- );
- }
-
- /**
- * !Exclusive to sodium_compat!
- *
- * This returns TRUE if the native crypto_pwhash API is available by libsodium.
- * This returns FALSE if only sodium_compat is available.
- *
- * @return bool
- */
- public static function crypto_pwhash_scryptsalsa208sha256_is_available()
- {
- if (self::useNewSodiumAPI()) {
- return true;
- }
- if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256')) {
- return true;
- }
- return false;
- }
-
- /**
- * @param string $passwd
- * @param int $opslimit
- * @param int $memlimit
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 3);
-
- if (self::useNewSodiumAPI()) {
- return (string) sodium_crypto_pwhash_scryptsalsa208sha256_str(
- (string) $passwd,
- (int) $opslimit,
- (int) $memlimit
- );
- }
- if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256_str')) {
- return (string) call_user_func(
- '\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str',
- (string) $passwd,
- (int) $opslimit,
- (int) $memlimit
- );
- }
- // This is the best we can do.
- throw new SodiumException(
- 'This is not implemented, as it is not possible to implement Scrypt with acceptable performance in pure-PHP'
- );
- }
-
- /**
- * @param string $passwd
- * @param string $hash
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($hash, 'string', 2);
-
- if (self::useNewSodiumAPI()) {
- return (bool) sodium_crypto_pwhash_scryptsalsa208sha256_str_verify(
- (string) $passwd,
- (string) $hash
- );
- }
- if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256_str_verify')) {
- return (bool) call_user_func(
- '\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str_verify',
- (string) $passwd,
- (string) $hash
- );
- }
- // This is the best we can do.
- throw new SodiumException(
- 'This is not implemented, as it is not possible to implement Scrypt with acceptable performance in pure-PHP'
- );
- }
-
- /**
- * Calculate the shared secret between your secret key and your
- * recipient's public key.
- *
- * Algorithm: X25519 (ECDH over Curve25519)
- *
- * @param string $secretKey
- * @param string $publicKey
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_scalarmult($secretKey, $publicKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_scalarmult($secretKey, $publicKey);
- }
- if (self::use_fallback('crypto_scalarmult')) {
- return (string) call_user_func('\\Sodium\\crypto_scalarmult', $secretKey, $publicKey);
- }
-
- /* Output validation: Forbid all-zero keys */
- if (ParagonIE_Sodium_Core_Util::hashEquals($secretKey, str_repeat("\0", self::CRYPTO_BOX_SECRETKEYBYTES))) {
- throw new SodiumException('Zero secret key is not allowed');
- }
- if (ParagonIE_Sodium_Core_Util::hashEquals($publicKey, str_repeat("\0", self::CRYPTO_BOX_PUBLICKEYBYTES))) {
- throw new SodiumException('Zero public key is not allowed');
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::scalarmult($secretKey, $publicKey);
- }
- return ParagonIE_Sodium_Crypto::scalarmult($secretKey, $publicKey);
- }
-
- /**
- * Calculate an X25519 public key from an X25519 secret key.
- *
- * @param string $secretKey
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress TooFewArguments
- * @psalm-suppress MixedArgument
- */
- public static function crypto_scalarmult_base($secretKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_scalarmult_base($secretKey);
- }
- if (self::use_fallback('crypto_scalarmult_base')) {
- return (string) call_user_func('\\Sodium\\crypto_scalarmult_base', $secretKey);
- }
- if (ParagonIE_Sodium_Core_Util::hashEquals($secretKey, str_repeat("\0", self::CRYPTO_BOX_SECRETKEYBYTES))) {
- throw new SodiumException('Zero secret key is not allowed');
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::scalarmult_base($secretKey);
- }
- return ParagonIE_Sodium_Crypto::scalarmult_base($secretKey);
- }
-
- /**
- * Authenticated symmetric-key encryption.
- *
- * Algorithm: XSalsa20-Poly1305
- *
- * @param string $plaintext The message you're encrypting
- * @param string $nonce A Number to be used Once; must be 24 bytes
- * @param string $key Symmetric encryption key
- * @return string Ciphertext with Poly1305 MAC
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_secretbox($plaintext, $nonce, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_secretbox($plaintext, $nonce, $key);
- }
- if (self::use_fallback('crypto_secretbox')) {
- return (string) call_user_func('\\Sodium\\crypto_secretbox', $plaintext, $nonce, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretbox($plaintext, $nonce, $key);
- }
- return ParagonIE_Sodium_Crypto::secretbox($plaintext, $nonce, $key);
- }
-
- /**
- * Decrypts a message previously encrypted with crypto_secretbox().
- *
- * @param string $ciphertext Ciphertext with Poly1305 MAC
- * @param string $nonce A Number to be used Once; must be 24 bytes
- * @param string $key Symmetric encryption key
- * @return string Original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_secretbox_open($ciphertext, $nonce, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- /**
- * @psalm-suppress InvalidReturnStatement
- * @psalm-suppress FalsableReturnStatement
- */
- return sodium_crypto_secretbox_open($ciphertext, $nonce, $key);
- }
- if (self::use_fallback('crypto_secretbox_open')) {
- return call_user_func('\\Sodium\\crypto_secretbox_open', $ciphertext, $nonce, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretbox_open($ciphertext, $nonce, $key);
- }
- return ParagonIE_Sodium_Crypto::secretbox_open($ciphertext, $nonce, $key);
- }
-
- /**
- * Return a secure random key for use with crypto_secretbox
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_secretbox_keygen()
- {
- return random_bytes(self::CRYPTO_SECRETBOX_KEYBYTES);
- }
-
- /**
- * Authenticated symmetric-key encryption.
- *
- * Algorithm: XChaCha20-Poly1305
- *
- * @param string $plaintext The message you're encrypting
- * @param string $nonce A Number to be used Once; must be 24 bytes
- * @param string $key Symmetric encryption key
- * @return string Ciphertext with Poly1305 MAC
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_secretbox_xchacha20poly1305($plaintext, $nonce, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretbox_xchacha20poly1305($plaintext, $nonce, $key);
- }
- return ParagonIE_Sodium_Crypto::secretbox_xchacha20poly1305($plaintext, $nonce, $key);
- }
- /**
- * Decrypts a message previously encrypted with crypto_secretbox_xchacha20poly1305().
- *
- * @param string $ciphertext Ciphertext with Poly1305 MAC
- * @param string $nonce A Number to be used Once; must be 24 bytes
- * @param string $key Symmetric encryption key
- * @return string Original plaintext message
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
- }
-
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key);
- }
- return ParagonIE_Sodium_Crypto::secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key);
- }
-
- /**
- * @param string $key
- * @return array<int, string> Returns a state and a header.
- * @throws Exception
- * @throws SodiumException
- */
- public static function crypto_secretstream_xchacha20poly1305_init_push($key)
- {
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_init_push($key);
- }
- return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_init_push($key);
- }
-
- /**
- * @param string $header
- * @param string $key
- * @return string Returns a state.
- * @throws Exception
- */
- public static function crypto_secretstream_xchacha20poly1305_init_pull($header, $key)
- {
- if (ParagonIE_Sodium_Core_Util::strlen($header) < self::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES) {
- throw new SodiumException(
- 'header size should be SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES bytes'
- );
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_init_pull($key, $header);
- }
- return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_init_pull($key, $header);
- }
-
- /**
- * @param string $state
- * @param string $msg
- * @param string $aad
- * @param int $tag
- * @return string
- * @throws SodiumException
- */
- public static function crypto_secretstream_xchacha20poly1305_push(&$state, $msg, $aad = '', $tag = 0)
- {
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_push(
- $state,
- $msg,
- $aad,
- $tag
- );
- }
- return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_push(
- $state,
- $msg,
- $aad,
- $tag
- );
- }
-
- /**
- * @param string $state
- * @param string $msg
- * @param string $aad
- * @return bool|array{0: string, 1: int}
- * @throws SodiumException
- */
- public static function crypto_secretstream_xchacha20poly1305_pull(&$state, $msg, $aad = '')
- {
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_pull(
- $state,
- $msg,
- $aad
- );
- }
- return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_pull(
- $state,
- $msg,
- $aad
- );
- }
-
- /**
- * @return string
- * @throws Exception
- */
- public static function crypto_secretstream_xchacha20poly1305_keygen()
- {
- return random_bytes(self::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES);
- }
-
- /**
- * @param string $state
- * @return void
- * @throws SodiumException
- */
- public static function crypto_secretstream_xchacha20poly1305_rekey(&$state)
- {
- if (PHP_INT_SIZE === 4) {
- ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_rekey($state);
- } else {
- ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_rekey($state);
- }
- }
-
- /**
- * Calculates a SipHash-2-4 hash of a message for a given key.
- *
- * @param string $message Input message
- * @param string $key SipHash-2-4 key
- * @return string Hash
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_shorthash($message, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SHORTHASH_KEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SHORTHASH_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_shorthash($message, $key);
- }
- if (self::use_fallback('crypto_shorthash')) {
- return (string) call_user_func('\\Sodium\\crypto_shorthash', $message, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_SipHash::sipHash24($message, $key);
- }
- return ParagonIE_Sodium_Core_SipHash::sipHash24($message, $key);
- }
-
- /**
- * Return a secure random key for use with crypto_shorthash
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_shorthash_keygen()
- {
- return random_bytes(self::CRYPTO_SHORTHASH_KEYBYTES);
- }
-
- /**
- * Returns a signed message. You probably want crypto_sign_detached()
- * instead, which only returns the signature.
- *
- * Algorithm: Ed25519 (EdDSA over Curve25519)
- *
- * @param string $message Message to be signed.
- * @param string $secretKey Secret signing key.
- * @return string Signed message (signature is prefixed).
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_sign($message, $secretKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SIGN_SECRETKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign($message, $secretKey);
- }
- if (self::use_fallback('crypto_sign')) {
- return (string) call_user_func('\\Sodium\\crypto_sign', $message, $secretKey);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::sign($message, $secretKey);
- }
- return ParagonIE_Sodium_Crypto::sign($message, $secretKey);
- }
-
- /**
- * Validates a signed message then returns the message.
- *
- * @param string $signedMessage A signed message
- * @param string $publicKey A public key
- * @return string The original message (if the signature is
- * valid for this public key)
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress MixedReturnStatement
- */
- public static function crypto_sign_open($signedMessage, $publicKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($signedMessage, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($signedMessage) < self::CRYPTO_SIGN_BYTES) {
- throw new SodiumException('Argument 1 must be at least CRYPTO_SIGN_BYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_SIGN_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SIGN_PUBLICKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- /**
- * @psalm-suppress InvalidReturnStatement
- * @psalm-suppress FalsableReturnStatement
- */
- return sodium_crypto_sign_open($signedMessage, $publicKey);
- }
- if (self::use_fallback('crypto_sign_open')) {
- return call_user_func('\\Sodium\\crypto_sign_open', $signedMessage, $publicKey);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::sign_open($signedMessage, $publicKey);
- }
- return ParagonIE_Sodium_Crypto::sign_open($signedMessage, $publicKey);
- }
-
- /**
- * Generate a new random Ed25519 keypair.
- *
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function crypto_sign_keypair()
- {
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_keypair();
- }
- if (self::use_fallback('crypto_sign_keypair')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_keypair');
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_Ed25519::keypair();
- }
- return ParagonIE_Sodium_Core_Ed25519::keypair();
- }
-
- /**
- * @param string $sk
- * @param string $pk
- * @return string
- * @throws SodiumException
- */
- public static function crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($sk, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($pk, 'string', 1);
- $sk = (string) $sk;
- $pk = (string) $pk;
-
- if (ParagonIE_Sodium_Core_Util::strlen($sk) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
- throw new SodiumException('secretkey should be SODIUM_CRYPTO_SIGN_SECRETKEYBYTES bytes');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($pk) !== self::CRYPTO_SIGN_PUBLICKEYBYTES) {
- throw new SodiumException('publickey should be SODIUM_CRYPTO_SIGN_PUBLICKEYBYTES bytes');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk);
- }
- return $sk . $pk;
- }
-
- /**
- * Generate an Ed25519 keypair from a seed.
- *
- * @param string $seed Input seed
- * @return string Keypair
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_seed_keypair($seed)
- {
- ParagonIE_Sodium_Core_Util::declareScalarType($seed, 'string', 1);
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_seed_keypair($seed);
- }
- if (self::use_fallback('crypto_sign_keypair')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_seed_keypair', $seed);
- }
- $publicKey = '';
- $secretKey = '';
- if (PHP_INT_SIZE === 4) {
- ParagonIE_Sodium_Core32_Ed25519::seed_keypair($publicKey, $secretKey, $seed);
- } else {
- ParagonIE_Sodium_Core_Ed25519::seed_keypair($publicKey, $secretKey, $seed);
- }
- return $secretKey . $publicKey;
- }
-
- /**
- * Extract an Ed25519 public key from an Ed25519 keypair.
- *
- * @param string $keypair Keypair
- * @return string Public key
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_publickey($keypair)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_SIGN_KEYPAIRBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_SIGN_KEYPAIRBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_publickey($keypair);
- }
- if (self::use_fallback('crypto_sign_publickey')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_publickey', $keypair);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_Ed25519::publickey($keypair);
- }
- return ParagonIE_Sodium_Core_Ed25519::publickey($keypair);
- }
-
- /**
- * Calculate an Ed25519 public key from an Ed25519 secret key.
- *
- * @param string $secretKey Your Ed25519 secret key
- * @return string The corresponding Ed25519 public key
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_publickey_from_secretkey($secretKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_SIGN_SECRETKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_publickey_from_secretkey($secretKey);
- }
- if (self::use_fallback('crypto_sign_publickey_from_secretkey')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_publickey_from_secretkey', $secretKey);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_Ed25519::publickey_from_secretkey($secretKey);
- }
- return ParagonIE_Sodium_Core_Ed25519::publickey_from_secretkey($secretKey);
- }
-
- /**
- * Extract an Ed25519 secret key from an Ed25519 keypair.
- *
- * @param string $keypair Keypair
- * @return string Secret key
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_secretkey($keypair)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_SIGN_KEYPAIRBYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_SIGN_KEYPAIRBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_secretkey($keypair);
- }
- if (self::use_fallback('crypto_sign_secretkey')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_secretkey', $keypair);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_Ed25519::secretkey($keypair);
- }
- return ParagonIE_Sodium_Core_Ed25519::secretkey($keypair);
- }
-
- /**
- * Calculate the Ed25519 signature of a message and return ONLY the signature.
- *
- * Algorithm: Ed25519 (EdDSA over Curve25519)
- *
- * @param string $message Message to be signed
- * @param string $secretKey Secret signing key
- * @return string Digital signature
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_detached($message, $secretKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 2);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SIGN_SECRETKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_detached($message, $secretKey);
- }
- if (self::use_fallback('crypto_sign_detached')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_detached', $message, $secretKey);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::sign_detached($message, $secretKey);
- }
- return ParagonIE_Sodium_Crypto::sign_detached($message, $secretKey);
- }
-
- /**
- * Verify the Ed25519 signature of a message.
- *
- * @param string $signature Digital sginature
- * @param string $message Message to be verified
- * @param string $publicKey Public key
- * @return bool TRUE if this signature is good for this public key;
- * FALSE otherwise
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_verify_detached($signature, $message, $publicKey)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($signature, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($signature) !== self::CRYPTO_SIGN_BYTES) {
- throw new SodiumException('Argument 1 must be CRYPTO_SIGN_BYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_SIGN_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_SIGN_PUBLICKEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_sign_verify_detached($signature, $message, $publicKey);
- }
- if (self::use_fallback('crypto_sign_verify_detached')) {
- return (bool) call_user_func(
- '\\Sodium\\crypto_sign_verify_detached',
- $signature,
- $message,
- $publicKey
- );
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Crypto32::sign_verify_detached($signature, $message, $publicKey);
- }
- return ParagonIE_Sodium_Crypto::sign_verify_detached($signature, $message, $publicKey);
- }
-
- /**
- * Convert an Ed25519 public key to a Curve25519 public key
- *
- * @param string $pk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_ed25519_pk_to_curve25519($pk)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($pk, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($pk) < self::CRYPTO_SIGN_PUBLICKEYBYTES) {
- throw new SodiumException('Argument 1 must be at least CRYPTO_SIGN_PUBLICKEYBYTES long.');
- }
- if (self::useNewSodiumAPI()) {
- if (is_callable('crypto_sign_ed25519_pk_to_curve25519')) {
- return (string) sodium_crypto_sign_ed25519_pk_to_curve25519($pk);
- }
- }
- if (self::use_fallback('crypto_sign_ed25519_pk_to_curve25519')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_ed25519_pk_to_curve25519', $pk);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_Ed25519::pk_to_curve25519($pk);
- }
- return ParagonIE_Sodium_Core_Ed25519::pk_to_curve25519($pk);
- }
-
- /**
- * Convert an Ed25519 secret key to a Curve25519 secret key
- *
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_sign_ed25519_sk_to_curve25519($sk)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($sk, 'string', 1);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($sk) < self::CRYPTO_SIGN_SEEDBYTES) {
- throw new SodiumException('Argument 1 must be at least CRYPTO_SIGN_SEEDBYTES long.');
- }
- if (self::useNewSodiumAPI()) {
- if (is_callable('crypto_sign_ed25519_sk_to_curve25519')) {
- return sodium_crypto_sign_ed25519_sk_to_curve25519($sk);
- }
- }
- if (self::use_fallback('crypto_sign_ed25519_sk_to_curve25519')) {
- return (string) call_user_func('\\Sodium\\crypto_sign_ed25519_sk_to_curve25519', $sk);
- }
-
- $h = hash('sha512', ParagonIE_Sodium_Core_Util::substr($sk, 0, 32), true);
- $h[0] = ParagonIE_Sodium_Core_Util::intToChr(
- ParagonIE_Sodium_Core_Util::chrToInt($h[0]) & 248
- );
- $h[31] = ParagonIE_Sodium_Core_Util::intToChr(
- (ParagonIE_Sodium_Core_Util::chrToInt($h[31]) & 127) | 64
- );
- return ParagonIE_Sodium_Core_Util::substr($h, 0, 32);
- }
-
- /**
- * Expand a key and nonce into a keystream of pseudorandom bytes.
- *
- * @param int $len Number of bytes desired
- * @param string $nonce Number to be used Once; must be 24 bytes
- * @param string $key XSalsa20 key
- * @return string Pseudorandom stream that can be XORed with messages
- * to provide encryption (but not authentication; see
- * Poly1305 or crypto_auth() for that, which is not
- * optional for security)
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_stream($len, $nonce, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($len, 'int', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_STREAM_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_stream($len, $nonce, $key);
- }
- if (self::use_fallback('crypto_stream')) {
- return (string) call_user_func('\\Sodium\\crypto_stream', $len, $nonce, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_XSalsa20::xsalsa20($len, $nonce, $key);
- }
- return ParagonIE_Sodium_Core_XSalsa20::xsalsa20($len, $nonce, $key);
- }
-
- /**
- * DANGER! UNAUTHENTICATED ENCRYPTION!
- *
- * Unless you are following expert advice, do not used this feature.
- *
- * Algorithm: XSalsa20
- *
- * This DOES NOT provide ciphertext integrity.
- *
- * @param string $message Plaintext message
- * @param string $nonce Number to be used Once; must be 24 bytes
- * @param string $key Encryption key
- * @return string Encrypted text which is vulnerable to chosen-
- * ciphertext attacks unless you implement some
- * other mitigation to the ciphertext (i.e.
- * Encrypt then MAC)
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_stream_xor($message, $nonce, $key)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI()) {
- return sodium_crypto_stream_xor($message, $nonce, $key);
- }
- if (self::use_fallback('crypto_stream_xor')) {
- return (string) call_user_func('\\Sodium\\crypto_stream_xor', $message, $nonce, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_XSalsa20::xsalsa20_xor($message, $nonce, $key);
- }
- return ParagonIE_Sodium_Core_XSalsa20::xsalsa20_xor($message, $nonce, $key);
- }
-
- /**
- * Return a secure random key for use with crypto_stream
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_stream_keygen()
- {
- return random_bytes(self::CRYPTO_STREAM_KEYBYTES);
- }
-
-
- /**
- * Expand a key and nonce into a keystream of pseudorandom bytes.
- *
- * @param int $len Number of bytes desired
- * @param string $nonce Number to be used Once; must be 24 bytes
- * @param string $key XChaCha20 key
- * @param bool $dontFallback
- * @return string Pseudorandom stream that can be XORed with messages
- * to provide encryption (but not authentication; see
- * Poly1305 or crypto_auth() for that, which is not
- * optional for security)
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_stream_xchacha20($len, $nonce, $key, $dontFallback = false)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($len, 'int', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_XCHACHA20_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_XCHACHA20_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_XCHACHA20_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_STREAM_XCHACHA20_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_stream_xchacha20($len, $nonce, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_XChaCha20::stream($len, $nonce, $key);
- }
- return ParagonIE_Sodium_Core_XChaCha20::stream($len, $nonce, $key);
- }
-
- /**
- * DANGER! UNAUTHENTICATED ENCRYPTION!
- *
- * Unless you are following expert advice, do not used this feature.
- *
- * Algorithm: XChaCha20
- *
- * This DOES NOT provide ciphertext integrity.
- *
- * @param string $message Plaintext message
- * @param string $nonce Number to be used Once; must be 24 bytes
- * @param string $key Encryption key
- * @return string Encrypted text which is vulnerable to chosen-
- * ciphertext attacks unless you implement some
- * other mitigation to the ciphertext (i.e.
- * Encrypt then MAC)
- * @param bool $dontFallback
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function crypto_stream_xchacha20_xor($message, $nonce, $key, $dontFallback = false)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
- ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
-
- /* Input validation: */
- if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_XCHACHA20_NONCEBYTES) {
- throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_XCHACHA20_NONCEBYTES long.');
- }
- if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_XCHACHA20_KEYBYTES) {
- throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_XCHACHA20_KEYBYTES long.');
- }
-
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_stream_xchacha20_xor($message, $nonce, $key);
- }
- if (PHP_INT_SIZE === 4) {
- return ParagonIE_Sodium_Core32_XChaCha20::streamXorIc($message, $nonce, $key);
- }
- return ParagonIE_Sodium_Core_XChaCha20::streamXorIc($message, $nonce, $key);
- }
-
- /**
- * Return a secure random key for use with crypto_stream_xchacha20
- *
- * @return string
- * @throws Exception
- * @throws Error
- */
- public static function crypto_stream_xchacha20_keygen()
- {
- return random_bytes(self::CRYPTO_STREAM_XCHACHA20_KEYBYTES);
- }
-
- /**
- * Cache-timing-safe implementation of hex2bin().
- *
- * @param string $string Hexadecimal string
- * @return string Raw binary string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress TooFewArguments
- * @psalm-suppress MixedArgument
- */
- public static function hex2bin($string)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($string, 'string', 1);
-
- if (self::useNewSodiumAPI()) {
- if (is_callable('sodium_hex2bin')) {
- return (string) sodium_hex2bin($string);
- }
- }
- if (self::use_fallback('hex2bin')) {
- return (string) call_user_func('\\Sodium\\hex2bin', $string);
- }
- return ParagonIE_Sodium_Core_Util::hex2bin($string);
- }
-
- /**
- * Increase a string (little endian)
- *
- * @param string $var
- *
- * @return void
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function increment(&$var)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($var, 'string', 1);
-
- if (self::useNewSodiumAPI()) {
- sodium_increment($var);
- return;
- }
- if (self::use_fallback('increment')) {
- $func = '\\Sodium\\increment';
- $func($var);
- return;
- }
-
- $len = ParagonIE_Sodium_Core_Util::strlen($var);
- $c = 1;
- $copy = '';
- for ($i = 0; $i < $len; ++$i) {
- $c += ParagonIE_Sodium_Core_Util::chrToInt(
- ParagonIE_Sodium_Core_Util::substr($var, $i, 1)
- );
- $copy .= ParagonIE_Sodium_Core_Util::intToChr($c);
- $c >>= 8;
- }
- $var = $copy;
- }
-
- /**
- * @param string $str
- * @return bool
- *
- * @throws SodiumException
- */
- public static function is_zero($str)
- {
- $d = 0;
- for ($i = 0; $i < 32; ++$i) {
- $d |= ParagonIE_Sodium_Core_Util::chrToInt($str[$i]);
- }
- return ((($d - 1) >> 31) & 1) === 1;
- }
-
- /**
- * The equivalent to the libsodium minor version we aim to be compatible
- * with (sans pwhash and memzero).
- *
- * @return int
- */
- public static function library_version_major()
- {
- if (self::useNewSodiumAPI() && defined('SODIUM_LIBRARY_MAJOR_VERSION')) {
- return SODIUM_LIBRARY_MAJOR_VERSION;
- }
- if (self::use_fallback('library_version_major')) {
- /** @psalm-suppress UndefinedFunction */
- return (int) call_user_func('\\Sodium\\library_version_major');
- }
- return self::LIBRARY_VERSION_MAJOR;
- }
-
- /**
- * The equivalent to the libsodium minor version we aim to be compatible
- * with (sans pwhash and memzero).
- *
- * @return int
- */
- public static function library_version_minor()
- {
- if (self::useNewSodiumAPI() && defined('SODIUM_LIBRARY_MINOR_VERSION')) {
- return SODIUM_LIBRARY_MINOR_VERSION;
- }
- if (self::use_fallback('library_version_minor')) {
- /** @psalm-suppress UndefinedFunction */
- return (int) call_user_func('\\Sodium\\library_version_minor');
- }
- return self::LIBRARY_VERSION_MINOR;
- }
-
- /**
- * Compare two strings.
- *
- * @param string $left
- * @param string $right
- * @return int
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- */
- public static function memcmp($left, $right)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($left, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($right, 'string', 2);
-
- if (self::useNewSodiumAPI()) {
- return sodium_memcmp($left, $right);
- }
- if (self::use_fallback('memcmp')) {
- return (int) call_user_func('\\Sodium\\memcmp', $left, $right);
- }
- /** @var string $left */
- /** @var string $right */
- return ParagonIE_Sodium_Core_Util::memcmp($left, $right);
- }
-
- /**
- * It's actually not possible to zero memory buffers in PHP. You need the
- * native library for that.
- *
- * @param string|null $var
- * @param-out string|null $var
- *
- * @return void
- * @throws SodiumException (Unless libsodium is installed)
- * @throws TypeError
- * @psalm-suppress TooFewArguments
- */
- public static function memzero(&$var)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($var, 'string', 1);
-
- if (self::useNewSodiumAPI()) {
- /** @psalm-suppress MixedArgument */
- sodium_memzero($var);
- return;
- }
- if (self::use_fallback('memzero')) {
- $func = '\\Sodium\\memzero';
- $func($var);
- if ($var === null) {
- return;
- }
- }
- // This is the best we can do.
- throw new SodiumException(
- 'This is not implemented in sodium_compat, as it is not possible to securely wipe memory from PHP. ' .
- 'To fix this error, make sure libsodium is installed and the PHP extension is enabled.'
- );
- }
-
- /**
- * @param string $unpadded
- * @param int $blockSize
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function pad($unpadded, $blockSize, $dontFallback = false)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($unpadded, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($blockSize, 'int', 2);
-
- $unpadded = (string) $unpadded;
- $blockSize = (int) $blockSize;
-
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return (string) sodium_pad($unpadded, $blockSize);
- }
-
- if ($blockSize <= 0) {
- throw new SodiumException(
- 'block size cannot be less than 1'
- );
- }
- $unpadded_len = ParagonIE_Sodium_Core_Util::strlen($unpadded);
- $xpadlen = ($blockSize - 1);
- if (($blockSize & ($blockSize - 1)) === 0) {
- $xpadlen -= $unpadded_len & ($blockSize - 1);
- } else {
- $xpadlen -= $unpadded_len % $blockSize;
- }
-
- $xpadded_len = $unpadded_len + $xpadlen;
- $padded = str_repeat("\0", $xpadded_len - 1);
- if ($unpadded_len > 0) {
- $st = 1;
- $i = 0;
- $k = $unpadded_len;
- for ($j = 0; $j <= $xpadded_len; ++$j) {
- $i = (int) $i;
- $k = (int) $k;
- $st = (int) $st;
- if ($j >= $unpadded_len) {
- $padded[$j] = "\0";
- } else {
- $padded[$j] = $unpadded[$j];
- }
- /** @var int $k */
- $k -= $st;
- $st = (int) (~(
- (
- (
- ($k >> 48)
- |
- ($k >> 32)
- |
- ($k >> 16)
- |
- $k
- ) - 1
- ) >> 16
- )
- ) & 1;
- $i += $st;
- }
- }
-
- $mask = 0;
- $tail = $xpadded_len;
- for ($i = 0; $i < $blockSize; ++$i) {
- # barrier_mask = (unsigned char)
- # (((i ^ xpadlen) - 1U) >> ((sizeof(size_t) - 1U) * CHAR_BIT));
- $barrier_mask = (($i ^ $xpadlen) -1) >> ((PHP_INT_SIZE << 3) - 1);
- # tail[-i] = (tail[-i] & mask) | (0x80 & barrier_mask);
- $padded[$tail - $i] = ParagonIE_Sodium_Core_Util::intToChr(
- (ParagonIE_Sodium_Core_Util::chrToInt($padded[$tail - $i]) & $mask)
- |
- (0x80 & $barrier_mask)
- );
- # mask |= barrier_mask;
- $mask |= $barrier_mask;
- }
- return $padded;
- }
-
- /**
- * @param string $padded
- * @param int $blockSize
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function unpad($padded, $blockSize, $dontFallback = false)
- {
- /* Type checks: */
- ParagonIE_Sodium_Core_Util::declareScalarType($padded, 'string', 1);
- ParagonIE_Sodium_Core_Util::declareScalarType($blockSize, 'int', 2);
-
- $padded = (string) $padded;
- $blockSize = (int) $blockSize;
-
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return (string) sodium_unpad($padded, $blockSize);
- }
- if ($blockSize <= 0) {
- throw new SodiumException('block size cannot be less than 1');
- }
- $padded_len = ParagonIE_Sodium_Core_Util::strlen($padded);
- if ($padded_len < $blockSize) {
- throw new SodiumException('invalid padding');
- }
-
- # tail = &padded[padded_len - 1U];
- $tail = $padded_len - 1;
-
- $acc = 0;
- $valid = 0;
- $pad_len = 0;
-
- $found = 0;
- for ($i = 0; $i < $blockSize; ++$i) {
- # c = tail[-i];
- $c = ParagonIE_Sodium_Core_Util::chrToInt($padded[$tail - $i]);
-
- # is_barrier =
- # (( (acc - 1U) & (pad_len - 1U) & ((c ^ 0x80) - 1U) ) >> 8) & 1U;
- $is_barrier = (
- (
- ($acc - 1) & ($pad_len - 1) & (($c ^ 80) - 1)
- ) >> 7
- ) & 1;
- $is_barrier &= ~$found;
- $found |= $is_barrier;
-
- # acc |= c;
- $acc |= $c;
-
- # pad_len |= i & (1U + ~is_barrier);
- $pad_len |= $i & (1 + ~$is_barrier);
-
- # valid |= (unsigned char) is_barrier;
- $valid |= ($is_barrier & 0xff);
- }
- # unpadded_len = padded_len - 1U - pad_len;
- $unpadded_len = $padded_len - 1 - $pad_len;
- if ($valid !== 1) {
- throw new SodiumException('invalid padding');
- }
- return ParagonIE_Sodium_Core_Util::substr($padded, 0, $unpadded_len);
- }
-
- /**
- * Will sodium_compat run fast on the current hardware and PHP configuration?
- *
- * @return bool
- */
- public static function polyfill_is_fast()
- {
- if (extension_loaded('sodium')) {
- return true;
- }
- if (extension_loaded('libsodium')) {
- return true;
- }
- return PHP_INT_SIZE === 8;
- }
-
- /**
- * Generate a string of bytes from the kernel's CSPRNG.
- * Proudly uses /dev/urandom (if getrandom(2) is not available).
- *
- * @param int $numBytes
- * @return string
- * @throws Exception
- * @throws TypeError
- */
- public static function randombytes_buf($numBytes)
- {
- /* Type checks: */
- if (!is_int($numBytes)) {
- if (is_numeric($numBytes)) {
- $numBytes = (int) $numBytes;
- } else {
- throw new TypeError(
- 'Argument 1 must be an integer, ' . gettype($numBytes) . ' given.'
- );
- }
- }
- if (self::use_fallback('randombytes_buf')) {
- return (string) call_user_func('\\Sodium\\randombytes_buf', $numBytes);
- }
- return random_bytes($numBytes);
- }
-
- /**
- * Generate an integer between 0 and $range (non-inclusive).
- *
- * @param int $range
- * @return int
- * @throws Exception
- * @throws Error
- * @throws TypeError
- */
- public static function randombytes_uniform($range)
- {
- /* Type checks: */
- if (!is_int($range)) {
- if (is_numeric($range)) {
- $range = (int) $range;
- } else {
- throw new TypeError(
- 'Argument 1 must be an integer, ' . gettype($range) . ' given.'
- );
- }
- }
- if (self::use_fallback('randombytes_uniform')) {
- return (int) call_user_func('\\Sodium\\randombytes_uniform', $range);
- }
- return random_int(0, $range - 1);
- }
-
- /**
- * Generate a random 16-bit integer.
- *
- * @return int
- * @throws Exception
- * @throws Error
- * @throws TypeError
- */
- public static function randombytes_random16()
- {
- if (self::use_fallback('randombytes_random16')) {
- return (int) call_user_func('\\Sodium\\randombytes_random16');
- }
- return random_int(0, 65535);
- }
-
- /**
- * @param string $p
- * @param bool $dontFallback
- * @return bool
- * @throws SodiumException
- */
- public static function ristretto255_is_valid_point($p, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_is_valid_point($p);
- }
- try {
- $r = ParagonIE_Sodium_Core_Ristretto255::ristretto255_frombytes($p);
- return $r['res'] === 0 &&
- ParagonIE_Sodium_Core_Ristretto255::ristretto255_point_is_canonical($p) === 1;
- } catch (SodiumException $ex) {
- if ($ex->getMessage() === 'S is not canonical') {
- return false;
- }
- throw $ex;
- }
- }
-
- /**
- * @param string $p
- * @param string $q
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_add($p, $q, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_add($p, $q);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_add($p, $q);
- }
-
- /**
- * @param string $p
- * @param string $q
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_sub($p, $q, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_sub($p, $q);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_sub($p, $q);
- }
-
- /**
- * @param string $r
- * @param bool $dontFallback
- * @return string
- *
- * @throws SodiumException
- */
- public static function ristretto255_from_hash($r, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_from_hash($r);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_from_hash($r);
- }
-
- /**
- * @param bool $dontFallback
- * @return string
- *
- * @throws SodiumException
- */
- public static function ristretto255_random($dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_random();
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_random();
- }
-
- /**
- * @param bool $dontFallback
- * @return string
- *
- * @throws SodiumException
- */
- public static function ristretto255_scalar_random($dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_random();
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_random();
- }
-
- /**
- * @param string $s
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_invert($s, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_invert($s);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_invert($s);
- }
- /**
- * @param string $s
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_negate($s, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_negate($s);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_negate($s);
- }
-
- /**
- * @param string $s
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_complement($s, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_complement($s);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_complement($s);
- }
-
- /**
- * @param string $x
- * @param string $y
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_add($x, $y, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_add($x, $y);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_add($x, $y);
- }
-
- /**
- * @param string $x
- * @param string $y
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_sub($x, $y, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_sub($x, $y);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_sub($x, $y);
- }
-
- /**
- * @param string $x
- * @param string $y
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_mul($x, $y, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_mul($x, $y);
- }
- return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_mul($x, $y);
- }
-
- /**
- * @param string $n
- * @param string $p
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function scalarmult_ristretto255($n, $p, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_scalarmult_ristretto255($n, $p);
- }
- return ParagonIE_Sodium_Core_Ristretto255::scalarmult_ristretto255($n, $p);
- }
-
- /**
- * @param string $n
- * @param string $p
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function scalarmult_ristretto255_base($n, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_scalarmult_ristretto255_base($n);
- }
- return ParagonIE_Sodium_Core_Ristretto255::scalarmult_ristretto255_base($n);
- }
-
- /**
- * @param string $s
- * @param bool $dontFallback
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_reduce($s, $dontFallback = false)
- {
- if (self::useNewSodiumAPI() && !$dontFallback) {
- return sodium_crypto_core_ristretto255_scalar_reduce($s);
- }
- return ParagonIE_Sodium_Core_Ristretto255::sc_reduce($s);
- }
-
- /**
- * Runtime testing method for 32-bit platforms.
- *
- * Usage: If runtime_speed_test() returns FALSE, then our 32-bit
- * implementation is to slow to use safely without risking timeouts.
- * If this happens, install sodium from PECL to get acceptable
- * performance.
- *
- * @param int $iterations Number of multiplications to attempt
- * @param int $maxTimeout Milliseconds
- * @return bool TRUE if we're fast enough, FALSE is not
- * @throws SodiumException
- */
- public static function runtime_speed_test($iterations, $maxTimeout)
- {
- if (self::polyfill_is_fast()) {
- return true;
- }
- /** @var float $end */
- $end = 0.0;
- /** @var float $start */
- $start = microtime(true);
- /** @var ParagonIE_Sodium_Core32_Int64 $a */
- $a = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));
- for ($i = 0; $i < $iterations; ++$i) {
- /** @var ParagonIE_Sodium_Core32_Int64 $b */
- $b = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));
- $a->mulInt64($b);
- }
- /** @var float $end */
- $end = microtime(true);
- /** @var int $diff */
- $diff = (int) ceil(($end - $start) * 1000);
- return $diff < $maxTimeout;
- }
-
- /**
- * Add two numbers (little-endian unsigned), storing the value in the first
- * parameter.
- *
- * This mutates $val.
- *
- * @param string $val
- * @param string $addv
- * @return void
- * @throws SodiumException
- */
- public static function sub(&$val, $addv)
- {
- $val_len = ParagonIE_Sodium_Core_Util::strlen($val);
- $addv_len = ParagonIE_Sodium_Core_Util::strlen($addv);
- if ($val_len !== $addv_len) {
- throw new SodiumException('values must have the same length');
- }
- $A = ParagonIE_Sodium_Core_Util::stringToIntArray($val);
- $B = ParagonIE_Sodium_Core_Util::stringToIntArray($addv);
-
- $c = 0;
- for ($i = 0; $i < $val_len; $i++) {
- $c = ($A[$i] - $B[$i] - $c);
- $A[$i] = ($c & 0xff);
- $c = ($c >> 8) & 1;
- }
- $val = ParagonIE_Sodium_Core_Util::intArrayToString($A);
- }
-
- /**
- * This emulates libsodium's version_string() function, except ours is
- * prefixed with 'polyfill-'.
- *
- * @return string
- * @psalm-suppress MixedInferredReturnType
- * @psalm-suppress UndefinedFunction
- */
- public static function version_string()
- {
- if (self::useNewSodiumAPI()) {
- return (string) sodium_version_string();
- }
- if (self::use_fallback('version_string')) {
- return (string) call_user_func('\\Sodium\\version_string');
- }
- return (string) self::VERSION_STRING;
- }
-
- /**
- * Should we use the libsodium core function instead?
- * This is always a good idea, if it's available. (Unless we're in the
- * middle of running our unit test suite.)
- *
- * If ext/libsodium is available, use it. Return TRUE.
- * Otherwise, we have to use the code provided herein. Return FALSE.
- *
- * @param string $sodium_func_name
- *
- * @return bool
- */
- protected static function use_fallback($sodium_func_name = '')
- {
- static $res = null;
- if ($res === null) {
- $res = extension_loaded('libsodium') && PHP_VERSION_ID >= 50300;
- }
- if ($res === false) {
- // No libsodium installed
- return false;
- }
- if (self::$disableFallbackForUnitTests) {
- // Don't fallback. Use the PHP implementation.
- return false;
- }
- if (!empty($sodium_func_name)) {
- return is_callable('\\Sodium\\' . $sodium_func_name);
- }
- return true;
- }
-
- /**
- * Libsodium as implemented in PHP 7.2
- * and/or ext/sodium (via PECL)
- *
- * @ref https://wiki.php.net/rfc/libsodium
- * @return bool
- */
- protected static function useNewSodiumAPI()
- {
- static $res = null;
- if ($res === null) {
- $res = PHP_VERSION_ID >= 70000 && extension_loaded('sodium');
- }
- if (self::$disableFallbackForUnitTests) {
- // Don't fallback. Use the PHP implementation.
- return false;
- }
- return (bool) $res;
- }
-}
+<?php
+
+/**
+ * Libsodium compatibility layer
+ *
+ * This is the only class you should be interfacing with, as a user of
+ * sodium_compat.
+ *
+ * If the PHP extension for libsodium is installed, it will always use that
+ * instead of our implementations. You get better performance and stronger
+ * guarantees against side-channels that way.
+ *
+ * However, if your users don't have the PHP extension installed, we offer a
+ * compatible interface here. It will give you the correct results as if the
+ * PHP extension was installed. It won't be as fast, of course.
+ *
+ * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION *
+ * *
+ * Until audited, this is probably not safe to use! DANGER WILL ROBINSON *
+ * *
+ * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION * CAUTION *
+ */
+
+if (class_exists('ParagonIE_Sodium_Compat', false)) {
+ return;
+}
+
+class ParagonIE_Sodium_Compat
+{
+ /**
+ * This parameter prevents the use of the PECL extension.
+ * It should only be used for unit testing.
+ *
+ * @var bool
+ */
+ public static $disableFallbackForUnitTests = false;
+
+ /**
+ * Use fast multiplication rather than our constant-time multiplication
+ * implementation. Can be enabled at runtime. Only enable this if you
+ * are absolutely certain that there is no timing leak on your platform.
+ *
+ * @var bool
+ */
+ public static $fastMult = false;
+
+ const LIBRARY_MAJOR_VERSION = 9;
+ const LIBRARY_MINOR_VERSION = 1;
+ const LIBRARY_VERSION_MAJOR = 9;
+ const LIBRARY_VERSION_MINOR = 1;
+ const VERSION_STRING = 'polyfill-1.0.8';
+
+ // From libsodium
+ const BASE64_VARIANT_ORIGINAL = 1;
+ const BASE64_VARIANT_ORIGINAL_NO_PADDING = 3;
+ const BASE64_VARIANT_URLSAFE = 5;
+ const BASE64_VARIANT_URLSAFE_NO_PADDING = 7;
+ const CRYPTO_AEAD_AES256GCM_KEYBYTES = 32;
+ const CRYPTO_AEAD_AES256GCM_NSECBYTES = 0;
+ const CRYPTO_AEAD_AES256GCM_NPUBBYTES = 12;
+ const CRYPTO_AEAD_AES256GCM_ABYTES = 16;
+ const CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES = 32;
+ const CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES = 0;
+ const CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES = 8;
+ const CRYPTO_AEAD_CHACHA20POLY1305_ABYTES = 16;
+ const CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES = 32;
+ const CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES = 0;
+ const CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES = 12;
+ const CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES = 16;
+ const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES = 32;
+ const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NSECBYTES = 0;
+ const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES = 24;
+ const CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES = 16;
+ const CRYPTO_AUTH_BYTES = 32;
+ const CRYPTO_AUTH_KEYBYTES = 32;
+ const CRYPTO_BOX_SEALBYTES = 16;
+ const CRYPTO_BOX_SECRETKEYBYTES = 32;
+ const CRYPTO_BOX_PUBLICKEYBYTES = 32;
+ const CRYPTO_BOX_KEYPAIRBYTES = 64;
+ const CRYPTO_BOX_MACBYTES = 16;
+ const CRYPTO_BOX_NONCEBYTES = 24;
+ const CRYPTO_BOX_SEEDBYTES = 32;
+ const CRYPTO_CORE_RISTRETTO255_BYTES = 32;
+ const CRYPTO_CORE_RISTRETTO255_SCALARBYTES = 32;
+ const CRYPTO_CORE_RISTRETTO255_HASHBYTES = 64;
+ const CRYPTO_CORE_RISTRETTO255_NONREDUCEDSCALARBYTES = 64;
+ const CRYPTO_KDF_BYTES_MIN = 16;
+ const CRYPTO_KDF_BYTES_MAX = 64;
+ const CRYPTO_KDF_CONTEXTBYTES = 8;
+ const CRYPTO_KDF_KEYBYTES = 32;
+ const CRYPTO_KX_BYTES = 32;
+ const CRYPTO_KX_PRIMITIVE = 'x25519blake2b';
+ const CRYPTO_KX_SEEDBYTES = 32;
+ const CRYPTO_KX_KEYPAIRBYTES = 64;
+ const CRYPTO_KX_PUBLICKEYBYTES = 32;
+ const CRYPTO_KX_SECRETKEYBYTES = 32;
+ const CRYPTO_KX_SESSIONKEYBYTES = 32;
+ const CRYPTO_GENERICHASH_BYTES = 32;
+ const CRYPTO_GENERICHASH_BYTES_MIN = 16;
+ const CRYPTO_GENERICHASH_BYTES_MAX = 64;
+ const CRYPTO_GENERICHASH_KEYBYTES = 32;
+ const CRYPTO_GENERICHASH_KEYBYTES_MIN = 16;
+ const CRYPTO_GENERICHASH_KEYBYTES_MAX = 64;
+ const CRYPTO_PWHASH_SALTBYTES = 16;
+ const CRYPTO_PWHASH_STRPREFIX = '$argon2id$';
+ const CRYPTO_PWHASH_ALG_ARGON2I13 = 1;
+ const CRYPTO_PWHASH_ALG_ARGON2ID13 = 2;
+ const CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE = 33554432;
+ const CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE = 4;
+ const CRYPTO_PWHASH_MEMLIMIT_MODERATE = 134217728;
+ const CRYPTO_PWHASH_OPSLIMIT_MODERATE = 6;
+ const CRYPTO_PWHASH_MEMLIMIT_SENSITIVE = 536870912;
+ const CRYPTO_PWHASH_OPSLIMIT_SENSITIVE = 8;
+ const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_SALTBYTES = 32;
+ const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_STRPREFIX = '$7$';
+ const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_INTERACTIVE = 534288;
+ const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_INTERACTIVE = 16777216;
+ const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_OPSLIMIT_SENSITIVE = 33554432;
+ const CRYPTO_PWHASH_SCRYPTSALSA208SHA256_MEMLIMIT_SENSITIVE = 1073741824;
+ const CRYPTO_SCALARMULT_BYTES = 32;
+ const CRYPTO_SCALARMULT_SCALARBYTES = 32;
+ const CRYPTO_SCALARMULT_RISTRETTO255_BYTES = 32;
+ const CRYPTO_SCALARMULT_RISTRETTO255_SCALARBYTES = 32;
+ const CRYPTO_SHORTHASH_BYTES = 8;
+ const CRYPTO_SHORTHASH_KEYBYTES = 16;
+ const CRYPTO_SECRETBOX_KEYBYTES = 32;
+ const CRYPTO_SECRETBOX_MACBYTES = 16;
+ const CRYPTO_SECRETBOX_NONCEBYTES = 24;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES = 17;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES = 24;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES = 32;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PUSH = 0;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_PULL = 1;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY = 2;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_FINAL = 3;
+ const CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX = 0x3fffffff80;
+ const CRYPTO_SIGN_BYTES = 64;
+ const CRYPTO_SIGN_SEEDBYTES = 32;
+ const CRYPTO_SIGN_PUBLICKEYBYTES = 32;
+ const CRYPTO_SIGN_SECRETKEYBYTES = 64;
+ const CRYPTO_SIGN_KEYPAIRBYTES = 96;
+ const CRYPTO_STREAM_KEYBYTES = 32;
+ const CRYPTO_STREAM_NONCEBYTES = 24;
+ const CRYPTO_STREAM_XCHACHA20_KEYBYTES = 32;
+ const CRYPTO_STREAM_XCHACHA20_NONCEBYTES = 24;
+
+ /**
+ * Add two numbers (little-endian unsigned), storing the value in the first
+ * parameter.
+ *
+ * This mutates $val.
+ *
+ * @param string $val
+ * @param string $addv
+ * @return void
+ * @throws SodiumException
+ */
+ public static function add(&$val, $addv)
+ {
+ $val_len = ParagonIE_Sodium_Core_Util::strlen($val);
+ $addv_len = ParagonIE_Sodium_Core_Util::strlen($addv);
+ if ($val_len !== $addv_len) {
+ throw new SodiumException('values must have the same length');
+ }
+ $A = ParagonIE_Sodium_Core_Util::stringToIntArray($val);
+ $B = ParagonIE_Sodium_Core_Util::stringToIntArray($addv);
+
+ $c = 0;
+ for ($i = 0; $i < $val_len; $i++) {
+ $c += ($A[$i] + $B[$i]);
+ $A[$i] = ($c & 0xff);
+ $c >>= 8;
+ }
+ $val = ParagonIE_Sodium_Core_Util::intArrayToString($A);
+ }
+
+ /**
+ * @param string $encoded
+ * @param int $variant
+ * @param string $ignore
+ * @return string
+ * @throws SodiumException
+ */
+ public static function base642bin($encoded, $variant, $ignore = '')
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($encoded, 'string', 1);
+
+ /** @var string $encoded */
+ $encoded = (string) $encoded;
+ if (ParagonIE_Sodium_Core_Util::strlen($encoded) === 0) {
+ return '';
+ }
+
+ // Just strip before decoding
+ if (!empty($ignore)) {
+ $encoded = str_replace($ignore, '', $encoded);
+ }
+
+ try {
+ switch ($variant) {
+ case self::BASE64_VARIANT_ORIGINAL:
+ return ParagonIE_Sodium_Core_Base64_Original::decode($encoded, true);
+ case self::BASE64_VARIANT_ORIGINAL_NO_PADDING:
+ return ParagonIE_Sodium_Core_Base64_Original::decode($encoded, false);
+ case self::BASE64_VARIANT_URLSAFE:
+ return ParagonIE_Sodium_Core_Base64_UrlSafe::decode($encoded, true);
+ case self::BASE64_VARIANT_URLSAFE_NO_PADDING:
+ return ParagonIE_Sodium_Core_Base64_UrlSafe::decode($encoded, false);
+ default:
+ throw new SodiumException('invalid base64 variant identifier');
+ }
+ } catch (Exception $ex) {
+ if ($ex instanceof SodiumException) {
+ throw $ex;
+ }
+ throw new SodiumException('invalid base64 string');
+ }
+ }
+
+ /**
+ * @param string $decoded
+ * @param int $variant
+ * @return string
+ * @throws SodiumException
+ */
+ public static function bin2base64($decoded, $variant)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($decoded, 'string', 1);
+ /** @var string $decoded */
+ $decoded = (string) $decoded;
+ if (ParagonIE_Sodium_Core_Util::strlen($decoded) === 0) {
+ return '';
+ }
+
+ switch ($variant) {
+ case self::BASE64_VARIANT_ORIGINAL:
+ return ParagonIE_Sodium_Core_Base64_Original::encode($decoded);
+ case self::BASE64_VARIANT_ORIGINAL_NO_PADDING:
+ return ParagonIE_Sodium_Core_Base64_Original::encodeUnpadded($decoded);
+ case self::BASE64_VARIANT_URLSAFE:
+ return ParagonIE_Sodium_Core_Base64_UrlSafe::encode($decoded);
+ case self::BASE64_VARIANT_URLSAFE_NO_PADDING:
+ return ParagonIE_Sodium_Core_Base64_UrlSafe::encodeUnpadded($decoded);
+ default:
+ throw new SodiumException('invalid base64 variant identifier');
+ }
+ }
+
+ /**
+ * Cache-timing-safe implementation of bin2hex().
+ *
+ * @param string $string A string (probably raw binary)
+ * @return string A hexadecimal-encoded string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function bin2hex($string)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($string, 'string', 1);
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_bin2hex($string);
+ }
+ if (self::use_fallback('bin2hex')) {
+ return (string) call_user_func('\\Sodium\\bin2hex', $string);
+ }
+ return ParagonIE_Sodium_Core_Util::bin2hex($string);
+ }
+
+ /**
+ * Compare two strings, in constant-time.
+ * Compared to memcmp(), compare() is more useful for sorting.
+ *
+ * @param string $left The left operand; must be a string
+ * @param string $right The right operand; must be a string
+ * @return int If < 0 if the left operand is less than the right
+ * If = 0 if both strings are equal
+ * If > 0 if the right operand is less than the left
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function compare($left, $right)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($left, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($right, 'string', 2);
+
+ if (self::useNewSodiumAPI()) {
+ return (int) sodium_compare($left, $right);
+ }
+ if (self::use_fallback('compare')) {
+ return (int) call_user_func('\\Sodium\\compare', $left, $right);
+ }
+ return ParagonIE_Sodium_Core_Util::compare($left, $right);
+ }
+
+ /**
+ * Is AES-256-GCM even available to use?
+ *
+ * @return bool
+ * @psalm-suppress UndefinedFunction
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_aead_aes256gcm_is_available()
+ {
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_aead_aes256gcm_is_available();
+ }
+ if (self::use_fallback('crypto_aead_aes256gcm_is_available')) {
+ return call_user_func('\\Sodium\\crypto_aead_aes256gcm_is_available');
+ }
+ if (PHP_VERSION_ID < 70100) {
+ // OpenSSL doesn't support AEAD before 7.1.0
+ return false;
+ }
+ if (!is_callable('openssl_encrypt') || !is_callable('openssl_decrypt')) {
+ // OpenSSL isn't installed
+ return false;
+ }
+ return (bool) in_array('aes-256-gcm', openssl_get_cipher_methods());
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data: Decryption
+ *
+ * Algorithm:
+ * AES-256-GCM
+ *
+ * This mode uses a 64-bit random nonce with a 64-bit counter.
+ * IETF mode uses a 96-bit random nonce with a 32-bit counter.
+ *
+ * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 8 bytes
+ * @param string $key Encryption key
+ *
+ * @return string|bool The original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_aead_aes256gcm_decrypt(
+ $ciphertext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = ''
+ ) {
+ if (!self::crypto_aead_aes256gcm_is_available()) {
+ throw new SodiumException('AES-256-GCM is not available');
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_AES256GCM_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_AES256GCM_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_AES256GCM_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_AES256GCM_KEYBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_AES256GCM_ABYTES) {
+ throw new SodiumException('Message must be at least CRYPTO_AEAD_AES256GCM_ABYTES long');
+ }
+ if (!is_callable('openssl_decrypt')) {
+ throw new SodiumException('The OpenSSL extension is not installed, or openssl_decrypt() is not available');
+ }
+
+ /** @var string $ctext */
+ $ctext = ParagonIE_Sodium_Core_Util::substr($ciphertext, 0, -self::CRYPTO_AEAD_AES256GCM_ABYTES);
+ /** @var string $authTag */
+ $authTag = ParagonIE_Sodium_Core_Util::substr($ciphertext, -self::CRYPTO_AEAD_AES256GCM_ABYTES, 16);
+ return openssl_decrypt(
+ $ctext,
+ 'aes-256-gcm',
+ $key,
+ OPENSSL_RAW_DATA,
+ $nonce,
+ $authTag,
+ $assocData
+ );
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data: Encryption
+ *
+ * Algorithm:
+ * AES-256-GCM
+ *
+ * @param string $plaintext Message to be encrypted
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 8 bytes
+ * @param string $key Encryption key
+ *
+ * @return string Ciphertext with a 16-byte GCM message
+ * authentication code appended
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_aead_aes256gcm_encrypt(
+ $plaintext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = ''
+ ) {
+ if (!self::crypto_aead_aes256gcm_is_available()) {
+ throw new SodiumException('AES-256-GCM is not available');
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_AES256GCM_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_AES256GCM_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_AES256GCM_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_AES256GCM_KEYBYTES long');
+ }
+
+ if (!is_callable('openssl_encrypt')) {
+ throw new SodiumException('The OpenSSL extension is not installed, or openssl_encrypt() is not available');
+ }
+
+ $authTag = '';
+ $ciphertext = openssl_encrypt(
+ $plaintext,
+ 'aes-256-gcm',
+ $key,
+ OPENSSL_RAW_DATA,
+ $nonce,
+ $authTag,
+ $assocData
+ );
+ return $ciphertext . $authTag;
+ }
+
+ /**
+ * Return a secure random key for use with the AES-256-GCM
+ * symmetric AEAD interface.
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_aead_aes256gcm_keygen()
+ {
+ return random_bytes(self::CRYPTO_AEAD_AES256GCM_KEYBYTES);
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data: Decryption
+ *
+ * Algorithm:
+ * ChaCha20-Poly1305
+ *
+ * This mode uses a 64-bit random nonce with a 64-bit counter.
+ * IETF mode uses a 96-bit random nonce with a 32-bit counter.
+ *
+ * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 8 bytes
+ * @param string $key Encryption key
+ *
+ * @return string The original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_aead_chacha20poly1305_decrypt(
+ $ciphertext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = ''
+ ) {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_CHACHA20POLY1305_ABYTES) {
+ throw new SodiumException('Message must be at least CRYPTO_AEAD_CHACHA20POLY1305_ABYTES long');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ /**
+ * @psalm-suppress InvalidReturnStatement
+ * @psalm-suppress FalsableReturnStatement
+ */
+ return sodium_crypto_aead_chacha20poly1305_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (self::use_fallback('crypto_aead_chacha20poly1305_decrypt')) {
+ return call_user_func(
+ '\\Sodium\\crypto_aead_chacha20poly1305_decrypt',
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data
+ *
+ * Algorithm:
+ * ChaCha20-Poly1305
+ *
+ * This mode uses a 64-bit random nonce with a 64-bit counter.
+ * IETF mode uses a 96-bit random nonce with a 32-bit counter.
+ *
+ * @param string $plaintext Message to be encrypted
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 8 bytes
+ * @param string $key Encryption key
+ *
+ * @return string Ciphertext with a 16-byte Poly1305 message
+ * authentication code appended
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_aead_chacha20poly1305_encrypt(
+ $plaintext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = ''
+ ) {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_aead_chacha20poly1305_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (self::use_fallback('crypto_aead_chacha20poly1305_encrypt')) {
+ return (string) call_user_func(
+ '\\Sodium\\crypto_aead_chacha20poly1305_encrypt',
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data: Decryption
+ *
+ * Algorithm:
+ * ChaCha20-Poly1305
+ *
+ * IETF mode uses a 96-bit random nonce with a 32-bit counter.
+ * Regular mode uses a 64-bit random nonce with a 64-bit counter.
+ *
+ * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 12 bytes
+ * @param string $key Encryption key
+ *
+ * @return string The original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_aead_chacha20poly1305_ietf_decrypt(
+ $ciphertext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = ''
+ ) {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_CHACHA20POLY1305_ABYTES) {
+ throw new SodiumException('Message must be at least CRYPTO_AEAD_CHACHA20POLY1305_ABYTES long');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ /**
+ * @psalm-suppress InvalidReturnStatement
+ * @psalm-suppress FalsableReturnStatement
+ */
+ return sodium_crypto_aead_chacha20poly1305_ietf_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (self::use_fallback('crypto_aead_chacha20poly1305_ietf_decrypt')) {
+ return call_user_func(
+ '\\Sodium\\crypto_aead_chacha20poly1305_ietf_decrypt',
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_ietf_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_ietf_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+
+ /**
+ * Return a secure random key for use with the ChaCha20-Poly1305
+ * symmetric AEAD interface.
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_aead_chacha20poly1305_keygen()
+ {
+ return random_bytes(self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES);
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data
+ *
+ * Algorithm:
+ * ChaCha20-Poly1305
+ *
+ * IETF mode uses a 96-bit random nonce with a 32-bit counter.
+ * Regular mode uses a 64-bit random nonce with a 64-bit counter.
+ *
+ * @param string $plaintext Message to be encrypted
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 8 bytes
+ * @param string $key Encryption key
+ *
+ * @return string Ciphertext with a 16-byte Poly1305 message
+ * authentication code appended
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_aead_chacha20poly1305_ietf_encrypt(
+ $plaintext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = ''
+ ) {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ if (!is_null($assocData)) {
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES long');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_aead_chacha20poly1305_ietf_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (self::use_fallback('crypto_aead_chacha20poly1305_ietf_encrypt')) {
+ return (string) call_user_func(
+ '\\Sodium\\crypto_aead_chacha20poly1305_ietf_encrypt',
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::aead_chacha20poly1305_ietf_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ return ParagonIE_Sodium_Crypto::aead_chacha20poly1305_ietf_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+
+ /**
+ * Return a secure random key for use with the ChaCha20-Poly1305
+ * symmetric AEAD interface. (IETF version)
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_aead_chacha20poly1305_ietf_keygen()
+ {
+ return random_bytes(self::CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES);
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data: Decryption
+ *
+ * Algorithm:
+ * XChaCha20-Poly1305
+ *
+ * This mode uses a 64-bit random nonce with a 64-bit counter.
+ * IETF mode uses a 96-bit random nonce with a 32-bit counter.
+ *
+ * @param string $ciphertext Encrypted message (with Poly1305 MAC appended)
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 8 bytes
+ * @param string $key Encryption key
+ * @param bool $dontFallback Don't fallback to ext/sodium
+ *
+ * @return string|bool The original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_aead_xchacha20poly1305_ietf_decrypt(
+ $ciphertext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = '',
+ $dontFallback = false
+ ) {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ if (!is_null($assocData)) {
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ } else {
+ $assocData = '';
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES) {
+ throw new SodiumException('Message must be at least CRYPTO_AEAD_XCHACHA20POLY1305_IETF_ABYTES long');
+ }
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ if (is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_decrypt')) {
+ return sodium_crypto_aead_xchacha20poly1305_ietf_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ }
+
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ return ParagonIE_Sodium_Crypto::aead_xchacha20poly1305_ietf_decrypt(
+ $ciphertext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+
+ /**
+ * Authenticated Encryption with Associated Data
+ *
+ * Algorithm:
+ * XChaCha20-Poly1305
+ *
+ * This mode uses a 64-bit random nonce with a 64-bit counter.
+ * IETF mode uses a 96-bit random nonce with a 32-bit counter.
+ *
+ * @param string $plaintext Message to be encrypted
+ * @param string $assocData Authenticated Associated Data (unencrypted)
+ * @param string $nonce Number to be used only Once; must be 8 bytes
+ * @param string $key Encryption key
+ * @param bool $dontFallback Don't fallback to ext/sodium
+ *
+ * @return string Ciphertext with a 16-byte Poly1305 message
+ * authentication code appended
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_aead_xchacha20poly1305_ietf_encrypt(
+ $plaintext = '',
+ $assocData = '',
+ $nonce = '',
+ $key = '',
+ $dontFallback = false
+ ) {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ if (!is_null($assocData)) {
+ ParagonIE_Sodium_Core_Util::declareScalarType($assocData, 'string', 2);
+ } else {
+ $assocData = '';
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_NPUBBYTES) {
+ throw new SodiumException('Nonce must be CRYPTO_AEAD_XCHACHA20POLY1305_NPUBBYTES long');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES) {
+ throw new SodiumException('Key must be CRYPTO_AEAD_XCHACHA20POLY1305_KEYBYTES long');
+ }
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ if (is_callable('sodium_crypto_aead_xchacha20poly1305_ietf_encrypt')) {
+ return sodium_crypto_aead_xchacha20poly1305_ietf_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ }
+
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::aead_xchacha20poly1305_ietf_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+ return ParagonIE_Sodium_Crypto::aead_xchacha20poly1305_ietf_encrypt(
+ $plaintext,
+ $assocData,
+ $nonce,
+ $key
+ );
+ }
+
+ /**
+ * Return a secure random key for use with the XChaCha20-Poly1305
+ * symmetric AEAD interface.
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_aead_xchacha20poly1305_ietf_keygen()
+ {
+ return random_bytes(self::CRYPTO_AEAD_XCHACHA20POLY1305_IETF_KEYBYTES);
+ }
+
+ /**
+ * Authenticate a message. Uses symmetric-key cryptography.
+ *
+ * Algorithm:
+ * HMAC-SHA512-256. Which is HMAC-SHA-512 truncated to 256 bits.
+ * Not to be confused with HMAC-SHA-512/256 which would use the
+ * SHA-512/256 hash function (uses different initial parameters
+ * but still truncates to 256 bits to sidestep length-extension
+ * attacks).
+ *
+ * @param string $message Message to be authenticated
+ * @param string $key Symmetric authentication key
+ * @return string Message authentication code
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_auth($message, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AUTH_KEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_AUTH_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_auth($message, $key);
+ }
+ if (self::use_fallback('crypto_auth')) {
+ return (string) call_user_func('\\Sodium\\crypto_auth', $message, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::auth($message, $key);
+ }
+ return ParagonIE_Sodium_Crypto::auth($message, $key);
+ }
+
+ /**
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_auth_keygen()
+ {
+ return random_bytes(self::CRYPTO_AUTH_KEYBYTES);
+ }
+
+ /**
+ * Verify the MAC of a message previously authenticated with crypto_auth.
+ *
+ * @param string $mac Message authentication code
+ * @param string $message Message whose authenticity you are attempting to
+ * verify (with a given MAC and key)
+ * @param string $key Symmetric authentication key
+ * @return bool TRUE if authenticated, FALSE otherwise
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_auth_verify($mac, $message, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($mac, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($mac) !== self::CRYPTO_AUTH_BYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_AUTH_BYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_AUTH_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_AUTH_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (bool) sodium_crypto_auth_verify($mac, $message, $key);
+ }
+ if (self::use_fallback('crypto_auth_verify')) {
+ return (bool) call_user_func('\\Sodium\\crypto_auth_verify', $mac, $message, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::auth_verify($mac, $message, $key);
+ }
+ return ParagonIE_Sodium_Crypto::auth_verify($mac, $message, $key);
+ }
+
+ /**
+ * Authenticated asymmetric-key encryption. Both the sender and recipient
+ * may decrypt messages.
+ *
+ * Algorithm: X25519-XSalsa20-Poly1305.
+ * X25519: Elliptic-Curve Diffie Hellman over Curve25519.
+ * XSalsa20: Extended-nonce variant of salsa20.
+ * Poyl1305: Polynomial MAC for one-time message authentication.
+ *
+ * @param string $plaintext The message to be encrypted
+ * @param string $nonce A Number to only be used Once; must be 24 bytes
+ * @param string $keypair Your secret key and your recipient's public key
+ * @return string Ciphertext with 16-byte Poly1305 MAC
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_box($plaintext, $nonce, $keypair)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_BOX_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_BOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_BOX_KEYPAIRBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box($plaintext, $nonce, $keypair);
+ }
+ if (self::use_fallback('crypto_box')) {
+ return (string) call_user_func('\\Sodium\\crypto_box', $plaintext, $nonce, $keypair);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box($plaintext, $nonce, $keypair);
+ }
+ return ParagonIE_Sodium_Crypto::box($plaintext, $nonce, $keypair);
+ }
+
+ /**
+ * Anonymous public-key encryption. Only the recipient may decrypt messages.
+ *
+ * Algorithm: X25519-XSalsa20-Poly1305, as with crypto_box.
+ * The sender's X25519 keypair is ephemeral.
+ * Nonce is generated from the BLAKE2b hash of both public keys.
+ *
+ * This provides ciphertext integrity.
+ *
+ * @param string $plaintext Message to be sealed
+ * @param string $publicKey Your recipient's public key
+ * @return string Sealed message that only your recipient can
+ * decrypt
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_box_seal($plaintext, $publicKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box_seal($plaintext, $publicKey);
+ }
+ if (self::use_fallback('crypto_box_seal')) {
+ return (string) call_user_func('\\Sodium\\crypto_box_seal', $plaintext, $publicKey);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_seal($plaintext, $publicKey);
+ }
+ return ParagonIE_Sodium_Crypto::box_seal($plaintext, $publicKey);
+ }
+
+ /**
+ * Opens a message encrypted with crypto_box_seal(). Requires
+ * the recipient's keypair (sk || pk) to decrypt successfully.
+ *
+ * This validates ciphertext integrity.
+ *
+ * @param string $ciphertext Sealed message to be opened
+ * @param string $keypair Your crypto_box keypair
+ * @return string The original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_box_seal_open($ciphertext, $keypair)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_BOX_KEYPAIRBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ /**
+ * @psalm-suppress InvalidReturnStatement
+ * @psalm-suppress FalsableReturnStatement
+ */
+ return sodium_crypto_box_seal_open($ciphertext, $keypair);
+ }
+ if (self::use_fallback('crypto_box_seal_open')) {
+ return call_user_func('\\Sodium\\crypto_box_seal_open', $ciphertext, $keypair);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_seal_open($ciphertext, $keypair);
+ }
+ return ParagonIE_Sodium_Crypto::box_seal_open($ciphertext, $keypair);
+ }
+
+ /**
+ * Generate a new random X25519 keypair.
+ *
+ * @return string A 64-byte string; the first 32 are your secret key, while
+ * the last 32 are your public key. crypto_box_secretkey()
+ * and crypto_box_publickey() exist to separate them so you
+ * don't accidentally get them mixed up!
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_box_keypair()
+ {
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box_keypair();
+ }
+ if (self::use_fallback('crypto_box_keypair')) {
+ return (string) call_user_func('\\Sodium\\crypto_box_keypair');
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_keypair();
+ }
+ return ParagonIE_Sodium_Crypto::box_keypair();
+ }
+
+ /**
+ * Combine two keys into a keypair for use in library methods that expect
+ * a keypair. This doesn't necessarily have to be the same person's keys.
+ *
+ * @param string $secretKey Secret key
+ * @param string $publicKey Public key
+ * @return string Keypair
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_box_keypair_from_secretkey_and_publickey($secretKey, $publicKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box_keypair_from_secretkey_and_publickey($secretKey, $publicKey);
+ }
+ if (self::use_fallback('crypto_box_keypair_from_secretkey_and_publickey')) {
+ return (string) call_user_func('\\Sodium\\crypto_box_keypair_from_secretkey_and_publickey', $secretKey, $publicKey);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_keypair_from_secretkey_and_publickey($secretKey, $publicKey);
+ }
+ return ParagonIE_Sodium_Crypto::box_keypair_from_secretkey_and_publickey($secretKey, $publicKey);
+ }
+
+ /**
+ * Decrypt a message previously encrypted with crypto_box().
+ *
+ * @param string $ciphertext Encrypted message
+ * @param string $nonce Number to only be used Once; must be 24 bytes
+ * @param string $keypair Your secret key and the sender's public key
+ * @return string The original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_box_open($ciphertext, $nonce, $keypair)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($ciphertext) < self::CRYPTO_BOX_MACBYTES) {
+ throw new SodiumException('Argument 1 must be at least CRYPTO_BOX_MACBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_BOX_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_BOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_BOX_KEYPAIRBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ /**
+ * @psalm-suppress InvalidReturnStatement
+ * @psalm-suppress FalsableReturnStatement
+ */
+ return sodium_crypto_box_open($ciphertext, $nonce, $keypair);
+ }
+ if (self::use_fallback('crypto_box_open')) {
+ return call_user_func('\\Sodium\\crypto_box_open', $ciphertext, $nonce, $keypair);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_open($ciphertext, $nonce, $keypair);
+ }
+ return ParagonIE_Sodium_Crypto::box_open($ciphertext, $nonce, $keypair);
+ }
+
+ /**
+ * Extract the public key from a crypto_box keypair.
+ *
+ * @param string $keypair Keypair containing secret and public key
+ * @return string Your crypto_box public key
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_box_publickey($keypair)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_BOX_KEYPAIRBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box_publickey($keypair);
+ }
+ if (self::use_fallback('crypto_box_publickey')) {
+ return (string) call_user_func('\\Sodium\\crypto_box_publickey', $keypair);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_publickey($keypair);
+ }
+ return ParagonIE_Sodium_Crypto::box_publickey($keypair);
+ }
+
+ /**
+ * Calculate the X25519 public key from a given X25519 secret key.
+ *
+ * @param string $secretKey Any X25519 secret key
+ * @return string The corresponding X25519 public key
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_box_publickey_from_secretkey($secretKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box_publickey_from_secretkey($secretKey);
+ }
+ if (self::use_fallback('crypto_box_publickey_from_secretkey')) {
+ return (string) call_user_func('\\Sodium\\crypto_box_publickey_from_secretkey', $secretKey);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_publickey_from_secretkey($secretKey);
+ }
+ return ParagonIE_Sodium_Crypto::box_publickey_from_secretkey($secretKey);
+ }
+
+ /**
+ * Extract the secret key from a crypto_box keypair.
+ *
+ * @param string $keypair
+ * @return string Your crypto_box secret key
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_box_secretkey($keypair)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_BOX_KEYPAIRBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box_secretkey($keypair);
+ }
+ if (self::use_fallback('crypto_box_secretkey')) {
+ return (string) call_user_func('\\Sodium\\crypto_box_secretkey', $keypair);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_secretkey($keypair);
+ }
+ return ParagonIE_Sodium_Crypto::box_secretkey($keypair);
+ }
+
+ /**
+ * Generate an X25519 keypair from a seed.
+ *
+ * @param string $seed
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress UndefinedFunction
+ */
+ public static function crypto_box_seed_keypair($seed)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($seed, 'string', 1);
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_box_seed_keypair($seed);
+ }
+ if (self::use_fallback('crypto_box_seed_keypair')) {
+ return (string) call_user_func('\\Sodium\\crypto_box_seed_keypair', $seed);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::box_seed_keypair($seed);
+ }
+ return ParagonIE_Sodium_Crypto::box_seed_keypair($seed);
+ }
+
+ /**
+ * Calculates a BLAKE2b hash, with an optional key.
+ *
+ * @param string $message The message to be hashed
+ * @param string|null $key If specified, must be a string between 16
+ * and 64 bytes long
+ * @param int $length Output length in bytes; must be between 16
+ * and 64 (default = 32)
+ * @return string Raw binary
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_generichash($message, $key = '', $length = self::CRYPTO_GENERICHASH_BYTES)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ if (is_null($key)) {
+ $key = '';
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 3);
+
+ /* Input validation: */
+ if (!empty($key)) {
+ if (ParagonIE_Sodium_Core_Util::strlen($key) < self::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
+ throw new SodiumException('Unsupported key size. Must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) > self::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
+ throw new SodiumException('Unsupported key size. Must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes long.');
+ }
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_generichash($message, $key, $length);
+ }
+ if (self::use_fallback('crypto_generichash')) {
+ return (string) call_user_func('\\Sodium\\crypto_generichash', $message, $key, $length);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::generichash($message, $key, $length);
+ }
+ return ParagonIE_Sodium_Crypto::generichash($message, $key, $length);
+ }
+
+ /**
+ * Get the final BLAKE2b hash output for a given context.
+ *
+ * @param string $ctx BLAKE2 hashing context. Generated by crypto_generichash_init().
+ * @param int $length Hash output size.
+ * @return string Final BLAKE2b hash.
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress ReferenceConstraintViolation
+ * @psalm-suppress ConflictingReferenceConstraint
+ */
+ public static function crypto_generichash_final(&$ctx, $length = self::CRYPTO_GENERICHASH_BYTES)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ctx, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 2);
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_generichash_final($ctx, $length);
+ }
+ if (self::use_fallback('crypto_generichash_final')) {
+ $func = '\\Sodium\\crypto_generichash_final';
+ return (string) $func($ctx, $length);
+ }
+ if ($length < 1) {
+ try {
+ self::memzero($ctx);
+ } catch (SodiumException $ex) {
+ unset($ctx);
+ }
+ return '';
+ }
+ if (PHP_INT_SIZE === 4) {
+ $result = ParagonIE_Sodium_Crypto32::generichash_final($ctx, $length);
+ } else {
+ $result = ParagonIE_Sodium_Crypto::generichash_final($ctx, $length);
+ }
+ try {
+ self::memzero($ctx);
+ } catch (SodiumException $ex) {
+ unset($ctx);
+ }
+ return $result;
+ }
+
+ /**
+ * Initialize a BLAKE2b hashing context, for use in a streaming interface.
+ *
+ * @param string|null $key If specified must be a string between 16 and 64 bytes
+ * @param int $length The size of the desired hash output
+ * @return string A BLAKE2 hashing context, encoded as a string
+ * (To be 100% compatible with ext/libsodium)
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_generichash_init($key = '', $length = self::CRYPTO_GENERICHASH_BYTES)
+ {
+ /* Type checks: */
+ if (is_null($key)) {
+ $key = '';
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 2);
+
+ /* Input validation: */
+ if (!empty($key)) {
+ if (ParagonIE_Sodium_Core_Util::strlen($key) < self::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
+ throw new SodiumException('Unsupported key size. Must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) > self::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
+ throw new SodiumException('Unsupported key size. Must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes long.');
+ }
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_generichash_init($key, $length);
+ }
+ if (self::use_fallback('crypto_generichash_init')) {
+ return (string) call_user_func('\\Sodium\\crypto_generichash_init', $key, $length);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::generichash_init($key, $length);
+ }
+ return ParagonIE_Sodium_Crypto::generichash_init($key, $length);
+ }
+
+ /**
+ * Initialize a BLAKE2b hashing context, for use in a streaming interface.
+ *
+ * @param string|null $key If specified must be a string between 16 and 64 bytes
+ * @param int $length The size of the desired hash output
+ * @param string $salt Salt (up to 16 bytes)
+ * @param string $personal Personalization string (up to 16 bytes)
+ * @return string A BLAKE2 hashing context, encoded as a string
+ * (To be 100% compatible with ext/libsodium)
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_generichash_init_salt_personal(
+ $key = '',
+ $length = self::CRYPTO_GENERICHASH_BYTES,
+ $salt = '',
+ $personal = ''
+ ) {
+ /* Type checks: */
+ if (is_null($key)) {
+ $key = '';
+ }
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($length, 'int', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($salt, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($personal, 'string', 4);
+ $salt = str_pad($salt, 16, "\0", STR_PAD_RIGHT);
+ $personal = str_pad($personal, 16, "\0", STR_PAD_RIGHT);
+
+ /* Input validation: */
+ if (!empty($key)) {
+ /*
+ if (ParagonIE_Sodium_Core_Util::strlen($key) < self::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
+ throw new SodiumException('Unsupported key size. Must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes long.');
+ }
+ */
+ if (ParagonIE_Sodium_Core_Util::strlen($key) > self::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
+ throw new SodiumException('Unsupported key size. Must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes long.');
+ }
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::generichash_init_salt_personal($key, $length, $salt, $personal);
+ }
+ return ParagonIE_Sodium_Crypto::generichash_init_salt_personal($key, $length, $salt, $personal);
+ }
+
+ /**
+ * Update a BLAKE2b hashing context with additional data.
+ *
+ * @param string $ctx BLAKE2 hashing context. Generated by crypto_generichash_init().
+ * $ctx is passed by reference and gets updated in-place.
+ * @param-out string $ctx
+ * @param string $message The message to append to the existing hash state.
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress ReferenceConstraintViolation
+ */
+ public static function crypto_generichash_update(&$ctx, $message)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ctx, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 2);
+
+ if (self::useNewSodiumAPI()) {
+ sodium_crypto_generichash_update($ctx, $message);
+ return;
+ }
+ if (self::use_fallback('crypto_generichash_update')) {
+ $func = '\\Sodium\\crypto_generichash_update';
+ $func($ctx, $message);
+ return;
+ }
+ if (PHP_INT_SIZE === 4) {
+ $ctx = ParagonIE_Sodium_Crypto32::generichash_update($ctx, $message);
+ } else {
+ $ctx = ParagonIE_Sodium_Crypto::generichash_update($ctx, $message);
+ }
+ }
+
+ /**
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_generichash_keygen()
+ {
+ return random_bytes(self::CRYPTO_GENERICHASH_KEYBYTES);
+ }
+
+ /**
+ * @param int $subkey_len
+ * @param int $subkey_id
+ * @param string $context
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ */
+ public static function crypto_kdf_derive_from_key(
+ $subkey_len,
+ $subkey_id,
+ $context,
+ $key
+ ) {
+ ParagonIE_Sodium_Core_Util::declareScalarType($subkey_len, 'int', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($subkey_id, 'int', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($context, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+ $subkey_id = (int) $subkey_id;
+ $subkey_len = (int) $subkey_len;
+ $context = (string) $context;
+ $key = (string) $key;
+
+ if ($subkey_len < self::CRYPTO_KDF_BYTES_MIN) {
+ throw new SodiumException('subkey cannot be smaller than SODIUM_CRYPTO_KDF_BYTES_MIN');
+ }
+ if ($subkey_len > self::CRYPTO_KDF_BYTES_MAX) {
+ throw new SodiumException('subkey cannot be larger than SODIUM_CRYPTO_KDF_BYTES_MAX');
+ }
+ if ($subkey_id < 0) {
+ throw new SodiumException('subkey_id cannot be negative');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($context) !== self::CRYPTO_KDF_CONTEXTBYTES) {
+ throw new SodiumException('context should be SODIUM_CRYPTO_KDF_CONTEXTBYTES bytes');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_KDF_KEYBYTES) {
+ throw new SodiumException('key should be SODIUM_CRYPTO_KDF_KEYBYTES bytes');
+ }
+
+ $salt = ParagonIE_Sodium_Core_Util::store64_le($subkey_id);
+ $state = self::crypto_generichash_init_salt_personal(
+ $key,
+ $subkey_len,
+ $salt,
+ $context
+ );
+ return self::crypto_generichash_final($state, $subkey_len);
+ }
+
+ /**
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_kdf_keygen()
+ {
+ return random_bytes(self::CRYPTO_KDF_KEYBYTES);
+ }
+
+ /**
+ * Perform a key exchange, between a designated client and a server.
+ *
+ * Typically, you would designate one machine to be the client and the
+ * other to be the server. The first two keys are what you'd expect for
+ * scalarmult() below, but the latter two public keys don't swap places.
+ *
+ * | ALICE | BOB |
+ * | Client | Server |
+ * |--------------------------------|-------------------------------------|
+ * | shared = crypto_kx( | shared = crypto_kx( |
+ * | alice_sk, | bob_sk, | <- contextual
+ * | bob_pk, | alice_pk, | <- contextual
+ * | alice_pk, | alice_pk, | <----- static
+ * | bob_pk | bob_pk | <----- static
+ * | ) | ) |
+ *
+ * They are used along with the scalarmult product to generate a 256-bit
+ * BLAKE2b hash unique to the client and server keys.
+ *
+ * @param string $my_secret
+ * @param string $their_public
+ * @param string $client_public
+ * @param string $server_public
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_kx($my_secret, $their_public, $client_public, $server_public, $dontFallback = false)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($my_secret, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($their_public, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($client_public, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($server_public, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($my_secret) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($their_public) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($client_public) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($server_public) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 4 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ if (is_callable('sodium_crypto_kx')) {
+ return (string) sodium_crypto_kx(
+ $my_secret,
+ $their_public,
+ $client_public,
+ $server_public
+ );
+ }
+ }
+ if (self::use_fallback('crypto_kx')) {
+ return (string) call_user_func(
+ '\\Sodium\\crypto_kx',
+ $my_secret,
+ $their_public,
+ $client_public,
+ $server_public
+ );
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::keyExchange(
+ $my_secret,
+ $their_public,
+ $client_public,
+ $server_public
+ );
+ }
+ return ParagonIE_Sodium_Crypto::keyExchange(
+ $my_secret,
+ $their_public,
+ $client_public,
+ $server_public
+ );
+ }
+
+ /**
+ * @param string $seed
+ * @return string
+ * @throws SodiumException
+ */
+ public static function crypto_kx_seed_keypair($seed)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($seed, 'string', 1);
+
+ $seed = (string) $seed;
+
+ if (ParagonIE_Sodium_Core_Util::strlen($seed) !== self::CRYPTO_KX_SEEDBYTES) {
+ throw new SodiumException('seed must be SODIUM_CRYPTO_KX_SEEDBYTES bytes');
+ }
+
+ $sk = self::crypto_generichash($seed, '', self::CRYPTO_KX_SECRETKEYBYTES);
+ $pk = self::crypto_scalarmult_base($sk);
+ return $sk . $pk;
+ }
+
+ /**
+ * @return string
+ * @throws Exception
+ */
+ public static function crypto_kx_keypair()
+ {
+ $sk = self::randombytes_buf(self::CRYPTO_KX_SECRETKEYBYTES);
+ $pk = self::crypto_scalarmult_base($sk);
+ return $sk . $pk;
+ }
+
+ /**
+ * @param string $keypair
+ * @param string $serverPublicKey
+ * @return array{0: string, 1: string}
+ * @throws SodiumException
+ */
+ public static function crypto_kx_client_session_keys($keypair, $serverPublicKey)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($serverPublicKey, 'string', 2);
+
+ $keypair = (string) $keypair;
+ $serverPublicKey = (string) $serverPublicKey;
+
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_KX_KEYPAIRBYTES) {
+ throw new SodiumException('keypair should be SODIUM_CRYPTO_KX_KEYPAIRBYTES bytes');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($serverPublicKey) !== self::CRYPTO_KX_PUBLICKEYBYTES) {
+ throw new SodiumException('public keys must be SODIUM_CRYPTO_KX_PUBLICKEYBYTES bytes');
+ }
+
+ $sk = self::crypto_kx_secretkey($keypair);
+ $pk = self::crypto_kx_publickey($keypair);
+ $h = self::crypto_generichash_init(null, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
+ self::crypto_generichash_update($h, self::crypto_scalarmult($sk, $serverPublicKey));
+ self::crypto_generichash_update($h, $pk);
+ self::crypto_generichash_update($h, $serverPublicKey);
+ $sessionKeys = self::crypto_generichash_final($h, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
+ return array(
+ ParagonIE_Sodium_Core_Util::substr(
+ $sessionKeys,
+ 0,
+ self::CRYPTO_KX_SESSIONKEYBYTES
+ ),
+ ParagonIE_Sodium_Core_Util::substr(
+ $sessionKeys,
+ self::CRYPTO_KX_SESSIONKEYBYTES,
+ self::CRYPTO_KX_SESSIONKEYBYTES
+ )
+ );
+ }
+
+ /**
+ * @param string $keypair
+ * @param string $clientPublicKey
+ * @return array{0: string, 1: string}
+ * @throws SodiumException
+ */
+ public static function crypto_kx_server_session_keys($keypair, $clientPublicKey)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($clientPublicKey, 'string', 2);
+
+ $keypair = (string) $keypair;
+ $clientPublicKey = (string) $clientPublicKey;
+
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_KX_KEYPAIRBYTES) {
+ throw new SodiumException('keypair should be SODIUM_CRYPTO_KX_KEYPAIRBYTES bytes');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($clientPublicKey) !== self::CRYPTO_KX_PUBLICKEYBYTES) {
+ throw new SodiumException('public keys must be SODIUM_CRYPTO_KX_PUBLICKEYBYTES bytes');
+ }
+
+ $sk = self::crypto_kx_secretkey($keypair);
+ $pk = self::crypto_kx_publickey($keypair);
+ $h = self::crypto_generichash_init(null, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
+ self::crypto_generichash_update($h, self::crypto_scalarmult($sk, $clientPublicKey));
+ self::crypto_generichash_update($h, $clientPublicKey);
+ self::crypto_generichash_update($h, $pk);
+ $sessionKeys = self::crypto_generichash_final($h, self::CRYPTO_KX_SESSIONKEYBYTES * 2);
+ return array(
+ ParagonIE_Sodium_Core_Util::substr(
+ $sessionKeys,
+ self::CRYPTO_KX_SESSIONKEYBYTES,
+ self::CRYPTO_KX_SESSIONKEYBYTES
+ ),
+ ParagonIE_Sodium_Core_Util::substr(
+ $sessionKeys,
+ 0,
+ self::CRYPTO_KX_SESSIONKEYBYTES
+ )
+ );
+ }
+
+ /**
+ * @param string $kp
+ * @return string
+ * @throws SodiumException
+ */
+ public static function crypto_kx_secretkey($kp)
+ {
+ return ParagonIE_Sodium_Core_Util::substr(
+ $kp,
+ 0,
+ self::CRYPTO_KX_SECRETKEYBYTES
+ );
+ }
+
+ /**
+ * @param string $kp
+ * @return string
+ * @throws SodiumException
+ */
+ public static function crypto_kx_publickey($kp)
+ {
+ return ParagonIE_Sodium_Core_Util::substr(
+ $kp,
+ self::CRYPTO_KX_SECRETKEYBYTES,
+ self::CRYPTO_KX_PUBLICKEYBYTES
+ );
+ }
+
+ /**
+ * @param int $outlen
+ * @param string $passwd
+ * @param string $salt
+ * @param int $opslimit
+ * @param int $memlimit
+ * @param int|null $alg
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $alg = null)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($outlen, 'int', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($salt, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 4);
+ ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 5);
+
+ if (self::useNewSodiumAPI()) {
+ if (!is_null($alg)) {
+ ParagonIE_Sodium_Core_Util::declareScalarType($alg, 'int', 6);
+ return sodium_crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit, $alg);
+ }
+ return sodium_crypto_pwhash($outlen, $passwd, $salt, $opslimit, $memlimit);
+ }
+ if (self::use_fallback('crypto_pwhash')) {
+ return (string) call_user_func('\\Sodium\\crypto_pwhash', $outlen, $passwd, $salt, $opslimit, $memlimit);
+ }
+ // This is the best we can do.
+ throw new SodiumException(
+ 'This is not implemented, as it is not possible to implement Argon2i with acceptable performance in pure-PHP'
+ );
+ }
+
+ /**
+ * !Exclusive to sodium_compat!
+ *
+ * This returns TRUE if the native crypto_pwhash API is available by libsodium.
+ * This returns FALSE if only sodium_compat is available.
+ *
+ * @return bool
+ */
+ public static function crypto_pwhash_is_available()
+ {
+ if (self::useNewSodiumAPI()) {
+ return true;
+ }
+ if (self::use_fallback('crypto_pwhash')) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * @param string $passwd
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_pwhash_str($passwd, $opslimit, $memlimit)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 3);
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_pwhash_str($passwd, $opslimit, $memlimit);
+ }
+ if (self::use_fallback('crypto_pwhash_str')) {
+ return (string) call_user_func('\\Sodium\\crypto_pwhash_str', $passwd, $opslimit, $memlimit);
+ }
+ // This is the best we can do.
+ throw new SodiumException(
+ 'This is not implemented, as it is not possible to implement Argon2i with acceptable performance in pure-PHP'
+ );
+ }
+
+ /**
+ * Do we need to rehash this password?
+ *
+ * @param string $hash
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return bool
+ * @throws SodiumException
+ */
+ public static function crypto_pwhash_str_needs_rehash($hash, $opslimit, $memlimit)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($hash, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 3);
+
+ // Just grab the first 4 pieces.
+ $pieces = explode('$', (string) $hash);
+ $prefix = implode('$', array_slice($pieces, 0, 4));
+
+ // Rebuild the expected header.
+ /** @var int $ops */
+ $ops = (int) $opslimit;
+ /** @var int $mem */
+ $mem = (int) $memlimit >> 10;
+ $encoded = self::CRYPTO_PWHASH_STRPREFIX . 'v=19$m=' . $mem . ',t=' . $ops . ',p=1';
+
+ // Do they match? If so, we don't need to rehash, so return false.
+ return !ParagonIE_Sodium_Core_Util::hashEquals($encoded, $prefix);
+ }
+
+ /**
+ * @param string $passwd
+ * @param string $hash
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_pwhash_str_verify($passwd, $hash)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($hash, 'string', 2);
+
+ if (self::useNewSodiumAPI()) {
+ return (bool) sodium_crypto_pwhash_str_verify($passwd, $hash);
+ }
+ if (self::use_fallback('crypto_pwhash_str_verify')) {
+ return (bool) call_user_func('\\Sodium\\crypto_pwhash_str_verify', $passwd, $hash);
+ }
+ // This is the best we can do.
+ throw new SodiumException(
+ 'This is not implemented, as it is not possible to implement Argon2i with acceptable performance in pure-PHP'
+ );
+ }
+
+ /**
+ * @param int $outlen
+ * @param string $passwd
+ * @param string $salt
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function crypto_pwhash_scryptsalsa208sha256($outlen, $passwd, $salt, $opslimit, $memlimit)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($outlen, 'int', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($salt, 'string', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 4);
+ ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 5);
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_pwhash_scryptsalsa208sha256(
+ (int) $outlen,
+ (string) $passwd,
+ (string) $salt,
+ (int) $opslimit,
+ (int) $memlimit
+ );
+ }
+ if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256')) {
+ return (string) call_user_func(
+ '\\Sodium\\crypto_pwhash_scryptsalsa208sha256',
+ (int) $outlen,
+ (string) $passwd,
+ (string) $salt,
+ (int) $opslimit,
+ (int) $memlimit
+ );
+ }
+ // This is the best we can do.
+ throw new SodiumException(
+ 'This is not implemented, as it is not possible to implement Scrypt with acceptable performance in pure-PHP'
+ );
+ }
+
+ /**
+ * !Exclusive to sodium_compat!
+ *
+ * This returns TRUE if the native crypto_pwhash API is available by libsodium.
+ * This returns FALSE if only sodium_compat is available.
+ *
+ * @return bool
+ */
+ public static function crypto_pwhash_scryptsalsa208sha256_is_available()
+ {
+ if (self::useNewSodiumAPI()) {
+ return true;
+ }
+ if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256')) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * @param string $passwd
+ * @param int $opslimit
+ * @param int $memlimit
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function crypto_pwhash_scryptsalsa208sha256_str($passwd, $opslimit, $memlimit)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($opslimit, 'int', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($memlimit, 'int', 3);
+
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_crypto_pwhash_scryptsalsa208sha256_str(
+ (string) $passwd,
+ (int) $opslimit,
+ (int) $memlimit
+ );
+ }
+ if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256_str')) {
+ return (string) call_user_func(
+ '\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str',
+ (string) $passwd,
+ (int) $opslimit,
+ (int) $memlimit
+ );
+ }
+ // This is the best we can do.
+ throw new SodiumException(
+ 'This is not implemented, as it is not possible to implement Scrypt with acceptable performance in pure-PHP'
+ );
+ }
+
+ /**
+ * @param string $passwd
+ * @param string $hash
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function crypto_pwhash_scryptsalsa208sha256_str_verify($passwd, $hash)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($passwd, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($hash, 'string', 2);
+
+ if (self::useNewSodiumAPI()) {
+ return (bool) sodium_crypto_pwhash_scryptsalsa208sha256_str_verify(
+ (string) $passwd,
+ (string) $hash
+ );
+ }
+ if (self::use_fallback('crypto_pwhash_scryptsalsa208sha256_str_verify')) {
+ return (bool) call_user_func(
+ '\\Sodium\\crypto_pwhash_scryptsalsa208sha256_str_verify',
+ (string) $passwd,
+ (string) $hash
+ );
+ }
+ // This is the best we can do.
+ throw new SodiumException(
+ 'This is not implemented, as it is not possible to implement Scrypt with acceptable performance in pure-PHP'
+ );
+ }
+
+ /**
+ * Calculate the shared secret between your secret key and your
+ * recipient's public key.
+ *
+ * Algorithm: X25519 (ECDH over Curve25519)
+ *
+ * @param string $secretKey
+ * @param string $publicKey
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_scalarmult($secretKey, $publicKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_BOX_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_BOX_PUBLICKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_scalarmult($secretKey, $publicKey);
+ }
+ if (self::use_fallback('crypto_scalarmult')) {
+ return (string) call_user_func('\\Sodium\\crypto_scalarmult', $secretKey, $publicKey);
+ }
+
+ /* Output validation: Forbid all-zero keys */
+ if (ParagonIE_Sodium_Core_Util::hashEquals($secretKey, str_repeat("\0", self::CRYPTO_BOX_SECRETKEYBYTES))) {
+ throw new SodiumException('Zero secret key is not allowed');
+ }
+ if (ParagonIE_Sodium_Core_Util::hashEquals($publicKey, str_repeat("\0", self::CRYPTO_BOX_PUBLICKEYBYTES))) {
+ throw new SodiumException('Zero public key is not allowed');
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::scalarmult($secretKey, $publicKey);
+ }
+ return ParagonIE_Sodium_Crypto::scalarmult($secretKey, $publicKey);
+ }
+
+ /**
+ * Calculate an X25519 public key from an X25519 secret key.
+ *
+ * @param string $secretKey
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress TooFewArguments
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_scalarmult_base($secretKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_BOX_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_BOX_SECRETKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_scalarmult_base($secretKey);
+ }
+ if (self::use_fallback('crypto_scalarmult_base')) {
+ return (string) call_user_func('\\Sodium\\crypto_scalarmult_base', $secretKey);
+ }
+ if (ParagonIE_Sodium_Core_Util::hashEquals($secretKey, str_repeat("\0", self::CRYPTO_BOX_SECRETKEYBYTES))) {
+ throw new SodiumException('Zero secret key is not allowed');
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::scalarmult_base($secretKey);
+ }
+ return ParagonIE_Sodium_Crypto::scalarmult_base($secretKey);
+ }
+
+ /**
+ * Authenticated symmetric-key encryption.
+ *
+ * Algorithm: XSalsa20-Poly1305
+ *
+ * @param string $plaintext The message you're encrypting
+ * @param string $nonce A Number to be used Once; must be 24 bytes
+ * @param string $key Symmetric encryption key
+ * @return string Ciphertext with Poly1305 MAC
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_secretbox($plaintext, $nonce, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_secretbox($plaintext, $nonce, $key);
+ }
+ if (self::use_fallback('crypto_secretbox')) {
+ return (string) call_user_func('\\Sodium\\crypto_secretbox', $plaintext, $nonce, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretbox($plaintext, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Crypto::secretbox($plaintext, $nonce, $key);
+ }
+
+ /**
+ * Decrypts a message previously encrypted with crypto_secretbox().
+ *
+ * @param string $ciphertext Ciphertext with Poly1305 MAC
+ * @param string $nonce A Number to be used Once; must be 24 bytes
+ * @param string $key Symmetric encryption key
+ * @return string Original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_secretbox_open($ciphertext, $nonce, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ /**
+ * @psalm-suppress InvalidReturnStatement
+ * @psalm-suppress FalsableReturnStatement
+ */
+ return sodium_crypto_secretbox_open($ciphertext, $nonce, $key);
+ }
+ if (self::use_fallback('crypto_secretbox_open')) {
+ return call_user_func('\\Sodium\\crypto_secretbox_open', $ciphertext, $nonce, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretbox_open($ciphertext, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Crypto::secretbox_open($ciphertext, $nonce, $key);
+ }
+
+ /**
+ * Return a secure random key for use with crypto_secretbox
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_secretbox_keygen()
+ {
+ return random_bytes(self::CRYPTO_SECRETBOX_KEYBYTES);
+ }
+
+ /**
+ * Authenticated symmetric-key encryption.
+ *
+ * Algorithm: XChaCha20-Poly1305
+ *
+ * @param string $plaintext The message you're encrypting
+ * @param string $nonce A Number to be used Once; must be 24 bytes
+ * @param string $key Symmetric encryption key
+ * @return string Ciphertext with Poly1305 MAC
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_secretbox_xchacha20poly1305($plaintext, $nonce, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($plaintext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretbox_xchacha20poly1305($plaintext, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Crypto::secretbox_xchacha20poly1305($plaintext, $nonce, $key);
+ }
+ /**
+ * Decrypts a message previously encrypted with crypto_secretbox_xchacha20poly1305().
+ *
+ * @param string $ciphertext Ciphertext with Poly1305 MAC
+ * @param string $nonce A Number to be used Once; must be 24 bytes
+ * @param string $key Symmetric encryption key
+ * @return string Original plaintext message
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($ciphertext, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_SECRETBOX_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SECRETBOX_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
+ }
+
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Crypto::secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key);
+ }
+
+ /**
+ * @param string $key
+ * @return array<int, string> Returns a state and a header.
+ * @throws Exception
+ * @throws SodiumException
+ */
+ public static function crypto_secretstream_xchacha20poly1305_init_push($key)
+ {
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_init_push($key);
+ }
+ return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_init_push($key);
+ }
+
+ /**
+ * @param string $header
+ * @param string $key
+ * @return string Returns a state.
+ * @throws Exception
+ */
+ public static function crypto_secretstream_xchacha20poly1305_init_pull($header, $key)
+ {
+ if (ParagonIE_Sodium_Core_Util::strlen($header) < self::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES) {
+ throw new SodiumException(
+ 'header size should be SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_HEADERBYTES bytes'
+ );
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_init_pull($key, $header);
+ }
+ return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_init_pull($key, $header);
+ }
+
+ /**
+ * @param string $state
+ * @param string $msg
+ * @param string $aad
+ * @param int $tag
+ * @return string
+ * @throws SodiumException
+ */
+ public static function crypto_secretstream_xchacha20poly1305_push(&$state, $msg, $aad = '', $tag = 0)
+ {
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_push(
+ $state,
+ $msg,
+ $aad,
+ $tag
+ );
+ }
+ return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_push(
+ $state,
+ $msg,
+ $aad,
+ $tag
+ );
+ }
+
+ /**
+ * @param string $state
+ * @param string $msg
+ * @param string $aad
+ * @return bool|array{0: string, 1: int}
+ * @throws SodiumException
+ */
+ public static function crypto_secretstream_xchacha20poly1305_pull(&$state, $msg, $aad = '')
+ {
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_pull(
+ $state,
+ $msg,
+ $aad
+ );
+ }
+ return ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_pull(
+ $state,
+ $msg,
+ $aad
+ );
+ }
+
+ /**
+ * @return string
+ * @throws Exception
+ */
+ public static function crypto_secretstream_xchacha20poly1305_keygen()
+ {
+ return random_bytes(self::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_KEYBYTES);
+ }
+
+ /**
+ * @param string $state
+ * @return void
+ * @throws SodiumException
+ */
+ public static function crypto_secretstream_xchacha20poly1305_rekey(&$state)
+ {
+ if (PHP_INT_SIZE === 4) {
+ ParagonIE_Sodium_Crypto32::secretstream_xchacha20poly1305_rekey($state);
+ } else {
+ ParagonIE_Sodium_Crypto::secretstream_xchacha20poly1305_rekey($state);
+ }
+ }
+
+ /**
+ * Calculates a SipHash-2-4 hash of a message for a given key.
+ *
+ * @param string $message Input message
+ * @param string $key SipHash-2-4 key
+ * @return string Hash
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_shorthash($message, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_SHORTHASH_KEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SHORTHASH_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_shorthash($message, $key);
+ }
+ if (self::use_fallback('crypto_shorthash')) {
+ return (string) call_user_func('\\Sodium\\crypto_shorthash', $message, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_SipHash::sipHash24($message, $key);
+ }
+ return ParagonIE_Sodium_Core_SipHash::sipHash24($message, $key);
+ }
+
+ /**
+ * Return a secure random key for use with crypto_shorthash
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_shorthash_keygen()
+ {
+ return random_bytes(self::CRYPTO_SHORTHASH_KEYBYTES);
+ }
+
+ /**
+ * Returns a signed message. You probably want crypto_sign_detached()
+ * instead, which only returns the signature.
+ *
+ * Algorithm: Ed25519 (EdDSA over Curve25519)
+ *
+ * @param string $message Message to be signed.
+ * @param string $secretKey Secret signing key.
+ * @return string Signed message (signature is prefixed).
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_sign($message, $secretKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SIGN_SECRETKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign($message, $secretKey);
+ }
+ if (self::use_fallback('crypto_sign')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign', $message, $secretKey);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::sign($message, $secretKey);
+ }
+ return ParagonIE_Sodium_Crypto::sign($message, $secretKey);
+ }
+
+ /**
+ * Validates a signed message then returns the message.
+ *
+ * @param string $signedMessage A signed message
+ * @param string $publicKey A public key
+ * @return string The original message (if the signature is
+ * valid for this public key)
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress MixedReturnStatement
+ */
+ public static function crypto_sign_open($signedMessage, $publicKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($signedMessage, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($signedMessage) < self::CRYPTO_SIGN_BYTES) {
+ throw new SodiumException('Argument 1 must be at least CRYPTO_SIGN_BYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_SIGN_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SIGN_PUBLICKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ /**
+ * @psalm-suppress InvalidReturnStatement
+ * @psalm-suppress FalsableReturnStatement
+ */
+ return sodium_crypto_sign_open($signedMessage, $publicKey);
+ }
+ if (self::use_fallback('crypto_sign_open')) {
+ return call_user_func('\\Sodium\\crypto_sign_open', $signedMessage, $publicKey);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::sign_open($signedMessage, $publicKey);
+ }
+ return ParagonIE_Sodium_Crypto::sign_open($signedMessage, $publicKey);
+ }
+
+ /**
+ * Generate a new random Ed25519 keypair.
+ *
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function crypto_sign_keypair()
+ {
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_keypair();
+ }
+ if (self::use_fallback('crypto_sign_keypair')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_keypair');
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_Ed25519::keypair();
+ }
+ return ParagonIE_Sodium_Core_Ed25519::keypair();
+ }
+
+ /**
+ * @param string $sk
+ * @param string $pk
+ * @return string
+ * @throws SodiumException
+ */
+ public static function crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($sk, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($pk, 'string', 1);
+ $sk = (string) $sk;
+ $pk = (string) $pk;
+
+ if (ParagonIE_Sodium_Core_Util::strlen($sk) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
+ throw new SodiumException('secretkey should be SODIUM_CRYPTO_SIGN_SECRETKEYBYTES bytes');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($pk) !== self::CRYPTO_SIGN_PUBLICKEYBYTES) {
+ throw new SodiumException('publickey should be SODIUM_CRYPTO_SIGN_PUBLICKEYBYTES bytes');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_keypair_from_secretkey_and_publickey($sk, $pk);
+ }
+ return $sk . $pk;
+ }
+
+ /**
+ * Generate an Ed25519 keypair from a seed.
+ *
+ * @param string $seed Input seed
+ * @return string Keypair
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_seed_keypair($seed)
+ {
+ ParagonIE_Sodium_Core_Util::declareScalarType($seed, 'string', 1);
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_seed_keypair($seed);
+ }
+ if (self::use_fallback('crypto_sign_keypair')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_seed_keypair', $seed);
+ }
+ $publicKey = '';
+ $secretKey = '';
+ if (PHP_INT_SIZE === 4) {
+ ParagonIE_Sodium_Core32_Ed25519::seed_keypair($publicKey, $secretKey, $seed);
+ } else {
+ ParagonIE_Sodium_Core_Ed25519::seed_keypair($publicKey, $secretKey, $seed);
+ }
+ return $secretKey . $publicKey;
+ }
+
+ /**
+ * Extract an Ed25519 public key from an Ed25519 keypair.
+ *
+ * @param string $keypair Keypair
+ * @return string Public key
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_publickey($keypair)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_SIGN_KEYPAIRBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_SIGN_KEYPAIRBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_publickey($keypair);
+ }
+ if (self::use_fallback('crypto_sign_publickey')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_publickey', $keypair);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_Ed25519::publickey($keypair);
+ }
+ return ParagonIE_Sodium_Core_Ed25519::publickey($keypair);
+ }
+
+ /**
+ * Calculate an Ed25519 public key from an Ed25519 secret key.
+ *
+ * @param string $secretKey Your Ed25519 secret key
+ * @return string The corresponding Ed25519 public key
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_publickey_from_secretkey($secretKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_SIGN_SECRETKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_publickey_from_secretkey($secretKey);
+ }
+ if (self::use_fallback('crypto_sign_publickey_from_secretkey')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_publickey_from_secretkey', $secretKey);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_Ed25519::publickey_from_secretkey($secretKey);
+ }
+ return ParagonIE_Sodium_Core_Ed25519::publickey_from_secretkey($secretKey);
+ }
+
+ /**
+ * Extract an Ed25519 secret key from an Ed25519 keypair.
+ *
+ * @param string $keypair Keypair
+ * @return string Secret key
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_secretkey($keypair)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($keypair, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== self::CRYPTO_SIGN_KEYPAIRBYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_SIGN_KEYPAIRBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_secretkey($keypair);
+ }
+ if (self::use_fallback('crypto_sign_secretkey')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_secretkey', $keypair);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_Ed25519::secretkey($keypair);
+ }
+ return ParagonIE_Sodium_Core_Ed25519::secretkey($keypair);
+ }
+
+ /**
+ * Calculate the Ed25519 signature of a message and return ONLY the signature.
+ *
+ * Algorithm: Ed25519 (EdDSA over Curve25519)
+ *
+ * @param string $message Message to be signed
+ * @param string $secretKey Secret signing key
+ * @return string Digital signature
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_detached($message, $secretKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($secretKey, 'string', 2);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($secretKey) !== self::CRYPTO_SIGN_SECRETKEYBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SIGN_SECRETKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_detached($message, $secretKey);
+ }
+ if (self::use_fallback('crypto_sign_detached')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_detached', $message, $secretKey);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::sign_detached($message, $secretKey);
+ }
+ return ParagonIE_Sodium_Crypto::sign_detached($message, $secretKey);
+ }
+
+ /**
+ * Verify the Ed25519 signature of a message.
+ *
+ * @param string $signature Digital sginature
+ * @param string $message Message to be verified
+ * @param string $publicKey Public key
+ * @return bool TRUE if this signature is good for this public key;
+ * FALSE otherwise
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_verify_detached($signature, $message, $publicKey)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($signature, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($publicKey, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($signature) !== self::CRYPTO_SIGN_BYTES) {
+ throw new SodiumException('Argument 1 must be CRYPTO_SIGN_BYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($publicKey) !== self::CRYPTO_SIGN_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SIGN_PUBLICKEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_sign_verify_detached($signature, $message, $publicKey);
+ }
+ if (self::use_fallback('crypto_sign_verify_detached')) {
+ return (bool) call_user_func(
+ '\\Sodium\\crypto_sign_verify_detached',
+ $signature,
+ $message,
+ $publicKey
+ );
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Crypto32::sign_verify_detached($signature, $message, $publicKey);
+ }
+ return ParagonIE_Sodium_Crypto::sign_verify_detached($signature, $message, $publicKey);
+ }
+
+ /**
+ * Convert an Ed25519 public key to a Curve25519 public key
+ *
+ * @param string $pk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_ed25519_pk_to_curve25519($pk)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($pk, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($pk) < self::CRYPTO_SIGN_PUBLICKEYBYTES) {
+ throw new SodiumException('Argument 1 must be at least CRYPTO_SIGN_PUBLICKEYBYTES long.');
+ }
+ if (self::useNewSodiumAPI()) {
+ if (is_callable('crypto_sign_ed25519_pk_to_curve25519')) {
+ return (string) sodium_crypto_sign_ed25519_pk_to_curve25519($pk);
+ }
+ }
+ if (self::use_fallback('crypto_sign_ed25519_pk_to_curve25519')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_ed25519_pk_to_curve25519', $pk);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_Ed25519::pk_to_curve25519($pk);
+ }
+ return ParagonIE_Sodium_Core_Ed25519::pk_to_curve25519($pk);
+ }
+
+ /**
+ * Convert an Ed25519 secret key to a Curve25519 secret key
+ *
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_sign_ed25519_sk_to_curve25519($sk)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($sk, 'string', 1);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($sk) < self::CRYPTO_SIGN_SEEDBYTES) {
+ throw new SodiumException('Argument 1 must be at least CRYPTO_SIGN_SEEDBYTES long.');
+ }
+ if (self::useNewSodiumAPI()) {
+ if (is_callable('crypto_sign_ed25519_sk_to_curve25519')) {
+ return sodium_crypto_sign_ed25519_sk_to_curve25519($sk);
+ }
+ }
+ if (self::use_fallback('crypto_sign_ed25519_sk_to_curve25519')) {
+ return (string) call_user_func('\\Sodium\\crypto_sign_ed25519_sk_to_curve25519', $sk);
+ }
+
+ $h = hash('sha512', ParagonIE_Sodium_Core_Util::substr($sk, 0, 32), true);
+ $h[0] = ParagonIE_Sodium_Core_Util::intToChr(
+ ParagonIE_Sodium_Core_Util::chrToInt($h[0]) & 248
+ );
+ $h[31] = ParagonIE_Sodium_Core_Util::intToChr(
+ (ParagonIE_Sodium_Core_Util::chrToInt($h[31]) & 127) | 64
+ );
+ return ParagonIE_Sodium_Core_Util::substr($h, 0, 32);
+ }
+
+ /**
+ * Expand a key and nonce into a keystream of pseudorandom bytes.
+ *
+ * @param int $len Number of bytes desired
+ * @param string $nonce Number to be used Once; must be 24 bytes
+ * @param string $key XSalsa20 key
+ * @return string Pseudorandom stream that can be XORed with messages
+ * to provide encryption (but not authentication; see
+ * Poly1305 or crypto_auth() for that, which is not
+ * optional for security)
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_stream($len, $nonce, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($len, 'int', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_STREAM_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_stream($len, $nonce, $key);
+ }
+ if (self::use_fallback('crypto_stream')) {
+ return (string) call_user_func('\\Sodium\\crypto_stream', $len, $nonce, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_XSalsa20::xsalsa20($len, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Core_XSalsa20::xsalsa20($len, $nonce, $key);
+ }
+
+ /**
+ * DANGER! UNAUTHENTICATED ENCRYPTION!
+ *
+ * Unless you are following expert advice, do not use this feature.
+ *
+ * Algorithm: XSalsa20
+ *
+ * This DOES NOT provide ciphertext integrity.
+ *
+ * @param string $message Plaintext message
+ * @param string $nonce Number to be used Once; must be 24 bytes
+ * @param string $key Encryption key
+ * @return string Encrypted text which is vulnerable to chosen-
+ * ciphertext attacks unless you implement some
+ * other mitigation to the ciphertext (i.e.
+ * Encrypt then MAC)
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_stream_xor($message, $nonce, $key)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_crypto_stream_xor($message, $nonce, $key);
+ }
+ if (self::use_fallback('crypto_stream_xor')) {
+ return (string) call_user_func('\\Sodium\\crypto_stream_xor', $message, $nonce, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_XSalsa20::xsalsa20_xor($message, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Core_XSalsa20::xsalsa20_xor($message, $nonce, $key);
+ }
+
+ /**
+ * Return a secure random key for use with crypto_stream
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_stream_keygen()
+ {
+ return random_bytes(self::CRYPTO_STREAM_KEYBYTES);
+ }
+
+
+ /**
+ * Expand a key and nonce into a keystream of pseudorandom bytes.
+ *
+ * @param int $len Number of bytes desired
+ * @param string $nonce Number to be used Once; must be 24 bytes
+ * @param string $key XChaCha20 key
+ * @param bool $dontFallback
+ * @return string Pseudorandom stream that can be XORed with messages
+ * to provide encryption (but not authentication; see
+ * Poly1305 or crypto_auth() for that, which is not
+ * optional for security)
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_stream_xchacha20($len, $nonce, $key, $dontFallback = false)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($len, 'int', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_XCHACHA20_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_XCHACHA20_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_XCHACHA20_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_STREAM_XCHACHA20_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_stream_xchacha20($len, $nonce, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_XChaCha20::stream($len, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Core_XChaCha20::stream($len, $nonce, $key);
+ }
+
+ /**
+ * DANGER! UNAUTHENTICATED ENCRYPTION!
+ *
+ * Unless you are following expert advice, do not use this feature.
+ *
+ * Algorithm: XChaCha20
+ *
+ * This DOES NOT provide ciphertext integrity.
+ *
+ * @param string $message Plaintext message
+ * @param string $nonce Number to be used Once; must be 24 bytes
+ * @param string $key Encryption key
+ * @return string Encrypted text which is vulnerable to chosen-
+ * ciphertext attacks unless you implement some
+ * other mitigation to the ciphertext (i.e.
+ * Encrypt then MAC)
+ * @param bool $dontFallback
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_stream_xchacha20_xor($message, $nonce, $key, $dontFallback = false)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 3);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_XCHACHA20_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_XCHACHA20_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_XCHACHA20_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_XCHACHA20_KEYBYTES long.');
+ }
+
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_stream_xchacha20_xor($message, $nonce, $key);
+ }
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_XChaCha20::streamXorIc($message, $nonce, $key);
+ }
+ return ParagonIE_Sodium_Core_XChaCha20::streamXorIc($message, $nonce, $key);
+ }
+
+ /**
+ * DANGER! UNAUTHENTICATED ENCRYPTION!
+ *
+ * Unless you are following expert advice, do not use this feature.
+ *
+ * Algorithm: XChaCha20
+ *
+ * This DOES NOT provide ciphertext integrity.
+ *
+ * @param string $message Plaintext message
+ * @param string $nonce Number to be used Once; must be 24 bytes
+ * @param int $counter
+ * @param string $key Encryption key
+ * @return string Encrypted text which is vulnerable to chosen-
+ * ciphertext attacks unless you implement some
+ * other mitigation to the ciphertext (i.e.
+ * Encrypt then MAC)
+ * @param bool $dontFallback
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key, $dontFallback = false)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($message, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($nonce, 'string', 2);
+ ParagonIE_Sodium_Core_Util::declareScalarType($counter, 'int', 3);
+ ParagonIE_Sodium_Core_Util::declareScalarType($key, 'string', 4);
+
+ /* Input validation: */
+ if (ParagonIE_Sodium_Core_Util::strlen($nonce) !== self::CRYPTO_STREAM_XCHACHA20_NONCEBYTES) {
+ throw new SodiumException('Argument 2 must be CRYPTO_SECRETBOX_XCHACHA20_NONCEBYTES long.');
+ }
+ if (ParagonIE_Sodium_Core_Util::strlen($key) !== self::CRYPTO_STREAM_XCHACHA20_KEYBYTES) {
+ throw new SodiumException('Argument 3 must be CRYPTO_SECRETBOX_XCHACHA20_KEYBYTES long.');
+ }
+
+ if (is_callable('sodium_crypto_stream_xchacha20_xor_ic') && !$dontFallback) {
+ return sodium_crypto_stream_xchacha20_xor_ic($message, $nonce, $counter, $key);
+ }
+
+ $ic = ParagonIE_Sodium_Core_Util::store64_le($counter);
+ if (PHP_INT_SIZE === 4) {
+ return ParagonIE_Sodium_Core32_XChaCha20::streamXorIc($message, $nonce, $key, $ic);
+ }
+ return ParagonIE_Sodium_Core_XChaCha20::streamXorIc($message, $nonce, $key, $ic);
+ }
+
+ /**
+ * Return a secure random key for use with crypto_stream_xchacha20
+ *
+ * @return string
+ * @throws Exception
+ * @throws Error
+ */
+ public static function crypto_stream_xchacha20_keygen()
+ {
+ return random_bytes(self::CRYPTO_STREAM_XCHACHA20_KEYBYTES);
+ }
+
+ /**
+ * Cache-timing-safe implementation of hex2bin().
+ *
+ * @param string $string Hexadecimal string
+ * @param string $ignore List of characters to ignore; useful for whitespace
+ * @return string Raw binary string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress TooFewArguments
+ * @psalm-suppress MixedArgument
+ */
+ public static function hex2bin($string, $ignore = '')
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($string, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($ignore, 'string', 2);
+
+ if (self::useNewSodiumAPI()) {
+ if (is_callable('sodium_hex2bin')) {
+ return (string) sodium_hex2bin($string, $ignore);
+ }
+ }
+ if (self::use_fallback('hex2bin')) {
+ return (string) call_user_func('\\Sodium\\hex2bin', $string, $ignore);
+ }
+ return ParagonIE_Sodium_Core_Util::hex2bin($string, $ignore);
+ }
+
+ /**
+ * Increase a string (little endian)
+ *
+ * @param string $var
+ *
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function increment(&$var)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($var, 'string', 1);
+
+ if (self::useNewSodiumAPI()) {
+ sodium_increment($var);
+ return;
+ }
+ if (self::use_fallback('increment')) {
+ $func = '\\Sodium\\increment';
+ $func($var);
+ return;
+ }
+
+ $len = ParagonIE_Sodium_Core_Util::strlen($var);
+ $c = 1;
+ $copy = '';
+ for ($i = 0; $i < $len; ++$i) {
+ $c += ParagonIE_Sodium_Core_Util::chrToInt(
+ ParagonIE_Sodium_Core_Util::substr($var, $i, 1)
+ );
+ $copy .= ParagonIE_Sodium_Core_Util::intToChr($c);
+ $c >>= 8;
+ }
+ $var = $copy;
+ }
+
+ /**
+ * @param string $str
+ * @return bool
+ *
+ * @throws SodiumException
+ */
+ public static function is_zero($str)
+ {
+ $d = 0;
+ for ($i = 0; $i < 32; ++$i) {
+ $d |= ParagonIE_Sodium_Core_Util::chrToInt($str[$i]);
+ }
+ return ((($d - 1) >> 31) & 1) === 1;
+ }
+
+ /**
+ * The equivalent to the libsodium minor version we aim to be compatible
+ * with (sans pwhash and memzero).
+ *
+ * @return int
+ */
+ public static function library_version_major()
+ {
+ if (self::useNewSodiumAPI() && defined('SODIUM_LIBRARY_MAJOR_VERSION')) {
+ return SODIUM_LIBRARY_MAJOR_VERSION;
+ }
+ if (self::use_fallback('library_version_major')) {
+ /** @psalm-suppress UndefinedFunction */
+ return (int) call_user_func('\\Sodium\\library_version_major');
+ }
+ return self::LIBRARY_VERSION_MAJOR;
+ }
+
+ /**
+ * The equivalent to the libsodium minor version we aim to be compatible
+ * with (sans pwhash and memzero).
+ *
+ * @return int
+ */
+ public static function library_version_minor()
+ {
+ if (self::useNewSodiumAPI() && defined('SODIUM_LIBRARY_MINOR_VERSION')) {
+ return SODIUM_LIBRARY_MINOR_VERSION;
+ }
+ if (self::use_fallback('library_version_minor')) {
+ /** @psalm-suppress UndefinedFunction */
+ return (int) call_user_func('\\Sodium\\library_version_minor');
+ }
+ return self::LIBRARY_VERSION_MINOR;
+ }
+
+ /**
+ * Compare two strings.
+ *
+ * @param string $left
+ * @param string $right
+ * @return int
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ */
+ public static function memcmp($left, $right)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($left, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($right, 'string', 2);
+
+ if (self::useNewSodiumAPI()) {
+ return sodium_memcmp($left, $right);
+ }
+ if (self::use_fallback('memcmp')) {
+ return (int) call_user_func('\\Sodium\\memcmp', $left, $right);
+ }
+ /** @var string $left */
+ /** @var string $right */
+ return ParagonIE_Sodium_Core_Util::memcmp($left, $right);
+ }
+
+ /**
+ * It's actually not possible to zero memory buffers in PHP. You need the
+ * native library for that.
+ *
+ * @param string|null $var
+ * @param-out string|null $var
+ *
+ * @return void
+ * @throws SodiumException (Unless libsodium is installed)
+ * @throws TypeError
+ * @psalm-suppress TooFewArguments
+ */
+ public static function memzero(&$var)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($var, 'string', 1);
+
+ if (self::useNewSodiumAPI()) {
+ /** @psalm-suppress MixedArgument */
+ sodium_memzero($var);
+ return;
+ }
+ if (self::use_fallback('memzero')) {
+ $func = '\\Sodium\\memzero';
+ $func($var);
+ if ($var === null) {
+ return;
+ }
+ }
+ // This is the best we can do.
+ throw new SodiumException(
+ 'This is not implemented in sodium_compat, as it is not possible to securely wipe memory from PHP. ' .
+ 'To fix this error, make sure libsodium is installed and the PHP extension is enabled.'
+ );
+ }
+
+ /**
+ * @param string $unpadded
+ * @param int $blockSize
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function pad($unpadded, $blockSize, $dontFallback = false)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($unpadded, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($blockSize, 'int', 2);
+
+ $unpadded = (string) $unpadded;
+ $blockSize = (int) $blockSize;
+
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return (string) sodium_pad($unpadded, $blockSize);
+ }
+
+ if ($blockSize <= 0) {
+ throw new SodiumException(
+ 'block size cannot be less than 1'
+ );
+ }
+ $unpadded_len = ParagonIE_Sodium_Core_Util::strlen($unpadded);
+ $xpadlen = ($blockSize - 1);
+ if (($blockSize & ($blockSize - 1)) === 0) {
+ $xpadlen -= $unpadded_len & ($blockSize - 1);
+ } else {
+ $xpadlen -= $unpadded_len % $blockSize;
+ }
+
+ $xpadded_len = $unpadded_len + $xpadlen;
+ $padded = str_repeat("\0", $xpadded_len - 1);
+ if ($unpadded_len > 0) {
+ $st = 1;
+ $i = 0;
+ $k = $unpadded_len;
+ for ($j = 0; $j <= $xpadded_len; ++$j) {
+ $i = (int) $i;
+ $k = (int) $k;
+ $st = (int) $st;
+ if ($j >= $unpadded_len) {
+ $padded[$j] = "\0";
+ } else {
+ $padded[$j] = $unpadded[$j];
+ }
+ /** @var int $k */
+ $k -= $st;
+ $st = (int) (~(
+ (
+ (
+ ($k >> 48)
+ |
+ ($k >> 32)
+ |
+ ($k >> 16)
+ |
+ $k
+ ) - 1
+ ) >> 16
+ )
+ ) & 1;
+ $i += $st;
+ }
+ }
+
+ $mask = 0;
+ $tail = $xpadded_len;
+ for ($i = 0; $i < $blockSize; ++$i) {
+ # barrier_mask = (unsigned char)
+ # (((i ^ xpadlen) - 1U) >> ((sizeof(size_t) - 1U) * CHAR_BIT));
+ $barrier_mask = (($i ^ $xpadlen) -1) >> ((PHP_INT_SIZE << 3) - 1);
+ # tail[-i] = (tail[-i] & mask) | (0x80 & barrier_mask);
+ $padded[$tail - $i] = ParagonIE_Sodium_Core_Util::intToChr(
+ (ParagonIE_Sodium_Core_Util::chrToInt($padded[$tail - $i]) & $mask)
+ |
+ (0x80 & $barrier_mask)
+ );
+ # mask |= barrier_mask;
+ $mask |= $barrier_mask;
+ }
+ return $padded;
+ }
+
+ /**
+ * @param string $padded
+ * @param int $blockSize
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function unpad($padded, $blockSize, $dontFallback = false)
+ {
+ /* Type checks: */
+ ParagonIE_Sodium_Core_Util::declareScalarType($padded, 'string', 1);
+ ParagonIE_Sodium_Core_Util::declareScalarType($blockSize, 'int', 2);
+
+ $padded = (string) $padded;
+ $blockSize = (int) $blockSize;
+
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return (string) sodium_unpad($padded, $blockSize);
+ }
+ if ($blockSize <= 0) {
+ throw new SodiumException('block size cannot be less than 1');
+ }
+ $padded_len = ParagonIE_Sodium_Core_Util::strlen($padded);
+ if ($padded_len < $blockSize) {
+ throw new SodiumException('invalid padding');
+ }
+
+ # tail = &padded[padded_len - 1U];
+ $tail = $padded_len - 1;
+
+ $acc = 0;
+ $valid = 0;
+ $pad_len = 0;
+
+ $found = 0;
+ for ($i = 0; $i < $blockSize; ++$i) {
+ # c = tail[-i];
+ $c = ParagonIE_Sodium_Core_Util::chrToInt($padded[$tail - $i]);
+
+ # is_barrier =
+ # (( (acc - 1U) & (pad_len - 1U) & ((c ^ 0x80) - 1U) ) >> 8) & 1U;
+ $is_barrier = (
+ (
+ ($acc - 1) & ($pad_len - 1) & (($c ^ 80) - 1)
+ ) >> 7
+ ) & 1;
+ $is_barrier &= ~$found;
+ $found |= $is_barrier;
+
+ # acc |= c;
+ $acc |= $c;
+
+ # pad_len |= i & (1U + ~is_barrier);
+ $pad_len |= $i & (1 + ~$is_barrier);
+
+ # valid |= (unsigned char) is_barrier;
+ $valid |= ($is_barrier & 0xff);
+ }
+ # unpadded_len = padded_len - 1U - pad_len;
+ $unpadded_len = $padded_len - 1 - $pad_len;
+ if ($valid !== 1) {
+ throw new SodiumException('invalid padding');
+ }
+ return ParagonIE_Sodium_Core_Util::substr($padded, 0, $unpadded_len);
+ }
+
+ /**
+ * Will sodium_compat run fast on the current hardware and PHP configuration?
+ *
+ * @return bool
+ */
+ public static function polyfill_is_fast()
+ {
+ if (extension_loaded('sodium')) {
+ return true;
+ }
+ if (extension_loaded('libsodium')) {
+ return true;
+ }
+ return PHP_INT_SIZE === 8;
+ }
+
+ /**
+ * Generate a string of bytes from the kernel's CSPRNG.
+ * Proudly uses /dev/urandom (if getrandom(2) is not available).
+ *
+ * @param int $numBytes
+ * @return string
+ * @throws Exception
+ * @throws TypeError
+ */
+ public static function randombytes_buf($numBytes)
+ {
+ /* Type checks: */
+ if (!is_int($numBytes)) {
+ if (is_numeric($numBytes)) {
+ $numBytes = (int) $numBytes;
+ } else {
+ throw new TypeError(
+ 'Argument 1 must be an integer, ' . gettype($numBytes) . ' given.'
+ );
+ }
+ }
+ /** @var positive-int $numBytes */
+ if (self::use_fallback('randombytes_buf')) {
+ return (string) call_user_func('\\Sodium\\randombytes_buf', $numBytes);
+ }
+ if ($numBytes < 0) {
+ throw new SodiumException("Number of bytes must be a positive integer");
+ }
+ return random_bytes($numBytes);
+ }
+
+ /**
+ * Generate an integer between 0 and $range (non-inclusive).
+ *
+ * @param int $range
+ * @return int
+ * @throws Exception
+ * @throws Error
+ * @throws TypeError
+ */
+ public static function randombytes_uniform($range)
+ {
+ /* Type checks: */
+ if (!is_int($range)) {
+ if (is_numeric($range)) {
+ $range = (int) $range;
+ } else {
+ throw new TypeError(
+ 'Argument 1 must be an integer, ' . gettype($range) . ' given.'
+ );
+ }
+ }
+ if (self::use_fallback('randombytes_uniform')) {
+ return (int) call_user_func('\\Sodium\\randombytes_uniform', $range);
+ }
+ return random_int(0, $range - 1);
+ }
+
+ /**
+ * Generate a random 16-bit integer.
+ *
+ * @return int
+ * @throws Exception
+ * @throws Error
+ * @throws TypeError
+ */
+ public static function randombytes_random16()
+ {
+ if (self::use_fallback('randombytes_random16')) {
+ return (int) call_user_func('\\Sodium\\randombytes_random16');
+ }
+ return random_int(0, 65535);
+ }
+
+ /**
+ * @param string $p
+ * @param bool $dontFallback
+ * @return bool
+ * @throws SodiumException
+ */
+ public static function ristretto255_is_valid_point($p, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_is_valid_point($p);
+ }
+ try {
+ $r = ParagonIE_Sodium_Core_Ristretto255::ristretto255_frombytes($p);
+ return $r['res'] === 0 &&
+ ParagonIE_Sodium_Core_Ristretto255::ristretto255_point_is_canonical($p) === 1;
+ } catch (SodiumException $ex) {
+ if ($ex->getMessage() === 'S is not canonical') {
+ return false;
+ }
+ throw $ex;
+ }
+ }
+
+ /**
+ * @param string $p
+ * @param string $q
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_add($p, $q, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_add($p, $q);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_add($p, $q);
+ }
+
+ /**
+ * @param string $p
+ * @param string $q
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_sub($p, $q, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_sub($p, $q);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_sub($p, $q);
+ }
+
+ /**
+ * @param string $r
+ * @param bool $dontFallback
+ * @return string
+ *
+ * @throws SodiumException
+ */
+ public static function ristretto255_from_hash($r, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_from_hash($r);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_from_hash($r);
+ }
+
+ /**
+ * @param bool $dontFallback
+ * @return string
+ *
+ * @throws SodiumException
+ */
+ public static function ristretto255_random($dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_random();
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_random();
+ }
+
+ /**
+ * @param bool $dontFallback
+ * @return string
+ *
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_random($dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_random();
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_random();
+ }
+
+ /**
+ * @param string $s
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_invert($s, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_invert($s);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_invert($s);
+ }
+ /**
+ * @param string $s
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_negate($s, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_negate($s);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_negate($s);
+ }
+
+ /**
+ * @param string $s
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_complement($s, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_complement($s);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_complement($s);
+ }
+
+ /**
+ * @param string $x
+ * @param string $y
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_add($x, $y, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_add($x, $y);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_add($x, $y);
+ }
+
+ /**
+ * @param string $x
+ * @param string $y
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_sub($x, $y, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_sub($x, $y);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_sub($x, $y);
+ }
+
+ /**
+ * @param string $x
+ * @param string $y
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_mul($x, $y, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_mul($x, $y);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::ristretto255_scalar_mul($x, $y);
+ }
+
+ /**
+ * @param string $n
+ * @param string $p
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalarmult_ristretto255($n, $p, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_scalarmult_ristretto255($n, $p);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::scalarmult_ristretto255($n, $p);
+ }
+
+ /**
+ * @param string $n
+ * @param string $p
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalarmult_ristretto255_base($n, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_scalarmult_ristretto255_base($n);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::scalarmult_ristretto255_base($n);
+ }
+
+ /**
+ * @param string $s
+ * @param bool $dontFallback
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_reduce($s, $dontFallback = false)
+ {
+ if (self::useNewSodiumAPI() && !$dontFallback) {
+ return sodium_crypto_core_ristretto255_scalar_reduce($s);
+ }
+ return ParagonIE_Sodium_Core_Ristretto255::sc_reduce($s);
+ }
+
+ /**
+ * Runtime testing method for 32-bit platforms.
+ *
+ * Usage: If runtime_speed_test() returns FALSE, then our 32-bit
+ * implementation is to slow to use safely without risking timeouts.
+ * If this happens, install sodium from PECL to get acceptable
+ * performance.
+ *
+ * @param int $iterations Number of multiplications to attempt
+ * @param int $maxTimeout Milliseconds
+ * @return bool TRUE if we're fast enough, FALSE is not
+ * @throws SodiumException
+ */
+ public static function runtime_speed_test($iterations, $maxTimeout)
+ {
+ if (self::polyfill_is_fast()) {
+ return true;
+ }
+ /** @var float $end */
+ $end = 0.0;
+ /** @var float $start */
+ $start = microtime(true);
+ /** @var ParagonIE_Sodium_Core32_Int64 $a */
+ $a = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));
+ for ($i = 0; $i < $iterations; ++$i) {
+ /** @var ParagonIE_Sodium_Core32_Int64 $b */
+ $b = ParagonIE_Sodium_Core32_Int64::fromInt(random_int(3, 1 << 16));
+ $a->mulInt64($b);
+ }
+ /** @var float $end */
+ $end = microtime(true);
+ /** @var int $diff */
+ $diff = (int) ceil(($end - $start) * 1000);
+ return $diff < $maxTimeout;
+ }
+
+ /**
+ * Add two numbers (little-endian unsigned), storing the value in the first
+ * parameter.
+ *
+ * This mutates $val.
+ *
+ * @param string $val
+ * @param string $addv
+ * @return void
+ * @throws SodiumException
+ */
+ public static function sub(&$val, $addv)
+ {
+ $val_len = ParagonIE_Sodium_Core_Util::strlen($val);
+ $addv_len = ParagonIE_Sodium_Core_Util::strlen($addv);
+ if ($val_len !== $addv_len) {
+ throw new SodiumException('values must have the same length');
+ }
+ $A = ParagonIE_Sodium_Core_Util::stringToIntArray($val);
+ $B = ParagonIE_Sodium_Core_Util::stringToIntArray($addv);
+
+ $c = 0;
+ for ($i = 0; $i < $val_len; $i++) {
+ $c = ($A[$i] - $B[$i] - $c);
+ $A[$i] = ($c & 0xff);
+ $c = ($c >> 8) & 1;
+ }
+ $val = ParagonIE_Sodium_Core_Util::intArrayToString($A);
+ }
+
+ /**
+ * This emulates libsodium's version_string() function, except ours is
+ * prefixed with 'polyfill-'.
+ *
+ * @return string
+ * @psalm-suppress MixedInferredReturnType
+ * @psalm-suppress UndefinedFunction
+ */
+ public static function version_string()
+ {
+ if (self::useNewSodiumAPI()) {
+ return (string) sodium_version_string();
+ }
+ if (self::use_fallback('version_string')) {
+ return (string) call_user_func('\\Sodium\\version_string');
+ }
+ return (string) self::VERSION_STRING;
+ }
+
+ /**
+ * Should we use the libsodium core function instead?
+ * This is always a good idea, if it's available. (Unless we're in the
+ * middle of running our unit test suite.)
+ *
+ * If ext/libsodium is available, use it. Return TRUE.
+ * Otherwise, we have to use the code provided herein. Return FALSE.
+ *
+ * @param string $sodium_func_name
+ *
+ * @return bool
+ */
+ protected static function use_fallback($sodium_func_name = '')
+ {
+ static $res = null;
+ if ($res === null) {
+ $res = extension_loaded('libsodium') && PHP_VERSION_ID >= 50300;
+ }
+ if ($res === false) {
+ // No libsodium installed
+ return false;
+ }
+ if (self::$disableFallbackForUnitTests) {
+ // Don't fallback. Use the PHP implementation.
+ return false;
+ }
+ if (!empty($sodium_func_name)) {
+ return is_callable('\\Sodium\\' . $sodium_func_name);
+ }
+ return true;
+ }
+
+ /**
+ * Libsodium as implemented in PHP 7.2
+ * and/or ext/sodium (via PECL)
+ *
+ * @ref https://wiki.php.net/rfc/libsodium
+ * @return bool
+ */
+ protected static function useNewSodiumAPI()
+ {
+ static $res = null;
+ if ($res === null) {
+ $res = PHP_VERSION_ID >= 70000 && extension_loaded('sodium');
+ }
+ if (self::$disableFallbackForUnitTests) {
+ // Don't fallback. Use the PHP implementation.
+ return false;
+ }
+ return (bool) $res;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php b/vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php
index 99bae98..6ad4ab7 100644
--- a/vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php
+++ b/vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php
@@ -1,790 +1,797 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core_BLAKE2b', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_Sodium_Core_BLAKE2b
- *
- * Based on the work of Devi Mandiri in devi/salt.
- */
-abstract class ParagonIE_Sodium_Core_BLAKE2b extends ParagonIE_Sodium_Core_Util
-{
- /**
- * @var SplFixedArray
- */
- protected static $iv;
-
- /**
- * @var array<int, array<int, int>>
- */
- protected static $sigma = array(
- array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
- array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
- array( 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
- array( 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
- array( 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
- array( 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
- array( 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
- array( 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
- array( 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
- array( 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0),
- array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
- array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3)
- );
-
- const BLOCKBYTES = 128;
- const OUTBYTES = 64;
- const KEYBYTES = 64;
-
- /**
- * Turn two 32-bit integers into a fixed array representing a 64-bit integer.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $high
- * @param int $low
- * @return SplFixedArray
- * @psalm-suppress MixedAssignment
- */
- public static function new64($high, $low)
- {
- $i64 = new SplFixedArray(2);
- $i64[0] = $high & 0xffffffff;
- $i64[1] = $low & 0xffffffff;
- return $i64;
- }
-
- /**
- * Convert an arbitrary number into an SplFixedArray of two 32-bit integers
- * that represents a 64-bit integer.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $num
- * @return SplFixedArray
- */
- protected static function to64($num)
- {
- list($hi, $lo) = self::numericTo64BitInteger($num);
- return self::new64($hi, $lo);
- }
-
- /**
- * Adds two 64-bit integers together, returning their sum as a SplFixedArray
- * containing two 32-bit integers (representing a 64-bit integer).
- *
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param SplFixedArray $y
- * @return SplFixedArray
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedOperand
- */
- protected static function add64($x, $y)
- {
- $l = ($x[1] + $y[1]) & 0xffffffff;
- return self::new64(
- (int) ($x[0] + $y[0] + (
- ($l < $x[1]) ? 1 : 0
- )),
- (int) $l
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param SplFixedArray $y
- * @param SplFixedArray $z
- * @return SplFixedArray
- */
- protected static function add364($x, $y, $z)
- {
- return self::add64($x, self::add64($y, $z));
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param SplFixedArray $y
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function xor64(SplFixedArray $x, SplFixedArray $y)
- {
- if (!is_numeric($x[0])) {
- throw new SodiumException('x[0] is not an integer');
- }
- if (!is_numeric($x[1])) {
- throw new SodiumException('x[1] is not an integer');
- }
- if (!is_numeric($y[0])) {
- throw new SodiumException('y[0] is not an integer');
- }
- if (!is_numeric($y[1])) {
- throw new SodiumException('y[1] is not an integer');
- }
- return self::new64(
- (int) (($x[0] ^ $y[0]) & 0xffffffff),
- (int) (($x[1] ^ $y[1]) & 0xffffffff)
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param int $c
- * @return SplFixedArray
- * @psalm-suppress MixedAssignment
- */
- public static function rotr64($x, $c)
- {
- if ($c >= 64) {
- $c %= 64;
- }
- if ($c >= 32) {
- /** @var int $tmp */
- $tmp = $x[0];
- $x[0] = $x[1];
- $x[1] = $tmp;
- $c -= 32;
- }
- if ($c === 0) {
- return $x;
- }
-
- $l0 = 0;
- $c = 64 - $c;
-
- if ($c < 32) {
- /** @var int $h0 */
- $h0 = ((int) ($x[0]) << $c) | (
- (
- (int) ($x[1]) & ((1 << $c) - 1)
- <<
- (32 - $c)
- ) >> (32 - $c)
- );
- /** @var int $l0 */
- $l0 = (int) ($x[1]) << $c;
- } else {
- /** @var int $h0 */
- $h0 = (int) ($x[1]) << ($c - 32);
- }
-
- $h1 = 0;
- $c1 = 64 - $c;
-
- if ($c1 < 32) {
- /** @var int $h1 */
- $h1 = (int) ($x[0]) >> $c1;
- /** @var int $l1 */
- $l1 = ((int) ($x[1]) >> $c1) | ((int) ($x[0]) & ((1 << $c1) - 1)) << (32 - $c1);
- } else {
- /** @var int $l1 */
- $l1 = (int) ($x[0]) >> ($c1 - 32);
- }
-
- return self::new64($h0 | $h1, $l0 | $l1);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @return int
- * @psalm-suppress MixedOperand
- */
- protected static function flatten64($x)
- {
- return (int) ($x[0] * 4294967296 + $x[1]);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param int $i
- * @return SplFixedArray
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayOffset
- */
- protected static function load64(SplFixedArray $x, $i)
- {
- /** @var int $l */
- $l = (int) ($x[$i])
- | ((int) ($x[$i+1]) << 8)
- | ((int) ($x[$i+2]) << 16)
- | ((int) ($x[$i+3]) << 24);
- /** @var int $h */
- $h = (int) ($x[$i+4])
- | ((int) ($x[$i+5]) << 8)
- | ((int) ($x[$i+6]) << 16)
- | ((int) ($x[$i+7]) << 24);
- return self::new64($h, $l);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param int $i
- * @param SplFixedArray $u
- * @return void
- * @psalm-suppress MixedAssignment
- */
- protected static function store64(SplFixedArray $x, $i, SplFixedArray $u)
- {
- $maxLength = $x->getSize() - 1;
- for ($j = 0; $j < 8; ++$j) {
- /*
- [0, 1, 2, 3, 4, 5, 6, 7]
- ... becomes ...
- [0, 0, 0, 0, 1, 1, 1, 1]
- */
- /** @var int $uIdx */
- $uIdx = ((7 - $j) & 4) >> 2;
- $x[$i] = ((int) ($u[$uIdx]) & 0xff);
- if (++$i > $maxLength) {
- return;
- }
- /** @psalm-suppress MixedOperand */
- $u[$uIdx] >>= 8;
- }
- }
-
- /**
- * This just sets the $iv static variable.
- *
- * @internal You should not use this directly from another application
- *
- * @return void
- */
- public static function pseudoConstructor()
- {
- static $called = false;
- if ($called) {
- return;
- }
- self::$iv = new SplFixedArray(8);
- self::$iv[0] = self::new64(0x6a09e667, 0xf3bcc908);
- self::$iv[1] = self::new64(0xbb67ae85, 0x84caa73b);
- self::$iv[2] = self::new64(0x3c6ef372, 0xfe94f82b);
- self::$iv[3] = self::new64(0xa54ff53a, 0x5f1d36f1);
- self::$iv[4] = self::new64(0x510e527f, 0xade682d1);
- self::$iv[5] = self::new64(0x9b05688c, 0x2b3e6c1f);
- self::$iv[6] = self::new64(0x1f83d9ab, 0xfb41bd6b);
- self::$iv[7] = self::new64(0x5be0cd19, 0x137e2179);
-
- $called = true;
- }
-
- /**
- * Returns a fresh BLAKE2 context.
- *
- * @internal You should not use this directly from another application
- *
- * @return SplFixedArray
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- */
- protected static function context()
- {
- $ctx = new SplFixedArray(6);
- $ctx[0] = new SplFixedArray(8); // h
- $ctx[1] = new SplFixedArray(2); // t
- $ctx[2] = new SplFixedArray(2); // f
- $ctx[3] = new SplFixedArray(256); // buf
- $ctx[4] = 0; // buflen
- $ctx[5] = 0; // last_node (uint8_t)
-
- for ($i = 8; $i--;) {
- $ctx[0][$i] = self::$iv[$i];
- }
- for ($i = 256; $i--;) {
- $ctx[3][$i] = 0;
- }
-
- $zero = self::new64(0, 0);
- $ctx[1][0] = $zero;
- $ctx[1][1] = $zero;
- $ctx[2][0] = $zero;
- $ctx[2][1] = $zero;
-
- return $ctx;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param SplFixedArray $buf
- * @return void
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- */
- protected static function compress(SplFixedArray $ctx, SplFixedArray $buf)
- {
- $m = new SplFixedArray(16);
- $v = new SplFixedArray(16);
-
- for ($i = 16; $i--;) {
- $m[$i] = self::load64($buf, $i << 3);
- }
-
- for ($i = 8; $i--;) {
- $v[$i] = $ctx[0][$i];
- }
-
- $v[ 8] = self::$iv[0];
- $v[ 9] = self::$iv[1];
- $v[10] = self::$iv[2];
- $v[11] = self::$iv[3];
-
- $v[12] = self::xor64($ctx[1][0], self::$iv[4]);
- $v[13] = self::xor64($ctx[1][1], self::$iv[5]);
- $v[14] = self::xor64($ctx[2][0], self::$iv[6]);
- $v[15] = self::xor64($ctx[2][1], self::$iv[7]);
-
- for ($r = 0; $r < 12; ++$r) {
- $v = self::G($r, 0, 0, 4, 8, 12, $v, $m);
- $v = self::G($r, 1, 1, 5, 9, 13, $v, $m);
- $v = self::G($r, 2, 2, 6, 10, 14, $v, $m);
- $v = self::G($r, 3, 3, 7, 11, 15, $v, $m);
- $v = self::G($r, 4, 0, 5, 10, 15, $v, $m);
- $v = self::G($r, 5, 1, 6, 11, 12, $v, $m);
- $v = self::G($r, 6, 2, 7, 8, 13, $v, $m);
- $v = self::G($r, 7, 3, 4, 9, 14, $v, $m);
- }
-
- for ($i = 8; $i--;) {
- $ctx[0][$i] = self::xor64(
- $ctx[0][$i], self::xor64($v[$i], $v[$i+8])
- );
- }
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param int $r
- * @param int $i
- * @param int $a
- * @param int $b
- * @param int $c
- * @param int $d
- * @param SplFixedArray $v
- * @param SplFixedArray $m
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayOffset
- */
- public static function G($r, $i, $a, $b, $c, $d, SplFixedArray $v, SplFixedArray $m)
- {
- $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][$i << 1]]);
- $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 32);
- $v[$c] = self::add64($v[$c], $v[$d]);
- $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 24);
- $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][($i << 1) + 1]]);
- $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 16);
- $v[$c] = self::add64($v[$c], $v[$d]);
- $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 63);
- return $v;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param int $inc
- * @return void
- * @throws SodiumException
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- */
- public static function increment_counter($ctx, $inc)
- {
- if ($inc < 0) {
- throw new SodiumException('Increasing by a negative number makes no sense.');
- }
- $t = self::to64($inc);
- # S->t is $ctx[1] in our implementation
-
- # S->t[0] = ( uint64_t )( t >> 0 );
- $ctx[1][0] = self::add64($ctx[1][0], $t);
-
- # S->t[1] += ( S->t[0] < inc );
- if (self::flatten64($ctx[1][0]) < $inc) {
- $ctx[1][1] = self::add64($ctx[1][1], self::to64(1));
- }
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param SplFixedArray $p
- * @param int $plen
- * @return void
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- * @psalm-suppress MixedOperand
- */
- public static function update(SplFixedArray $ctx, SplFixedArray $p, $plen)
- {
- self::pseudoConstructor();
-
- $offset = 0;
- while ($plen > 0) {
- $left = $ctx[4];
- $fill = 256 - $left;
-
- if ($plen > $fill) {
- # memcpy( S->buf + left, in, fill ); /* Fill buffer */
- for ($i = $fill; $i--;) {
- $ctx[3][$i + $left] = $p[$i + $offset];
- }
-
- # S->buflen += fill;
- $ctx[4] += $fill;
-
- # blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
- self::increment_counter($ctx, 128);
-
- # blake2b_compress( S, S->buf ); /* Compress */
- self::compress($ctx, $ctx[3]);
-
- # memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES ); /* Shift buffer left */
- for ($i = 128; $i--;) {
- $ctx[3][$i] = $ctx[3][$i + 128];
- }
-
- # S->buflen -= BLAKE2B_BLOCKBYTES;
- $ctx[4] -= 128;
-
- # in += fill;
- $offset += $fill;
-
- # inlen -= fill;
- $plen -= $fill;
- } else {
- for ($i = $plen; $i--;) {
- $ctx[3][$i + $left] = $p[$i + $offset];
- }
- $ctx[4] += $plen;
- $offset += $plen;
- $plen -= $plen;
- }
- }
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param SplFixedArray $out
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- * @psalm-suppress MixedOperand
- */
- public static function finish(SplFixedArray $ctx, SplFixedArray $out)
- {
- self::pseudoConstructor();
- if ($ctx[4] > 128) {
- self::increment_counter($ctx, 128);
- self::compress($ctx, $ctx[3]);
- $ctx[4] -= 128;
- if ($ctx[4] > 128) {
- throw new SodiumException('Failed to assert that buflen <= 128 bytes');
- }
- for ($i = $ctx[4]; $i--;) {
- $ctx[3][$i] = $ctx[3][$i + 128];
- }
- }
-
- self::increment_counter($ctx, $ctx[4]);
- $ctx[2][0] = self::new64(0xffffffff, 0xffffffff);
-
- for ($i = 256 - $ctx[4]; $i--;) {
- $ctx[3][$i+$ctx[4]] = 0;
- }
-
- self::compress($ctx, $ctx[3]);
-
- $i = (int) (($out->getSize() - 1) / 8);
- for (; $i >= 0; --$i) {
- self::store64($out, $i << 3, $ctx[0][$i]);
- }
- return $out;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray|null $key
- * @param int $outlen
- * @param SplFixedArray|null $salt
- * @param SplFixedArray|null $personal
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- */
- public static function init(
- $key = null,
- $outlen = 64,
- $salt = null,
- $personal = null
- ) {
- self::pseudoConstructor();
- $klen = 0;
-
- if ($key !== null) {
- if (count($key) > 64) {
- throw new SodiumException('Invalid key size');
- }
- $klen = count($key);
- }
-
- if ($outlen > 64) {
- throw new SodiumException('Invalid output size');
- }
-
- $ctx = self::context();
-
- $p = new SplFixedArray(64);
- // Zero our param buffer...
- for ($i = 64; --$i;) {
- $p[$i] = 0;
- }
-
- $p[0] = $outlen; // digest_length
- $p[1] = $klen; // key_length
- $p[2] = 1; // fanout
- $p[3] = 1; // depth
-
- if ($salt instanceof SplFixedArray) {
- // salt: [32] through [47]
- for ($i = 0; $i < 16; ++$i) {
- $p[32 + $i] = (int) $salt[$i];
- }
- }
- if ($personal instanceof SplFixedArray) {
- // personal: [48] through [63]
- for ($i = 0; $i < 16; ++$i) {
- $p[48 + $i] = (int) $personal[$i];
- }
- }
-
- $ctx[0][0] = self::xor64(
- $ctx[0][0],
- self::load64($p, 0)
- );
- if ($salt instanceof SplFixedArray || $personal instanceof SplFixedArray) {
- // We need to do what blake2b_init_param() does:
- for ($i = 1; $i < 8; ++$i) {
- $ctx[0][$i] = self::xor64(
- $ctx[0][$i],
- self::load64($p, $i << 3)
- );
- }
- }
-
- if ($klen > 0 && $key instanceof SplFixedArray) {
- $block = new SplFixedArray(128);
- for ($i = 128; $i--;) {
- $block[$i] = 0;
- }
- for ($i = $klen; $i--;) {
- $block[$i] = $key[$i];
- }
- self::update($ctx, $block, 128);
- $ctx[4] = 128;
- }
-
- return $ctx;
- }
-
- /**
- * Convert a string into an SplFixedArray of integers
- *
- * @internal You should not use this directly from another application
- *
- * @param string $str
- * @return SplFixedArray
- * @psalm-suppress MixedArgumentTypeCoercion
- */
- public static function stringToSplFixedArray($str = '')
- {
- $values = unpack('C*', $str);
- return SplFixedArray::fromArray(array_values($values));
- }
-
- /**
- * Convert an SplFixedArray of integers into a string
- *
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $a
- * @return string
- * @throws TypeError
- */
- public static function SplFixedArrayToString(SplFixedArray $a)
- {
- /**
- * @var array<int, int|string> $arr
- */
- $arr = $a->toArray();
- $c = $a->count();
- array_unshift($arr, str_repeat('C', $c));
- return (string) (call_user_func_array('pack', $arr));
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @return string
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- * @psalm-suppress MixedMethodCall
- */
- public static function contextToString(SplFixedArray $ctx)
- {
- $str = '';
- /** @var array<int, array<int, int>> $ctxA */
- $ctxA = $ctx[0]->toArray();
-
- # uint64_t h[8];
- for ($i = 0; $i < 8; ++$i) {
- $str .= self::store32_le($ctxA[$i][1]);
- $str .= self::store32_le($ctxA[$i][0]);
- }
-
- # uint64_t t[2];
- # uint64_t f[2];
- for ($i = 1; $i < 3; ++$i) {
- $ctxA = $ctx[$i]->toArray();
- $str .= self::store32_le($ctxA[0][1]);
- $str .= self::store32_le($ctxA[0][0]);
- $str .= self::store32_le($ctxA[1][1]);
- $str .= self::store32_le($ctxA[1][0]);
- }
-
- # uint8_t buf[2 * 128];
- $str .= self::SplFixedArrayToString($ctx[3]);
-
- /** @var int $ctx4 */
- $ctx4 = (int) $ctx[4];
-
- # size_t buflen;
- $str .= implode('', array(
- self::intToChr($ctx4 & 0xff),
- self::intToChr(($ctx4 >> 8) & 0xff),
- self::intToChr(($ctx4 >> 16) & 0xff),
- self::intToChr(($ctx4 >> 24) & 0xff),
- self::intToChr(($ctx4 >> 32) & 0xff),
- self::intToChr(($ctx4 >> 40) & 0xff),
- self::intToChr(($ctx4 >> 48) & 0xff),
- self::intToChr(($ctx4 >> 56) & 0xff)
- ));
- # uint8_t last_node;
- return $str . self::intToChr($ctx[5]) . str_repeat("\x00", 23);
- }
-
- /**
- * Creates an SplFixedArray containing other SplFixedArray elements, from
- * a string (compatible with \Sodium\crypto_generichash_{init, update, final})
- *
- * @internal You should not use this directly from another application
- *
- * @param string $string
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArrayAssignment
- */
- public static function stringToContext($string)
- {
- $ctx = self::context();
-
- # uint64_t h[8];
- for ($i = 0; $i < 8; ++$i) {
- $ctx[0][$i] = SplFixedArray::fromArray(
- array(
- self::load_4(
- self::substr($string, (($i << 3) + 4), 4)
- ),
- self::load_4(
- self::substr($string, (($i << 3) + 0), 4)
- )
- )
- );
- }
-
- # uint64_t t[2];
- # uint64_t f[2];
- for ($i = 1; $i < 3; ++$i) {
- $ctx[$i][1] = SplFixedArray::fromArray(
- array(
- self::load_4(self::substr($string, 76 + (($i - 1) << 4), 4)),
- self::load_4(self::substr($string, 72 + (($i - 1) << 4), 4))
- )
- );
- $ctx[$i][0] = SplFixedArray::fromArray(
- array(
- self::load_4(self::substr($string, 68 + (($i - 1) << 4), 4)),
- self::load_4(self::substr($string, 64 + (($i - 1) << 4), 4))
- )
- );
- }
-
- # uint8_t buf[2 * 128];
- $ctx[3] = self::stringToSplFixedArray(self::substr($string, 96, 256));
-
- # uint8_t buf[2 * 128];
- $int = 0;
- for ($i = 0; $i < 8; ++$i) {
- $int |= self::chrToInt($string[352 + $i]) << ($i << 3);
- }
- $ctx[4] = $int;
-
- return $ctx;
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core_BLAKE2b', false)) {
+ return;
+}
+
+/**
+ * Class ParagonIE_Sodium_Core_BLAKE2b
+ *
+ * Based on the work of Devi Mandiri in devi/salt.
+ */
+abstract class ParagonIE_Sodium_Core_BLAKE2b extends ParagonIE_Sodium_Core_Util
+{
+ /**
+ * @var SplFixedArray
+ */
+ protected static $iv;
+
+ /**
+ * @var array<int, array<int, int>>
+ */
+ protected static $sigma = array(
+ array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
+ array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
+ array( 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
+ array( 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
+ array( 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
+ array( 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
+ array( 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
+ array( 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
+ array( 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
+ array( 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0),
+ array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
+ array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3)
+ );
+
+ const BLOCKBYTES = 128;
+ const OUTBYTES = 64;
+ const KEYBYTES = 64;
+
+ /**
+ * Turn two 32-bit integers into a fixed array representing a 64-bit integer.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $high
+ * @param int $low
+ * @return SplFixedArray
+ * @psalm-suppress MixedAssignment
+ */
+ public static function new64($high, $low)
+ {
+ if (PHP_INT_SIZE === 4) {
+ throw new SodiumException("Error, use 32-bit");
+ }
+ $i64 = new SplFixedArray(2);
+ $i64[0] = $high & 0xffffffff;
+ $i64[1] = $low & 0xffffffff;
+ return $i64;
+ }
+
+ /**
+ * Convert an arbitrary number into an SplFixedArray of two 32-bit integers
+ * that represents a 64-bit integer.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $num
+ * @return SplFixedArray
+ */
+ protected static function to64($num)
+ {
+ list($hi, $lo) = self::numericTo64BitInteger($num);
+ return self::new64($hi, $lo);
+ }
+
+ /**
+ * Adds two 64-bit integers together, returning their sum as a SplFixedArray
+ * containing two 32-bit integers (representing a 64-bit integer).
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param SplFixedArray $y
+ * @return SplFixedArray
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedOperand
+ */
+ protected static function add64($x, $y)
+ {
+ if (PHP_INT_SIZE === 4) {
+ throw new SodiumException("Error, use 32-bit");
+ }
+ $l = ($x[1] + $y[1]) & 0xffffffff;
+ return self::new64(
+ (int) ($x[0] + $y[0] + (
+ ($l < $x[1]) ? 1 : 0
+ )),
+ (int) $l
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param SplFixedArray $y
+ * @param SplFixedArray $z
+ * @return SplFixedArray
+ */
+ protected static function add364($x, $y, $z)
+ {
+ return self::add64($x, self::add64($y, $z));
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param SplFixedArray $y
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function xor64(SplFixedArray $x, SplFixedArray $y)
+ {
+ if (PHP_INT_SIZE === 4) {
+ throw new SodiumException("Error, use 32-bit");
+ }
+ if (!is_numeric($x[0])) {
+ throw new SodiumException('x[0] is not an integer');
+ }
+ if (!is_numeric($x[1])) {
+ throw new SodiumException('x[1] is not an integer');
+ }
+ if (!is_numeric($y[0])) {
+ throw new SodiumException('y[0] is not an integer');
+ }
+ if (!is_numeric($y[1])) {
+ throw new SodiumException('y[1] is not an integer');
+ }
+ return self::new64(
+ (int) (($x[0] ^ $y[0]) & 0xffffffff),
+ (int) (($x[1] ^ $y[1]) & 0xffffffff)
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param int $c
+ * @return SplFixedArray
+ * @psalm-suppress MixedAssignment
+ */
+ public static function rotr64($x, $c)
+ {
+ if (PHP_INT_SIZE === 4) {
+ throw new SodiumException("Error, use 32-bit");
+ }
+ if ($c >= 64) {
+ $c %= 64;
+ }
+ if ($c >= 32) {
+ /** @var int $tmp */
+ $tmp = $x[0];
+ $x[0] = $x[1];
+ $x[1] = $tmp;
+ $c -= 32;
+ }
+ if ($c === 0) {
+ return $x;
+ }
+
+ $l0 = 0;
+ $c = 64 - $c;
+
+ /** @var int $c */
+ if ($c < 32) {
+ $h0 = ((int) ($x[0]) << $c) | (
+ (
+ (int) ($x[1]) & ((1 << $c) - 1)
+ <<
+ (32 - $c)
+ ) >> (32 - $c)
+ );
+ $l0 = (int) ($x[1]) << $c;
+ } else {
+ $h0 = (int) ($x[1]) << ($c - 32);
+ }
+
+ $h1 = 0;
+ $c1 = 64 - $c;
+
+ if ($c1 < 32) {
+ $h1 = (int) ($x[0]) >> $c1;
+ $l1 = ((int) ($x[1]) >> $c1) | ((int) ($x[0]) & ((1 << $c1) - 1)) << (32 - $c1);
+ } else {
+ $l1 = (int) ($x[0]) >> ($c1 - 32);
+ }
+
+ return self::new64($h0 | $h1, $l0 | $l1);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @return int
+ * @psalm-suppress MixedOperand
+ */
+ protected static function flatten64($x)
+ {
+ return (int) ($x[0] * 4294967296 + $x[1]);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param int $i
+ * @return SplFixedArray
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayOffset
+ */
+ protected static function load64(SplFixedArray $x, $i)
+ {
+ /** @var int $l */
+ $l = (int) ($x[$i])
+ | ((int) ($x[$i+1]) << 8)
+ | ((int) ($x[$i+2]) << 16)
+ | ((int) ($x[$i+3]) << 24);
+ /** @var int $h */
+ $h = (int) ($x[$i+4])
+ | ((int) ($x[$i+5]) << 8)
+ | ((int) ($x[$i+6]) << 16)
+ | ((int) ($x[$i+7]) << 24);
+ return self::new64($h, $l);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param int $i
+ * @param SplFixedArray $u
+ * @return void
+ * @psalm-suppress MixedAssignment
+ */
+ protected static function store64(SplFixedArray $x, $i, SplFixedArray $u)
+ {
+ $maxLength = $x->getSize() - 1;
+ for ($j = 0; $j < 8; ++$j) {
+ /*
+ [0, 1, 2, 3, 4, 5, 6, 7]
+ ... becomes ...
+ [0, 0, 0, 0, 1, 1, 1, 1]
+ */
+ /** @var int $uIdx */
+ $uIdx = ((7 - $j) & 4) >> 2;
+ $x[$i] = ((int) ($u[$uIdx]) & 0xff);
+ if (++$i > $maxLength) {
+ return;
+ }
+ /** @psalm-suppress MixedOperand */
+ $u[$uIdx] >>= 8;
+ }
+ }
+
+ /**
+ * This just sets the $iv static variable.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @return void
+ */
+ public static function pseudoConstructor()
+ {
+ static $called = false;
+ if ($called) {
+ return;
+ }
+ self::$iv = new SplFixedArray(8);
+ self::$iv[0] = self::new64(0x6a09e667, 0xf3bcc908);
+ self::$iv[1] = self::new64(0xbb67ae85, 0x84caa73b);
+ self::$iv[2] = self::new64(0x3c6ef372, 0xfe94f82b);
+ self::$iv[3] = self::new64(0xa54ff53a, 0x5f1d36f1);
+ self::$iv[4] = self::new64(0x510e527f, 0xade682d1);
+ self::$iv[5] = self::new64(0x9b05688c, 0x2b3e6c1f);
+ self::$iv[6] = self::new64(0x1f83d9ab, 0xfb41bd6b);
+ self::$iv[7] = self::new64(0x5be0cd19, 0x137e2179);
+
+ $called = true;
+ }
+
+ /**
+ * Returns a fresh BLAKE2 context.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @return SplFixedArray
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ */
+ protected static function context()
+ {
+ $ctx = new SplFixedArray(6);
+ $ctx[0] = new SplFixedArray(8); // h
+ $ctx[1] = new SplFixedArray(2); // t
+ $ctx[2] = new SplFixedArray(2); // f
+ $ctx[3] = new SplFixedArray(256); // buf
+ $ctx[4] = 0; // buflen
+ $ctx[5] = 0; // last_node (uint8_t)
+
+ for ($i = 8; $i--;) {
+ $ctx[0][$i] = self::$iv[$i];
+ }
+ for ($i = 256; $i--;) {
+ $ctx[3][$i] = 0;
+ }
+
+ $zero = self::new64(0, 0);
+ $ctx[1][0] = $zero;
+ $ctx[1][1] = $zero;
+ $ctx[2][0] = $zero;
+ $ctx[2][1] = $zero;
+
+ return $ctx;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param SplFixedArray $buf
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ */
+ protected static function compress(SplFixedArray $ctx, SplFixedArray $buf)
+ {
+ $m = new SplFixedArray(16);
+ $v = new SplFixedArray(16);
+
+ for ($i = 16; $i--;) {
+ $m[$i] = self::load64($buf, $i << 3);
+ }
+
+ for ($i = 8; $i--;) {
+ $v[$i] = $ctx[0][$i];
+ }
+
+ $v[ 8] = self::$iv[0];
+ $v[ 9] = self::$iv[1];
+ $v[10] = self::$iv[2];
+ $v[11] = self::$iv[3];
+
+ $v[12] = self::xor64($ctx[1][0], self::$iv[4]);
+ $v[13] = self::xor64($ctx[1][1], self::$iv[5]);
+ $v[14] = self::xor64($ctx[2][0], self::$iv[6]);
+ $v[15] = self::xor64($ctx[2][1], self::$iv[7]);
+
+ for ($r = 0; $r < 12; ++$r) {
+ $v = self::G($r, 0, 0, 4, 8, 12, $v, $m);
+ $v = self::G($r, 1, 1, 5, 9, 13, $v, $m);
+ $v = self::G($r, 2, 2, 6, 10, 14, $v, $m);
+ $v = self::G($r, 3, 3, 7, 11, 15, $v, $m);
+ $v = self::G($r, 4, 0, 5, 10, 15, $v, $m);
+ $v = self::G($r, 5, 1, 6, 11, 12, $v, $m);
+ $v = self::G($r, 6, 2, 7, 8, 13, $v, $m);
+ $v = self::G($r, 7, 3, 4, 9, 14, $v, $m);
+ }
+
+ for ($i = 8; $i--;) {
+ $ctx[0][$i] = self::xor64(
+ $ctx[0][$i], self::xor64($v[$i], $v[$i+8])
+ );
+ }
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int $r
+ * @param int $i
+ * @param int $a
+ * @param int $b
+ * @param int $c
+ * @param int $d
+ * @param SplFixedArray $v
+ * @param SplFixedArray $m
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayOffset
+ */
+ public static function G($r, $i, $a, $b, $c, $d, SplFixedArray $v, SplFixedArray $m)
+ {
+ $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][$i << 1]]);
+ $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 32);
+ $v[$c] = self::add64($v[$c], $v[$d]);
+ $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 24);
+ $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][($i << 1) + 1]]);
+ $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 16);
+ $v[$c] = self::add64($v[$c], $v[$d]);
+ $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 63);
+ return $v;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param int $inc
+ * @return void
+ * @throws SodiumException
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ */
+ public static function increment_counter($ctx, $inc)
+ {
+ if ($inc < 0) {
+ throw new SodiumException('Increasing by a negative number makes no sense.');
+ }
+ $t = self::to64($inc);
+ # S->t is $ctx[1] in our implementation
+
+ # S->t[0] = ( uint64_t )( t >> 0 );
+ $ctx[1][0] = self::add64($ctx[1][0], $t);
+
+ # S->t[1] += ( S->t[0] < inc );
+ if (self::flatten64($ctx[1][0]) < $inc) {
+ $ctx[1][1] = self::add64($ctx[1][1], self::to64(1));
+ }
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param SplFixedArray $p
+ * @param int $plen
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ * @psalm-suppress MixedOperand
+ */
+ public static function update(SplFixedArray $ctx, SplFixedArray $p, $plen)
+ {
+ self::pseudoConstructor();
+
+ $offset = 0;
+ while ($plen > 0) {
+ $left = $ctx[4];
+ $fill = 256 - $left;
+
+ if ($plen > $fill) {
+ # memcpy( S->buf + left, in, fill ); /* Fill buffer */
+ for ($i = $fill; $i--;) {
+ $ctx[3][$i + $left] = $p[$i + $offset];
+ }
+
+ # S->buflen += fill;
+ $ctx[4] += $fill;
+
+ # blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
+ self::increment_counter($ctx, 128);
+
+ # blake2b_compress( S, S->buf ); /* Compress */
+ self::compress($ctx, $ctx[3]);
+
+ # memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES ); /* Shift buffer left */
+ for ($i = 128; $i--;) {
+ $ctx[3][$i] = $ctx[3][$i + 128];
+ }
+
+ # S->buflen -= BLAKE2B_BLOCKBYTES;
+ $ctx[4] -= 128;
+
+ # in += fill;
+ $offset += $fill;
+
+ # inlen -= fill;
+ $plen -= $fill;
+ } else {
+ for ($i = $plen; $i--;) {
+ $ctx[3][$i + $left] = $p[$i + $offset];
+ }
+ $ctx[4] += $plen;
+ $offset += $plen;
+ $plen -= $plen;
+ }
+ }
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param SplFixedArray $out
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ * @psalm-suppress MixedOperand
+ */
+ public static function finish(SplFixedArray $ctx, SplFixedArray $out)
+ {
+ self::pseudoConstructor();
+ if ($ctx[4] > 128) {
+ self::increment_counter($ctx, 128);
+ self::compress($ctx, $ctx[3]);
+ $ctx[4] -= 128;
+ if ($ctx[4] > 128) {
+ throw new SodiumException('Failed to assert that buflen <= 128 bytes');
+ }
+ for ($i = $ctx[4]; $i--;) {
+ $ctx[3][$i] = $ctx[3][$i + 128];
+ }
+ }
+
+ self::increment_counter($ctx, $ctx[4]);
+ $ctx[2][0] = self::new64(0xffffffff, 0xffffffff);
+
+ for ($i = 256 - $ctx[4]; $i--;) {
+ $ctx[3][$i+$ctx[4]] = 0;
+ }
+
+ self::compress($ctx, $ctx[3]);
+
+ $i = (int) (($out->getSize() - 1) / 8);
+ for (; $i >= 0; --$i) {
+ self::store64($out, $i << 3, $ctx[0][$i]);
+ }
+ return $out;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray|null $key
+ * @param int $outlen
+ * @param SplFixedArray|null $salt
+ * @param SplFixedArray|null $personal
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ */
+ public static function init(
+ $key = null,
+ $outlen = 64,
+ $salt = null,
+ $personal = null
+ ) {
+ self::pseudoConstructor();
+ $klen = 0;
+
+ if ($key !== null) {
+ if (count($key) > 64) {
+ throw new SodiumException('Invalid key size');
+ }
+ $klen = count($key);
+ }
+
+ if ($outlen > 64) {
+ throw new SodiumException('Invalid output size');
+ }
+
+ $ctx = self::context();
+
+ $p = new SplFixedArray(64);
+ // Zero our param buffer...
+ for ($i = 64; --$i;) {
+ $p[$i] = 0;
+ }
+
+ $p[0] = $outlen; // digest_length
+ $p[1] = $klen; // key_length
+ $p[2] = 1; // fanout
+ $p[3] = 1; // depth
+
+ if ($salt instanceof SplFixedArray) {
+ // salt: [32] through [47]
+ for ($i = 0; $i < 16; ++$i) {
+ $p[32 + $i] = (int) $salt[$i];
+ }
+ }
+ if ($personal instanceof SplFixedArray) {
+ // personal: [48] through [63]
+ for ($i = 0; $i < 16; ++$i) {
+ $p[48 + $i] = (int) $personal[$i];
+ }
+ }
+
+ $ctx[0][0] = self::xor64(
+ $ctx[0][0],
+ self::load64($p, 0)
+ );
+ if ($salt instanceof SplFixedArray || $personal instanceof SplFixedArray) {
+ // We need to do what blake2b_init_param() does:
+ for ($i = 1; $i < 8; ++$i) {
+ $ctx[0][$i] = self::xor64(
+ $ctx[0][$i],
+ self::load64($p, $i << 3)
+ );
+ }
+ }
+
+ if ($klen > 0 && $key instanceof SplFixedArray) {
+ $block = new SplFixedArray(128);
+ for ($i = 128; $i--;) {
+ $block[$i] = 0;
+ }
+ for ($i = $klen; $i--;) {
+ $block[$i] = $key[$i];
+ }
+ self::update($ctx, $block, 128);
+ $ctx[4] = 128;
+ }
+
+ return $ctx;
+ }
+
+ /**
+ * Convert a string into an SplFixedArray of integers
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $str
+ * @return SplFixedArray
+ * @psalm-suppress MixedArgumentTypeCoercion
+ */
+ public static function stringToSplFixedArray($str = '')
+ {
+ $values = unpack('C*', $str);
+ return SplFixedArray::fromArray(array_values($values));
+ }
+
+ /**
+ * Convert an SplFixedArray of integers into a string
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $a
+ * @return string
+ * @throws TypeError
+ */
+ public static function SplFixedArrayToString(SplFixedArray $a)
+ {
+ /**
+ * @var array<int, int|string> $arr
+ */
+ $arr = $a->toArray();
+ $c = $a->count();
+ array_unshift($arr, str_repeat('C', $c));
+ return (string) (call_user_func_array('pack', $arr));
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @return string
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ * @psalm-suppress MixedMethodCall
+ */
+ public static function contextToString(SplFixedArray $ctx)
+ {
+ $str = '';
+ /** @var array<int, array<int, int>> $ctxA */
+ $ctxA = $ctx[0]->toArray();
+
+ # uint64_t h[8];
+ for ($i = 0; $i < 8; ++$i) {
+ $str .= self::store32_le($ctxA[$i][1]);
+ $str .= self::store32_le($ctxA[$i][0]);
+ }
+
+ # uint64_t t[2];
+ # uint64_t f[2];
+ for ($i = 1; $i < 3; ++$i) {
+ $ctxA = $ctx[$i]->toArray();
+ $str .= self::store32_le($ctxA[0][1]);
+ $str .= self::store32_le($ctxA[0][0]);
+ $str .= self::store32_le($ctxA[1][1]);
+ $str .= self::store32_le($ctxA[1][0]);
+ }
+
+ # uint8_t buf[2 * 128];
+ $str .= self::SplFixedArrayToString($ctx[3]);
+
+ /** @var int $ctx4 */
+ $ctx4 = (int) $ctx[4];
+
+ # size_t buflen;
+ $str .= implode('', array(
+ self::intToChr($ctx4 & 0xff),
+ self::intToChr(($ctx4 >> 8) & 0xff),
+ self::intToChr(($ctx4 >> 16) & 0xff),
+ self::intToChr(($ctx4 >> 24) & 0xff),
+ self::intToChr(($ctx4 >> 32) & 0xff),
+ self::intToChr(($ctx4 >> 40) & 0xff),
+ self::intToChr(($ctx4 >> 48) & 0xff),
+ self::intToChr(($ctx4 >> 56) & 0xff)
+ ));
+ # uint8_t last_node;
+ return $str . self::intToChr($ctx[5]) . str_repeat("\x00", 23);
+ }
+
+ /**
+ * Creates an SplFixedArray containing other SplFixedArray elements, from
+ * a string (compatible with \Sodium\crypto_generichash_{init, update, final})
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $string
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArrayAssignment
+ */
+ public static function stringToContext($string)
+ {
+ $ctx = self::context();
+
+ # uint64_t h[8];
+ for ($i = 0; $i < 8; ++$i) {
+ $ctx[0][$i] = SplFixedArray::fromArray(
+ array(
+ self::load_4(
+ self::substr($string, (($i << 3) + 4), 4)
+ ),
+ self::load_4(
+ self::substr($string, (($i << 3) + 0), 4)
+ )
+ )
+ );
+ }
+
+ # uint64_t t[2];
+ # uint64_t f[2];
+ for ($i = 1; $i < 3; ++$i) {
+ $ctx[$i][1] = SplFixedArray::fromArray(
+ array(
+ self::load_4(self::substr($string, 76 + (($i - 1) << 4), 4)),
+ self::load_4(self::substr($string, 72 + (($i - 1) << 4), 4))
+ )
+ );
+ $ctx[$i][0] = SplFixedArray::fromArray(
+ array(
+ self::load_4(self::substr($string, 68 + (($i - 1) << 4), 4)),
+ self::load_4(self::substr($string, 64 + (($i - 1) << 4), 4))
+ )
+ );
+ }
+
+ # uint8_t buf[2 * 128];
+ $ctx[3] = self::stringToSplFixedArray(self::substr($string, 96, 256));
+
+ # uint8_t buf[2 * 128];
+ $int = 0;
+ for ($i = 0; $i < 8; ++$i) {
+ $int |= self::chrToInt($string[352 + $i]) << ($i << 3);
+ }
+ $ctx[4] = $int;
+
+ return $ctx;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php b/vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php
index 47a42b7..01e4c46 100644
--- a/vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php
+++ b/vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php
@@ -69,6 +69,7 @@ class ParagonIE_Sodium_Core_ChaCha20_Ctx extends ParagonIE_Sodium_Core_Util impl
* @return void
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
if (!is_int($offset)) {
@@ -86,6 +87,7 @@ class ParagonIE_Sodium_Core_ChaCha20_Ctx extends ParagonIE_Sodium_Core_Util impl
* @param int $offset
* @return bool
*/
+ #[ReturnTypeWillChange]
public function offsetExists($offset)
{
return isset($this->container[$offset]);
@@ -98,6 +100,7 @@ class ParagonIE_Sodium_Core_ChaCha20_Ctx extends ParagonIE_Sodium_Core_Util impl
* @return void
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetUnset($offset)
{
unset($this->container[$offset]);
@@ -110,6 +113,7 @@ class ParagonIE_Sodium_Core_ChaCha20_Ctx extends ParagonIE_Sodium_Core_Util impl
* @return mixed|null
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetGet($offset)
{
return isset($this->container[$offset])
diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519.php
index f0b9c5f..dfcf26a 100644
--- a/vendor/paragonie/sodium_compat/src/Core/Curve25519.php
+++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519.php
@@ -1,4106 +1,3836 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core_Curve25519', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_Sodium_Core_Curve25519
- *
- * Implements Curve25519 core functions
- *
- * Based on the ref10 curve25519 code provided by libsodium
- *
- * @ref https://github.com/jedisct1/libsodium/blob/master/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c
- */
-abstract class ParagonIE_Sodium_Core_Curve25519 extends ParagonIE_Sodium_Core_Curve25519_H
-{
- /**
- * Get a field element of size 10 with a value of 0
- *
- * @internal You should not use this directly from another application
- *
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_0()
- {
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
- array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
- );
- }
-
- /**
- * Get a field element of size 10 with a value of 1
- *
- * @internal You should not use this directly from another application
- *
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_1()
- {
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
- array(1, 0, 0, 0, 0, 0, 0, 0, 0, 0)
- );
- }
-
- /**
- * Add two field elements.
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedOperand
- */
- public static function fe_add(
- ParagonIE_Sodium_Core_Curve25519_Fe $f,
- ParagonIE_Sodium_Core_Curve25519_Fe $g
- ) {
- /** @var array<int, int> $arr */
- $arr = array();
- for ($i = 0; $i < 10; ++$i) {
- $arr[$i] = (int) ($f[$i] + $g[$i]);
- }
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($arr);
- }
-
- /**
- * Constant-time conditional move.
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
- * @param int $b
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- * @psalm-suppress MixedAssignment
- */
- public static function fe_cmov(
- ParagonIE_Sodium_Core_Curve25519_Fe $f,
- ParagonIE_Sodium_Core_Curve25519_Fe $g,
- $b = 0
- ) {
- /** @var array<int, int> $h */
- $h = array();
- $b *= -1;
- for ($i = 0; $i < 10; ++$i) {
- $x = (($f[$i] ^ $g[$i]) & $b);
- $h[$i] = ($f[$i]) ^ $x;
- }
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($h);
- }
-
- /**
- * Create a copy of a field element.
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_copy(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- $h = clone $f;
- return $h;
- }
-
- /**
- * Give: 32-byte string.
- * Receive: A field element object to use for internal calculations.
- *
- * @internal You should not use this directly from another application
- *
- * @param string $s
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- * @throws RangeException
- * @throws TypeError
- */
- public static function fe_frombytes($s)
- {
- if (self::strlen($s) !== 32) {
- throw new RangeException('Expected a 32-byte string.');
- }
- /** @var int $h0 */
- $h0 = self::load_4($s);
- /** @var int $h1 */
- $h1 = self::load_3(self::substr($s, 4, 3)) << 6;
- /** @var int $h2 */
- $h2 = self::load_3(self::substr($s, 7, 3)) << 5;
- /** @var int $h3 */
- $h3 = self::load_3(self::substr($s, 10, 3)) << 3;
- /** @var int $h4 */
- $h4 = self::load_3(self::substr($s, 13, 3)) << 2;
- /** @var int $h5 */
- $h5 = self::load_4(self::substr($s, 16, 4));
- /** @var int $h6 */
- $h6 = self::load_3(self::substr($s, 20, 3)) << 7;
- /** @var int $h7 */
- $h7 = self::load_3(self::substr($s, 23, 3)) << 5;
- /** @var int $h8 */
- $h8 = self::load_3(self::substr($s, 26, 3)) << 4;
- /** @var int $h9 */
- $h9 = (self::load_3(self::substr($s, 29, 3)) & 8388607) << 2;
-
- /** @var int $carry9 */
- $carry9 = ($h9 + (1 << 24)) >> 25;
- $h0 += self::mul($carry9, 19, 5);
- $h9 -= $carry9 << 25;
- /** @var int $carry1 */
- $carry1 = ($h1 + (1 << 24)) >> 25;
- $h2 += $carry1;
- $h1 -= $carry1 << 25;
- /** @var int $carry3 */
- $carry3 = ($h3 + (1 << 24)) >> 25;
- $h4 += $carry3;
- $h3 -= $carry3 << 25;
- /** @var int $carry5 */
- $carry5 = ($h5 + (1 << 24)) >> 25;
- $h6 += $carry5;
- $h5 -= $carry5 << 25;
- /** @var int $carry7 */
- $carry7 = ($h7 + (1 << 24)) >> 25;
- $h8 += $carry7;
- $h7 -= $carry7 << 25;
-
- /** @var int $carry0 */
- $carry0 = ($h0 + (1 << 25)) >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
- /** @var int $carry2 */
- $carry2 = ($h2 + (1 << 25)) >> 26;
- $h3 += $carry2;
- $h2 -= $carry2 << 26;
- /** @var int $carry4 */
- $carry4 = ($h4 + (1 << 25)) >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
- /** @var int $carry6 */
- $carry6 = ($h6 + (1 << 25)) >> 26;
- $h7 += $carry6;
- $h6 -= $carry6 << 26;
- /** @var int $carry8 */
- $carry8 = ($h8 + (1 << 25)) >> 26;
- $h9 += $carry8;
- $h8 -= $carry8 << 26;
-
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
- array(
- (int) $h0,
- (int) $h1,
- (int) $h2,
- (int) $h3,
- (int) $h4,
- (int) $h5,
- (int) $h6,
- (int) $h7,
- (int) $h8,
- (int) $h9
- )
- );
- }
-
- /**
- * Convert a field element to a byte string.
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $h
- * @return string
- */
- public static function fe_tobytes(ParagonIE_Sodium_Core_Curve25519_Fe $h)
- {
- /** @var int $h0 */
- $h0 = (int) $h[0];
- /** @var int $h1 */
- $h1 = (int) $h[1];
- /** @var int $h2 */
- $h2 = (int) $h[2];
- /** @var int $h3 */
- $h3 = (int) $h[3];
- /** @var int $h4 */
- $h4 = (int) $h[4];
- /** @var int $h5 */
- $h5 = (int) $h[5];
- /** @var int $h6 */
- $h6 = (int) $h[6];
- /** @var int $h7 */
- $h7 = (int) $h[7];
- /** @var int $h8 */
- $h8 = (int) $h[8];
- /** @var int $h9 */
- $h9 = (int) $h[9];
-
- /** @var int $q */
- $q = (self::mul($h9, 19, 5) + (1 << 24)) >> 25;
- /** @var int $q */
- $q = ($h0 + $q) >> 26;
- /** @var int $q */
- $q = ($h1 + $q) >> 25;
- /** @var int $q */
- $q = ($h2 + $q) >> 26;
- /** @var int $q */
- $q = ($h3 + $q) >> 25;
- /** @var int $q */
- $q = ($h4 + $q) >> 26;
- /** @var int $q */
- $q = ($h5 + $q) >> 25;
- /** @var int $q */
- $q = ($h6 + $q) >> 26;
- /** @var int $q */
- $q = ($h7 + $q) >> 25;
- /** @var int $q */
- $q = ($h8 + $q) >> 26;
- /** @var int $q */
- $q = ($h9 + $q) >> 25;
-
- $h0 += self::mul($q, 19, 5);
-
- /** @var int $carry0 */
- $carry0 = $h0 >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
- /** @var int $carry1 */
- $carry1 = $h1 >> 25;
- $h2 += $carry1;
- $h1 -= $carry1 << 25;
- /** @var int $carry2 */
- $carry2 = $h2 >> 26;
- $h3 += $carry2;
- $h2 -= $carry2 << 26;
- /** @var int $carry3 */
- $carry3 = $h3 >> 25;
- $h4 += $carry3;
- $h3 -= $carry3 << 25;
- /** @var int $carry4 */
- $carry4 = $h4 >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
- /** @var int $carry5 */
- $carry5 = $h5 >> 25;
- $h6 += $carry5;
- $h5 -= $carry5 << 25;
- /** @var int $carry6 */
- $carry6 = $h6 >> 26;
- $h7 += $carry6;
- $h6 -= $carry6 << 26;
- /** @var int $carry7 */
- $carry7 = $h7 >> 25;
- $h8 += $carry7;
- $h7 -= $carry7 << 25;
- /** @var int $carry8 */
- $carry8 = $h8 >> 26;
- $h9 += $carry8;
- $h8 -= $carry8 << 26;
- /** @var int $carry9 */
- $carry9 = $h9 >> 25;
- $h9 -= $carry9 << 25;
-
- /**
- * @var array<int, int>
- */
- $s = array(
- (int) (($h0 >> 0) & 0xff),
- (int) (($h0 >> 8) & 0xff),
- (int) (($h0 >> 16) & 0xff),
- (int) ((($h0 >> 24) | ($h1 << 2)) & 0xff),
- (int) (($h1 >> 6) & 0xff),
- (int) (($h1 >> 14) & 0xff),
- (int) ((($h1 >> 22) | ($h2 << 3)) & 0xff),
- (int) (($h2 >> 5) & 0xff),
- (int) (($h2 >> 13) & 0xff),
- (int) ((($h2 >> 21) | ($h3 << 5)) & 0xff),
- (int) (($h3 >> 3) & 0xff),
- (int) (($h3 >> 11) & 0xff),
- (int) ((($h3 >> 19) | ($h4 << 6)) & 0xff),
- (int) (($h4 >> 2) & 0xff),
- (int) (($h4 >> 10) & 0xff),
- (int) (($h4 >> 18) & 0xff),
- (int) (($h5 >> 0) & 0xff),
- (int) (($h5 >> 8) & 0xff),
- (int) (($h5 >> 16) & 0xff),
- (int) ((($h5 >> 24) | ($h6 << 1)) & 0xff),
- (int) (($h6 >> 7) & 0xff),
- (int) (($h6 >> 15) & 0xff),
- (int) ((($h6 >> 23) | ($h7 << 3)) & 0xff),
- (int) (($h7 >> 5) & 0xff),
- (int) (($h7 >> 13) & 0xff),
- (int) ((($h7 >> 21) | ($h8 << 4)) & 0xff),
- (int) (($h8 >> 4) & 0xff),
- (int) (($h8 >> 12) & 0xff),
- (int) ((($h8 >> 20) | ($h9 << 6)) & 0xff),
- (int) (($h9 >> 2) & 0xff),
- (int) (($h9 >> 10) & 0xff),
- (int) (($h9 >> 18) & 0xff)
- );
- return self::intArrayToString($s);
- }
-
- /**
- * Is a field element negative? (1 = yes, 0 = no. Used in calculations.)
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- public static function fe_isnegative(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- $str = self::fe_tobytes($f);
- return (int) (self::chrToInt($str[0]) & 1);
- }
-
- /**
- * Returns 0 if this field element results in all NUL bytes.
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function fe_isnonzero(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- static $zero;
- if ($zero === null) {
- $zero = str_repeat("\x00", 32);
- }
- /** @var string $zero */
- /** @var string $str */
- $str = self::fe_tobytes($f);
- return !self::verify_32($str, (string) $zero);
- }
-
- /**
- * Multiply two field elements
- *
- * h = f * g
- *
- * @internal You should not use this directly from another application
- *
- * @security Is multiplication a source of timing leaks? If so, can we do
- * anything to prevent that from happening?
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_mul(
- ParagonIE_Sodium_Core_Curve25519_Fe $f,
- ParagonIE_Sodium_Core_Curve25519_Fe $g
- ) {
- /** @var int $f0 */
- $f0 = $f[0];
- /** @var int $f1 */
- $f1 = $f[1];
- /** @var int $f2 */
- $f2 = $f[2];
- /** @var int $f3 */
- $f3 = $f[3];
- /** @var int $f4 */
- $f4 = $f[4];
- /** @var int $f5 */
- $f5 = $f[5];
- /** @var int $f6 */
- $f6 = $f[6];
- /** @var int $f7 */
- $f7 = $f[7];
- /** @var int $f8 */
- $f8 = $f[8];
- /** @var int $f9 */
- $f9 = $f[9];
- /** @var int $g0 */
- $g0 = $g[0];
- /** @var int $g1 */
- $g1 = $g[1];
- /** @var int $g2 */
- $g2 = $g[2];
- /** @var int $g3 */
- $g3 = $g[3];
- /** @var int $g4 */
- $g4 = $g[4];
- /** @var int $g5 */
- $g5 = $g[5];
- /** @var int $g6 */
- $g6 = $g[6];
- /** @var int $g7 */
- $g7 = $g[7];
- /** @var int $g8 */
- $g8 = $g[8];
- /** @var int $g9 */
- $g9 = $g[9];
- $g1_19 = self::mul($g1, 19, 5);
- $g2_19 = self::mul($g2, 19, 5);
- $g3_19 = self::mul($g3, 19, 5);
- $g4_19 = self::mul($g4, 19, 5);
- $g5_19 = self::mul($g5, 19, 5);
- $g6_19 = self::mul($g6, 19, 5);
- $g7_19 = self::mul($g7, 19, 5);
- $g8_19 = self::mul($g8, 19, 5);
- $g9_19 = self::mul($g9, 19, 5);
- /** @var int $f1_2 */
- $f1_2 = $f1 << 1;
- /** @var int $f3_2 */
- $f3_2 = $f3 << 1;
- /** @var int $f5_2 */
- $f5_2 = $f5 << 1;
- /** @var int $f7_2 */
- $f7_2 = $f7 << 1;
- /** @var int $f9_2 */
- $f9_2 = $f9 << 1;
- $f0g0 = self::mul($f0, $g0, 26);
- $f0g1 = self::mul($f0, $g1, 25);
- $f0g2 = self::mul($f0, $g2, 26);
- $f0g3 = self::mul($f0, $g3, 25);
- $f0g4 = self::mul($f0, $g4, 26);
- $f0g5 = self::mul($f0, $g5, 25);
- $f0g6 = self::mul($f0, $g6, 26);
- $f0g7 = self::mul($f0, $g7, 25);
- $f0g8 = self::mul($f0, $g8, 26);
- $f0g9 = self::mul($f0, $g9, 26);
- $f1g0 = self::mul($f1, $g0, 26);
- $f1g1_2 = self::mul($f1_2, $g1, 25);
- $f1g2 = self::mul($f1, $g2, 26);
- $f1g3_2 = self::mul($f1_2, $g3, 25);
- $f1g4 = self::mul($f1, $g4, 26);
- $f1g5_2 = self::mul($f1_2, $g5, 25);
- $f1g6 = self::mul($f1, $g6, 26);
- $f1g7_2 = self::mul($f1_2, $g7, 25);
- $f1g8 = self::mul($f1, $g8, 26);
- $f1g9_38 = self::mul($g9_19, $f1_2, 26);
- $f2g0 = self::mul($f2, $g0, 26);
- $f2g1 = self::mul($f2, $g1, 25);
- $f2g2 = self::mul($f2, $g2, 26);
- $f2g3 = self::mul($f2, $g3, 25);
- $f2g4 = self::mul($f2, $g4, 26);
- $f2g5 = self::mul($f2, $g5, 25);
- $f2g6 = self::mul($f2, $g6, 26);
- $f2g7 = self::mul($f2, $g7, 25);
- $f2g8_19 = self::mul($g8_19, $f2, 26);
- $f2g9_19 = self::mul($g9_19, $f2, 26);
- $f3g0 = self::mul($f3, $g0, 26);
- $f3g1_2 = self::mul($f3_2, $g1, 25);
- $f3g2 = self::mul($f3, $g2, 26);
- $f3g3_2 = self::mul($f3_2, $g3, 25);
- $f3g4 = self::mul($f3, $g4, 26);
- $f3g5_2 = self::mul($f3_2, $g5, 25);
- $f3g6 = self::mul($f3, $g6, 26);
- $f3g7_38 = self::mul($g7_19, $f3_2, 26);
- $f3g8_19 = self::mul($g8_19, $f3, 25);
- $f3g9_38 = self::mul($g9_19, $f3_2, 26);
- $f4g0 = self::mul($f4, $g0, 26);
- $f4g1 = self::mul($f4, $g1, 25);
- $f4g2 = self::mul($f4, $g2, 26);
- $f4g3 = self::mul($f4, $g3, 25);
- $f4g4 = self::mul($f4, $g4, 26);
- $f4g5 = self::mul($f4, $g5, 25);
- $f4g6_19 = self::mul($g6_19, $f4, 26);
- $f4g7_19 = self::mul($g7_19, $f4, 26);
- $f4g8_19 = self::mul($g8_19, $f4, 26);
- $f4g9_19 = self::mul($g9_19, $f4, 26);
- $f5g0 = self::mul($f5, $g0, 26);
- $f5g1_2 = self::mul($f5_2, $g1, 25);
- $f5g2 = self::mul($f5, $g2, 26);
- $f5g3_2 = self::mul($f5_2, $g3, 25);
- $f5g4 = self::mul($f5, $g4, 26);
- $f5g5_38 = self::mul($g5_19, $f5_2, 26);
- $f5g6_19 = self::mul($g6_19, $f5, 25);
- $f5g7_38 = self::mul($g7_19, $f5_2, 26);
- $f5g8_19 = self::mul($g8_19, $f5, 25);
- $f5g9_38 = self::mul($g9_19, $f5_2, 26);
- $f6g0 = self::mul($f6, $g0, 26);
- $f6g1 = self::mul($f6, $g1, 25);
- $f6g2 = self::mul($f6, $g2, 26);
- $f6g3 = self::mul($f6, $g3, 25);
- $f6g4_19 = self::mul($g4_19, $f6, 26);
- $f6g5_19 = self::mul($g5_19, $f6, 26);
- $f6g6_19 = self::mul($g6_19, $f6, 26);
- $f6g7_19 = self::mul($g7_19, $f6, 26);
- $f6g8_19 = self::mul($g8_19, $f6, 26);
- $f6g9_19 = self::mul($g9_19, $f6, 26);
- $f7g0 = self::mul($f7, $g0, 26);
- $f7g1_2 = self::mul($f7_2, $g1, 25);
- $f7g2 = self::mul($f7, $g2, 26);
- $f7g3_38 = self::mul($g3_19, $f7_2, 26);
- $f7g4_19 = self::mul($g4_19, $f7, 26);
- $f7g5_38 = self::mul($g5_19, $f7_2, 26);
- $f7g6_19 = self::mul($g6_19, $f7, 25);
- $f7g7_38 = self::mul($g7_19, $f7_2, 26);
- $f7g8_19 = self::mul($g8_19, $f7, 25);
- $f7g9_38 = self::mul($g9_19,$f7_2, 26);
- $f8g0 = self::mul($f8, $g0, 26);
- $f8g1 = self::mul($f8, $g1, 25);
- $f8g2_19 = self::mul($g2_19, $f8, 26);
- $f8g3_19 = self::mul($g3_19, $f8, 26);
- $f8g4_19 = self::mul($g4_19, $f8, 26);
- $f8g5_19 = self::mul($g5_19, $f8, 26);
- $f8g6_19 = self::mul($g6_19, $f8, 26);
- $f8g7_19 = self::mul($g7_19, $f8, 26);
- $f8g8_19 = self::mul($g8_19, $f8, 26);
- $f8g9_19 = self::mul($g9_19, $f8, 26);
- $f9g0 = self::mul($f9, $g0, 26);
- $f9g1_38 = self::mul($g1_19, $f9_2, 26);
- $f9g2_19 = self::mul($g2_19, $f9, 25);
- $f9g3_38 = self::mul($g3_19, $f9_2, 26);
- $f9g4_19 = self::mul($g4_19, $f9, 25);
- $f9g5_38 = self::mul($g5_19, $f9_2, 26);
- $f9g6_19 = self::mul($g6_19, $f9, 25);
- $f9g7_38 = self::mul($g7_19, $f9_2, 26);
- $f9g8_19 = self::mul($g8_19, $f9, 25);
- $f9g9_38 = self::mul($g9_19, $f9_2, 26);
- $h0 = $f0g0 + $f1g9_38 + $f2g8_19 + $f3g7_38 + $f4g6_19 + $f5g5_38 + $f6g4_19 + $f7g3_38 + $f8g2_19 + $f9g1_38;
- $h1 = $f0g1 + $f1g0 + $f2g9_19 + $f3g8_19 + $f4g7_19 + $f5g6_19 + $f6g5_19 + $f7g4_19 + $f8g3_19 + $f9g2_19;
- $h2 = $f0g2 + $f1g1_2 + $f2g0 + $f3g9_38 + $f4g8_19 + $f5g7_38 + $f6g6_19 + $f7g5_38 + $f8g4_19 + $f9g3_38;
- $h3 = $f0g3 + $f1g2 + $f2g1 + $f3g0 + $f4g9_19 + $f5g8_19 + $f6g7_19 + $f7g6_19 + $f8g5_19 + $f9g4_19;
- $h4 = $f0g4 + $f1g3_2 + $f2g2 + $f3g1_2 + $f4g0 + $f5g9_38 + $f6g8_19 + $f7g7_38 + $f8g6_19 + $f9g5_38;
- $h5 = $f0g5 + $f1g4 + $f2g3 + $f3g2 + $f4g1 + $f5g0 + $f6g9_19 + $f7g8_19 + $f8g7_19 + $f9g6_19;
- $h6 = $f0g6 + $f1g5_2 + $f2g4 + $f3g3_2 + $f4g2 + $f5g1_2 + $f6g0 + $f7g9_38 + $f8g8_19 + $f9g7_38;
- $h7 = $f0g7 + $f1g6 + $f2g5 + $f3g4 + $f4g3 + $f5g2 + $f6g1 + $f7g0 + $f8g9_19 + $f9g8_19;
- $h8 = $f0g8 + $f1g7_2 + $f2g6 + $f3g5_2 + $f4g4 + $f5g3_2 + $f6g2 + $f7g1_2 + $f8g0 + $f9g9_38;
- $h9 = $f0g9 + $f1g8 + $f2g7 + $f3g6 + $f4g5 + $f5g4 + $f6g3 + $f7g2 + $f8g1 + $f9g0 ;
-
- /** @var int $carry0 */
- $carry0 = ($h0 + (1 << 25)) >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
- /** @var int $carry4 */
- $carry4 = ($h4 + (1 << 25)) >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
-
- /** @var int $carry1 */
- $carry1 = ($h1 + (1 << 24)) >> 25;
- $h2 += $carry1;
- $h1 -= $carry1 << 25;
- /** @var int $carry5 */
- $carry5 = ($h5 + (1 << 24)) >> 25;
- $h6 += $carry5;
- $h5 -= $carry5 << 25;
-
- /** @var int $carry2 */
- $carry2 = ($h2 + (1 << 25)) >> 26;
- $h3 += $carry2;
- $h2 -= $carry2 << 26;
- /** @var int $carry6 */
- $carry6 = ($h6 + (1 << 25)) >> 26;
- $h7 += $carry6;
- $h6 -= $carry6 << 26;
-
- /** @var int $carry3 */
- $carry3 = ($h3 + (1 << 24)) >> 25;
- $h4 += $carry3;
- $h3 -= $carry3 << 25;
- /** @var int $carry7 */
- $carry7 = ($h7 + (1 << 24)) >> 25;
- $h8 += $carry7;
- $h7 -= $carry7 << 25;
-
- /** @var int $carry4 */
- $carry4 = ($h4 + (1 << 25)) >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
- /** @var int $carry8 */
- $carry8 = ($h8 + (1 << 25)) >> 26;
- $h9 += $carry8;
- $h8 -= $carry8 << 26;
-
- /** @var int $carry9 */
- $carry9 = ($h9 + (1 << 24)) >> 25;
- $h0 += self::mul($carry9, 19, 5);
- $h9 -= $carry9 << 25;
-
- /** @var int $carry0 */
- $carry0 = ($h0 + (1 << 25)) >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
-
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
- array(
- (int) $h0,
- (int) $h1,
- (int) $h2,
- (int) $h3,
- (int) $h4,
- (int) $h5,
- (int) $h6,
- (int) $h7,
- (int) $h8,
- (int) $h9
- )
- );
- }
-
- /**
- * Get the negative values for each piece of the field element.
- *
- * h = -f
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- * @psalm-suppress MixedAssignment
- */
- public static function fe_neg(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- $h = new ParagonIE_Sodium_Core_Curve25519_Fe();
- for ($i = 0; $i < 10; ++$i) {
- $h[$i] = -$f[$i];
- }
- return $h;
- }
-
- /**
- * Square a field element
- *
- * h = f * f
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_sq(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- $f0 = (int) $f[0];
- $f1 = (int) $f[1];
- $f2 = (int) $f[2];
- $f3 = (int) $f[3];
- $f4 = (int) $f[4];
- $f5 = (int) $f[5];
- $f6 = (int) $f[6];
- $f7 = (int) $f[7];
- $f8 = (int) $f[8];
- $f9 = (int) $f[9];
-
- /** @var int $f0_2 */
- $f0_2 = $f0 << 1;
- /** @var int $f1_2 */
- $f1_2 = $f1 << 1;
- /** @var int $f2_2 */
- $f2_2 = $f2 << 1;
- /** @var int $f3_2 */
- $f3_2 = $f3 << 1;
- /** @var int $f4_2 */
- $f4_2 = $f4 << 1;
- /** @var int $f5_2 */
- $f5_2 = $f5 << 1;
- /** @var int $f6_2 */
- $f6_2 = $f6 << 1;
- /** @var int $f7_2 */
- $f7_2 = $f7 << 1;
- $f5_38 = self::mul($f5, 38, 6);
- $f6_19 = self::mul($f6, 19, 5);
- $f7_38 = self::mul($f7, 38, 6);
- $f8_19 = self::mul($f8, 19, 5);
- $f9_38 = self::mul($f9, 38, 6);
- $f0f0 = self::mul($f0, $f0, 25);
- $f0f1_2 = self::mul($f0_2, $f1, 24);
- $f0f2_2 = self::mul($f0_2, $f2, 26);
- $f0f3_2 = self::mul($f0_2, $f3, 24);
- $f0f4_2 = self::mul($f0_2, $f4, 25);
- $f0f5_2 = self::mul($f0_2, $f5, 25);
- $f0f6_2 = self::mul($f0_2, $f6, 25);
- $f0f7_2 = self::mul($f0_2, $f7, 24);
- $f0f8_2 = self::mul($f0_2, $f8, 25);
- $f0f9_2 = self::mul($f0_2, $f9, 25);
- $f1f1_2 = self::mul($f1_2, $f1, 24);
- $f1f2_2 = self::mul($f1_2, $f2, 26);
- $f1f3_4 = self::mul($f1_2, $f3_2, 25);
- $f1f4_2 = self::mul($f1_2, $f4, 25);
- $f1f5_4 = self::mul($f1_2, $f5_2, 26);
- $f1f6_2 = self::mul($f1_2, $f6, 25);
- $f1f7_4 = self::mul($f1_2, $f7_2, 25);
- $f1f8_2 = self::mul($f1_2, $f8, 25);
- $f1f9_76 = self::mul($f9_38, $f1_2, 25);
- $f2f2 = self::mul($f2, $f2, 26);
- $f2f3_2 = self::mul($f2_2, $f3, 24);
- $f2f4_2 = self::mul($f2_2, $f4, 25);
- $f2f5_2 = self::mul($f2_2, $f5, 25);
- $f2f6_2 = self::mul($f2_2, $f6, 25);
- $f2f7_2 = self::mul($f2_2, $f7, 25);
- $f2f8_38 = self::mul($f8_19, $f2_2, 27);
- $f2f9_38 = self::mul($f9_38, $f2, 26);
- $f3f3_2 = self::mul($f3_2, $f3, 25);
- $f3f4_2 = self::mul($f3_2, $f4, 25);
- $f3f5_4 = self::mul($f3_2, $f5_2, 26);
- $f3f6_2 = self::mul($f3_2, $f6, 25);
- $f3f7_76 = self::mul($f7_38, $f3_2, 25);
- $f3f8_38 = self::mul($f8_19, $f3_2, 25);
- $f3f9_76 = self::mul($f9_38, $f3_2, 25);
- $f4f4 = self::mul($f4, $f4, 25);
- $f4f5_2 = self::mul($f4_2, $f5, 25);
- $f4f6_38 = self::mul($f6_19, $f4_2, 26);
- $f4f7_38 = self::mul($f7_38, $f4, 25);
- $f4f8_38 = self::mul($f8_19, $f4_2, 26);
- $f4f9_38 = self::mul($f9_38, $f4, 25);
- $f5f5_38 = self::mul($f5_38, $f5, 25);
- $f5f6_38 = self::mul($f6_19, $f5_2, 26);
- $f5f7_76 = self::mul($f7_38, $f5_2, 26);
- $f5f8_38 = self::mul($f8_19, $f5_2, 26);
- $f5f9_76 = self::mul($f9_38, $f5_2, 26);
- $f6f6_19 = self::mul($f6_19, $f6, 25);
- $f6f7_38 = self::mul($f7_38, $f6, 25);
- $f6f8_38 = self::mul($f8_19, $f6_2, 26);
- $f6f9_38 = self::mul($f9_38, $f6, 25);
- $f7f7_38 = self::mul($f7_38, $f7, 24);
- $f7f8_38 = self::mul($f8_19, $f7_2, 25);
- $f7f9_76 = self::mul($f9_38, $f7_2, 25);
- $f8f8_19 = self::mul($f8_19, $f8, 25);
- $f8f9_38 = self::mul($f9_38, $f8, 25);
- $f9f9_38 = self::mul($f9_38, $f9, 25);
- $h0 = $f0f0 + $f1f9_76 + $f2f8_38 + $f3f7_76 + $f4f6_38 + $f5f5_38;
- $h1 = $f0f1_2 + $f2f9_38 + $f3f8_38 + $f4f7_38 + $f5f6_38;
- $h2 = $f0f2_2 + $f1f1_2 + $f3f9_76 + $f4f8_38 + $f5f7_76 + $f6f6_19;
- $h3 = $f0f3_2 + $f1f2_2 + $f4f9_38 + $f5f8_38 + $f6f7_38;
- $h4 = $f0f4_2 + $f1f3_4 + $f2f2 + $f5f9_76 + $f6f8_38 + $f7f7_38;
- $h5 = $f0f5_2 + $f1f4_2 + $f2f3_2 + $f6f9_38 + $f7f8_38;
- $h6 = $f0f6_2 + $f1f5_4 + $f2f4_2 + $f3f3_2 + $f7f9_76 + $f8f8_19;
- $h7 = $f0f7_2 + $f1f6_2 + $f2f5_2 + $f3f4_2 + $f8f9_38;
- $h8 = $f0f8_2 + $f1f7_4 + $f2f6_2 + $f3f5_4 + $f4f4 + $f9f9_38;
- $h9 = $f0f9_2 + $f1f8_2 + $f2f7_2 + $f3f6_2 + $f4f5_2;
-
- /** @var int $carry0 */
- $carry0 = ($h0 + (1 << 25)) >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
- /** @var int $carry4 */
- $carry4 = ($h4 + (1 << 25)) >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
-
- /** @var int $carry1 */
- $carry1 = ($h1 + (1 << 24)) >> 25;
- $h2 += $carry1;
- $h1 -= $carry1 << 25;
- /** @var int $carry5 */
- $carry5 = ($h5 + (1 << 24)) >> 25;
- $h6 += $carry5;
- $h5 -= $carry5 << 25;
-
- /** @var int $carry2 */
- $carry2 = ($h2 + (1 << 25)) >> 26;
- $h3 += $carry2;
- $h2 -= $carry2 << 26;
- /** @var int $carry6 */
- $carry6 = ($h6 + (1 << 25)) >> 26;
- $h7 += $carry6;
- $h6 -= $carry6 << 26;
-
- /** @var int $carry3 */
- $carry3 = ($h3 + (1 << 24)) >> 25;
- $h4 += $carry3;
- $h3 -= $carry3 << 25;
- /** @var int $carry7 */
- $carry7 = ($h7 + (1 << 24)) >> 25;
- $h8 += $carry7;
- $h7 -= $carry7 << 25;
-
- /** @var int $carry4 */
- $carry4 = ($h4 + (1 << 25)) >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
- /** @var int $carry8 */
- $carry8 = ($h8 + (1 << 25)) >> 26;
- $h9 += $carry8;
- $h8 -= $carry8 << 26;
-
- /** @var int $carry9 */
- $carry9 = ($h9 + (1 << 24)) >> 25;
- $h0 += self::mul($carry9, 19, 5);
- $h9 -= $carry9 << 25;
-
- /** @var int $carry0 */
- $carry0 = ($h0 + (1 << 25)) >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
-
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
- array(
- (int) $h0,
- (int) $h1,
- (int) $h2,
- (int) $h3,
- (int) $h4,
- (int) $h5,
- (int) $h6,
- (int) $h7,
- (int) $h8,
- (int) $h9
- )
- );
- }
-
-
- /**
- * Square and double a field element
- *
- * h = 2 * f * f
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_sq2(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- $f0 = (int) $f[0];
- $f1 = (int) $f[1];
- $f2 = (int) $f[2];
- $f3 = (int) $f[3];
- $f4 = (int) $f[4];
- $f5 = (int) $f[5];
- $f6 = (int) $f[6];
- $f7 = (int) $f[7];
- $f8 = (int) $f[8];
- $f9 = (int) $f[9];
-
- /** @var int $f0_2 */
- $f0_2 = $f0 << 1;
- /** @var int $f1_2 */
- $f1_2 = $f1 << 1;
- /** @var int $f2_2 */
- $f2_2 = $f2 << 1;
- /** @var int $f3_2 */
- $f3_2 = $f3 << 1;
- /** @var int $f4_2 */
- $f4_2 = $f4 << 1;
- /** @var int $f5_2 */
- $f5_2 = $f5 << 1;
- /** @var int $f6_2 */
- $f6_2 = $f6 << 1;
- /** @var int $f7_2 */
- $f7_2 = $f7 << 1;
- $f5_38 = self::mul($f5, 38, 6); /* 1.959375*2^30 */
- $f6_19 = self::mul($f6, 19, 5); /* 1.959375*2^30 */
- $f7_38 = self::mul($f7, 38, 6); /* 1.959375*2^30 */
- $f8_19 = self::mul($f8, 19, 5); /* 1.959375*2^30 */
- $f9_38 = self::mul($f9, 38, 6); /* 1.959375*2^30 */
- $f0f0 = self::mul($f0, $f0, 24);
- $f0f1_2 = self::mul($f0_2, $f1, 24);
- $f0f2_2 = self::mul($f0_2, $f2, 24);
- $f0f3_2 = self::mul($f0_2, $f3, 24);
- $f0f4_2 = self::mul($f0_2, $f4, 24);
- $f0f5_2 = self::mul($f0_2, $f5, 24);
- $f0f6_2 = self::mul($f0_2, $f6, 24);
- $f0f7_2 = self::mul($f0_2, $f7, 24);
- $f0f8_2 = self::mul($f0_2, $f8, 24);
- $f0f9_2 = self::mul($f0_2, $f9, 24);
- $f1f1_2 = self::mul($f1_2, $f1, 24);
- $f1f2_2 = self::mul($f1_2, $f2, 24);
- $f1f3_4 = self::mul($f1_2, $f3_2, 24);
- $f1f4_2 = self::mul($f1_2, $f4, 24);
- $f1f5_4 = self::mul($f1_2, $f5_2, 24);
- $f1f6_2 = self::mul($f1_2, $f6, 24);
- $f1f7_4 = self::mul($f1_2, $f7_2, 24);
- $f1f8_2 = self::mul($f1_2, $f8, 24);
- $f1f9_76 = self::mul($f9_38, $f1_2, 24);
- $f2f2 = self::mul($f2, $f2, 24);
- $f2f3_2 = self::mul($f2_2, $f3, 24);
- $f2f4_2 = self::mul($f2_2, $f4, 24);
- $f2f5_2 = self::mul($f2_2, $f5, 24);
- $f2f6_2 = self::mul($f2_2, $f6, 24);
- $f2f7_2 = self::mul($f2_2, $f7, 24);
- $f2f8_38 = self::mul($f8_19, $f2_2, 25);
- $f2f9_38 = self::mul($f9_38, $f2, 24);
- $f3f3_2 = self::mul($f3_2, $f3, 24);
- $f3f4_2 = self::mul($f3_2, $f4, 24);
- $f3f5_4 = self::mul($f3_2, $f5_2, 24);
- $f3f6_2 = self::mul($f3_2, $f6, 24);
- $f3f7_76 = self::mul($f7_38, $f3_2, 24);
- $f3f8_38 = self::mul($f8_19, $f3_2, 24);
- $f3f9_76 = self::mul($f9_38, $f3_2, 24);
- $f4f4 = self::mul($f4, $f4, 24);
- $f4f5_2 = self::mul($f4_2, $f5, 24);
- $f4f6_38 = self::mul($f6_19, $f4_2, 25);
- $f4f7_38 = self::mul($f7_38, $f4, 24);
- $f4f8_38 = self::mul($f8_19, $f4_2, 25);
- $f4f9_38 = self::mul($f9_38, $f4, 24);
- $f5f5_38 = self::mul($f5_38, $f5, 24);
- $f5f6_38 = self::mul($f6_19, $f5_2, 24);
- $f5f7_76 = self::mul($f7_38, $f5_2, 24);
- $f5f8_38 = self::mul($f8_19, $f5_2, 24);
- $f5f9_76 = self::mul($f9_38, $f5_2, 24);
- $f6f6_19 = self::mul($f6_19, $f6, 24);
- $f6f7_38 = self::mul($f7_38, $f6, 24);
- $f6f8_38 = self::mul($f8_19, $f6_2, 25);
- $f6f9_38 = self::mul($f9_38, $f6, 24);
- $f7f7_38 = self::mul($f7_38, $f7, 24);
- $f7f8_38 = self::mul($f8_19, $f7_2, 24);
- $f7f9_76 = self::mul($f9_38, $f7_2, 24);
- $f8f8_19 = self::mul($f8_19, $f8, 24);
- $f8f9_38 = self::mul($f9_38, $f8, 24);
- $f9f9_38 = self::mul($f9_38, $f9, 24);
-
- /** @var int $h0 */
- $h0 = (int) ($f0f0 + $f1f9_76 + $f2f8_38 + $f3f7_76 + $f4f6_38 + $f5f5_38) << 1;
- /** @var int $h1 */
- $h1 = (int) ($f0f1_2 + $f2f9_38 + $f3f8_38 + $f4f7_38 + $f5f6_38) << 1;
- /** @var int $h2 */
- $h2 = (int) ($f0f2_2 + $f1f1_2 + $f3f9_76 + $f4f8_38 + $f5f7_76 + $f6f6_19) << 1;
- /** @var int $h3 */
- $h3 = (int) ($f0f3_2 + $f1f2_2 + $f4f9_38 + $f5f8_38 + $f6f7_38) << 1;
- /** @var int $h4 */
- $h4 = (int) ($f0f4_2 + $f1f3_4 + $f2f2 + $f5f9_76 + $f6f8_38 + $f7f7_38) << 1;
- /** @var int $h5 */
- $h5 = (int) ($f0f5_2 + $f1f4_2 + $f2f3_2 + $f6f9_38 + $f7f8_38) << 1;
- /** @var int $h6 */
- $h6 = (int) ($f0f6_2 + $f1f5_4 + $f2f4_2 + $f3f3_2 + $f7f9_76 + $f8f8_19) << 1;
- /** @var int $h7 */
- $h7 = (int) ($f0f7_2 + $f1f6_2 + $f2f5_2 + $f3f4_2 + $f8f9_38) << 1;
- /** @var int $h8 */
- $h8 = (int) ($f0f8_2 + $f1f7_4 + $f2f6_2 + $f3f5_4 + $f4f4 + $f9f9_38) << 1;
- /** @var int $h9 */
- $h9 = (int) ($f0f9_2 + $f1f8_2 + $f2f7_2 + $f3f6_2 + $f4f5_2) << 1;
-
- /** @var int $carry0 */
- $carry0 = ($h0 + (1 << 25)) >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
- /** @var int $carry4 */
- $carry4 = ($h4 + (1 << 25)) >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
-
- /** @var int $carry1 */
- $carry1 = ($h1 + (1 << 24)) >> 25;
- $h2 += $carry1;
- $h1 -= $carry1 << 25;
- /** @var int $carry5 */
- $carry5 = ($h5 + (1 << 24)) >> 25;
- $h6 += $carry5;
- $h5 -= $carry5 << 25;
-
- /** @var int $carry2 */
- $carry2 = ($h2 + (1 << 25)) >> 26;
- $h3 += $carry2;
- $h2 -= $carry2 << 26;
- /** @var int $carry6 */
- $carry6 = ($h6 + (1 << 25)) >> 26;
- $h7 += $carry6;
- $h6 -= $carry6 << 26;
-
- /** @var int $carry3 */
- $carry3 = ($h3 + (1 << 24)) >> 25;
- $h4 += $carry3;
- $h3 -= $carry3 << 25;
- /** @var int $carry7 */
- $carry7 = ($h7 + (1 << 24)) >> 25;
- $h8 += $carry7;
- $h7 -= $carry7 << 25;
-
- /** @var int $carry4 */
- $carry4 = ($h4 + (1 << 25)) >> 26;
- $h5 += $carry4;
- $h4 -= $carry4 << 26;
- /** @var int $carry8 */
- $carry8 = ($h8 + (1 << 25)) >> 26;
- $h9 += $carry8;
- $h8 -= $carry8 << 26;
-
- /** @var int $carry9 */
- $carry9 = ($h9 + (1 << 24)) >> 25;
- $h0 += self::mul($carry9, 19, 5);
- $h9 -= $carry9 << 25;
-
- /** @var int $carry0 */
- $carry0 = ($h0 + (1 << 25)) >> 26;
- $h1 += $carry0;
- $h0 -= $carry0 << 26;
-
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
- array(
- (int) $h0,
- (int) $h1,
- (int) $h2,
- (int) $h3,
- (int) $h4,
- (int) $h5,
- (int) $h6,
- (int) $h7,
- (int) $h8,
- (int) $h9
- )
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $Z
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_invert(ParagonIE_Sodium_Core_Curve25519_Fe $Z)
- {
- $z = clone $Z;
- $t0 = self::fe_sq($z);
- $t1 = self::fe_sq($t0);
- $t1 = self::fe_sq($t1);
- $t1 = self::fe_mul($z, $t1);
- $t0 = self::fe_mul($t0, $t1);
- $t2 = self::fe_sq($t0);
- $t1 = self::fe_mul($t1, $t2);
- $t2 = self::fe_sq($t1);
- for ($i = 1; $i < 5; ++$i) {
- $t2 = self::fe_sq($t2);
- }
- $t1 = self::fe_mul($t2, $t1);
- $t2 = self::fe_sq($t1);
- for ($i = 1; $i < 10; ++$i) {
- $t2 = self::fe_sq($t2);
- }
- $t2 = self::fe_mul($t2, $t1);
- $t3 = self::fe_sq($t2);
- for ($i = 1; $i < 20; ++$i) {
- $t3 = self::fe_sq($t3);
- }
- $t2 = self::fe_mul($t3, $t2);
- $t2 = self::fe_sq($t2);
- for ($i = 1; $i < 10; ++$i) {
- $t2 = self::fe_sq($t2);
- }
- $t1 = self::fe_mul($t2, $t1);
- $t2 = self::fe_sq($t1);
- for ($i = 1; $i < 50; ++$i) {
- $t2 = self::fe_sq($t2);
- }
- $t2 = self::fe_mul($t2, $t1);
- $t3 = self::fe_sq($t2);
- for ($i = 1; $i < 100; ++$i) {
- $t3 = self::fe_sq($t3);
- }
- $t2 = self::fe_mul($t3, $t2);
- $t2 = self::fe_sq($t2);
- for ($i = 1; $i < 50; ++$i) {
- $t2 = self::fe_sq($t2);
- }
- $t1 = self::fe_mul($t2, $t1);
- $t1 = self::fe_sq($t1);
- for ($i = 1; $i < 5; ++$i) {
- $t1 = self::fe_sq($t1);
- }
- return self::fe_mul($t1, $t0);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @ref https://github.com/jedisct1/libsodium/blob/68564326e1e9dc57ef03746f85734232d20ca6fb/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c#L1054-L1106
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $z
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_pow22523(ParagonIE_Sodium_Core_Curve25519_Fe $z)
- {
- # fe_sq(t0, z);
- # fe_sq(t1, t0);
- # fe_sq(t1, t1);
- # fe_mul(t1, z, t1);
- # fe_mul(t0, t0, t1);
- # fe_sq(t0, t0);
- # fe_mul(t0, t1, t0);
- # fe_sq(t1, t0);
- $t0 = self::fe_sq($z);
- $t1 = self::fe_sq($t0);
- $t1 = self::fe_sq($t1);
- $t1 = self::fe_mul($z, $t1);
- $t0 = self::fe_mul($t0, $t1);
- $t0 = self::fe_sq($t0);
- $t0 = self::fe_mul($t1, $t0);
- $t1 = self::fe_sq($t0);
-
- # for (i = 1; i < 5; ++i) {
- # fe_sq(t1, t1);
- # }
- for ($i = 1; $i < 5; ++$i) {
- $t1 = self::fe_sq($t1);
- }
-
- # fe_mul(t0, t1, t0);
- # fe_sq(t1, t0);
- $t0 = self::fe_mul($t1, $t0);
- $t1 = self::fe_sq($t0);
-
- # for (i = 1; i < 10; ++i) {
- # fe_sq(t1, t1);
- # }
- for ($i = 1; $i < 10; ++$i) {
- $t1 = self::fe_sq($t1);
- }
-
- # fe_mul(t1, t1, t0);
- # fe_sq(t2, t1);
- $t1 = self::fe_mul($t1, $t0);
- $t2 = self::fe_sq($t1);
-
- # for (i = 1; i < 20; ++i) {
- # fe_sq(t2, t2);
- # }
- for ($i = 1; $i < 20; ++$i) {
- $t2 = self::fe_sq($t2);
- }
-
- # fe_mul(t1, t2, t1);
- # fe_sq(t1, t1);
- $t1 = self::fe_mul($t2, $t1);
- $t1 = self::fe_sq($t1);
-
- # for (i = 1; i < 10; ++i) {
- # fe_sq(t1, t1);
- # }
- for ($i = 1; $i < 10; ++$i) {
- $t1 = self::fe_sq($t1);
- }
-
- # fe_mul(t0, t1, t0);
- # fe_sq(t1, t0);
- $t0 = self::fe_mul($t1, $t0);
- $t1 = self::fe_sq($t0);
-
- # for (i = 1; i < 50; ++i) {
- # fe_sq(t1, t1);
- # }
- for ($i = 1; $i < 50; ++$i) {
- $t1 = self::fe_sq($t1);
- }
-
- # fe_mul(t1, t1, t0);
- # fe_sq(t2, t1);
- $t1 = self::fe_mul($t1, $t0);
- $t2 = self::fe_sq($t1);
-
- # for (i = 1; i < 100; ++i) {
- # fe_sq(t2, t2);
- # }
- for ($i = 1; $i < 100; ++$i) {
- $t2 = self::fe_sq($t2);
- }
-
- # fe_mul(t1, t2, t1);
- # fe_sq(t1, t1);
- $t1 = self::fe_mul($t2, $t1);
- $t1 = self::fe_sq($t1);
-
- # for (i = 1; i < 50; ++i) {
- # fe_sq(t1, t1);
- # }
- for ($i = 1; $i < 50; ++$i) {
- $t1 = self::fe_sq($t1);
- }
-
- # fe_mul(t0, t1, t0);
- # fe_sq(t0, t0);
- # fe_sq(t0, t0);
- # fe_mul(out, t0, z);
- $t0 = self::fe_mul($t1, $t0);
- $t0 = self::fe_sq($t0);
- $t0 = self::fe_sq($t0);
- return self::fe_mul($t0, $z);
- }
-
- /**
- * Subtract two field elements.
- *
- * h = f - g
- *
- * Preconditions:
- * |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
- * |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
- *
- * Postconditions:
- * |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- * @psalm-suppress MixedOperand
- */
- public static function fe_sub(ParagonIE_Sodium_Core_Curve25519_Fe $f, ParagonIE_Sodium_Core_Curve25519_Fe $g)
- {
- return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
- array(
- (int) ($f[0] - $g[0]),
- (int) ($f[1] - $g[1]),
- (int) ($f[2] - $g[2]),
- (int) ($f[3] - $g[3]),
- (int) ($f[4] - $g[4]),
- (int) ($f[5] - $g[5]),
- (int) ($f[6] - $g[6]),
- (int) ($f[7] - $g[7]),
- (int) ($f[8] - $g[8]),
- (int) ($f[9] - $g[9])
- )
- );
- }
-
- /**
- * Add two group elements.
- *
- * r = p + q
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
- */
- public static function ge_add(
- ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
- ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
- ) {
- $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
- $r->X = self::fe_add($p->Y, $p->X);
- $r->Y = self::fe_sub($p->Y, $p->X);
- $r->Z = self::fe_mul($r->X, $q->YplusX);
- $r->Y = self::fe_mul($r->Y, $q->YminusX);
- $r->T = self::fe_mul($q->T2d, $p->T);
- $r->X = self::fe_mul($p->Z, $q->Z);
- $t0 = self::fe_add($r->X, $r->X);
- $r->X = self::fe_sub($r->Z, $r->Y);
- $r->Y = self::fe_add($r->Z, $r->Y);
- $r->Z = self::fe_add($t0, $r->T);
- $r->T = self::fe_sub($t0, $r->T);
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @ref https://github.com/jedisct1/libsodium/blob/157c4a80c13b117608aeae12178b2d38825f9f8f/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c#L1185-L1215
- * @param string $a
- * @return array<int, mixed>
- * @throws SodiumException
- * @throws TypeError
- */
- public static function slide($a)
- {
- if (self::strlen($a) < 256) {
- if (self::strlen($a) < 16) {
- $a = str_pad($a, 256, '0', STR_PAD_RIGHT);
- }
- }
- /** @var array<int, int> $r */
- $r = array();
-
- /** @var int $i */
- for ($i = 0; $i < 256; ++$i) {
- $r[$i] = (int) (
- 1 & (
- self::chrToInt($a[(int) ($i >> 3)])
- >>
- ($i & 7)
- )
- );
- }
-
- for ($i = 0;$i < 256;++$i) {
- if ($r[$i]) {
- for ($b = 1;$b <= 6 && $i + $b < 256;++$b) {
- if ($r[$i + $b]) {
- if ($r[$i] + ($r[$i + $b] << $b) <= 15) {
- $r[$i] += $r[$i + $b] << $b;
- $r[$i + $b] = 0;
- } elseif ($r[$i] - ($r[$i + $b] << $b) >= -15) {
- $r[$i] -= $r[$i + $b] << $b;
- for ($k = $i + $b; $k < 256; ++$k) {
- if (!$r[$k]) {
- $r[$k] = 1;
- break;
- }
- $r[$k] = 0;
- }
- } else {
- break;
- }
- }
- }
- }
- }
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $s
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
- * @throws SodiumException
- * @throws TypeError
- */
- public static function ge_frombytes_negate_vartime($s)
- {
- static $d = null;
- if (!$d) {
- $d = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d);
- }
-
- # fe_frombytes(h->Y,s);
- # fe_1(h->Z);
- $h = new ParagonIE_Sodium_Core_Curve25519_Ge_P3(
- self::fe_0(),
- self::fe_frombytes($s),
- self::fe_1()
- );
-
- # fe_sq(u,h->Y);
- # fe_mul(v,u,d);
- # fe_sub(u,u,h->Z); /* u = y^2-1 */
- # fe_add(v,v,h->Z); /* v = dy^2+1 */
- $u = self::fe_sq($h->Y);
- /** @var ParagonIE_Sodium_Core_Curve25519_Fe $d */
- $v = self::fe_mul($u, $d);
- $u = self::fe_sub($u, $h->Z); /* u = y^2 - 1 */
- $v = self::fe_add($v, $h->Z); /* v = dy^2 + 1 */
-
- # fe_sq(v3,v);
- # fe_mul(v3,v3,v); /* v3 = v^3 */
- # fe_sq(h->X,v3);
- # fe_mul(h->X,h->X,v);
- # fe_mul(h->X,h->X,u); /* x = uv^7 */
- $v3 = self::fe_sq($v);
- $v3 = self::fe_mul($v3, $v); /* v3 = v^3 */
- $h->X = self::fe_sq($v3);
- $h->X = self::fe_mul($h->X, $v);
- $h->X = self::fe_mul($h->X, $u); /* x = uv^7 */
-
- # fe_pow22523(h->X,h->X); /* x = (uv^7)^((q-5)/8) */
- # fe_mul(h->X,h->X,v3);
- # fe_mul(h->X,h->X,u); /* x = uv^3(uv^7)^((q-5)/8) */
- $h->X = self::fe_pow22523($h->X); /* x = (uv^7)^((q-5)/8) */
- $h->X = self::fe_mul($h->X, $v3);
- $h->X = self::fe_mul($h->X, $u); /* x = uv^3(uv^7)^((q-5)/8) */
-
- # fe_sq(vxx,h->X);
- # fe_mul(vxx,vxx,v);
- # fe_sub(check,vxx,u); /* vx^2-u */
- $vxx = self::fe_sq($h->X);
- $vxx = self::fe_mul($vxx, $v);
- $check = self::fe_sub($vxx, $u); /* vx^2 - u */
-
- # if (fe_isnonzero(check)) {
- # fe_add(check,vxx,u); /* vx^2+u */
- # if (fe_isnonzero(check)) {
- # return -1;
- # }
- # fe_mul(h->X,h->X,sqrtm1);
- # }
- if (self::fe_isnonzero($check)) {
- $check = self::fe_add($vxx, $u); /* vx^2 + u */
- if (self::fe_isnonzero($check)) {
- throw new RangeException('Internal check failed.');
- }
- $h->X = self::fe_mul(
- $h->X,
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1)
- );
- }
-
- # if (fe_isnegative(h->X) == (s[31] >> 7)) {
- # fe_neg(h->X,h->X);
- # }
- $i = self::chrToInt($s[31]);
- if (self::fe_isnegative($h->X) === ($i >> 7)) {
- $h->X = self::fe_neg($h->X);
- }
-
- # fe_mul(h->T,h->X,h->Y);
- $h->T = self::fe_mul($h->X, $h->Y);
- return $h;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
- */
- public static function ge_madd(
- ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R,
- ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
- ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
- ) {
- $r = clone $R;
- $r->X = self::fe_add($p->Y, $p->X);
- $r->Y = self::fe_sub($p->Y, $p->X);
- $r->Z = self::fe_mul($r->X, $q->yplusx);
- $r->Y = self::fe_mul($r->Y, $q->yminusx);
- $r->T = self::fe_mul($q->xy2d, $p->T);
- $t0 = self::fe_add(clone $p->Z, clone $p->Z);
- $r->X = self::fe_sub($r->Z, $r->Y);
- $r->Y = self::fe_add($r->Z, $r->Y);
- $r->Z = self::fe_add($t0, $r->T);
- $r->T = self::fe_sub($t0, $r->T);
-
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
- */
- public static function ge_msub(
- ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R,
- ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
- ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
- ) {
- $r = clone $R;
-
- $r->X = self::fe_add($p->Y, $p->X);
- $r->Y = self::fe_sub($p->Y, $p->X);
- $r->Z = self::fe_mul($r->X, $q->yminusx);
- $r->Y = self::fe_mul($r->Y, $q->yplusx);
- $r->T = self::fe_mul($q->xy2d, $p->T);
- $t0 = self::fe_add($p->Z, $p->Z);
- $r->X = self::fe_sub($r->Z, $r->Y);
- $r->Y = self::fe_add($r->Z, $r->Y);
- $r->Z = self::fe_sub($t0, $r->T);
- $r->T = self::fe_add($t0, $r->T);
-
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
- */
- public static function ge_p1p1_to_p2(ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p)
- {
- $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P2();
- $r->X = self::fe_mul($p->X, $p->T);
- $r->Y = self::fe_mul($p->Y, $p->Z);
- $r->Z = self::fe_mul($p->Z, $p->T);
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
- */
- public static function ge_p1p1_to_p3(ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p)
- {
- $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P3();
- $r->X = self::fe_mul($p->X, $p->T);
- $r->Y = self::fe_mul($p->Y, $p->Z);
- $r->Z = self::fe_mul($p->Z, $p->T);
- $r->T = self::fe_mul($p->X, $p->Y);
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
- */
- public static function ge_p2_0()
- {
- return new ParagonIE_Sodium_Core_Curve25519_Ge_P2(
- self::fe_0(),
- self::fe_1(),
- self::fe_1()
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P2 $p
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
- */
- public static function ge_p2_dbl(ParagonIE_Sodium_Core_Curve25519_Ge_P2 $p)
- {
- $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
-
- $r->X = self::fe_sq($p->X);
- $r->Z = self::fe_sq($p->Y);
- $r->T = self::fe_sq2($p->Z);
- $r->Y = self::fe_add($p->X, $p->Y);
- $t0 = self::fe_sq($r->Y);
- $r->Y = self::fe_add($r->Z, $r->X);
- $r->Z = self::fe_sub($r->Z, $r->X);
- $r->X = self::fe_sub($t0, $r->Y);
- $r->T = self::fe_sub($r->T, $r->Z);
-
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
- */
- public static function ge_p3_0()
- {
- return new ParagonIE_Sodium_Core_Curve25519_Ge_P3(
- self::fe_0(),
- self::fe_1(),
- self::fe_1(),
- self::fe_0()
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_Cached
- */
- public static function ge_p3_to_cached(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p)
- {
- static $d2 = null;
- if ($d2 === null) {
- $d2 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d2);
- }
- /** @var ParagonIE_Sodium_Core_Curve25519_Fe $d2 */
- $r = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached();
- $r->YplusX = self::fe_add($p->Y, $p->X);
- $r->YminusX = self::fe_sub($p->Y, $p->X);
- $r->Z = self::fe_copy($p->Z);
- $r->T2d = self::fe_mul($p->T, $d2);
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
- */
- public static function ge_p3_to_p2(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p)
- {
- return new ParagonIE_Sodium_Core_Curve25519_Ge_P2(
- self::fe_copy($p->X),
- self::fe_copy($p->Y),
- self::fe_copy($p->Z)
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function ge_p3_tobytes(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h)
- {
- $recip = self::fe_invert($h->Z);
- $x = self::fe_mul($h->X, $recip);
- $y = self::fe_mul($h->Y, $recip);
- $s = self::fe_tobytes($y);
- $s[31] = self::intToChr(
- self::chrToInt($s[31]) ^ (self::fe_isnegative($x) << 7)
- );
- return $s;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
- */
- public static function ge_p3_dbl(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p)
- {
- $q = self::ge_p3_to_p2($p);
- return self::ge_p2_dbl($q);
- }
-
- /**
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
- */
- public static function ge_precomp_0()
- {
- return new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
- self::fe_1(),
- self::fe_1(),
- self::fe_0()
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param int $b
- * @param int $c
- * @return int
- */
- public static function equal($b, $c)
- {
- return (int) ((($b ^ $c) - 1) >> 31) & 1;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param int|string $char
- * @return int (1 = yes, 0 = no)
- * @throws SodiumException
- * @throws TypeError
- */
- public static function negative($char)
- {
- if (is_int($char)) {
- return ($char >> 63) & 1;
- }
- $x = self::chrToInt(self::substr($char, 0, 1));
- return (int) ($x >> 63);
- }
-
- /**
- * Conditional move
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $t
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $u
- * @param int $b
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
- */
- public static function cmov(
- ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $t,
- ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $u,
- $b
- ) {
- if (!is_int($b)) {
- throw new InvalidArgumentException('Expected an integer.');
- }
- return new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
- self::fe_cmov($t->yplusx, $u->yplusx, $b),
- self::fe_cmov($t->yminusx, $u->yminusx, $b),
- self::fe_cmov($t->xy2d, $u->xy2d, $b)
- );
- }
-
- /**
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $t
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $u
- * @param int $b
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_Cached
- */
- public static function ge_cmov_cached(
- ParagonIE_Sodium_Core_Curve25519_Ge_Cached $t,
- ParagonIE_Sodium_Core_Curve25519_Ge_Cached $u,
- $b
- ) {
- $b &= 1;
- $ret = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached();
- $ret->YplusX = self::fe_cmov($t->YplusX, $u->YplusX, $b);
- $ret->YminusX = self::fe_cmov($t->YminusX, $u->YminusX, $b);
- $ret->Z = self::fe_cmov($t->Z, $u->Z, $b);
- $ret->T2d = self::fe_cmov($t->T2d, $u->T2d, $b);
- return $ret;
- }
-
- /**
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached[] $cached
- * @param int $b
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_Cached
- * @throws SodiumException
- */
- public static function ge_cmov8_cached(array $cached, $b)
- {
- // const unsigned char bnegative = negative(b);
- // const unsigned char babs = b - (((-bnegative) & b) * ((signed char) 1 << 1));
- $bnegative = self::negative($b);
- $babs = $b - (((-$bnegative) & $b) << 1);
-
- // ge25519_cached_0(t);
- $t = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached(
- self::fe_1(),
- self::fe_1(),
- self::fe_1(),
- self::fe_0()
- );
-
- // ge25519_cmov_cached(t, &cached[0], equal(babs, 1));
- // ge25519_cmov_cached(t, &cached[1], equal(babs, 2));
- // ge25519_cmov_cached(t, &cached[2], equal(babs, 3));
- // ge25519_cmov_cached(t, &cached[3], equal(babs, 4));
- // ge25519_cmov_cached(t, &cached[4], equal(babs, 5));
- // ge25519_cmov_cached(t, &cached[5], equal(babs, 6));
- // ge25519_cmov_cached(t, &cached[6], equal(babs, 7));
- // ge25519_cmov_cached(t, &cached[7], equal(babs, 8));
- for ($x = 0; $x < 8; ++$x) {
- $t = self::ge_cmov_cached($t, $cached[$x], self::equal($babs, $x + 1));
- }
-
- // fe25519_copy(minust.YplusX, t->YminusX);
- // fe25519_copy(minust.YminusX, t->YplusX);
- // fe25519_copy(minust.Z, t->Z);
- // fe25519_neg(minust.T2d, t->T2d);
- $minust = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached(
- self::fe_copy($t->YminusX),
- self::fe_copy($t->YplusX),
- self::fe_copy($t->Z),
- self::fe_neg($t->T2d)
- );
- return self::ge_cmov_cached($t, $minust, $bnegative);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param int $pos
- * @param int $b
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayOffset
- */
- public static function ge_select($pos = 0, $b = 0)
- {
- static $base = null;
- if ($base === null) {
- $base = array();
- /** @var int $i */
- foreach (self::$base as $i => $bas) {
- for ($j = 0; $j < 8; ++$j) {
- $base[$i][$j] = new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($bas[$j][0]),
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($bas[$j][1]),
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($bas[$j][2])
- );
- }
- }
- }
- /** @var array<int, array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Precomp>> $base */
- if (!is_int($pos)) {
- throw new InvalidArgumentException('Position must be an integer');
- }
- if ($pos < 0 || $pos > 31) {
- throw new RangeException('Position is out of range [0, 31]');
- }
-
- /** @var int $bnegative */
- $bnegative = self::negative($b);
- /** @var int $babs */
- $babs = $b - (((-$bnegative) & $b) << 1);
-
- $t = self::ge_precomp_0();
- for ($i = 0; $i < 8; ++$i) {
- $t = self::cmov(
- $t,
- $base[$pos][$i],
- self::equal($babs, $i + 1)
- );
- }
- $minusT = new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
- self::fe_copy($t->yminusx),
- self::fe_copy($t->yplusx),
- self::fe_neg($t->xy2d)
- );
- return self::cmov($t, $minusT, $bnegative);
- }
-
- /**
- * Subtract two group elements.
- *
- * r = p - q
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
- */
- public static function ge_sub(
- ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
- ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
- ) {
- $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
-
- $r->X = self::fe_add($p->Y, $p->X);
- $r->Y = self::fe_sub($p->Y, $p->X);
- $r->Z = self::fe_mul($r->X, $q->YminusX);
- $r->Y = self::fe_mul($r->Y, $q->YplusX);
- $r->T = self::fe_mul($q->T2d, $p->T);
- $r->X = self::fe_mul($p->Z, $q->Z);
- $t0 = self::fe_add($r->X, $r->X);
- $r->X = self::fe_sub($r->Z, $r->Y);
- $r->Y = self::fe_add($r->Z, $r->Y);
- $r->Z = self::fe_sub($t0, $r->T);
- $r->T = self::fe_add($t0, $r->T);
-
- return $r;
- }
-
- /**
- * Convert a group element to a byte string.
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P2 $h
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function ge_tobytes(ParagonIE_Sodium_Core_Curve25519_Ge_P2 $h)
- {
- $recip = self::fe_invert($h->Z);
- $x = self::fe_mul($h->X, $recip);
- $y = self::fe_mul($h->Y, $recip);
- $s = self::fe_tobytes($y);
- $s[31] = self::intToChr(
- self::chrToInt($s[31]) ^ (self::fe_isnegative($x) << 7)
- );
- return $s;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $a
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A
- * @param string $b
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayAccess
- */
- public static function ge_double_scalarmult_vartime(
- $a,
- ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A,
- $b
- ) {
- /** @var array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Cached> $Ai */
- $Ai = array();
-
- /** @var array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Precomp> $Bi */
- static $Bi = array();
- if (!$Bi) {
- for ($i = 0; $i < 8; ++$i) {
- $Bi[$i] = new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$base2[$i][0]),
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$base2[$i][1]),
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$base2[$i][2])
- );
- }
- }
- for ($i = 0; $i < 8; ++$i) {
- $Ai[$i] = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached(
- self::fe_0(),
- self::fe_0(),
- self::fe_0(),
- self::fe_0()
- );
- }
-
- # slide(aslide,a);
- # slide(bslide,b);
- /** @var array<int, int> $aslide */
- $aslide = self::slide($a);
- /** @var array<int, int> $bslide */
- $bslide = self::slide($b);
-
- # ge_p3_to_cached(&Ai[0],A);
- # ge_p3_dbl(&t,A); ge_p1p1_to_p3(&A2,&t);
- $Ai[0] = self::ge_p3_to_cached($A);
- $t = self::ge_p3_dbl($A);
- $A2 = self::ge_p1p1_to_p3($t);
-
- # ge_add(&t,&A2,&Ai[0]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[1],&u);
- # ge_add(&t,&A2,&Ai[1]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[2],&u);
- # ge_add(&t,&A2,&Ai[2]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[3],&u);
- # ge_add(&t,&A2,&Ai[3]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[4],&u);
- # ge_add(&t,&A2,&Ai[4]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[5],&u);
- # ge_add(&t,&A2,&Ai[5]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[6],&u);
- # ge_add(&t,&A2,&Ai[6]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[7],&u);
- for ($i = 0; $i < 7; ++$i) {
- $t = self::ge_add($A2, $Ai[$i]);
- $u = self::ge_p1p1_to_p3($t);
- $Ai[$i + 1] = self::ge_p3_to_cached($u);
- }
-
- # ge_p2_0(r);
- $r = self::ge_p2_0();
-
- # for (i = 255;i >= 0;--i) {
- # if (aslide[i] || bslide[i]) break;
- # }
- $i = 255;
- for (; $i >= 0; --$i) {
- if ($aslide[$i] || $bslide[$i]) {
- break;
- }
- }
-
- # for (;i >= 0;--i) {
- for (; $i >= 0; --$i) {
- # ge_p2_dbl(&t,r);
- $t = self::ge_p2_dbl($r);
-
- # if (aslide[i] > 0) {
- if ($aslide[$i] > 0) {
- # ge_p1p1_to_p3(&u,&t);
- # ge_add(&t,&u,&Ai[aslide[i]/2]);
- $u = self::ge_p1p1_to_p3($t);
- $t = self::ge_add(
- $u,
- $Ai[(int) floor($aslide[$i] / 2)]
- );
- # } else if (aslide[i] < 0) {
- } elseif ($aslide[$i] < 0) {
- # ge_p1p1_to_p3(&u,&t);
- # ge_sub(&t,&u,&Ai[(-aslide[i])/2]);
- $u = self::ge_p1p1_to_p3($t);
- $t = self::ge_sub(
- $u,
- $Ai[(int) floor(-$aslide[$i] / 2)]
- );
- }
-
- # if (bslide[i] > 0) {
- if ($bslide[$i] > 0) {
- /** @var int $index */
- $index = (int) floor($bslide[$i] / 2);
- # ge_p1p1_to_p3(&u,&t);
- # ge_madd(&t,&u,&Bi[bslide[i]/2]);
- $u = self::ge_p1p1_to_p3($t);
- $t = self::ge_madd($t, $u, $Bi[$index]);
- # } else if (bslide[i] < 0) {
- } elseif ($bslide[$i] < 0) {
- /** @var int $index */
- $index = (int) floor(-$bslide[$i] / 2);
- # ge_p1p1_to_p3(&u,&t);
- # ge_msub(&t,&u,&Bi[(-bslide[i])/2]);
- $u = self::ge_p1p1_to_p3($t);
- $t = self::ge_msub($t, $u, $Bi[$index]);
- }
- # ge_p1p1_to_p2(r,&t);
- $r = self::ge_p1p1_to_p2($t);
- }
- return $r;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $a
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedOperand
- */
- public static function ge_scalarmult($a, $p)
- {
- $e = array_fill(0, 64, 0);
-
- /** @var ParagonIE_Sodium_Core_Curve25519_Ge_Cached[] $pi */
- $pi = array();
-
- // ge25519_p3_to_cached(&pi[1 - 1], p); /* p */
- $pi[0] = self::ge_p3_to_cached($p);
-
- // ge25519_p3_dbl(&t2, p);
- // ge25519_p1p1_to_p3(&p2, &t2);
- // ge25519_p3_to_cached(&pi[2 - 1], &p2); /* 2p = 2*p */
- $t2 = self::ge_p3_dbl($p);
- $p2 = self::ge_p1p1_to_p3($t2);
- $pi[1] = self::ge_p3_to_cached($p2);
-
- // ge25519_add_cached(&t3, p, &pi[2 - 1]);
- // ge25519_p1p1_to_p3(&p3, &t3);
- // ge25519_p3_to_cached(&pi[3 - 1], &p3); /* 3p = 2p+p */
- $t3 = self::ge_add($p, $pi[1]);
- $p3 = self::ge_p1p1_to_p3($t3);
- $pi[2] = self::ge_p3_to_cached($p3);
-
- // ge25519_p3_dbl(&t4, &p2);
- // ge25519_p1p1_to_p3(&p4, &t4);
- // ge25519_p3_to_cached(&pi[4 - 1], &p4); /* 4p = 2*2p */
- $t4 = self::ge_p3_dbl($p2);
- $p4 = self::ge_p1p1_to_p3($t4);
- $pi[3] = self::ge_p3_to_cached($p4);
-
- // ge25519_add_cached(&t5, p, &pi[4 - 1]);
- // ge25519_p1p1_to_p3(&p5, &t5);
- // ge25519_p3_to_cached(&pi[5 - 1], &p5); /* 5p = 4p+p */
- $t5 = self::ge_add($p, $pi[3]);
- $p5 = self::ge_p1p1_to_p3($t5);
- $pi[4] = self::ge_p3_to_cached($p5);
-
- // ge25519_p3_dbl(&t6, &p3);
- // ge25519_p1p1_to_p3(&p6, &t6);
- // ge25519_p3_to_cached(&pi[6 - 1], &p6); /* 6p = 2*3p */
- $t6 = self::ge_p3_dbl($p3);
- $p6 = self::ge_p1p1_to_p3($t6);
- $pi[5] = self::ge_p3_to_cached($p6);
-
- // ge25519_add_cached(&t7, p, &pi[6 - 1]);
- // ge25519_p1p1_to_p3(&p7, &t7);
- // ge25519_p3_to_cached(&pi[7 - 1], &p7); /* 7p = 6p+p */
- $t7 = self::ge_add($p, $pi[5]);
- $p7 = self::ge_p1p1_to_p3($t7);
- $pi[6] = self::ge_p3_to_cached($p7);
-
- // ge25519_p3_dbl(&t8, &p4);
- // ge25519_p1p1_to_p3(&p8, &t8);
- // ge25519_p3_to_cached(&pi[8 - 1], &p8); /* 8p = 2*4p */
- $t8 = self::ge_p3_dbl($p4);
- $p8 = self::ge_p1p1_to_p3($t8);
- $pi[7] = self::ge_p3_to_cached($p8);
-
-
- // for (i = 0; i < 32; ++i) {
- // e[2 * i + 0] = (a[i] >> 0) & 15;
- // e[2 * i + 1] = (a[i] >> 4) & 15;
- // }
- for ($i = 0; $i < 32; ++$i) {
- $e[($i << 1) ] = self::chrToInt($a[$i]) & 15;
- $e[($i << 1) + 1] = (self::chrToInt($a[$i]) >> 4) & 15;
- }
- // /* each e[i] is between 0 and 15 */
- // /* e[63] is between 0 and 7 */
-
- // carry = 0;
- // for (i = 0; i < 63; ++i) {
- // e[i] += carry;
- // carry = e[i] + 8;
- // carry >>= 4;
- // e[i] -= carry * ((signed char) 1 << 4);
- // }
- $carry = 0;
- for ($i = 0; $i < 64; ++$i) {
- $e[$i] += $carry;
- $carry = $e[$i] + 8;
- $carry >>= 4;
- $e[$i] -= $carry << 4;
- }
- // e[63] += carry;
- // /* each e[i] is between -8 and 8 */
- $e[63] += $carry;
-
- // ge25519_p3_0(h);
- $h = self::ge_p3_0();
-
- // for (i = 63; i != 0; i--) {
- for ($i = 63; $i != 0; --$i) {
- // ge25519_cmov8_cached(&t, pi, e[i]);
- $t = self::ge_cmov8_cached($pi, $e[$i]);
- // ge25519_add_cached(&r, h, &t);
- $r = self::ge_add($h, $t);
-
- // ge25519_p1p1_to_p2(&s, &r);
- // ge25519_p2_dbl(&r, &s);
- // ge25519_p1p1_to_p2(&s, &r);
- // ge25519_p2_dbl(&r, &s);
- // ge25519_p1p1_to_p2(&s, &r);
- // ge25519_p2_dbl(&r, &s);
- // ge25519_p1p1_to_p2(&s, &r);
- // ge25519_p2_dbl(&r, &s);
- $s = self::ge_p1p1_to_p2($r);
- $r = self::ge_p2_dbl($s);
- $s = self::ge_p1p1_to_p2($r);
- $r = self::ge_p2_dbl($s);
- $s = self::ge_p1p1_to_p2($r);
- $r = self::ge_p2_dbl($s);
- $s = self::ge_p1p1_to_p2($r);
- $r = self::ge_p2_dbl($s);
-
- // ge25519_p1p1_to_p3(h, &r); /* *16 */
- $h = self::ge_p1p1_to_p3($r); /* *16 */
- }
-
- // ge25519_cmov8_cached(&t, pi, e[i]);
- // ge25519_add_cached(&r, h, &t);
- // ge25519_p1p1_to_p3(h, &r);
- $t = self::ge_cmov8_cached($pi, $e[0]);
- $r = self::ge_add($h, $t);
- return self::ge_p1p1_to_p3($r);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $a
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedOperand
- */
- public static function ge_scalarmult_base($a)
- {
- /** @var array<int, int> $e */
- $e = array();
- $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
-
- for ($i = 0; $i < 32; ++$i) {
- /** @var int $dbl */
- $dbl = (int) $i << 1;
- $e[$dbl] = (int) self::chrToInt($a[$i]) & 15;
- $e[$dbl + 1] = (int) (self::chrToInt($a[$i]) >> 4) & 15;
- }
-
- /** @var int $carry */
- $carry = 0;
- for ($i = 0; $i < 63; ++$i) {
- $e[$i] += $carry;
- /** @var int $carry */
- $carry = $e[$i] + 8;
- /** @var int $carry */
- $carry >>= 4;
- $e[$i] -= $carry << 4;
- }
- /** @var array<int, int> $e */
- $e[63] += (int) $carry;
-
- $h = self::ge_p3_0();
-
- for ($i = 1; $i < 64; $i += 2) {
- $t = self::ge_select((int) floor($i / 2), (int) $e[$i]);
- $r = self::ge_madd($r, $h, $t);
- $h = self::ge_p1p1_to_p3($r);
- }
-
- $r = self::ge_p3_dbl($h);
-
- $s = self::ge_p1p1_to_p2($r);
- $r = self::ge_p2_dbl($s);
- $s = self::ge_p1p1_to_p2($r);
- $r = self::ge_p2_dbl($s);
- $s = self::ge_p1p1_to_p2($r);
- $r = self::ge_p2_dbl($s);
-
- $h = self::ge_p1p1_to_p3($r);
-
- for ($i = 0; $i < 64; $i += 2) {
- $t = self::ge_select($i >> 1, (int) $e[$i]);
- $r = self::ge_madd($r, $h, $t);
- $h = self::ge_p1p1_to_p3($r);
- }
- return $h;
- }
-
- /**
- * Calculates (ab + c) mod l
- * where l = 2^252 + 27742317777372353535851937790883648493
- *
- * @internal You should not use this directly from another application
- *
- * @param string $a
- * @param string $b
- * @param string $c
- * @return string
- * @throws TypeError
- */
- public static function sc_muladd($a, $b, $c)
- {
- /** @var int $a0 */
- $a0 = 2097151 & self::load_3(self::substr($a, 0, 3));
- /** @var int $a1 */
- $a1 = 2097151 & (self::load_4(self::substr($a, 2, 4)) >> 5);
- /** @var int $a2 */
- $a2 = 2097151 & (self::load_3(self::substr($a, 5, 3)) >> 2);
- /** @var int $a3 */
- $a3 = 2097151 & (self::load_4(self::substr($a, 7, 4)) >> 7);
- /** @var int $a4 */
- $a4 = 2097151 & (self::load_4(self::substr($a, 10, 4)) >> 4);
- /** @var int $a5 */
- $a5 = 2097151 & (self::load_3(self::substr($a, 13, 3)) >> 1);
- /** @var int $a6 */
- $a6 = 2097151 & (self::load_4(self::substr($a, 15, 4)) >> 6);
- /** @var int $a7 */
- $a7 = 2097151 & (self::load_3(self::substr($a, 18, 3)) >> 3);
- /** @var int $a8 */
- $a8 = 2097151 & self::load_3(self::substr($a, 21, 3));
- /** @var int $a9 */
- $a9 = 2097151 & (self::load_4(self::substr($a, 23, 4)) >> 5);
- /** @var int $a10 */
- $a10 = 2097151 & (self::load_3(self::substr($a, 26, 3)) >> 2);
- /** @var int $a11 */
- $a11 = (self::load_4(self::substr($a, 28, 4)) >> 7);
-
- /** @var int $b0 */
- $b0 = 2097151 & self::load_3(self::substr($b, 0, 3));
- /** @var int $b1 */
- $b1 = 2097151 & (self::load_4(self::substr($b, 2, 4)) >> 5);
- /** @var int $b2 */
- $b2 = 2097151 & (self::load_3(self::substr($b, 5, 3)) >> 2);
- /** @var int $b3 */
- $b3 = 2097151 & (self::load_4(self::substr($b, 7, 4)) >> 7);
- /** @var int $b4 */
- $b4 = 2097151 & (self::load_4(self::substr($b, 10, 4)) >> 4);
- /** @var int $b5 */
- $b5 = 2097151 & (self::load_3(self::substr($b, 13, 3)) >> 1);
- /** @var int $b6 */
- $b6 = 2097151 & (self::load_4(self::substr($b, 15, 4)) >> 6);
- /** @var int $b7 */
- $b7 = 2097151 & (self::load_3(self::substr($b, 18, 3)) >> 3);
- /** @var int $b8 */
- $b8 = 2097151 & self::load_3(self::substr($b, 21, 3));
- /** @var int $b9 */
- $b9 = 2097151 & (self::load_4(self::substr($b, 23, 4)) >> 5);
- /** @var int $b10 */
- $b10 = 2097151 & (self::load_3(self::substr($b, 26, 3)) >> 2);
- /** @var int $b11 */
- $b11 = (self::load_4(self::substr($b, 28, 4)) >> 7);
-
- /** @var int $c0 */
- $c0 = 2097151 & self::load_3(self::substr($c, 0, 3));
- /** @var int $c1 */
- $c1 = 2097151 & (self::load_4(self::substr($c, 2, 4)) >> 5);
- /** @var int $c2 */
- $c2 = 2097151 & (self::load_3(self::substr($c, 5, 3)) >> 2);
- /** @var int $c3 */
- $c3 = 2097151 & (self::load_4(self::substr($c, 7, 4)) >> 7);
- /** @var int $c4 */
- $c4 = 2097151 & (self::load_4(self::substr($c, 10, 4)) >> 4);
- /** @var int $c5 */
- $c5 = 2097151 & (self::load_3(self::substr($c, 13, 3)) >> 1);
- /** @var int $c6 */
- $c6 = 2097151 & (self::load_4(self::substr($c, 15, 4)) >> 6);
- /** @var int $c7 */
- $c7 = 2097151 & (self::load_3(self::substr($c, 18, 3)) >> 3);
- /** @var int $c8 */
- $c8 = 2097151 & self::load_3(self::substr($c, 21, 3));
- /** @var int $c9 */
- $c9 = 2097151 & (self::load_4(self::substr($c, 23, 4)) >> 5);
- /** @var int $c10 */
- $c10 = 2097151 & (self::load_3(self::substr($c, 26, 3)) >> 2);
- /** @var int $c11 */
- $c11 = (self::load_4(self::substr($c, 28, 4)) >> 7);
-
- /* Can't really avoid the pyramid here: */
- $s0 = $c0 + self::mul($a0, $b0, 24);
- $s1 = $c1 + self::mul($a0, $b1, 24) + self::mul($a1, $b0, 24);
- $s2 = $c2 + self::mul($a0, $b2, 24) + self::mul($a1, $b1, 24) + self::mul($a2, $b0, 24);
- $s3 = $c3 + self::mul($a0, $b3, 24) + self::mul($a1, $b2, 24) + self::mul($a2, $b1, 24) + self::mul($a3, $b0, 24);
- $s4 = $c4 + self::mul($a0, $b4, 24) + self::mul($a1, $b3, 24) + self::mul($a2, $b2, 24) + self::mul($a3, $b1, 24) +
- self::mul($a4, $b0, 24);
- $s5 = $c5 + self::mul($a0, $b5, 24) + self::mul($a1, $b4, 24) + self::mul($a2, $b3, 24) + self::mul($a3, $b2, 24) +
- self::mul($a4, $b1, 24) + self::mul($a5, $b0, 24);
- $s6 = $c6 + self::mul($a0, $b6, 24) + self::mul($a1, $b5, 24) + self::mul($a2, $b4, 24) + self::mul($a3, $b3, 24) +
- self::mul($a4, $b2, 24) + self::mul($a5, $b1, 24) + self::mul($a6, $b0, 24);
- $s7 = $c7 + self::mul($a0, $b7, 24) + self::mul($a1, $b6, 24) + self::mul($a2, $b5, 24) + self::mul($a3, $b4, 24) +
- self::mul($a4, $b3, 24) + self::mul($a5, $b2, 24) + self::mul($a6, $b1, 24) + self::mul($a7, $b0, 24);
- $s8 = $c8 + self::mul($a0, $b8, 24) + self::mul($a1, $b7, 24) + self::mul($a2, $b6, 24) + self::mul($a3, $b5, 24) +
- self::mul($a4, $b4, 24) + self::mul($a5, $b3, 24) + self::mul($a6, $b2, 24) + self::mul($a7, $b1, 24) +
- self::mul($a8, $b0, 24);
- $s9 = $c9 + self::mul($a0, $b9, 24) + self::mul($a1, $b8, 24) + self::mul($a2, $b7, 24) + self::mul($a3, $b6, 24) +
- self::mul($a4, $b5, 24) + self::mul($a5, $b4, 24) + self::mul($a6, $b3, 24) + self::mul($a7, $b2, 24) +
- self::mul($a8, $b1, 24) + self::mul($a9, $b0, 24);
- $s10 = $c10 + self::mul($a0, $b10, 24) + self::mul($a1, $b9, 24) + self::mul($a2, $b8, 24) + self::mul($a3, $b7, 24) +
- self::mul($a4, $b6, 24) + self::mul($a5, $b5, 24) + self::mul($a6, $b4, 24) + self::mul($a7, $b3, 24) +
- self::mul($a8, $b2, 24) + self::mul($a9, $b1, 24) + self::mul($a10, $b0, 24);
- $s11 = $c11 + self::mul($a0, $b11, 24) + self::mul($a1, $b10, 24) + self::mul($a2, $b9, 24) + self::mul($a3, $b8, 24) +
- self::mul($a4, $b7, 24) + self::mul($a5, $b6, 24) + self::mul($a6, $b5, 24) + self::mul($a7, $b4, 24) +
- self::mul($a8, $b3, 24) + self::mul($a9, $b2, 24) + self::mul($a10, $b1, 24) + self::mul($a11, $b0, 24);
- $s12 = self::mul($a1, $b11, 24) + self::mul($a2, $b10, 24) + self::mul($a3, $b9, 24) + self::mul($a4, $b8, 24) +
- self::mul($a5, $b7, 24) + self::mul($a6, $b6, 24) + self::mul($a7, $b5, 24) + self::mul($a8, $b4, 24) +
- self::mul($a9, $b3, 24) + self::mul($a10, $b2, 24) + self::mul($a11, $b1, 24);
- $s13 = self::mul($a2, $b11, 24) + self::mul($a3, $b10, 24) + self::mul($a4, $b9, 24) + self::mul($a5, $b8, 24) +
- self::mul($a6, $b7, 24) + self::mul($a7, $b6, 24) + self::mul($a8, $b5, 24) + self::mul($a9, $b4, 24) +
- self::mul($a10, $b3, 24) + self::mul($a11, $b2, 24);
- $s14 = self::mul($a3, $b11, 24) + self::mul($a4, $b10, 24) + self::mul($a5, $b9, 24) + self::mul($a6, $b8, 24) +
- self::mul($a7, $b7, 24) + self::mul($a8, $b6, 24) + self::mul($a9, $b5, 24) + self::mul($a10, $b4, 24) +
- self::mul($a11, $b3, 24);
- $s15 = self::mul($a4, $b11, 24) + self::mul($a5, $b10, 24) + self::mul($a6, $b9, 24) + self::mul($a7, $b8, 24) +
- self::mul($a8, $b7, 24) + self::mul($a9, $b6, 24) + self::mul($a10, $b5, 24) + self::mul($a11, $b4, 24);
- $s16 = self::mul($a5, $b11, 24) + self::mul($a6, $b10, 24) + self::mul($a7, $b9, 24) + self::mul($a8, $b8, 24) +
- self::mul($a9, $b7, 24) + self::mul($a10, $b6, 24) + self::mul($a11, $b5, 24);
- $s17 = self::mul($a6, $b11, 24) + self::mul($a7, $b10, 24) + self::mul($a8, $b9, 24) + self::mul($a9, $b8, 24) +
- self::mul($a10, $b7, 24) + self::mul($a11, $b6, 24);
- $s18 = self::mul($a7, $b11, 24) + self::mul($a8, $b10, 24) + self::mul($a9, $b9, 24) + self::mul($a10, $b8, 24) +
- self::mul($a11, $b7, 24);
- $s19 = self::mul($a8, $b11, 24) + self::mul($a9, $b10, 24) + self::mul($a10, $b9, 24) + self::mul($a11, $b8, 24);
- $s20 = self::mul($a9, $b11, 24) + self::mul($a10, $b10, 24) + self::mul($a11, $b9, 24);
- $s21 = self::mul($a10, $b11, 24) + self::mul($a11, $b10, 24);
- $s22 = self::mul($a11, $b11, 24);
- $s23 = 0;
-
- /** @var int $carry0 */
- $carry0 = ($s0 + (1 << 20)) >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- /** @var int $carry2 */
- $carry2 = ($s2 + (1 << 20)) >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- /** @var int $carry4 */
- $carry4 = ($s4 + (1 << 20)) >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- /** @var int $carry6 */
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry8 */
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry10 */
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- /** @var int $carry12 */
- $carry12 = ($s12 + (1 << 20)) >> 21;
- $s13 += $carry12;
- $s12 -= $carry12 << 21;
- /** @var int $carry14 */
- $carry14 = ($s14 + (1 << 20)) >> 21;
- $s15 += $carry14;
- $s14 -= $carry14 << 21;
- /** @var int $carry16 */
- $carry16 = ($s16 + (1 << 20)) >> 21;
- $s17 += $carry16;
- $s16 -= $carry16 << 21;
- /** @var int $carry18 */
- $carry18 = ($s18 + (1 << 20)) >> 21;
- $s19 += $carry18;
- $s18 -= $carry18 << 21;
- /** @var int $carry20 */
- $carry20 = ($s20 + (1 << 20)) >> 21;
- $s21 += $carry20;
- $s20 -= $carry20 << 21;
- /** @var int $carry22 */
- $carry22 = ($s22 + (1 << 20)) >> 21;
- $s23 += $carry22;
- $s22 -= $carry22 << 21;
-
- /** @var int $carry1 */
- $carry1 = ($s1 + (1 << 20)) >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- /** @var int $carry3 */
- $carry3 = ($s3 + (1 << 20)) >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- /** @var int $carry5 */
- $carry5 = ($s5 + (1 << 20)) >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- /** @var int $carry7 */
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry9 */
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry11 */
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
- /** @var int $carry13 */
- $carry13 = ($s13 + (1 << 20)) >> 21;
- $s14 += $carry13;
- $s13 -= $carry13 << 21;
- /** @var int $carry15 */
- $carry15 = ($s15 + (1 << 20)) >> 21;
- $s16 += $carry15;
- $s15 -= $carry15 << 21;
- /** @var int $carry17 */
- $carry17 = ($s17 + (1 << 20)) >> 21;
- $s18 += $carry17;
- $s17 -= $carry17 << 21;
- /** @var int $carry19 */
- $carry19 = ($s19 + (1 << 20)) >> 21;
- $s20 += $carry19;
- $s19 -= $carry19 << 21;
- /** @var int $carry21 */
- $carry21 = ($s21 + (1 << 20)) >> 21;
- $s22 += $carry21;
- $s21 -= $carry21 << 21;
-
- $s11 += self::mul($s23, 666643, 20);
- $s12 += self::mul($s23, 470296, 19);
- $s13 += self::mul($s23, 654183, 20);
- $s14 -= self::mul($s23, 997805, 20);
- $s15 += self::mul($s23, 136657, 18);
- $s16 -= self::mul($s23, 683901, 20);
-
- $s10 += self::mul($s22, 666643, 20);
- $s11 += self::mul($s22, 470296, 19);
- $s12 += self::mul($s22, 654183, 20);
- $s13 -= self::mul($s22, 997805, 20);
- $s14 += self::mul($s22, 136657, 18);
- $s15 -= self::mul($s22, 683901, 20);
-
- $s9 += self::mul($s21, 666643, 20);
- $s10 += self::mul($s21, 470296, 19);
- $s11 += self::mul($s21, 654183, 20);
- $s12 -= self::mul($s21, 997805, 20);
- $s13 += self::mul($s21, 136657, 18);
- $s14 -= self::mul($s21, 683901, 20);
-
- $s8 += self::mul($s20, 666643, 20);
- $s9 += self::mul($s20, 470296, 19);
- $s10 += self::mul($s20, 654183, 20);
- $s11 -= self::mul($s20, 997805, 20);
- $s12 += self::mul($s20, 136657, 18);
- $s13 -= self::mul($s20, 683901, 20);
-
- $s7 += self::mul($s19, 666643, 20);
- $s8 += self::mul($s19, 470296, 19);
- $s9 += self::mul($s19, 654183, 20);
- $s10 -= self::mul($s19, 997805, 20);
- $s11 += self::mul($s19, 136657, 18);
- $s12 -= self::mul($s19, 683901, 20);
-
- $s6 += self::mul($s18, 666643, 20);
- $s7 += self::mul($s18, 470296, 19);
- $s8 += self::mul($s18, 654183, 20);
- $s9 -= self::mul($s18, 997805, 20);
- $s10 += self::mul($s18, 136657, 18);
- $s11 -= self::mul($s18, 683901, 20);
-
- /** @var int $carry6 */
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry8 */
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry10 */
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- /** @var int $carry12 */
- $carry12 = ($s12 + (1 << 20)) >> 21;
- $s13 += $carry12;
- $s12 -= $carry12 << 21;
- /** @var int $carry14 */
- $carry14 = ($s14 + (1 << 20)) >> 21;
- $s15 += $carry14;
- $s14 -= $carry14 << 21;
- /** @var int $carry16 */
- $carry16 = ($s16 + (1 << 20)) >> 21;
- $s17 += $carry16;
- $s16 -= $carry16 << 21;
-
- /** @var int $carry7 */
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry9 */
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry11 */
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
- /** @var int $carry13 */
- $carry13 = ($s13 + (1 << 20)) >> 21;
- $s14 += $carry13;
- $s13 -= $carry13 << 21;
- /** @var int $carry15 */
- $carry15 = ($s15 + (1 << 20)) >> 21;
- $s16 += $carry15;
- $s15 -= $carry15 << 21;
-
- $s5 += self::mul($s17, 666643, 20);
- $s6 += self::mul($s17, 470296, 19);
- $s7 += self::mul($s17, 654183, 20);
- $s8 -= self::mul($s17, 997805, 20);
- $s9 += self::mul($s17, 136657, 18);
- $s10 -= self::mul($s17, 683901, 20);
-
- $s4 += self::mul($s16, 666643, 20);
- $s5 += self::mul($s16, 470296, 19);
- $s6 += self::mul($s16, 654183, 20);
- $s7 -= self::mul($s16, 997805, 20);
- $s8 += self::mul($s16, 136657, 18);
- $s9 -= self::mul($s16, 683901, 20);
-
- $s3 += self::mul($s15, 666643, 20);
- $s4 += self::mul($s15, 470296, 19);
- $s5 += self::mul($s15, 654183, 20);
- $s6 -= self::mul($s15, 997805, 20);
- $s7 += self::mul($s15, 136657, 18);
- $s8 -= self::mul($s15, 683901, 20);
-
- $s2 += self::mul($s14, 666643, 20);
- $s3 += self::mul($s14, 470296, 19);
- $s4 += self::mul($s14, 654183, 20);
- $s5 -= self::mul($s14, 997805, 20);
- $s6 += self::mul($s14, 136657, 18);
- $s7 -= self::mul($s14, 683901, 20);
-
- $s1 += self::mul($s13, 666643, 20);
- $s2 += self::mul($s13, 470296, 19);
- $s3 += self::mul($s13, 654183, 20);
- $s4 -= self::mul($s13, 997805, 20);
- $s5 += self::mul($s13, 136657, 18);
- $s6 -= self::mul($s13, 683901, 20);
-
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
- $s12 = 0;
-
- /** @var int $carry0 */
- $carry0 = ($s0 + (1 << 20)) >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- /** @var int $carry2 */
- $carry2 = ($s2 + (1 << 20)) >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- /** @var int $carry4 */
- $carry4 = ($s4 + (1 << 20)) >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- /** @var int $carry6 */
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry8 */
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry10 */
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
-
- /** @var int $carry1 */
- $carry1 = ($s1 + (1 << 20)) >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- /** @var int $carry3 */
- $carry3 = ($s3 + (1 << 20)) >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- /** @var int $carry5 */
- $carry5 = ($s5 + (1 << 20)) >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- /** @var int $carry7 */
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry9 */
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry11 */
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
-
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
- $s12 = 0;
-
- /** @var int $carry0 */
- $carry0 = $s0 >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- /** @var int $carry1 */
- $carry1 = $s1 >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- /** @var int $carry2 */
- $carry2 = $s2 >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- /** @var int $carry3 */
- $carry3 = $s3 >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- /** @var int $carry4 */
- $carry4 = $s4 >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- /** @var int $carry5 */
- $carry5 = $s5 >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- /** @var int $carry6 */
- $carry6 = $s6 >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry7 */
- $carry7 = $s7 >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry8 */
- $carry8 = $s8 >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry9 */
- $carry9 = $s9 >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry10 */
- $carry10 = $s10 >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- /** @var int $carry11 */
- $carry11 = $s11 >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
-
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
-
- /** @var int $carry0 */
- $carry0 = $s0 >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- /** @var int $carry1 */
- $carry1 = $s1 >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- /** @var int $carry2 */
- $carry2 = $s2 >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- /** @var int $carry3 */
- $carry3 = $s3 >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- /** @var int $carry4 */
- $carry4 = $s4 >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- /** @var int $carry5 */
- $carry5 = $s5 >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- /** @var int $carry6 */
- $carry6 = $s6 >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry7 */
- $carry7 = $s7 >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry8 */
- $carry8 = $s8 >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry9 */
- $carry9 = $s9 >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry10 */
- $carry10 = $s10 >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
-
- /**
- * @var array<int, int>
- */
- $arr = array(
- (int) (0xff & ($s0 >> 0)),
- (int) (0xff & ($s0 >> 8)),
- (int) (0xff & (($s0 >> 16) | $s1 << 5)),
- (int) (0xff & ($s1 >> 3)),
- (int) (0xff & ($s1 >> 11)),
- (int) (0xff & (($s1 >> 19) | $s2 << 2)),
- (int) (0xff & ($s2 >> 6)),
- (int) (0xff & (($s2 >> 14) | $s3 << 7)),
- (int) (0xff & ($s3 >> 1)),
- (int) (0xff & ($s3 >> 9)),
- (int) (0xff & (($s3 >> 17) | $s4 << 4)),
- (int) (0xff & ($s4 >> 4)),
- (int) (0xff & ($s4 >> 12)),
- (int) (0xff & (($s4 >> 20) | $s5 << 1)),
- (int) (0xff & ($s5 >> 7)),
- (int) (0xff & (($s5 >> 15) | $s6 << 6)),
- (int) (0xff & ($s6 >> 2)),
- (int) (0xff & ($s6 >> 10)),
- (int) (0xff & (($s6 >> 18) | $s7 << 3)),
- (int) (0xff & ($s7 >> 5)),
- (int) (0xff & ($s7 >> 13)),
- (int) (0xff & ($s8 >> 0)),
- (int) (0xff & ($s8 >> 8)),
- (int) (0xff & (($s8 >> 16) | $s9 << 5)),
- (int) (0xff & ($s9 >> 3)),
- (int) (0xff & ($s9 >> 11)),
- (int) (0xff & (($s9 >> 19) | $s10 << 2)),
- (int) (0xff & ($s10 >> 6)),
- (int) (0xff & (($s10 >> 14) | $s11 << 7)),
- (int) (0xff & ($s11 >> 1)),
- (int) (0xff & ($s11 >> 9)),
- 0xff & ($s11 >> 17)
- );
- return self::intArrayToString($arr);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $s
- * @return string
- * @throws TypeError
- */
- public static function sc_reduce($s)
- {
- /** @var int $s0 */
- $s0 = 2097151 & self::load_3(self::substr($s, 0, 3));
- /** @var int $s1 */
- $s1 = 2097151 & (self::load_4(self::substr($s, 2, 4)) >> 5);
- /** @var int $s2 */
- $s2 = 2097151 & (self::load_3(self::substr($s, 5, 3)) >> 2);
- /** @var int $s3 */
- $s3 = 2097151 & (self::load_4(self::substr($s, 7, 4)) >> 7);
- /** @var int $s4 */
- $s4 = 2097151 & (self::load_4(self::substr($s, 10, 4)) >> 4);
- /** @var int $s5 */
- $s5 = 2097151 & (self::load_3(self::substr($s, 13, 3)) >> 1);
- /** @var int $s6 */
- $s6 = 2097151 & (self::load_4(self::substr($s, 15, 4)) >> 6);
- /** @var int $s7 */
- $s7 = 2097151 & (self::load_3(self::substr($s, 18, 4)) >> 3);
- /** @var int $s8 */
- $s8 = 2097151 & self::load_3(self::substr($s, 21, 3));
- /** @var int $s9 */
- $s9 = 2097151 & (self::load_4(self::substr($s, 23, 4)) >> 5);
- /** @var int $s10 */
- $s10 = 2097151 & (self::load_3(self::substr($s, 26, 3)) >> 2);
- /** @var int $s11 */
- $s11 = 2097151 & (self::load_4(self::substr($s, 28, 4)) >> 7);
- /** @var int $s12 */
- $s12 = 2097151 & (self::load_4(self::substr($s, 31, 4)) >> 4);
- /** @var int $s13 */
- $s13 = 2097151 & (self::load_3(self::substr($s, 34, 3)) >> 1);
- /** @var int $s14 */
- $s14 = 2097151 & (self::load_4(self::substr($s, 36, 4)) >> 6);
- /** @var int $s15 */
- $s15 = 2097151 & (self::load_3(self::substr($s, 39, 4)) >> 3);
- /** @var int $s16 */
- $s16 = 2097151 & self::load_3(self::substr($s, 42, 3));
- /** @var int $s17 */
- $s17 = 2097151 & (self::load_4(self::substr($s, 44, 4)) >> 5);
- /** @var int $s18 */
- $s18 = 2097151 & (self::load_3(self::substr($s, 47, 3)) >> 2);
- /** @var int $s19 */
- $s19 = 2097151 & (self::load_4(self::substr($s, 49, 4)) >> 7);
- /** @var int $s20 */
- $s20 = 2097151 & (self::load_4(self::substr($s, 52, 4)) >> 4);
- /** @var int $s21 */
- $s21 = 2097151 & (self::load_3(self::substr($s, 55, 3)) >> 1);
- /** @var int $s22 */
- $s22 = 2097151 & (self::load_4(self::substr($s, 57, 4)) >> 6);
- /** @var int $s23 */
- $s23 = (self::load_4(self::substr($s, 60, 4)) >> 3);
-
- $s11 += self::mul($s23, 666643, 20);
- $s12 += self::mul($s23, 470296, 19);
- $s13 += self::mul($s23, 654183, 20);
- $s14 -= self::mul($s23, 997805, 20);
- $s15 += self::mul($s23, 136657, 18);
- $s16 -= self::mul($s23, 683901, 20);
-
- $s10 += self::mul($s22, 666643, 20);
- $s11 += self::mul($s22, 470296, 19);
- $s12 += self::mul($s22, 654183, 20);
- $s13 -= self::mul($s22, 997805, 20);
- $s14 += self::mul($s22, 136657, 18);
- $s15 -= self::mul($s22, 683901, 20);
-
- $s9 += self::mul($s21, 666643, 20);
- $s10 += self::mul($s21, 470296, 19);
- $s11 += self::mul($s21, 654183, 20);
- $s12 -= self::mul($s21, 997805, 20);
- $s13 += self::mul($s21, 136657, 18);
- $s14 -= self::mul($s21, 683901, 20);
-
- $s8 += self::mul($s20, 666643, 20);
- $s9 += self::mul($s20, 470296, 19);
- $s10 += self::mul($s20, 654183, 20);
- $s11 -= self::mul($s20, 997805, 20);
- $s12 += self::mul($s20, 136657, 18);
- $s13 -= self::mul($s20, 683901, 20);
-
- $s7 += self::mul($s19, 666643, 20);
- $s8 += self::mul($s19, 470296, 19);
- $s9 += self::mul($s19, 654183, 20);
- $s10 -= self::mul($s19, 997805, 20);
- $s11 += self::mul($s19, 136657, 18);
- $s12 -= self::mul($s19, 683901, 20);
-
- $s6 += self::mul($s18, 666643, 20);
- $s7 += self::mul($s18, 470296, 19);
- $s8 += self::mul($s18, 654183, 20);
- $s9 -= self::mul($s18, 997805, 20);
- $s10 += self::mul($s18, 136657, 18);
- $s11 -= self::mul($s18, 683901, 20);
-
- /** @var int $carry6 */
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry8 */
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry10 */
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- /** @var int $carry12 */
- $carry12 = ($s12 + (1 << 20)) >> 21;
- $s13 += $carry12;
- $s12 -= $carry12 << 21;
- /** @var int $carry14 */
- $carry14 = ($s14 + (1 << 20)) >> 21;
- $s15 += $carry14;
- $s14 -= $carry14 << 21;
- /** @var int $carry16 */
- $carry16 = ($s16 + (1 << 20)) >> 21;
- $s17 += $carry16;
- $s16 -= $carry16 << 21;
-
- /** @var int $carry7 */
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry9 */
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry11 */
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
- /** @var int $carry13 */
- $carry13 = ($s13 + (1 << 20)) >> 21;
- $s14 += $carry13;
- $s13 -= $carry13 << 21;
- /** @var int $carry15 */
- $carry15 = ($s15 + (1 << 20)) >> 21;
- $s16 += $carry15;
- $s15 -= $carry15 << 21;
-
- $s5 += self::mul($s17, 666643, 20);
- $s6 += self::mul($s17, 470296, 19);
- $s7 += self::mul($s17, 654183, 20);
- $s8 -= self::mul($s17, 997805, 20);
- $s9 += self::mul($s17, 136657, 18);
- $s10 -= self::mul($s17, 683901, 20);
-
- $s4 += self::mul($s16, 666643, 20);
- $s5 += self::mul($s16, 470296, 19);
- $s6 += self::mul($s16, 654183, 20);
- $s7 -= self::mul($s16, 997805, 20);
- $s8 += self::mul($s16, 136657, 18);
- $s9 -= self::mul($s16, 683901, 20);
-
- $s3 += self::mul($s15, 666643, 20);
- $s4 += self::mul($s15, 470296, 19);
- $s5 += self::mul($s15, 654183, 20);
- $s6 -= self::mul($s15, 997805, 20);
- $s7 += self::mul($s15, 136657, 18);
- $s8 -= self::mul($s15, 683901, 20);
-
- $s2 += self::mul($s14, 666643, 20);
- $s3 += self::mul($s14, 470296, 19);
- $s4 += self::mul($s14, 654183, 20);
- $s5 -= self::mul($s14, 997805, 20);
- $s6 += self::mul($s14, 136657, 18);
- $s7 -= self::mul($s14, 683901, 20);
-
- $s1 += self::mul($s13, 666643, 20);
- $s2 += self::mul($s13, 470296, 19);
- $s3 += self::mul($s13, 654183, 20);
- $s4 -= self::mul($s13, 997805, 20);
- $s5 += self::mul($s13, 136657, 18);
- $s6 -= self::mul($s13, 683901, 20);
-
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
- $s12 = 0;
-
- /** @var int $carry0 */
- $carry0 = ($s0 + (1 << 20)) >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- /** @var int $carry2 */
- $carry2 = ($s2 + (1 << 20)) >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- /** @var int $carry4 */
- $carry4 = ($s4 + (1 << 20)) >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- /** @var int $carry6 */
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry8 */
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry10 */
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
-
- /** @var int $carry1 */
- $carry1 = ($s1 + (1 << 20)) >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- /** @var int $carry3 */
- $carry3 = ($s3 + (1 << 20)) >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- /** @var int $carry5 */
- $carry5 = ($s5 + (1 << 20)) >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- /** @var int $carry7 */
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry9 */
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry11 */
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
-
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
- $s12 = 0;
-
- /** @var int $carry0 */
- $carry0 = $s0 >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- /** @var int $carry1 */
- $carry1 = $s1 >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- /** @var int $carry2 */
- $carry2 = $s2 >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- /** @var int $carry3 */
- $carry3 = $s3 >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- /** @var int $carry4 */
- $carry4 = $s4 >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- /** @var int $carry5 */
- $carry5 = $s5 >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- /** @var int $carry6 */
- $carry6 = $s6 >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry7 */
- $carry7 = $s7 >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry8 */
- $carry8 = $s8 >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry9 */
- $carry9 = $s9 >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry10 */
- $carry10 = $s10 >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- /** @var int $carry11 */
- $carry11 = $s11 >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
-
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
-
- /** @var int $carry0 */
- $carry0 = $s0 >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- /** @var int $carry1 */
- $carry1 = $s1 >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- /** @var int $carry2 */
- $carry2 = $s2 >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- /** @var int $carry3 */
- $carry3 = $s3 >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- /** @var int $carry4 */
- $carry4 = $s4 >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- /** @var int $carry5 */
- $carry5 = $s5 >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- /** @var int $carry6 */
- $carry6 = $s6 >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- /** @var int $carry7 */
- $carry7 = $s7 >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- /** @var int $carry8 */
- $carry8 = $s8 >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- /** @var int $carry9 */
- $carry9 = $s9 >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- /** @var int $carry10 */
- $carry10 = $s10 >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
-
- /**
- * @var array<int, int>
- */
- $arr = array(
- (int) ($s0 >> 0),
- (int) ($s0 >> 8),
- (int) (($s0 >> 16) | $s1 << 5),
- (int) ($s1 >> 3),
- (int) ($s1 >> 11),
- (int) (($s1 >> 19) | $s2 << 2),
- (int) ($s2 >> 6),
- (int) (($s2 >> 14) | $s3 << 7),
- (int) ($s3 >> 1),
- (int) ($s3 >> 9),
- (int) (($s3 >> 17) | $s4 << 4),
- (int) ($s4 >> 4),
- (int) ($s4 >> 12),
- (int) (($s4 >> 20) | $s5 << 1),
- (int) ($s5 >> 7),
- (int) (($s5 >> 15) | $s6 << 6),
- (int) ($s6 >> 2),
- (int) ($s6 >> 10),
- (int) (($s6 >> 18) | $s7 << 3),
- (int) ($s7 >> 5),
- (int) ($s7 >> 13),
- (int) ($s8 >> 0),
- (int) ($s8 >> 8),
- (int) (($s8 >> 16) | $s9 << 5),
- (int) ($s9 >> 3),
- (int) ($s9 >> 11),
- (int) (($s9 >> 19) | $s10 << 2),
- (int) ($s10 >> 6),
- (int) (($s10 >> 14) | $s11 << 7),
- (int) ($s11 >> 1),
- (int) ($s11 >> 9),
- (int) $s11 >> 17
- );
- return self::intArrayToString($arr);
- }
-
- /**
- * multiply by the order of the main subgroup l = 2^252+27742317777372353535851937790883648493
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
- */
- public static function ge_mul_l(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A)
- {
- /** @var array<int, int> $aslide */
- $aslide = array(
- 13, 0, 0, 0, 0, -1, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 0, -5, 0, 0, 0,
- 0, 0, 0, -3, 0, 0, 0, 0, -13, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 3, 0,
- 0, 0, 0, -13, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 0, 0,
- 0, 0, 11, 0, 0, 0, 0, -13, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, 0, 0, -1,
- 0, 0, 0, 0, 3, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0,
- 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 7, 0, 0, 0, 0, 5, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
- );
-
- /** @var array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Cached> $Ai size 8 */
- $Ai = array();
-
- # ge_p3_to_cached(&Ai[0], A);
- $Ai[0] = self::ge_p3_to_cached($A);
- # ge_p3_dbl(&t, A);
- $t = self::ge_p3_dbl($A);
- # ge_p1p1_to_p3(&A2, &t);
- $A2 = self::ge_p1p1_to_p3($t);
-
- for ($i = 1; $i < 8; ++$i) {
- # ge_add(&t, &A2, &Ai[0]);
- $t = self::ge_add($A2, $Ai[$i - 1]);
- # ge_p1p1_to_p3(&u, &t);
- $u = self::ge_p1p1_to_p3($t);
- # ge_p3_to_cached(&Ai[i], &u);
- $Ai[$i] = self::ge_p3_to_cached($u);
- }
-
- $r = self::ge_p3_0();
- for ($i = 252; $i >= 0; --$i) {
- $t = self::ge_p3_dbl($r);
- if ($aslide[$i] > 0) {
- # ge_p1p1_to_p3(&u, &t);
- $u = self::ge_p1p1_to_p3($t);
- # ge_add(&t, &u, &Ai[aslide[i] / 2]);
- $t = self::ge_add($u, $Ai[(int)($aslide[$i] / 2)]);
- } elseif ($aslide[$i] < 0) {
- # ge_p1p1_to_p3(&u, &t);
- $u = self::ge_p1p1_to_p3($t);
- # ge_sub(&t, &u, &Ai[(-aslide[i]) / 2]);
- $t = self::ge_sub($u, $Ai[(int)(-$aslide[$i] / 2)]);
- }
- }
-
- # ge_p1p1_to_p3(r, &t);
- return self::ge_p1p1_to_p3($t);
- }
-
- /**
- * @param string $a
- * @param string $b
- * @return string
- */
- public static function sc25519_mul($a, $b)
- {
- // int64_t a0 = 2097151 & load_3(a);
- // int64_t a1 = 2097151 & (load_4(a + 2) >> 5);
- // int64_t a2 = 2097151 & (load_3(a + 5) >> 2);
- // int64_t a3 = 2097151 & (load_4(a + 7) >> 7);
- // int64_t a4 = 2097151 & (load_4(a + 10) >> 4);
- // int64_t a5 = 2097151 & (load_3(a + 13) >> 1);
- // int64_t a6 = 2097151 & (load_4(a + 15) >> 6);
- // int64_t a7 = 2097151 & (load_3(a + 18) >> 3);
- // int64_t a8 = 2097151 & load_3(a + 21);
- // int64_t a9 = 2097151 & (load_4(a + 23) >> 5);
- // int64_t a10 = 2097151 & (load_3(a + 26) >> 2);
- // int64_t a11 = (load_4(a + 28) >> 7);
- $a0 = 2097151 & self::load_3(self::substr($a, 0, 3));
- $a1 = 2097151 & (self::load_4(self::substr($a, 2, 4)) >> 5);
- $a2 = 2097151 & (self::load_3(self::substr($a, 5, 3)) >> 2);
- $a3 = 2097151 & (self::load_4(self::substr($a, 7, 4)) >> 7);
- $a4 = 2097151 & (self::load_4(self::substr($a, 10, 4)) >> 4);
- $a5 = 2097151 & (self::load_3(self::substr($a, 13, 3)) >> 1);
- $a6 = 2097151 & (self::load_4(self::substr($a, 15, 4)) >> 6);
- $a7 = 2097151 & (self::load_3(self::substr($a, 18, 3)) >> 3);
- $a8 = 2097151 & self::load_3(self::substr($a, 21, 3));
- $a9 = 2097151 & (self::load_4(self::substr($a, 23, 4)) >> 5);
- $a10 = 2097151 & (self::load_3(self::substr($a, 26, 3)) >> 2);
- $a11 = (self::load_4(self::substr($a, 28, 4)) >> 7);
-
- // int64_t b0 = 2097151 & load_3(b);
- // int64_t b1 = 2097151 & (load_4(b + 2) >> 5);
- // int64_t b2 = 2097151 & (load_3(b + 5) >> 2);
- // int64_t b3 = 2097151 & (load_4(b + 7) >> 7);
- // int64_t b4 = 2097151 & (load_4(b + 10) >> 4);
- // int64_t b5 = 2097151 & (load_3(b + 13) >> 1);
- // int64_t b6 = 2097151 & (load_4(b + 15) >> 6);
- // int64_t b7 = 2097151 & (load_3(b + 18) >> 3);
- // int64_t b8 = 2097151 & load_3(b + 21);
- // int64_t b9 = 2097151 & (load_4(b + 23) >> 5);
- // int64_t b10 = 2097151 & (load_3(b + 26) >> 2);
- // int64_t b11 = (load_4(b + 28) >> 7);
- $b0 = 2097151 & self::load_3(self::substr($b, 0, 3));
- $b1 = 2097151 & (self::load_4(self::substr($b, 2, 4)) >> 5);
- $b2 = 2097151 & (self::load_3(self::substr($b, 5, 3)) >> 2);
- $b3 = 2097151 & (self::load_4(self::substr($b, 7, 4)) >> 7);
- $b4 = 2097151 & (self::load_4(self::substr($b, 10, 4)) >> 4);
- $b5 = 2097151 & (self::load_3(self::substr($b, 13, 3)) >> 1);
- $b6 = 2097151 & (self::load_4(self::substr($b, 15, 4)) >> 6);
- $b7 = 2097151 & (self::load_3(self::substr($b, 18, 3)) >> 3);
- $b8 = 2097151 & self::load_3(self::substr($b, 21, 3));
- $b9 = 2097151 & (self::load_4(self::substr($b, 23, 4)) >> 5);
- $b10 = 2097151 & (self::load_3(self::substr($b, 26, 3)) >> 2);
- $b11 = (self::load_4(self::substr($b, 28, 4)) >> 7);
-
- // s0 = a0 * b0;
- // s1 = a0 * b1 + a1 * b0;
- // s2 = a0 * b2 + a1 * b1 + a2 * b0;
- // s3 = a0 * b3 + a1 * b2 + a2 * b1 + a3 * b0;
- // s4 = a0 * b4 + a1 * b3 + a2 * b2 + a3 * b1 + a4 * b0;
- // s5 = a0 * b5 + a1 * b4 + a2 * b3 + a3 * b2 + a4 * b1 + a5 * b0;
- // s6 = a0 * b6 + a1 * b5 + a2 * b4 + a3 * b3 + a4 * b2 + a5 * b1 + a6 * b0;
- // s7 = a0 * b7 + a1 * b6 + a2 * b5 + a3 * b4 + a4 * b3 + a5 * b2 +
- // a6 * b1 + a7 * b0;
- // s8 = a0 * b8 + a1 * b7 + a2 * b6 + a3 * b5 + a4 * b4 + a5 * b3 +
- // a6 * b2 + a7 * b1 + a8 * b0;
- // s9 = a0 * b9 + a1 * b8 + a2 * b7 + a3 * b6 + a4 * b5 + a5 * b4 +
- // a6 * b3 + a7 * b2 + a8 * b1 + a9 * b0;
- // s10 = a0 * b10 + a1 * b9 + a2 * b8 + a3 * b7 + a4 * b6 + a5 * b5 +
- // a6 * b4 + a7 * b3 + a8 * b2 + a9 * b1 + a10 * b0;
- // s11 = a0 * b11 + a1 * b10 + a2 * b9 + a3 * b8 + a4 * b7 + a5 * b6 +
- // a6 * b5 + a7 * b4 + a8 * b3 + a9 * b2 + a10 * b1 + a11 * b0;
- // s12 = a1 * b11 + a2 * b10 + a3 * b9 + a4 * b8 + a5 * b7 + a6 * b6 +
- // a7 * b5 + a8 * b4 + a9 * b3 + a10 * b2 + a11 * b1;
- // s13 = a2 * b11 + a3 * b10 + a4 * b9 + a5 * b8 + a6 * b7 + a7 * b6 +
- // a8 * b5 + a9 * b4 + a10 * b3 + a11 * b2;
- // s14 = a3 * b11 + a4 * b10 + a5 * b9 + a6 * b8 + a7 * b7 + a8 * b6 +
- // a9 * b5 + a10 * b4 + a11 * b3;
- // s15 = a4 * b11 + a5 * b10 + a6 * b9 + a7 * b8 + a8 * b7 + a9 * b6 +
- // a10 * b5 + a11 * b4;
- // s16 =
- // a5 * b11 + a6 * b10 + a7 * b9 + a8 * b8 + a9 * b7 + a10 * b6 + a11 * b5;
- // s17 = a6 * b11 + a7 * b10 + a8 * b9 + a9 * b8 + a10 * b7 + a11 * b6;
- // s18 = a7 * b11 + a8 * b10 + a9 * b9 + a10 * b8 + a11 * b7;
- // s19 = a8 * b11 + a9 * b10 + a10 * b9 + a11 * b8;
- // s20 = a9 * b11 + a10 * b10 + a11 * b9;
- // s21 = a10 * b11 + a11 * b10;
- // s22 = a11 * b11;
- // s23 = 0;
- $s0 = self::mul($a0, $b0, 22);
- $s1 = self::mul($a0, $b1, 22) + self::mul($a1, $b0, 22);
- $s2 = self::mul($a0, $b2, 22) + self::mul($a1, $b1, 22) + self::mul($a2, $b0, 22);
- $s3 = self::mul($a0, $b3, 22) + self::mul($a1, $b2, 22) + self::mul($a2, $b1, 22) + self::mul($a3, $b0, 22);
- $s4 = self::mul($a0, $b4, 22) + self::mul($a1, $b3, 22) + self::mul($a2, $b2, 22) + self::mul($a3, $b1, 22) +
- self::mul($a4, $b0, 22);
- $s5 = self::mul($a0, $b5, 22) + self::mul($a1, $b4, 22) + self::mul($a2, $b3, 22) + self::mul($a3, $b2, 22) +
- self::mul($a4, $b1, 22) + self::mul($a5, $b0, 22);
- $s6 = self::mul($a0, $b6, 22) + self::mul($a1, $b5, 22) + self::mul($a2, $b4, 22) + self::mul($a3, $b3, 22) +
- self::mul($a4, $b2, 22) + self::mul($a5, $b1, 22) + self::mul($a6, $b0, 22);
- $s7 = self::mul($a0, $b7, 22) + self::mul($a1, $b6, 22) + self::mul($a2, $b5, 22) + self::mul($a3, $b4, 22) +
- self::mul($a4, $b3, 22) + self::mul($a5, $b2, 22) + self::mul($a6, $b1, 22) + self::mul($a7, $b0, 22);
- $s8 = self::mul($a0, $b8, 22) + self::mul($a1, $b7, 22) + self::mul($a2, $b6, 22) + self::mul($a3, $b5, 22) +
- self::mul($a4, $b4, 22) + self::mul($a5, $b3, 22) + self::mul($a6, $b2, 22) + self::mul($a7, $b1, 22) +
- self::mul($a8, $b0, 22);
- $s9 = self::mul($a0, $b9, 22) + self::mul($a1, $b8, 22) + self::mul($a2, $b7, 22) + self::mul($a3, $b6, 22) +
- self::mul($a4, $b5, 22) + self::mul($a5, $b4, 22) + self::mul($a6, $b3, 22) + self::mul($a7, $b2, 22) +
- self::mul($a8, $b1, 22) + self::mul($a9, $b0, 22);
- $s10 = self::mul($a0, $b10, 22) + self::mul($a1, $b9, 22) + self::mul($a2, $b8, 22) + self::mul($a3, $b7, 22) +
- self::mul($a4, $b6, 22) + self::mul($a5, $b5, 22) + self::mul($a6, $b4, 22) + self::mul($a7, $b3, 22) +
- self::mul($a8, $b2, 22) + self::mul($a9, $b1, 22) + self::mul($a10, $b0, 22);
- $s11 = self::mul($a0, $b11, 22) + self::mul($a1, $b10, 22) + self::mul($a2, $b9, 22) + self::mul($a3, $b8, 22) +
- self::mul($a4, $b7, 22) + self::mul($a5, $b6, 22) + self::mul($a6, $b5, 22) + self::mul($a7, $b4, 22) +
- self::mul($a8, $b3, 22) + self::mul($a9, $b2, 22) + self::mul($a10, $b1, 22) + self::mul($a11, $b0, 22);
- $s12 = self::mul($a1, $b11, 22) + self::mul($a2, $b10, 22) + self::mul($a3, $b9, 22) + self::mul($a4, $b8, 22) +
- self::mul($a5, $b7, 22) + self::mul($a6, $b6, 22) + self::mul($a7, $b5, 22) + self::mul($a8, $b4, 22) +
- self::mul($a9, $b3, 22) + self::mul($a10, $b2, 22) + self::mul($a11, $b1, 22);
- $s13 = self::mul($a2, $b11, 22) + self::mul($a3, $b10, 22) + self::mul($a4, $b9, 22) + self::mul($a5, $b8, 22) +
- self::mul($a6, $b7, 22) + self::mul($a7, $b6, 22) + self::mul($a8, $b5, 22) + self::mul($a9, $b4, 22) +
- self::mul($a10, $b3, 22) + self::mul($a11, $b2, 22);
- $s14 = self::mul($a3, $b11, 22) + self::mul($a4, $b10, 22) + self::mul($a5, $b9, 22) + self::mul($a6, $b8, 22) +
- self::mul($a7, $b7, 22) + self::mul($a8, $b6, 22) + self::mul($a9, $b5, 22) + self::mul($a10, $b4, 22) +
- self::mul($a11, $b3, 22);
- $s15 = self::mul($a4, $b11, 22) + self::mul($a5, $b10, 22) + self::mul($a6, $b9, 22) + self::mul($a7, $b8, 22) +
- self::mul($a8, $b7, 22) + self::mul($a9, $b6, 22) + self::mul($a10, $b5, 22) + self::mul($a11, $b4, 22);
- $s16 =
- self::mul($a5, $b11, 22) + self::mul($a6, $b10, 22) + self::mul($a7, $b9, 22) + self::mul($a8, $b8, 22) +
- self::mul($a9, $b7, 22) + self::mul($a10, $b6, 22) + self::mul($a11, $b5, 22);
- $s17 = self::mul($a6, $b11, 22) + self::mul($a7, $b10, 22) + self::mul($a8, $b9, 22) + self::mul($a9, $b8, 22) +
- self::mul($a10, $b7, 22) + self::mul($a11, $b6, 22);
- $s18 = self::mul($a7, $b11, 22) + self::mul($a8, $b10, 22) + self::mul($a9, $b9, 22) + self::mul($a10, $b8, 22)
- + self::mul($a11, $b7, 22);
- $s19 = self::mul($a8, $b11, 22) + self::mul($a9, $b10, 22) + self::mul($a10, $b9, 22) +
- self::mul($a11, $b8, 22);
- $s20 = self::mul($a9, $b11, 22) + self::mul($a10, $b10, 22) + self::mul($a11, $b9, 22);
- $s21 = self::mul($a10, $b11, 22) + self::mul($a11, $b10, 22);
- $s22 = self::mul($a11, $b11, 22);
- $s23 = 0;
-
- // carry0 = (s0 + (int64_t) (1L << 20)) >> 21;
- // s1 += carry0;
- // s0 -= carry0 * ((uint64_t) 1L << 21);
- $carry0 = ($s0 + (1 << 20)) >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- // carry2 = (s2 + (int64_t) (1L << 20)) >> 21;
- // s3 += carry2;
- // s2 -= carry2 * ((uint64_t) 1L << 21);
- $carry2 = ($s2 + (1 << 20)) >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- // carry4 = (s4 + (int64_t) (1L << 20)) >> 21;
- // s5 += carry4;
- // s4 -= carry4 * ((uint64_t) 1L << 21);
- $carry4 = ($s4 + (1 << 20)) >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- // carry6 = (s6 + (int64_t) (1L << 20)) >> 21;
- // s7 += carry6;
- // s6 -= carry6 * ((uint64_t) 1L << 21);
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- // carry8 = (s8 + (int64_t) (1L << 20)) >> 21;
- // s9 += carry8;
- // s8 -= carry8 * ((uint64_t) 1L << 21);
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- // carry10 = (s10 + (int64_t) (1L << 20)) >> 21;
- // s11 += carry10;
- // s10 -= carry10 * ((uint64_t) 1L << 21);
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- // carry12 = (s12 + (int64_t) (1L << 20)) >> 21;
- // s13 += carry12;
- // s12 -= carry12 * ((uint64_t) 1L << 21);
- $carry12 = ($s12 + (1 << 20)) >> 21;
- $s13 += $carry12;
- $s12 -= $carry12 << 21;
- // carry14 = (s14 + (int64_t) (1L << 20)) >> 21;
- // s15 += carry14;
- // s14 -= carry14 * ((uint64_t) 1L << 21);
- $carry14 = ($s14 + (1 << 20)) >> 21;
- $s15 += $carry14;
- $s14 -= $carry14 << 21;
- // carry16 = (s16 + (int64_t) (1L << 20)) >> 21;
- // s17 += carry16;
- // s16 -= carry16 * ((uint64_t) 1L << 21);
- $carry16 = ($s16 + (1 << 20)) >> 21;
- $s17 += $carry16;
- $s16 -= $carry16 << 21;
- // carry18 = (s18 + (int64_t) (1L << 20)) >> 21;
- // s19 += carry18;
- // s18 -= carry18 * ((uint64_t) 1L << 21);
- $carry18 = ($s18 + (1 << 20)) >> 21;
- $s19 += $carry18;
- $s18 -= $carry18 << 21;
- // carry20 = (s20 + (int64_t) (1L << 20)) >> 21;
- // s21 += carry20;
- // s20 -= carry20 * ((uint64_t) 1L << 21);
- $carry20 = ($s20 + (1 << 20)) >> 21;
- $s21 += $carry20;
- $s20 -= $carry20 << 21;
- // carry22 = (s22 + (int64_t) (1L << 20)) >> 21;
- // s23 += carry22;
- // s22 -= carry22 * ((uint64_t) 1L << 21);
- $carry22 = ($s22 + (1 << 20)) >> 21;
- $s23 += $carry22;
- $s22 -= $carry22 << 21;
-
- // carry1 = (s1 + (int64_t) (1L << 20)) >> 21;
- // s2 += carry1;
- // s1 -= carry1 * ((uint64_t) 1L << 21);
- $carry1 = ($s1 + (1 << 20)) >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- // carry3 = (s3 + (int64_t) (1L << 20)) >> 21;
- // s4 += carry3;
- // s3 -= carry3 * ((uint64_t) 1L << 21);
- $carry3 = ($s3 + (1 << 20)) >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- // carry5 = (s5 + (int64_t) (1L << 20)) >> 21;
- // s6 += carry5;
- // s5 -= carry5 * ((uint64_t) 1L << 21);
- $carry5 = ($s5 + (1 << 20)) >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- // carry7 = (s7 + (int64_t) (1L << 20)) >> 21;
- // s8 += carry7;
- // s7 -= carry7 * ((uint64_t) 1L << 21);
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- // carry9 = (s9 + (int64_t) (1L << 20)) >> 21;
- // s10 += carry9;
- // s9 -= carry9 * ((uint64_t) 1L << 21);
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- // carry11 = (s11 + (int64_t) (1L << 20)) >> 21;
- // s12 += carry11;
- // s11 -= carry11 * ((uint64_t) 1L << 21);
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
- // carry13 = (s13 + (int64_t) (1L << 20)) >> 21;
- // s14 += carry13;
- // s13 -= carry13 * ((uint64_t) 1L << 21);
- $carry13 = ($s13 + (1 << 20)) >> 21;
- $s14 += $carry13;
- $s13 -= $carry13 << 21;
- // carry15 = (s15 + (int64_t) (1L << 20)) >> 21;
- // s16 += carry15;
- // s15 -= carry15 * ((uint64_t) 1L << 21);
- $carry15 = ($s15 + (1 << 20)) >> 21;
- $s16 += $carry15;
- $s15 -= $carry15 << 21;
- // carry17 = (s17 + (int64_t) (1L << 20)) >> 21;
- // s18 += carry17;
- // s17 -= carry17 * ((uint64_t) 1L << 21);
- $carry17 = ($s17 + (1 << 20)) >> 21;
- $s18 += $carry17;
- $s17 -= $carry17 << 21;
- // carry19 = (s19 + (int64_t) (1L << 20)) >> 21;
- // s20 += carry19;
- // s19 -= carry19 * ((uint64_t) 1L << 21);
- $carry19 = ($s19 + (1 << 20)) >> 21;
- $s20 += $carry19;
- $s19 -= $carry19 << 21;
- // carry21 = (s21 + (int64_t) (1L << 20)) >> 21;
- // s22 += carry21;
- // s21 -= carry21 * ((uint64_t) 1L << 21);
- $carry21 = ($s21 + (1 << 20)) >> 21;
- $s22 += $carry21;
- $s21 -= $carry21 << 21;
-
- // s11 += s23 * 666643;
- // s12 += s23 * 470296;
- // s13 += s23 * 654183;
- // s14 -= s23 * 997805;
- // s15 += s23 * 136657;
- // s16 -= s23 * 683901;
- $s11 += self::mul($s23, 666643, 20);
- $s12 += self::mul($s23, 470296, 19);
- $s13 += self::mul($s23, 654183, 20);
- $s14 -= self::mul($s23, 997805, 20);
- $s15 += self::mul($s23, 136657, 18);
- $s16 -= self::mul($s23, 683901, 20);
-
- // s10 += s22 * 666643;
- // s11 += s22 * 470296;
- // s12 += s22 * 654183;
- // s13 -= s22 * 997805;
- // s14 += s22 * 136657;
- // s15 -= s22 * 683901;
- $s10 += self::mul($s22, 666643, 20);
- $s11 += self::mul($s22, 470296, 19);
- $s12 += self::mul($s22, 654183, 20);
- $s13 -= self::mul($s22, 997805, 20);
- $s14 += self::mul($s22, 136657, 18);
- $s15 -= self::mul($s22, 683901, 20);
-
- // s9 += s21 * 666643;
- // s10 += s21 * 470296;
- // s11 += s21 * 654183;
- // s12 -= s21 * 997805;
- // s13 += s21 * 136657;
- // s14 -= s21 * 683901;
- $s9 += self::mul($s21, 666643, 20);
- $s10 += self::mul($s21, 470296, 19);
- $s11 += self::mul($s21, 654183, 20);
- $s12 -= self::mul($s21, 997805, 20);
- $s13 += self::mul($s21, 136657, 18);
- $s14 -= self::mul($s21, 683901, 20);
-
- // s8 += s20 * 666643;
- // s9 += s20 * 470296;
- // s10 += s20 * 654183;
- // s11 -= s20 * 997805;
- // s12 += s20 * 136657;
- // s13 -= s20 * 683901;
- $s8 += self::mul($s20, 666643, 20);
- $s9 += self::mul($s20, 470296, 19);
- $s10 += self::mul($s20, 654183, 20);
- $s11 -= self::mul($s20, 997805, 20);
- $s12 += self::mul($s20, 136657, 18);
- $s13 -= self::mul($s20, 683901, 20);
-
- // s7 += s19 * 666643;
- // s8 += s19 * 470296;
- // s9 += s19 * 654183;
- // s10 -= s19 * 997805;
- // s11 += s19 * 136657;
- // s12 -= s19 * 683901;
- $s7 += self::mul($s19, 666643, 20);
- $s8 += self::mul($s19, 470296, 19);
- $s9 += self::mul($s19, 654183, 20);
- $s10 -= self::mul($s19, 997805, 20);
- $s11 += self::mul($s19, 136657, 18);
- $s12 -= self::mul($s19, 683901, 20);
-
- // s6 += s18 * 666643;
- // s7 += s18 * 470296;
- // s8 += s18 * 654183;
- // s9 -= s18 * 997805;
- // s10 += s18 * 136657;
- // s11 -= s18 * 683901;
- $s6 += self::mul($s18, 666643, 20);
- $s7 += self::mul($s18, 470296, 19);
- $s8 += self::mul($s18, 654183, 20);
- $s9 -= self::mul($s18, 997805, 20);
- $s10 += self::mul($s18, 136657, 18);
- $s11 -= self::mul($s18, 683901, 20);
-
- // carry6 = (s6 + (int64_t) (1L << 20)) >> 21;
- // s7 += carry6;
- // s6 -= carry6 * ((uint64_t) 1L << 21);
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- // carry8 = (s8 + (int64_t) (1L << 20)) >> 21;
- // s9 += carry8;
- // s8 -= carry8 * ((uint64_t) 1L << 21);
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- // carry10 = (s10 + (int64_t) (1L << 20)) >> 21;
- // s11 += carry10;
- // s10 -= carry10 * ((uint64_t) 1L << 21);
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- // carry12 = (s12 + (int64_t) (1L << 20)) >> 21;
- // s13 += carry12;
- // s12 -= carry12 * ((uint64_t) 1L << 21);
- $carry12 = ($s12 + (1 << 20)) >> 21;
- $s13 += $carry12;
- $s12 -= $carry12 << 21;
- // carry14 = (s14 + (int64_t) (1L << 20)) >> 21;
- // s15 += carry14;
- // s14 -= carry14 * ((uint64_t) 1L << 21);
- $carry14 = ($s14 + (1 << 20)) >> 21;
- $s15 += $carry14;
- $s14 -= $carry14 << 21;
- // carry16 = (s16 + (int64_t) (1L << 20)) >> 21;
- // s17 += carry16;
- // s16 -= carry16 * ((uint64_t) 1L << 21);
- $carry16 = ($s16 + (1 << 20)) >> 21;
- $s17 += $carry16;
- $s16 -= $carry16 << 21;
-
- // carry7 = (s7 + (int64_t) (1L << 20)) >> 21;
- // s8 += carry7;
- // s7 -= carry7 * ((uint64_t) 1L << 21);
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- // carry9 = (s9 + (int64_t) (1L << 20)) >> 21;
- // s10 += carry9;
- // s9 -= carry9 * ((uint64_t) 1L << 21);
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- // carry11 = (s11 + (int64_t) (1L << 20)) >> 21;
- // s12 += carry11;
- // s11 -= carry11 * ((uint64_t) 1L << 21);
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
- // carry13 = (s13 + (int64_t) (1L << 20)) >> 21;
- // s14 += carry13;
- // s13 -= carry13 * ((uint64_t) 1L << 21);
- $carry13 = ($s13 + (1 << 20)) >> 21;
- $s14 += $carry13;
- $s13 -= $carry13 << 21;
- // carry15 = (s15 + (int64_t) (1L << 20)) >> 21;
- // s16 += carry15;
- // s15 -= carry15 * ((uint64_t) 1L << 21);
- $carry15 = ($s15 + (1 << 20)) >> 21;
- $s16 += $carry15;
- $s15 -= $carry15 << 21;
-
- // s5 += s17 * 666643;
- // s6 += s17 * 470296;
- // s7 += s17 * 654183;
- // s8 -= s17 * 997805;
- // s9 += s17 * 136657;
- // s10 -= s17 * 683901;
- $s5 += self::mul($s17, 666643, 20);
- $s6 += self::mul($s17, 470296, 19);
- $s7 += self::mul($s17, 654183, 20);
- $s8 -= self::mul($s17, 997805, 20);
- $s9 += self::mul($s17, 136657, 18);
- $s10 -= self::mul($s17, 683901, 20);
-
- // s4 += s16 * 666643;
- // s5 += s16 * 470296;
- // s6 += s16 * 654183;
- // s7 -= s16 * 997805;
- // s8 += s16 * 136657;
- // s9 -= s16 * 683901;
- $s4 += self::mul($s16, 666643, 20);
- $s5 += self::mul($s16, 470296, 19);
- $s6 += self::mul($s16, 654183, 20);
- $s7 -= self::mul($s16, 997805, 20);
- $s8 += self::mul($s16, 136657, 18);
- $s9 -= self::mul($s16, 683901, 20);
-
- // s3 += s15 * 666643;
- // s4 += s15 * 470296;
- // s5 += s15 * 654183;
- // s6 -= s15 * 997805;
- // s7 += s15 * 136657;
- // s8 -= s15 * 683901;
- $s3 += self::mul($s15, 666643, 20);
- $s4 += self::mul($s15, 470296, 19);
- $s5 += self::mul($s15, 654183, 20);
- $s6 -= self::mul($s15, 997805, 20);
- $s7 += self::mul($s15, 136657, 18);
- $s8 -= self::mul($s15, 683901, 20);
-
- // s2 += s14 * 666643;
- // s3 += s14 * 470296;
- // s4 += s14 * 654183;
- // s5 -= s14 * 997805;
- // s6 += s14 * 136657;
- // s7 -= s14 * 683901;
- $s2 += self::mul($s14, 666643, 20);
- $s3 += self::mul($s14, 470296, 19);
- $s4 += self::mul($s14, 654183, 20);
- $s5 -= self::mul($s14, 997805, 20);
- $s6 += self::mul($s14, 136657, 18);
- $s7 -= self::mul($s14, 683901, 20);
-
- // s1 += s13 * 666643;
- // s2 += s13 * 470296;
- // s3 += s13 * 654183;
- // s4 -= s13 * 997805;
- // s5 += s13 * 136657;
- // s6 -= s13 * 683901;
- $s1 += self::mul($s13, 666643, 20);
- $s2 += self::mul($s13, 470296, 19);
- $s3 += self::mul($s13, 654183, 20);
- $s4 -= self::mul($s13, 997805, 20);
- $s5 += self::mul($s13, 136657, 18);
- $s6 -= self::mul($s13, 683901, 20);
-
- // s0 += s12 * 666643;
- // s1 += s12 * 470296;
- // s2 += s12 * 654183;
- // s3 -= s12 * 997805;
- // s4 += s12 * 136657;
- // s5 -= s12 * 683901;
- // s12 = 0;
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
- $s12 = 0;
-
- // carry0 = (s0 + (int64_t) (1L << 20)) >> 21;
- // s1 += carry0;
- // s0 -= carry0 * ((uint64_t) 1L << 21);
- $carry0 = ($s0 + (1 << 20)) >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- // carry2 = (s2 + (int64_t) (1L << 20)) >> 21;
- // s3 += carry2;
- // s2 -= carry2 * ((uint64_t) 1L << 21);
- $carry2 = ($s2 + (1 << 20)) >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- // carry4 = (s4 + (int64_t) (1L << 20)) >> 21;
- // s5 += carry4;
- // s4 -= carry4 * ((uint64_t) 1L << 21);
- $carry4 = ($s4 + (1 << 20)) >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- // carry6 = (s6 + (int64_t) (1L << 20)) >> 21;
- // s7 += carry6;
- // s6 -= carry6 * ((uint64_t) 1L << 21);
- $carry6 = ($s6 + (1 << 20)) >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- // carry8 = (s8 + (int64_t) (1L << 20)) >> 21;
- // s9 += carry8;
- // s8 -= carry8 * ((uint64_t) 1L << 21);
- $carry8 = ($s8 + (1 << 20)) >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- // carry10 = (s10 + (int64_t) (1L << 20)) >> 21;
- // s11 += carry10;
- // s10 -= carry10 * ((uint64_t) 1L << 21);
- $carry10 = ($s10 + (1 << 20)) >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
-
- // carry1 = (s1 + (int64_t) (1L << 20)) >> 21;
- // s2 += carry1;
- // s1 -= carry1 * ((uint64_t) 1L << 21);
- $carry1 = ($s1 + (1 << 20)) >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- // carry3 = (s3 + (int64_t) (1L << 20)) >> 21;
- // s4 += carry3;
- // s3 -= carry3 * ((uint64_t) 1L << 21);
- $carry3 = ($s3 + (1 << 20)) >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- // carry5 = (s5 + (int64_t) (1L << 20)) >> 21;
- // s6 += carry5;
- // s5 -= carry5 * ((uint64_t) 1L << 21);
- $carry5 = ($s5 + (1 << 20)) >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- // carry7 = (s7 + (int64_t) (1L << 20)) >> 21;
- // s8 += carry7;
- // s7 -= carry7 * ((uint64_t) 1L << 21);
- $carry7 = ($s7 + (1 << 20)) >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- // carry9 = (s9 + (int64_t) (1L << 20)) >> 21;
- // s10 += carry9;
- // s9 -= carry9 * ((uint64_t) 1L << 21);
- $carry9 = ($s9 + (1 << 20)) >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- // carry11 = (s11 + (int64_t) (1L << 20)) >> 21;
- // s12 += carry11;
- // s11 -= carry11 * ((uint64_t) 1L << 21);
- $carry11 = ($s11 + (1 << 20)) >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
-
- // s0 += s12 * 666643;
- // s1 += s12 * 470296;
- // s2 += s12 * 654183;
- // s3 -= s12 * 997805;
- // s4 += s12 * 136657;
- // s5 -= s12 * 683901;
- // s12 = 0;
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
- $s12 = 0;
-
- // carry0 = s0 >> 21;
- // s1 += carry0;
- // s0 -= carry0 * ((uint64_t) 1L << 21);
- $carry0 = $s0 >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- // carry1 = s1 >> 21;
- // s2 += carry1;
- // s1 -= carry1 * ((uint64_t) 1L << 21);
- $carry1 = $s1 >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- // carry2 = s2 >> 21;
- // s3 += carry2;
- // s2 -= carry2 * ((uint64_t) 1L << 21);
- $carry2 = $s2 >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- // carry3 = s3 >> 21;
- // s4 += carry3;
- // s3 -= carry3 * ((uint64_t) 1L << 21);
- $carry3 = $s3 >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- // carry4 = s4 >> 21;
- // s5 += carry4;
- // s4 -= carry4 * ((uint64_t) 1L << 21);
- $carry4 = $s4 >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- // carry5 = s5 >> 21;
- // s6 += carry5;
- // s5 -= carry5 * ((uint64_t) 1L << 21);
- $carry5 = $s5 >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- // carry6 = s6 >> 21;
- // s7 += carry6;
- // s6 -= carry6 * ((uint64_t) 1L << 21);
- $carry6 = $s6 >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- // carry7 = s7 >> 21;
- // s8 += carry7;
- // s7 -= carry7 * ((uint64_t) 1L << 21);
- $carry7 = $s7 >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- // carry8 = s8 >> 21;
- // s9 += carry8;
- // s8 -= carry8 * ((uint64_t) 1L << 21);
- $carry8 = $s8 >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- // carry9 = s9 >> 21;
- // s10 += carry9;
- // s9 -= carry9 * ((uint64_t) 1L << 21);
- $carry9 = $s9 >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- // carry10 = s10 >> 21;
- // s11 += carry10;
- // s10 -= carry10 * ((uint64_t) 1L << 21);
- $carry10 = $s10 >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
- // carry11 = s11 >> 21;
- // s12 += carry11;
- // s11 -= carry11 * ((uint64_t) 1L << 21);
- $carry11 = $s11 >> 21;
- $s12 += $carry11;
- $s11 -= $carry11 << 21;
-
- // s0 += s12 * 666643;
- // s1 += s12 * 470296;
- // s2 += s12 * 654183;
- // s3 -= s12 * 997805;
- // s4 += s12 * 136657;
- // s5 -= s12 * 683901;
- $s0 += self::mul($s12, 666643, 20);
- $s1 += self::mul($s12, 470296, 19);
- $s2 += self::mul($s12, 654183, 20);
- $s3 -= self::mul($s12, 997805, 20);
- $s4 += self::mul($s12, 136657, 18);
- $s5 -= self::mul($s12, 683901, 20);
-
- // carry0 = s0 >> 21;
- // s1 += carry0;
- // s0 -= carry0 * ((uint64_t) 1L << 21);
- $carry0 = $s0 >> 21;
- $s1 += $carry0;
- $s0 -= $carry0 << 21;
- // carry1 = s1 >> 21;
- // s2 += carry1;
- // s1 -= carry1 * ((uint64_t) 1L << 21);
- $carry1 = $s1 >> 21;
- $s2 += $carry1;
- $s1 -= $carry1 << 21;
- // carry2 = s2 >> 21;
- // s3 += carry2;
- // s2 -= carry2 * ((uint64_t) 1L << 21);
- $carry2 = $s2 >> 21;
- $s3 += $carry2;
- $s2 -= $carry2 << 21;
- // carry3 = s3 >> 21;
- // s4 += carry3;
- // s3 -= carry3 * ((uint64_t) 1L << 21);
- $carry3 = $s3 >> 21;
- $s4 += $carry3;
- $s3 -= $carry3 << 21;
- // carry4 = s4 >> 21;
- // s5 += carry4;
- // s4 -= carry4 * ((uint64_t) 1L << 21);
- $carry4 = $s4 >> 21;
- $s5 += $carry4;
- $s4 -= $carry4 << 21;
- // carry5 = s5 >> 21;
- // s6 += carry5;
- // s5 -= carry5 * ((uint64_t) 1L << 21);
- $carry5 = $s5 >> 21;
- $s6 += $carry5;
- $s5 -= $carry5 << 21;
- // carry6 = s6 >> 21;
- // s7 += carry6;
- // s6 -= carry6 * ((uint64_t) 1L << 21);
- $carry6 = $s6 >> 21;
- $s7 += $carry6;
- $s6 -= $carry6 << 21;
- // carry7 = s7 >> 21;
- // s8 += carry7;
- // s7 -= carry7 * ((uint64_t) 1L << 21);
- $carry7 = $s7 >> 21;
- $s8 += $carry7;
- $s7 -= $carry7 << 21;
- // carry8 = s8 >> 21;
- // s9 += carry8;
- // s8 -= carry8 * ((uint64_t) 1L << 21);
- $carry8 = $s8 >> 21;
- $s9 += $carry8;
- $s8 -= $carry8 << 21;
- // carry9 = s9 >> 21;
- // s10 += carry9;
- // s9 -= carry9 * ((uint64_t) 1L << 21);
- $carry9 = $s9 >> 21;
- $s10 += $carry9;
- $s9 -= $carry9 << 21;
- // carry10 = s10 >> 21;
- // s11 += carry10;
- // s10 -= carry10 * ((uint64_t) 1L << 21);
- $carry10 = $s10 >> 21;
- $s11 += $carry10;
- $s10 -= $carry10 << 21;
-
- $s = array_fill(0, 32, 0);
- // s[0] = s0 >> 0;
- $s[0] = $s0 >> 0;
- // s[1] = s0 >> 8;
- $s[1] = $s0 >> 8;
- // s[2] = (s0 >> 16) | (s1 * ((uint64_t) 1 << 5));
- $s[2] = ($s0 >> 16) | ($s1 << 5);
- // s[3] = s1 >> 3;
- $s[3] = $s1 >> 3;
- // s[4] = s1 >> 11;
- $s[4] = $s1 >> 11;
- // s[5] = (s1 >> 19) | (s2 * ((uint64_t) 1 << 2));
- $s[5] = ($s1 >> 19) | ($s2 << 2);
- // s[6] = s2 >> 6;
- $s[6] = $s2 >> 6;
- // s[7] = (s2 >> 14) | (s3 * ((uint64_t) 1 << 7));
- $s[7] = ($s2 >> 14) | ($s3 << 7);
- // s[8] = s3 >> 1;
- $s[8] = $s3 >> 1;
- // s[9] = s3 >> 9;
- $s[9] = $s3 >> 9;
- // s[10] = (s3 >> 17) | (s4 * ((uint64_t) 1 << 4));
- $s[10] = ($s3 >> 17) | ($s4 << 4);
- // s[11] = s4 >> 4;
- $s[11] = $s4 >> 4;
- // s[12] = s4 >> 12;
- $s[12] = $s4 >> 12;
- // s[13] = (s4 >> 20) | (s5 * ((uint64_t) 1 << 1));
- $s[13] = ($s4 >> 20) | ($s5 << 1);
- // s[14] = s5 >> 7;
- $s[14] = $s5 >> 7;
- // s[15] = (s5 >> 15) | (s6 * ((uint64_t) 1 << 6));
- $s[15] = ($s5 >> 15) | ($s6 << 6);
- // s[16] = s6 >> 2;
- $s[16] = $s6 >> 2;
- // s[17] = s6 >> 10;
- $s[17] = $s6 >> 10;
- // s[18] = (s6 >> 18) | (s7 * ((uint64_t) 1 << 3));
- $s[18] = ($s6 >> 18) | ($s7 << 3);
- // s[19] = s7 >> 5;
- $s[19] = $s7 >> 5;
- // s[20] = s7 >> 13;
- $s[20] = $s7 >> 13;
- // s[21] = s8 >> 0;
- $s[21] = $s8 >> 0;
- // s[22] = s8 >> 8;
- $s[22] = $s8 >> 8;
- // s[23] = (s8 >> 16) | (s9 * ((uint64_t) 1 << 5));
- $s[23] = ($s8 >> 16) | ($s9 << 5);
- // s[24] = s9 >> 3;
- $s[24] = $s9 >> 3;
- // s[25] = s9 >> 11;
- $s[25] = $s9 >> 11;
- // s[26] = (s9 >> 19) | (s10 * ((uint64_t) 1 << 2));
- $s[26] = ($s9 >> 19) | ($s10 << 2);
- // s[27] = s10 >> 6;
- $s[27] = $s10 >> 6;
- // s[28] = (s10 >> 14) | (s11 * ((uint64_t) 1 << 7));
- $s[28] = ($s10 >> 14) | ($s11 << 7);
- // s[29] = s11 >> 1;
- $s[29] = $s11 >> 1;
- // s[30] = s11 >> 9;
- $s[30] = $s11 >> 9;
- // s[31] = s11 >> 17;
- $s[31] = $s11 >> 17;
- return self::intArrayToString($s);
- }
-
- /**
- * @param string $s
- * @return string
- */
- public static function sc25519_sq($s)
- {
- return self::sc25519_mul($s, $s);
- }
-
- /**
- * @param string $s
- * @param int $n
- * @param string $a
- * @return string
- */
- public static function sc25519_sqmul($s, $n, $a)
- {
- for ($i = 0; $i < $n; ++$i) {
- $s = self::sc25519_sq($s);
- }
- return self::sc25519_mul($s, $a);
- }
-
- /**
- * @param string $s
- * @return string
- */
- public static function sc25519_invert($s)
- {
- $_10 = self::sc25519_sq($s);
- $_11 = self::sc25519_mul($s, $_10);
- $_100 = self::sc25519_mul($s, $_11);
- $_1000 = self::sc25519_sq($_100);
- $_1010 = self::sc25519_mul($_10, $_1000);
- $_1011 = self::sc25519_mul($s, $_1010);
- $_10000 = self::sc25519_sq($_1000);
- $_10110 = self::sc25519_sq($_1011);
- $_100000 = self::sc25519_mul($_1010, $_10110);
- $_100110 = self::sc25519_mul($_10000, $_10110);
- $_1000000 = self::sc25519_sq($_100000);
- $_1010000 = self::sc25519_mul($_10000, $_1000000);
- $_1010011 = self::sc25519_mul($_11, $_1010000);
- $_1100011 = self::sc25519_mul($_10000, $_1010011);
- $_1100111 = self::sc25519_mul($_100, $_1100011);
- $_1101011 = self::sc25519_mul($_100, $_1100111);
- $_10010011 = self::sc25519_mul($_1000000, $_1010011);
- $_10010111 = self::sc25519_mul($_100, $_10010011);
- $_10111101 = self::sc25519_mul($_100110, $_10010111);
- $_11010011 = self::sc25519_mul($_10110, $_10111101);
- $_11100111 = self::sc25519_mul($_1010000, $_10010111);
- $_11101011 = self::sc25519_mul($_100, $_11100111);
- $_11110101 = self::sc25519_mul($_1010, $_11101011);
-
- $recip = self::sc25519_mul($_1011, $_11110101);
- $recip = self::sc25519_sqmul($recip, 126, $_1010011);
- $recip = self::sc25519_sqmul($recip, 9, $_10);
- $recip = self::sc25519_mul($recip, $_11110101);
- $recip = self::sc25519_sqmul($recip, 7, $_1100111);
- $recip = self::sc25519_sqmul($recip, 9, $_11110101);
- $recip = self::sc25519_sqmul($recip, 11, $_10111101);
- $recip = self::sc25519_sqmul($recip, 8, $_11100111);
- $recip = self::sc25519_sqmul($recip, 9, $_1101011);
- $recip = self::sc25519_sqmul($recip, 6, $_1011);
- $recip = self::sc25519_sqmul($recip, 14, $_10010011);
- $recip = self::sc25519_sqmul($recip, 10, $_1100011);
- $recip = self::sc25519_sqmul($recip, 9, $_10010111);
- $recip = self::sc25519_sqmul($recip, 10, $_11110101);
- $recip = self::sc25519_sqmul($recip, 8, $_11010011);
- return self::sc25519_sqmul($recip, 8, $_11101011);
- }
-
- /**
- * @param string $s
- * @return string
- */
- public static function clamp($s)
- {
- $s_ = self::stringToIntArray($s);
- $s_[0] &= 248;
- $s_[31] |= 64;
- $s_[31] &= 128;
- return self::intArrayToString($s_);
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core_Curve25519', false)) {
+ return;
+}
+
+/**
+ * Class ParagonIE_Sodium_Core_Curve25519
+ *
+ * Implements Curve25519 core functions
+ *
+ * Based on the ref10 curve25519 code provided by libsodium
+ *
+ * @ref https://github.com/jedisct1/libsodium/blob/master/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c
+ */
+abstract class ParagonIE_Sodium_Core_Curve25519 extends ParagonIE_Sodium_Core_Curve25519_H
+{
+ /**
+ * Get a field element of size 10 with a value of 0
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_0()
+ {
+ return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
+ array(0, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+ );
+ }
+
+ /**
+ * Get a field element of size 10 with a value of 1
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_1()
+ {
+ return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
+ array(1, 0, 0, 0, 0, 0, 0, 0, 0, 0)
+ );
+ }
+
+ /**
+ * Add two field elements.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedOperand
+ */
+ public static function fe_add(
+ ParagonIE_Sodium_Core_Curve25519_Fe $f,
+ ParagonIE_Sodium_Core_Curve25519_Fe $g
+ ) {
+ /** @var array<int, int> $arr */
+ $arr = array();
+ for ($i = 0; $i < 10; ++$i) {
+ $arr[$i] = (int) ($f[$i] + $g[$i]);
+ }
+ return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($arr);
+ }
+
+ /**
+ * Constant-time conditional move.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
+ * @param int $b
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ * @psalm-suppress MixedAssignment
+ */
+ public static function fe_cmov(
+ ParagonIE_Sodium_Core_Curve25519_Fe $f,
+ ParagonIE_Sodium_Core_Curve25519_Fe $g,
+ $b = 0
+ ) {
+ /** @var array<int, int> $h */
+ $h = array();
+ $b *= -1;
+ for ($i = 0; $i < 10; ++$i) {
+ $x = (($f[$i] ^ $g[$i]) & $b);
+ $h[$i] = ($f[$i]) ^ $x;
+ }
+ return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($h);
+ }
+
+ /**
+ * Create a copy of a field element.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_copy(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ $h = clone $f;
+ return $h;
+ }
+
+ /**
+ * Give: 32-byte string.
+ * Receive: A field element object to use for internal calculations.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $s
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ * @throws RangeException
+ * @throws TypeError
+ */
+ public static function fe_frombytes($s)
+ {
+ if (self::strlen($s) !== 32) {
+ throw new RangeException('Expected a 32-byte string.');
+ }
+ $h0 = self::load_4($s);
+ $h1 = self::load_3(self::substr($s, 4, 3)) << 6;
+ $h2 = self::load_3(self::substr($s, 7, 3)) << 5;
+ $h3 = self::load_3(self::substr($s, 10, 3)) << 3;
+ $h4 = self::load_3(self::substr($s, 13, 3)) << 2;
+ $h5 = self::load_4(self::substr($s, 16, 4));
+ $h6 = self::load_3(self::substr($s, 20, 3)) << 7;
+ $h7 = self::load_3(self::substr($s, 23, 3)) << 5;
+ $h8 = self::load_3(self::substr($s, 26, 3)) << 4;
+ $h9 = (self::load_3(self::substr($s, 29, 3)) & 8388607) << 2;
+
+ $carry9 = ($h9 + (1 << 24)) >> 25;
+ $h0 += self::mul($carry9, 19, 5);
+ $h9 -= $carry9 << 25;
+ $carry1 = ($h1 + (1 << 24)) >> 25;
+ $h2 += $carry1;
+ $h1 -= $carry1 << 25;
+ $carry3 = ($h3 + (1 << 24)) >> 25;
+ $h4 += $carry3;
+ $h3 -= $carry3 << 25;
+ $carry5 = ($h5 + (1 << 24)) >> 25;
+ $h6 += $carry5;
+ $h5 -= $carry5 << 25;
+ $carry7 = ($h7 + (1 << 24)) >> 25;
+ $h8 += $carry7;
+ $h7 -= $carry7 << 25;
+
+ $carry0 = ($h0 + (1 << 25)) >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+ $carry2 = ($h2 + (1 << 25)) >> 26;
+ $h3 += $carry2;
+ $h2 -= $carry2 << 26;
+ $carry4 = ($h4 + (1 << 25)) >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+ $carry6 = ($h6 + (1 << 25)) >> 26;
+ $h7 += $carry6;
+ $h6 -= $carry6 << 26;
+ $carry8 = ($h8 + (1 << 25)) >> 26;
+ $h9 += $carry8;
+ $h8 -= $carry8 << 26;
+
+ return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
+ array(
+ (int) $h0,
+ (int) $h1,
+ (int) $h2,
+ (int) $h3,
+ (int) $h4,
+ (int) $h5,
+ (int) $h6,
+ (int) $h7,
+ (int) $h8,
+ (int) $h9
+ )
+ );
+ }
+
+ /**
+ * Convert a field element to a byte string.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $h
+ * @return string
+ */
+ public static function fe_tobytes(ParagonIE_Sodium_Core_Curve25519_Fe $h)
+ {
+ $h0 = (int) $h[0];
+ $h1 = (int) $h[1];
+ $h2 = (int) $h[2];
+ $h3 = (int) $h[3];
+ $h4 = (int) $h[4];
+ $h5 = (int) $h[5];
+ $h6 = (int) $h[6];
+ $h7 = (int) $h[7];
+ $h8 = (int) $h[8];
+ $h9 = (int) $h[9];
+
+ $q = (self::mul($h9, 19, 5) + (1 << 24)) >> 25;
+ $q = ($h0 + $q) >> 26;
+ $q = ($h1 + $q) >> 25;
+ $q = ($h2 + $q) >> 26;
+ $q = ($h3 + $q) >> 25;
+ $q = ($h4 + $q) >> 26;
+ $q = ($h5 + $q) >> 25;
+ $q = ($h6 + $q) >> 26;
+ $q = ($h7 + $q) >> 25;
+ $q = ($h8 + $q) >> 26;
+ $q = ($h9 + $q) >> 25;
+
+ $h0 += self::mul($q, 19, 5);
+
+ $carry0 = $h0 >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+ $carry1 = $h1 >> 25;
+ $h2 += $carry1;
+ $h1 -= $carry1 << 25;
+ $carry2 = $h2 >> 26;
+ $h3 += $carry2;
+ $h2 -= $carry2 << 26;
+ $carry3 = $h3 >> 25;
+ $h4 += $carry3;
+ $h3 -= $carry3 << 25;
+ $carry4 = $h4 >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+ $carry5 = $h5 >> 25;
+ $h6 += $carry5;
+ $h5 -= $carry5 << 25;
+ $carry6 = $h6 >> 26;
+ $h7 += $carry6;
+ $h6 -= $carry6 << 26;
+ $carry7 = $h7 >> 25;
+ $h8 += $carry7;
+ $h7 -= $carry7 << 25;
+ $carry8 = $h8 >> 26;
+ $h9 += $carry8;
+ $h8 -= $carry8 << 26;
+ $carry9 = $h9 >> 25;
+ $h9 -= $carry9 << 25;
+
+ /**
+ * @var array<int, int>
+ */
+ $s = array(
+ (int) (($h0 >> 0) & 0xff),
+ (int) (($h0 >> 8) & 0xff),
+ (int) (($h0 >> 16) & 0xff),
+ (int) ((($h0 >> 24) | ($h1 << 2)) & 0xff),
+ (int) (($h1 >> 6) & 0xff),
+ (int) (($h1 >> 14) & 0xff),
+ (int) ((($h1 >> 22) | ($h2 << 3)) & 0xff),
+ (int) (($h2 >> 5) & 0xff),
+ (int) (($h2 >> 13) & 0xff),
+ (int) ((($h2 >> 21) | ($h3 << 5)) & 0xff),
+ (int) (($h3 >> 3) & 0xff),
+ (int) (($h3 >> 11) & 0xff),
+ (int) ((($h3 >> 19) | ($h4 << 6)) & 0xff),
+ (int) (($h4 >> 2) & 0xff),
+ (int) (($h4 >> 10) & 0xff),
+ (int) (($h4 >> 18) & 0xff),
+ (int) (($h5 >> 0) & 0xff),
+ (int) (($h5 >> 8) & 0xff),
+ (int) (($h5 >> 16) & 0xff),
+ (int) ((($h5 >> 24) | ($h6 << 1)) & 0xff),
+ (int) (($h6 >> 7) & 0xff),
+ (int) (($h6 >> 15) & 0xff),
+ (int) ((($h6 >> 23) | ($h7 << 3)) & 0xff),
+ (int) (($h7 >> 5) & 0xff),
+ (int) (($h7 >> 13) & 0xff),
+ (int) ((($h7 >> 21) | ($h8 << 4)) & 0xff),
+ (int) (($h8 >> 4) & 0xff),
+ (int) (($h8 >> 12) & 0xff),
+ (int) ((($h8 >> 20) | ($h9 << 6)) & 0xff),
+ (int) (($h9 >> 2) & 0xff),
+ (int) (($h9 >> 10) & 0xff),
+ (int) (($h9 >> 18) & 0xff)
+ );
+ return self::intArrayToString($s);
+ }
+
+ /**
+ * Is a field element negative? (1 = yes, 0 = no. Used in calculations.)
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return int
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function fe_isnegative(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ $str = self::fe_tobytes($f);
+ return (int) (self::chrToInt($str[0]) & 1);
+ }
+
+ /**
+ * Returns 0 if this field element results in all NUL bytes.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function fe_isnonzero(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ static $zero;
+ if ($zero === null) {
+ $zero = str_repeat("\x00", 32);
+ }
+ /** @var string $zero */
+ /** @var string $str */
+ $str = self::fe_tobytes($f);
+ return !self::verify_32($str, (string) $zero);
+ }
+
+ /**
+ * Multiply two field elements
+ *
+ * h = f * g
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @security Is multiplication a source of timing leaks? If so, can we do
+ * anything to prevent that from happening?
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_mul(
+ ParagonIE_Sodium_Core_Curve25519_Fe $f,
+ ParagonIE_Sodium_Core_Curve25519_Fe $g
+ ) {
+ // Ensure limbs aren't oversized.
+ $f = self::fe_normalize($f);
+ $g = self::fe_normalize($g);
+ $f0 = $f[0];
+ $f1 = $f[1];
+ $f2 = $f[2];
+ $f3 = $f[3];
+ $f4 = $f[4];
+ $f5 = $f[5];
+ $f6 = $f[6];
+ $f7 = $f[7];
+ $f8 = $f[8];
+ $f9 = $f[9];
+ $g0 = $g[0];
+ $g1 = $g[1];
+ $g2 = $g[2];
+ $g3 = $g[3];
+ $g4 = $g[4];
+ $g5 = $g[5];
+ $g6 = $g[6];
+ $g7 = $g[7];
+ $g8 = $g[8];
+ $g9 = $g[9];
+ $g1_19 = self::mul($g1, 19, 5);
+ $g2_19 = self::mul($g2, 19, 5);
+ $g3_19 = self::mul($g3, 19, 5);
+ $g4_19 = self::mul($g4, 19, 5);
+ $g5_19 = self::mul($g5, 19, 5);
+ $g6_19 = self::mul($g6, 19, 5);
+ $g7_19 = self::mul($g7, 19, 5);
+ $g8_19 = self::mul($g8, 19, 5);
+ $g9_19 = self::mul($g9, 19, 5);
+ $f1_2 = $f1 << 1;
+ $f3_2 = $f3 << 1;
+ $f5_2 = $f5 << 1;
+ $f7_2 = $f7 << 1;
+ $f9_2 = $f9 << 1;
+ $f0g0 = self::mul($f0, $g0, 26);
+ $f0g1 = self::mul($f0, $g1, 25);
+ $f0g2 = self::mul($f0, $g2, 26);
+ $f0g3 = self::mul($f0, $g3, 25);
+ $f0g4 = self::mul($f0, $g4, 26);
+ $f0g5 = self::mul($f0, $g5, 25);
+ $f0g6 = self::mul($f0, $g6, 26);
+ $f0g7 = self::mul($f0, $g7, 25);
+ $f0g8 = self::mul($f0, $g8, 26);
+ $f0g9 = self::mul($f0, $g9, 26);
+ $f1g0 = self::mul($f1, $g0, 26);
+ $f1g1_2 = self::mul($f1_2, $g1, 25);
+ $f1g2 = self::mul($f1, $g2, 26);
+ $f1g3_2 = self::mul($f1_2, $g3, 25);
+ $f1g4 = self::mul($f1, $g4, 26);
+ $f1g5_2 = self::mul($f1_2, $g5, 25);
+ $f1g6 = self::mul($f1, $g6, 26);
+ $f1g7_2 = self::mul($f1_2, $g7, 25);
+ $f1g8 = self::mul($f1, $g8, 26);
+ $f1g9_38 = self::mul($g9_19, $f1_2, 26);
+ $f2g0 = self::mul($f2, $g0, 26);
+ $f2g1 = self::mul($f2, $g1, 25);
+ $f2g2 = self::mul($f2, $g2, 26);
+ $f2g3 = self::mul($f2, $g3, 25);
+ $f2g4 = self::mul($f2, $g4, 26);
+ $f2g5 = self::mul($f2, $g5, 25);
+ $f2g6 = self::mul($f2, $g6, 26);
+ $f2g7 = self::mul($f2, $g7, 25);
+ $f2g8_19 = self::mul($g8_19, $f2, 26);
+ $f2g9_19 = self::mul($g9_19, $f2, 26);
+ $f3g0 = self::mul($f3, $g0, 26);
+ $f3g1_2 = self::mul($f3_2, $g1, 25);
+ $f3g2 = self::mul($f3, $g2, 26);
+ $f3g3_2 = self::mul($f3_2, $g3, 25);
+ $f3g4 = self::mul($f3, $g4, 26);
+ $f3g5_2 = self::mul($f3_2, $g5, 25);
+ $f3g6 = self::mul($f3, $g6, 26);
+ $f3g7_38 = self::mul($g7_19, $f3_2, 26);
+ $f3g8_19 = self::mul($g8_19, $f3, 25);
+ $f3g9_38 = self::mul($g9_19, $f3_2, 26);
+ $f4g0 = self::mul($f4, $g0, 26);
+ $f4g1 = self::mul($f4, $g1, 25);
+ $f4g2 = self::mul($f4, $g2, 26);
+ $f4g3 = self::mul($f4, $g3, 25);
+ $f4g4 = self::mul($f4, $g4, 26);
+ $f4g5 = self::mul($f4, $g5, 25);
+ $f4g6_19 = self::mul($g6_19, $f4, 26);
+ $f4g7_19 = self::mul($g7_19, $f4, 26);
+ $f4g8_19 = self::mul($g8_19, $f4, 26);
+ $f4g9_19 = self::mul($g9_19, $f4, 26);
+ $f5g0 = self::mul($f5, $g0, 26);
+ $f5g1_2 = self::mul($f5_2, $g1, 25);
+ $f5g2 = self::mul($f5, $g2, 26);
+ $f5g3_2 = self::mul($f5_2, $g3, 25);
+ $f5g4 = self::mul($f5, $g4, 26);
+ $f5g5_38 = self::mul($g5_19, $f5_2, 26);
+ $f5g6_19 = self::mul($g6_19, $f5, 25);
+ $f5g7_38 = self::mul($g7_19, $f5_2, 26);
+ $f5g8_19 = self::mul($g8_19, $f5, 25);
+ $f5g9_38 = self::mul($g9_19, $f5_2, 26);
+ $f6g0 = self::mul($f6, $g0, 26);
+ $f6g1 = self::mul($f6, $g1, 25);
+ $f6g2 = self::mul($f6, $g2, 26);
+ $f6g3 = self::mul($f6, $g3, 25);
+ $f6g4_19 = self::mul($g4_19, $f6, 26);
+ $f6g5_19 = self::mul($g5_19, $f6, 26);
+ $f6g6_19 = self::mul($g6_19, $f6, 26);
+ $f6g7_19 = self::mul($g7_19, $f6, 26);
+ $f6g8_19 = self::mul($g8_19, $f6, 26);
+ $f6g9_19 = self::mul($g9_19, $f6, 26);
+ $f7g0 = self::mul($f7, $g0, 26);
+ $f7g1_2 = self::mul($f7_2, $g1, 25);
+ $f7g2 = self::mul($f7, $g2, 26);
+ $f7g3_38 = self::mul($g3_19, $f7_2, 26);
+ $f7g4_19 = self::mul($g4_19, $f7, 26);
+ $f7g5_38 = self::mul($g5_19, $f7_2, 26);
+ $f7g6_19 = self::mul($g6_19, $f7, 25);
+ $f7g7_38 = self::mul($g7_19, $f7_2, 26);
+ $f7g8_19 = self::mul($g8_19, $f7, 25);
+ $f7g9_38 = self::mul($g9_19,$f7_2, 26);
+ $f8g0 = self::mul($f8, $g0, 26);
+ $f8g1 = self::mul($f8, $g1, 25);
+ $f8g2_19 = self::mul($g2_19, $f8, 26);
+ $f8g3_19 = self::mul($g3_19, $f8, 26);
+ $f8g4_19 = self::mul($g4_19, $f8, 26);
+ $f8g5_19 = self::mul($g5_19, $f8, 26);
+ $f8g6_19 = self::mul($g6_19, $f8, 26);
+ $f8g7_19 = self::mul($g7_19, $f8, 26);
+ $f8g8_19 = self::mul($g8_19, $f8, 26);
+ $f8g9_19 = self::mul($g9_19, $f8, 26);
+ $f9g0 = self::mul($f9, $g0, 26);
+ $f9g1_38 = self::mul($g1_19, $f9_2, 26);
+ $f9g2_19 = self::mul($g2_19, $f9, 25);
+ $f9g3_38 = self::mul($g3_19, $f9_2, 26);
+ $f9g4_19 = self::mul($g4_19, $f9, 25);
+ $f9g5_38 = self::mul($g5_19, $f9_2, 26);
+ $f9g6_19 = self::mul($g6_19, $f9, 25);
+ $f9g7_38 = self::mul($g7_19, $f9_2, 26);
+ $f9g8_19 = self::mul($g8_19, $f9, 25);
+ $f9g9_38 = self::mul($g9_19, $f9_2, 26);
+
+ $h0 = $f0g0 + $f1g9_38 + $f2g8_19 + $f3g7_38 + $f4g6_19 + $f5g5_38 + $f6g4_19 + $f7g3_38 + $f8g2_19 + $f9g1_38;
+ $h1 = $f0g1 + $f1g0 + $f2g9_19 + $f3g8_19 + $f4g7_19 + $f5g6_19 + $f6g5_19 + $f7g4_19 + $f8g3_19 + $f9g2_19;
+ $h2 = $f0g2 + $f1g1_2 + $f2g0 + $f3g9_38 + $f4g8_19 + $f5g7_38 + $f6g6_19 + $f7g5_38 + $f8g4_19 + $f9g3_38;
+ $h3 = $f0g3 + $f1g2 + $f2g1 + $f3g0 + $f4g9_19 + $f5g8_19 + $f6g7_19 + $f7g6_19 + $f8g5_19 + $f9g4_19;
+ $h4 = $f0g4 + $f1g3_2 + $f2g2 + $f3g1_2 + $f4g0 + $f5g9_38 + $f6g8_19 + $f7g7_38 + $f8g6_19 + $f9g5_38;
+ $h5 = $f0g5 + $f1g4 + $f2g3 + $f3g2 + $f4g1 + $f5g0 + $f6g9_19 + $f7g8_19 + $f8g7_19 + $f9g6_19;
+ $h6 = $f0g6 + $f1g5_2 + $f2g4 + $f3g3_2 + $f4g2 + $f5g1_2 + $f6g0 + $f7g9_38 + $f8g8_19 + $f9g7_38;
+ $h7 = $f0g7 + $f1g6 + $f2g5 + $f3g4 + $f4g3 + $f5g2 + $f6g1 + $f7g0 + $f8g9_19 + $f9g8_19;
+ $h8 = $f0g8 + $f1g7_2 + $f2g6 + $f3g5_2 + $f4g4 + $f5g3_2 + $f6g2 + $f7g1_2 + $f8g0 + $f9g9_38;
+ $h9 = $f0g9 + $f1g8 + $f2g7 + $f3g6 + $f4g5 + $f5g4 + $f6g3 + $f7g2 + $f8g1 + $f9g0 ;
+
+ $carry0 = ($h0 + (1 << 25)) >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+ $carry4 = ($h4 + (1 << 25)) >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+
+ $carry1 = ($h1 + (1 << 24)) >> 25;
+ $h2 += $carry1;
+ $h1 -= $carry1 << 25;
+ $carry5 = ($h5 + (1 << 24)) >> 25;
+ $h6 += $carry5;
+ $h5 -= $carry5 << 25;
+
+ $carry2 = ($h2 + (1 << 25)) >> 26;
+ $h3 += $carry2;
+ $h2 -= $carry2 << 26;
+ $carry6 = ($h6 + (1 << 25)) >> 26;
+ $h7 += $carry6;
+ $h6 -= $carry6 << 26;
+
+ $carry3 = ($h3 + (1 << 24)) >> 25;
+ $h4 += $carry3;
+ $h3 -= $carry3 << 25;
+ $carry7 = ($h7 + (1 << 24)) >> 25;
+ $h8 += $carry7;
+ $h7 -= $carry7 << 25;
+
+ $carry4 = ($h4 + (1 << 25)) >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+ $carry8 = ($h8 + (1 << 25)) >> 26;
+ $h9 += $carry8;
+ $h8 -= $carry8 << 26;
+
+ $carry9 = ($h9 + (1 << 24)) >> 25;
+ $h0 += self::mul($carry9, 19, 5);
+ $h9 -= $carry9 << 25;
+
+ $carry0 = ($h0 + (1 << 25)) >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+
+ return self::fe_normalize(
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
+ array(
+ (int) $h0,
+ (int) $h1,
+ (int) $h2,
+ (int) $h3,
+ (int) $h4,
+ (int) $h5,
+ (int) $h6,
+ (int) $h7,
+ (int) $h8,
+ (int) $h9
+ )
+ )
+ );
+ }
+
+ /**
+ * Get the negative values for each piece of the field element.
+ *
+ * h = -f
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ * @psalm-suppress MixedAssignment
+ */
+ public static function fe_neg(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ $h = new ParagonIE_Sodium_Core_Curve25519_Fe();
+ for ($i = 0; $i < 10; ++$i) {
+ $h[$i] = -$f[$i];
+ }
+ return self::fe_normalize($h);
+ }
+
+ /**
+ * Square a field element
+ *
+ * h = f * f
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_sq(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ $f = self::fe_normalize($f);
+ $f0 = (int) $f[0];
+ $f1 = (int) $f[1];
+ $f2 = (int) $f[2];
+ $f3 = (int) $f[3];
+ $f4 = (int) $f[4];
+ $f5 = (int) $f[5];
+ $f6 = (int) $f[6];
+ $f7 = (int) $f[7];
+ $f8 = (int) $f[8];
+ $f9 = (int) $f[9];
+
+ $f0_2 = $f0 << 1;
+ $f1_2 = $f1 << 1;
+ $f2_2 = $f2 << 1;
+ $f3_2 = $f3 << 1;
+ $f4_2 = $f4 << 1;
+ $f5_2 = $f5 << 1;
+ $f6_2 = $f6 << 1;
+ $f7_2 = $f7 << 1;
+ $f5_38 = self::mul($f5, 38, 6);
+ $f6_19 = self::mul($f6, 19, 5);
+ $f7_38 = self::mul($f7, 38, 6);
+ $f8_19 = self::mul($f8, 19, 5);
+ $f9_38 = self::mul($f9, 38, 6);
+ $f0f0 = self::mul($f0, $f0, 26);
+ $f0f1_2 = self::mul($f0_2, $f1, 26);
+ $f0f2_2 = self::mul($f0_2, $f2, 26);
+ $f0f3_2 = self::mul($f0_2, $f3, 26);
+ $f0f4_2 = self::mul($f0_2, $f4, 26);
+ $f0f5_2 = self::mul($f0_2, $f5, 26);
+ $f0f6_2 = self::mul($f0_2, $f6, 26);
+ $f0f7_2 = self::mul($f0_2, $f7, 26);
+ $f0f8_2 = self::mul($f0_2, $f8, 26);
+ $f0f9_2 = self::mul($f0_2, $f9, 26);
+ $f1f1_2 = self::mul($f1_2, $f1, 26);
+ $f1f2_2 = self::mul($f1_2, $f2, 26);
+ $f1f3_4 = self::mul($f1_2, $f3_2, 26);
+ $f1f4_2 = self::mul($f1_2, $f4, 26);
+ $f1f5_4 = self::mul($f1_2, $f5_2, 26);
+ $f1f6_2 = self::mul($f1_2, $f6, 26);
+ $f1f7_4 = self::mul($f1_2, $f7_2, 26);
+ $f1f8_2 = self::mul($f1_2, $f8, 26);
+ $f1f9_76 = self::mul($f9_38, $f1_2, 27);
+ $f2f2 = self::mul($f2, $f2, 27);
+ $f2f3_2 = self::mul($f2_2, $f3, 27);
+ $f2f4_2 = self::mul($f2_2, $f4, 27);
+ $f2f5_2 = self::mul($f2_2, $f5, 27);
+ $f2f6_2 = self::mul($f2_2, $f6, 27);
+ $f2f7_2 = self::mul($f2_2, $f7, 27);
+ $f2f8_38 = self::mul($f8_19, $f2_2, 27);
+ $f2f9_38 = self::mul($f9_38, $f2, 26);
+ $f3f3_2 = self::mul($f3_2, $f3, 26);
+ $f3f4_2 = self::mul($f3_2, $f4, 26);
+ $f3f5_4 = self::mul($f3_2, $f5_2, 26);
+ $f3f6_2 = self::mul($f3_2, $f6, 26);
+ $f3f7_76 = self::mul($f7_38, $f3_2, 26);
+ $f3f8_38 = self::mul($f8_19, $f3_2, 26);
+ $f3f9_76 = self::mul($f9_38, $f3_2, 26);
+ $f4f4 = self::mul($f4, $f4, 26);
+ $f4f5_2 = self::mul($f4_2, $f5, 26);
+ $f4f6_38 = self::mul($f6_19, $f4_2, 27);
+ $f4f7_38 = self::mul($f7_38, $f4, 26);
+ $f4f8_38 = self::mul($f8_19, $f4_2, 27);
+ $f4f9_38 = self::mul($f9_38, $f4, 26);
+ $f5f5_38 = self::mul($f5_38, $f5, 26);
+ $f5f6_38 = self::mul($f6_19, $f5_2, 26);
+ $f5f7_76 = self::mul($f7_38, $f5_2, 26);
+ $f5f8_38 = self::mul($f8_19, $f5_2, 26);
+ $f5f9_76 = self::mul($f9_38, $f5_2, 26);
+ $f6f6_19 = self::mul($f6_19, $f6, 26);
+ $f6f7_38 = self::mul($f7_38, $f6, 26);
+ $f6f8_38 = self::mul($f8_19, $f6_2, 27);
+ $f6f9_38 = self::mul($f9_38, $f6, 26);
+ $f7f7_38 = self::mul($f7_38, $f7, 26);
+ $f7f8_38 = self::mul($f8_19, $f7_2, 26);
+ $f7f9_76 = self::mul($f9_38, $f7_2, 26);
+ $f8f8_19 = self::mul($f8_19, $f8, 26);
+ $f8f9_38 = self::mul($f9_38, $f8, 26);
+ $f9f9_38 = self::mul($f9_38, $f9, 26);
+ $h0 = $f0f0 + $f1f9_76 + $f2f8_38 + $f3f7_76 + $f4f6_38 + $f5f5_38;
+ $h1 = $f0f1_2 + $f2f9_38 + $f3f8_38 + $f4f7_38 + $f5f6_38;
+ $h2 = $f0f2_2 + $f1f1_2 + $f3f9_76 + $f4f8_38 + $f5f7_76 + $f6f6_19;
+ $h3 = $f0f3_2 + $f1f2_2 + $f4f9_38 + $f5f8_38 + $f6f7_38;
+ $h4 = $f0f4_2 + $f1f3_4 + $f2f2 + $f5f9_76 + $f6f8_38 + $f7f7_38;
+ $h5 = $f0f5_2 + $f1f4_2 + $f2f3_2 + $f6f9_38 + $f7f8_38;
+ $h6 = $f0f6_2 + $f1f5_4 + $f2f4_2 + $f3f3_2 + $f7f9_76 + $f8f8_19;
+ $h7 = $f0f7_2 + $f1f6_2 + $f2f5_2 + $f3f4_2 + $f8f9_38;
+ $h8 = $f0f8_2 + $f1f7_4 + $f2f6_2 + $f3f5_4 + $f4f4 + $f9f9_38;
+ $h9 = $f0f9_2 + $f1f8_2 + $f2f7_2 + $f3f6_2 + $f4f5_2;
+
+ $carry0 = ($h0 + (1 << 25)) >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+ $carry4 = ($h4 + (1 << 25)) >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+
+ $carry1 = ($h1 + (1 << 24)) >> 25;
+ $h2 += $carry1;
+ $h1 -= $carry1 << 25;
+ $carry5 = ($h5 + (1 << 24)) >> 25;
+ $h6 += $carry5;
+ $h5 -= $carry5 << 25;
+
+ $carry2 = ($h2 + (1 << 25)) >> 26;
+ $h3 += $carry2;
+ $h2 -= $carry2 << 26;
+ $carry6 = ($h6 + (1 << 25)) >> 26;
+ $h7 += $carry6;
+ $h6 -= $carry6 << 26;
+
+ $carry3 = ($h3 + (1 << 24)) >> 25;
+ $h4 += $carry3;
+ $h3 -= $carry3 << 25;
+ $carry7 = ($h7 + (1 << 24)) >> 25;
+ $h8 += $carry7;
+ $h7 -= $carry7 << 25;
+
+ $carry4 = ($h4 + (1 << 25)) >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+ $carry8 = ($h8 + (1 << 25)) >> 26;
+ $h9 += $carry8;
+ $h8 -= $carry8 << 26;
+
+ $carry9 = ($h9 + (1 << 24)) >> 25;
+ $h0 += self::mul($carry9, 19, 5);
+ $h9 -= $carry9 << 25;
+
+ $carry0 = ($h0 + (1 << 25)) >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+
+ return self::fe_normalize(
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
+ array(
+ (int) $h0,
+ (int) $h1,
+ (int) $h2,
+ (int) $h3,
+ (int) $h4,
+ (int) $h5,
+ (int) $h6,
+ (int) $h7,
+ (int) $h8,
+ (int) $h9
+ )
+ )
+ );
+ }
+
+
+ /**
+ * Square and double a field element
+ *
+ * h = 2 * f * f
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_sq2(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ $f = self::fe_normalize($f);
+ $f0 = (int) $f[0];
+ $f1 = (int) $f[1];
+ $f2 = (int) $f[2];
+ $f3 = (int) $f[3];
+ $f4 = (int) $f[4];
+ $f5 = (int) $f[5];
+ $f6 = (int) $f[6];
+ $f7 = (int) $f[7];
+ $f8 = (int) $f[8];
+ $f9 = (int) $f[9];
+
+ $f0_2 = $f0 << 1;
+ $f1_2 = $f1 << 1;
+ $f2_2 = $f2 << 1;
+ $f3_2 = $f3 << 1;
+ $f4_2 = $f4 << 1;
+ $f5_2 = $f5 << 1;
+ $f6_2 = $f6 << 1;
+ $f7_2 = $f7 << 1;
+ $f5_38 = self::mul($f5, 38, 6); /* 1.959375*2^30 */
+ $f6_19 = self::mul($f6, 19, 5); /* 1.959375*2^30 */
+ $f7_38 = self::mul($f7, 38, 6); /* 1.959375*2^30 */
+ $f8_19 = self::mul($f8, 19, 5); /* 1.959375*2^30 */
+ $f9_38 = self::mul($f9, 38, 6); /* 1.959375*2^30 */
+ $f0f0 = self::mul($f0, $f0, 24);
+ $f0f1_2 = self::mul($f0_2, $f1, 24);
+ $f0f2_2 = self::mul($f0_2, $f2, 24);
+ $f0f3_2 = self::mul($f0_2, $f3, 24);
+ $f0f4_2 = self::mul($f0_2, $f4, 24);
+ $f0f5_2 = self::mul($f0_2, $f5, 24);
+ $f0f6_2 = self::mul($f0_2, $f6, 24);
+ $f0f7_2 = self::mul($f0_2, $f7, 24);
+ $f0f8_2 = self::mul($f0_2, $f8, 24);
+ $f0f9_2 = self::mul($f0_2, $f9, 24);
+ $f1f1_2 = self::mul($f1_2, $f1, 24);
+ $f1f2_2 = self::mul($f1_2, $f2, 24);
+ $f1f3_4 = self::mul($f1_2, $f3_2, 24);
+ $f1f4_2 = self::mul($f1_2, $f4, 24);
+ $f1f5_4 = self::mul($f1_2, $f5_2, 24);
+ $f1f6_2 = self::mul($f1_2, $f6, 24);
+ $f1f7_4 = self::mul($f1_2, $f7_2, 24);
+ $f1f8_2 = self::mul($f1_2, $f8, 24);
+ $f1f9_76 = self::mul($f9_38, $f1_2, 24);
+ $f2f2 = self::mul($f2, $f2, 24);
+ $f2f3_2 = self::mul($f2_2, $f3, 24);
+ $f2f4_2 = self::mul($f2_2, $f4, 24);
+ $f2f5_2 = self::mul($f2_2, $f5, 24);
+ $f2f6_2 = self::mul($f2_2, $f6, 24);
+ $f2f7_2 = self::mul($f2_2, $f7, 24);
+ $f2f8_38 = self::mul($f8_19, $f2_2, 25);
+ $f2f9_38 = self::mul($f9_38, $f2, 24);
+ $f3f3_2 = self::mul($f3_2, $f3, 24);
+ $f3f4_2 = self::mul($f3_2, $f4, 24);
+ $f3f5_4 = self::mul($f3_2, $f5_2, 24);
+ $f3f6_2 = self::mul($f3_2, $f6, 24);
+ $f3f7_76 = self::mul($f7_38, $f3_2, 24);
+ $f3f8_38 = self::mul($f8_19, $f3_2, 24);
+ $f3f9_76 = self::mul($f9_38, $f3_2, 24);
+ $f4f4 = self::mul($f4, $f4, 24);
+ $f4f5_2 = self::mul($f4_2, $f5, 24);
+ $f4f6_38 = self::mul($f6_19, $f4_2, 25);
+ $f4f7_38 = self::mul($f7_38, $f4, 24);
+ $f4f8_38 = self::mul($f8_19, $f4_2, 25);
+ $f4f9_38 = self::mul($f9_38, $f4, 24);
+ $f5f5_38 = self::mul($f5_38, $f5, 24);
+ $f5f6_38 = self::mul($f6_19, $f5_2, 24);
+ $f5f7_76 = self::mul($f7_38, $f5_2, 24);
+ $f5f8_38 = self::mul($f8_19, $f5_2, 24);
+ $f5f9_76 = self::mul($f9_38, $f5_2, 24);
+ $f6f6_19 = self::mul($f6_19, $f6, 24);
+ $f6f7_38 = self::mul($f7_38, $f6, 24);
+ $f6f8_38 = self::mul($f8_19, $f6_2, 25);
+ $f6f9_38 = self::mul($f9_38, $f6, 24);
+ $f7f7_38 = self::mul($f7_38, $f7, 24);
+ $f7f8_38 = self::mul($f8_19, $f7_2, 24);
+ $f7f9_76 = self::mul($f9_38, $f7_2, 24);
+ $f8f8_19 = self::mul($f8_19, $f8, 24);
+ $f8f9_38 = self::mul($f9_38, $f8, 24);
+ $f9f9_38 = self::mul($f9_38, $f9, 24);
+
+ $h0 = (int) ($f0f0 + $f1f9_76 + $f2f8_38 + $f3f7_76 + $f4f6_38 + $f5f5_38) << 1;
+ $h1 = (int) ($f0f1_2 + $f2f9_38 + $f3f8_38 + $f4f7_38 + $f5f6_38) << 1;
+ $h2 = (int) ($f0f2_2 + $f1f1_2 + $f3f9_76 + $f4f8_38 + $f5f7_76 + $f6f6_19) << 1;
+ $h3 = (int) ($f0f3_2 + $f1f2_2 + $f4f9_38 + $f5f8_38 + $f6f7_38) << 1;
+ $h4 = (int) ($f0f4_2 + $f1f3_4 + $f2f2 + $f5f9_76 + $f6f8_38 + $f7f7_38) << 1;
+ $h5 = (int) ($f0f5_2 + $f1f4_2 + $f2f3_2 + $f6f9_38 + $f7f8_38) << 1;
+ $h6 = (int) ($f0f6_2 + $f1f5_4 + $f2f4_2 + $f3f3_2 + $f7f9_76 + $f8f8_19) << 1;
+ $h7 = (int) ($f0f7_2 + $f1f6_2 + $f2f5_2 + $f3f4_2 + $f8f9_38) << 1;
+ $h8 = (int) ($f0f8_2 + $f1f7_4 + $f2f6_2 + $f3f5_4 + $f4f4 + $f9f9_38) << 1;
+ $h9 = (int) ($f0f9_2 + $f1f8_2 + $f2f7_2 + $f3f6_2 + $f4f5_2) << 1;
+
+ $carry0 = ($h0 + (1 << 25)) >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+ $carry4 = ($h4 + (1 << 25)) >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+
+ $carry1 = ($h1 + (1 << 24)) >> 25;
+ $h2 += $carry1;
+ $h1 -= $carry1 << 25;
+ $carry5 = ($h5 + (1 << 24)) >> 25;
+ $h6 += $carry5;
+ $h5 -= $carry5 << 25;
+
+ $carry2 = ($h2 + (1 << 25)) >> 26;
+ $h3 += $carry2;
+ $h2 -= $carry2 << 26;
+ $carry6 = ($h6 + (1 << 25)) >> 26;
+ $h7 += $carry6;
+ $h6 -= $carry6 << 26;
+
+ $carry3 = ($h3 + (1 << 24)) >> 25;
+ $h4 += $carry3;
+ $h3 -= $carry3 << 25;
+ $carry7 = ($h7 + (1 << 24)) >> 25;
+ $h8 += $carry7;
+ $h7 -= $carry7 << 25;
+
+ $carry4 = ($h4 + (1 << 25)) >> 26;
+ $h5 += $carry4;
+ $h4 -= $carry4 << 26;
+ $carry8 = ($h8 + (1 << 25)) >> 26;
+ $h9 += $carry8;
+ $h8 -= $carry8 << 26;
+
+ $carry9 = ($h9 + (1 << 24)) >> 25;
+ $h0 += self::mul($carry9, 19, 5);
+ $h9 -= $carry9 << 25;
+
+ $carry0 = ($h0 + (1 << 25)) >> 26;
+ $h1 += $carry0;
+ $h0 -= $carry0 << 26;
+
+ return self::fe_normalize(
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
+ array(
+ (int) $h0,
+ (int) $h1,
+ (int) $h2,
+ (int) $h3,
+ (int) $h4,
+ (int) $h5,
+ (int) $h6,
+ (int) $h7,
+ (int) $h8,
+ (int) $h9
+ )
+ )
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $Z
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_invert(ParagonIE_Sodium_Core_Curve25519_Fe $Z)
+ {
+ $z = clone $Z;
+ $t0 = self::fe_sq($z);
+ $t1 = self::fe_sq($t0);
+ $t1 = self::fe_sq($t1);
+ $t1 = self::fe_mul($z, $t1);
+ $t0 = self::fe_mul($t0, $t1);
+ $t2 = self::fe_sq($t0);
+ $t1 = self::fe_mul($t1, $t2);
+ $t2 = self::fe_sq($t1);
+ for ($i = 1; $i < 5; ++$i) {
+ $t2 = self::fe_sq($t2);
+ }
+ $t1 = self::fe_mul($t2, $t1);
+ $t2 = self::fe_sq($t1);
+ for ($i = 1; $i < 10; ++$i) {
+ $t2 = self::fe_sq($t2);
+ }
+ $t2 = self::fe_mul($t2, $t1);
+ $t3 = self::fe_sq($t2);
+ for ($i = 1; $i < 20; ++$i) {
+ $t3 = self::fe_sq($t3);
+ }
+ $t2 = self::fe_mul($t3, $t2);
+ $t2 = self::fe_sq($t2);
+ for ($i = 1; $i < 10; ++$i) {
+ $t2 = self::fe_sq($t2);
+ }
+ $t1 = self::fe_mul($t2, $t1);
+ $t2 = self::fe_sq($t1);
+ for ($i = 1; $i < 50; ++$i) {
+ $t2 = self::fe_sq($t2);
+ }
+ $t2 = self::fe_mul($t2, $t1);
+ $t3 = self::fe_sq($t2);
+ for ($i = 1; $i < 100; ++$i) {
+ $t3 = self::fe_sq($t3);
+ }
+ $t2 = self::fe_mul($t3, $t2);
+ $t2 = self::fe_sq($t2);
+ for ($i = 1; $i < 50; ++$i) {
+ $t2 = self::fe_sq($t2);
+ }
+ $t1 = self::fe_mul($t2, $t1);
+ $t1 = self::fe_sq($t1);
+ for ($i = 1; $i < 5; ++$i) {
+ $t1 = self::fe_sq($t1);
+ }
+ return self::fe_mul($t1, $t0);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @ref https://github.com/jedisct1/libsodium/blob/68564326e1e9dc57ef03746f85734232d20ca6fb/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c#L1054-L1106
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $z
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_pow22523(ParagonIE_Sodium_Core_Curve25519_Fe $z)
+ {
+ $z = self::fe_normalize($z);
+ # fe_sq(t0, z);
+ # fe_sq(t1, t0);
+ # fe_sq(t1, t1);
+ # fe_mul(t1, z, t1);
+ # fe_mul(t0, t0, t1);
+ # fe_sq(t0, t0);
+ # fe_mul(t0, t1, t0);
+ # fe_sq(t1, t0);
+ $t0 = self::fe_sq($z);
+ $t1 = self::fe_sq($t0);
+ $t1 = self::fe_sq($t1);
+ $t1 = self::fe_mul($z, $t1);
+ $t0 = self::fe_mul($t0, $t1);
+ $t0 = self::fe_sq($t0);
+ $t0 = self::fe_mul($t1, $t0);
+ $t1 = self::fe_sq($t0);
+
+ # for (i = 1; i < 5; ++i) {
+ # fe_sq(t1, t1);
+ # }
+ for ($i = 1; $i < 5; ++$i) {
+ $t1 = self::fe_sq($t1);
+ }
+
+ # fe_mul(t0, t1, t0);
+ # fe_sq(t1, t0);
+ $t0 = self::fe_mul($t1, $t0);
+ $t1 = self::fe_sq($t0);
+
+ # for (i = 1; i < 10; ++i) {
+ # fe_sq(t1, t1);
+ # }
+ for ($i = 1; $i < 10; ++$i) {
+ $t1 = self::fe_sq($t1);
+ }
+
+ # fe_mul(t1, t1, t0);
+ # fe_sq(t2, t1);
+ $t1 = self::fe_mul($t1, $t0);
+ $t2 = self::fe_sq($t1);
+
+ # for (i = 1; i < 20; ++i) {
+ # fe_sq(t2, t2);
+ # }
+ for ($i = 1; $i < 20; ++$i) {
+ $t2 = self::fe_sq($t2);
+ }
+
+ # fe_mul(t1, t2, t1);
+ # fe_sq(t1, t1);
+ $t1 = self::fe_mul($t2, $t1);
+ $t1 = self::fe_sq($t1);
+
+ # for (i = 1; i < 10; ++i) {
+ # fe_sq(t1, t1);
+ # }
+ for ($i = 1; $i < 10; ++$i) {
+ $t1 = self::fe_sq($t1);
+ }
+
+ # fe_mul(t0, t1, t0);
+ # fe_sq(t1, t0);
+ $t0 = self::fe_mul($t1, $t0);
+ $t1 = self::fe_sq($t0);
+
+ # for (i = 1; i < 50; ++i) {
+ # fe_sq(t1, t1);
+ # }
+ for ($i = 1; $i < 50; ++$i) {
+ $t1 = self::fe_sq($t1);
+ }
+
+ # fe_mul(t1, t1, t0);
+ # fe_sq(t2, t1);
+ $t1 = self::fe_mul($t1, $t0);
+ $t2 = self::fe_sq($t1);
+
+ # for (i = 1; i < 100; ++i) {
+ # fe_sq(t2, t2);
+ # }
+ for ($i = 1; $i < 100; ++$i) {
+ $t2 = self::fe_sq($t2);
+ }
+
+ # fe_mul(t1, t2, t1);
+ # fe_sq(t1, t1);
+ $t1 = self::fe_mul($t2, $t1);
+ $t1 = self::fe_sq($t1);
+
+ # for (i = 1; i < 50; ++i) {
+ # fe_sq(t1, t1);
+ # }
+ for ($i = 1; $i < 50; ++$i) {
+ $t1 = self::fe_sq($t1);
+ }
+
+ # fe_mul(t0, t1, t0);
+ # fe_sq(t0, t0);
+ # fe_sq(t0, t0);
+ # fe_mul(out, t0, z);
+ $t0 = self::fe_mul($t1, $t0);
+ $t0 = self::fe_sq($t0);
+ $t0 = self::fe_sq($t0);
+ return self::fe_mul($t0, $z);
+ }
+
+ /**
+ * Subtract two field elements.
+ *
+ * h = f - g
+ *
+ * Preconditions:
+ * |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+ * |g| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc.
+ *
+ * Postconditions:
+ * |h| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $g
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ * @psalm-suppress MixedOperand
+ */
+ public static function fe_sub(ParagonIE_Sodium_Core_Curve25519_Fe $f, ParagonIE_Sodium_Core_Curve25519_Fe $g)
+ {
+ return self::fe_normalize(
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(
+ array(
+ (int) ($f[0] - $g[0]),
+ (int) ($f[1] - $g[1]),
+ (int) ($f[2] - $g[2]),
+ (int) ($f[3] - $g[3]),
+ (int) ($f[4] - $g[4]),
+ (int) ($f[5] - $g[5]),
+ (int) ($f[6] - $g[6]),
+ (int) ($f[7] - $g[7]),
+ (int) ($f[8] - $g[8]),
+ (int) ($f[9] - $g[9])
+ )
+ )
+ );
+ }
+
+ /**
+ * Add two group elements.
+ *
+ * r = p + q
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
+ */
+ public static function ge_add(
+ ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
+ ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
+ ) {
+ $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
+ $r->X = self::fe_add($p->Y, $p->X);
+ $r->Y = self::fe_sub($p->Y, $p->X);
+ $r->Z = self::fe_mul($r->X, $q->YplusX);
+ $r->Y = self::fe_mul($r->Y, $q->YminusX);
+ $r->T = self::fe_mul($q->T2d, $p->T);
+ $r->X = self::fe_mul($p->Z, $q->Z);
+ $t0 = self::fe_add($r->X, $r->X);
+ $r->X = self::fe_sub($r->Z, $r->Y);
+ $r->Y = self::fe_add($r->Z, $r->Y);
+ $r->Z = self::fe_add($t0, $r->T);
+ $r->T = self::fe_sub($t0, $r->T);
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @ref https://github.com/jedisct1/libsodium/blob/157c4a80c13b117608aeae12178b2d38825f9f8f/src/libsodium/crypto_core/curve25519/ref10/curve25519_ref10.c#L1185-L1215
+ * @param string $a
+ * @return array<int, mixed>
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function slide($a)
+ {
+ if (self::strlen($a) < 256) {
+ if (self::strlen($a) < 16) {
+ $a = str_pad($a, 256, '0', STR_PAD_RIGHT);
+ }
+ }
+ /** @var array<int, int> $r */
+ $r = array();
+
+ /** @var int $i */
+ for ($i = 0; $i < 256; ++$i) {
+ $r[$i] = (int) (
+ 1 & (
+ self::chrToInt($a[(int) ($i >> 3)])
+ >>
+ ($i & 7)
+ )
+ );
+ }
+
+ for ($i = 0;$i < 256;++$i) {
+ if ($r[$i]) {
+ for ($b = 1;$b <= 6 && $i + $b < 256;++$b) {
+ if ($r[$i + $b]) {
+ if ($r[$i] + ($r[$i + $b] << $b) <= 15) {
+ $r[$i] += $r[$i + $b] << $b;
+ $r[$i + $b] = 0;
+ } elseif ($r[$i] - ($r[$i + $b] << $b) >= -15) {
+ $r[$i] -= $r[$i + $b] << $b;
+ for ($k = $i + $b; $k < 256; ++$k) {
+ if (!$r[$k]) {
+ $r[$k] = 1;
+ break;
+ }
+ $r[$k] = 0;
+ }
+ } else {
+ break;
+ }
+ }
+ }
+ }
+ }
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $s
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function ge_frombytes_negate_vartime($s)
+ {
+ static $d = null;
+ if (!$d) {
+ $d = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d);
+ }
+
+ # fe_frombytes(h->Y,s);
+ # fe_1(h->Z);
+ $h = new ParagonIE_Sodium_Core_Curve25519_Ge_P3(
+ self::fe_0(),
+ self::fe_frombytes($s),
+ self::fe_1()
+ );
+
+ # fe_sq(u,h->Y);
+ # fe_mul(v,u,d);
+ # fe_sub(u,u,h->Z); /* u = y^2-1 */
+ # fe_add(v,v,h->Z); /* v = dy^2+1 */
+ $u = self::fe_sq($h->Y);
+ /** @var ParagonIE_Sodium_Core_Curve25519_Fe $d */
+ $v = self::fe_mul($u, $d);
+ $u = self::fe_sub($u, $h->Z); /* u = y^2 - 1 */
+ $v = self::fe_add($v, $h->Z); /* v = dy^2 + 1 */
+
+ # fe_sq(v3,v);
+ # fe_mul(v3,v3,v); /* v3 = v^3 */
+ # fe_sq(h->X,v3);
+ # fe_mul(h->X,h->X,v);
+ # fe_mul(h->X,h->X,u); /* x = uv^7 */
+ $v3 = self::fe_sq($v);
+ $v3 = self::fe_mul($v3, $v); /* v3 = v^3 */
+ $h->X = self::fe_sq($v3);
+ $h->X = self::fe_mul($h->X, $v);
+ $h->X = self::fe_mul($h->X, $u); /* x = uv^7 */
+
+ # fe_pow22523(h->X,h->X); /* x = (uv^7)^((q-5)/8) */
+ # fe_mul(h->X,h->X,v3);
+ # fe_mul(h->X,h->X,u); /* x = uv^3(uv^7)^((q-5)/8) */
+ $h->X = self::fe_pow22523($h->X); /* x = (uv^7)^((q-5)/8) */
+ $h->X = self::fe_mul($h->X, $v3);
+ $h->X = self::fe_mul($h->X, $u); /* x = uv^3(uv^7)^((q-5)/8) */
+
+ # fe_sq(vxx,h->X);
+ # fe_mul(vxx,vxx,v);
+ # fe_sub(check,vxx,u); /* vx^2-u */
+ $vxx = self::fe_sq($h->X);
+ $vxx = self::fe_mul($vxx, $v);
+ $check = self::fe_sub($vxx, $u); /* vx^2 - u */
+
+ # if (fe_isnonzero(check)) {
+ # fe_add(check,vxx,u); /* vx^2+u */
+ # if (fe_isnonzero(check)) {
+ # return -1;
+ # }
+ # fe_mul(h->X,h->X,sqrtm1);
+ # }
+ if (self::fe_isnonzero($check)) {
+ $check = self::fe_add($vxx, $u); /* vx^2 + u */
+ if (self::fe_isnonzero($check)) {
+ throw new RangeException('Internal check failed.');
+ }
+ $h->X = self::fe_mul(
+ $h->X,
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1)
+ );
+ }
+
+ # if (fe_isnegative(h->X) == (s[31] >> 7)) {
+ # fe_neg(h->X,h->X);
+ # }
+ $i = self::chrToInt($s[31]);
+ if (self::fe_isnegative($h->X) === ($i >> 7)) {
+ $h->X = self::fe_neg($h->X);
+ }
+
+ # fe_mul(h->T,h->X,h->Y);
+ $h->T = self::fe_mul($h->X, $h->Y);
+ return $h;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
+ */
+ public static function ge_madd(
+ ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R,
+ ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
+ ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
+ ) {
+ $r = clone $R;
+ $r->X = self::fe_add($p->Y, $p->X);
+ $r->Y = self::fe_sub($p->Y, $p->X);
+ $r->Z = self::fe_mul($r->X, $q->yplusx);
+ $r->Y = self::fe_mul($r->Y, $q->yminusx);
+ $r->T = self::fe_mul($q->xy2d, $p->T);
+ $t0 = self::fe_add(clone $p->Z, clone $p->Z);
+ $r->X = self::fe_sub($r->Z, $r->Y);
+ $r->Y = self::fe_add($r->Z, $r->Y);
+ $r->Z = self::fe_add($t0, $r->T);
+ $r->T = self::fe_sub($t0, $r->T);
+
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
+ */
+ public static function ge_msub(
+ ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $R,
+ ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
+ ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $q
+ ) {
+ $r = clone $R;
+
+ $r->X = self::fe_add($p->Y, $p->X);
+ $r->Y = self::fe_sub($p->Y, $p->X);
+ $r->Z = self::fe_mul($r->X, $q->yminusx);
+ $r->Y = self::fe_mul($r->Y, $q->yplusx);
+ $r->T = self::fe_mul($q->xy2d, $p->T);
+ $t0 = self::fe_add($p->Z, $p->Z);
+ $r->X = self::fe_sub($r->Z, $r->Y);
+ $r->Y = self::fe_add($r->Z, $r->Y);
+ $r->Z = self::fe_sub($t0, $r->T);
+ $r->T = self::fe_add($t0, $r->T);
+
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
+ */
+ public static function ge_p1p1_to_p2(ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p)
+ {
+ $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P2();
+ $r->X = self::fe_mul($p->X, $p->T);
+ $r->Y = self::fe_mul($p->Y, $p->Z);
+ $r->Z = self::fe_mul($p->Z, $p->T);
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
+ */
+ public static function ge_p1p1_to_p3(ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 $p)
+ {
+ $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P3();
+ $r->X = self::fe_mul($p->X, $p->T);
+ $r->Y = self::fe_mul($p->Y, $p->Z);
+ $r->Z = self::fe_mul($p->Z, $p->T);
+ $r->T = self::fe_mul($p->X, $p->Y);
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
+ */
+ public static function ge_p2_0()
+ {
+ return new ParagonIE_Sodium_Core_Curve25519_Ge_P2(
+ self::fe_0(),
+ self::fe_1(),
+ self::fe_1()
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P2 $p
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
+ */
+ public static function ge_p2_dbl(ParagonIE_Sodium_Core_Curve25519_Ge_P2 $p)
+ {
+ $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
+
+ $r->X = self::fe_sq($p->X);
+ $r->Z = self::fe_sq($p->Y);
+ $r->T = self::fe_sq2($p->Z);
+ $r->Y = self::fe_add($p->X, $p->Y);
+ $t0 = self::fe_sq($r->Y);
+ $r->Y = self::fe_add($r->Z, $r->X);
+ $r->Z = self::fe_sub($r->Z, $r->X);
+ $r->X = self::fe_sub($t0, $r->Y);
+ $r->T = self::fe_sub($r->T, $r->Z);
+
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
+ */
+ public static function ge_p3_0()
+ {
+ return new ParagonIE_Sodium_Core_Curve25519_Ge_P3(
+ self::fe_0(),
+ self::fe_1(),
+ self::fe_1(),
+ self::fe_0()
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_Cached
+ */
+ public static function ge_p3_to_cached(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p)
+ {
+ static $d2 = null;
+ if ($d2 === null) {
+ $d2 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d2);
+ }
+ /** @var ParagonIE_Sodium_Core_Curve25519_Fe $d2 */
+ $r = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached();
+ $r->YplusX = self::fe_add($p->Y, $p->X);
+ $r->YminusX = self::fe_sub($p->Y, $p->X);
+ $r->Z = self::fe_copy($p->Z);
+ $r->T2d = self::fe_mul($p->T, $d2);
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
+ */
+ public static function ge_p3_to_p2(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p)
+ {
+ return new ParagonIE_Sodium_Core_Curve25519_Ge_P2(
+ self::fe_copy($p->X),
+ self::fe_copy($p->Y),
+ self::fe_copy($p->Z)
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function ge_p3_tobytes(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h)
+ {
+ $recip = self::fe_invert($h->Z);
+ $x = self::fe_mul($h->X, $recip);
+ $y = self::fe_mul($h->Y, $recip);
+ $s = self::fe_tobytes($y);
+ $s[31] = self::intToChr(
+ self::chrToInt($s[31]) ^ (self::fe_isnegative($x) << 7)
+ );
+ return $s;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
+ */
+ public static function ge_p3_dbl(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p)
+ {
+ $q = self::ge_p3_to_p2($p);
+ return self::ge_p2_dbl($q);
+ }
+
+ /**
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
+ */
+ public static function ge_precomp_0()
+ {
+ return new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
+ self::fe_1(),
+ self::fe_1(),
+ self::fe_0()
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int $b
+ * @param int $c
+ * @return int
+ */
+ public static function equal($b, $c)
+ {
+ return (int) ((($b ^ $c) - 1) >> 31) & 1;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int|string $char
+ * @return int (1 = yes, 0 = no)
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function negative($char)
+ {
+ if (is_int($char)) {
+ return ($char >> 63) & 1;
+ }
+ $x = self::chrToInt(self::substr($char, 0, 1));
+ return (int) ($x >> 63);
+ }
+
+ /**
+ * Conditional move
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $t
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $u
+ * @param int $b
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
+ */
+ public static function cmov(
+ ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $t,
+ ParagonIE_Sodium_Core_Curve25519_Ge_Precomp $u,
+ $b
+ ) {
+ if (!is_int($b)) {
+ throw new InvalidArgumentException('Expected an integer.');
+ }
+ return new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
+ self::fe_cmov($t->yplusx, $u->yplusx, $b),
+ self::fe_cmov($t->yminusx, $u->yminusx, $b),
+ self::fe_cmov($t->xy2d, $u->xy2d, $b)
+ );
+ }
+
+ /**
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $t
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $u
+ * @param int $b
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_Cached
+ */
+ public static function ge_cmov_cached(
+ ParagonIE_Sodium_Core_Curve25519_Ge_Cached $t,
+ ParagonIE_Sodium_Core_Curve25519_Ge_Cached $u,
+ $b
+ ) {
+ $b &= 1;
+ $ret = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached();
+ $ret->YplusX = self::fe_cmov($t->YplusX, $u->YplusX, $b);
+ $ret->YminusX = self::fe_cmov($t->YminusX, $u->YminusX, $b);
+ $ret->Z = self::fe_cmov($t->Z, $u->Z, $b);
+ $ret->T2d = self::fe_cmov($t->T2d, $u->T2d, $b);
+ return $ret;
+ }
+
+ /**
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached[] $cached
+ * @param int $b
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_Cached
+ * @throws SodiumException
+ */
+ public static function ge_cmov8_cached(array $cached, $b)
+ {
+ // const unsigned char bnegative = negative(b);
+ // const unsigned char babs = b - (((-bnegative) & b) * ((signed char) 1 << 1));
+ $bnegative = self::negative($b);
+ $babs = $b - (((-$bnegative) & $b) << 1);
+
+ // ge25519_cached_0(t);
+ $t = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached(
+ self::fe_1(),
+ self::fe_1(),
+ self::fe_1(),
+ self::fe_0()
+ );
+
+ // ge25519_cmov_cached(t, &cached[0], equal(babs, 1));
+ // ge25519_cmov_cached(t, &cached[1], equal(babs, 2));
+ // ge25519_cmov_cached(t, &cached[2], equal(babs, 3));
+ // ge25519_cmov_cached(t, &cached[3], equal(babs, 4));
+ // ge25519_cmov_cached(t, &cached[4], equal(babs, 5));
+ // ge25519_cmov_cached(t, &cached[5], equal(babs, 6));
+ // ge25519_cmov_cached(t, &cached[6], equal(babs, 7));
+ // ge25519_cmov_cached(t, &cached[7], equal(babs, 8));
+ for ($x = 0; $x < 8; ++$x) {
+ $t = self::ge_cmov_cached($t, $cached[$x], self::equal($babs, $x + 1));
+ }
+
+ // fe25519_copy(minust.YplusX, t->YminusX);
+ // fe25519_copy(minust.YminusX, t->YplusX);
+ // fe25519_copy(minust.Z, t->Z);
+ // fe25519_neg(minust.T2d, t->T2d);
+ $minust = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached(
+ self::fe_copy($t->YminusX),
+ self::fe_copy($t->YplusX),
+ self::fe_copy($t->Z),
+ self::fe_neg($t->T2d)
+ );
+ return self::ge_cmov_cached($t, $minust, $bnegative);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int $pos
+ * @param int $b
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_Precomp
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayOffset
+ */
+ public static function ge_select($pos = 0, $b = 0)
+ {
+ static $base = null;
+ if ($base === null) {
+ $base = array();
+ /** @var int $i */
+ foreach (self::$base as $i => $bas) {
+ for ($j = 0; $j < 8; ++$j) {
+ $base[$i][$j] = new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($bas[$j][0]),
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($bas[$j][1]),
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($bas[$j][2])
+ );
+ }
+ }
+ }
+ /** @var array<int, array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Precomp>> $base */
+ if (!is_int($pos)) {
+ throw new InvalidArgumentException('Position must be an integer');
+ }
+ if ($pos < 0 || $pos > 31) {
+ throw new RangeException('Position is out of range [0, 31]');
+ }
+
+ $bnegative = self::negative($b);
+ $babs = $b - (((-$bnegative) & $b) << 1);
+
+ $t = self::ge_precomp_0();
+ for ($i = 0; $i < 8; ++$i) {
+ $t = self::cmov(
+ $t,
+ $base[$pos][$i],
+ self::equal($babs, $i + 1)
+ );
+ }
+ $minusT = new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
+ self::fe_copy($t->yminusx),
+ self::fe_copy($t->yplusx),
+ self::fe_neg($t->xy2d)
+ );
+ return self::cmov($t, $minusT, $bnegative);
+ }
+
+ /**
+ * Subtract two group elements.
+ *
+ * r = p - q
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P1p1
+ */
+ public static function ge_sub(
+ ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p,
+ ParagonIE_Sodium_Core_Curve25519_Ge_Cached $q
+ ) {
+ $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
+
+ $r->X = self::fe_add($p->Y, $p->X);
+ $r->Y = self::fe_sub($p->Y, $p->X);
+ $r->Z = self::fe_mul($r->X, $q->YminusX);
+ $r->Y = self::fe_mul($r->Y, $q->YplusX);
+ $r->T = self::fe_mul($q->T2d, $p->T);
+ $r->X = self::fe_mul($p->Z, $q->Z);
+ $t0 = self::fe_add($r->X, $r->X);
+ $r->X = self::fe_sub($r->Z, $r->Y);
+ $r->Y = self::fe_add($r->Z, $r->Y);
+ $r->Z = self::fe_sub($t0, $r->T);
+ $r->T = self::fe_add($t0, $r->T);
+
+ return $r;
+ }
+
+ /**
+ * Convert a group element to a byte string.
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P2 $h
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function ge_tobytes(ParagonIE_Sodium_Core_Curve25519_Ge_P2 $h)
+ {
+ $recip = self::fe_invert($h->Z);
+ $x = self::fe_mul($h->X, $recip);
+ $y = self::fe_mul($h->Y, $recip);
+ $s = self::fe_tobytes($y);
+ $s[31] = self::intToChr(
+ self::chrToInt($s[31]) ^ (self::fe_isnegative($x) << 7)
+ );
+ return $s;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $a
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A
+ * @param string $b
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P2
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayAccess
+ */
+ public static function ge_double_scalarmult_vartime(
+ $a,
+ ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A,
+ $b
+ ) {
+ /** @var array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Cached> $Ai */
+ $Ai = array();
+
+ /** @var array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Precomp> $Bi */
+ static $Bi = array();
+ if (!$Bi) {
+ for ($i = 0; $i < 8; ++$i) {
+ $Bi[$i] = new ParagonIE_Sodium_Core_Curve25519_Ge_Precomp(
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$base2[$i][0]),
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$base2[$i][1]),
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$base2[$i][2])
+ );
+ }
+ }
+ for ($i = 0; $i < 8; ++$i) {
+ $Ai[$i] = new ParagonIE_Sodium_Core_Curve25519_Ge_Cached(
+ self::fe_0(),
+ self::fe_0(),
+ self::fe_0(),
+ self::fe_0()
+ );
+ }
+
+ # slide(aslide,a);
+ # slide(bslide,b);
+ /** @var array<int, int> $aslide */
+ $aslide = self::slide($a);
+ /** @var array<int, int> $bslide */
+ $bslide = self::slide($b);
+
+ # ge_p3_to_cached(&Ai[0],A);
+ # ge_p3_dbl(&t,A); ge_p1p1_to_p3(&A2,&t);
+ $Ai[0] = self::ge_p3_to_cached($A);
+ $t = self::ge_p3_dbl($A);
+ $A2 = self::ge_p1p1_to_p3($t);
+
+ # ge_add(&t,&A2,&Ai[0]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[1],&u);
+ # ge_add(&t,&A2,&Ai[1]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[2],&u);
+ # ge_add(&t,&A2,&Ai[2]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[3],&u);
+ # ge_add(&t,&A2,&Ai[3]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[4],&u);
+ # ge_add(&t,&A2,&Ai[4]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[5],&u);
+ # ge_add(&t,&A2,&Ai[5]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[6],&u);
+ # ge_add(&t,&A2,&Ai[6]); ge_p1p1_to_p3(&u,&t); ge_p3_to_cached(&Ai[7],&u);
+ for ($i = 0; $i < 7; ++$i) {
+ $t = self::ge_add($A2, $Ai[$i]);
+ $u = self::ge_p1p1_to_p3($t);
+ $Ai[$i + 1] = self::ge_p3_to_cached($u);
+ }
+
+ # ge_p2_0(r);
+ $r = self::ge_p2_0();
+
+ # for (i = 255;i >= 0;--i) {
+ # if (aslide[i] || bslide[i]) break;
+ # }
+ $i = 255;
+ for (; $i >= 0; --$i) {
+ if ($aslide[$i] || $bslide[$i]) {
+ break;
+ }
+ }
+
+ # for (;i >= 0;--i) {
+ for (; $i >= 0; --$i) {
+ # ge_p2_dbl(&t,r);
+ $t = self::ge_p2_dbl($r);
+
+ # if (aslide[i] > 0) {
+ if ($aslide[$i] > 0) {
+ # ge_p1p1_to_p3(&u,&t);
+ # ge_add(&t,&u,&Ai[aslide[i]/2]);
+ $u = self::ge_p1p1_to_p3($t);
+ $t = self::ge_add(
+ $u,
+ $Ai[(int) floor($aslide[$i] / 2)]
+ );
+ # } else if (aslide[i] < 0) {
+ } elseif ($aslide[$i] < 0) {
+ # ge_p1p1_to_p3(&u,&t);
+ # ge_sub(&t,&u,&Ai[(-aslide[i])/2]);
+ $u = self::ge_p1p1_to_p3($t);
+ $t = self::ge_sub(
+ $u,
+ $Ai[(int) floor(-$aslide[$i] / 2)]
+ );
+ }
+
+ # if (bslide[i] > 0) {
+ if ($bslide[$i] > 0) {
+ /** @var int $index */
+ $index = (int) floor($bslide[$i] / 2);
+ # ge_p1p1_to_p3(&u,&t);
+ # ge_madd(&t,&u,&Bi[bslide[i]/2]);
+ $u = self::ge_p1p1_to_p3($t);
+ $t = self::ge_madd($t, $u, $Bi[$index]);
+ # } else if (bslide[i] < 0) {
+ } elseif ($bslide[$i] < 0) {
+ /** @var int $index */
+ $index = (int) floor(-$bslide[$i] / 2);
+ # ge_p1p1_to_p3(&u,&t);
+ # ge_msub(&t,&u,&Bi[(-bslide[i])/2]);
+ $u = self::ge_p1p1_to_p3($t);
+ $t = self::ge_msub($t, $u, $Bi[$index]);
+ }
+ # ge_p1p1_to_p2(r,&t);
+ $r = self::ge_p1p1_to_p2($t);
+ }
+ return $r;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $a
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $p
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedOperand
+ */
+ public static function ge_scalarmult($a, $p)
+ {
+ $e = array_fill(0, 64, 0);
+
+ /** @var ParagonIE_Sodium_Core_Curve25519_Ge_Cached[] $pi */
+ $pi = array();
+
+ // ge25519_p3_to_cached(&pi[1 - 1], p); /* p */
+ $pi[0] = self::ge_p3_to_cached($p);
+
+ // ge25519_p3_dbl(&t2, p);
+ // ge25519_p1p1_to_p3(&p2, &t2);
+ // ge25519_p3_to_cached(&pi[2 - 1], &p2); /* 2p = 2*p */
+ $t2 = self::ge_p3_dbl($p);
+ $p2 = self::ge_p1p1_to_p3($t2);
+ $pi[1] = self::ge_p3_to_cached($p2);
+
+ // ge25519_add_cached(&t3, p, &pi[2 - 1]);
+ // ge25519_p1p1_to_p3(&p3, &t3);
+ // ge25519_p3_to_cached(&pi[3 - 1], &p3); /* 3p = 2p+p */
+ $t3 = self::ge_add($p, $pi[1]);
+ $p3 = self::ge_p1p1_to_p3($t3);
+ $pi[2] = self::ge_p3_to_cached($p3);
+
+ // ge25519_p3_dbl(&t4, &p2);
+ // ge25519_p1p1_to_p3(&p4, &t4);
+ // ge25519_p3_to_cached(&pi[4 - 1], &p4); /* 4p = 2*2p */
+ $t4 = self::ge_p3_dbl($p2);
+ $p4 = self::ge_p1p1_to_p3($t4);
+ $pi[3] = self::ge_p3_to_cached($p4);
+
+ // ge25519_add_cached(&t5, p, &pi[4 - 1]);
+ // ge25519_p1p1_to_p3(&p5, &t5);
+ // ge25519_p3_to_cached(&pi[5 - 1], &p5); /* 5p = 4p+p */
+ $t5 = self::ge_add($p, $pi[3]);
+ $p5 = self::ge_p1p1_to_p3($t5);
+ $pi[4] = self::ge_p3_to_cached($p5);
+
+ // ge25519_p3_dbl(&t6, &p3);
+ // ge25519_p1p1_to_p3(&p6, &t6);
+ // ge25519_p3_to_cached(&pi[6 - 1], &p6); /* 6p = 2*3p */
+ $t6 = self::ge_p3_dbl($p3);
+ $p6 = self::ge_p1p1_to_p3($t6);
+ $pi[5] = self::ge_p3_to_cached($p6);
+
+ // ge25519_add_cached(&t7, p, &pi[6 - 1]);
+ // ge25519_p1p1_to_p3(&p7, &t7);
+ // ge25519_p3_to_cached(&pi[7 - 1], &p7); /* 7p = 6p+p */
+ $t7 = self::ge_add($p, $pi[5]);
+ $p7 = self::ge_p1p1_to_p3($t7);
+ $pi[6] = self::ge_p3_to_cached($p7);
+
+ // ge25519_p3_dbl(&t8, &p4);
+ // ge25519_p1p1_to_p3(&p8, &t8);
+ // ge25519_p3_to_cached(&pi[8 - 1], &p8); /* 8p = 2*4p */
+ $t8 = self::ge_p3_dbl($p4);
+ $p8 = self::ge_p1p1_to_p3($t8);
+ $pi[7] = self::ge_p3_to_cached($p8);
+
+
+ // for (i = 0; i < 32; ++i) {
+ // e[2 * i + 0] = (a[i] >> 0) & 15;
+ // e[2 * i + 1] = (a[i] >> 4) & 15;
+ // }
+ for ($i = 0; $i < 32; ++$i) {
+ $e[($i << 1) ] = self::chrToInt($a[$i]) & 15;
+ $e[($i << 1) + 1] = (self::chrToInt($a[$i]) >> 4) & 15;
+ }
+ // /* each e[i] is between 0 and 15 */
+ // /* e[63] is between 0 and 7 */
+
+ // carry = 0;
+ // for (i = 0; i < 63; ++i) {
+ // e[i] += carry;
+ // carry = e[i] + 8;
+ // carry >>= 4;
+ // e[i] -= carry * ((signed char) 1 << 4);
+ // }
+ $carry = 0;
+ for ($i = 0; $i < 63; ++$i) {
+ $e[$i] += $carry;
+ $carry = $e[$i] + 8;
+ $carry >>= 4;
+ $e[$i] -= $carry << 4;
+ }
+ // e[63] += carry;
+ // /* each e[i] is between -8 and 8 */
+ $e[63] += $carry;
+
+ // ge25519_p3_0(h);
+ $h = self::ge_p3_0();
+
+ // for (i = 63; i != 0; i--) {
+ for ($i = 63; $i != 0; --$i) {
+ // ge25519_cmov8_cached(&t, pi, e[i]);
+ $t = self::ge_cmov8_cached($pi, $e[$i]);
+ // ge25519_add_cached(&r, h, &t);
+ $r = self::ge_add($h, $t);
+
+ // ge25519_p1p1_to_p2(&s, &r);
+ // ge25519_p2_dbl(&r, &s);
+ // ge25519_p1p1_to_p2(&s, &r);
+ // ge25519_p2_dbl(&r, &s);
+ // ge25519_p1p1_to_p2(&s, &r);
+ // ge25519_p2_dbl(&r, &s);
+ // ge25519_p1p1_to_p2(&s, &r);
+ // ge25519_p2_dbl(&r, &s);
+ $s = self::ge_p1p1_to_p2($r);
+ $r = self::ge_p2_dbl($s);
+ $s = self::ge_p1p1_to_p2($r);
+ $r = self::ge_p2_dbl($s);
+ $s = self::ge_p1p1_to_p2($r);
+ $r = self::ge_p2_dbl($s);
+ $s = self::ge_p1p1_to_p2($r);
+ $r = self::ge_p2_dbl($s);
+
+ // ge25519_p1p1_to_p3(h, &r); /* *16 */
+ $h = self::ge_p1p1_to_p3($r); /* *16 */
+ }
+
+ // ge25519_cmov8_cached(&t, pi, e[i]);
+ // ge25519_add_cached(&r, h, &t);
+ // ge25519_p1p1_to_p3(h, &r);
+ $t = self::ge_cmov8_cached($pi, $e[0]);
+ $r = self::ge_add($h, $t);
+ return self::ge_p1p1_to_p3($r);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $a
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedOperand
+ */
+ public static function ge_scalarmult_base($a)
+ {
+ /** @var array<int, int> $e */
+ $e = array();
+ $r = new ParagonIE_Sodium_Core_Curve25519_Ge_P1p1();
+
+ for ($i = 0; $i < 32; ++$i) {
+ $dbl = (int) $i << 1;
+ $e[$dbl] = (int) self::chrToInt($a[$i]) & 15;
+ $e[$dbl + 1] = (int) (self::chrToInt($a[$i]) >> 4) & 15;
+ }
+
+ $carry = 0;
+ for ($i = 0; $i < 63; ++$i) {
+ $e[$i] += $carry;
+ $carry = $e[$i] + 8;
+ $carry >>= 4;
+ $e[$i] -= $carry << 4;
+ }
+ $e[63] += (int) $carry;
+
+ $h = self::ge_p3_0();
+
+ for ($i = 1; $i < 64; $i += 2) {
+ $t = self::ge_select((int) floor($i / 2), (int) $e[$i]);
+ $r = self::ge_madd($r, $h, $t);
+ $h = self::ge_p1p1_to_p3($r);
+ }
+
+ $r = self::ge_p3_dbl($h);
+
+ $s = self::ge_p1p1_to_p2($r);
+ $r = self::ge_p2_dbl($s);
+ $s = self::ge_p1p1_to_p2($r);
+ $r = self::ge_p2_dbl($s);
+ $s = self::ge_p1p1_to_p2($r);
+ $r = self::ge_p2_dbl($s);
+
+ $h = self::ge_p1p1_to_p3($r);
+
+ for ($i = 0; $i < 64; $i += 2) {
+ $t = self::ge_select($i >> 1, (int) $e[$i]);
+ $r = self::ge_madd($r, $h, $t);
+ $h = self::ge_p1p1_to_p3($r);
+ }
+ return $h;
+ }
+
+ /**
+ * Calculates (ab + c) mod l
+ * where l = 2^252 + 27742317777372353535851937790883648493
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $a
+ * @param string $b
+ * @param string $c
+ * @return string
+ * @throws TypeError
+ */
+ public static function sc_muladd($a, $b, $c)
+ {
+ $a0 = 2097151 & self::load_3(self::substr($a, 0, 3));
+ $a1 = 2097151 & (self::load_4(self::substr($a, 2, 4)) >> 5);
+ $a2 = 2097151 & (self::load_3(self::substr($a, 5, 3)) >> 2);
+ $a3 = 2097151 & (self::load_4(self::substr($a, 7, 4)) >> 7);
+ $a4 = 2097151 & (self::load_4(self::substr($a, 10, 4)) >> 4);
+ $a5 = 2097151 & (self::load_3(self::substr($a, 13, 3)) >> 1);
+ $a6 = 2097151 & (self::load_4(self::substr($a, 15, 4)) >> 6);
+ $a7 = 2097151 & (self::load_3(self::substr($a, 18, 3)) >> 3);
+ $a8 = 2097151 & self::load_3(self::substr($a, 21, 3));
+ $a9 = 2097151 & (self::load_4(self::substr($a, 23, 4)) >> 5);
+ $a10 = 2097151 & (self::load_3(self::substr($a, 26, 3)) >> 2);
+ $a11 = (self::load_4(self::substr($a, 28, 4)) >> 7);
+
+ $b0 = 2097151 & self::load_3(self::substr($b, 0, 3));
+ $b1 = 2097151 & (self::load_4(self::substr($b, 2, 4)) >> 5);
+ $b2 = 2097151 & (self::load_3(self::substr($b, 5, 3)) >> 2);
+ $b3 = 2097151 & (self::load_4(self::substr($b, 7, 4)) >> 7);
+ $b4 = 2097151 & (self::load_4(self::substr($b, 10, 4)) >> 4);
+ $b5 = 2097151 & (self::load_3(self::substr($b, 13, 3)) >> 1);
+ $b6 = 2097151 & (self::load_4(self::substr($b, 15, 4)) >> 6);
+ $b7 = 2097151 & (self::load_3(self::substr($b, 18, 3)) >> 3);
+ $b8 = 2097151 & self::load_3(self::substr($b, 21, 3));
+ $b9 = 2097151 & (self::load_4(self::substr($b, 23, 4)) >> 5);
+ $b10 = 2097151 & (self::load_3(self::substr($b, 26, 3)) >> 2);
+ $b11 = (self::load_4(self::substr($b, 28, 4)) >> 7);
+
+ $c0 = 2097151 & self::load_3(self::substr($c, 0, 3));
+ $c1 = 2097151 & (self::load_4(self::substr($c, 2, 4)) >> 5);
+ $c2 = 2097151 & (self::load_3(self::substr($c, 5, 3)) >> 2);
+ $c3 = 2097151 & (self::load_4(self::substr($c, 7, 4)) >> 7);
+ $c4 = 2097151 & (self::load_4(self::substr($c, 10, 4)) >> 4);
+ $c5 = 2097151 & (self::load_3(self::substr($c, 13, 3)) >> 1);
+ $c6 = 2097151 & (self::load_4(self::substr($c, 15, 4)) >> 6);
+ $c7 = 2097151 & (self::load_3(self::substr($c, 18, 3)) >> 3);
+ $c8 = 2097151 & self::load_3(self::substr($c, 21, 3));
+ $c9 = 2097151 & (self::load_4(self::substr($c, 23, 4)) >> 5);
+ $c10 = 2097151 & (self::load_3(self::substr($c, 26, 3)) >> 2);
+ $c11 = (self::load_4(self::substr($c, 28, 4)) >> 7);
+
+ /* Can't really avoid the pyramid here: */
+ $s0 = $c0 + self::mul($a0, $b0, 24);
+ $s1 = $c1 + self::mul($a0, $b1, 24) + self::mul($a1, $b0, 24);
+ $s2 = $c2 + self::mul($a0, $b2, 24) + self::mul($a1, $b1, 24) + self::mul($a2, $b0, 24);
+ $s3 = $c3 + self::mul($a0, $b3, 24) + self::mul($a1, $b2, 24) + self::mul($a2, $b1, 24) + self::mul($a3, $b0, 24);
+ $s4 = $c4 + self::mul($a0, $b4, 24) + self::mul($a1, $b3, 24) + self::mul($a2, $b2, 24) + self::mul($a3, $b1, 24) +
+ self::mul($a4, $b0, 24);
+ $s5 = $c5 + self::mul($a0, $b5, 24) + self::mul($a1, $b4, 24) + self::mul($a2, $b3, 24) + self::mul($a3, $b2, 24) +
+ self::mul($a4, $b1, 24) + self::mul($a5, $b0, 24);
+ $s6 = $c6 + self::mul($a0, $b6, 24) + self::mul($a1, $b5, 24) + self::mul($a2, $b4, 24) + self::mul($a3, $b3, 24) +
+ self::mul($a4, $b2, 24) + self::mul($a5, $b1, 24) + self::mul($a6, $b0, 24);
+ $s7 = $c7 + self::mul($a0, $b7, 24) + self::mul($a1, $b6, 24) + self::mul($a2, $b5, 24) + self::mul($a3, $b4, 24) +
+ self::mul($a4, $b3, 24) + self::mul($a5, $b2, 24) + self::mul($a6, $b1, 24) + self::mul($a7, $b0, 24);
+ $s8 = $c8 + self::mul($a0, $b8, 24) + self::mul($a1, $b7, 24) + self::mul($a2, $b6, 24) + self::mul($a3, $b5, 24) +
+ self::mul($a4, $b4, 24) + self::mul($a5, $b3, 24) + self::mul($a6, $b2, 24) + self::mul($a7, $b1, 24) +
+ self::mul($a8, $b0, 24);
+ $s9 = $c9 + self::mul($a0, $b9, 24) + self::mul($a1, $b8, 24) + self::mul($a2, $b7, 24) + self::mul($a3, $b6, 24) +
+ self::mul($a4, $b5, 24) + self::mul($a5, $b4, 24) + self::mul($a6, $b3, 24) + self::mul($a7, $b2, 24) +
+ self::mul($a8, $b1, 24) + self::mul($a9, $b0, 24);
+ $s10 = $c10 + self::mul($a0, $b10, 24) + self::mul($a1, $b9, 24) + self::mul($a2, $b8, 24) + self::mul($a3, $b7, 24) +
+ self::mul($a4, $b6, 24) + self::mul($a5, $b5, 24) + self::mul($a6, $b4, 24) + self::mul($a7, $b3, 24) +
+ self::mul($a8, $b2, 24) + self::mul($a9, $b1, 24) + self::mul($a10, $b0, 24);
+ $s11 = $c11 + self::mul($a0, $b11, 24) + self::mul($a1, $b10, 24) + self::mul($a2, $b9, 24) + self::mul($a3, $b8, 24) +
+ self::mul($a4, $b7, 24) + self::mul($a5, $b6, 24) + self::mul($a6, $b5, 24) + self::mul($a7, $b4, 24) +
+ self::mul($a8, $b3, 24) + self::mul($a9, $b2, 24) + self::mul($a10, $b1, 24) + self::mul($a11, $b0, 24);
+ $s12 = self::mul($a1, $b11, 24) + self::mul($a2, $b10, 24) + self::mul($a3, $b9, 24) + self::mul($a4, $b8, 24) +
+ self::mul($a5, $b7, 24) + self::mul($a6, $b6, 24) + self::mul($a7, $b5, 24) + self::mul($a8, $b4, 24) +
+ self::mul($a9, $b3, 24) + self::mul($a10, $b2, 24) + self::mul($a11, $b1, 24);
+ $s13 = self::mul($a2, $b11, 24) + self::mul($a3, $b10, 24) + self::mul($a4, $b9, 24) + self::mul($a5, $b8, 24) +
+ self::mul($a6, $b7, 24) + self::mul($a7, $b6, 24) + self::mul($a8, $b5, 24) + self::mul($a9, $b4, 24) +
+ self::mul($a10, $b3, 24) + self::mul($a11, $b2, 24);
+ $s14 = self::mul($a3, $b11, 24) + self::mul($a4, $b10, 24) + self::mul($a5, $b9, 24) + self::mul($a6, $b8, 24) +
+ self::mul($a7, $b7, 24) + self::mul($a8, $b6, 24) + self::mul($a9, $b5, 24) + self::mul($a10, $b4, 24) +
+ self::mul($a11, $b3, 24);
+ $s15 = self::mul($a4, $b11, 24) + self::mul($a5, $b10, 24) + self::mul($a6, $b9, 24) + self::mul($a7, $b8, 24) +
+ self::mul($a8, $b7, 24) + self::mul($a9, $b6, 24) + self::mul($a10, $b5, 24) + self::mul($a11, $b4, 24);
+ $s16 = self::mul($a5, $b11, 24) + self::mul($a6, $b10, 24) + self::mul($a7, $b9, 24) + self::mul($a8, $b8, 24) +
+ self::mul($a9, $b7, 24) + self::mul($a10, $b6, 24) + self::mul($a11, $b5, 24);
+ $s17 = self::mul($a6, $b11, 24) + self::mul($a7, $b10, 24) + self::mul($a8, $b9, 24) + self::mul($a9, $b8, 24) +
+ self::mul($a10, $b7, 24) + self::mul($a11, $b6, 24);
+ $s18 = self::mul($a7, $b11, 24) + self::mul($a8, $b10, 24) + self::mul($a9, $b9, 24) + self::mul($a10, $b8, 24) +
+ self::mul($a11, $b7, 24);
+ $s19 = self::mul($a8, $b11, 24) + self::mul($a9, $b10, 24) + self::mul($a10, $b9, 24) + self::mul($a11, $b8, 24);
+ $s20 = self::mul($a9, $b11, 24) + self::mul($a10, $b10, 24) + self::mul($a11, $b9, 24);
+ $s21 = self::mul($a10, $b11, 24) + self::mul($a11, $b10, 24);
+ $s22 = self::mul($a11, $b11, 24);
+ $s23 = 0;
+
+ $carry0 = ($s0 + (1 << 20)) >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ $carry2 = ($s2 + (1 << 20)) >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ $carry4 = ($s4 + (1 << 20)) >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ $carry12 = ($s12 + (1 << 20)) >> 21;
+ $s13 += $carry12;
+ $s12 -= $carry12 << 21;
+ $carry14 = ($s14 + (1 << 20)) >> 21;
+ $s15 += $carry14;
+ $s14 -= $carry14 << 21;
+ $carry16 = ($s16 + (1 << 20)) >> 21;
+ $s17 += $carry16;
+ $s16 -= $carry16 << 21;
+ $carry18 = ($s18 + (1 << 20)) >> 21;
+ $s19 += $carry18;
+ $s18 -= $carry18 << 21;
+ $carry20 = ($s20 + (1 << 20)) >> 21;
+ $s21 += $carry20;
+ $s20 -= $carry20 << 21;
+ $carry22 = ($s22 + (1 << 20)) >> 21;
+ $s23 += $carry22;
+ $s22 -= $carry22 << 21;
+
+ $carry1 = ($s1 + (1 << 20)) >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ $carry3 = ($s3 + (1 << 20)) >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ $carry5 = ($s5 + (1 << 20)) >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+ $carry13 = ($s13 + (1 << 20)) >> 21;
+ $s14 += $carry13;
+ $s13 -= $carry13 << 21;
+ $carry15 = ($s15 + (1 << 20)) >> 21;
+ $s16 += $carry15;
+ $s15 -= $carry15 << 21;
+ $carry17 = ($s17 + (1 << 20)) >> 21;
+ $s18 += $carry17;
+ $s17 -= $carry17 << 21;
+ $carry19 = ($s19 + (1 << 20)) >> 21;
+ $s20 += $carry19;
+ $s19 -= $carry19 << 21;
+ $carry21 = ($s21 + (1 << 20)) >> 21;
+ $s22 += $carry21;
+ $s21 -= $carry21 << 21;
+
+ $s11 += self::mul($s23, 666643, 20);
+ $s12 += self::mul($s23, 470296, 19);
+ $s13 += self::mul($s23, 654183, 20);
+ $s14 -= self::mul($s23, 997805, 20);
+ $s15 += self::mul($s23, 136657, 18);
+ $s16 -= self::mul($s23, 683901, 20);
+
+ $s10 += self::mul($s22, 666643, 20);
+ $s11 += self::mul($s22, 470296, 19);
+ $s12 += self::mul($s22, 654183, 20);
+ $s13 -= self::mul($s22, 997805, 20);
+ $s14 += self::mul($s22, 136657, 18);
+ $s15 -= self::mul($s22, 683901, 20);
+
+ $s9 += self::mul($s21, 666643, 20);
+ $s10 += self::mul($s21, 470296, 19);
+ $s11 += self::mul($s21, 654183, 20);
+ $s12 -= self::mul($s21, 997805, 20);
+ $s13 += self::mul($s21, 136657, 18);
+ $s14 -= self::mul($s21, 683901, 20);
+
+ $s8 += self::mul($s20, 666643, 20);
+ $s9 += self::mul($s20, 470296, 19);
+ $s10 += self::mul($s20, 654183, 20);
+ $s11 -= self::mul($s20, 997805, 20);
+ $s12 += self::mul($s20, 136657, 18);
+ $s13 -= self::mul($s20, 683901, 20);
+
+ $s7 += self::mul($s19, 666643, 20);
+ $s8 += self::mul($s19, 470296, 19);
+ $s9 += self::mul($s19, 654183, 20);
+ $s10 -= self::mul($s19, 997805, 20);
+ $s11 += self::mul($s19, 136657, 18);
+ $s12 -= self::mul($s19, 683901, 20);
+
+ $s6 += self::mul($s18, 666643, 20);
+ $s7 += self::mul($s18, 470296, 19);
+ $s8 += self::mul($s18, 654183, 20);
+ $s9 -= self::mul($s18, 997805, 20);
+ $s10 += self::mul($s18, 136657, 18);
+ $s11 -= self::mul($s18, 683901, 20);
+
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ $carry12 = ($s12 + (1 << 20)) >> 21;
+ $s13 += $carry12;
+ $s12 -= $carry12 << 21;
+ $carry14 = ($s14 + (1 << 20)) >> 21;
+ $s15 += $carry14;
+ $s14 -= $carry14 << 21;
+ $carry16 = ($s16 + (1 << 20)) >> 21;
+ $s17 += $carry16;
+ $s16 -= $carry16 << 21;
+
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+ $carry13 = ($s13 + (1 << 20)) >> 21;
+ $s14 += $carry13;
+ $s13 -= $carry13 << 21;
+ $carry15 = ($s15 + (1 << 20)) >> 21;
+ $s16 += $carry15;
+ $s15 -= $carry15 << 21;
+
+ $s5 += self::mul($s17, 666643, 20);
+ $s6 += self::mul($s17, 470296, 19);
+ $s7 += self::mul($s17, 654183, 20);
+ $s8 -= self::mul($s17, 997805, 20);
+ $s9 += self::mul($s17, 136657, 18);
+ $s10 -= self::mul($s17, 683901, 20);
+
+ $s4 += self::mul($s16, 666643, 20);
+ $s5 += self::mul($s16, 470296, 19);
+ $s6 += self::mul($s16, 654183, 20);
+ $s7 -= self::mul($s16, 997805, 20);
+ $s8 += self::mul($s16, 136657, 18);
+ $s9 -= self::mul($s16, 683901, 20);
+
+ $s3 += self::mul($s15, 666643, 20);
+ $s4 += self::mul($s15, 470296, 19);
+ $s5 += self::mul($s15, 654183, 20);
+ $s6 -= self::mul($s15, 997805, 20);
+ $s7 += self::mul($s15, 136657, 18);
+ $s8 -= self::mul($s15, 683901, 20);
+
+ $s2 += self::mul($s14, 666643, 20);
+ $s3 += self::mul($s14, 470296, 19);
+ $s4 += self::mul($s14, 654183, 20);
+ $s5 -= self::mul($s14, 997805, 20);
+ $s6 += self::mul($s14, 136657, 18);
+ $s7 -= self::mul($s14, 683901, 20);
+
+ $s1 += self::mul($s13, 666643, 20);
+ $s2 += self::mul($s13, 470296, 19);
+ $s3 += self::mul($s13, 654183, 20);
+ $s4 -= self::mul($s13, 997805, 20);
+ $s5 += self::mul($s13, 136657, 18);
+ $s6 -= self::mul($s13, 683901, 20);
+
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+ $s12 = 0;
+
+ $carry0 = ($s0 + (1 << 20)) >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ $carry2 = ($s2 + (1 << 20)) >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ $carry4 = ($s4 + (1 << 20)) >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+
+ $carry1 = ($s1 + (1 << 20)) >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ $carry3 = ($s3 + (1 << 20)) >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ $carry5 = ($s5 + (1 << 20)) >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+ $s12 = 0;
+
+ $carry0 = $s0 >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ $carry1 = $s1 >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ $carry2 = $s2 >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ $carry3 = $s3 >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ $carry4 = $s4 >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ $carry5 = $s5 >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ $carry6 = $s6 >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry7 = $s7 >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry8 = $s8 >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry9 = $s9 >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry10 = $s10 >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ $carry11 = $s11 >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+
+ $carry0 = $s0 >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ $carry1 = $s1 >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ $carry2 = $s2 >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ $carry3 = $s3 >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ $carry4 = $s4 >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ $carry5 = $s5 >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ $carry6 = $s6 >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry7 = $s7 >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry8 = $s8 >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry9 = $s9 >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry10 = $s10 >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+
+ /**
+ * @var array<int, int>
+ */
+ $arr = array(
+ (int) (0xff & ($s0 >> 0)),
+ (int) (0xff & ($s0 >> 8)),
+ (int) (0xff & (($s0 >> 16) | $s1 << 5)),
+ (int) (0xff & ($s1 >> 3)),
+ (int) (0xff & ($s1 >> 11)),
+ (int) (0xff & (($s1 >> 19) | $s2 << 2)),
+ (int) (0xff & ($s2 >> 6)),
+ (int) (0xff & (($s2 >> 14) | $s3 << 7)),
+ (int) (0xff & ($s3 >> 1)),
+ (int) (0xff & ($s3 >> 9)),
+ (int) (0xff & (($s3 >> 17) | $s4 << 4)),
+ (int) (0xff & ($s4 >> 4)),
+ (int) (0xff & ($s4 >> 12)),
+ (int) (0xff & (($s4 >> 20) | $s5 << 1)),
+ (int) (0xff & ($s5 >> 7)),
+ (int) (0xff & (($s5 >> 15) | $s6 << 6)),
+ (int) (0xff & ($s6 >> 2)),
+ (int) (0xff & ($s6 >> 10)),
+ (int) (0xff & (($s6 >> 18) | $s7 << 3)),
+ (int) (0xff & ($s7 >> 5)),
+ (int) (0xff & ($s7 >> 13)),
+ (int) (0xff & ($s8 >> 0)),
+ (int) (0xff & ($s8 >> 8)),
+ (int) (0xff & (($s8 >> 16) | $s9 << 5)),
+ (int) (0xff & ($s9 >> 3)),
+ (int) (0xff & ($s9 >> 11)),
+ (int) (0xff & (($s9 >> 19) | $s10 << 2)),
+ (int) (0xff & ($s10 >> 6)),
+ (int) (0xff & (($s10 >> 14) | $s11 << 7)),
+ (int) (0xff & ($s11 >> 1)),
+ (int) (0xff & ($s11 >> 9)),
+ 0xff & ($s11 >> 17)
+ );
+ return self::intArrayToString($arr);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $s
+ * @return string
+ * @throws TypeError
+ */
+ public static function sc_reduce($s)
+ {
+ $s0 = 2097151 & self::load_3(self::substr($s, 0, 3));
+ $s1 = 2097151 & (self::load_4(self::substr($s, 2, 4)) >> 5);
+ $s2 = 2097151 & (self::load_3(self::substr($s, 5, 3)) >> 2);
+ $s3 = 2097151 & (self::load_4(self::substr($s, 7, 4)) >> 7);
+ $s4 = 2097151 & (self::load_4(self::substr($s, 10, 4)) >> 4);
+ $s5 = 2097151 & (self::load_3(self::substr($s, 13, 3)) >> 1);
+ $s6 = 2097151 & (self::load_4(self::substr($s, 15, 4)) >> 6);
+ $s7 = 2097151 & (self::load_3(self::substr($s, 18, 4)) >> 3);
+ $s8 = 2097151 & self::load_3(self::substr($s, 21, 3));
+ $s9 = 2097151 & (self::load_4(self::substr($s, 23, 4)) >> 5);
+ $s10 = 2097151 & (self::load_3(self::substr($s, 26, 3)) >> 2);
+ $s11 = 2097151 & (self::load_4(self::substr($s, 28, 4)) >> 7);
+ $s12 = 2097151 & (self::load_4(self::substr($s, 31, 4)) >> 4);
+ $s13 = 2097151 & (self::load_3(self::substr($s, 34, 3)) >> 1);
+ $s14 = 2097151 & (self::load_4(self::substr($s, 36, 4)) >> 6);
+ $s15 = 2097151 & (self::load_3(self::substr($s, 39, 4)) >> 3);
+ $s16 = 2097151 & self::load_3(self::substr($s, 42, 3));
+ $s17 = 2097151 & (self::load_4(self::substr($s, 44, 4)) >> 5);
+ $s18 = 2097151 & (self::load_3(self::substr($s, 47, 3)) >> 2);
+ $s19 = 2097151 & (self::load_4(self::substr($s, 49, 4)) >> 7);
+ $s20 = 2097151 & (self::load_4(self::substr($s, 52, 4)) >> 4);
+ $s21 = 2097151 & (self::load_3(self::substr($s, 55, 3)) >> 1);
+ $s22 = 2097151 & (self::load_4(self::substr($s, 57, 4)) >> 6);
+ $s23 = 0x1fffffff & (self::load_4(self::substr($s, 60, 4)) >> 3);
+
+ $s11 += self::mul($s23, 666643, 20);
+ $s12 += self::mul($s23, 470296, 19);
+ $s13 += self::mul($s23, 654183, 20);
+ $s14 -= self::mul($s23, 997805, 20);
+ $s15 += self::mul($s23, 136657, 18);
+ $s16 -= self::mul($s23, 683901, 20);
+
+ $s10 += self::mul($s22, 666643, 20);
+ $s11 += self::mul($s22, 470296, 19);
+ $s12 += self::mul($s22, 654183, 20);
+ $s13 -= self::mul($s22, 997805, 20);
+ $s14 += self::mul($s22, 136657, 18);
+ $s15 -= self::mul($s22, 683901, 20);
+
+ $s9 += self::mul($s21, 666643, 20);
+ $s10 += self::mul($s21, 470296, 19);
+ $s11 += self::mul($s21, 654183, 20);
+ $s12 -= self::mul($s21, 997805, 20);
+ $s13 += self::mul($s21, 136657, 18);
+ $s14 -= self::mul($s21, 683901, 20);
+
+ $s8 += self::mul($s20, 666643, 20);
+ $s9 += self::mul($s20, 470296, 19);
+ $s10 += self::mul($s20, 654183, 20);
+ $s11 -= self::mul($s20, 997805, 20);
+ $s12 += self::mul($s20, 136657, 18);
+ $s13 -= self::mul($s20, 683901, 20);
+
+ $s7 += self::mul($s19, 666643, 20);
+ $s8 += self::mul($s19, 470296, 19);
+ $s9 += self::mul($s19, 654183, 20);
+ $s10 -= self::mul($s19, 997805, 20);
+ $s11 += self::mul($s19, 136657, 18);
+ $s12 -= self::mul($s19, 683901, 20);
+
+ $s6 += self::mul($s18, 666643, 20);
+ $s7 += self::mul($s18, 470296, 19);
+ $s8 += self::mul($s18, 654183, 20);
+ $s9 -= self::mul($s18, 997805, 20);
+ $s10 += self::mul($s18, 136657, 18);
+ $s11 -= self::mul($s18, 683901, 20);
+
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ $carry12 = ($s12 + (1 << 20)) >> 21;
+ $s13 += $carry12;
+ $s12 -= $carry12 << 21;
+ $carry14 = ($s14 + (1 << 20)) >> 21;
+ $s15 += $carry14;
+ $s14 -= $carry14 << 21;
+ $carry16 = ($s16 + (1 << 20)) >> 21;
+ $s17 += $carry16;
+ $s16 -= $carry16 << 21;
+
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+ $carry13 = ($s13 + (1 << 20)) >> 21;
+ $s14 += $carry13;
+ $s13 -= $carry13 << 21;
+ $carry15 = ($s15 + (1 << 20)) >> 21;
+ $s16 += $carry15;
+ $s15 -= $carry15 << 21;
+
+ $s5 += self::mul($s17, 666643, 20);
+ $s6 += self::mul($s17, 470296, 19);
+ $s7 += self::mul($s17, 654183, 20);
+ $s8 -= self::mul($s17, 997805, 20);
+ $s9 += self::mul($s17, 136657, 18);
+ $s10 -= self::mul($s17, 683901, 20);
+
+ $s4 += self::mul($s16, 666643, 20);
+ $s5 += self::mul($s16, 470296, 19);
+ $s6 += self::mul($s16, 654183, 20);
+ $s7 -= self::mul($s16, 997805, 20);
+ $s8 += self::mul($s16, 136657, 18);
+ $s9 -= self::mul($s16, 683901, 20);
+
+ $s3 += self::mul($s15, 666643, 20);
+ $s4 += self::mul($s15, 470296, 19);
+ $s5 += self::mul($s15, 654183, 20);
+ $s6 -= self::mul($s15, 997805, 20);
+ $s7 += self::mul($s15, 136657, 18);
+ $s8 -= self::mul($s15, 683901, 20);
+
+ $s2 += self::mul($s14, 666643, 20);
+ $s3 += self::mul($s14, 470296, 19);
+ $s4 += self::mul($s14, 654183, 20);
+ $s5 -= self::mul($s14, 997805, 20);
+ $s6 += self::mul($s14, 136657, 18);
+ $s7 -= self::mul($s14, 683901, 20);
+
+ $s1 += self::mul($s13, 666643, 20);
+ $s2 += self::mul($s13, 470296, 19);
+ $s3 += self::mul($s13, 654183, 20);
+ $s4 -= self::mul($s13, 997805, 20);
+ $s5 += self::mul($s13, 136657, 18);
+ $s6 -= self::mul($s13, 683901, 20);
+
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+ $s12 = 0;
+
+ $carry0 = ($s0 + (1 << 20)) >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ $carry2 = ($s2 + (1 << 20)) >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ $carry4 = ($s4 + (1 << 20)) >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+
+ $carry1 = ($s1 + (1 << 20)) >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ $carry3 = ($s3 + (1 << 20)) >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ $carry5 = ($s5 + (1 << 20)) >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+ $s12 = 0;
+
+ $carry0 = $s0 >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ $carry1 = $s1 >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ $carry2 = $s2 >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ $carry3 = $s3 >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ $carry4 = $s4 >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ $carry5 = $s5 >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ $carry6 = $s6 >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry7 = $s7 >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry8 = $s8 >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry9 = $s9 >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry10 = $s10 >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ $carry11 = $s11 >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+
+ $carry0 = $s0 >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ $carry1 = $s1 >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ $carry2 = $s2 >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ $carry3 = $s3 >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ $carry4 = $s4 >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ $carry5 = $s5 >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ $carry6 = $s6 >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ $carry7 = $s7 >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ $carry8 = $s8 >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ $carry9 = $s9 >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ $carry10 = $s10 >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+
+ /**
+ * @var array<int, int>
+ */
+ $arr = array(
+ (int) ($s0 >> 0),
+ (int) ($s0 >> 8),
+ (int) (($s0 >> 16) | $s1 << 5),
+ (int) ($s1 >> 3),
+ (int) ($s1 >> 11),
+ (int) (($s1 >> 19) | $s2 << 2),
+ (int) ($s2 >> 6),
+ (int) (($s2 >> 14) | $s3 << 7),
+ (int) ($s3 >> 1),
+ (int) ($s3 >> 9),
+ (int) (($s3 >> 17) | $s4 << 4),
+ (int) ($s4 >> 4),
+ (int) ($s4 >> 12),
+ (int) (($s4 >> 20) | $s5 << 1),
+ (int) ($s5 >> 7),
+ (int) (($s5 >> 15) | $s6 << 6),
+ (int) ($s6 >> 2),
+ (int) ($s6 >> 10),
+ (int) (($s6 >> 18) | $s7 << 3),
+ (int) ($s7 >> 5),
+ (int) ($s7 >> 13),
+ (int) ($s8 >> 0),
+ (int) ($s8 >> 8),
+ (int) (($s8 >> 16) | $s9 << 5),
+ (int) ($s9 >> 3),
+ (int) ($s9 >> 11),
+ (int) (($s9 >> 19) | $s10 << 2),
+ (int) ($s10 >> 6),
+ (int) (($s10 >> 14) | $s11 << 7),
+ (int) ($s11 >> 1),
+ (int) ($s11 >> 9),
+ (int) $s11 >> 17
+ );
+ return self::intArrayToString($arr);
+ }
+
+ /**
+ * multiply by the order of the main subgroup l = 2^252+27742317777372353535851937790883648493
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
+ */
+ public static function ge_mul_l(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A)
+ {
+ $aslide = array(
+ 13, 0, 0, 0, 0, -1, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 0, -5, 0, 0, 0,
+ 0, 0, 0, -3, 0, 0, 0, 0, -13, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 3, 0,
+ 0, 0, 0, -13, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0, 11, 0, 0, 0,
+ 0, 0, 11, 0, 0, 0, 0, -13, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, 0, 0, -1,
+ 0, 0, 0, 0, 3, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0,
+ 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 7, 0, 0, 0, 0, 5, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
+ );
+
+ /** @var array<int, ParagonIE_Sodium_Core_Curve25519_Ge_Cached> $Ai size 8 */
+ $Ai = array();
+
+ # ge_p3_to_cached(&Ai[0], A);
+ $Ai[0] = self::ge_p3_to_cached($A);
+ # ge_p3_dbl(&t, A);
+ $t = self::ge_p3_dbl($A);
+ # ge_p1p1_to_p3(&A2, &t);
+ $A2 = self::ge_p1p1_to_p3($t);
+
+ for ($i = 1; $i < 8; ++$i) {
+ # ge_add(&t, &A2, &Ai[0]);
+ $t = self::ge_add($A2, $Ai[$i - 1]);
+ # ge_p1p1_to_p3(&u, &t);
+ $u = self::ge_p1p1_to_p3($t);
+ # ge_p3_to_cached(&Ai[i], &u);
+ $Ai[$i] = self::ge_p3_to_cached($u);
+ }
+
+ $r = self::ge_p3_0();
+ for ($i = 252; $i >= 0; --$i) {
+ $t = self::ge_p3_dbl($r);
+ if ($aslide[$i] > 0) {
+ # ge_p1p1_to_p3(&u, &t);
+ $u = self::ge_p1p1_to_p3($t);
+ # ge_add(&t, &u, &Ai[aslide[i] / 2]);
+ $t = self::ge_add($u, $Ai[(int)($aslide[$i] / 2)]);
+ } elseif ($aslide[$i] < 0) {
+ # ge_p1p1_to_p3(&u, &t);
+ $u = self::ge_p1p1_to_p3($t);
+ # ge_sub(&t, &u, &Ai[(-aslide[i]) / 2]);
+ $t = self::ge_sub($u, $Ai[(int)(-$aslide[$i] / 2)]);
+ }
+ }
+
+ # ge_p1p1_to_p3(r, &t);
+ return self::ge_p1p1_to_p3($t);
+ }
+
+ /**
+ * @param string $a
+ * @param string $b
+ * @return string
+ */
+ public static function sc25519_mul($a, $b)
+ {
+ // int64_t a0 = 2097151 & load_3(a);
+ // int64_t a1 = 2097151 & (load_4(a + 2) >> 5);
+ // int64_t a2 = 2097151 & (load_3(a + 5) >> 2);
+ // int64_t a3 = 2097151 & (load_4(a + 7) >> 7);
+ // int64_t a4 = 2097151 & (load_4(a + 10) >> 4);
+ // int64_t a5 = 2097151 & (load_3(a + 13) >> 1);
+ // int64_t a6 = 2097151 & (load_4(a + 15) >> 6);
+ // int64_t a7 = 2097151 & (load_3(a + 18) >> 3);
+ // int64_t a8 = 2097151 & load_3(a + 21);
+ // int64_t a9 = 2097151 & (load_4(a + 23) >> 5);
+ // int64_t a10 = 2097151 & (load_3(a + 26) >> 2);
+ // int64_t a11 = (load_4(a + 28) >> 7);
+ $a0 = 2097151 & self::load_3(self::substr($a, 0, 3));
+ $a1 = 2097151 & (self::load_4(self::substr($a, 2, 4)) >> 5);
+ $a2 = 2097151 & (self::load_3(self::substr($a, 5, 3)) >> 2);
+ $a3 = 2097151 & (self::load_4(self::substr($a, 7, 4)) >> 7);
+ $a4 = 2097151 & (self::load_4(self::substr($a, 10, 4)) >> 4);
+ $a5 = 2097151 & (self::load_3(self::substr($a, 13, 3)) >> 1);
+ $a6 = 2097151 & (self::load_4(self::substr($a, 15, 4)) >> 6);
+ $a7 = 2097151 & (self::load_3(self::substr($a, 18, 3)) >> 3);
+ $a8 = 2097151 & self::load_3(self::substr($a, 21, 3));
+ $a9 = 2097151 & (self::load_4(self::substr($a, 23, 4)) >> 5);
+ $a10 = 2097151 & (self::load_3(self::substr($a, 26, 3)) >> 2);
+ $a11 = (self::load_4(self::substr($a, 28, 4)) >> 7);
+
+ // int64_t b0 = 2097151 & load_3(b);
+ // int64_t b1 = 2097151 & (load_4(b + 2) >> 5);
+ // int64_t b2 = 2097151 & (load_3(b + 5) >> 2);
+ // int64_t b3 = 2097151 & (load_4(b + 7) >> 7);
+ // int64_t b4 = 2097151 & (load_4(b + 10) >> 4);
+ // int64_t b5 = 2097151 & (load_3(b + 13) >> 1);
+ // int64_t b6 = 2097151 & (load_4(b + 15) >> 6);
+ // int64_t b7 = 2097151 & (load_3(b + 18) >> 3);
+ // int64_t b8 = 2097151 & load_3(b + 21);
+ // int64_t b9 = 2097151 & (load_4(b + 23) >> 5);
+ // int64_t b10 = 2097151 & (load_3(b + 26) >> 2);
+ // int64_t b11 = (load_4(b + 28) >> 7);
+ $b0 = 2097151 & self::load_3(self::substr($b, 0, 3));
+ $b1 = 2097151 & (self::load_4(self::substr($b, 2, 4)) >> 5);
+ $b2 = 2097151 & (self::load_3(self::substr($b, 5, 3)) >> 2);
+ $b3 = 2097151 & (self::load_4(self::substr($b, 7, 4)) >> 7);
+ $b4 = 2097151 & (self::load_4(self::substr($b, 10, 4)) >> 4);
+ $b5 = 2097151 & (self::load_3(self::substr($b, 13, 3)) >> 1);
+ $b6 = 2097151 & (self::load_4(self::substr($b, 15, 4)) >> 6);
+ $b7 = 2097151 & (self::load_3(self::substr($b, 18, 3)) >> 3);
+ $b8 = 2097151 & self::load_3(self::substr($b, 21, 3));
+ $b9 = 2097151 & (self::load_4(self::substr($b, 23, 4)) >> 5);
+ $b10 = 2097151 & (self::load_3(self::substr($b, 26, 3)) >> 2);
+ $b11 = (self::load_4(self::substr($b, 28, 4)) >> 7);
+
+ // s0 = a0 * b0;
+ // s1 = a0 * b1 + a1 * b0;
+ // s2 = a0 * b2 + a1 * b1 + a2 * b0;
+ // s3 = a0 * b3 + a1 * b2 + a2 * b1 + a3 * b0;
+ // s4 = a0 * b4 + a1 * b3 + a2 * b2 + a3 * b1 + a4 * b0;
+ // s5 = a0 * b5 + a1 * b4 + a2 * b3 + a3 * b2 + a4 * b1 + a5 * b0;
+ // s6 = a0 * b6 + a1 * b5 + a2 * b4 + a3 * b3 + a4 * b2 + a5 * b1 + a6 * b0;
+ // s7 = a0 * b7 + a1 * b6 + a2 * b5 + a3 * b4 + a4 * b3 + a5 * b2 +
+ // a6 * b1 + a7 * b0;
+ // s8 = a0 * b8 + a1 * b7 + a2 * b6 + a3 * b5 + a4 * b4 + a5 * b3 +
+ // a6 * b2 + a7 * b1 + a8 * b0;
+ // s9 = a0 * b9 + a1 * b8 + a2 * b7 + a3 * b6 + a4 * b5 + a5 * b4 +
+ // a6 * b3 + a7 * b2 + a8 * b1 + a9 * b0;
+ // s10 = a0 * b10 + a1 * b9 + a2 * b8 + a3 * b7 + a4 * b6 + a5 * b5 +
+ // a6 * b4 + a7 * b3 + a8 * b2 + a9 * b1 + a10 * b0;
+ // s11 = a0 * b11 + a1 * b10 + a2 * b9 + a3 * b8 + a4 * b7 + a5 * b6 +
+ // a6 * b5 + a7 * b4 + a8 * b3 + a9 * b2 + a10 * b1 + a11 * b0;
+ // s12 = a1 * b11 + a2 * b10 + a3 * b9 + a4 * b8 + a5 * b7 + a6 * b6 +
+ // a7 * b5 + a8 * b4 + a9 * b3 + a10 * b2 + a11 * b1;
+ // s13 = a2 * b11 + a3 * b10 + a4 * b9 + a5 * b8 + a6 * b7 + a7 * b6 +
+ // a8 * b5 + a9 * b4 + a10 * b3 + a11 * b2;
+ // s14 = a3 * b11 + a4 * b10 + a5 * b9 + a6 * b8 + a7 * b7 + a8 * b6 +
+ // a9 * b5 + a10 * b4 + a11 * b3;
+ // s15 = a4 * b11 + a5 * b10 + a6 * b9 + a7 * b8 + a8 * b7 + a9 * b6 +
+ // a10 * b5 + a11 * b4;
+ // s16 =
+ // a5 * b11 + a6 * b10 + a7 * b9 + a8 * b8 + a9 * b7 + a10 * b6 + a11 * b5;
+ // s17 = a6 * b11 + a7 * b10 + a8 * b9 + a9 * b8 + a10 * b7 + a11 * b6;
+ // s18 = a7 * b11 + a8 * b10 + a9 * b9 + a10 * b8 + a11 * b7;
+ // s19 = a8 * b11 + a9 * b10 + a10 * b9 + a11 * b8;
+ // s20 = a9 * b11 + a10 * b10 + a11 * b9;
+ // s21 = a10 * b11 + a11 * b10;
+ // s22 = a11 * b11;
+ // s23 = 0;
+ $s0 = self::mul($a0, $b0, 22);
+ $s1 = self::mul($a0, $b1, 22) + self::mul($a1, $b0, 22);
+ $s2 = self::mul($a0, $b2, 22) + self::mul($a1, $b1, 22) + self::mul($a2, $b0, 22);
+ $s3 = self::mul($a0, $b3, 22) + self::mul($a1, $b2, 22) + self::mul($a2, $b1, 22) + self::mul($a3, $b0, 22);
+ $s4 = self::mul($a0, $b4, 22) + self::mul($a1, $b3, 22) + self::mul($a2, $b2, 22) + self::mul($a3, $b1, 22) +
+ self::mul($a4, $b0, 22);
+ $s5 = self::mul($a0, $b5, 22) + self::mul($a1, $b4, 22) + self::mul($a2, $b3, 22) + self::mul($a3, $b2, 22) +
+ self::mul($a4, $b1, 22) + self::mul($a5, $b0, 22);
+ $s6 = self::mul($a0, $b6, 22) + self::mul($a1, $b5, 22) + self::mul($a2, $b4, 22) + self::mul($a3, $b3, 22) +
+ self::mul($a4, $b2, 22) + self::mul($a5, $b1, 22) + self::mul($a6, $b0, 22);
+ $s7 = self::mul($a0, $b7, 22) + self::mul($a1, $b6, 22) + self::mul($a2, $b5, 22) + self::mul($a3, $b4, 22) +
+ self::mul($a4, $b3, 22) + self::mul($a5, $b2, 22) + self::mul($a6, $b1, 22) + self::mul($a7, $b0, 22);
+ $s8 = self::mul($a0, $b8, 22) + self::mul($a1, $b7, 22) + self::mul($a2, $b6, 22) + self::mul($a3, $b5, 22) +
+ self::mul($a4, $b4, 22) + self::mul($a5, $b3, 22) + self::mul($a6, $b2, 22) + self::mul($a7, $b1, 22) +
+ self::mul($a8, $b0, 22);
+ $s9 = self::mul($a0, $b9, 22) + self::mul($a1, $b8, 22) + self::mul($a2, $b7, 22) + self::mul($a3, $b6, 22) +
+ self::mul($a4, $b5, 22) + self::mul($a5, $b4, 22) + self::mul($a6, $b3, 22) + self::mul($a7, $b2, 22) +
+ self::mul($a8, $b1, 22) + self::mul($a9, $b0, 22);
+ $s10 = self::mul($a0, $b10, 22) + self::mul($a1, $b9, 22) + self::mul($a2, $b8, 22) + self::mul($a3, $b7, 22) +
+ self::mul($a4, $b6, 22) + self::mul($a5, $b5, 22) + self::mul($a6, $b4, 22) + self::mul($a7, $b3, 22) +
+ self::mul($a8, $b2, 22) + self::mul($a9, $b1, 22) + self::mul($a10, $b0, 22);
+ $s11 = self::mul($a0, $b11, 22) + self::mul($a1, $b10, 22) + self::mul($a2, $b9, 22) + self::mul($a3, $b8, 22) +
+ self::mul($a4, $b7, 22) + self::mul($a5, $b6, 22) + self::mul($a6, $b5, 22) + self::mul($a7, $b4, 22) +
+ self::mul($a8, $b3, 22) + self::mul($a9, $b2, 22) + self::mul($a10, $b1, 22) + self::mul($a11, $b0, 22);
+ $s12 = self::mul($a1, $b11, 22) + self::mul($a2, $b10, 22) + self::mul($a3, $b9, 22) + self::mul($a4, $b8, 22) +
+ self::mul($a5, $b7, 22) + self::mul($a6, $b6, 22) + self::mul($a7, $b5, 22) + self::mul($a8, $b4, 22) +
+ self::mul($a9, $b3, 22) + self::mul($a10, $b2, 22) + self::mul($a11, $b1, 22);
+ $s13 = self::mul($a2, $b11, 22) + self::mul($a3, $b10, 22) + self::mul($a4, $b9, 22) + self::mul($a5, $b8, 22) +
+ self::mul($a6, $b7, 22) + self::mul($a7, $b6, 22) + self::mul($a8, $b5, 22) + self::mul($a9, $b4, 22) +
+ self::mul($a10, $b3, 22) + self::mul($a11, $b2, 22);
+ $s14 = self::mul($a3, $b11, 22) + self::mul($a4, $b10, 22) + self::mul($a5, $b9, 22) + self::mul($a6, $b8, 22) +
+ self::mul($a7, $b7, 22) + self::mul($a8, $b6, 22) + self::mul($a9, $b5, 22) + self::mul($a10, $b4, 22) +
+ self::mul($a11, $b3, 22);
+ $s15 = self::mul($a4, $b11, 22) + self::mul($a5, $b10, 22) + self::mul($a6, $b9, 22) + self::mul($a7, $b8, 22) +
+ self::mul($a8, $b7, 22) + self::mul($a9, $b6, 22) + self::mul($a10, $b5, 22) + self::mul($a11, $b4, 22);
+ $s16 =
+ self::mul($a5, $b11, 22) + self::mul($a6, $b10, 22) + self::mul($a7, $b9, 22) + self::mul($a8, $b8, 22) +
+ self::mul($a9, $b7, 22) + self::mul($a10, $b6, 22) + self::mul($a11, $b5, 22);
+ $s17 = self::mul($a6, $b11, 22) + self::mul($a7, $b10, 22) + self::mul($a8, $b9, 22) + self::mul($a9, $b8, 22) +
+ self::mul($a10, $b7, 22) + self::mul($a11, $b6, 22);
+ $s18 = self::mul($a7, $b11, 22) + self::mul($a8, $b10, 22) + self::mul($a9, $b9, 22) + self::mul($a10, $b8, 22)
+ + self::mul($a11, $b7, 22);
+ $s19 = self::mul($a8, $b11, 22) + self::mul($a9, $b10, 22) + self::mul($a10, $b9, 22) +
+ self::mul($a11, $b8, 22);
+ $s20 = self::mul($a9, $b11, 22) + self::mul($a10, $b10, 22) + self::mul($a11, $b9, 22);
+ $s21 = self::mul($a10, $b11, 22) + self::mul($a11, $b10, 22);
+ $s22 = self::mul($a11, $b11, 22);
+ $s23 = 0;
+
+ // carry0 = (s0 + (int64_t) (1L << 20)) >> 21;
+ // s1 += carry0;
+ // s0 -= carry0 * ((uint64_t) 1L << 21);
+ $carry0 = ($s0 + (1 << 20)) >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ // carry2 = (s2 + (int64_t) (1L << 20)) >> 21;
+ // s3 += carry2;
+ // s2 -= carry2 * ((uint64_t) 1L << 21);
+ $carry2 = ($s2 + (1 << 20)) >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ // carry4 = (s4 + (int64_t) (1L << 20)) >> 21;
+ // s5 += carry4;
+ // s4 -= carry4 * ((uint64_t) 1L << 21);
+ $carry4 = ($s4 + (1 << 20)) >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ // carry6 = (s6 + (int64_t) (1L << 20)) >> 21;
+ // s7 += carry6;
+ // s6 -= carry6 * ((uint64_t) 1L << 21);
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ // carry8 = (s8 + (int64_t) (1L << 20)) >> 21;
+ // s9 += carry8;
+ // s8 -= carry8 * ((uint64_t) 1L << 21);
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ // carry10 = (s10 + (int64_t) (1L << 20)) >> 21;
+ // s11 += carry10;
+ // s10 -= carry10 * ((uint64_t) 1L << 21);
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ // carry12 = (s12 + (int64_t) (1L << 20)) >> 21;
+ // s13 += carry12;
+ // s12 -= carry12 * ((uint64_t) 1L << 21);
+ $carry12 = ($s12 + (1 << 20)) >> 21;
+ $s13 += $carry12;
+ $s12 -= $carry12 << 21;
+ // carry14 = (s14 + (int64_t) (1L << 20)) >> 21;
+ // s15 += carry14;
+ // s14 -= carry14 * ((uint64_t) 1L << 21);
+ $carry14 = ($s14 + (1 << 20)) >> 21;
+ $s15 += $carry14;
+ $s14 -= $carry14 << 21;
+ // carry16 = (s16 + (int64_t) (1L << 20)) >> 21;
+ // s17 += carry16;
+ // s16 -= carry16 * ((uint64_t) 1L << 21);
+ $carry16 = ($s16 + (1 << 20)) >> 21;
+ $s17 += $carry16;
+ $s16 -= $carry16 << 21;
+ // carry18 = (s18 + (int64_t) (1L << 20)) >> 21;
+ // s19 += carry18;
+ // s18 -= carry18 * ((uint64_t) 1L << 21);
+ $carry18 = ($s18 + (1 << 20)) >> 21;
+ $s19 += $carry18;
+ $s18 -= $carry18 << 21;
+ // carry20 = (s20 + (int64_t) (1L << 20)) >> 21;
+ // s21 += carry20;
+ // s20 -= carry20 * ((uint64_t) 1L << 21);
+ $carry20 = ($s20 + (1 << 20)) >> 21;
+ $s21 += $carry20;
+ $s20 -= $carry20 << 21;
+ // carry22 = (s22 + (int64_t) (1L << 20)) >> 21;
+ // s23 += carry22;
+ // s22 -= carry22 * ((uint64_t) 1L << 21);
+ $carry22 = ($s22 + (1 << 20)) >> 21;
+ $s23 += $carry22;
+ $s22 -= $carry22 << 21;
+
+ // carry1 = (s1 + (int64_t) (1L << 20)) >> 21;
+ // s2 += carry1;
+ // s1 -= carry1 * ((uint64_t) 1L << 21);
+ $carry1 = ($s1 + (1 << 20)) >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ // carry3 = (s3 + (int64_t) (1L << 20)) >> 21;
+ // s4 += carry3;
+ // s3 -= carry3 * ((uint64_t) 1L << 21);
+ $carry3 = ($s3 + (1 << 20)) >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ // carry5 = (s5 + (int64_t) (1L << 20)) >> 21;
+ // s6 += carry5;
+ // s5 -= carry5 * ((uint64_t) 1L << 21);
+ $carry5 = ($s5 + (1 << 20)) >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ // carry7 = (s7 + (int64_t) (1L << 20)) >> 21;
+ // s8 += carry7;
+ // s7 -= carry7 * ((uint64_t) 1L << 21);
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ // carry9 = (s9 + (int64_t) (1L << 20)) >> 21;
+ // s10 += carry9;
+ // s9 -= carry9 * ((uint64_t) 1L << 21);
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ // carry11 = (s11 + (int64_t) (1L << 20)) >> 21;
+ // s12 += carry11;
+ // s11 -= carry11 * ((uint64_t) 1L << 21);
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+ // carry13 = (s13 + (int64_t) (1L << 20)) >> 21;
+ // s14 += carry13;
+ // s13 -= carry13 * ((uint64_t) 1L << 21);
+ $carry13 = ($s13 + (1 << 20)) >> 21;
+ $s14 += $carry13;
+ $s13 -= $carry13 << 21;
+ // carry15 = (s15 + (int64_t) (1L << 20)) >> 21;
+ // s16 += carry15;
+ // s15 -= carry15 * ((uint64_t) 1L << 21);
+ $carry15 = ($s15 + (1 << 20)) >> 21;
+ $s16 += $carry15;
+ $s15 -= $carry15 << 21;
+ // carry17 = (s17 + (int64_t) (1L << 20)) >> 21;
+ // s18 += carry17;
+ // s17 -= carry17 * ((uint64_t) 1L << 21);
+ $carry17 = ($s17 + (1 << 20)) >> 21;
+ $s18 += $carry17;
+ $s17 -= $carry17 << 21;
+ // carry19 = (s19 + (int64_t) (1L << 20)) >> 21;
+ // s20 += carry19;
+ // s19 -= carry19 * ((uint64_t) 1L << 21);
+ $carry19 = ($s19 + (1 << 20)) >> 21;
+ $s20 += $carry19;
+ $s19 -= $carry19 << 21;
+ // carry21 = (s21 + (int64_t) (1L << 20)) >> 21;
+ // s22 += carry21;
+ // s21 -= carry21 * ((uint64_t) 1L << 21);
+ $carry21 = ($s21 + (1 << 20)) >> 21;
+ $s22 += $carry21;
+ $s21 -= $carry21 << 21;
+
+ // s11 += s23 * 666643;
+ // s12 += s23 * 470296;
+ // s13 += s23 * 654183;
+ // s14 -= s23 * 997805;
+ // s15 += s23 * 136657;
+ // s16 -= s23 * 683901;
+ $s11 += self::mul($s23, 666643, 20);
+ $s12 += self::mul($s23, 470296, 19);
+ $s13 += self::mul($s23, 654183, 20);
+ $s14 -= self::mul($s23, 997805, 20);
+ $s15 += self::mul($s23, 136657, 18);
+ $s16 -= self::mul($s23, 683901, 20);
+
+ // s10 += s22 * 666643;
+ // s11 += s22 * 470296;
+ // s12 += s22 * 654183;
+ // s13 -= s22 * 997805;
+ // s14 += s22 * 136657;
+ // s15 -= s22 * 683901;
+ $s10 += self::mul($s22, 666643, 20);
+ $s11 += self::mul($s22, 470296, 19);
+ $s12 += self::mul($s22, 654183, 20);
+ $s13 -= self::mul($s22, 997805, 20);
+ $s14 += self::mul($s22, 136657, 18);
+ $s15 -= self::mul($s22, 683901, 20);
+
+ // s9 += s21 * 666643;
+ // s10 += s21 * 470296;
+ // s11 += s21 * 654183;
+ // s12 -= s21 * 997805;
+ // s13 += s21 * 136657;
+ // s14 -= s21 * 683901;
+ $s9 += self::mul($s21, 666643, 20);
+ $s10 += self::mul($s21, 470296, 19);
+ $s11 += self::mul($s21, 654183, 20);
+ $s12 -= self::mul($s21, 997805, 20);
+ $s13 += self::mul($s21, 136657, 18);
+ $s14 -= self::mul($s21, 683901, 20);
+
+ // s8 += s20 * 666643;
+ // s9 += s20 * 470296;
+ // s10 += s20 * 654183;
+ // s11 -= s20 * 997805;
+ // s12 += s20 * 136657;
+ // s13 -= s20 * 683901;
+ $s8 += self::mul($s20, 666643, 20);
+ $s9 += self::mul($s20, 470296, 19);
+ $s10 += self::mul($s20, 654183, 20);
+ $s11 -= self::mul($s20, 997805, 20);
+ $s12 += self::mul($s20, 136657, 18);
+ $s13 -= self::mul($s20, 683901, 20);
+
+ // s7 += s19 * 666643;
+ // s8 += s19 * 470296;
+ // s9 += s19 * 654183;
+ // s10 -= s19 * 997805;
+ // s11 += s19 * 136657;
+ // s12 -= s19 * 683901;
+ $s7 += self::mul($s19, 666643, 20);
+ $s8 += self::mul($s19, 470296, 19);
+ $s9 += self::mul($s19, 654183, 20);
+ $s10 -= self::mul($s19, 997805, 20);
+ $s11 += self::mul($s19, 136657, 18);
+ $s12 -= self::mul($s19, 683901, 20);
+
+ // s6 += s18 * 666643;
+ // s7 += s18 * 470296;
+ // s8 += s18 * 654183;
+ // s9 -= s18 * 997805;
+ // s10 += s18 * 136657;
+ // s11 -= s18 * 683901;
+ $s6 += self::mul($s18, 666643, 20);
+ $s7 += self::mul($s18, 470296, 19);
+ $s8 += self::mul($s18, 654183, 20);
+ $s9 -= self::mul($s18, 997805, 20);
+ $s10 += self::mul($s18, 136657, 18);
+ $s11 -= self::mul($s18, 683901, 20);
+
+ // carry6 = (s6 + (int64_t) (1L << 20)) >> 21;
+ // s7 += carry6;
+ // s6 -= carry6 * ((uint64_t) 1L << 21);
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ // carry8 = (s8 + (int64_t) (1L << 20)) >> 21;
+ // s9 += carry8;
+ // s8 -= carry8 * ((uint64_t) 1L << 21);
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ // carry10 = (s10 + (int64_t) (1L << 20)) >> 21;
+ // s11 += carry10;
+ // s10 -= carry10 * ((uint64_t) 1L << 21);
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ // carry12 = (s12 + (int64_t) (1L << 20)) >> 21;
+ // s13 += carry12;
+ // s12 -= carry12 * ((uint64_t) 1L << 21);
+ $carry12 = ($s12 + (1 << 20)) >> 21;
+ $s13 += $carry12;
+ $s12 -= $carry12 << 21;
+ // carry14 = (s14 + (int64_t) (1L << 20)) >> 21;
+ // s15 += carry14;
+ // s14 -= carry14 * ((uint64_t) 1L << 21);
+ $carry14 = ($s14 + (1 << 20)) >> 21;
+ $s15 += $carry14;
+ $s14 -= $carry14 << 21;
+ // carry16 = (s16 + (int64_t) (1L << 20)) >> 21;
+ // s17 += carry16;
+ // s16 -= carry16 * ((uint64_t) 1L << 21);
+ $carry16 = ($s16 + (1 << 20)) >> 21;
+ $s17 += $carry16;
+ $s16 -= $carry16 << 21;
+
+ // carry7 = (s7 + (int64_t) (1L << 20)) >> 21;
+ // s8 += carry7;
+ // s7 -= carry7 * ((uint64_t) 1L << 21);
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ // carry9 = (s9 + (int64_t) (1L << 20)) >> 21;
+ // s10 += carry9;
+ // s9 -= carry9 * ((uint64_t) 1L << 21);
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ // carry11 = (s11 + (int64_t) (1L << 20)) >> 21;
+ // s12 += carry11;
+ // s11 -= carry11 * ((uint64_t) 1L << 21);
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+ // carry13 = (s13 + (int64_t) (1L << 20)) >> 21;
+ // s14 += carry13;
+ // s13 -= carry13 * ((uint64_t) 1L << 21);
+ $carry13 = ($s13 + (1 << 20)) >> 21;
+ $s14 += $carry13;
+ $s13 -= $carry13 << 21;
+ // carry15 = (s15 + (int64_t) (1L << 20)) >> 21;
+ // s16 += carry15;
+ // s15 -= carry15 * ((uint64_t) 1L << 21);
+ $carry15 = ($s15 + (1 << 20)) >> 21;
+ $s16 += $carry15;
+ $s15 -= $carry15 << 21;
+
+ // s5 += s17 * 666643;
+ // s6 += s17 * 470296;
+ // s7 += s17 * 654183;
+ // s8 -= s17 * 997805;
+ // s9 += s17 * 136657;
+ // s10 -= s17 * 683901;
+ $s5 += self::mul($s17, 666643, 20);
+ $s6 += self::mul($s17, 470296, 19);
+ $s7 += self::mul($s17, 654183, 20);
+ $s8 -= self::mul($s17, 997805, 20);
+ $s9 += self::mul($s17, 136657, 18);
+ $s10 -= self::mul($s17, 683901, 20);
+
+ // s4 += s16 * 666643;
+ // s5 += s16 * 470296;
+ // s6 += s16 * 654183;
+ // s7 -= s16 * 997805;
+ // s8 += s16 * 136657;
+ // s9 -= s16 * 683901;
+ $s4 += self::mul($s16, 666643, 20);
+ $s5 += self::mul($s16, 470296, 19);
+ $s6 += self::mul($s16, 654183, 20);
+ $s7 -= self::mul($s16, 997805, 20);
+ $s8 += self::mul($s16, 136657, 18);
+ $s9 -= self::mul($s16, 683901, 20);
+
+ // s3 += s15 * 666643;
+ // s4 += s15 * 470296;
+ // s5 += s15 * 654183;
+ // s6 -= s15 * 997805;
+ // s7 += s15 * 136657;
+ // s8 -= s15 * 683901;
+ $s3 += self::mul($s15, 666643, 20);
+ $s4 += self::mul($s15, 470296, 19);
+ $s5 += self::mul($s15, 654183, 20);
+ $s6 -= self::mul($s15, 997805, 20);
+ $s7 += self::mul($s15, 136657, 18);
+ $s8 -= self::mul($s15, 683901, 20);
+
+ // s2 += s14 * 666643;
+ // s3 += s14 * 470296;
+ // s4 += s14 * 654183;
+ // s5 -= s14 * 997805;
+ // s6 += s14 * 136657;
+ // s7 -= s14 * 683901;
+ $s2 += self::mul($s14, 666643, 20);
+ $s3 += self::mul($s14, 470296, 19);
+ $s4 += self::mul($s14, 654183, 20);
+ $s5 -= self::mul($s14, 997805, 20);
+ $s6 += self::mul($s14, 136657, 18);
+ $s7 -= self::mul($s14, 683901, 20);
+
+ // s1 += s13 * 666643;
+ // s2 += s13 * 470296;
+ // s3 += s13 * 654183;
+ // s4 -= s13 * 997805;
+ // s5 += s13 * 136657;
+ // s6 -= s13 * 683901;
+ $s1 += self::mul($s13, 666643, 20);
+ $s2 += self::mul($s13, 470296, 19);
+ $s3 += self::mul($s13, 654183, 20);
+ $s4 -= self::mul($s13, 997805, 20);
+ $s5 += self::mul($s13, 136657, 18);
+ $s6 -= self::mul($s13, 683901, 20);
+
+ // s0 += s12 * 666643;
+ // s1 += s12 * 470296;
+ // s2 += s12 * 654183;
+ // s3 -= s12 * 997805;
+ // s4 += s12 * 136657;
+ // s5 -= s12 * 683901;
+ // s12 = 0;
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+ $s12 = 0;
+
+ // carry0 = (s0 + (int64_t) (1L << 20)) >> 21;
+ // s1 += carry0;
+ // s0 -= carry0 * ((uint64_t) 1L << 21);
+ $carry0 = ($s0 + (1 << 20)) >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ // carry2 = (s2 + (int64_t) (1L << 20)) >> 21;
+ // s3 += carry2;
+ // s2 -= carry2 * ((uint64_t) 1L << 21);
+ $carry2 = ($s2 + (1 << 20)) >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ // carry4 = (s4 + (int64_t) (1L << 20)) >> 21;
+ // s5 += carry4;
+ // s4 -= carry4 * ((uint64_t) 1L << 21);
+ $carry4 = ($s4 + (1 << 20)) >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ // carry6 = (s6 + (int64_t) (1L << 20)) >> 21;
+ // s7 += carry6;
+ // s6 -= carry6 * ((uint64_t) 1L << 21);
+ $carry6 = ($s6 + (1 << 20)) >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ // carry8 = (s8 + (int64_t) (1L << 20)) >> 21;
+ // s9 += carry8;
+ // s8 -= carry8 * ((uint64_t) 1L << 21);
+ $carry8 = ($s8 + (1 << 20)) >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ // carry10 = (s10 + (int64_t) (1L << 20)) >> 21;
+ // s11 += carry10;
+ // s10 -= carry10 * ((uint64_t) 1L << 21);
+ $carry10 = ($s10 + (1 << 20)) >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+
+ // carry1 = (s1 + (int64_t) (1L << 20)) >> 21;
+ // s2 += carry1;
+ // s1 -= carry1 * ((uint64_t) 1L << 21);
+ $carry1 = ($s1 + (1 << 20)) >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ // carry3 = (s3 + (int64_t) (1L << 20)) >> 21;
+ // s4 += carry3;
+ // s3 -= carry3 * ((uint64_t) 1L << 21);
+ $carry3 = ($s3 + (1 << 20)) >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ // carry5 = (s5 + (int64_t) (1L << 20)) >> 21;
+ // s6 += carry5;
+ // s5 -= carry5 * ((uint64_t) 1L << 21);
+ $carry5 = ($s5 + (1 << 20)) >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ // carry7 = (s7 + (int64_t) (1L << 20)) >> 21;
+ // s8 += carry7;
+ // s7 -= carry7 * ((uint64_t) 1L << 21);
+ $carry7 = ($s7 + (1 << 20)) >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ // carry9 = (s9 + (int64_t) (1L << 20)) >> 21;
+ // s10 += carry9;
+ // s9 -= carry9 * ((uint64_t) 1L << 21);
+ $carry9 = ($s9 + (1 << 20)) >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ // carry11 = (s11 + (int64_t) (1L << 20)) >> 21;
+ // s12 += carry11;
+ // s11 -= carry11 * ((uint64_t) 1L << 21);
+ $carry11 = ($s11 + (1 << 20)) >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+
+ // s0 += s12 * 666643;
+ // s1 += s12 * 470296;
+ // s2 += s12 * 654183;
+ // s3 -= s12 * 997805;
+ // s4 += s12 * 136657;
+ // s5 -= s12 * 683901;
+ // s12 = 0;
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+ $s12 = 0;
+
+ // carry0 = s0 >> 21;
+ // s1 += carry0;
+ // s0 -= carry0 * ((uint64_t) 1L << 21);
+ $carry0 = $s0 >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ // carry1 = s1 >> 21;
+ // s2 += carry1;
+ // s1 -= carry1 * ((uint64_t) 1L << 21);
+ $carry1 = $s1 >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ // carry2 = s2 >> 21;
+ // s3 += carry2;
+ // s2 -= carry2 * ((uint64_t) 1L << 21);
+ $carry2 = $s2 >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ // carry3 = s3 >> 21;
+ // s4 += carry3;
+ // s3 -= carry3 * ((uint64_t) 1L << 21);
+ $carry3 = $s3 >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ // carry4 = s4 >> 21;
+ // s5 += carry4;
+ // s4 -= carry4 * ((uint64_t) 1L << 21);
+ $carry4 = $s4 >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ // carry5 = s5 >> 21;
+ // s6 += carry5;
+ // s5 -= carry5 * ((uint64_t) 1L << 21);
+ $carry5 = $s5 >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ // carry6 = s6 >> 21;
+ // s7 += carry6;
+ // s6 -= carry6 * ((uint64_t) 1L << 21);
+ $carry6 = $s6 >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ // carry7 = s7 >> 21;
+ // s8 += carry7;
+ // s7 -= carry7 * ((uint64_t) 1L << 21);
+ $carry7 = $s7 >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ // carry8 = s8 >> 21;
+ // s9 += carry8;
+ // s8 -= carry8 * ((uint64_t) 1L << 21);
+ $carry8 = $s8 >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ // carry9 = s9 >> 21;
+ // s10 += carry9;
+ // s9 -= carry9 * ((uint64_t) 1L << 21);
+ $carry9 = $s9 >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ // carry10 = s10 >> 21;
+ // s11 += carry10;
+ // s10 -= carry10 * ((uint64_t) 1L << 21);
+ $carry10 = $s10 >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+ // carry11 = s11 >> 21;
+ // s12 += carry11;
+ // s11 -= carry11 * ((uint64_t) 1L << 21);
+ $carry11 = $s11 >> 21;
+ $s12 += $carry11;
+ $s11 -= $carry11 << 21;
+
+ // s0 += s12 * 666643;
+ // s1 += s12 * 470296;
+ // s2 += s12 * 654183;
+ // s3 -= s12 * 997805;
+ // s4 += s12 * 136657;
+ // s5 -= s12 * 683901;
+ $s0 += self::mul($s12, 666643, 20);
+ $s1 += self::mul($s12, 470296, 19);
+ $s2 += self::mul($s12, 654183, 20);
+ $s3 -= self::mul($s12, 997805, 20);
+ $s4 += self::mul($s12, 136657, 18);
+ $s5 -= self::mul($s12, 683901, 20);
+
+ // carry0 = s0 >> 21;
+ // s1 += carry0;
+ // s0 -= carry0 * ((uint64_t) 1L << 21);
+ $carry0 = $s0 >> 21;
+ $s1 += $carry0;
+ $s0 -= $carry0 << 21;
+ // carry1 = s1 >> 21;
+ // s2 += carry1;
+ // s1 -= carry1 * ((uint64_t) 1L << 21);
+ $carry1 = $s1 >> 21;
+ $s2 += $carry1;
+ $s1 -= $carry1 << 21;
+ // carry2 = s2 >> 21;
+ // s3 += carry2;
+ // s2 -= carry2 * ((uint64_t) 1L << 21);
+ $carry2 = $s2 >> 21;
+ $s3 += $carry2;
+ $s2 -= $carry2 << 21;
+ // carry3 = s3 >> 21;
+ // s4 += carry3;
+ // s3 -= carry3 * ((uint64_t) 1L << 21);
+ $carry3 = $s3 >> 21;
+ $s4 += $carry3;
+ $s3 -= $carry3 << 21;
+ // carry4 = s4 >> 21;
+ // s5 += carry4;
+ // s4 -= carry4 * ((uint64_t) 1L << 21);
+ $carry4 = $s4 >> 21;
+ $s5 += $carry4;
+ $s4 -= $carry4 << 21;
+ // carry5 = s5 >> 21;
+ // s6 += carry5;
+ // s5 -= carry5 * ((uint64_t) 1L << 21);
+ $carry5 = $s5 >> 21;
+ $s6 += $carry5;
+ $s5 -= $carry5 << 21;
+ // carry6 = s6 >> 21;
+ // s7 += carry6;
+ // s6 -= carry6 * ((uint64_t) 1L << 21);
+ $carry6 = $s6 >> 21;
+ $s7 += $carry6;
+ $s6 -= $carry6 << 21;
+ // carry7 = s7 >> 21;
+ // s8 += carry7;
+ // s7 -= carry7 * ((uint64_t) 1L << 21);
+ $carry7 = $s7 >> 21;
+ $s8 += $carry7;
+ $s7 -= $carry7 << 21;
+ // carry8 = s8 >> 21;
+ // s9 += carry8;
+ // s8 -= carry8 * ((uint64_t) 1L << 21);
+ $carry8 = $s8 >> 21;
+ $s9 += $carry8;
+ $s8 -= $carry8 << 21;
+ // carry9 = s9 >> 21;
+ // s10 += carry9;
+ // s9 -= carry9 * ((uint64_t) 1L << 21);
+ $carry9 = $s9 >> 21;
+ $s10 += $carry9;
+ $s9 -= $carry9 << 21;
+ // carry10 = s10 >> 21;
+ // s11 += carry10;
+ // s10 -= carry10 * ((uint64_t) 1L << 21);
+ $carry10 = $s10 >> 21;
+ $s11 += $carry10;
+ $s10 -= $carry10 << 21;
+
+ $s = array_fill(0, 32, 0);
+ // s[0] = s0 >> 0;
+ $s[0] = $s0 >> 0;
+ // s[1] = s0 >> 8;
+ $s[1] = $s0 >> 8;
+ // s[2] = (s0 >> 16) | (s1 * ((uint64_t) 1 << 5));
+ $s[2] = ($s0 >> 16) | ($s1 << 5);
+ // s[3] = s1 >> 3;
+ $s[3] = $s1 >> 3;
+ // s[4] = s1 >> 11;
+ $s[4] = $s1 >> 11;
+ // s[5] = (s1 >> 19) | (s2 * ((uint64_t) 1 << 2));
+ $s[5] = ($s1 >> 19) | ($s2 << 2);
+ // s[6] = s2 >> 6;
+ $s[6] = $s2 >> 6;
+ // s[7] = (s2 >> 14) | (s3 * ((uint64_t) 1 << 7));
+ $s[7] = ($s2 >> 14) | ($s3 << 7);
+ // s[8] = s3 >> 1;
+ $s[8] = $s3 >> 1;
+ // s[9] = s3 >> 9;
+ $s[9] = $s3 >> 9;
+ // s[10] = (s3 >> 17) | (s4 * ((uint64_t) 1 << 4));
+ $s[10] = ($s3 >> 17) | ($s4 << 4);
+ // s[11] = s4 >> 4;
+ $s[11] = $s4 >> 4;
+ // s[12] = s4 >> 12;
+ $s[12] = $s4 >> 12;
+ // s[13] = (s4 >> 20) | (s5 * ((uint64_t) 1 << 1));
+ $s[13] = ($s4 >> 20) | ($s5 << 1);
+ // s[14] = s5 >> 7;
+ $s[14] = $s5 >> 7;
+ // s[15] = (s5 >> 15) | (s6 * ((uint64_t) 1 << 6));
+ $s[15] = ($s5 >> 15) | ($s6 << 6);
+ // s[16] = s6 >> 2;
+ $s[16] = $s6 >> 2;
+ // s[17] = s6 >> 10;
+ $s[17] = $s6 >> 10;
+ // s[18] = (s6 >> 18) | (s7 * ((uint64_t) 1 << 3));
+ $s[18] = ($s6 >> 18) | ($s7 << 3);
+ // s[19] = s7 >> 5;
+ $s[19] = $s7 >> 5;
+ // s[20] = s7 >> 13;
+ $s[20] = $s7 >> 13;
+ // s[21] = s8 >> 0;
+ $s[21] = $s8 >> 0;
+ // s[22] = s8 >> 8;
+ $s[22] = $s8 >> 8;
+ // s[23] = (s8 >> 16) | (s9 * ((uint64_t) 1 << 5));
+ $s[23] = ($s8 >> 16) | ($s9 << 5);
+ // s[24] = s9 >> 3;
+ $s[24] = $s9 >> 3;
+ // s[25] = s9 >> 11;
+ $s[25] = $s9 >> 11;
+ // s[26] = (s9 >> 19) | (s10 * ((uint64_t) 1 << 2));
+ $s[26] = ($s9 >> 19) | ($s10 << 2);
+ // s[27] = s10 >> 6;
+ $s[27] = $s10 >> 6;
+ // s[28] = (s10 >> 14) | (s11 * ((uint64_t) 1 << 7));
+ $s[28] = ($s10 >> 14) | ($s11 << 7);
+ // s[29] = s11 >> 1;
+ $s[29] = $s11 >> 1;
+ // s[30] = s11 >> 9;
+ $s[30] = $s11 >> 9;
+ // s[31] = s11 >> 17;
+ $s[31] = $s11 >> 17;
+ return self::intArrayToString($s);
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ */
+ public static function sc25519_sq($s)
+ {
+ return self::sc25519_mul($s, $s);
+ }
+
+ /**
+ * @param string $s
+ * @param int $n
+ * @param string $a
+ * @return string
+ */
+ public static function sc25519_sqmul($s, $n, $a)
+ {
+ for ($i = 0; $i < $n; ++$i) {
+ $s = self::sc25519_sq($s);
+ }
+ return self::sc25519_mul($s, $a);
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ */
+ public static function sc25519_invert($s)
+ {
+ $_10 = self::sc25519_sq($s);
+ $_11 = self::sc25519_mul($s, $_10);
+ $_100 = self::sc25519_mul($s, $_11);
+ $_1000 = self::sc25519_sq($_100);
+ $_1010 = self::sc25519_mul($_10, $_1000);
+ $_1011 = self::sc25519_mul($s, $_1010);
+ $_10000 = self::sc25519_sq($_1000);
+ $_10110 = self::sc25519_sq($_1011);
+ $_100000 = self::sc25519_mul($_1010, $_10110);
+ $_100110 = self::sc25519_mul($_10000, $_10110);
+ $_1000000 = self::sc25519_sq($_100000);
+ $_1010000 = self::sc25519_mul($_10000, $_1000000);
+ $_1010011 = self::sc25519_mul($_11, $_1010000);
+ $_1100011 = self::sc25519_mul($_10000, $_1010011);
+ $_1100111 = self::sc25519_mul($_100, $_1100011);
+ $_1101011 = self::sc25519_mul($_100, $_1100111);
+ $_10010011 = self::sc25519_mul($_1000000, $_1010011);
+ $_10010111 = self::sc25519_mul($_100, $_10010011);
+ $_10111101 = self::sc25519_mul($_100110, $_10010111);
+ $_11010011 = self::sc25519_mul($_10110, $_10111101);
+ $_11100111 = self::sc25519_mul($_1010000, $_10010111);
+ $_11101011 = self::sc25519_mul($_100, $_11100111);
+ $_11110101 = self::sc25519_mul($_1010, $_11101011);
+
+ $recip = self::sc25519_mul($_1011, $_11110101);
+ $recip = self::sc25519_sqmul($recip, 126, $_1010011);
+ $recip = self::sc25519_sqmul($recip, 9, $_10);
+ $recip = self::sc25519_mul($recip, $_11110101);
+ $recip = self::sc25519_sqmul($recip, 7, $_1100111);
+ $recip = self::sc25519_sqmul($recip, 9, $_11110101);
+ $recip = self::sc25519_sqmul($recip, 11, $_10111101);
+ $recip = self::sc25519_sqmul($recip, 8, $_11100111);
+ $recip = self::sc25519_sqmul($recip, 9, $_1101011);
+ $recip = self::sc25519_sqmul($recip, 6, $_1011);
+ $recip = self::sc25519_sqmul($recip, 14, $_10010011);
+ $recip = self::sc25519_sqmul($recip, 10, $_1100011);
+ $recip = self::sc25519_sqmul($recip, 9, $_10010111);
+ $recip = self::sc25519_sqmul($recip, 10, $_11110101);
+ $recip = self::sc25519_sqmul($recip, 8, $_11010011);
+ return self::sc25519_sqmul($recip, 8, $_11101011);
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ */
+ public static function clamp($s)
+ {
+ $s_ = self::stringToIntArray($s);
+ $s_[0] &= 248;
+ $s_[31] |= 64;
+ $s_[31] &= 128;
+ return self::intArrayToString($s_);
+ }
+
+ /**
+ * Ensure limbs are less than 28 bits long to prevent float promotion.
+ *
+ * This uses a constant-time conditional swap under the hood.
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_normalize(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ $x = (PHP_INT_SIZE << 3) - 1; // 31 or 63
+
+ $g = self::fe_copy($f);
+ for ($i = 0; $i < 10; ++$i) {
+ $mask = -(($g[$i] >> $x) & 1);
+
+ /*
+ * Get two candidate normalized values for $g[$i], depending on the sign of $g[$i]:
+ */
+ $a = $g[$i] & 0x7ffffff;
+ $b = -((-$g[$i]) & 0x7ffffff);
+
+ /*
+ * Return the appropriate candidate value, based on the sign of the original input:
+ *
+ * The following is equivalent to this ternary:
+ *
+ * $g[$i] = (($g[$i] >> $x) & 1) ? $a : $b;
+ *
+ * Except what's written doesn't contain timing leaks.
+ */
+ $g[$i] = ($a ^ (($a ^ $b) & $mask));
+ }
+ return $g;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php
index 64c489a..5270965 100644
--- a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php
+++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php
@@ -60,6 +60,7 @@ class ParagonIE_Sodium_Core_Curve25519_Fe implements ArrayAccess
* @return void
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
if (!is_int($value)) {
@@ -79,6 +80,7 @@ class ParagonIE_Sodium_Core_Curve25519_Fe implements ArrayAccess
* @return bool
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetExists($offset)
{
return isset($this->container[$offset]);
@@ -91,6 +93,7 @@ class ParagonIE_Sodium_Core_Curve25519_Fe implements ArrayAccess
* @return void
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetUnset($offset)
{
unset($this->container[$offset]);
@@ -103,6 +106,7 @@ class ParagonIE_Sodium_Core_Curve25519_Fe implements ArrayAccess
* @return int
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetGet($offset)
{
if (!isset($this->container[$offset])) {
diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php
index adab63e..a2fbbf9 100644
--- a/vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php
+++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php
@@ -1,1549 +1,1549 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core_Curve25519_H', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_Sodium_Core_Curve25519_H
- *
- * This just contains the constants in the ref10/base.h file
- */
-class ParagonIE_Sodium_Core_Curve25519_H extends ParagonIE_Sodium_Core_Util
-{
- /**
- * See: libsodium's crypto_core/curve25519/ref10/base.h
- *
- * @var array<int, array<int, array<int, array<int, int>>>> Basically, int[32][8][3][10]
- */
- protected static $base = array(
- array(
- array(
- array(25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605),
- array(-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378),
- array(-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546),
- ),
- array(
- array(-12815894, -12976347, -21581243, 11784320, -25355658, -2750717, -11717903, -3814571, -358445, -10211303),
- array(-21703237, 6903825, 27185491, 6451973, -29577724, -9554005, -15616551, 11189268, -26829678, -5319081),
- array(26966642, 11152617, 32442495, 15396054, 14353839, -12752335, -3128826, -9541118, -15472047, -4166697),
- ),
- array(
- array(15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024),
- array(16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574),
- array(30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357),
- ),
- array(
- array(-17036878, 13921892, 10945806, -6033431, 27105052, -16084379, -28926210, 15006023, 3284568, -6276540),
- array(23599295, -8306047, -11193664, -7687416, 13236774, 10506355, 7464579, 9656445, 13059162, 10374397),
- array(7798556, 16710257, 3033922, 2874086, 28997861, 2835604, 32406664, -3839045, -641708, -101325),
- ),
- array(
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- array(
- array(-25493081, -6962928, 32500200, -9419051, -23038724, -2302222, 14898637, 3848455, 20969334, -5157516),
- array(-20384450, -14347713, -18336405, 13884722, -33039454, 2842114, -21610826, -3649888, 11177095, 14989547),
- array(-24496721, -11716016, 16959896, 2278463, 12066309, 10137771, 13515641, 2581286, -28487508, 9930240),
- ),
- array(
- array(-17751622, -2097826, 16544300, -13009300, -15914807, -14949081, 18345767, -13403753, 16291481, -5314038),
- array(-33229194, 2553288, 32678213, 9875984, 8534129, 6889387, -9676774, 6957617, 4368891, 9788741),
- array(16660756, 7281060, -10830758, 12911820, 20108584, -8101676, -21722536, -8613148, 16250552, -11111103),
- ),
- array(
- array(-19765507, 2390526, -16551031, 14161980, 1905286, 6414907, 4689584, 10604807, -30190403, 4782747),
- array(-1354539, 14736941, -7367442, -13292886, 7710542, -14155590, -9981571, 4383045, 22546403, 437323),
- array(31665577, -12180464, -16186830, 1491339, -18368625, 3294682, 27343084, 2786261, -30633590, -14097016),
- ),
- array(
- array(-14467279, -683715, -33374107, 7448552, 19294360, 14334329, -19690631, 2355319, -19284671, -6114373),
- array(15121312, -15796162, 6377020, -6031361, -10798111, -12957845, 18952177, 15496498, -29380133, 11754228),
- array(-2637277, -13483075, 8488727, -14303896, 12728761, -1622493, 7141596, 11724556, 22761615, -10134141),
- ),
- array(
- array(16918416, 11729663, -18083579, 3022987, -31015732, -13339659, -28741185, -12227393, 32851222, 11717399),
- array(11166634, 7338049, -6722523, 4531520, -29468672, -7302055, 31474879, 3483633, -1193175, -4030831),
- array(-185635, 9921305, 31456609, -13536438, -12013818, 13348923, 33142652, 6546660, -19985279, -3948376),
- ),
- array(
- array(-32460596, 11266712, -11197107, -7899103, 31703694, 3855903, -8537131, -12833048, -30772034, -15486313),
- array(-18006477, 12709068, 3991746, -6479188, -21491523, -10550425, -31135347, -16049879, 10928917, 3011958),
- array(-6957757, -15594337, 31696059, 334240, 29576716, 14796075, -30831056, -12805180, 18008031, 10258577),
- ),
- array(
- array(-22448644, 15655569, 7018479, -4410003, -30314266, -1201591, -1853465, 1367120, 25127874, 6671743),
- array(29701166, -14373934, -10878120, 9279288, -17568, 13127210, 21382910, 11042292, 25838796, 4642684),
- array(-20430234, 14955537, -24126347, 8124619, -5369288, -5990470, 30468147, -13900640, 18423289, 4177476),
- ),
- )
- );
-
- /**
- * See: libsodium's crypto_core/curve25519/ref10/base2.h
- *
- * @var array basically int[8][3]
- */
- protected static $base2 = array(
- array(
- array(25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605),
- array(-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378),
- array(-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546),
- ),
- array(
- array(15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024),
- array(16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574),
- array(30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357),
- ),
- array(
- array(10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380),
- array(4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306),
- array(19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942),
- ),
- array(
- array(5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766),
- array(-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701),
- array(28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300),
- ),
- array(
- array(-22518993, -6692182, 14201702, -8745502, -23510406, 8844726, 18474211, -1361450, -13062696, 13821877),
- array(-6455177, -7839871, 3374702, -4740862, -27098617, -10571707, 31655028, -7212327, 18853322, -14220951),
- array(4566830, -12963868, -28974889, -12240689, -7602672, -2830569, -8514358, -10431137, 2207753, -3209784),
- ),
- array(
- array(-25154831, -4185821, 29681144, 7868801, -6854661, -9423865, -12437364, -663000, -31111463, -16132436),
- array(25576264, -2703214, 7349804, -11814844, 16472782, 9300885, 3844789, 15725684, 171356, 6466918),
- array(23103977, 13316479, 9739013, -16149481, 817875, -15038942, 8965339, -14088058, -30714912, 16193877),
- ),
- array(
- array(-33521811, 3180713, -2394130, 14003687, -16903474, -16270840, 17238398, 4729455, -18074513, 9256800),
- array(-25182317, -4174131, 32336398, 5036987, -21236817, 11360617, 22616405, 9761698, -19827198, 630305),
- array(-13720693, 2639453, -24237460, -7406481, 9494427, -5774029, -6554551, -15960994, -2449256, -14291300),
- ),
- array(
- array(-3151181, -5046075, 9282714, 6866145, -31907062, -863023, -18940575, 15033784, 25105118, -7894876),
- array(-24326370, 15950226, -31801215, -14592823, -11662737, -5090925, 1573892, -2625887, 2198790, -15804619),
- array(-3099351, 10324967, -2241613, 7453183, -5446979, -2735503, -13812022, -16236442, -32461234, -12290683),
- )
- );
-
- /**
- * 37095705934669439343138083508754565189542113879843219016388785533085940283555
- *
- * @var array<int, int>
- */
- protected static $d = array(
- -10913610,
- 13857413,
- -15372611,
- 6949391,
- 114729,
- -8787816,
- -6275908,
- -3247719,
- -18696448,
- -12055116
- );
-
- /**
- * 2 * d = 16295367250680780974490674513165176452449235426866156013048779062215315747161
- *
- * @var array<int, int>
- */
- protected static $d2 = array(
- -21827239,
- -5839606,
- -30745221,
- 13898782,
- 229458,
- 15978800,
- -12551817,
- -6495438,
- 29715968,
- 9444199
- );
-
- /**
- * sqrt(-1)
- *
- * @var array<int, int>
- */
- protected static $sqrtm1 = array(
- -32595792,
- -7943725,
- 9377950,
- 3500415,
- 12389472,
- -272473,
- -25146209,
- -2005654,
- 326686,
- 11406482
- );
-
- /**
- * 1 / sqrt(a - d)
- *
- * @var array<int, int>
- */
- protected static $invsqrtamd = array(
- 6111485,
- 4156064,
- -27798727,
- 12243468,
- -25904040,
- 120897,
- 20826367,
- -7060776,
- 6093568,
- -1986012
- );
-
- /**
- * sqrt(ad - 1) with a = -1 (mod p)
- *
- * @var array<int, int>
- */
- protected static $sqrtadm1 = array(
- 24849947,
- -153582,
- -23613485,
- 6347715,
- -21072328,
- -667138,
- -25271143,
- -15367704,
- -870347,
- 14525639
- );
-
- /**
- * 1 - d ^ 2
- *
- * @var array<int, int>
- */
- protected static $onemsqd = array(
- 6275446,
- -16617371,
- -22938544,
- -3773710,
- 11667077,
- 7397348,
- -27922721,
- 1766195,
- -24433858,
- 672203
- );
-
- /**
- * (d - 1) ^ 2
- * @var array<int, int>
- */
- protected static $sqdmone = array(
- 15551795,
- -11097455,
- -13425098,
- -10125071,
- -11896535,
- 10178284,
- -26634327,
- 4729244,
- -5282110,
- -10116402
- );
-
-
- /*
- * 2^252+27742317777372353535851937790883648493
- static const unsigned char L[] = {
- 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7,
- 0xa2, 0xde, 0xf9, 0xde, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10
- };
- */
- const L = "\xed\xd3\xf5\x5c\x1a\x63\x12\x58\xd6\x9c\xf7\xa2\xde\xf9\xde\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10";
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core_Curve25519_H', false)) {
+ return;
+}
+
+/**
+ * Class ParagonIE_Sodium_Core_Curve25519_H
+ *
+ * This just contains the constants in the ref10/base.h file
+ */
+class ParagonIE_Sodium_Core_Curve25519_H extends ParagonIE_Sodium_Core_Util
+{
+ /**
+ * See: libsodium's crypto_core/curve25519/ref10/base.h
+ *
+ * @var array<int, array<int, array<int, array<int, int>>>> Basically, int[32][8][3][10]
+ */
+ protected static $base = array(
+ array(
+ array(
+ array(25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605),
+ array(-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378),
+ array(-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546),
+ ),
+ array(
+ array(-12815894, -12976347, -21581243, 11784320, -25355658, -2750717, -11717903, -3814571, -358445, -10211303),
+ array(-21703237, 6903825, 27185491, 6451973, -29577724, -9554005, -15616551, 11189268, -26829678, -5319081),
+ array(26966642, 11152617, 32442495, 15396054, 14353839, -12752335, -3128826, -9541118, -15472047, -4166697),
+ ),
+ array(
+ array(15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024),
+ array(16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574),
+ array(30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357),
+ ),
+ array(
+ array(-17036878, 13921892, 10945806, -6033431, 27105052, -16084379, -28926210, 15006023, 3284568, -6276540),
+ array(23599295, -8306047, -11193664, -7687416, 13236774, 10506355, 7464579, 9656445, 13059162, 10374397),
+ array(7798556, 16710257, 3033922, 2874086, 28997861, 2835604, 32406664, -3839045, -641708, -101325),
+ ),
+ array(
+ array(10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380),
+ array(4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306),
+ array(19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942),
+ ),
+ array(
+ array(-15371964, -12862754, 32573250, 4720197, -26436522, 5875511, -19188627, -15224819, -9818940, -12085777),
+ array(-8549212, 109983, 15149363, 2178705, 22900618, 4543417, 3044240, -15689887, 1762328, 14866737),
+ array(-18199695, -15951423, -10473290, 1707278, -17185920, 3916101, -28236412, 3959421, 27914454, 4383652),
+ ),
+ array(
+ array(5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766),
+ array(-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701),
+ array(28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300),
+ ),
+ array(
+ array(14499471, -2729599, -33191113, -4254652, 28494862, 14271267, 30290735, 10876454, -33154098, 2381726),
+ array(-7195431, -2655363, -14730155, 462251, -27724326, 3941372, -6236617, 3696005, -32300832, 15351955),
+ array(27431194, 8222322, 16448760, -3907995, -18707002, 11938355, -32961401, -2970515, 29551813, 10109425),
+ ),
+ ),
+ array(
+ array(
+ array(-13657040, -13155431, -31283750, 11777098, 21447386, 6519384, -2378284, -1627556, 10092783, -4764171),
+ array(27939166, 14210322, 4677035, 16277044, -22964462, -12398139, -32508754, 12005538, -17810127, 12803510),
+ array(17228999, -15661624, -1233527, 300140, -1224870, -11714777, 30364213, -9038194, 18016357, 4397660),
+ ),
+ array(
+ array(-10958843, -7690207, 4776341, -14954238, 27850028, -15602212, -26619106, 14544525, -17477504, 982639),
+ array(29253598, 15796703, -2863982, -9908884, 10057023, 3163536, 7332899, -4120128, -21047696, 9934963),
+ array(5793303, 16271923, -24131614, -10116404, 29188560, 1206517, -14747930, 4559895, -30123922, -10897950),
+ ),
+ array(
+ array(-27643952, -11493006, 16282657, -11036493, 28414021, -15012264, 24191034, 4541697, -13338309, 5500568),
+ array(12650548, -1497113, 9052871, 11355358, -17680037, -8400164, -17430592, 12264343, 10874051, 13524335),
+ array(25556948, -3045990, 714651, 2510400, 23394682, -10415330, 33119038, 5080568, -22528059, 5376628),
+ ),
+ array(
+ array(-26088264, -4011052, -17013699, -3537628, -6726793, 1920897, -22321305, -9447443, 4535768, 1569007),
+ array(-2255422, 14606630, -21692440, -8039818, 28430649, 8775819, -30494562, 3044290, 31848280, 12543772),
+ array(-22028579, 2943893, -31857513, 6777306, 13784462, -4292203, -27377195, -2062731, 7718482, 14474653),
+ ),
+ array(
+ array(2385315, 2454213, -22631320, 46603, -4437935, -15680415, 656965, -7236665, 24316168, -5253567),
+ array(13741529, 10911568, -33233417, -8603737, -20177830, -1033297, 33040651, -13424532, -20729456, 8321686),
+ array(21060490, -2212744, 15712757, -4336099, 1639040, 10656336, 23845965, -11874838, -9984458, 608372),
+ ),
+ array(
+ array(-13672732, -15087586, -10889693, -7557059, -6036909, 11305547, 1123968, -6780577, 27229399, 23887),
+ array(-23244140, -294205, -11744728, 14712571, -29465699, -2029617, 12797024, -6440308, -1633405, 16678954),
+ array(-29500620, 4770662, -16054387, 14001338, 7830047, 9564805, -1508144, -4795045, -17169265, 4904953),
+ ),
+ array(
+ array(24059557, 14617003, 19037157, -15039908, 19766093, -14906429, 5169211, 16191880, 2128236, -4326833),
+ array(-16981152, 4124966, -8540610, -10653797, 30336522, -14105247, -29806336, 916033, -6882542, -2986532),
+ array(-22630907, 12419372, -7134229, -7473371, -16478904, 16739175, 285431, 2763829, 15736322, 4143876),
+ ),
+ array(
+ array(2379352, 11839345, -4110402, -5988665, 11274298, 794957, 212801, -14594663, 23527084, -16458268),
+ array(33431127, -11130478, -17838966, -15626900, 8909499, 8376530, -32625340, 4087881, -15188911, -14416214),
+ array(1767683, 7197987, -13205226, -2022635, -13091350, 448826, 5799055, 4357868, -4774191, -16323038),
+ ),
+ ),
+ array(
+ array(
+ array(6721966, 13833823, -23523388, -1551314, 26354293, -11863321, 23365147, -3949732, 7390890, 2759800),
+ array(4409041, 2052381, 23373853, 10530217, 7676779, -12885954, 21302353, -4264057, 1244380, -12919645),
+ array(-4421239, 7169619, 4982368, -2957590, 30256825, -2777540, 14086413, 9208236, 15886429, 16489664),
+ ),
+ array(
+ array(1996075, 10375649, 14346367, 13311202, -6874135, -16438411, -13693198, 398369, -30606455, -712933),
+ array(-25307465, 9795880, -2777414, 14878809, -33531835, 14780363, 13348553, 12076947, -30836462, 5113182),
+ array(-17770784, 11797796, 31950843, 13929123, -25888302, 12288344, -30341101, -7336386, 13847711, 5387222),
+ ),
+ array(
+ array(-18582163, -3416217, 17824843, -2340966, 22744343, -10442611, 8763061, 3617786, -19600662, 10370991),
+ array(20246567, -14369378, 22358229, -543712, 18507283, -10413996, 14554437, -8746092, 32232924, 16763880),
+ array(9648505, 10094563, 26416693, 14745928, -30374318, -6472621, 11094161, 15689506, 3140038, -16510092),
+ ),
+ array(
+ array(-16160072, 5472695, 31895588, 4744994, 8823515, 10365685, -27224800, 9448613, -28774454, 366295),
+ array(19153450, 11523972, -11096490, -6503142, -24647631, 5420647, 28344573, 8041113, 719605, 11671788),
+ array(8678025, 2694440, -6808014, 2517372, 4964326, 11152271, -15432916, -15266516, 27000813, -10195553),
+ ),
+ array(
+ array(-15157904, 7134312, 8639287, -2814877, -7235688, 10421742, 564065, 5336097, 6750977, -14521026),
+ array(11836410, -3979488, 26297894, 16080799, 23455045, 15735944, 1695823, -8819122, 8169720, 16220347),
+ array(-18115838, 8653647, 17578566, -6092619, -8025777, -16012763, -11144307, -2627664, -5990708, -14166033),
+ ),
+ array(
+ array(-23308498, -10968312, 15213228, -10081214, -30853605, -11050004, 27884329, 2847284, 2655861, 1738395),
+ array(-27537433, -14253021, -25336301, -8002780, -9370762, 8129821, 21651608, -3239336, -19087449, -11005278),
+ array(1533110, 3437855, 23735889, 459276, 29970501, 11335377, 26030092, 5821408, 10478196, 8544890),
+ ),
+ array(
+ array(32173121, -16129311, 24896207, 3921497, 22579056, -3410854, 19270449, 12217473, 17789017, -3395995),
+ array(-30552961, -2228401, -15578829, -10147201, 13243889, 517024, 15479401, -3853233, 30460520, 1052596),
+ array(-11614875, 13323618, 32618793, 8175907, -15230173, 12596687, 27491595, -4612359, 3179268, -9478891),
+ ),
+ array(
+ array(31947069, -14366651, -4640583, -15339921, -15125977, -6039709, -14756777, -16411740, 19072640, -9511060),
+ array(11685058, 11822410, 3158003, -13952594, 33402194, -4165066, 5977896, -5215017, 473099, 5040608),
+ array(-20290863, 8198642, -27410132, 11602123, 1290375, -2799760, 28326862, 1721092, -19558642, -3131606),
+ ),
+ ),
+ array(
+ array(
+ array(7881532, 10687937, 7578723, 7738378, -18951012, -2553952, 21820786, 8076149, -27868496, 11538389),
+ array(-19935666, 3899861, 18283497, -6801568, -15728660, -11249211, 8754525, 7446702, -5676054, 5797016),
+ array(-11295600, -3793569, -15782110, -7964573, 12708869, -8456199, 2014099, -9050574, -2369172, -5877341),
+ ),
+ array(
+ array(-22472376, -11568741, -27682020, 1146375, 18956691, 16640559, 1192730, -3714199, 15123619, 10811505),
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+ array(
+ array(11293895, 12478086, -27136401, 15083750, -29307421, 14748872, 14555558, -13417103, 1613711, 4896935),
+ array(-25894883, 15323294, -8489791, -8057900, 25967126, -13425460, 2825960, -4897045, -23971776, -11267415),
+ array(-15924766, -5229880, -17443532, 6410664, 3622847, 10243618, 20615400, 12405433, -23753030, -8436416),
+ ),
+ array(
+ array(-7091295, 12556208, -20191352, 9025187, -17072479, 4333801, 4378436, 2432030, 23097949, -566018),
+ array(4565804, -16025654, 20084412, -7842817, 1724999, 189254, 24767264, 10103221, -18512313, 2424778),
+ array(366633, -11976806, 8173090, -6890119, 30788634, 5745705, -7168678, 1344109, -3642553, 12412659),
+ ),
+ array(
+ array(-24001791, 7690286, 14929416, -168257, -32210835, -13412986, 24162697, -15326504, -3141501, 11179385),
+ array(18289522, -14724954, 8056945, 16430056, -21729724, 7842514, -6001441, -1486897, -18684645, -11443503),
+ array(476239, 6601091, -6152790, -9723375, 17503545, -4863900, 27672959, 13403813, 11052904, 5219329),
+ ),
+ ),
+ array(
+ array(
+ array(20678546, -8375738, -32671898, 8849123, -5009758, 14574752, 31186971, -3973730, 9014762, -8579056),
+ array(-13644050, -10350239, -15962508, 5075808, -1514661, -11534600, -33102500, 9160280, 8473550, -3256838),
+ array(24900749, 14435722, 17209120, -15292541, -22592275, 9878983, -7689309, -16335821, -24568481, 11788948),
+ ),
+ array(
+ array(-3118155, -11395194, -13802089, 14797441, 9652448, -6845904, -20037437, 10410733, -24568470, -1458691),
+ array(-15659161, 16736706, -22467150, 10215878, -9097177, 7563911, 11871841, -12505194, -18513325, 8464118),
+ array(-23400612, 8348507, -14585951, -861714, -3950205, -6373419, 14325289, 8628612, 33313881, -8370517),
+ ),
+ array(
+ array(-20186973, -4967935, 22367356, 5271547, -1097117, -4788838, -24805667, -10236854, -8940735, -5818269),
+ array(-6948785, -1795212, -32625683, -16021179, 32635414, -7374245, 15989197, -12838188, 28358192, -4253904),
+ array(-23561781, -2799059, -32351682, -1661963, -9147719, 10429267, -16637684, 4072016, -5351664, 5596589),
+ ),
+ array(
+ array(-28236598, -3390048, 12312896, 6213178, 3117142, 16078565, 29266239, 2557221, 1768301, 15373193),
+ array(-7243358, -3246960, -4593467, -7553353, -127927, -912245, -1090902, -4504991, -24660491, 3442910),
+ array(-30210571, 5124043, 14181784, 8197961, 18964734, -11939093, 22597931, 7176455, -18585478, 13365930),
+ ),
+ array(
+ array(-7877390, -1499958, 8324673, 4690079, 6261860, 890446, 24538107, -8570186, -9689599, -3031667),
+ array(25008904, -10771599, -4305031, -9638010, 16265036, 15721635, 683793, -11823784, 15723479, -15163481),
+ array(-9660625, 12374379, -27006999, -7026148, -7724114, -12314514, 11879682, 5400171, 519526, -1235876),
+ ),
+ array(
+ array(22258397, -16332233, -7869817, 14613016, -22520255, -2950923, -20353881, 7315967, 16648397, 7605640),
+ array(-8081308, -8464597, -8223311, 9719710, 19259459, -15348212, 23994942, -5281555, -9468848, 4763278),
+ array(-21699244, 9220969, -15730624, 1084137, -25476107, -2852390, 31088447, -7764523, -11356529, 728112),
+ ),
+ array(
+ array(26047220, -11751471, -6900323, -16521798, 24092068, 9158119, -4273545, -12555558, -29365436, -5498272),
+ array(17510331, -322857, 5854289, 8403524, 17133918, -3112612, -28111007, 12327945, 10750447, 10014012),
+ array(-10312768, 3936952, 9156313, -8897683, 16498692, -994647, -27481051, -666732, 3424691, 7540221),
+ ),
+ array(
+ array(30322361, -6964110, 11361005, -4143317, 7433304, 4989748, -7071422, -16317219, -9244265, 15258046),
+ array(13054562, -2779497, 19155474, 469045, -12482797, 4566042, 5631406, 2711395, 1062915, -5136345),
+ array(-19240248, -11254599, -29509029, -7499965, -5835763, 13005411, -6066489, 12194497, 32960380, 1459310),
+ ),
+ ),
+ array(
+ array(
+ array(19852034, 7027924, 23669353, 10020366, 8586503, -6657907, 394197, -6101885, 18638003, -11174937),
+ array(31395534, 15098109, 26581030, 8030562, -16527914, -5007134, 9012486, -7584354, -6643087, -5442636),
+ array(-9192165, -2347377, -1997099, 4529534, 25766844, 607986, -13222, 9677543, -32294889, -6456008),
+ ),
+ array(
+ array(-2444496, -149937, 29348902, 8186665, 1873760, 12489863, -30934579, -7839692, -7852844, -8138429),
+ array(-15236356, -15433509, 7766470, 746860, 26346930, -10221762, -27333451, 10754588, -9431476, 5203576),
+ array(31834314, 14135496, -770007, 5159118, 20917671, -16768096, -7467973, -7337524, 31809243, 7347066),
+ ),
+ array(
+ array(-9606723, -11874240, 20414459, 13033986, 13716524, -11691881, 19797970, -12211255, 15192876, -2087490),
+ array(-12663563, -2181719, 1168162, -3804809, 26747877, -14138091, 10609330, 12694420, 33473243, -13382104),
+ array(33184999, 11180355, 15832085, -11385430, -1633671, 225884, 15089336, -11023903, -6135662, 14480053),
+ ),
+ array(
+ array(31308717, -5619998, 31030840, -1897099, 15674547, -6582883, 5496208, 13685227, 27595050, 8737275),
+ array(-20318852, -15150239, 10933843, -16178022, 8335352, -7546022, -31008351, -12610604, 26498114, 66511),
+ array(22644454, -8761729, -16671776, 4884562, -3105614, -13559366, 30540766, -4286747, -13327787, -7515095),
+ ),
+ array(
+ array(-28017847, 9834845, 18617207, -2681312, -3401956, -13307506, 8205540, 13585437, -17127465, 15115439),
+ array(23711543, -672915, 31206561, -8362711, 6164647, -9709987, -33535882, -1426096, 8236921, 16492939),
+ array(-23910559, -13515526, -26299483, -4503841, 25005590, -7687270, 19574902, 10071562, 6708380, -6222424),
+ ),
+ array(
+ array(2101391, -4930054, 19702731, 2367575, -15427167, 1047675, 5301017, 9328700, 29955601, -11678310),
+ array(3096359, 9271816, -21620864, -15521844, -14847996, -7592937, -25892142, -12635595, -9917575, 6216608),
+ array(-32615849, 338663, -25195611, 2510422, -29213566, -13820213, 24822830, -6146567, -26767480, 7525079),
+ ),
+ array(
+ array(-23066649, -13985623, 16133487, -7896178, -3389565, 778788, -910336, -2782495, -19386633, 11994101),
+ array(21691500, -13624626, -641331, -14367021, 3285881, -3483596, -25064666, 9718258, -7477437, 13381418),
+ array(18445390, -4202236, 14979846, 11622458, -1727110, -3582980, 23111648, -6375247, 28535282, 15779576),
+ ),
+ array(
+ array(30098053, 3089662, -9234387, 16662135, -21306940, 11308411, -14068454, 12021730, 9955285, -16303356),
+ array(9734894, -14576830, -7473633, -9138735, 2060392, 11313496, -18426029, 9924399, 20194861, 13380996),
+ array(-26378102, -7965207, -22167821, 15789297, -18055342, -6168792, -1984914, 15707771, 26342023, 10146099),
+ ),
+ ),
+ array(
+ array(
+ array(-26016874, -219943, 21339191, -41388, 19745256, -2878700, -29637280, 2227040, 21612326, -545728),
+ array(-13077387, 1184228, 23562814, -5970442, -20351244, -6348714, 25764461, 12243797, -20856566, 11649658),
+ array(-10031494, 11262626, 27384172, 2271902, 26947504, -15997771, 39944, 6114064, 33514190, 2333242),
+ ),
+ array(
+ array(-21433588, -12421821, 8119782, 7219913, -21830522, -9016134, -6679750, -12670638, 24350578, -13450001),
+ array(-4116307, -11271533, -23886186, 4843615, -30088339, 690623, -31536088, -10406836, 8317860, 12352766),
+ array(18200138, -14475911, -33087759, -2696619, -23702521, -9102511, -23552096, -2287550, 20712163, 6719373),
+ ),
+ array(
+ array(26656208, 6075253, -7858556, 1886072, -28344043, 4262326, 11117530, -3763210, 26224235, -3297458),
+ array(-17168938, -14854097, -3395676, -16369877, -19954045, 14050420, 21728352, 9493610, 18620611, -16428628),
+ array(-13323321, 13325349, 11432106, 5964811, 18609221, 6062965, -5269471, -9725556, -30701573, -16479657),
+ ),
+ array(
+ array(-23860538, -11233159, 26961357, 1640861, -32413112, -16737940, 12248509, -5240639, 13735342, 1934062),
+ array(25089769, 6742589, 17081145, -13406266, 21909293, -16067981, -15136294, -3765346, -21277997, 5473616),
+ array(31883677, -7961101, 1083432, -11572403, 22828471, 13290673, -7125085, 12469656, 29111212, -5451014),
+ ),
+ array(
+ array(24244947, -15050407, -26262976, 2791540, -14997599, 16666678, 24367466, 6388839, -10295587, 452383),
+ array(-25640782, -3417841, 5217916, 16224624, 19987036, -4082269, -24236251, -5915248, 15766062, 8407814),
+ array(-20406999, 13990231, 15495425, 16395525, 5377168, 15166495, -8917023, -4388953, -8067909, 2276718),
+ ),
+ array(
+ array(30157918, 12924066, -17712050, 9245753, 19895028, 3368142, -23827587, 5096219, 22740376, -7303417),
+ array(2041139, -14256350, 7783687, 13876377, -25946985, -13352459, 24051124, 13742383, -15637599, 13295222),
+ array(33338237, -8505733, 12532113, 7977527, 9106186, -1715251, -17720195, -4612972, -4451357, -14669444),
+ ),
+ array(
+ array(-20045281, 5454097, -14346548, 6447146, 28862071, 1883651, -2469266, -4141880, 7770569, 9620597),
+ array(23208068, 7979712, 33071466, 8149229, 1758231, -10834995, 30945528, -1694323, -33502340, -14767970),
+ array(1439958, -16270480, -1079989, -793782, 4625402, 10647766, -5043801, 1220118, 30494170, -11440799),
+ ),
+ array(
+ array(-5037580, -13028295, -2970559, -3061767, 15640974, -6701666, -26739026, 926050, -1684339, -13333647),
+ array(13908495, -3549272, 30919928, -6273825, -21521863, 7989039, 9021034, 9078865, 3353509, 4033511),
+ array(-29663431, -15113610, 32259991, -344482, 24295849, -12912123, 23161163, 8839127, 27485041, 7356032),
+ ),
+ ),
+ array(
+ array(
+ array(9661027, 705443, 11980065, -5370154, -1628543, 14661173, -6346142, 2625015, 28431036, -16771834),
+ array(-23839233, -8311415, -25945511, 7480958, -17681669, -8354183, -22545972, 14150565, 15970762, 4099461),
+ array(29262576, 16756590, 26350592, -8793563, 8529671, -11208050, 13617293, -9937143, 11465739, 8317062),
+ ),
+ array(
+ array(-25493081, -6962928, 32500200, -9419051, -23038724, -2302222, 14898637, 3848455, 20969334, -5157516),
+ array(-20384450, -14347713, -18336405, 13884722, -33039454, 2842114, -21610826, -3649888, 11177095, 14989547),
+ array(-24496721, -11716016, 16959896, 2278463, 12066309, 10137771, 13515641, 2581286, -28487508, 9930240),
+ ),
+ array(
+ array(-17751622, -2097826, 16544300, -13009300, -15914807, -14949081, 18345767, -13403753, 16291481, -5314038),
+ array(-33229194, 2553288, 32678213, 9875984, 8534129, 6889387, -9676774, 6957617, 4368891, 9788741),
+ array(16660756, 7281060, -10830758, 12911820, 20108584, -8101676, -21722536, -8613148, 16250552, -11111103),
+ ),
+ array(
+ array(-19765507, 2390526, -16551031, 14161980, 1905286, 6414907, 4689584, 10604807, -30190403, 4782747),
+ array(-1354539, 14736941, -7367442, -13292886, 7710542, -14155590, -9981571, 4383045, 22546403, 437323),
+ array(31665577, -12180464, -16186830, 1491339, -18368625, 3294682, 27343084, 2786261, -30633590, -14097016),
+ ),
+ array(
+ array(-14467279, -683715, -33374107, 7448552, 19294360, 14334329, -19690631, 2355319, -19284671, -6114373),
+ array(15121312, -15796162, 6377020, -6031361, -10798111, -12957845, 18952177, 15496498, -29380133, 11754228),
+ array(-2637277, -13483075, 8488727, -14303896, 12728761, -1622493, 7141596, 11724556, 22761615, -10134141),
+ ),
+ array(
+ array(16918416, 11729663, -18083579, 3022987, -31015732, -13339659, -28741185, -12227393, 32851222, 11717399),
+ array(11166634, 7338049, -6722523, 4531520, -29468672, -7302055, 31474879, 3483633, -1193175, -4030831),
+ array(-185635, 9921305, 31456609, -13536438, -12013818, 13348923, 33142652, 6546660, -19985279, -3948376),
+ ),
+ array(
+ array(-32460596, 11266712, -11197107, -7899103, 31703694, 3855903, -8537131, -12833048, -30772034, -15486313),
+ array(-18006477, 12709068, 3991746, -6479188, -21491523, -10550425, -31135347, -16049879, 10928917, 3011958),
+ array(-6957757, -15594337, 31696059, 334240, 29576716, 14796075, -30831056, -12805180, 18008031, 10258577),
+ ),
+ array(
+ array(-22448644, 15655569, 7018479, -4410003, -30314266, -1201591, -1853465, 1367120, 25127874, 6671743),
+ array(29701166, -14373934, -10878120, 9279288, -17568, 13127210, 21382910, 11042292, 25838796, 4642684),
+ array(-20430234, 14955537, -24126347, 8124619, -5369288, -5990470, 30468147, -13900640, 18423289, 4177476),
+ ),
+ )
+ );
+
+ /**
+ * See: libsodium's crypto_core/curve25519/ref10/base2.h
+ *
+ * @var array basically int[8][3]
+ */
+ protected static $base2 = array(
+ array(
+ array(25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605),
+ array(-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378),
+ array(-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546),
+ ),
+ array(
+ array(15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024),
+ array(16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574),
+ array(30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357),
+ ),
+ array(
+ array(10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380),
+ array(4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306),
+ array(19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942),
+ ),
+ array(
+ array(5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766),
+ array(-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701),
+ array(28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300),
+ ),
+ array(
+ array(-22518993, -6692182, 14201702, -8745502, -23510406, 8844726, 18474211, -1361450, -13062696, 13821877),
+ array(-6455177, -7839871, 3374702, -4740862, -27098617, -10571707, 31655028, -7212327, 18853322, -14220951),
+ array(4566830, -12963868, -28974889, -12240689, -7602672, -2830569, -8514358, -10431137, 2207753, -3209784),
+ ),
+ array(
+ array(-25154831, -4185821, 29681144, 7868801, -6854661, -9423865, -12437364, -663000, -31111463, -16132436),
+ array(25576264, -2703214, 7349804, -11814844, 16472782, 9300885, 3844789, 15725684, 171356, 6466918),
+ array(23103977, 13316479, 9739013, -16149481, 817875, -15038942, 8965339, -14088058, -30714912, 16193877),
+ ),
+ array(
+ array(-33521811, 3180713, -2394130, 14003687, -16903474, -16270840, 17238398, 4729455, -18074513, 9256800),
+ array(-25182317, -4174131, 32336398, 5036987, -21236817, 11360617, 22616405, 9761698, -19827198, 630305),
+ array(-13720693, 2639453, -24237460, -7406481, 9494427, -5774029, -6554551, -15960994, -2449256, -14291300),
+ ),
+ array(
+ array(-3151181, -5046075, 9282714, 6866145, -31907062, -863023, -18940575, 15033784, 25105118, -7894876),
+ array(-24326370, 15950226, -31801215, -14592823, -11662737, -5090925, 1573892, -2625887, 2198790, -15804619),
+ array(-3099351, 10324967, -2241613, 7453183, -5446979, -2735503, -13812022, -16236442, -32461234, -12290683),
+ )
+ );
+
+ /**
+ * 37095705934669439343138083508754565189542113879843219016388785533085940283555
+ *
+ * @var array<int, int>
+ */
+ protected static $d = array(
+ -10913610,
+ 13857413,
+ -15372611,
+ 6949391,
+ 114729,
+ -8787816,
+ -6275908,
+ -3247719,
+ -18696448,
+ -12055116
+ );
+
+ /**
+ * 2 * d = 16295367250680780974490674513165176452449235426866156013048779062215315747161
+ *
+ * @var array<int, int>
+ */
+ protected static $d2 = array(
+ -21827239,
+ -5839606,
+ -30745221,
+ 13898782,
+ 229458,
+ 15978800,
+ -12551817,
+ -6495438,
+ 29715968,
+ 9444199
+ );
+
+ /**
+ * sqrt(-1)
+ *
+ * @var array<int, int>
+ */
+ protected static $sqrtm1 = array(
+ -32595792,
+ -7943725,
+ 9377950,
+ 3500415,
+ 12389472,
+ -272473,
+ -25146209,
+ -2005654,
+ 326686,
+ 11406482
+ );
+
+ /**
+ * 1 / sqrt(a - d)
+ *
+ * @var array<int, int>
+ */
+ protected static $invsqrtamd = array(
+ 6111485,
+ 4156064,
+ -27798727,
+ 12243468,
+ -25904040,
+ 120897,
+ 20826367,
+ -7060776,
+ 6093568,
+ -1986012
+ );
+
+ /**
+ * sqrt(ad - 1) with a = -1 (mod p)
+ *
+ * @var array<int, int>
+ */
+ protected static $sqrtadm1 = array(
+ 24849947,
+ -153582,
+ -23613485,
+ 6347715,
+ -21072328,
+ -667138,
+ -25271143,
+ -15367704,
+ -870347,
+ 14525639
+ );
+
+ /**
+ * 1 - d ^ 2
+ *
+ * @var array<int, int>
+ */
+ protected static $onemsqd = array(
+ 6275446,
+ -16617371,
+ -22938544,
+ -3773710,
+ 11667077,
+ 7397348,
+ -27922721,
+ 1766195,
+ -24433858,
+ 672203
+ );
+
+ /**
+ * (d - 1) ^ 2
+ * @var array<int, int>
+ */
+ protected static $sqdmone = array(
+ 15551795,
+ -11097455,
+ -13425098,
+ -10125071,
+ -11896535,
+ 10178284,
+ -26634327,
+ 4729244,
+ -5282110,
+ -10116402
+ );
+
+
+ /*
+ * 2^252+27742317777372353535851937790883648493
+ static const unsigned char L[] = {
+ 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58, 0xd6, 0x9c, 0xf7,
+ 0xa2, 0xde, 0xf9, 0xde, 0x14, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10
+ };
+ */
+ const L = "\xed\xd3\xf5\x5c\x1a\x63\x12\x58\xd6\x9c\xf7\xa2\xde\xf9\xde\x14\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x10";
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Ed25519.php b/vendor/paragonie/sodium_compat/src/Core/Ed25519.php
index c29f493..3f18c7d 100644
--- a/vendor/paragonie/sodium_compat/src/Core/Ed25519.php
+++ b/vendor/paragonie/sodium_compat/src/Core/Ed25519.php
@@ -1,551 +1,554 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core_Ed25519', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_Sodium_Core_Ed25519
- */
-abstract class ParagonIE_Sodium_Core_Ed25519 extends ParagonIE_Sodium_Core_Curve25519
-{
- const KEYPAIR_BYTES = 96;
- const SEED_BYTES = 32;
- const SCALAR_BYTES = 32;
-
- /**
- * @internal You should not use this directly from another application
- *
- * @return string (96 bytes)
- * @throws Exception
- * @throws SodiumException
- * @throws TypeError
- */
- public static function keypair()
- {
- $seed = random_bytes(self::SEED_BYTES);
- $pk = '';
- $sk = '';
- self::seed_keypair($pk, $sk, $seed);
- return $sk . $pk;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $pk
- * @param string $sk
- * @param string $seed
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function seed_keypair(&$pk, &$sk, $seed)
- {
- if (self::strlen($seed) !== self::SEED_BYTES) {
- throw new RangeException('crypto_sign keypair seed must be 32 bytes long');
- }
-
- /** @var string $pk */
- $pk = self::publickey_from_secretkey($seed);
- $sk = $seed . $pk;
- return $sk;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $keypair
- * @return string
- * @throws TypeError
- */
- public static function secretkey($keypair)
- {
- if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
- throw new RangeException('crypto_sign keypair must be 96 bytes long');
- }
- return self::substr($keypair, 0, 64);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $keypair
- * @return string
- * @throws TypeError
- */
- public static function publickey($keypair)
- {
- if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
- throw new RangeException('crypto_sign keypair must be 96 bytes long');
- }
- return self::substr($keypair, 64, 32);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function publickey_from_secretkey($sk)
- {
- /** @var string $sk */
- $sk = hash('sha512', self::substr($sk, 0, 32), true);
- $sk[0] = self::intToChr(
- self::chrToInt($sk[0]) & 248
- );
- $sk[31] = self::intToChr(
- (self::chrToInt($sk[31]) & 63) | 64
- );
- return self::sk_to_pk($sk);
- }
-
- /**
- * @param string $pk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function pk_to_curve25519($pk)
- {
- if (self::small_order($pk)) {
- throw new SodiumException('Public key is on a small order');
- }
- $A = self::ge_frombytes_negate_vartime(self::substr($pk, 0, 32));
- $p1 = self::ge_mul_l($A);
- if (!self::fe_isnonzero($p1->X)) {
- throw new SodiumException('Unexpected zero result');
- }
-
- # fe_1(one_minus_y);
- # fe_sub(one_minus_y, one_minus_y, A.Y);
- # fe_invert(one_minus_y, one_minus_y);
- $one_minux_y = self::fe_invert(
- self::fe_sub(
- self::fe_1(),
- $A->Y
- )
- );
-
- # fe_1(x);
- # fe_add(x, x, A.Y);
- # fe_mul(x, x, one_minus_y);
- $x = self::fe_mul(
- self::fe_add(self::fe_1(), $A->Y),
- $one_minux_y
- );
-
- # fe_tobytes(curve25519_pk, x);
- return self::fe_tobytes($x);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sk_to_pk($sk)
- {
- return self::ge_p3_tobytes(
- self::ge_scalarmult_base(
- self::substr($sk, 0, 32)
- )
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $message
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sign($message, $sk)
- {
- /** @var string $signature */
- $signature = self::sign_detached($message, $sk);
- return $signature . $message;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $message A signed message
- * @param string $pk Public key
- * @return string Message (without signature)
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sign_open($message, $pk)
- {
- /** @var string $signature */
- $signature = self::substr($message, 0, 64);
-
- /** @var string $message */
- $message = self::substr($message, 64);
-
- if (self::verify_detached($signature, $message, $pk)) {
- return $message;
- }
- throw new SodiumException('Invalid signature');
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $message
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sign_detached($message, $sk)
- {
- # crypto_hash_sha512(az, sk, 32);
- $az = hash('sha512', self::substr($sk, 0, 32), true);
-
- # az[0] &= 248;
- # az[31] &= 63;
- # az[31] |= 64;
- $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
- $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
-
- # crypto_hash_sha512_init(&hs);
- # crypto_hash_sha512_update(&hs, az + 32, 32);
- # crypto_hash_sha512_update(&hs, m, mlen);
- # crypto_hash_sha512_final(&hs, nonce);
- $hs = hash_init('sha512');
- hash_update($hs, self::substr($az, 32, 32));
- hash_update($hs, $message);
- $nonceHash = hash_final($hs, true);
-
- # memmove(sig + 32, sk + 32, 32);
- $pk = self::substr($sk, 32, 32);
-
- # sc_reduce(nonce);
- # ge_scalarmult_base(&R, nonce);
- # ge_p3_tobytes(sig, &R);
- $nonce = self::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
- $sig = self::ge_p3_tobytes(
- self::ge_scalarmult_base($nonce)
- );
-
- # crypto_hash_sha512_init(&hs);
- # crypto_hash_sha512_update(&hs, sig, 64);
- # crypto_hash_sha512_update(&hs, m, mlen);
- # crypto_hash_sha512_final(&hs, hram);
- $hs = hash_init('sha512');
- hash_update($hs, self::substr($sig, 0, 32));
- hash_update($hs, self::substr($pk, 0, 32));
- hash_update($hs, $message);
- $hramHash = hash_final($hs, true);
-
- # sc_reduce(hram);
- # sc_muladd(sig + 32, hram, az, nonce);
- $hram = self::sc_reduce($hramHash);
- $sigAfter = self::sc_muladd($hram, $az, $nonce);
- $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
-
- try {
- ParagonIE_Sodium_Compat::memzero($az);
- } catch (SodiumException $ex) {
- $az = null;
- }
- return $sig;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $sig
- * @param string $message
- * @param string $pk
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function verify_detached($sig, $message, $pk)
- {
- if (self::strlen($sig) < 64) {
- throw new SodiumException('Signature is too short');
- }
- if ((self::chrToInt($sig[63]) & 240) && self::check_S_lt_L(self::substr($sig, 32, 32))) {
- throw new SodiumException('S < L - Invalid signature');
- }
- if (self::small_order($sig)) {
- throw new SodiumException('Signature is on too small of an order');
- }
- if ((self::chrToInt($sig[63]) & 224) !== 0) {
- throw new SodiumException('Invalid signature');
- }
- $d = 0;
- for ($i = 0; $i < 32; ++$i) {
- $d |= self::chrToInt($pk[$i]);
- }
- if ($d === 0) {
- throw new SodiumException('All zero public key');
- }
-
- /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
- $orig = ParagonIE_Sodium_Compat::$fastMult;
-
- // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
- ParagonIE_Sodium_Compat::$fastMult = true;
-
- /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A */
- $A = self::ge_frombytes_negate_vartime($pk);
-
- /** @var string $hDigest */
- $hDigest = hash(
- 'sha512',
- self::substr($sig, 0, 32) .
- self::substr($pk, 0, 32) .
- $message,
- true
- );
-
- /** @var string $h */
- $h = self::sc_reduce($hDigest) . self::substr($hDigest, 32);
-
- /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P2 $R */
- $R = self::ge_double_scalarmult_vartime(
- $h,
- $A,
- self::substr($sig, 32)
- );
-
- /** @var string $rcheck */
- $rcheck = self::ge_tobytes($R);
-
- // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
- ParagonIE_Sodium_Compat::$fastMult = $orig;
-
- return self::verify_32($rcheck, self::substr($sig, 0, 32));
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $S
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function check_S_lt_L($S)
- {
- if (self::strlen($S) < 32) {
- throw new SodiumException('Signature must be 32 bytes');
- }
- $L = array(
- 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58,
- 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10
- );
- $c = 0;
- $n = 1;
- $i = 32;
-
- /** @var array<int, int> $L */
- do {
- --$i;
- $x = self::chrToInt($S[$i]);
- $c |= (
- (($x - $L[$i]) >> 8) & $n
- );
- $n &= (
- (($x ^ $L[$i]) - 1) >> 8
- );
- } while ($i !== 0);
-
- return $c === 0;
- }
-
- /**
- * @param string $R
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function small_order($R)
- {
- /** @var array<int, array<int, int>> $blocklist */
- $blocklist = array(
- /* 0 (order 4) */
- array(
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- ),
- /* 1 (order 1) */
- array(
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- ),
- /* 2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
- array(
- 0x26, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
- 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
- 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
- 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x05
- ),
- /* 55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
- array(
- 0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
- 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
- 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
- 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0x7a
- ),
- /* p-1 (order 2) */
- array(
- 0x13, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
- 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
- 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
- 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x85
- ),
- /* p (order 4) */
- array(
- 0xb4, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
- 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
- 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
- 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0xfa
- ),
- /* p+1 (order 1) */
- array(
- 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
- ),
- /* p+2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
- array(
- 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
- ),
- /* p+55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
- array(
- 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
- ),
- /* 2p-1 (order 2) */
- array(
- 0xd9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
- ),
- /* 2p (order 4) */
- array(
- 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
- ),
- /* 2p+1 (order 1) */
- array(
- 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
- )
- );
- /** @var int $countBlocklist */
- $countBlocklist = count($blocklist);
-
- for ($i = 0; $i < $countBlocklist; ++$i) {
- $c = 0;
- for ($j = 0; $j < 32; ++$j) {
- $c |= self::chrToInt($R[$j]) ^ (int) $blocklist[$i][$j];
- }
- if ($c === 0) {
- return true;
- }
- }
- return false;
- }
-
- /**
- * @param string $s
- * @return string
- * @throws SodiumException
- */
- public static function scalar_complement($s)
- {
- $t_ = self::L . str_repeat("\x00", 32);
- sodium_increment($t_);
- $s_ = $s . str_repeat("\x00", 32);
- ParagonIE_Sodium_Compat::sub($t_, $s_);
- return self::sc_reduce($t_);
- }
-
- /**
- * @return string
- * @throws SodiumException
- */
- public static function scalar_random()
- {
- do {
- $r = ParagonIE_Sodium_Compat::randombytes_buf(self::SCALAR_BYTES);
- $r[self::SCALAR_BYTES - 1] = self::intToChr(
- self::chrToInt($r[self::SCALAR_BYTES - 1]) & 0x1f
- );
- } while (
- !self::check_S_lt_L($r) || ParagonIE_Sodium_Compat::is_zero($r)
- );
- return $r;
- }
-
- /**
- * @param string $s
- * @return string
- * @throws SodiumException
- */
- public static function scalar_negate($s)
- {
- $t_ = self::L . str_repeat("\x00", 32) ;
- $s_ = $s . str_repeat("\x00", 32) ;
- ParagonIE_Sodium_Compat::sub($t_, $s_);
- return self::sc_reduce($t_);
- }
-
- /**
- * @param string $a
- * @param string $b
- * @return string
- * @throws SodiumException
- */
- public static function scalar_add($a, $b)
- {
- $a_ = $a . str_repeat("\x00", 32);
- $b_ = $b . str_repeat("\x00", 32);
- ParagonIE_Sodium_Compat::add($a_, $b_);
- return self::sc_reduce($a_);
- }
-
- /**
- * @param string $x
- * @param string $y
- * @return string
- * @throws SodiumException
- */
- public static function scalar_sub($x, $y)
- {
- $yn = self::scalar_negate($y);
- return self::scalar_add($x, $yn);
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core_Ed25519', false)) {
+ return;
+}
+if (!class_exists('ParagonIE_Sodium_Core_Curve25519', false)) {
+ require_once dirname(__FILE__) . '/Curve25519.php';
+}
+
+/**
+ * Class ParagonIE_Sodium_Core_Ed25519
+ */
+abstract class ParagonIE_Sodium_Core_Ed25519 extends ParagonIE_Sodium_Core_Curve25519
+{
+ const KEYPAIR_BYTES = 96;
+ const SEED_BYTES = 32;
+ const SCALAR_BYTES = 32;
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @return string (96 bytes)
+ * @throws Exception
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function keypair()
+ {
+ $seed = random_bytes(self::SEED_BYTES);
+ $pk = '';
+ $sk = '';
+ self::seed_keypair($pk, $sk, $seed);
+ return $sk . $pk;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $pk
+ * @param string $sk
+ * @param string $seed
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function seed_keypair(&$pk, &$sk, $seed)
+ {
+ if (self::strlen($seed) !== self::SEED_BYTES) {
+ throw new RangeException('crypto_sign keypair seed must be 32 bytes long');
+ }
+
+ /** @var string $pk */
+ $pk = self::publickey_from_secretkey($seed);
+ $sk = $seed . $pk;
+ return $sk;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $keypair
+ * @return string
+ * @throws TypeError
+ */
+ public static function secretkey($keypair)
+ {
+ if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
+ throw new RangeException('crypto_sign keypair must be 96 bytes long');
+ }
+ return self::substr($keypair, 0, 64);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $keypair
+ * @return string
+ * @throws TypeError
+ */
+ public static function publickey($keypair)
+ {
+ if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
+ throw new RangeException('crypto_sign keypair must be 96 bytes long');
+ }
+ return self::substr($keypair, 64, 32);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function publickey_from_secretkey($sk)
+ {
+ /** @var string $sk */
+ $sk = hash('sha512', self::substr($sk, 0, 32), true);
+ $sk[0] = self::intToChr(
+ self::chrToInt($sk[0]) & 248
+ );
+ $sk[31] = self::intToChr(
+ (self::chrToInt($sk[31]) & 63) | 64
+ );
+ return self::sk_to_pk($sk);
+ }
+
+ /**
+ * @param string $pk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function pk_to_curve25519($pk)
+ {
+ if (self::small_order($pk)) {
+ throw new SodiumException('Public key is on a small order');
+ }
+ $A = self::ge_frombytes_negate_vartime(self::substr($pk, 0, 32));
+ $p1 = self::ge_mul_l($A);
+ if (!self::fe_isnonzero($p1->X)) {
+ throw new SodiumException('Unexpected zero result');
+ }
+
+ # fe_1(one_minus_y);
+ # fe_sub(one_minus_y, one_minus_y, A.Y);
+ # fe_invert(one_minus_y, one_minus_y);
+ $one_minux_y = self::fe_invert(
+ self::fe_sub(
+ self::fe_1(),
+ $A->Y
+ )
+ );
+
+ # fe_1(x);
+ # fe_add(x, x, A.Y);
+ # fe_mul(x, x, one_minus_y);
+ $x = self::fe_mul(
+ self::fe_add(self::fe_1(), $A->Y),
+ $one_minux_y
+ );
+
+ # fe_tobytes(curve25519_pk, x);
+ return self::fe_tobytes($x);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sk_to_pk($sk)
+ {
+ return self::ge_p3_tobytes(
+ self::ge_scalarmult_base(
+ self::substr($sk, 0, 32)
+ )
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sign($message, $sk)
+ {
+ /** @var string $signature */
+ $signature = self::sign_detached($message, $sk);
+ return $signature . $message;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message A signed message
+ * @param string $pk Public key
+ * @return string Message (without signature)
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sign_open($message, $pk)
+ {
+ /** @var string $signature */
+ $signature = self::substr($message, 0, 64);
+
+ /** @var string $message */
+ $message = self::substr($message, 64);
+
+ if (self::verify_detached($signature, $message, $pk)) {
+ return $message;
+ }
+ throw new SodiumException('Invalid signature');
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sign_detached($message, $sk)
+ {
+ # crypto_hash_sha512(az, sk, 32);
+ $az = hash('sha512', self::substr($sk, 0, 32), true);
+
+ # az[0] &= 248;
+ # az[31] &= 63;
+ # az[31] |= 64;
+ $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
+ $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
+
+ # crypto_hash_sha512_init(&hs);
+ # crypto_hash_sha512_update(&hs, az + 32, 32);
+ # crypto_hash_sha512_update(&hs, m, mlen);
+ # crypto_hash_sha512_final(&hs, nonce);
+ $hs = hash_init('sha512');
+ hash_update($hs, self::substr($az, 32, 32));
+ hash_update($hs, $message);
+ $nonceHash = hash_final($hs, true);
+
+ # memmove(sig + 32, sk + 32, 32);
+ $pk = self::substr($sk, 32, 32);
+
+ # sc_reduce(nonce);
+ # ge_scalarmult_base(&R, nonce);
+ # ge_p3_tobytes(sig, &R);
+ $nonce = self::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
+ $sig = self::ge_p3_tobytes(
+ self::ge_scalarmult_base($nonce)
+ );
+
+ # crypto_hash_sha512_init(&hs);
+ # crypto_hash_sha512_update(&hs, sig, 64);
+ # crypto_hash_sha512_update(&hs, m, mlen);
+ # crypto_hash_sha512_final(&hs, hram);
+ $hs = hash_init('sha512');
+ hash_update($hs, self::substr($sig, 0, 32));
+ hash_update($hs, self::substr($pk, 0, 32));
+ hash_update($hs, $message);
+ $hramHash = hash_final($hs, true);
+
+ # sc_reduce(hram);
+ # sc_muladd(sig + 32, hram, az, nonce);
+ $hram = self::sc_reduce($hramHash);
+ $sigAfter = self::sc_muladd($hram, $az, $nonce);
+ $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
+
+ try {
+ ParagonIE_Sodium_Compat::memzero($az);
+ } catch (SodiumException $ex) {
+ $az = null;
+ }
+ return $sig;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $sig
+ * @param string $message
+ * @param string $pk
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function verify_detached($sig, $message, $pk)
+ {
+ if (self::strlen($sig) < 64) {
+ throw new SodiumException('Signature is too short');
+ }
+ if ((self::chrToInt($sig[63]) & 240) && self::check_S_lt_L(self::substr($sig, 32, 32))) {
+ throw new SodiumException('S < L - Invalid signature');
+ }
+ if (self::small_order($sig)) {
+ throw new SodiumException('Signature is on too small of an order');
+ }
+ if ((self::chrToInt($sig[63]) & 224) !== 0) {
+ throw new SodiumException('Invalid signature');
+ }
+ $d = 0;
+ for ($i = 0; $i < 32; ++$i) {
+ $d |= self::chrToInt($pk[$i]);
+ }
+ if ($d === 0) {
+ throw new SodiumException('All zero public key');
+ }
+
+ /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
+ $orig = ParagonIE_Sodium_Compat::$fastMult;
+
+ // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
+ ParagonIE_Sodium_Compat::$fastMult = true;
+
+ /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A */
+ $A = self::ge_frombytes_negate_vartime($pk);
+
+ /** @var string $hDigest */
+ $hDigest = hash(
+ 'sha512',
+ self::substr($sig, 0, 32) .
+ self::substr($pk, 0, 32) .
+ $message,
+ true
+ );
+
+ /** @var string $h */
+ $h = self::sc_reduce($hDigest) . self::substr($hDigest, 32);
+
+ /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P2 $R */
+ $R = self::ge_double_scalarmult_vartime(
+ $h,
+ $A,
+ self::substr($sig, 32)
+ );
+
+ /** @var string $rcheck */
+ $rcheck = self::ge_tobytes($R);
+
+ // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
+ ParagonIE_Sodium_Compat::$fastMult = $orig;
+
+ return self::verify_32($rcheck, self::substr($sig, 0, 32));
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $S
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function check_S_lt_L($S)
+ {
+ if (self::strlen($S) < 32) {
+ throw new SodiumException('Signature must be 32 bytes');
+ }
+ $L = array(
+ 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58,
+ 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10
+ );
+ $c = 0;
+ $n = 1;
+ $i = 32;
+
+ /** @var array<int, int> $L */
+ do {
+ --$i;
+ $x = self::chrToInt($S[$i]);
+ $c |= (
+ (($x - $L[$i]) >> 8) & $n
+ );
+ $n &= (
+ (($x ^ $L[$i]) - 1) >> 8
+ );
+ } while ($i !== 0);
+
+ return $c === 0;
+ }
+
+ /**
+ * @param string $R
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function small_order($R)
+ {
+ /** @var array<int, array<int, int>> $blocklist */
+ $blocklist = array(
+ /* 0 (order 4) */
+ array(
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ ),
+ /* 1 (order 1) */
+ array(
+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ ),
+ /* 2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
+ array(
+ 0x26, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
+ 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
+ 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
+ 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x05
+ ),
+ /* 55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
+ array(
+ 0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
+ 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
+ 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
+ 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0x7a
+ ),
+ /* p-1 (order 2) */
+ array(
+ 0x13, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
+ 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
+ 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
+ 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x85
+ ),
+ /* p (order 4) */
+ array(
+ 0xb4, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
+ 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
+ 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
+ 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0xfa
+ ),
+ /* p+1 (order 1) */
+ array(
+ 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
+ ),
+ /* p+2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
+ array(
+ 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
+ ),
+ /* p+55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
+ array(
+ 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
+ ),
+ /* 2p-1 (order 2) */
+ array(
+ 0xd9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ ),
+ /* 2p (order 4) */
+ array(
+ 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ ),
+ /* 2p+1 (order 1) */
+ array(
+ 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ )
+ );
+ /** @var int $countBlocklist */
+ $countBlocklist = count($blocklist);
+
+ for ($i = 0; $i < $countBlocklist; ++$i) {
+ $c = 0;
+ for ($j = 0; $j < 32; ++$j) {
+ $c |= self::chrToInt($R[$j]) ^ (int) $blocklist[$i][$j];
+ }
+ if ($c === 0) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalar_complement($s)
+ {
+ $t_ = self::L . str_repeat("\x00", 32);
+ sodium_increment($t_);
+ $s_ = $s . str_repeat("\x00", 32);
+ ParagonIE_Sodium_Compat::sub($t_, $s_);
+ return self::sc_reduce($t_);
+ }
+
+ /**
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalar_random()
+ {
+ do {
+ $r = ParagonIE_Sodium_Compat::randombytes_buf(self::SCALAR_BYTES);
+ $r[self::SCALAR_BYTES - 1] = self::intToChr(
+ self::chrToInt($r[self::SCALAR_BYTES - 1]) & 0x1f
+ );
+ } while (
+ !self::check_S_lt_L($r) || ParagonIE_Sodium_Compat::is_zero($r)
+ );
+ return $r;
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalar_negate($s)
+ {
+ $t_ = self::L . str_repeat("\x00", 32) ;
+ $s_ = $s . str_repeat("\x00", 32) ;
+ ParagonIE_Sodium_Compat::sub($t_, $s_);
+ return self::sc_reduce($t_);
+ }
+
+ /**
+ * @param string $a
+ * @param string $b
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalar_add($a, $b)
+ {
+ $a_ = $a . str_repeat("\x00", 32);
+ $b_ = $b . str_repeat("\x00", 32);
+ ParagonIE_Sodium_Compat::add($a_, $b_);
+ return self::sc_reduce($a_);
+ }
+
+ /**
+ * @param string $x
+ * @param string $y
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalar_sub($x, $y)
+ {
+ $yn = self::scalar_negate($y);
+ return self::scalar_add($x, $yn);
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php b/vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php
index 4b64e04..cfaeb0b 100644
--- a/vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php
+++ b/vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php
@@ -210,43 +210,43 @@ class ParagonIE_Sodium_Core_Poly1305_State extends ParagonIE_Sodium_Core_Util
/* h *= r */
$d0 = (
- self::mul($h0, $r0, 25) +
- self::mul($s4, $h1, 26) +
- self::mul($s3, $h2, 26) +
- self::mul($s2, $h3, 26) +
- self::mul($s1, $h4, 26)
+ self::mul($h0, $r0, 27) +
+ self::mul($s4, $h1, 27) +
+ self::mul($s3, $h2, 27) +
+ self::mul($s2, $h3, 27) +
+ self::mul($s1, $h4, 27)
);
$d1 = (
- self::mul($h0, $r1, 25) +
- self::mul($h1, $r0, 25) +
- self::mul($s4, $h2, 26) +
- self::mul($s3, $h3, 26) +
- self::mul($s2, $h4, 26)
+ self::mul($h0, $r1, 27) +
+ self::mul($h1, $r0, 27) +
+ self::mul($s4, $h2, 27) +
+ self::mul($s3, $h3, 27) +
+ self::mul($s2, $h4, 27)
);
$d2 = (
- self::mul($h0, $r2, 25) +
- self::mul($h1, $r1, 25) +
- self::mul($h2, $r0, 25) +
- self::mul($s4, $h3, 26) +
- self::mul($s3, $h4, 26)
+ self::mul($h0, $r2, 27) +
+ self::mul($h1, $r1, 27) +
+ self::mul($h2, $r0, 27) +
+ self::mul($s4, $h3, 27) +
+ self::mul($s3, $h4, 27)
);
$d3 = (
- self::mul($h0, $r3, 25) +
- self::mul($h1, $r2, 25) +
- self::mul($h2, $r1, 25) +
- self::mul($h3, $r0, 25) +
- self::mul($s4, $h4, 26)
+ self::mul($h0, $r3, 27) +
+ self::mul($h1, $r2, 27) +
+ self::mul($h2, $r1, 27) +
+ self::mul($h3, $r0, 27) +
+ self::mul($s4, $h4, 27)
);
$d4 = (
- self::mul($h0, $r4, 25) +
- self::mul($h1, $r3, 25) +
- self::mul($h2, $r2, 25) +
- self::mul($h3, $r1, 25) +
- self::mul($h4, $r0, 25)
+ self::mul($h0, $r4, 27) +
+ self::mul($h1, $r3, 27) +
+ self::mul($h2, $r2, 27) +
+ self::mul($h3, $r1, 27) +
+ self::mul($h4, $r0, 27)
);
/* (partial) h %= p */
diff --git a/vendor/paragonie/sodium_compat/src/Core/Ristretto255.php b/vendor/paragonie/sodium_compat/src/Core/Ristretto255.php
index 27dbbaa..2727260 100644
--- a/vendor/paragonie/sodium_compat/src/Core/Ristretto255.php
+++ b/vendor/paragonie/sodium_compat/src/Core/Ristretto255.php
@@ -1,707 +1,707 @@
-<?php
-
-/**
- * Class ParagonIE_Sodium_Core_Ristretto255
- */
-class ParagonIE_Sodium_Core_Ristretto255 extends ParagonIE_Sodium_Core_Ed25519
-{
- const crypto_core_ristretto255_HASHBYTES = 64;
- const HASH_SC_L = 48;
- const CORE_H2C_SHA256 = 1;
- const CORE_H2C_SHA512 = 2;
-
- /**
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @param int $b
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- */
- public static function fe_cneg(ParagonIE_Sodium_Core_Curve25519_Fe $f, $b)
- {
- $negf = self::fe_neg($f);
- return self::fe_cmov($f, $negf, $b);
- }
-
- /**
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return ParagonIE_Sodium_Core_Curve25519_Fe
- * @throws SodiumException
- */
- public static function fe_abs(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- return self::fe_cneg($f, self::fe_isnegative($f));
- }
-
- /**
- * Returns 0 if this field element results in all NUL bytes.
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
- * @return int
- * @throws SodiumException
- */
- public static function fe_iszero(ParagonIE_Sodium_Core_Curve25519_Fe $f)
- {
- static $zero;
- if ($zero === null) {
- $zero = str_repeat("\x00", 32);
- }
- /** @var string $zero */
- $str = self::fe_tobytes($f);
-
- $d = 0;
- for ($i = 0; $i < 32; ++$i) {
- $d |= self::chrToInt($str[$i]);
- }
- return (($d - 1) >> 31) & 1;
- }
-
-
- /**
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $u
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $v
- * @return array{x: ParagonIE_Sodium_Core_Curve25519_Fe, nonsquare: int}
- *
- * @throws SodiumException
- */
- public static function ristretto255_sqrt_ratio_m1(
- ParagonIE_Sodium_Core_Curve25519_Fe $u,
- ParagonIE_Sodium_Core_Curve25519_Fe $v
- ) {
- $sqrtm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1);
-
- $v3 = self::fe_mul(
- self::fe_sq($v),
- $v
- ); /* v3 = v^3 */
- $x = self::fe_mul(
- self::fe_mul(
- self::fe_sq($v3),
- $u
- ),
- $v
- ); /* x = uv^7 */
-
- $x = self::fe_mul(
- self::fe_mul(
- self::fe_pow22523($x), /* x = (uv^7)^((q-5)/8) */
- $v3
- ),
- $u
- ); /* x = uv^3(uv^7)^((q-5)/8) */
-
- $vxx = self::fe_mul(
- self::fe_sq($x),
- $v
- ); /* vx^2 */
-
- $m_root_check = self::fe_sub($vxx, $u); /* vx^2-u */
- $p_root_check = self::fe_add($vxx, $u); /* vx^2+u */
- $f_root_check = self::fe_mul($u, $sqrtm1); /* u*sqrt(-1) */
- $f_root_check = self::fe_add($vxx, $f_root_check); /* vx^2+u*sqrt(-1) */
-
- $has_m_root = self::fe_iszero($m_root_check);
- $has_p_root = self::fe_iszero($p_root_check);
- $has_f_root = self::fe_iszero($f_root_check);
-
- $x_sqrtm1 = self::fe_mul($x, $sqrtm1); /* x*sqrt(-1) */
-
- $x = self::fe_abs(
- self::fe_cmov($x, $x_sqrtm1, $has_p_root | $has_f_root)
- );
- return array(
- 'x' => $x,
- 'nonsquare' => $has_m_root | $has_p_root
- );
- }
-
- /**
- * @param string $s
- * @return int
- * @throws SodiumException
- */
- public static function ristretto255_point_is_canonical($s)
- {
- $c = (self::chrToInt($s[31]) & 0x7f) ^ 0x7f;
- for ($i = 30; $i > 0; --$i) {
- $c |= self::chrToInt($s[$i]) ^ 0xff;
- }
- $c = ($c - 1) >> 8;
- $d = (0xed - 1 - self::chrToInt($s[0])) >> 8;
- $e = self::chrToInt($s[31]) >> 7;
-
- return 1 - ((($c & $d) | $e | self::chrToInt($s[0])) & 1);
- }
-
- /**
- * @param string $s
- * @param bool $skipCanonicalCheck
- * @return array{h: ParagonIE_Sodium_Core_Curve25519_Ge_P3, res: int}
- * @throws SodiumException
- */
- public static function ristretto255_frombytes($s, $skipCanonicalCheck = false)
- {
- if (!$skipCanonicalCheck) {
- if (!self::ristretto255_point_is_canonical($s)) {
- throw new SodiumException('S is not canonical');
- }
- }
-
- $s_ = self::fe_frombytes($s);
- $ss = self::fe_sq($s_); /* ss = s^2 */
-
- $u1 = self::fe_sub(self::fe_1(), $ss); /* u1 = 1-ss */
- $u1u1 = self::fe_sq($u1); /* u1u1 = u1^2 */
-
- $u2 = self::fe_add(self::fe_1(), $ss); /* u2 = 1+ss */
- $u2u2 = self::fe_sq($u2); /* u2u2 = u2^2 */
-
- $v = self::fe_mul(
- ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d),
- $u1u1
- ); /* v = d*u1^2 */
- $v = self::fe_neg($v); /* v = -d*u1^2 */
- $v = self::fe_sub($v, $u2u2); /* v = -(d*u1^2)-u2^2 */
- $v_u2u2 = self::fe_mul($v, $u2u2); /* v_u2u2 = v*u2^2 */
-
- // fe25519_1(one);
- // notsquare = ristretto255_sqrt_ratio_m1(inv_sqrt, one, v_u2u2);
- $one = self::fe_1();
- $result = self::ristretto255_sqrt_ratio_m1($one, $v_u2u2);
- $inv_sqrt = $result['x'];
- $notsquare = $result['nonsquare'];
-
- $h = new ParagonIE_Sodium_Core_Curve25519_Ge_P3();
-
- $h->X = self::fe_mul($inv_sqrt, $u2);
- $h->Y = self::fe_mul(self::fe_mul($inv_sqrt, $h->X), $v);
-
- $h->X = self::fe_mul($h->X, $s_);
- $h->X = self::fe_abs(
- self::fe_add($h->X, $h->X)
- );
- $h->Y = self::fe_mul($u1, $h->Y);
- $h->Z = self::fe_1();
- $h->T = self::fe_mul($h->X, $h->Y);
-
- $res = - ((1 - $notsquare) | self::fe_isnegative($h->T) | self::fe_iszero($h->Y));
- return array('h' => $h, 'res' => $res);
- }
-
- /**
- * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_p3_tobytes(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h)
- {
- $sqrtm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1);
- $invsqrtamd = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$invsqrtamd);
-
- $u1 = self::fe_add($h->Z, $h->Y); /* u1 = Z+Y */
- $zmy = self::fe_sub($h->Z, $h->Y); /* zmy = Z-Y */
- $u1 = self::fe_mul($u1, $zmy); /* u1 = (Z+Y)*(Z-Y) */
- $u2 = self::fe_mul($h->X, $h->Y); /* u2 = X*Y */
-
- $u1_u2u2 = self::fe_mul(self::fe_sq($u2), $u1); /* u1_u2u2 = u1*u2^2 */
- $one = self::fe_1();
-
- // fe25519_1(one);
- // (void) ristretto255_sqrt_ratio_m1(inv_sqrt, one, u1_u2u2);
- $result = self::ristretto255_sqrt_ratio_m1($one, $u1_u2u2);
- $inv_sqrt = $result['x'];
-
- $den1 = self::fe_mul($inv_sqrt, $u1); /* den1 = inv_sqrt*u1 */
- $den2 = self::fe_mul($inv_sqrt, $u2); /* den2 = inv_sqrt*u2 */
- $z_inv = self::fe_mul($h->T, self::fe_mul($den1, $den2)); /* z_inv = den1*den2*T */
-
- $ix = self::fe_mul($h->X, $sqrtm1); /* ix = X*sqrt(-1) */
- $iy = self::fe_mul($h->Y, $sqrtm1); /* iy = Y*sqrt(-1) */
- $eden = self::fe_mul($den1, $invsqrtamd);
-
- $t_z_inv = self::fe_mul($h->T, $z_inv); /* t_z_inv = T*z_inv */
- $rotate = self::fe_isnegative($t_z_inv);
-
- $x_ = self::fe_copy($h->X);
- $y_ = self::fe_copy($h->Y);
- $den_inv = self::fe_copy($den2);
-
- $x_ = self::fe_cmov($x_, $iy, $rotate);
- $y_ = self::fe_cmov($y_, $ix, $rotate);
- $den_inv = self::fe_cmov($den_inv, $eden, $rotate);
-
- $x_z_inv = self::fe_mul($x_, $z_inv);
- $y_ = self::fe_cneg($y_, self::fe_isnegative($x_z_inv));
-
-
- // fe25519_sub(s_, h->Z, y_);
- // fe25519_mul(s_, den_inv, s_);
- // fe25519_abs(s_, s_);
- // fe25519_tobytes(s, s_);
- return self::fe_tobytes(
- self::fe_abs(
- self::fe_mul(
- $den_inv,
- self::fe_sub($h->Z, $y_)
- )
- )
- );
- }
-
- /**
- * @param ParagonIE_Sodium_Core_Curve25519_Fe $t
- * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
- *
- * @throws SodiumException
- */
- public static function ristretto255_elligator(ParagonIE_Sodium_Core_Curve25519_Fe $t)
- {
- $sqrtm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1);
- $onemsqd = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$onemsqd);
- $d = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d);
- $sqdmone = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqdmone);
- $sqrtadm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtadm1);
-
- $one = self::fe_1();
- $r = self::fe_mul($sqrtm1, self::fe_sq($t)); /* r = sqrt(-1)*t^2 */
- $u = self::fe_mul(self::fe_add($r, $one), $onemsqd); /* u = (r+1)*(1-d^2) */
- $c = self::fe_neg(self::fe_1()); /* c = -1 */
- $rpd = self::fe_add($r, $d); /* rpd = r+d */
-
- $v = self::fe_mul(
- self::fe_sub(
- $c,
- self::fe_mul($r, $d)
- ),
- $rpd
- ); /* v = (c-r*d)*(r+d) */
-
- $result = self::ristretto255_sqrt_ratio_m1($u, $v);
- $s = $result['x'];
- $wasnt_square = 1 - $result['nonsquare'];
-
- $s_prime = self::fe_neg(
- self::fe_abs(
- self::fe_mul($s, $t)
- )
- ); /* s_prime = -|s*t| */
- $s = self::fe_cmov($s, $s_prime, $wasnt_square);
- $c = self::fe_cmov($c, $r, $wasnt_square);
-
- // fe25519_sub(n, r, one); /* n = r-1 */
- // fe25519_mul(n, n, c); /* n = c*(r-1) */
- // fe25519_mul(n, n, ed25519_sqdmone); /* n = c*(r-1)*(d-1)^2 */
- // fe25519_sub(n, n, v); /* n = c*(r-1)*(d-1)^2-v */
- $n = self::fe_sub(
- self::fe_mul(
- self::fe_mul(
- self::fe_sub($r, $one),
- $c
- ),
- $sqdmone
- ),
- $v
- ); /* n = c*(r-1)*(d-1)^2-v */
-
- $w0 = self::fe_mul(
- self::fe_add($s, $s),
- $v
- ); /* w0 = 2s*v */
-
- $w1 = self::fe_mul($n, $sqrtadm1); /* w1 = n*sqrt(ad-1) */
- $ss = self::fe_sq($s); /* ss = s^2 */
- $w2 = self::fe_sub($one, $ss); /* w2 = 1-s^2 */
- $w3 = self::fe_add($one, $ss); /* w3 = 1+s^2 */
-
- return new ParagonIE_Sodium_Core_Curve25519_Ge_P3(
- self::fe_mul($w0, $w3),
- self::fe_mul($w2, $w1),
- self::fe_mul($w1, $w3),
- self::fe_mul($w0, $w2)
- );
- }
-
- /**
- * @param string $h
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_from_hash($h)
- {
- if (self::strlen($h) !== 64) {
- throw new SodiumException('Hash must be 64 bytes');
- }
- //fe25519_frombytes(r0, h);
- //fe25519_frombytes(r1, h + 32);
- $r0 = self::fe_frombytes(self::substr($h, 0, 32));
- $r1 = self::fe_frombytes(self::substr($h, 32, 32));
-
- //ristretto255_elligator(&p0, r0);
- //ristretto255_elligator(&p1, r1);
- $p0 = self::ristretto255_elligator($r0);
- $p1 = self::ristretto255_elligator($r1);
-
- //ge25519_p3_to_cached(&p1_cached, &p1);
- //ge25519_add_cached(&p_p1p1, &p0, &p1_cached);
- $p_p1p1 = self::ge_add(
- $p0,
- self::ge_p3_to_cached($p1)
- );
-
- //ge25519_p1p1_to_p3(&p, &p_p1p1);
- //ristretto255_p3_tobytes(s, &p);
- return self::ristretto255_p3_tobytes(
- self::ge_p1p1_to_p3($p_p1p1)
- );
- }
-
- /**
- * @param string $p
- * @return int
- * @throws SodiumException
- */
- public static function is_valid_point($p)
- {
- $result = self::ristretto255_frombytes($p);
- if ($result['res'] !== 0) {
- return 0;
- }
- return 1;
- }
-
- /**
- * @param string $p
- * @param string $q
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_add($p, $q)
- {
- $p_res = self::ristretto255_frombytes($p);
- $q_res = self::ristretto255_frombytes($q);
- if ($p_res['res'] !== 0 || $q_res['res'] !== 0) {
- throw new SodiumException('Could not add points');
- }
- $p_p3 = $p_res['h'];
- $q_p3 = $q_res['h'];
- $q_cached = self::ge_p3_to_cached($q_p3);
- $r_p1p1 = self::ge_add($p_p3, $q_cached);
- $r_p3 = self::ge_p1p1_to_p3($r_p1p1);
- return self::ristretto255_p3_tobytes($r_p3);
- }
-
- /**
- * @param string $p
- * @param string $q
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_sub($p, $q)
- {
- $p_res = self::ristretto255_frombytes($p);
- $q_res = self::ristretto255_frombytes($q);
- if ($p_res['res'] !== 0 || $q_res['res'] !== 0) {
- throw new SodiumException('Could not add points');
- }
- $p_p3 = $p_res['h'];
- $q_p3 = $q_res['h'];
- $q_cached = self::ge_p3_to_cached($q_p3);
- $r_p1p1 = self::ge_sub($p_p3, $q_cached);
- $r_p3 = self::ge_p1p1_to_p3($r_p1p1);
- return self::ristretto255_p3_tobytes($r_p3);
- }
-
-
- /**
- * @param int $hLen
- * @param ?string $ctx
- * @param string $msg
- * @return string
- * @throws SodiumException
- * @psalm-suppress PossiblyInvalidArgument hash API
- */
- protected static function h2c_string_to_hash_sha256($hLen, $ctx, $msg)
- {
- $h = array_fill(0, $hLen, 0);
- $ctx_len = !is_null($ctx) ? self::strlen($ctx) : 0;
- if ($hLen > 0xff) {
- throw new SodiumException('Hash must be less than 256 bytes');
- }
-
- if ($ctx_len > 0xff) {
- $st = hash_init('sha256');
- self::hash_update($st, "H2C-OVERSIZE-DST-");
- self::hash_update($st, $ctx);
- $ctx = hash_final($st, true);
- $ctx_len = 32;
- }
- $t = array(0, $hLen, 0);
- $ux = str_repeat("\0", 64);
- $st = hash_init('sha256');
- self::hash_update($st, $ux);
- self::hash_update($st, $msg);
- self::hash_update($st, self::intArrayToString($t));
- self::hash_update($st, $ctx);
- self::hash_update($st, self::intToChr($ctx_len));
- $u0 = hash_final($st, true);
-
- for ($i = 0; $i < $hLen; $i += 64) {
- $ux = self::xorStrings($ux, $u0);
- ++$t[2];
- $st = hash_init('sha256');
- self::hash_update($st, $ux);
- self::hash_update($st, self::intToChr($t[2]));
- self::hash_update($st, $ctx);
- self::hash_update($st, self::intToChr($ctx_len));
- $ux = hash_final($st, true);
- $amount = min($hLen - $i, 64);
- for ($j = 0; $j < $amount; ++$j) {
- $h[$i + $j] = self::chrToInt($ux[$i]);
- }
- }
- return self::intArrayToString(array_slice($h, 0, $hLen));
- }
-
- /**
- * @param int $hLen
- * @param ?string $ctx
- * @param string $msg
- * @return string
- * @throws SodiumException
- * @psalm-suppress PossiblyInvalidArgument hash API
- */
- protected static function h2c_string_to_hash_sha512($hLen, $ctx, $msg)
- {
- $h = array_fill(0, $hLen, 0);
- $ctx_len = !is_null($ctx) ? self::strlen($ctx) : 0;
- if ($hLen > 0xff) {
- throw new SodiumException('Hash must be less than 256 bytes');
- }
-
- if ($ctx_len > 0xff) {
- $st = hash_init('sha256');
- self::hash_update($st, "H2C-OVERSIZE-DST-");
- self::hash_update($st, $ctx);
- $ctx = hash_final($st, true);
- $ctx_len = 32;
- }
- $t = array(0, $hLen, 0);
- $ux = str_repeat("\0", 128);
- $st = hash_init('sha512');
- self::hash_update($st, $ux);
- self::hash_update($st, $msg);
- self::hash_update($st, self::intArrayToString($t));
- self::hash_update($st, $ctx);
- self::hash_update($st, self::intToChr($ctx_len));
- $u0 = hash_final($st, true);
-
- for ($i = 0; $i < $hLen; $i += 128) {
- $ux = self::xorStrings($ux, $u0);
- ++$t[2];
- $st = hash_init('sha512');
- self::hash_update($st, $ux);
- self::hash_update($st, self::intToChr($t[2]));
- self::hash_update($st, $ctx);
- self::hash_update($st, self::intToChr($ctx_len));
- $ux = hash_final($st, true);
- $amount = min($hLen - $i, 128);
- for ($j = 0; $j < $amount; ++$j) {
- $h[$i + $j] = self::chrToInt($ux[$i]);
- }
- }
- return self::intArrayToString(array_slice($h, 0, $hLen));
- }
-
- /**
- * @param int $hLen
- * @param ?string $ctx
- * @param string $msg
- * @param int $hash_alg
- * @return string
- * @throws SodiumException
- */
- public static function h2c_string_to_hash($hLen, $ctx, $msg, $hash_alg)
- {
- switch ($hash_alg) {
- case self::CORE_H2C_SHA256:
- return self::h2c_string_to_hash_sha256($hLen, $ctx, $msg);
- case self::CORE_H2C_SHA512:
- return self::h2c_string_to_hash_sha512($hLen, $ctx, $msg);
- default:
- throw new SodiumException('Invalid H2C hash algorithm');
- }
- }
-
- /**
- * @param ?string $ctx
- * @param string $msg
- * @param int $hash_alg
- * @return string
- * @throws SodiumException
- */
- protected static function _string_to_element($ctx, $msg, $hash_alg)
- {
- return self::ristretto255_from_hash(
- self::h2c_string_to_hash(self::crypto_core_ristretto255_HASHBYTES, $ctx, $msg, $hash_alg)
- );
- }
-
- /**
- * @return string
- * @throws SodiumException
- * @throws Exception
- */
- public static function ristretto255_random()
- {
- return self::ristretto255_from_hash(
- ParagonIE_Sodium_Compat::randombytes_buf(self::crypto_core_ristretto255_HASHBYTES)
- );
- }
-
- /**
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_random()
- {
- return self::scalar_random();
- }
-
- /**
- * @param string $s
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_complement($s)
- {
- return self::scalar_complement($s);
- }
-
-
- /**
- * @param string $s
- * @return string
- */
- public static function ristretto255_scalar_invert($s)
- {
- return self::sc25519_invert($s);
- }
-
- /**
- * @param string $s
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_negate($s)
- {
- return self::scalar_negate($s);
- }
-
- /**
- * @param string $x
- * @param string $y
- * @return string
- */
- public static function ristretto255_scalar_add($x, $y)
- {
- return self::scalar_add($x, $y);
- }
-
- /**
- * @param string $x
- * @param string $y
- * @return string
- */
- public static function ristretto255_scalar_sub($x, $y)
- {
- return self::scalar_sub($x, $y);
- }
-
- /**
- * @param string $x
- * @param string $y
- * @return string
- */
- public static function ristretto255_scalar_mul($x, $y)
- {
- return self::sc25519_mul($x, $y);
- }
-
- /**
- * @param string $ctx
- * @param string $msg
- * @param int $hash_alg
- * @return string
- * @throws SodiumException
- */
- public static function ristretto255_scalar_from_string($ctx, $msg, $hash_alg)
- {
- $h = array_fill(0, 64, 0);
- $h_be = self::stringToIntArray(
- self::h2c_string_to_hash(
- self::HASH_SC_L, $ctx, $msg, $hash_alg
- )
- );
-
- for ($i = 0; $i < self::HASH_SC_L; ++$i) {
- $h[$i] = $h_be[self::HASH_SC_L - 1 - $i];
- }
- return self::ristretto255_scalar_reduce(self::intArrayToString($h));
- }
-
- /**
- * @param string $s
- * @return string
- */
- public static function ristretto255_scalar_reduce($s)
- {
- return self::sc_reduce($s);
- }
-
- /**
- * @param string $n
- * @param string $p
- * @return string
- * @throws SodiumException
- */
- public static function scalarmult_ristretto255($n, $p)
- {
- if (self::strlen($n) !== 32) {
- throw new SodiumException('Scalar must be 32 bytes, ' . self::strlen($p) . ' given.');
- }
- if (self::strlen($p) !== 32) {
- throw new SodiumException('Point must be 32 bytes, ' . self::strlen($p) . ' given.');
- }
- $result = self::ristretto255_frombytes($p);
- if ($result['res'] !== 0) {
- throw new SodiumException('Could not multiply points');
- }
- $P = $result['h'];
-
- $t = self::stringToIntArray($n);
- $t[31] &= 0x7f;
- $Q = self::ge_scalarmult(self::intArrayToString($t), $P);
- $q = self::ristretto255_p3_tobytes($Q);
- if (ParagonIE_Sodium_Compat::is_zero($q)) {
- throw new SodiumException('An unknown error has occurred');
- }
- return $q;
- }
-
- /**
- * @param string $n
- * @return string
- * @throws SodiumException
- */
- public static function scalarmult_ristretto255_base($n)
- {
- $t = self::stringToIntArray($n);
- $t[31] &= 0x7f;
- $Q = self::ge_scalarmult_base(self::intArrayToString($t));
- $q = self::ristretto255_p3_tobytes($Q);
- if (ParagonIE_Sodium_Compat::is_zero($q)) {
- throw new SodiumException('An unknown error has occurred');
- }
- return $q;
- }
-}
+<?php
+
+/**
+ * Class ParagonIE_Sodium_Core_Ristretto255
+ */
+class ParagonIE_Sodium_Core_Ristretto255 extends ParagonIE_Sodium_Core_Ed25519
+{
+ const crypto_core_ristretto255_HASHBYTES = 64;
+ const HASH_SC_L = 48;
+ const CORE_H2C_SHA256 = 1;
+ const CORE_H2C_SHA512 = 2;
+
+ /**
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @param int $b
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ */
+ public static function fe_cneg(ParagonIE_Sodium_Core_Curve25519_Fe $f, $b)
+ {
+ $negf = self::fe_neg($f);
+ return self::fe_cmov($f, $negf, $b);
+ }
+
+ /**
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return ParagonIE_Sodium_Core_Curve25519_Fe
+ * @throws SodiumException
+ */
+ public static function fe_abs(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ return self::fe_cneg($f, self::fe_isnegative($f));
+ }
+
+ /**
+ * Returns 0 if this field element results in all NUL bytes.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $f
+ * @return int
+ * @throws SodiumException
+ */
+ public static function fe_iszero(ParagonIE_Sodium_Core_Curve25519_Fe $f)
+ {
+ static $zero;
+ if ($zero === null) {
+ $zero = str_repeat("\x00", 32);
+ }
+ /** @var string $zero */
+ $str = self::fe_tobytes($f);
+
+ $d = 0;
+ for ($i = 0; $i < 32; ++$i) {
+ $d |= self::chrToInt($str[$i]);
+ }
+ return (($d - 1) >> 31) & 1;
+ }
+
+
+ /**
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $u
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $v
+ * @return array{x: ParagonIE_Sodium_Core_Curve25519_Fe, nonsquare: int}
+ *
+ * @throws SodiumException
+ */
+ public static function ristretto255_sqrt_ratio_m1(
+ ParagonIE_Sodium_Core_Curve25519_Fe $u,
+ ParagonIE_Sodium_Core_Curve25519_Fe $v
+ ) {
+ $sqrtm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1);
+
+ $v3 = self::fe_mul(
+ self::fe_sq($v),
+ $v
+ ); /* v3 = v^3 */
+ $x = self::fe_mul(
+ self::fe_mul(
+ self::fe_sq($v3),
+ $u
+ ),
+ $v
+ ); /* x = uv^7 */
+
+ $x = self::fe_mul(
+ self::fe_mul(
+ self::fe_pow22523($x), /* x = (uv^7)^((q-5)/8) */
+ $v3
+ ),
+ $u
+ ); /* x = uv^3(uv^7)^((q-5)/8) */
+
+ $vxx = self::fe_mul(
+ self::fe_sq($x),
+ $v
+ ); /* vx^2 */
+
+ $m_root_check = self::fe_sub($vxx, $u); /* vx^2-u */
+ $p_root_check = self::fe_add($vxx, $u); /* vx^2+u */
+ $f_root_check = self::fe_mul($u, $sqrtm1); /* u*sqrt(-1) */
+ $f_root_check = self::fe_add($vxx, $f_root_check); /* vx^2+u*sqrt(-1) */
+
+ $has_m_root = self::fe_iszero($m_root_check);
+ $has_p_root = self::fe_iszero($p_root_check);
+ $has_f_root = self::fe_iszero($f_root_check);
+
+ $x_sqrtm1 = self::fe_mul($x, $sqrtm1); /* x*sqrt(-1) */
+
+ $x = self::fe_abs(
+ self::fe_cmov($x, $x_sqrtm1, $has_p_root | $has_f_root)
+ );
+ return array(
+ 'x' => $x,
+ 'nonsquare' => $has_m_root | $has_p_root
+ );
+ }
+
+ /**
+ * @param string $s
+ * @return int
+ * @throws SodiumException
+ */
+ public static function ristretto255_point_is_canonical($s)
+ {
+ $c = (self::chrToInt($s[31]) & 0x7f) ^ 0x7f;
+ for ($i = 30; $i > 0; --$i) {
+ $c |= self::chrToInt($s[$i]) ^ 0xff;
+ }
+ $c = ($c - 1) >> 8;
+ $d = (0xed - 1 - self::chrToInt($s[0])) >> 8;
+ $e = self::chrToInt($s[31]) >> 7;
+
+ return 1 - ((($c & $d) | $e | self::chrToInt($s[0])) & 1);
+ }
+
+ /**
+ * @param string $s
+ * @param bool $skipCanonicalCheck
+ * @return array{h: ParagonIE_Sodium_Core_Curve25519_Ge_P3, res: int}
+ * @throws SodiumException
+ */
+ public static function ristretto255_frombytes($s, $skipCanonicalCheck = false)
+ {
+ if (!$skipCanonicalCheck) {
+ if (!self::ristretto255_point_is_canonical($s)) {
+ throw new SodiumException('S is not canonical');
+ }
+ }
+
+ $s_ = self::fe_frombytes($s);
+ $ss = self::fe_sq($s_); /* ss = s^2 */
+
+ $u1 = self::fe_sub(self::fe_1(), $ss); /* u1 = 1-ss */
+ $u1u1 = self::fe_sq($u1); /* u1u1 = u1^2 */
+
+ $u2 = self::fe_add(self::fe_1(), $ss); /* u2 = 1+ss */
+ $u2u2 = self::fe_sq($u2); /* u2u2 = u2^2 */
+
+ $v = self::fe_mul(
+ ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d),
+ $u1u1
+ ); /* v = d*u1^2 */
+ $v = self::fe_neg($v); /* v = -d*u1^2 */
+ $v = self::fe_sub($v, $u2u2); /* v = -(d*u1^2)-u2^2 */
+ $v_u2u2 = self::fe_mul($v, $u2u2); /* v_u2u2 = v*u2^2 */
+
+ // fe25519_1(one);
+ // notsquare = ristretto255_sqrt_ratio_m1(inv_sqrt, one, v_u2u2);
+ $one = self::fe_1();
+ $result = self::ristretto255_sqrt_ratio_m1($one, $v_u2u2);
+ $inv_sqrt = $result['x'];
+ $notsquare = $result['nonsquare'];
+
+ $h = new ParagonIE_Sodium_Core_Curve25519_Ge_P3();
+
+ $h->X = self::fe_mul($inv_sqrt, $u2);
+ $h->Y = self::fe_mul(self::fe_mul($inv_sqrt, $h->X), $v);
+
+ $h->X = self::fe_mul($h->X, $s_);
+ $h->X = self::fe_abs(
+ self::fe_add($h->X, $h->X)
+ );
+ $h->Y = self::fe_mul($u1, $h->Y);
+ $h->Z = self::fe_1();
+ $h->T = self::fe_mul($h->X, $h->Y);
+
+ $res = - ((1 - $notsquare) | self::fe_isnegative($h->T) | self::fe_iszero($h->Y));
+ return array('h' => $h, 'res' => $res);
+ }
+
+ /**
+ * @param ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_p3_tobytes(ParagonIE_Sodium_Core_Curve25519_Ge_P3 $h)
+ {
+ $sqrtm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1);
+ $invsqrtamd = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$invsqrtamd);
+
+ $u1 = self::fe_add($h->Z, $h->Y); /* u1 = Z+Y */
+ $zmy = self::fe_sub($h->Z, $h->Y); /* zmy = Z-Y */
+ $u1 = self::fe_mul($u1, $zmy); /* u1 = (Z+Y)*(Z-Y) */
+ $u2 = self::fe_mul($h->X, $h->Y); /* u2 = X*Y */
+
+ $u1_u2u2 = self::fe_mul(self::fe_sq($u2), $u1); /* u1_u2u2 = u1*u2^2 */
+ $one = self::fe_1();
+
+ // fe25519_1(one);
+ // (void) ristretto255_sqrt_ratio_m1(inv_sqrt, one, u1_u2u2);
+ $result = self::ristretto255_sqrt_ratio_m1($one, $u1_u2u2);
+ $inv_sqrt = $result['x'];
+
+ $den1 = self::fe_mul($inv_sqrt, $u1); /* den1 = inv_sqrt*u1 */
+ $den2 = self::fe_mul($inv_sqrt, $u2); /* den2 = inv_sqrt*u2 */
+ $z_inv = self::fe_mul($h->T, self::fe_mul($den1, $den2)); /* z_inv = den1*den2*T */
+
+ $ix = self::fe_mul($h->X, $sqrtm1); /* ix = X*sqrt(-1) */
+ $iy = self::fe_mul($h->Y, $sqrtm1); /* iy = Y*sqrt(-1) */
+ $eden = self::fe_mul($den1, $invsqrtamd);
+
+ $t_z_inv = self::fe_mul($h->T, $z_inv); /* t_z_inv = T*z_inv */
+ $rotate = self::fe_isnegative($t_z_inv);
+
+ $x_ = self::fe_copy($h->X);
+ $y_ = self::fe_copy($h->Y);
+ $den_inv = self::fe_copy($den2);
+
+ $x_ = self::fe_cmov($x_, $iy, $rotate);
+ $y_ = self::fe_cmov($y_, $ix, $rotate);
+ $den_inv = self::fe_cmov($den_inv, $eden, $rotate);
+
+ $x_z_inv = self::fe_mul($x_, $z_inv);
+ $y_ = self::fe_cneg($y_, self::fe_isnegative($x_z_inv));
+
+
+ // fe25519_sub(s_, h->Z, y_);
+ // fe25519_mul(s_, den_inv, s_);
+ // fe25519_abs(s_, s_);
+ // fe25519_tobytes(s, s_);
+ return self::fe_tobytes(
+ self::fe_abs(
+ self::fe_mul(
+ $den_inv,
+ self::fe_sub($h->Z, $y_)
+ )
+ )
+ );
+ }
+
+ /**
+ * @param ParagonIE_Sodium_Core_Curve25519_Fe $t
+ * @return ParagonIE_Sodium_Core_Curve25519_Ge_P3
+ *
+ * @throws SodiumException
+ */
+ public static function ristretto255_elligator(ParagonIE_Sodium_Core_Curve25519_Fe $t)
+ {
+ $sqrtm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtm1);
+ $onemsqd = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$onemsqd);
+ $d = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$d);
+ $sqdmone = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqdmone);
+ $sqrtadm1 = ParagonIE_Sodium_Core_Curve25519_Fe::fromArray(self::$sqrtadm1);
+
+ $one = self::fe_1();
+ $r = self::fe_mul($sqrtm1, self::fe_sq($t)); /* r = sqrt(-1)*t^2 */
+ $u = self::fe_mul(self::fe_add($r, $one), $onemsqd); /* u = (r+1)*(1-d^2) */
+ $c = self::fe_neg(self::fe_1()); /* c = -1 */
+ $rpd = self::fe_add($r, $d); /* rpd = r+d */
+
+ $v = self::fe_mul(
+ self::fe_sub(
+ $c,
+ self::fe_mul($r, $d)
+ ),
+ $rpd
+ ); /* v = (c-r*d)*(r+d) */
+
+ $result = self::ristretto255_sqrt_ratio_m1($u, $v);
+ $s = $result['x'];
+ $wasnt_square = 1 - $result['nonsquare'];
+
+ $s_prime = self::fe_neg(
+ self::fe_abs(
+ self::fe_mul($s, $t)
+ )
+ ); /* s_prime = -|s*t| */
+ $s = self::fe_cmov($s, $s_prime, $wasnt_square);
+ $c = self::fe_cmov($c, $r, $wasnt_square);
+
+ // fe25519_sub(n, r, one); /* n = r-1 */
+ // fe25519_mul(n, n, c); /* n = c*(r-1) */
+ // fe25519_mul(n, n, ed25519_sqdmone); /* n = c*(r-1)*(d-1)^2 */
+ // fe25519_sub(n, n, v); /* n = c*(r-1)*(d-1)^2-v */
+ $n = self::fe_sub(
+ self::fe_mul(
+ self::fe_mul(
+ self::fe_sub($r, $one),
+ $c
+ ),
+ $sqdmone
+ ),
+ $v
+ ); /* n = c*(r-1)*(d-1)^2-v */
+
+ $w0 = self::fe_mul(
+ self::fe_add($s, $s),
+ $v
+ ); /* w0 = 2s*v */
+
+ $w1 = self::fe_mul($n, $sqrtadm1); /* w1 = n*sqrt(ad-1) */
+ $ss = self::fe_sq($s); /* ss = s^2 */
+ $w2 = self::fe_sub($one, $ss); /* w2 = 1-s^2 */
+ $w3 = self::fe_add($one, $ss); /* w3 = 1+s^2 */
+
+ return new ParagonIE_Sodium_Core_Curve25519_Ge_P3(
+ self::fe_mul($w0, $w3),
+ self::fe_mul($w2, $w1),
+ self::fe_mul($w1, $w3),
+ self::fe_mul($w0, $w2)
+ );
+ }
+
+ /**
+ * @param string $h
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_from_hash($h)
+ {
+ if (self::strlen($h) !== 64) {
+ throw new SodiumException('Hash must be 64 bytes');
+ }
+ //fe25519_frombytes(r0, h);
+ //fe25519_frombytes(r1, h + 32);
+ $r0 = self::fe_frombytes(self::substr($h, 0, 32));
+ $r1 = self::fe_frombytes(self::substr($h, 32, 32));
+
+ //ristretto255_elligator(&p0, r0);
+ //ristretto255_elligator(&p1, r1);
+ $p0 = self::ristretto255_elligator($r0);
+ $p1 = self::ristretto255_elligator($r1);
+
+ //ge25519_p3_to_cached(&p1_cached, &p1);
+ //ge25519_add_cached(&p_p1p1, &p0, &p1_cached);
+ $p_p1p1 = self::ge_add(
+ $p0,
+ self::ge_p3_to_cached($p1)
+ );
+
+ //ge25519_p1p1_to_p3(&p, &p_p1p1);
+ //ristretto255_p3_tobytes(s, &p);
+ return self::ristretto255_p3_tobytes(
+ self::ge_p1p1_to_p3($p_p1p1)
+ );
+ }
+
+ /**
+ * @param string $p
+ * @return int
+ * @throws SodiumException
+ */
+ public static function is_valid_point($p)
+ {
+ $result = self::ristretto255_frombytes($p);
+ if ($result['res'] !== 0) {
+ return 0;
+ }
+ return 1;
+ }
+
+ /**
+ * @param string $p
+ * @param string $q
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_add($p, $q)
+ {
+ $p_res = self::ristretto255_frombytes($p);
+ $q_res = self::ristretto255_frombytes($q);
+ if ($p_res['res'] !== 0 || $q_res['res'] !== 0) {
+ throw new SodiumException('Could not add points');
+ }
+ $p_p3 = $p_res['h'];
+ $q_p3 = $q_res['h'];
+ $q_cached = self::ge_p3_to_cached($q_p3);
+ $r_p1p1 = self::ge_add($p_p3, $q_cached);
+ $r_p3 = self::ge_p1p1_to_p3($r_p1p1);
+ return self::ristretto255_p3_tobytes($r_p3);
+ }
+
+ /**
+ * @param string $p
+ * @param string $q
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_sub($p, $q)
+ {
+ $p_res = self::ristretto255_frombytes($p);
+ $q_res = self::ristretto255_frombytes($q);
+ if ($p_res['res'] !== 0 || $q_res['res'] !== 0) {
+ throw new SodiumException('Could not add points');
+ }
+ $p_p3 = $p_res['h'];
+ $q_p3 = $q_res['h'];
+ $q_cached = self::ge_p3_to_cached($q_p3);
+ $r_p1p1 = self::ge_sub($p_p3, $q_cached);
+ $r_p3 = self::ge_p1p1_to_p3($r_p1p1);
+ return self::ristretto255_p3_tobytes($r_p3);
+ }
+
+
+ /**
+ * @param int $hLen
+ * @param ?string $ctx
+ * @param string $msg
+ * @return string
+ * @throws SodiumException
+ * @psalm-suppress PossiblyInvalidArgument hash API
+ */
+ protected static function h2c_string_to_hash_sha256($hLen, $ctx, $msg)
+ {
+ $h = array_fill(0, $hLen, 0);
+ $ctx_len = !is_null($ctx) ? self::strlen($ctx) : 0;
+ if ($hLen > 0xff) {
+ throw new SodiumException('Hash must be less than 256 bytes');
+ }
+
+ if ($ctx_len > 0xff) {
+ $st = hash_init('sha256');
+ self::hash_update($st, "H2C-OVERSIZE-DST-");
+ self::hash_update($st, $ctx);
+ $ctx = hash_final($st, true);
+ $ctx_len = 32;
+ }
+ $t = array(0, $hLen, 0);
+ $ux = str_repeat("\0", 64);
+ $st = hash_init('sha256');
+ self::hash_update($st, $ux);
+ self::hash_update($st, $msg);
+ self::hash_update($st, self::intArrayToString($t));
+ self::hash_update($st, $ctx);
+ self::hash_update($st, self::intToChr($ctx_len));
+ $u0 = hash_final($st, true);
+
+ for ($i = 0; $i < $hLen; $i += 64) {
+ $ux = self::xorStrings($ux, $u0);
+ ++$t[2];
+ $st = hash_init('sha256');
+ self::hash_update($st, $ux);
+ self::hash_update($st, self::intToChr($t[2]));
+ self::hash_update($st, $ctx);
+ self::hash_update($st, self::intToChr($ctx_len));
+ $ux = hash_final($st, true);
+ $amount = min($hLen - $i, 64);
+ for ($j = 0; $j < $amount; ++$j) {
+ $h[$i + $j] = self::chrToInt($ux[$i]);
+ }
+ }
+ return self::intArrayToString(array_slice($h, 0, $hLen));
+ }
+
+ /**
+ * @param int $hLen
+ * @param ?string $ctx
+ * @param string $msg
+ * @return string
+ * @throws SodiumException
+ * @psalm-suppress PossiblyInvalidArgument hash API
+ */
+ protected static function h2c_string_to_hash_sha512($hLen, $ctx, $msg)
+ {
+ $h = array_fill(0, $hLen, 0);
+ $ctx_len = !is_null($ctx) ? self::strlen($ctx) : 0;
+ if ($hLen > 0xff) {
+ throw new SodiumException('Hash must be less than 256 bytes');
+ }
+
+ if ($ctx_len > 0xff) {
+ $st = hash_init('sha256');
+ self::hash_update($st, "H2C-OVERSIZE-DST-");
+ self::hash_update($st, $ctx);
+ $ctx = hash_final($st, true);
+ $ctx_len = 32;
+ }
+ $t = array(0, $hLen, 0);
+ $ux = str_repeat("\0", 128);
+ $st = hash_init('sha512');
+ self::hash_update($st, $ux);
+ self::hash_update($st, $msg);
+ self::hash_update($st, self::intArrayToString($t));
+ self::hash_update($st, $ctx);
+ self::hash_update($st, self::intToChr($ctx_len));
+ $u0 = hash_final($st, true);
+
+ for ($i = 0; $i < $hLen; $i += 128) {
+ $ux = self::xorStrings($ux, $u0);
+ ++$t[2];
+ $st = hash_init('sha512');
+ self::hash_update($st, $ux);
+ self::hash_update($st, self::intToChr($t[2]));
+ self::hash_update($st, $ctx);
+ self::hash_update($st, self::intToChr($ctx_len));
+ $ux = hash_final($st, true);
+ $amount = min($hLen - $i, 128);
+ for ($j = 0; $j < $amount; ++$j) {
+ $h[$i + $j] = self::chrToInt($ux[$i]);
+ }
+ }
+ return self::intArrayToString(array_slice($h, 0, $hLen));
+ }
+
+ /**
+ * @param int $hLen
+ * @param ?string $ctx
+ * @param string $msg
+ * @param int $hash_alg
+ * @return string
+ * @throws SodiumException
+ */
+ public static function h2c_string_to_hash($hLen, $ctx, $msg, $hash_alg)
+ {
+ switch ($hash_alg) {
+ case self::CORE_H2C_SHA256:
+ return self::h2c_string_to_hash_sha256($hLen, $ctx, $msg);
+ case self::CORE_H2C_SHA512:
+ return self::h2c_string_to_hash_sha512($hLen, $ctx, $msg);
+ default:
+ throw new SodiumException('Invalid H2C hash algorithm');
+ }
+ }
+
+ /**
+ * @param ?string $ctx
+ * @param string $msg
+ * @param int $hash_alg
+ * @return string
+ * @throws SodiumException
+ */
+ protected static function _string_to_element($ctx, $msg, $hash_alg)
+ {
+ return self::ristretto255_from_hash(
+ self::h2c_string_to_hash(self::crypto_core_ristretto255_HASHBYTES, $ctx, $msg, $hash_alg)
+ );
+ }
+
+ /**
+ * @return string
+ * @throws SodiumException
+ * @throws Exception
+ */
+ public static function ristretto255_random()
+ {
+ return self::ristretto255_from_hash(
+ ParagonIE_Sodium_Compat::randombytes_buf(self::crypto_core_ristretto255_HASHBYTES)
+ );
+ }
+
+ /**
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_random()
+ {
+ return self::scalar_random();
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_complement($s)
+ {
+ return self::scalar_complement($s);
+ }
+
+
+ /**
+ * @param string $s
+ * @return string
+ */
+ public static function ristretto255_scalar_invert($s)
+ {
+ return self::sc25519_invert($s);
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_negate($s)
+ {
+ return self::scalar_negate($s);
+ }
+
+ /**
+ * @param string $x
+ * @param string $y
+ * @return string
+ */
+ public static function ristretto255_scalar_add($x, $y)
+ {
+ return self::scalar_add($x, $y);
+ }
+
+ /**
+ * @param string $x
+ * @param string $y
+ * @return string
+ */
+ public static function ristretto255_scalar_sub($x, $y)
+ {
+ return self::scalar_sub($x, $y);
+ }
+
+ /**
+ * @param string $x
+ * @param string $y
+ * @return string
+ */
+ public static function ristretto255_scalar_mul($x, $y)
+ {
+ return self::sc25519_mul($x, $y);
+ }
+
+ /**
+ * @param string $ctx
+ * @param string $msg
+ * @param int $hash_alg
+ * @return string
+ * @throws SodiumException
+ */
+ public static function ristretto255_scalar_from_string($ctx, $msg, $hash_alg)
+ {
+ $h = array_fill(0, 64, 0);
+ $h_be = self::stringToIntArray(
+ self::h2c_string_to_hash(
+ self::HASH_SC_L, $ctx, $msg, $hash_alg
+ )
+ );
+
+ for ($i = 0; $i < self::HASH_SC_L; ++$i) {
+ $h[$i] = $h_be[self::HASH_SC_L - 1 - $i];
+ }
+ return self::ristretto255_scalar_reduce(self::intArrayToString($h));
+ }
+
+ /**
+ * @param string $s
+ * @return string
+ */
+ public static function ristretto255_scalar_reduce($s)
+ {
+ return self::sc_reduce($s);
+ }
+
+ /**
+ * @param string $n
+ * @param string $p
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalarmult_ristretto255($n, $p)
+ {
+ if (self::strlen($n) !== 32) {
+ throw new SodiumException('Scalar must be 32 bytes, ' . self::strlen($p) . ' given.');
+ }
+ if (self::strlen($p) !== 32) {
+ throw new SodiumException('Point must be 32 bytes, ' . self::strlen($p) . ' given.');
+ }
+ $result = self::ristretto255_frombytes($p);
+ if ($result['res'] !== 0) {
+ throw new SodiumException('Could not multiply points');
+ }
+ $P = $result['h'];
+
+ $t = self::stringToIntArray($n);
+ $t[31] &= 0x7f;
+ $Q = self::ge_scalarmult(self::intArrayToString($t), $P);
+ $q = self::ristretto255_p3_tobytes($Q);
+ if (ParagonIE_Sodium_Compat::is_zero($q)) {
+ throw new SodiumException('An unknown error has occurred');
+ }
+ return $q;
+ }
+
+ /**
+ * @param string $n
+ * @return string
+ * @throws SodiumException
+ */
+ public static function scalarmult_ristretto255_base($n)
+ {
+ $t = self::stringToIntArray($n);
+ $t[31] &= 0x7f;
+ $Q = self::ge_scalarmult_base(self::intArrayToString($t));
+ $q = self::ristretto255_p3_tobytes($Q);
+ if (ParagonIE_Sodium_Compat::is_zero($q)) {
+ throw new SodiumException('An unknown error has occurred');
+ }
+ return $q;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/SipHash.php b/vendor/paragonie/sodium_compat/src/Core/SipHash.php
index 7667527..90c3b69 100644
--- a/vendor/paragonie/sodium_compat/src/Core/SipHash.php
+++ b/vendor/paragonie/sodium_compat/src/Core/SipHash.php
@@ -1,306 +1,306 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core_SipHash', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_SodiumCompat_Core_SipHash
- *
- * Only uses 32-bit arithmetic, while the original SipHash used 64-bit integers
- */
-class ParagonIE_Sodium_Core_SipHash extends ParagonIE_Sodium_Core_Util
-{
- /**
- * @internal You should not use this directly from another application
- *
- * @param int[] $v
- * @return int[]
- *
- */
- public static function sipRound(array $v)
- {
- # v0 += v1;
- list($v[0], $v[1]) = self::add(
- array($v[0], $v[1]),
- array($v[2], $v[3])
- );
-
- # v1=ROTL(v1,13);
- list($v[2], $v[3]) = self::rotl_64((int) $v[2], (int) $v[3], 13);
-
- # v1 ^= v0;
- $v[2] = (int) $v[2] ^ (int) $v[0];
- $v[3] = (int) $v[3] ^ (int) $v[1];
-
- # v0=ROTL(v0,32);
- list($v[0], $v[1]) = self::rotl_64((int) $v[0], (int) $v[1], 32);
-
- # v2 += v3;
- list($v[4], $v[5]) = self::add(
- array((int) $v[4], (int) $v[5]),
- array((int) $v[6], (int) $v[7])
- );
-
- # v3=ROTL(v3,16);
- list($v[6], $v[7]) = self::rotl_64((int) $v[6], (int) $v[7], 16);
-
- # v3 ^= v2;
- $v[6] = (int) $v[6] ^ (int) $v[4];
- $v[7] = (int) $v[7] ^ (int) $v[5];
-
- # v0 += v3;
- list($v[0], $v[1]) = self::add(
- array((int) $v[0], (int) $v[1]),
- array((int) $v[6], (int) $v[7])
- );
-
- # v3=ROTL(v3,21);
- list($v[6], $v[7]) = self::rotl_64((int) $v[6], (int) $v[7], 21);
-
- # v3 ^= v0;
- $v[6] = (int) $v[6] ^ (int) $v[0];
- $v[7] = (int) $v[7] ^ (int) $v[1];
-
- # v2 += v1;
- list($v[4], $v[5]) = self::add(
- array((int) $v[4], (int) $v[5]),
- array((int) $v[2], (int) $v[3])
- );
-
- # v1=ROTL(v1,17);
- list($v[2], $v[3]) = self::rotl_64((int) $v[2], (int) $v[3], 17);
-
- # v1 ^= v2;;
- $v[2] = (int) $v[2] ^ (int) $v[4];
- $v[3] = (int) $v[3] ^ (int) $v[5];
-
- # v2=ROTL(v2,32)
- list($v[4], $v[5]) = self::rotl_64((int) $v[4], (int) $v[5], 32);
-
- return $v;
- }
-
- /**
- * Add two 32 bit integers representing a 64-bit integer.
- *
- * @internal You should not use this directly from another application
- *
- * @param int[] $a
- * @param int[] $b
- * @return array<int, mixed>
- */
- public static function add(array $a, array $b)
- {
- /** @var int $x1 */
- $x1 = $a[1] + $b[1];
- /** @var int $c */
- $c = $x1 >> 32; // Carry if ($a + $b) > 0xffffffff
- /** @var int $x0 */
- $x0 = $a[0] + $b[0] + $c;
- return array(
- $x0 & 0xffffffff,
- $x1 & 0xffffffff
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param int $int0
- * @param int $int1
- * @param int $c
- * @return array<int, mixed>
- */
- public static function rotl_64($int0, $int1, $c)
- {
- $int0 &= 0xffffffff;
- $int1 &= 0xffffffff;
- $c &= 63;
- if ($c === 32) {
- return array($int1, $int0);
- }
- if ($c > 31) {
- $tmp = $int1;
- $int1 = $int0;
- $int0 = $tmp;
- $c &= 31;
- }
- if ($c === 0) {
- return array($int0, $int1);
- }
- return array(
- 0xffffffff & (
- ($int0 << $c)
- |
- ($int1 >> (32 - $c))
- ),
- 0xffffffff & (
- ($int1 << $c)
- |
- ($int0 >> (32 - $c))
- ),
- );
- }
-
- /**
- * Implements Siphash-2-4 using only 32-bit numbers.
- *
- * When we split an int into two, the higher bits go to the lower index.
- * e.g. 0xDEADBEEFAB10C92D becomes [
- * 0 => 0xDEADBEEF,
- * 1 => 0xAB10C92D
- * ].
- *
- * @internal You should not use this directly from another application
- *
- * @param string $in
- * @param string $key
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sipHash24($in, $key)
- {
- $inlen = self::strlen($in);
-
- # /* "somepseudorandomlygeneratedbytes" */
- # u64 v0 = 0x736f6d6570736575ULL;
- # u64 v1 = 0x646f72616e646f6dULL;
- # u64 v2 = 0x6c7967656e657261ULL;
- # u64 v3 = 0x7465646279746573ULL;
- $v = array(
- 0x736f6d65, // 0
- 0x70736575, // 1
- 0x646f7261, // 2
- 0x6e646f6d, // 3
- 0x6c796765, // 4
- 0x6e657261, // 5
- 0x74656462, // 6
- 0x79746573 // 7
- );
- // v0 => $v[0], $v[1]
- // v1 => $v[2], $v[3]
- // v2 => $v[4], $v[5]
- // v3 => $v[6], $v[7]
-
- # u64 k0 = LOAD64_LE( k );
- # u64 k1 = LOAD64_LE( k + 8 );
- $k = array(
- self::load_4(self::substr($key, 4, 4)),
- self::load_4(self::substr($key, 0, 4)),
- self::load_4(self::substr($key, 12, 4)),
- self::load_4(self::substr($key, 8, 4))
- );
- // k0 => $k[0], $k[1]
- // k1 => $k[2], $k[3]
-
- # b = ( ( u64 )inlen ) << 56;
- $b = array(
- $inlen << 24,
- 0
- );
- // See docblock for why the 0th index gets the higher bits.
-
- # v3 ^= k1;
- $v[6] ^= $k[2];
- $v[7] ^= $k[3];
- # v2 ^= k0;
- $v[4] ^= $k[0];
- $v[5] ^= $k[1];
- # v1 ^= k1;
- $v[2] ^= $k[2];
- $v[3] ^= $k[3];
- # v0 ^= k0;
- $v[0] ^= $k[0];
- $v[1] ^= $k[1];
-
- $left = $inlen;
- # for ( ; in != end; in += 8 )
- while ($left >= 8) {
- # m = LOAD64_LE( in );
- $m = array(
- self::load_4(self::substr($in, 4, 4)),
- self::load_4(self::substr($in, 0, 4))
- );
-
- # v3 ^= m;
- $v[6] ^= $m[0];
- $v[7] ^= $m[1];
-
- # SIPROUND;
- # SIPROUND;
- $v = self::sipRound($v);
- $v = self::sipRound($v);
-
- # v0 ^= m;
- $v[0] ^= $m[0];
- $v[1] ^= $m[1];
-
- $in = self::substr($in, 8);
- $left -= 8;
- }
-
- # switch( left )
- # {
- # case 7: b |= ( ( u64 )in[ 6] ) << 48;
- # case 6: b |= ( ( u64 )in[ 5] ) << 40;
- # case 5: b |= ( ( u64 )in[ 4] ) << 32;
- # case 4: b |= ( ( u64 )in[ 3] ) << 24;
- # case 3: b |= ( ( u64 )in[ 2] ) << 16;
- # case 2: b |= ( ( u64 )in[ 1] ) << 8;
- # case 1: b |= ( ( u64 )in[ 0] ); break;
- # case 0: break;
- # }
- switch ($left) {
- case 7:
- $b[0] |= self::chrToInt($in[6]) << 16;
- case 6:
- $b[0] |= self::chrToInt($in[5]) << 8;
- case 5:
- $b[0] |= self::chrToInt($in[4]);
- case 4:
- $b[1] |= self::chrToInt($in[3]) << 24;
- case 3:
- $b[1] |= self::chrToInt($in[2]) << 16;
- case 2:
- $b[1] |= self::chrToInt($in[1]) << 8;
- case 1:
- $b[1] |= self::chrToInt($in[0]);
- case 0:
- break;
- }
- // See docblock for why the 0th index gets the higher bits.
-
- # v3 ^= b;
- $v[6] ^= $b[0];
- $v[7] ^= $b[1];
-
- # SIPROUND;
- # SIPROUND;
- $v = self::sipRound($v);
- $v = self::sipRound($v);
-
- # v0 ^= b;
- $v[0] ^= $b[0];
- $v[1] ^= $b[1];
-
- // Flip the lower 8 bits of v2 which is ($v[4], $v[5]) in our implementation
- # v2 ^= 0xff;
- $v[5] ^= 0xff;
-
- # SIPROUND;
- # SIPROUND;
- # SIPROUND;
- # SIPROUND;
- $v = self::sipRound($v);
- $v = self::sipRound($v);
- $v = self::sipRound($v);
- $v = self::sipRound($v);
-
- # b = v0 ^ v1 ^ v2 ^ v3;
- # STORE64_LE( out, b );
- return self::store32_le($v[1] ^ $v[3] ^ $v[5] ^ $v[7]) .
- self::store32_le($v[0] ^ $v[2] ^ $v[4] ^ $v[6]);
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core_SipHash', false)) {
+ return;
+}
+
+/**
+ * Class ParagonIE_SodiumCompat_Core_SipHash
+ *
+ * Only uses 32-bit arithmetic, while the original SipHash used 64-bit integers
+ */
+class ParagonIE_Sodium_Core_SipHash extends ParagonIE_Sodium_Core_Util
+{
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int[] $v
+ * @return int[]
+ *
+ */
+ public static function sipRound(array $v)
+ {
+ # v0 += v1;
+ list($v[0], $v[1]) = self::add(
+ array($v[0], $v[1]),
+ array($v[2], $v[3])
+ );
+
+ # v1=ROTL(v1,13);
+ list($v[2], $v[3]) = self::rotl_64((int) $v[2], (int) $v[3], 13);
+
+ # v1 ^= v0;
+ $v[2] = (int) $v[2] ^ (int) $v[0];
+ $v[3] = (int) $v[3] ^ (int) $v[1];
+
+ # v0=ROTL(v0,32);
+ list($v[0], $v[1]) = self::rotl_64((int) $v[0], (int) $v[1], 32);
+
+ # v2 += v3;
+ list($v[4], $v[5]) = self::add(
+ array((int) $v[4], (int) $v[5]),
+ array((int) $v[6], (int) $v[7])
+ );
+
+ # v3=ROTL(v3,16);
+ list($v[6], $v[7]) = self::rotl_64((int) $v[6], (int) $v[7], 16);
+
+ # v3 ^= v2;
+ $v[6] = (int) $v[6] ^ (int) $v[4];
+ $v[7] = (int) $v[7] ^ (int) $v[5];
+
+ # v0 += v3;
+ list($v[0], $v[1]) = self::add(
+ array((int) $v[0], (int) $v[1]),
+ array((int) $v[6], (int) $v[7])
+ );
+
+ # v3=ROTL(v3,21);
+ list($v[6], $v[7]) = self::rotl_64((int) $v[6], (int) $v[7], 21);
+
+ # v3 ^= v0;
+ $v[6] = (int) $v[6] ^ (int) $v[0];
+ $v[7] = (int) $v[7] ^ (int) $v[1];
+
+ # v2 += v1;
+ list($v[4], $v[5]) = self::add(
+ array((int) $v[4], (int) $v[5]),
+ array((int) $v[2], (int) $v[3])
+ );
+
+ # v1=ROTL(v1,17);
+ list($v[2], $v[3]) = self::rotl_64((int) $v[2], (int) $v[3], 17);
+
+ # v1 ^= v2;;
+ $v[2] = (int) $v[2] ^ (int) $v[4];
+ $v[3] = (int) $v[3] ^ (int) $v[5];
+
+ # v2=ROTL(v2,32)
+ list($v[4], $v[5]) = self::rotl_64((int) $v[4], (int) $v[5], 32);
+
+ return $v;
+ }
+
+ /**
+ * Add two 32 bit integers representing a 64-bit integer.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int[] $a
+ * @param int[] $b
+ * @return array<int, mixed>
+ */
+ public static function add(array $a, array $b)
+ {
+ /** @var int $x1 */
+ $x1 = $a[1] + $b[1];
+ /** @var int $c */
+ $c = $x1 >> 32; // Carry if ($a + $b) > 0xffffffff
+ /** @var int $x0 */
+ $x0 = $a[0] + $b[0] + $c;
+ return array(
+ $x0 & 0xffffffff,
+ $x1 & 0xffffffff
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int $int0
+ * @param int $int1
+ * @param int $c
+ * @return array<int, mixed>
+ */
+ public static function rotl_64($int0, $int1, $c)
+ {
+ $int0 &= 0xffffffff;
+ $int1 &= 0xffffffff;
+ $c &= 63;
+ if ($c === 32) {
+ return array($int1, $int0);
+ }
+ if ($c > 31) {
+ $tmp = $int1;
+ $int1 = $int0;
+ $int0 = $tmp;
+ $c &= 31;
+ }
+ if ($c === 0) {
+ return array($int0, $int1);
+ }
+ return array(
+ 0xffffffff & (
+ ($int0 << $c)
+ |
+ ($int1 >> (32 - $c))
+ ),
+ 0xffffffff & (
+ ($int1 << $c)
+ |
+ ($int0 >> (32 - $c))
+ ),
+ );
+ }
+
+ /**
+ * Implements Siphash-2-4 using only 32-bit numbers.
+ *
+ * When we split an int into two, the higher bits go to the lower index.
+ * e.g. 0xDEADBEEFAB10C92D becomes [
+ * 0 => 0xDEADBEEF,
+ * 1 => 0xAB10C92D
+ * ].
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $in
+ * @param string $key
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sipHash24($in, $key)
+ {
+ $inlen = self::strlen($in);
+
+ # /* "somepseudorandomlygeneratedbytes" */
+ # u64 v0 = 0x736f6d6570736575ULL;
+ # u64 v1 = 0x646f72616e646f6dULL;
+ # u64 v2 = 0x6c7967656e657261ULL;
+ # u64 v3 = 0x7465646279746573ULL;
+ $v = array(
+ 0x736f6d65, // 0
+ 0x70736575, // 1
+ 0x646f7261, // 2
+ 0x6e646f6d, // 3
+ 0x6c796765, // 4
+ 0x6e657261, // 5
+ 0x74656462, // 6
+ 0x79746573 // 7
+ );
+ // v0 => $v[0], $v[1]
+ // v1 => $v[2], $v[3]
+ // v2 => $v[4], $v[5]
+ // v3 => $v[6], $v[7]
+
+ # u64 k0 = LOAD64_LE( k );
+ # u64 k1 = LOAD64_LE( k + 8 );
+ $k = array(
+ self::load_4(self::substr($key, 4, 4)),
+ self::load_4(self::substr($key, 0, 4)),
+ self::load_4(self::substr($key, 12, 4)),
+ self::load_4(self::substr($key, 8, 4))
+ );
+ // k0 => $k[0], $k[1]
+ // k1 => $k[2], $k[3]
+
+ # b = ( ( u64 )inlen ) << 56;
+ $b = array(
+ $inlen << 24,
+ 0
+ );
+ // See docblock for why the 0th index gets the higher bits.
+
+ # v3 ^= k1;
+ $v[6] ^= $k[2];
+ $v[7] ^= $k[3];
+ # v2 ^= k0;
+ $v[4] ^= $k[0];
+ $v[5] ^= $k[1];
+ # v1 ^= k1;
+ $v[2] ^= $k[2];
+ $v[3] ^= $k[3];
+ # v0 ^= k0;
+ $v[0] ^= $k[0];
+ $v[1] ^= $k[1];
+
+ $left = $inlen;
+ # for ( ; in != end; in += 8 )
+ while ($left >= 8) {
+ # m = LOAD64_LE( in );
+ $m = array(
+ self::load_4(self::substr($in, 4, 4)),
+ self::load_4(self::substr($in, 0, 4))
+ );
+
+ # v3 ^= m;
+ $v[6] ^= $m[0];
+ $v[7] ^= $m[1];
+
+ # SIPROUND;
+ # SIPROUND;
+ $v = self::sipRound($v);
+ $v = self::sipRound($v);
+
+ # v0 ^= m;
+ $v[0] ^= $m[0];
+ $v[1] ^= $m[1];
+
+ $in = self::substr($in, 8);
+ $left -= 8;
+ }
+
+ # switch( left )
+ # {
+ # case 7: b |= ( ( u64 )in[ 6] ) << 48;
+ # case 6: b |= ( ( u64 )in[ 5] ) << 40;
+ # case 5: b |= ( ( u64 )in[ 4] ) << 32;
+ # case 4: b |= ( ( u64 )in[ 3] ) << 24;
+ # case 3: b |= ( ( u64 )in[ 2] ) << 16;
+ # case 2: b |= ( ( u64 )in[ 1] ) << 8;
+ # case 1: b |= ( ( u64 )in[ 0] ); break;
+ # case 0: break;
+ # }
+ switch ($left) {
+ case 7:
+ $b[0] |= self::chrToInt($in[6]) << 16;
+ case 6:
+ $b[0] |= self::chrToInt($in[5]) << 8;
+ case 5:
+ $b[0] |= self::chrToInt($in[4]);
+ case 4:
+ $b[1] |= self::chrToInt($in[3]) << 24;
+ case 3:
+ $b[1] |= self::chrToInt($in[2]) << 16;
+ case 2:
+ $b[1] |= self::chrToInt($in[1]) << 8;
+ case 1:
+ $b[1] |= self::chrToInt($in[0]);
+ case 0:
+ break;
+ }
+ // See docblock for why the 0th index gets the higher bits.
+
+ # v3 ^= b;
+ $v[6] ^= $b[0];
+ $v[7] ^= $b[1];
+
+ # SIPROUND;
+ # SIPROUND;
+ $v = self::sipRound($v);
+ $v = self::sipRound($v);
+
+ # v0 ^= b;
+ $v[0] ^= $b[0];
+ $v[1] ^= $b[1];
+
+ // Flip the lower 8 bits of v2 which is ($v[4], $v[5]) in our implementation
+ # v2 ^= 0xff;
+ $v[5] ^= 0xff;
+
+ # SIPROUND;
+ # SIPROUND;
+ # SIPROUND;
+ # SIPROUND;
+ $v = self::sipRound($v);
+ $v = self::sipRound($v);
+ $v = self::sipRound($v);
+ $v = self::sipRound($v);
+
+ # b = v0 ^ v1 ^ v2 ^ v3;
+ # STORE64_LE( out, b );
+ return self::store32_le($v[1] ^ $v[3] ^ $v[5] ^ $v[7]) .
+ self::store32_le($v[0] ^ $v[2] ^ $v[4] ^ $v[6]);
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Util.php b/vendor/paragonie/sodium_compat/src/Core/Util.php
index 865f544..73e463f 100644
--- a/vendor/paragonie/sodium_compat/src/Core/Util.php
+++ b/vendor/paragonie/sodium_compat/src/Core/Util.php
@@ -1,942 +1,947 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core_Util', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_Sodium_Core_Util
- */
-abstract class ParagonIE_Sodium_Core_Util
-{
- /**
- * @param int $integer
- * @param int $size (16, 32, 64)
- * @return int
- */
- public static function abs($integer, $size = 0)
- {
- /** @var int $realSize */
- $realSize = (PHP_INT_SIZE << 3) - 1;
- if ($size) {
- --$size;
- } else {
- /** @var int $size */
- $size = $realSize;
- }
-
- $negative = -(($integer >> $size) & 1);
- return (int) (
- ($integer ^ $negative)
- +
- (($negative >> $realSize) & 1)
- );
- }
-
- /**
- * Convert a binary string into a hexadecimal string without cache-timing
- * leaks
- *
- * @internal You should not use this directly from another application
- *
- * @param string $binaryString (raw binary)
- * @return string
- * @throws TypeError
- */
- public static function bin2hex($binaryString)
- {
- /* Type checks: */
- if (!is_string($binaryString)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($binaryString) . ' given.');
- }
-
- $hex = '';
- $len = self::strlen($binaryString);
- for ($i = 0; $i < $len; ++$i) {
- /** @var array<int, int> $chunk */
- $chunk = unpack('C', $binaryString[$i]);
- /** @var int $c */
- $c = $chunk[1] & 0xf;
- /** @var int $b */
- $b = $chunk[1] >> 4;
- $hex .= pack(
- 'CC',
- (87 + $b + ((($b - 10) >> 8) & ~38)),
- (87 + $c + ((($c - 10) >> 8) & ~38))
- );
- }
- return $hex;
- }
-
- /**
- * Convert a binary string into a hexadecimal string without cache-timing
- * leaks, returning uppercase letters (as per RFC 4648)
- *
- * @internal You should not use this directly from another application
- *
- * @param string $bin_string (raw binary)
- * @return string
- * @throws TypeError
- */
- public static function bin2hexUpper($bin_string)
- {
- $hex = '';
- $len = self::strlen($bin_string);
- for ($i = 0; $i < $len; ++$i) {
- /** @var array<int, int> $chunk */
- $chunk = unpack('C', $bin_string[$i]);
- /**
- * Lower 16 bits
- *
- * @var int $c
- */
- $c = $chunk[1] & 0xf;
-
- /**
- * Upper 16 bits
- * @var int $b
- */
- $b = $chunk[1] >> 4;
-
- /**
- * Use pack() and binary operators to turn the two integers
- * into hexadecimal characters. We don't use chr() here, because
- * it uses a lookup table internally and we want to avoid
- * cache-timing side-channels.
- */
- $hex .= pack(
- 'CC',
- (55 + $b + ((($b - 10) >> 8) & ~6)),
- (55 + $c + ((($c - 10) >> 8) & ~6))
- );
- }
- return $hex;
- }
-
- /**
- * Cache-timing-safe variant of ord()
- *
- * @internal You should not use this directly from another application
- *
- * @param string $chr
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- public static function chrToInt($chr)
- {
- /* Type checks: */
- if (!is_string($chr)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($chr) . ' given.');
- }
- if (self::strlen($chr) !== 1) {
- throw new SodiumException('chrToInt() expects a string that is exactly 1 character long');
- }
- /** @var array<int, int> $chunk */
- $chunk = unpack('C', $chr);
- return (int) ($chunk[1]);
- }
-
- /**
- * Compares two strings.
- *
- * @internal You should not use this directly from another application
- *
- * @param string $left
- * @param string $right
- * @param int $len
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- public static function compare($left, $right, $len = null)
- {
- $leftLen = self::strlen($left);
- $rightLen = self::strlen($right);
- if ($len === null) {
- $len = max($leftLen, $rightLen);
- $left = str_pad($left, $len, "\x00", STR_PAD_RIGHT);
- $right = str_pad($right, $len, "\x00", STR_PAD_RIGHT);
- }
-
- $gt = 0;
- $eq = 1;
- $i = $len;
- while ($i !== 0) {
- --$i;
- $gt |= ((self::chrToInt($right[$i]) - self::chrToInt($left[$i])) >> 8) & $eq;
- $eq &= ((self::chrToInt($right[$i]) ^ self::chrToInt($left[$i])) - 1) >> 8;
- }
- return ($gt + $gt + $eq) - 1;
- }
-
- /**
- * If a variable does not match a given type, throw a TypeError.
- *
- * @param mixed $mixedVar
- * @param string $type
- * @param int $argumentIndex
- * @throws TypeError
- * @throws SodiumException
- * @return void
- */
- public static function declareScalarType(&$mixedVar = null, $type = 'void', $argumentIndex = 0)
- {
- if (func_num_args() === 0) {
- /* Tautology, by default */
- return;
- }
- if (func_num_args() === 1) {
- throw new TypeError('Declared void, but passed a variable');
- }
- $realType = strtolower(gettype($mixedVar));
- $type = strtolower($type);
- switch ($type) {
- case 'null':
- if ($mixedVar !== null) {
- throw new TypeError('Argument ' . $argumentIndex . ' must be null, ' . $realType . ' given.');
- }
- break;
- case 'integer':
- case 'int':
- $allow = array('int', 'integer');
- if (!in_array($type, $allow)) {
- throw new TypeError('Argument ' . $argumentIndex . ' must be an integer, ' . $realType . ' given.');
- }
- $mixedVar = (int) $mixedVar;
- break;
- case 'boolean':
- case 'bool':
- $allow = array('bool', 'boolean');
- if (!in_array($type, $allow)) {
- throw new TypeError('Argument ' . $argumentIndex . ' must be a boolean, ' . $realType . ' given.');
- }
- $mixedVar = (bool) $mixedVar;
- break;
- case 'string':
- if (!is_string($mixedVar)) {
- throw new TypeError('Argument ' . $argumentIndex . ' must be a string, ' . $realType . ' given.');
- }
- $mixedVar = (string) $mixedVar;
- break;
- case 'decimal':
- case 'double':
- case 'float':
- $allow = array('decimal', 'double', 'float');
- if (!in_array($type, $allow)) {
- throw new TypeError('Argument ' . $argumentIndex . ' must be a float, ' . $realType . ' given.');
- }
- $mixedVar = (float) $mixedVar;
- break;
- case 'object':
- if (!is_object($mixedVar)) {
- throw new TypeError('Argument ' . $argumentIndex . ' must be an object, ' . $realType . ' given.');
- }
- break;
- case 'array':
- if (!is_array($mixedVar)) {
- if (is_object($mixedVar)) {
- if ($mixedVar instanceof ArrayAccess) {
- return;
- }
- }
- throw new TypeError('Argument ' . $argumentIndex . ' must be an array, ' . $realType . ' given.');
- }
- break;
- default:
- throw new SodiumException('Unknown type (' . $realType .') does not match expect type (' . $type . ')');
- }
- }
-
- /**
- * Evaluate whether or not two strings are equal (in constant-time)
- *
- * @param string $left
- * @param string $right
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function hashEquals($left, $right)
- {
- /* Type checks: */
- if (!is_string($left)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($left) . ' given.');
- }
- if (!is_string($right)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($right) . ' given.');
- }
-
- if (is_callable('hash_equals')) {
- return hash_equals($left, $right);
- }
- $d = 0;
- /** @var int $len */
- $len = self::strlen($left);
- if ($len !== self::strlen($right)) {
- return false;
- }
- for ($i = 0; $i < $len; ++$i) {
- $d |= self::chrToInt($left[$i]) ^ self::chrToInt($right[$i]);
- }
-
- if ($d !== 0) {
- return false;
- }
- return $left === $right;
- }
-
- /**
- * Catch hash_update() failures and throw instead of silently proceding
- *
- * @param HashContext|resource &$hs
- * @param string $data
- * @return void
- * @throws SodiumException
- * @psalm-suppress PossiblyInvalidArgument
- */
- protected static function hash_update(&$hs, $data)
- {
- if (!hash_update($hs, $data)) {
- throw new SodiumException('hash_update() failed');
- }
- }
-
- /**
- * Convert a hexadecimal string into a binary string without cache-timing
- * leaks
- *
- * @internal You should not use this directly from another application
- *
- * @param string $hexString
- * @param bool $strictPadding
- * @return string (raw binary)
- * @throws RangeException
- * @throws TypeError
- */
- public static function hex2bin($hexString, $strictPadding = false)
- {
- /* Type checks: */
- if (!is_string($hexString)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($hexString) . ' given.');
- }
-
- /** @var int $hex_pos */
- $hex_pos = 0;
- /** @var string $bin */
- $bin = '';
- /** @var int $c_acc */
- $c_acc = 0;
- /** @var int $hex_len */
- $hex_len = self::strlen($hexString);
- /** @var int $state */
- $state = 0;
- if (($hex_len & 1) !== 0) {
- if ($strictPadding) {
- throw new RangeException(
- 'Expected an even number of hexadecimal characters'
- );
- } else {
- $hexString = '0' . $hexString;
- ++$hex_len;
- }
- }
-
- $chunk = unpack('C*', $hexString);
- while ($hex_pos < $hex_len) {
- ++$hex_pos;
- /** @var int $c */
- $c = $chunk[$hex_pos];
- /** @var int $c_num */
- $c_num = $c ^ 48;
- /** @var int $c_num0 */
- $c_num0 = ($c_num - 10) >> 8;
- /** @var int $c_alpha */
- $c_alpha = ($c & ~32) - 55;
- /** @var int $c_alpha0 */
- $c_alpha0 = (($c_alpha - 10) ^ ($c_alpha - 16)) >> 8;
- if (($c_num0 | $c_alpha0) === 0) {
- throw new RangeException(
- 'hex2bin() only expects hexadecimal characters'
- );
- }
- /** @var int $c_val */
- $c_val = ($c_num0 & $c_num) | ($c_alpha & $c_alpha0);
- if ($state === 0) {
- $c_acc = $c_val * 16;
- } else {
- $bin .= pack('C', $c_acc | $c_val);
- }
- $state ^= 1;
- }
- return $bin;
- }
-
- /**
- * Turn an array of integers into a string
- *
- * @internal You should not use this directly from another application
- *
- * @param array<int, int> $ints
- * @return string
- */
- public static function intArrayToString(array $ints)
- {
- /** @var array<int, int> $args */
- $args = $ints;
- foreach ($args as $i => $v) {
- $args[$i] = (int) ($v & 0xff);
- }
- array_unshift($args, str_repeat('C', count($ints)));
- return (string) (call_user_func_array('pack', $args));
- }
-
- /**
- * Cache-timing-safe variant of ord()
- *
- * @internal You should not use this directly from another application
- *
- * @param int $int
- * @return string
- * @throws TypeError
- */
- public static function intToChr($int)
- {
- return pack('C', $int);
- }
-
- /**
- * Load a 3 character substring into an integer
- *
- * @internal You should not use this directly from another application
- *
- * @param string $string
- * @return int
- * @throws RangeException
- * @throws TypeError
- */
- public static function load_3($string)
- {
- /* Type checks: */
- if (!is_string($string)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($string) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($string) < 3) {
- throw new RangeException(
- 'String must be 3 bytes or more; ' . self::strlen($string) . ' given.'
- );
- }
- /** @var array<int, int> $unpacked */
- $unpacked = unpack('V', $string . "\0");
- return (int) ($unpacked[1] & 0xffffff);
- }
-
- /**
- * Load a 4 character substring into an integer
- *
- * @internal You should not use this directly from another application
- *
- * @param string $string
- * @return int
- * @throws RangeException
- * @throws TypeError
- */
- public static function load_4($string)
- {
- /* Type checks: */
- if (!is_string($string)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($string) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($string) < 4) {
- throw new RangeException(
- 'String must be 4 bytes or more; ' . self::strlen($string) . ' given.'
- );
- }
- /** @var array<int, int> $unpacked */
- $unpacked = unpack('V', $string);
- return (int) ($unpacked[1] & 0xffffffff);
- }
-
- /**
- * Load a 8 character substring into an integer
- *
- * @internal You should not use this directly from another application
- *
- * @param string $string
- * @return int
- * @throws RangeException
- * @throws SodiumException
- * @throws TypeError
- */
- public static function load64_le($string)
- {
- /* Type checks: */
- if (!is_string($string)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($string) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($string) < 4) {
- throw new RangeException(
- 'String must be 4 bytes or more; ' . self::strlen($string) . ' given.'
- );
- }
- if (PHP_VERSION_ID >= 50603 && PHP_INT_SIZE === 8) {
- /** @var array<int, int> $unpacked */
- $unpacked = unpack('P', $string);
- return (int) $unpacked[1];
- }
-
- /** @var int $result */
- $result = (self::chrToInt($string[0]) & 0xff);
- $result |= (self::chrToInt($string[1]) & 0xff) << 8;
- $result |= (self::chrToInt($string[2]) & 0xff) << 16;
- $result |= (self::chrToInt($string[3]) & 0xff) << 24;
- $result |= (self::chrToInt($string[4]) & 0xff) << 32;
- $result |= (self::chrToInt($string[5]) & 0xff) << 40;
- $result |= (self::chrToInt($string[6]) & 0xff) << 48;
- $result |= (self::chrToInt($string[7]) & 0xff) << 56;
- return (int) $result;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $left
- * @param string $right
- * @return int
- * @throws SodiumException
- * @throws TypeError
- */
- public static function memcmp($left, $right)
- {
- if (self::hashEquals($left, $right)) {
- return 0;
- }
- return -1;
- }
-
- /**
- * Multiply two integers in constant-time
- *
- * Micro-architecture timing side-channels caused by how your CPU
- * implements multiplication are best prevented by never using the
- * multiplication operators and ensuring that our code always takes
- * the same number of operations to complete, regardless of the values
- * of $a and $b.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $a
- * @param int $b
- * @param int $size Limits the number of operations (useful for small,
- * constant operands)
- * @return int
- */
- public static function mul($a, $b, $size = 0)
- {
- if (ParagonIE_Sodium_Compat::$fastMult) {
- return (int) ($a * $b);
- }
-
- static $defaultSize = null;
- /** @var int $defaultSize */
- if (!$defaultSize) {
- /** @var int $defaultSize */
- $defaultSize = (PHP_INT_SIZE << 3) - 1;
- }
- if ($size < 1) {
- /** @var int $size */
- $size = $defaultSize;
- }
- /** @var int $size */
-
- $c = 0;
-
- /**
- * Mask is either -1 or 0.
- *
- * -1 in binary looks like 0x1111 ... 1111
- * 0 in binary looks like 0x0000 ... 0000
- *
- * @var int
- */
- $mask = -(($b >> ((int) $defaultSize)) & 1);
-
- /**
- * Ensure $b is a positive integer, without creating
- * a branching side-channel
- *
- * @var int $b
- */
- $b = ($b & ~$mask) | ($mask & -$b);
-
- /**
- * Unless $size is provided:
- *
- * This loop always runs 32 times when PHP_INT_SIZE is 4.
- * This loop always runs 64 times when PHP_INT_SIZE is 8.
- */
- for ($i = $size; $i >= 0; --$i) {
- $c += (int) ($a & -($b & 1));
- $a <<= 1;
- $b >>= 1;
- }
-
- /**
- * If $b was negative, we then apply the same value to $c here.
- * It doesn't matter much if $a was negative; the $c += above would
- * have produced a negative integer to begin with. But a negative $b
- * makes $b >>= 1 never return 0, so we would end up with incorrect
- * results.
- *
- * The end result is what we'd expect from integer multiplication.
- */
- return (int) (($c & ~$mask) | ($mask & -$c));
- }
-
- /**
- * Convert any arbitrary numbers into two 32-bit integers that represent
- * a 64-bit integer.
- *
- * @internal You should not use this directly from another application
- *
- * @param int|float $num
- * @return array<int, int>
- */
- public static function numericTo64BitInteger($num)
- {
- $high = 0;
- /** @var int $low */
- $low = $num & 0xffffffff;
-
- if ((+(abs($num))) >= 1) {
- if ($num > 0) {
- /** @var int $high */
- $high = min((+(floor($num/4294967296))), 4294967295);
- } else {
- /** @var int $high */
- $high = ~~((+(ceil(($num - (+((~~($num)))))/4294967296))));
- }
- }
- return array((int) $high, (int) $low);
- }
-
- /**
- * Store a 24-bit integer into a string, treating it as big-endian.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $int
- * @return string
- * @throws TypeError
- */
- public static function store_3($int)
- {
- /* Type checks: */
- if (!is_int($int)) {
- if (is_numeric($int)) {
- $int = (int) $int;
- } else {
- throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
- }
- }
- /** @var string $packed */
- $packed = pack('N', $int);
- return self::substr($packed, 1, 3);
- }
-
- /**
- * Store a 32-bit integer into a string, treating it as little-endian.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $int
- * @return string
- * @throws TypeError
- */
- public static function store32_le($int)
- {
- /* Type checks: */
- if (!is_int($int)) {
- if (is_numeric($int)) {
- $int = (int) $int;
- } else {
- throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
- }
- }
-
- /** @var string $packed */
- $packed = pack('V', $int);
- return $packed;
- }
-
- /**
- * Store a 32-bit integer into a string, treating it as big-endian.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $int
- * @return string
- * @throws TypeError
- */
- public static function store_4($int)
- {
- /* Type checks: */
- if (!is_int($int)) {
- if (is_numeric($int)) {
- $int = (int) $int;
- } else {
- throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
- }
- }
-
- /** @var string $packed */
- $packed = pack('N', $int);
- return $packed;
- }
-
- /**
- * Stores a 64-bit integer as an string, treating it as little-endian.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $int
- * @return string
- * @throws TypeError
- */
- public static function store64_le($int)
- {
- /* Type checks: */
- if (!is_int($int)) {
- if (is_numeric($int)) {
- $int = (int) $int;
- } else {
- throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
- }
- }
-
- if (PHP_INT_SIZE === 8) {
- if (PHP_VERSION_ID >= 50603) {
- /** @var string $packed */
- $packed = pack('P', $int);
- return $packed;
- }
- return self::intToChr($int & 0xff) .
- self::intToChr(($int >> 8) & 0xff) .
- self::intToChr(($int >> 16) & 0xff) .
- self::intToChr(($int >> 24) & 0xff) .
- self::intToChr(($int >> 32) & 0xff) .
- self::intToChr(($int >> 40) & 0xff) .
- self::intToChr(($int >> 48) & 0xff) .
- self::intToChr(($int >> 56) & 0xff);
- }
- if ($int > PHP_INT_MAX) {
- list($hiB, $int) = self::numericTo64BitInteger($int);
- } else {
- $hiB = 0;
- }
- return
- self::intToChr(($int ) & 0xff) .
- self::intToChr(($int >> 8) & 0xff) .
- self::intToChr(($int >> 16) & 0xff) .
- self::intToChr(($int >> 24) & 0xff) .
- self::intToChr($hiB & 0xff) .
- self::intToChr(($hiB >> 8) & 0xff) .
- self::intToChr(($hiB >> 16) & 0xff) .
- self::intToChr(($hiB >> 24) & 0xff);
- }
-
- /**
- * Safe string length
- *
- * @internal You should not use this directly from another application
- *
- * @ref mbstring.func_overload
- *
- * @param string $str
- * @return int
- * @throws TypeError
- */
- public static function strlen($str)
- {
- /* Type checks: */
- if (!is_string($str)) {
- throw new TypeError('String expected');
- }
-
- return (int) (
- self::isMbStringOverride()
- ? mb_strlen($str, '8bit')
- : strlen($str)
- );
- }
-
- /**
- * Turn a string into an array of integers
- *
- * @internal You should not use this directly from another application
- *
- * @param string $string
- * @return array<int, int>
- * @throws TypeError
- */
- public static function stringToIntArray($string)
- {
- if (!is_string($string)) {
- throw new TypeError('String expected');
- }
- /**
- * @var array<int, int>
- */
- $values = array_values(
- unpack('C*', $string)
- );
- return $values;
- }
-
- /**
- * Safe substring
- *
- * @internal You should not use this directly from another application
- *
- * @ref mbstring.func_overload
- *
- * @param string $str
- * @param int $start
- * @param int $length
- * @return string
- * @throws TypeError
- */
- public static function substr($str, $start = 0, $length = null)
- {
- /* Type checks: */
- if (!is_string($str)) {
- throw new TypeError('String expected');
- }
-
- if ($length === 0) {
- return '';
- }
-
- if (self::isMbStringOverride()) {
- if (PHP_VERSION_ID < 50400 && $length === null) {
- $length = self::strlen($str);
- }
- $sub = (string) mb_substr($str, $start, $length, '8bit');
- } elseif ($length === null) {
- $sub = (string) substr($str, $start);
- } else {
- $sub = (string) substr($str, $start, $length);
- }
- if ($sub !== '') {
- return $sub;
- }
- return '';
- }
-
- /**
- * Compare a 16-character byte string in constant time.
- *
- * @internal You should not use this directly from another application
- *
- * @param string $a
- * @param string $b
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function verify_16($a, $b)
- {
- /* Type checks: */
- if (!is_string($a)) {
- throw new TypeError('String expected');
- }
- if (!is_string($b)) {
- throw new TypeError('String expected');
- }
- return self::hashEquals(
- self::substr($a, 0, 16),
- self::substr($b, 0, 16)
- );
- }
-
- /**
- * Compare a 32-character byte string in constant time.
- *
- * @internal You should not use this directly from another application
- *
- * @param string $a
- * @param string $b
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function verify_32($a, $b)
- {
- /* Type checks: */
- if (!is_string($a)) {
- throw new TypeError('String expected');
- }
- if (!is_string($b)) {
- throw new TypeError('String expected');
- }
- return self::hashEquals(
- self::substr($a, 0, 32),
- self::substr($b, 0, 32)
- );
- }
-
- /**
- * Calculate $a ^ $b for two strings.
- *
- * @internal You should not use this directly from another application
- *
- * @param string $a
- * @param string $b
- * @return string
- * @throws TypeError
- */
- public static function xorStrings($a, $b)
- {
- /* Type checks: */
- if (!is_string($a)) {
- throw new TypeError('Argument 1 must be a string');
- }
- if (!is_string($b)) {
- throw new TypeError('Argument 2 must be a string');
- }
-
- return (string) ($a ^ $b);
- }
-
- /**
- * Returns whether or not mbstring.func_overload is in effect.
- *
- * @internal You should not use this directly from another application
- *
- * Note: MB_OVERLOAD_STRING === 2, but we don't reference the constant
- * (for nuisance-free PHP 8 support)
- *
- * @return bool
- */
- protected static function isMbStringOverride()
- {
- static $mbstring = null;
-
- if ($mbstring === null) {
- $mbstring = extension_loaded('mbstring')
- && defined('MB_OVERLOAD_STRING')
- &&
- ((int) (ini_get('mbstring.func_overload')) & 2);
- // MB_OVERLOAD_STRING === 2
- }
- /** @var bool $mbstring */
-
- return $mbstring;
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core_Util', false)) {
+ return;
+}
+
+/**
+ * Class ParagonIE_Sodium_Core_Util
+ */
+abstract class ParagonIE_Sodium_Core_Util
+{
+ /**
+ * @param int $integer
+ * @param int $size (16, 32, 64)
+ * @return int
+ */
+ public static function abs($integer, $size = 0)
+ {
+ /** @var int $realSize */
+ $realSize = (PHP_INT_SIZE << 3) - 1;
+ if ($size) {
+ --$size;
+ } else {
+ /** @var int $size */
+ $size = $realSize;
+ }
+
+ $negative = -(($integer >> $size) & 1);
+ return (int) (
+ ($integer ^ $negative)
+ +
+ (($negative >> $realSize) & 1)
+ );
+ }
+
+ /**
+ * Convert a binary string into a hexadecimal string without cache-timing
+ * leaks
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $binaryString (raw binary)
+ * @return string
+ * @throws TypeError
+ */
+ public static function bin2hex($binaryString)
+ {
+ /* Type checks: */
+ if (!is_string($binaryString)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($binaryString) . ' given.');
+ }
+
+ $hex = '';
+ $len = self::strlen($binaryString);
+ for ($i = 0; $i < $len; ++$i) {
+ /** @var array<int, int> $chunk */
+ $chunk = unpack('C', $binaryString[$i]);
+ /** @var int $c */
+ $c = $chunk[1] & 0xf;
+ /** @var int $b */
+ $b = $chunk[1] >> 4;
+ $hex .= pack(
+ 'CC',
+ (87 + $b + ((($b - 10) >> 8) & ~38)),
+ (87 + $c + ((($c - 10) >> 8) & ~38))
+ );
+ }
+ return $hex;
+ }
+
+ /**
+ * Convert a binary string into a hexadecimal string without cache-timing
+ * leaks, returning uppercase letters (as per RFC 4648)
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $bin_string (raw binary)
+ * @return string
+ * @throws TypeError
+ */
+ public static function bin2hexUpper($bin_string)
+ {
+ $hex = '';
+ $len = self::strlen($bin_string);
+ for ($i = 0; $i < $len; ++$i) {
+ /** @var array<int, int> $chunk */
+ $chunk = unpack('C', $bin_string[$i]);
+ /**
+ * Lower 16 bits
+ *
+ * @var int $c
+ */
+ $c = $chunk[1] & 0xf;
+
+ /**
+ * Upper 16 bits
+ * @var int $b
+ */
+ $b = $chunk[1] >> 4;
+
+ /**
+ * Use pack() and binary operators to turn the two integers
+ * into hexadecimal characters. We don't use chr() here, because
+ * it uses a lookup table internally and we want to avoid
+ * cache-timing side-channels.
+ */
+ $hex .= pack(
+ 'CC',
+ (55 + $b + ((($b - 10) >> 8) & ~6)),
+ (55 + $c + ((($c - 10) >> 8) & ~6))
+ );
+ }
+ return $hex;
+ }
+
+ /**
+ * Cache-timing-safe variant of ord()
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $chr
+ * @return int
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function chrToInt($chr)
+ {
+ /* Type checks: */
+ if (!is_string($chr)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($chr) . ' given.');
+ }
+ if (self::strlen($chr) !== 1) {
+ throw new SodiumException('chrToInt() expects a string that is exactly 1 character long');
+ }
+ /** @var array<int, int> $chunk */
+ $chunk = unpack('C', $chr);
+ return (int) ($chunk[1]);
+ }
+
+ /**
+ * Compares two strings.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $left
+ * @param string $right
+ * @param int $len
+ * @return int
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function compare($left, $right, $len = null)
+ {
+ $leftLen = self::strlen($left);
+ $rightLen = self::strlen($right);
+ if ($len === null) {
+ $len = max($leftLen, $rightLen);
+ $left = str_pad($left, $len, "\x00", STR_PAD_RIGHT);
+ $right = str_pad($right, $len, "\x00", STR_PAD_RIGHT);
+ }
+
+ $gt = 0;
+ $eq = 1;
+ $i = $len;
+ while ($i !== 0) {
+ --$i;
+ $gt |= ((self::chrToInt($right[$i]) - self::chrToInt($left[$i])) >> 8) & $eq;
+ $eq &= ((self::chrToInt($right[$i]) ^ self::chrToInt($left[$i])) - 1) >> 8;
+ }
+ return ($gt + $gt + $eq) - 1;
+ }
+
+ /**
+ * If a variable does not match a given type, throw a TypeError.
+ *
+ * @param mixed $mixedVar
+ * @param string $type
+ * @param int $argumentIndex
+ * @throws TypeError
+ * @throws SodiumException
+ * @return void
+ */
+ public static function declareScalarType(&$mixedVar = null, $type = 'void', $argumentIndex = 0)
+ {
+ if (func_num_args() === 0) {
+ /* Tautology, by default */
+ return;
+ }
+ if (func_num_args() === 1) {
+ throw new TypeError('Declared void, but passed a variable');
+ }
+ $realType = strtolower(gettype($mixedVar));
+ $type = strtolower($type);
+ switch ($type) {
+ case 'null':
+ if ($mixedVar !== null) {
+ throw new TypeError('Argument ' . $argumentIndex . ' must be null, ' . $realType . ' given.');
+ }
+ break;
+ case 'integer':
+ case 'int':
+ $allow = array('int', 'integer');
+ if (!in_array($type, $allow)) {
+ throw new TypeError('Argument ' . $argumentIndex . ' must be an integer, ' . $realType . ' given.');
+ }
+ $mixedVar = (int) $mixedVar;
+ break;
+ case 'boolean':
+ case 'bool':
+ $allow = array('bool', 'boolean');
+ if (!in_array($type, $allow)) {
+ throw new TypeError('Argument ' . $argumentIndex . ' must be a boolean, ' . $realType . ' given.');
+ }
+ $mixedVar = (bool) $mixedVar;
+ break;
+ case 'string':
+ if (!is_string($mixedVar)) {
+ throw new TypeError('Argument ' . $argumentIndex . ' must be a string, ' . $realType . ' given.');
+ }
+ $mixedVar = (string) $mixedVar;
+ break;
+ case 'decimal':
+ case 'double':
+ case 'float':
+ $allow = array('decimal', 'double', 'float');
+ if (!in_array($type, $allow)) {
+ throw new TypeError('Argument ' . $argumentIndex . ' must be a float, ' . $realType . ' given.');
+ }
+ $mixedVar = (float) $mixedVar;
+ break;
+ case 'object':
+ if (!is_object($mixedVar)) {
+ throw new TypeError('Argument ' . $argumentIndex . ' must be an object, ' . $realType . ' given.');
+ }
+ break;
+ case 'array':
+ if (!is_array($mixedVar)) {
+ if (is_object($mixedVar)) {
+ if ($mixedVar instanceof ArrayAccess) {
+ return;
+ }
+ }
+ throw new TypeError('Argument ' . $argumentIndex . ' must be an array, ' . $realType . ' given.');
+ }
+ break;
+ default:
+ throw new SodiumException('Unknown type (' . $realType .') does not match expect type (' . $type . ')');
+ }
+ }
+
+ /**
+ * Evaluate whether or not two strings are equal (in constant-time)
+ *
+ * @param string $left
+ * @param string $right
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function hashEquals($left, $right)
+ {
+ /* Type checks: */
+ if (!is_string($left)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($left) . ' given.');
+ }
+ if (!is_string($right)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($right) . ' given.');
+ }
+
+ if (is_callable('hash_equals')) {
+ return hash_equals($left, $right);
+ }
+ $d = 0;
+ /** @var int $len */
+ $len = self::strlen($left);
+ if ($len !== self::strlen($right)) {
+ return false;
+ }
+ for ($i = 0; $i < $len; ++$i) {
+ $d |= self::chrToInt($left[$i]) ^ self::chrToInt($right[$i]);
+ }
+
+ if ($d !== 0) {
+ return false;
+ }
+ return $left === $right;
+ }
+
+ /**
+ * Catch hash_update() failures and throw instead of silently proceeding
+ *
+ * @param HashContext|resource &$hs
+ * @param string $data
+ * @return void
+ * @throws SodiumException
+ * @psalm-suppress PossiblyInvalidArgument
+ */
+ protected static function hash_update(&$hs, $data)
+ {
+ if (!hash_update($hs, $data)) {
+ throw new SodiumException('hash_update() failed');
+ }
+ }
+
+ /**
+ * Convert a hexadecimal string into a binary string without cache-timing
+ * leaks
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $hexString
+ * @param string $ignore
+ * @param bool $strictPadding
+ * @return string (raw binary)
+ * @throws RangeException
+ * @throws TypeError
+ */
+ public static function hex2bin($hexString, $ignore = '', $strictPadding = false)
+ {
+ /* Type checks: */
+ if (!is_string($hexString)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($hexString) . ' given.');
+ }
+ if (!is_string($ignore)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($hexString) . ' given.');
+ }
+
+ $hex_pos = 0;
+ $bin = '';
+ $c_acc = 0;
+ $hex_len = self::strlen($hexString);
+ $state = 0;
+ if (($hex_len & 1) !== 0) {
+ if ($strictPadding) {
+ throw new RangeException(
+ 'Expected an even number of hexadecimal characters'
+ );
+ } else {
+ $hexString = '0' . $hexString;
+ ++$hex_len;
+ }
+ }
+
+ $chunk = unpack('C*', $hexString);
+ while ($hex_pos < $hex_len) {
+ ++$hex_pos;
+ /** @var int $c */
+ $c = $chunk[$hex_pos];
+ $c_num = $c ^ 48;
+ $c_num0 = ($c_num - 10) >> 8;
+ $c_alpha = ($c & ~32) - 55;
+ $c_alpha0 = (($c_alpha - 10) ^ ($c_alpha - 16)) >> 8;
+ if (($c_num0 | $c_alpha0) === 0) {
+ if ($ignore && $state === 0 && strpos($ignore, self::intToChr($c)) !== false) {
+ continue;
+ }
+ throw new RangeException(
+ 'hex2bin() only expects hexadecimal characters'
+ );
+ }
+ $c_val = ($c_num0 & $c_num) | ($c_alpha & $c_alpha0);
+ if ($state === 0) {
+ $c_acc = $c_val * 16;
+ } else {
+ $bin .= pack('C', $c_acc | $c_val);
+ }
+ $state ^= 1;
+ }
+ return $bin;
+ }
+
+ /**
+ * Turn an array of integers into a string
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param array<int, int> $ints
+ * @return string
+ */
+ public static function intArrayToString(array $ints)
+ {
+ $args = $ints;
+ foreach ($args as $i => $v) {
+ $args[$i] = (int) ($v & 0xff);
+ }
+ array_unshift($args, str_repeat('C', count($ints)));
+ return (string) (call_user_func_array('pack', $args));
+ }
+
+ /**
+ * Cache-timing-safe variant of ord()
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $int
+ * @return string
+ * @throws TypeError
+ */
+ public static function intToChr($int)
+ {
+ return pack('C', $int);
+ }
+
+ /**
+ * Load a 3 character substring into an integer
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $string
+ * @return int
+ * @throws RangeException
+ * @throws TypeError
+ */
+ public static function load_3($string)
+ {
+ /* Type checks: */
+ if (!is_string($string)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($string) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($string) < 3) {
+ throw new RangeException(
+ 'String must be 3 bytes or more; ' . self::strlen($string) . ' given.'
+ );
+ }
+ /** @var array<int, int> $unpacked */
+ $unpacked = unpack('V', $string . "\0");
+ return (int) ($unpacked[1] & 0xffffff);
+ }
+
+ /**
+ * Load a 4 character substring into an integer
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $string
+ * @return int
+ * @throws RangeException
+ * @throws TypeError
+ */
+ public static function load_4($string)
+ {
+ /* Type checks: */
+ if (!is_string($string)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($string) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($string) < 4) {
+ throw new RangeException(
+ 'String must be 4 bytes or more; ' . self::strlen($string) . ' given.'
+ );
+ }
+ /** @var array<int, int> $unpacked */
+ $unpacked = unpack('V', $string);
+ return (int) $unpacked[1];
+ }
+
+ /**
+ * Load a 8 character substring into an integer
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $string
+ * @return int
+ * @throws RangeException
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function load64_le($string)
+ {
+ /* Type checks: */
+ if (!is_string($string)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($string) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($string) < 4) {
+ throw new RangeException(
+ 'String must be 4 bytes or more; ' . self::strlen($string) . ' given.'
+ );
+ }
+ if (PHP_VERSION_ID >= 50603 && PHP_INT_SIZE === 8) {
+ /** @var array<int, int> $unpacked */
+ $unpacked = unpack('P', $string);
+ return (int) $unpacked[1];
+ }
+
+ /** @var int $result */
+ $result = (self::chrToInt($string[0]) & 0xff);
+ $result |= (self::chrToInt($string[1]) & 0xff) << 8;
+ $result |= (self::chrToInt($string[2]) & 0xff) << 16;
+ $result |= (self::chrToInt($string[3]) & 0xff) << 24;
+ $result |= (self::chrToInt($string[4]) & 0xff) << 32;
+ $result |= (self::chrToInt($string[5]) & 0xff) << 40;
+ $result |= (self::chrToInt($string[6]) & 0xff) << 48;
+ $result |= (self::chrToInt($string[7]) & 0xff) << 56;
+ return (int) $result;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $left
+ * @param string $right
+ * @return int
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function memcmp($left, $right)
+ {
+ if (self::hashEquals($left, $right)) {
+ return 0;
+ }
+ return -1;
+ }
+
+ /**
+ * Multiply two integers in constant-time
+ *
+ * Micro-architecture timing side-channels caused by how your CPU
+ * implements multiplication are best prevented by never using the
+ * multiplication operators and ensuring that our code always takes
+ * the same number of operations to complete, regardless of the values
+ * of $a and $b.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $a
+ * @param int $b
+ * @param int $size Limits the number of operations (useful for small,
+ * constant operands)
+ * @return int
+ */
+ public static function mul($a, $b, $size = 0)
+ {
+ if (ParagonIE_Sodium_Compat::$fastMult) {
+ return (int) ($a * $b);
+ }
+
+ static $defaultSize = null;
+ /** @var int $defaultSize */
+ if (!$defaultSize) {
+ /** @var int $defaultSize */
+ $defaultSize = (PHP_INT_SIZE << 3) - 1;
+ }
+ if ($size < 1) {
+ /** @var int $size */
+ $size = $defaultSize;
+ }
+ /** @var int $size */
+
+ $c = 0;
+
+ /**
+ * Mask is either -1 or 0.
+ *
+ * -1 in binary looks like 0x1111 ... 1111
+ * 0 in binary looks like 0x0000 ... 0000
+ *
+ * @var int
+ */
+ $mask = -(($b >> ((int) $defaultSize)) & 1);
+
+ /**
+ * Ensure $b is a positive integer, without creating
+ * a branching side-channel
+ *
+ * @var int $b
+ */
+ $b = ($b & ~$mask) | ($mask & -$b);
+
+ /**
+ * Unless $size is provided:
+ *
+ * This loop always runs 32 times when PHP_INT_SIZE is 4.
+ * This loop always runs 64 times when PHP_INT_SIZE is 8.
+ */
+ for ($i = $size; $i >= 0; --$i) {
+ $c += (int) ($a & -($b & 1));
+ $a <<= 1;
+ $b >>= 1;
+ }
+ $c = (int) @($c & -1);
+
+ /**
+ * If $b was negative, we then apply the same value to $c here.
+ * It doesn't matter much if $a was negative; the $c += above would
+ * have produced a negative integer to begin with. But a negative $b
+ * makes $b >>= 1 never return 0, so we would end up with incorrect
+ * results.
+ *
+ * The end result is what we'd expect from integer multiplication.
+ */
+ return (int) (($c & ~$mask) | ($mask & -$c));
+ }
+
+ /**
+ * Convert any arbitrary numbers into two 32-bit integers that represent
+ * a 64-bit integer.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int|float $num
+ * @return array<int, int>
+ */
+ public static function numericTo64BitInteger($num)
+ {
+ $high = 0;
+ /** @var int $low */
+ if (PHP_INT_SIZE === 4) {
+ $low = (int) $num;
+ } else {
+ $low = $num & 0xffffffff;
+ }
+
+ if ((+(abs($num))) >= 1) {
+ if ($num > 0) {
+ /** @var int $high */
+ $high = min((+(floor($num/4294967296))), 4294967295);
+ } else {
+ /** @var int $high */
+ $high = ~~((+(ceil(($num - (+((~~($num)))))/4294967296))));
+ }
+ }
+ return array((int) $high, (int) $low);
+ }
+
+ /**
+ * Store a 24-bit integer into a string, treating it as big-endian.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $int
+ * @return string
+ * @throws TypeError
+ */
+ public static function store_3($int)
+ {
+ /* Type checks: */
+ if (!is_int($int)) {
+ if (is_numeric($int)) {
+ $int = (int) $int;
+ } else {
+ throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
+ }
+ }
+ /** @var string $packed */
+ $packed = pack('N', $int);
+ return self::substr($packed, 1, 3);
+ }
+
+ /**
+ * Store a 32-bit integer into a string, treating it as little-endian.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $int
+ * @return string
+ * @throws TypeError
+ */
+ public static function store32_le($int)
+ {
+ /* Type checks: */
+ if (!is_int($int)) {
+ if (is_numeric($int)) {
+ $int = (int) $int;
+ } else {
+ throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
+ }
+ }
+
+ /** @var string $packed */
+ $packed = pack('V', $int);
+ return $packed;
+ }
+
+ /**
+ * Store a 32-bit integer into a string, treating it as big-endian.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $int
+ * @return string
+ * @throws TypeError
+ */
+ public static function store_4($int)
+ {
+ /* Type checks: */
+ if (!is_int($int)) {
+ if (is_numeric($int)) {
+ $int = (int) $int;
+ } else {
+ throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
+ }
+ }
+
+ /** @var string $packed */
+ $packed = pack('N', $int);
+ return $packed;
+ }
+
+ /**
+ * Stores a 64-bit integer as an string, treating it as little-endian.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $int
+ * @return string
+ * @throws TypeError
+ */
+ public static function store64_le($int)
+ {
+ /* Type checks: */
+ if (!is_int($int)) {
+ if (is_numeric($int)) {
+ $int = (int) $int;
+ } else {
+ throw new TypeError('Argument 1 must be an integer, ' . gettype($int) . ' given.');
+ }
+ }
+
+ if (PHP_INT_SIZE === 8) {
+ if (PHP_VERSION_ID >= 50603) {
+ /** @var string $packed */
+ $packed = pack('P', $int);
+ return $packed;
+ }
+ return self::intToChr($int & 0xff) .
+ self::intToChr(($int >> 8) & 0xff) .
+ self::intToChr(($int >> 16) & 0xff) .
+ self::intToChr(($int >> 24) & 0xff) .
+ self::intToChr(($int >> 32) & 0xff) .
+ self::intToChr(($int >> 40) & 0xff) .
+ self::intToChr(($int >> 48) & 0xff) .
+ self::intToChr(($int >> 56) & 0xff);
+ }
+ if ($int > PHP_INT_MAX) {
+ list($hiB, $int) = self::numericTo64BitInteger($int);
+ } else {
+ $hiB = 0;
+ }
+ return
+ self::intToChr(($int ) & 0xff) .
+ self::intToChr(($int >> 8) & 0xff) .
+ self::intToChr(($int >> 16) & 0xff) .
+ self::intToChr(($int >> 24) & 0xff) .
+ self::intToChr($hiB & 0xff) .
+ self::intToChr(($hiB >> 8) & 0xff) .
+ self::intToChr(($hiB >> 16) & 0xff) .
+ self::intToChr(($hiB >> 24) & 0xff);
+ }
+
+ /**
+ * Safe string length
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @ref mbstring.func_overload
+ *
+ * @param string $str
+ * @return int
+ * @throws TypeError
+ */
+ public static function strlen($str)
+ {
+ /* Type checks: */
+ if (!is_string($str)) {
+ throw new TypeError('String expected');
+ }
+
+ return (int) (
+ self::isMbStringOverride()
+ ? mb_strlen($str, '8bit')
+ : strlen($str)
+ );
+ }
+
+ /**
+ * Turn a string into an array of integers
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $string
+ * @return array<int, int>
+ * @throws TypeError
+ */
+ public static function stringToIntArray($string)
+ {
+ if (!is_string($string)) {
+ throw new TypeError('String expected');
+ }
+ /**
+ * @var array<int, int>
+ */
+ $values = array_values(
+ unpack('C*', $string)
+ );
+ return $values;
+ }
+
+ /**
+ * Safe substring
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @ref mbstring.func_overload
+ *
+ * @param string $str
+ * @param int $start
+ * @param int $length
+ * @return string
+ * @throws TypeError
+ */
+ public static function substr($str, $start = 0, $length = null)
+ {
+ /* Type checks: */
+ if (!is_string($str)) {
+ throw new TypeError('String expected');
+ }
+
+ if ($length === 0) {
+ return '';
+ }
+
+ if (self::isMbStringOverride()) {
+ if (PHP_VERSION_ID < 50400 && $length === null) {
+ $length = self::strlen($str);
+ }
+ $sub = (string) mb_substr($str, $start, $length, '8bit');
+ } elseif ($length === null) {
+ $sub = (string) substr($str, $start);
+ } else {
+ $sub = (string) substr($str, $start, $length);
+ }
+ if ($sub !== '') {
+ return $sub;
+ }
+ return '';
+ }
+
+ /**
+ * Compare a 16-character byte string in constant time.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $a
+ * @param string $b
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function verify_16($a, $b)
+ {
+ /* Type checks: */
+ if (!is_string($a)) {
+ throw new TypeError('String expected');
+ }
+ if (!is_string($b)) {
+ throw new TypeError('String expected');
+ }
+ return self::hashEquals(
+ self::substr($a, 0, 16),
+ self::substr($b, 0, 16)
+ );
+ }
+
+ /**
+ * Compare a 32-character byte string in constant time.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $a
+ * @param string $b
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function verify_32($a, $b)
+ {
+ /* Type checks: */
+ if (!is_string($a)) {
+ throw new TypeError('String expected');
+ }
+ if (!is_string($b)) {
+ throw new TypeError('String expected');
+ }
+ return self::hashEquals(
+ self::substr($a, 0, 32),
+ self::substr($b, 0, 32)
+ );
+ }
+
+ /**
+ * Calculate $a ^ $b for two strings.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $a
+ * @param string $b
+ * @return string
+ * @throws TypeError
+ */
+ public static function xorStrings($a, $b)
+ {
+ /* Type checks: */
+ if (!is_string($a)) {
+ throw new TypeError('Argument 1 must be a string');
+ }
+ if (!is_string($b)) {
+ throw new TypeError('Argument 2 must be a string');
+ }
+
+ return (string) ($a ^ $b);
+ }
+
+ /**
+ * Returns whether or not mbstring.func_overload is in effect.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * Note: MB_OVERLOAD_STRING === 2, but we don't reference the constant
+ * (for nuisance-free PHP 8 support)
+ *
+ * @return bool
+ */
+ protected static function isMbStringOverride()
+ {
+ static $mbstring = null;
+
+ if ($mbstring === null) {
+ if (!defined('MB_OVERLOAD_STRING')) {
+ $mbstring = false;
+ return $mbstring;
+ }
+ $mbstring = extension_loaded('mbstring')
+ && defined('MB_OVERLOAD_STRING')
+ &&
+ ((int) (ini_get('mbstring.func_overload')) & 2);
+ // MB_OVERLOAD_STRING === 2
+ }
+ /** @var bool $mbstring */
+
+ return $mbstring;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php b/vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php
index cda1a2c..0fed21a 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php
@@ -1,719 +1,719 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core_BLAKE2b', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_Sodium_Core_BLAKE2b
- *
- * Based on the work of Devi Mandiri in devi/salt.
- */
-abstract class ParagonIE_Sodium_Core32_BLAKE2b extends ParagonIE_Sodium_Core_Util
-{
- /**
- * @var SplFixedArray
- */
- public static $iv;
-
- /**
- * @var array<int, array<int, int>>
- */
- public static $sigma = array(
- array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
- array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
- array( 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
- array( 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
- array( 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
- array( 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
- array( 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
- array( 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
- array( 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
- array( 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0),
- array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
- array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3)
- );
-
- const BLOCKBYTES = 128;
- const OUTBYTES = 64;
- const KEYBYTES = 64;
-
- /**
- * Turn two 32-bit integers into a fixed array representing a 64-bit integer.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $high
- * @param int $low
- * @return ParagonIE_Sodium_Core32_Int64
- * @throws SodiumException
- * @throws TypeError
- */
- public static function new64($high, $low)
- {
- return ParagonIE_Sodium_Core32_Int64::fromInts($low, $high);
- }
-
- /**
- * Convert an arbitrary number into an SplFixedArray of two 32-bit integers
- * that represents a 64-bit integer.
- *
- * @internal You should not use this directly from another application
- *
- * @param int $num
- * @return ParagonIE_Sodium_Core32_Int64
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function to64($num)
- {
- list($hi, $lo) = self::numericTo64BitInteger($num);
- return self::new64($hi, $lo);
- }
-
- /**
- * Adds two 64-bit integers together, returning their sum as a SplFixedArray
- * containing two 32-bit integers (representing a 64-bit integer).
- *
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core32_Int64 $x
- * @param ParagonIE_Sodium_Core32_Int64 $y
- * @return ParagonIE_Sodium_Core32_Int64
- */
- protected static function add64($x, $y)
- {
- return $x->addInt64($y);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core32_Int64 $x
- * @param ParagonIE_Sodium_Core32_Int64 $y
- * @param ParagonIE_Sodium_Core32_Int64 $z
- * @return ParagonIE_Sodium_Core32_Int64
- */
- public static function add364($x, $y, $z)
- {
- return $x->addInt64($y)->addInt64($z);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core32_Int64 $x
- * @param ParagonIE_Sodium_Core32_Int64 $y
- * @return ParagonIE_Sodium_Core32_Int64
- * @throws TypeError
- */
- public static function xor64(ParagonIE_Sodium_Core32_Int64 $x, ParagonIE_Sodium_Core32_Int64 $y)
- {
- return $x->xorInt64($y);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param ParagonIE_Sodium_Core32_Int64 $x
- * @param int $c
- * @return ParagonIE_Sodium_Core32_Int64
- * @throws SodiumException
- * @throws TypeError
- */
- public static function rotr64(ParagonIE_Sodium_Core32_Int64 $x, $c)
- {
- return $x->rotateRight($c);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param int $i
- * @return ParagonIE_Sodium_Core32_Int64
- * @throws SodiumException
- * @throws TypeError
- */
- public static function load64($x, $i)
- {
- /** @var int $l */
- $l = (int) ($x[$i])
- | ((int) ($x[$i+1]) << 8)
- | ((int) ($x[$i+2]) << 16)
- | ((int) ($x[$i+3]) << 24);
- /** @var int $h */
- $h = (int) ($x[$i+4])
- | ((int) ($x[$i+5]) << 8)
- | ((int) ($x[$i+6]) << 16)
- | ((int) ($x[$i+7]) << 24);
- return self::new64($h, $l);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $x
- * @param int $i
- * @param ParagonIE_Sodium_Core32_Int64 $u
- * @return void
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- */
- public static function store64(SplFixedArray $x, $i, ParagonIE_Sodium_Core32_Int64 $u)
- {
- $v = clone $u;
- $maxLength = $x->getSize() - 1;
- for ($j = 0; $j < 8; ++$j) {
- $k = 3 - ($j >> 1);
- $x[$i] = $v->limbs[$k] & 0xff;
- if (++$i > $maxLength) {
- return;
- }
- $v->limbs[$k] >>= 8;
- }
- }
-
- /**
- * This just sets the $iv static variable.
- *
- * @internal You should not use this directly from another application
- *
- * @return void
- * @throws SodiumException
- * @throws TypeError
- */
- public static function pseudoConstructor()
- {
- static $called = false;
- if ($called) {
- return;
- }
- self::$iv = new SplFixedArray(8);
- self::$iv[0] = self::new64(0x6a09e667, 0xf3bcc908);
- self::$iv[1] = self::new64(0xbb67ae85, 0x84caa73b);
- self::$iv[2] = self::new64(0x3c6ef372, 0xfe94f82b);
- self::$iv[3] = self::new64(0xa54ff53a, 0x5f1d36f1);
- self::$iv[4] = self::new64(0x510e527f, 0xade682d1);
- self::$iv[5] = self::new64(0x9b05688c, 0x2b3e6c1f);
- self::$iv[6] = self::new64(0x1f83d9ab, 0xfb41bd6b);
- self::$iv[7] = self::new64(0x5be0cd19, 0x137e2179);
-
- $called = true;
- }
-
- /**
- * Returns a fresh BLAKE2 context.
- *
- * @internal You should not use this directly from another application
- *
- * @return SplFixedArray
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function context()
- {
- $ctx = new SplFixedArray(6);
- $ctx[0] = new SplFixedArray(8); // h
- $ctx[1] = new SplFixedArray(2); // t
- $ctx[2] = new SplFixedArray(2); // f
- $ctx[3] = new SplFixedArray(256); // buf
- $ctx[4] = 0; // buflen
- $ctx[5] = 0; // last_node (uint8_t)
-
- for ($i = 8; $i--;) {
- $ctx[0][$i] = self::$iv[$i];
- }
- for ($i = 256; $i--;) {
- $ctx[3][$i] = 0;
- }
-
- $zero = self::new64(0, 0);
- $ctx[1][0] = $zero;
- $ctx[1][1] = $zero;
- $ctx[2][0] = $zero;
- $ctx[2][1] = $zero;
-
- return $ctx;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param SplFixedArray $buf
- * @return void
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedAssignment
- */
- protected static function compress(SplFixedArray $ctx, SplFixedArray $buf)
- {
- $m = new SplFixedArray(16);
- $v = new SplFixedArray(16);
-
- for ($i = 16; $i--;) {
- $m[$i] = self::load64($buf, $i << 3);
- }
-
- for ($i = 8; $i--;) {
- $v[$i] = $ctx[0][$i];
- }
-
- $v[ 8] = self::$iv[0];
- $v[ 9] = self::$iv[1];
- $v[10] = self::$iv[2];
- $v[11] = self::$iv[3];
-
- $v[12] = self::xor64($ctx[1][0], self::$iv[4]);
- $v[13] = self::xor64($ctx[1][1], self::$iv[5]);
- $v[14] = self::xor64($ctx[2][0], self::$iv[6]);
- $v[15] = self::xor64($ctx[2][1], self::$iv[7]);
-
- for ($r = 0; $r < 12; ++$r) {
- $v = self::G($r, 0, 0, 4, 8, 12, $v, $m);
- $v = self::G($r, 1, 1, 5, 9, 13, $v, $m);
- $v = self::G($r, 2, 2, 6, 10, 14, $v, $m);
- $v = self::G($r, 3, 3, 7, 11, 15, $v, $m);
- $v = self::G($r, 4, 0, 5, 10, 15, $v, $m);
- $v = self::G($r, 5, 1, 6, 11, 12, $v, $m);
- $v = self::G($r, 6, 2, 7, 8, 13, $v, $m);
- $v = self::G($r, 7, 3, 4, 9, 14, $v, $m);
- }
-
- for ($i = 8; $i--;) {
- $ctx[0][$i] = self::xor64(
- $ctx[0][$i], self::xor64($v[$i], $v[$i+8])
- );
- }
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param int $r
- * @param int $i
- * @param int $a
- * @param int $b
- * @param int $c
- * @param int $d
- * @param SplFixedArray $v
- * @param SplFixedArray $m
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayOffset
- */
- public static function G($r, $i, $a, $b, $c, $d, SplFixedArray $v, SplFixedArray $m)
- {
- $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][$i << 1]]);
- $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 32);
- $v[$c] = self::add64($v[$c], $v[$d]);
- $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 24);
- $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][($i << 1) + 1]]);
- $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 16);
- $v[$c] = self::add64($v[$c], $v[$d]);
- $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 63);
- return $v;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param int $inc
- * @return void
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- */
- public static function increment_counter($ctx, $inc)
- {
- if ($inc < 0) {
- throw new SodiumException('Increasing by a negative number makes no sense.');
- }
- $t = self::to64($inc);
- # S->t is $ctx[1] in our implementation
-
- # S->t[0] = ( uint64_t )( t >> 0 );
- $ctx[1][0] = self::add64($ctx[1][0], $t);
-
- # S->t[1] += ( S->t[0] < inc );
- if (!($ctx[1][0] instanceof ParagonIE_Sodium_Core32_Int64)) {
- throw new TypeError('Not an int64');
- }
- /** @var ParagonIE_Sodium_Core32_Int64 $c*/
- $c = $ctx[1][0];
- if ($c->isLessThanInt($inc)) {
- $ctx[1][1] = self::add64($ctx[1][1], self::to64(1));
- }
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param SplFixedArray $p
- * @param int $plen
- * @return void
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- * @psalm-suppress MixedMethodCall
- * @psalm-suppress MixedOperand
- */
- public static function update(SplFixedArray $ctx, SplFixedArray $p, $plen)
- {
- self::pseudoConstructor();
-
- $offset = 0;
- while ($plen > 0) {
- $left = $ctx[4];
- $fill = 256 - $left;
-
- if ($plen > $fill) {
- # memcpy( S->buf + left, in, fill ); /* Fill buffer */
- for ($i = $fill; $i--;) {
- $ctx[3][$i + $left] = $p[$i + $offset];
- }
-
- # S->buflen += fill;
- $ctx[4] += $fill;
-
- # blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
- self::increment_counter($ctx, 128);
-
- # blake2b_compress( S, S->buf ); /* Compress */
- self::compress($ctx, $ctx[3]);
-
- # memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES ); /* Shift buffer left */
- for ($i = 128; $i--;) {
- $ctx[3][$i] = $ctx[3][$i + 128];
- }
-
- # S->buflen -= BLAKE2B_BLOCKBYTES;
- $ctx[4] -= 128;
-
- # in += fill;
- $offset += $fill;
-
- # inlen -= fill;
- $plen -= $fill;
- } else {
- for ($i = $plen; $i--;) {
- $ctx[3][$i + $left] = $p[$i + $offset];
- }
- $ctx[4] += $plen;
- $offset += $plen;
- $plen -= $plen;
- }
- }
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @param SplFixedArray $out
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedArrayOffset
- * @psalm-suppress MixedMethodCall
- * @psalm-suppress MixedOperand
- */
- public static function finish(SplFixedArray $ctx, SplFixedArray $out)
- {
- self::pseudoConstructor();
- if ($ctx[4] > 128) {
- self::increment_counter($ctx, 128);
- self::compress($ctx, $ctx[3]);
- $ctx[4] -= 128;
- if ($ctx[4] > 128) {
- throw new SodiumException('Failed to assert that buflen <= 128 bytes');
- }
- for ($i = $ctx[4]; $i--;) {
- $ctx[3][$i] = $ctx[3][$i + 128];
- }
- }
-
- self::increment_counter($ctx, $ctx[4]);
- $ctx[2][0] = self::new64(0xffffffff, 0xffffffff);
-
- for ($i = 256 - $ctx[4]; $i--;) {
- /** @var int $i */
- $ctx[3][$i + $ctx[4]] = 0;
- }
-
- self::compress($ctx, $ctx[3]);
-
- $i = (int) (($out->getSize() - 1) / 8);
- for (; $i >= 0; --$i) {
- self::store64($out, $i << 3, $ctx[0][$i]);
- }
- return $out;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray|null $key
- * @param int $outlen
- * @param SplFixedArray|null $salt
- * @param SplFixedArray|null $personal
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedAssignment
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedMethodCall
- */
- public static function init(
- $key = null,
- $outlen = 64,
- $salt = null,
- $personal = null
- ) {
- self::pseudoConstructor();
- $klen = 0;
-
- if ($key !== null) {
- if (count($key) > 64) {
- throw new SodiumException('Invalid key size');
- }
- $klen = count($key);
- }
-
- if ($outlen > 64) {
- throw new SodiumException('Invalid output size');
- }
-
- $ctx = self::context();
-
- $p = new SplFixedArray(64);
- // Zero our param buffer...
- for ($i = 64; --$i;) {
- $p[$i] = 0;
- }
-
- $p[0] = $outlen; // digest_length
- $p[1] = $klen; // key_length
- $p[2] = 1; // fanout
- $p[3] = 1; // depth
-
- if ($salt instanceof SplFixedArray) {
- // salt: [32] through [47]
- for ($i = 0; $i < 16; ++$i) {
- $p[32 + $i] = (int) $salt[$i];
- }
- }
- if ($personal instanceof SplFixedArray) {
- // personal: [48] through [63]
- for ($i = 0; $i < 16; ++$i) {
- $p[48 + $i] = (int) $personal[$i];
- }
- }
-
- $ctx[0][0] = self::xor64(
- $ctx[0][0],
- self::load64($p, 0)
- );
-
- if ($salt instanceof SplFixedArray || $personal instanceof SplFixedArray) {
- // We need to do what blake2b_init_param() does:
- for ($i = 1; $i < 8; ++$i) {
- $ctx[0][$i] = self::xor64(
- $ctx[0][$i],
- self::load64($p, $i << 3)
- );
- }
- }
-
- if ($klen > 0 && $key instanceof SplFixedArray) {
- $block = new SplFixedArray(128);
- for ($i = 128; $i--;) {
- $block[$i] = 0;
- }
- for ($i = $klen; $i--;) {
- $block[$i] = $key[$i];
- }
- self::update($ctx, $block, 128);
- $ctx[4] = 128;
- }
-
- return $ctx;
- }
-
- /**
- * Convert a string into an SplFixedArray of integers
- *
- * @internal You should not use this directly from another application
- *
- * @param string $str
- * @return SplFixedArray
- * @psalm-suppress MixedArgumentTypeCoercion
- */
- public static function stringToSplFixedArray($str = '')
- {
- $values = unpack('C*', $str);
- return SplFixedArray::fromArray(array_values($values));
- }
-
- /**
- * Convert an SplFixedArray of integers into a string
- *
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $a
- * @return string
- */
- public static function SplFixedArrayToString(SplFixedArray $a)
- {
- /**
- * @var array<int, string|int>
- */
- $arr = $a->toArray();
- $c = $a->count();
- array_unshift($arr, str_repeat('C', $c));
- return (string) (call_user_func_array('pack', $arr));
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param SplFixedArray $ctx
- * @return string
- * @throws TypeError
- * @psalm-suppress MixedArgument
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- * @psalm-suppress MixedMethodCall
- */
- public static function contextToString(SplFixedArray $ctx)
- {
- $str = '';
- /** @var array<int, ParagonIE_Sodium_Core32_Int64> $ctxA */
- $ctxA = $ctx[0]->toArray();
-
- # uint64_t h[8];
- for ($i = 0; $i < 8; ++$i) {
- if (!($ctxA[$i] instanceof ParagonIE_Sodium_Core32_Int64)) {
- throw new TypeError('Not an instance of Int64');
- }
- /** @var ParagonIE_Sodium_Core32_Int64 $ctxAi */
- $ctxAi = $ctxA[$i];
- $str .= $ctxAi->toReverseString();
- }
-
- # uint64_t t[2];
- # uint64_t f[2];
- for ($i = 1; $i < 3; ++$i) {
- /** @var array<int, ParagonIE_Sodium_Core32_Int64> $ctxA */
- $ctxA = $ctx[$i]->toArray();
- /** @var ParagonIE_Sodium_Core32_Int64 $ctxA1 */
- $ctxA1 = $ctxA[0];
- /** @var ParagonIE_Sodium_Core32_Int64 $ctxA2 */
- $ctxA2 = $ctxA[1];
-
- $str .= $ctxA1->toReverseString();
- $str .= $ctxA2->toReverseString();
- }
-
- # uint8_t buf[2 * 128];
- $str .= self::SplFixedArrayToString($ctx[3]);
-
- /** @var int $ctx4 */
- $ctx4 = $ctx[4];
-
- # size_t buflen;
- $str .= implode('', array(
- self::intToChr($ctx4 & 0xff),
- self::intToChr(($ctx4 >> 8) & 0xff),
- self::intToChr(($ctx4 >> 16) & 0xff),
- self::intToChr(($ctx4 >> 24) & 0xff),
- "\x00\x00\x00\x00"
- /*
- self::intToChr(($ctx4 >> 32) & 0xff),
- self::intToChr(($ctx4 >> 40) & 0xff),
- self::intToChr(($ctx4 >> 48) & 0xff),
- self::intToChr(($ctx4 >> 56) & 0xff)
- */
- ));
- # uint8_t last_node;
- return $str . self::intToChr($ctx[5]) . str_repeat("\x00", 23);
- }
-
- /**
- * Creates an SplFixedArray containing other SplFixedArray elements, from
- * a string (compatible with \Sodium\crypto_generichash_{init, update, final})
- *
- * @internal You should not use this directly from another application
- *
- * @param string $string
- * @return SplFixedArray
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress MixedArrayAccess
- * @psalm-suppress MixedArrayAssignment
- */
- public static function stringToContext($string)
- {
- $ctx = self::context();
-
- # uint64_t h[8];
- for ($i = 0; $i < 8; ++$i) {
- $ctx[0][$i] = ParagonIE_Sodium_Core32_Int64::fromReverseString(
- self::substr($string, (($i << 3) + 0), 8)
- );
- }
-
- # uint64_t t[2];
- # uint64_t f[2];
- for ($i = 1; $i < 3; ++$i) {
- $ctx[$i][1] = ParagonIE_Sodium_Core32_Int64::fromReverseString(
- self::substr($string, 72 + (($i - 1) << 4), 8)
- );
- $ctx[$i][0] = ParagonIE_Sodium_Core32_Int64::fromReverseString(
- self::substr($string, 64 + (($i - 1) << 4), 8)
- );
- }
-
- # uint8_t buf[2 * 128];
- $ctx[3] = self::stringToSplFixedArray(self::substr($string, 96, 256));
-
- # uint8_t buf[2 * 128];
- $int = 0;
- for ($i = 0; $i < 8; ++$i) {
- $int |= self::chrToInt($string[352 + $i]) << ($i << 3);
- }
- $ctx[4] = $int;
-
- return $ctx;
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core_BLAKE2b', false)) {
+ return;
+}
+
+/**
+ * Class ParagonIE_Sodium_Core_BLAKE2b
+ *
+ * Based on the work of Devi Mandiri in devi/salt.
+ */
+abstract class ParagonIE_Sodium_Core32_BLAKE2b extends ParagonIE_Sodium_Core_Util
+{
+ /**
+ * @var SplFixedArray
+ */
+ public static $iv;
+
+ /**
+ * @var array<int, array<int, int>>
+ */
+ public static $sigma = array(
+ array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
+ array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3),
+ array( 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4),
+ array( 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8),
+ array( 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13),
+ array( 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9),
+ array( 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11),
+ array( 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10),
+ array( 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5),
+ array( 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0),
+ array( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15),
+ array( 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3)
+ );
+
+ const BLOCKBYTES = 128;
+ const OUTBYTES = 64;
+ const KEYBYTES = 64;
+
+ /**
+ * Turn two 32-bit integers into a fixed array representing a 64-bit integer.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $high
+ * @param int $low
+ * @return ParagonIE_Sodium_Core32_Int64
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function new64($high, $low)
+ {
+ return ParagonIE_Sodium_Core32_Int64::fromInts($low, $high);
+ }
+
+ /**
+ * Convert an arbitrary number into an SplFixedArray of two 32-bit integers
+ * that represents a 64-bit integer.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param int $num
+ * @return ParagonIE_Sodium_Core32_Int64
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function to64($num)
+ {
+ list($hi, $lo) = self::numericTo64BitInteger($num);
+ return self::new64($hi, $lo);
+ }
+
+ /**
+ * Adds two 64-bit integers together, returning their sum as a SplFixedArray
+ * containing two 32-bit integers (representing a 64-bit integer).
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core32_Int64 $x
+ * @param ParagonIE_Sodium_Core32_Int64 $y
+ * @return ParagonIE_Sodium_Core32_Int64
+ */
+ protected static function add64($x, $y)
+ {
+ return $x->addInt64($y);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core32_Int64 $x
+ * @param ParagonIE_Sodium_Core32_Int64 $y
+ * @param ParagonIE_Sodium_Core32_Int64 $z
+ * @return ParagonIE_Sodium_Core32_Int64
+ */
+ public static function add364($x, $y, $z)
+ {
+ return $x->addInt64($y)->addInt64($z);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core32_Int64 $x
+ * @param ParagonIE_Sodium_Core32_Int64 $y
+ * @return ParagonIE_Sodium_Core32_Int64
+ * @throws TypeError
+ */
+ public static function xor64(ParagonIE_Sodium_Core32_Int64 $x, ParagonIE_Sodium_Core32_Int64 $y)
+ {
+ return $x->xorInt64($y);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param ParagonIE_Sodium_Core32_Int64 $x
+ * @param int $c
+ * @return ParagonIE_Sodium_Core32_Int64
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function rotr64(ParagonIE_Sodium_Core32_Int64 $x, $c)
+ {
+ return $x->rotateRight($c);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param int $i
+ * @return ParagonIE_Sodium_Core32_Int64
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function load64($x, $i)
+ {
+ /** @var int $l */
+ $l = (int) ($x[$i])
+ | ((int) ($x[$i+1]) << 8)
+ | ((int) ($x[$i+2]) << 16)
+ | ((int) ($x[$i+3]) << 24);
+ /** @var int $h */
+ $h = (int) ($x[$i+4])
+ | ((int) ($x[$i+5]) << 8)
+ | ((int) ($x[$i+6]) << 16)
+ | ((int) ($x[$i+7]) << 24);
+ return self::new64($h, $l);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $x
+ * @param int $i
+ * @param ParagonIE_Sodium_Core32_Int64 $u
+ * @return void
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ */
+ public static function store64(SplFixedArray $x, $i, ParagonIE_Sodium_Core32_Int64 $u)
+ {
+ $v = clone $u;
+ $maxLength = $x->getSize() - 1;
+ for ($j = 0; $j < 8; ++$j) {
+ $k = 3 - ($j >> 1);
+ $x[$i] = $v->limbs[$k] & 0xff;
+ if (++$i > $maxLength) {
+ return;
+ }
+ $v->limbs[$k] >>= 8;
+ }
+ }
+
+ /**
+ * This just sets the $iv static variable.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function pseudoConstructor()
+ {
+ static $called = false;
+ if ($called) {
+ return;
+ }
+ self::$iv = new SplFixedArray(8);
+ self::$iv[0] = self::new64(0x6a09e667, 0xf3bcc908);
+ self::$iv[1] = self::new64(0xbb67ae85, 0x84caa73b);
+ self::$iv[2] = self::new64(0x3c6ef372, 0xfe94f82b);
+ self::$iv[3] = self::new64(0xa54ff53a, 0x5f1d36f1);
+ self::$iv[4] = self::new64(0x510e527f, 0xade682d1);
+ self::$iv[5] = self::new64(0x9b05688c, 0x2b3e6c1f);
+ self::$iv[6] = self::new64(0x1f83d9ab, 0xfb41bd6b);
+ self::$iv[7] = self::new64(0x5be0cd19, 0x137e2179);
+
+ $called = true;
+ }
+
+ /**
+ * Returns a fresh BLAKE2 context.
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @return SplFixedArray
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function context()
+ {
+ $ctx = new SplFixedArray(6);
+ $ctx[0] = new SplFixedArray(8); // h
+ $ctx[1] = new SplFixedArray(2); // t
+ $ctx[2] = new SplFixedArray(2); // f
+ $ctx[3] = new SplFixedArray(256); // buf
+ $ctx[4] = 0; // buflen
+ $ctx[5] = 0; // last_node (uint8_t)
+
+ for ($i = 8; $i--;) {
+ $ctx[0][$i] = self::$iv[$i];
+ }
+ for ($i = 256; $i--;) {
+ $ctx[3][$i] = 0;
+ }
+
+ $zero = self::new64(0, 0);
+ $ctx[1][0] = $zero;
+ $ctx[1][1] = $zero;
+ $ctx[2][0] = $zero;
+ $ctx[2][1] = $zero;
+
+ return $ctx;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param SplFixedArray $buf
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedAssignment
+ */
+ protected static function compress(SplFixedArray $ctx, SplFixedArray $buf)
+ {
+ $m = new SplFixedArray(16);
+ $v = new SplFixedArray(16);
+
+ for ($i = 16; $i--;) {
+ $m[$i] = self::load64($buf, $i << 3);
+ }
+
+ for ($i = 8; $i--;) {
+ $v[$i] = $ctx[0][$i];
+ }
+
+ $v[ 8] = self::$iv[0];
+ $v[ 9] = self::$iv[1];
+ $v[10] = self::$iv[2];
+ $v[11] = self::$iv[3];
+
+ $v[12] = self::xor64($ctx[1][0], self::$iv[4]);
+ $v[13] = self::xor64($ctx[1][1], self::$iv[5]);
+ $v[14] = self::xor64($ctx[2][0], self::$iv[6]);
+ $v[15] = self::xor64($ctx[2][1], self::$iv[7]);
+
+ for ($r = 0; $r < 12; ++$r) {
+ $v = self::G($r, 0, 0, 4, 8, 12, $v, $m);
+ $v = self::G($r, 1, 1, 5, 9, 13, $v, $m);
+ $v = self::G($r, 2, 2, 6, 10, 14, $v, $m);
+ $v = self::G($r, 3, 3, 7, 11, 15, $v, $m);
+ $v = self::G($r, 4, 0, 5, 10, 15, $v, $m);
+ $v = self::G($r, 5, 1, 6, 11, 12, $v, $m);
+ $v = self::G($r, 6, 2, 7, 8, 13, $v, $m);
+ $v = self::G($r, 7, 3, 4, 9, 14, $v, $m);
+ }
+
+ for ($i = 8; $i--;) {
+ $ctx[0][$i] = self::xor64(
+ $ctx[0][$i], self::xor64($v[$i], $v[$i+8])
+ );
+ }
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param int $r
+ * @param int $i
+ * @param int $a
+ * @param int $b
+ * @param int $c
+ * @param int $d
+ * @param SplFixedArray $v
+ * @param SplFixedArray $m
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayOffset
+ */
+ public static function G($r, $i, $a, $b, $c, $d, SplFixedArray $v, SplFixedArray $m)
+ {
+ $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][$i << 1]]);
+ $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 32);
+ $v[$c] = self::add64($v[$c], $v[$d]);
+ $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 24);
+ $v[$a] = self::add364($v[$a], $v[$b], $m[self::$sigma[$r][($i << 1) + 1]]);
+ $v[$d] = self::rotr64(self::xor64($v[$d], $v[$a]), 16);
+ $v[$c] = self::add64($v[$c], $v[$d]);
+ $v[$b] = self::rotr64(self::xor64($v[$b], $v[$c]), 63);
+ return $v;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param int $inc
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ */
+ public static function increment_counter($ctx, $inc)
+ {
+ if ($inc < 0) {
+ throw new SodiumException('Increasing by a negative number makes no sense.');
+ }
+ $t = self::to64($inc);
+ # S->t is $ctx[1] in our implementation
+
+ # S->t[0] = ( uint64_t )( t >> 0 );
+ $ctx[1][0] = self::add64($ctx[1][0], $t);
+
+ # S->t[1] += ( S->t[0] < inc );
+ if (!($ctx[1][0] instanceof ParagonIE_Sodium_Core32_Int64)) {
+ throw new TypeError('Not an int64');
+ }
+ /** @var ParagonIE_Sodium_Core32_Int64 $c*/
+ $c = $ctx[1][0];
+ if ($c->isLessThanInt($inc)) {
+ $ctx[1][1] = self::add64($ctx[1][1], self::to64(1));
+ }
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param SplFixedArray $p
+ * @param int $plen
+ * @return void
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ * @psalm-suppress MixedMethodCall
+ * @psalm-suppress MixedOperand
+ */
+ public static function update(SplFixedArray $ctx, SplFixedArray $p, $plen)
+ {
+ self::pseudoConstructor();
+
+ $offset = 0;
+ while ($plen > 0) {
+ $left = $ctx[4];
+ $fill = 256 - $left;
+
+ if ($plen > $fill) {
+ # memcpy( S->buf + left, in, fill ); /* Fill buffer */
+ for ($i = $fill; $i--;) {
+ $ctx[3][$i + $left] = $p[$i + $offset];
+ }
+
+ # S->buflen += fill;
+ $ctx[4] += $fill;
+
+ # blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
+ self::increment_counter($ctx, 128);
+
+ # blake2b_compress( S, S->buf ); /* Compress */
+ self::compress($ctx, $ctx[3]);
+
+ # memcpy( S->buf, S->buf + BLAKE2B_BLOCKBYTES, BLAKE2B_BLOCKBYTES ); /* Shift buffer left */
+ for ($i = 128; $i--;) {
+ $ctx[3][$i] = $ctx[3][$i + 128];
+ }
+
+ # S->buflen -= BLAKE2B_BLOCKBYTES;
+ $ctx[4] -= 128;
+
+ # in += fill;
+ $offset += $fill;
+
+ # inlen -= fill;
+ $plen -= $fill;
+ } else {
+ for ($i = $plen; $i--;) {
+ $ctx[3][$i + $left] = $p[$i + $offset];
+ }
+ $ctx[4] += $plen;
+ $offset += $plen;
+ $plen -= $plen;
+ }
+ }
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @param SplFixedArray $out
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedArrayOffset
+ * @psalm-suppress MixedMethodCall
+ * @psalm-suppress MixedOperand
+ */
+ public static function finish(SplFixedArray $ctx, SplFixedArray $out)
+ {
+ self::pseudoConstructor();
+ if ($ctx[4] > 128) {
+ self::increment_counter($ctx, 128);
+ self::compress($ctx, $ctx[3]);
+ $ctx[4] -= 128;
+ if ($ctx[4] > 128) {
+ throw new SodiumException('Failed to assert that buflen <= 128 bytes');
+ }
+ for ($i = $ctx[4]; $i--;) {
+ $ctx[3][$i] = $ctx[3][$i + 128];
+ }
+ }
+
+ self::increment_counter($ctx, $ctx[4]);
+ $ctx[2][0] = self::new64(0xffffffff, 0xffffffff);
+
+ for ($i = 256 - $ctx[4]; $i--;) {
+ /** @var int $i */
+ $ctx[3][$i + $ctx[4]] = 0;
+ }
+
+ self::compress($ctx, $ctx[3]);
+
+ $i = (int) (($out->getSize() - 1) / 8);
+ for (; $i >= 0; --$i) {
+ self::store64($out, $i << 3, $ctx[0][$i]);
+ }
+ return $out;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray|null $key
+ * @param int $outlen
+ * @param SplFixedArray|null $salt
+ * @param SplFixedArray|null $personal
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedAssignment
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedMethodCall
+ */
+ public static function init(
+ $key = null,
+ $outlen = 64,
+ $salt = null,
+ $personal = null
+ ) {
+ self::pseudoConstructor();
+ $klen = 0;
+
+ if ($key !== null) {
+ if (count($key) > 64) {
+ throw new SodiumException('Invalid key size');
+ }
+ $klen = count($key);
+ }
+
+ if ($outlen > 64) {
+ throw new SodiumException('Invalid output size');
+ }
+
+ $ctx = self::context();
+
+ $p = new SplFixedArray(64);
+ // Zero our param buffer...
+ for ($i = 64; --$i;) {
+ $p[$i] = 0;
+ }
+
+ $p[0] = $outlen; // digest_length
+ $p[1] = $klen; // key_length
+ $p[2] = 1; // fanout
+ $p[3] = 1; // depth
+
+ if ($salt instanceof SplFixedArray) {
+ // salt: [32] through [47]
+ for ($i = 0; $i < 16; ++$i) {
+ $p[32 + $i] = (int) $salt[$i];
+ }
+ }
+ if ($personal instanceof SplFixedArray) {
+ // personal: [48] through [63]
+ for ($i = 0; $i < 16; ++$i) {
+ $p[48 + $i] = (int) $personal[$i];
+ }
+ }
+
+ $ctx[0][0] = self::xor64(
+ $ctx[0][0],
+ self::load64($p, 0)
+ );
+
+ if ($salt instanceof SplFixedArray || $personal instanceof SplFixedArray) {
+ // We need to do what blake2b_init_param() does:
+ for ($i = 1; $i < 8; ++$i) {
+ $ctx[0][$i] = self::xor64(
+ $ctx[0][$i],
+ self::load64($p, $i << 3)
+ );
+ }
+ }
+
+ if ($klen > 0 && $key instanceof SplFixedArray) {
+ $block = new SplFixedArray(128);
+ for ($i = 128; $i--;) {
+ $block[$i] = 0;
+ }
+ for ($i = $klen; $i--;) {
+ $block[$i] = $key[$i];
+ }
+ self::update($ctx, $block, 128);
+ $ctx[4] = 128;
+ }
+
+ return $ctx;
+ }
+
+ /**
+ * Convert a string into an SplFixedArray of integers
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $str
+ * @return SplFixedArray
+ * @psalm-suppress MixedArgumentTypeCoercion
+ */
+ public static function stringToSplFixedArray($str = '')
+ {
+ $values = unpack('C*', $str);
+ return SplFixedArray::fromArray(array_values($values));
+ }
+
+ /**
+ * Convert an SplFixedArray of integers into a string
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $a
+ * @return string
+ */
+ public static function SplFixedArrayToString(SplFixedArray $a)
+ {
+ /**
+ * @var array<int, string|int>
+ */
+ $arr = $a->toArray();
+ $c = $a->count();
+ array_unshift($arr, str_repeat('C', $c));
+ return (string) (call_user_func_array('pack', $arr));
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param SplFixedArray $ctx
+ * @return string
+ * @throws TypeError
+ * @psalm-suppress MixedArgument
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ * @psalm-suppress MixedMethodCall
+ */
+ public static function contextToString(SplFixedArray $ctx)
+ {
+ $str = '';
+ /** @var array<int, ParagonIE_Sodium_Core32_Int64> $ctxA */
+ $ctxA = $ctx[0]->toArray();
+
+ # uint64_t h[8];
+ for ($i = 0; $i < 8; ++$i) {
+ if (!($ctxA[$i] instanceof ParagonIE_Sodium_Core32_Int64)) {
+ throw new TypeError('Not an instance of Int64');
+ }
+ /** @var ParagonIE_Sodium_Core32_Int64 $ctxAi */
+ $ctxAi = $ctxA[$i];
+ $str .= $ctxAi->toReverseString();
+ }
+
+ # uint64_t t[2];
+ # uint64_t f[2];
+ for ($i = 1; $i < 3; ++$i) {
+ /** @var array<int, ParagonIE_Sodium_Core32_Int64> $ctxA */
+ $ctxA = $ctx[$i]->toArray();
+ /** @var ParagonIE_Sodium_Core32_Int64 $ctxA1 */
+ $ctxA1 = $ctxA[0];
+ /** @var ParagonIE_Sodium_Core32_Int64 $ctxA2 */
+ $ctxA2 = $ctxA[1];
+
+ $str .= $ctxA1->toReverseString();
+ $str .= $ctxA2->toReverseString();
+ }
+
+ # uint8_t buf[2 * 128];
+ $str .= self::SplFixedArrayToString($ctx[3]);
+
+ /** @var int $ctx4 */
+ $ctx4 = $ctx[4];
+
+ # size_t buflen;
+ $str .= implode('', array(
+ self::intToChr($ctx4 & 0xff),
+ self::intToChr(($ctx4 >> 8) & 0xff),
+ self::intToChr(($ctx4 >> 16) & 0xff),
+ self::intToChr(($ctx4 >> 24) & 0xff),
+ "\x00\x00\x00\x00"
+ /*
+ self::intToChr(($ctx4 >> 32) & 0xff),
+ self::intToChr(($ctx4 >> 40) & 0xff),
+ self::intToChr(($ctx4 >> 48) & 0xff),
+ self::intToChr(($ctx4 >> 56) & 0xff)
+ */
+ ));
+ # uint8_t last_node;
+ return $str . self::intToChr($ctx[5]) . str_repeat("\x00", 23);
+ }
+
+ /**
+ * Creates an SplFixedArray containing other SplFixedArray elements, from
+ * a string (compatible with \Sodium\crypto_generichash_{init, update, final})
+ *
+ * @internal You should not use this directly from another application
+ *
+ * @param string $string
+ * @return SplFixedArray
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress MixedArrayAccess
+ * @psalm-suppress MixedArrayAssignment
+ */
+ public static function stringToContext($string)
+ {
+ $ctx = self::context();
+
+ # uint64_t h[8];
+ for ($i = 0; $i < 8; ++$i) {
+ $ctx[0][$i] = ParagonIE_Sodium_Core32_Int64::fromReverseString(
+ self::substr($string, (($i << 3) + 0), 8)
+ );
+ }
+
+ # uint64_t t[2];
+ # uint64_t f[2];
+ for ($i = 1; $i < 3; ++$i) {
+ $ctx[$i][1] = ParagonIE_Sodium_Core32_Int64::fromReverseString(
+ self::substr($string, 72 + (($i - 1) << 4), 8)
+ );
+ $ctx[$i][0] = ParagonIE_Sodium_Core32_Int64::fromReverseString(
+ self::substr($string, 64 + (($i - 1) << 4), 8)
+ );
+ }
+
+ # uint8_t buf[2 * 128];
+ $ctx[3] = self::stringToSplFixedArray(self::substr($string, 96, 256));
+
+ # uint8_t buf[2 * 128];
+ $int = 0;
+ for ($i = 0; $i < 8; ++$i) {
+ $int |= self::chrToInt($string[352 + $i]) << ($i << 3);
+ }
+ $ctx[4] = $int;
+
+ return $ctx;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php
index 3f47d03..37b058f 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php
@@ -70,6 +70,7 @@ class ParagonIE_Sodium_Core32_ChaCha20_Ctx extends ParagonIE_Sodium_Core32_Util
* @param int|ParagonIE_Sodium_Core32_Int32 $value
* @return void
*/
+ #[ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
if (!is_int($offset)) {
@@ -93,6 +94,7 @@ class ParagonIE_Sodium_Core32_ChaCha20_Ctx extends ParagonIE_Sodium_Core32_Util
* @return bool
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetExists($offset)
{
return isset($this->container[$offset]);
@@ -105,6 +107,7 @@ class ParagonIE_Sodium_Core32_ChaCha20_Ctx extends ParagonIE_Sodium_Core32_Util
* @return void
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetUnset($offset)
{
unset($this->container[$offset]);
@@ -117,6 +120,7 @@ class ParagonIE_Sodium_Core32_ChaCha20_Ctx extends ParagonIE_Sodium_Core32_Util
* @return mixed|null
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetGet($offset)
{
return isset($this->container[$offset])
diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519.php
index d6d700e..aafffcd 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/Curve25519.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519.php
@@ -325,25 +325,15 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
$carry9 = $f[9]->shiftRight(25);
$f[9] = $f[9]->subInt64($carry9->shiftLeft(25));
- /** @var int $h0 */
$h0 = $f[0]->toInt32()->toInt();
- /** @var int $h1 */
$h1 = $f[1]->toInt32()->toInt();
- /** @var int $h2 */
$h2 = $f[2]->toInt32()->toInt();
- /** @var int $h3 */
$h3 = $f[3]->toInt32()->toInt();
- /** @var int $h4 */
$h4 = $f[4]->toInt32()->toInt();
- /** @var int $h5 */
$h5 = $f[5]->toInt32()->toInt();
- /** @var int $h6 */
$h6 = $f[6]->toInt32()->toInt();
- /** @var int $h7 */
$h7 = $f[7]->toInt32()->toInt();
- /** @var int $h8 */
$h8 = $f[8]->toInt32()->toInt();
- /** @var int $h9 */
$h9 = $f[9]->toInt32()->toInt();
/**
@@ -418,7 +408,6 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
if ($zero === null) {
$zero = str_repeat("\x00", 32);
}
- /** @var string $str */
$str = self::fe_tobytes($f);
/** @var string $zero */
return !self::verify_32($str, $zero);
@@ -497,15 +486,10 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
$g7_19 = $g7->mulInt(19, 5);
$g8_19 = $g8->mulInt(19, 5);
$g9_19 = $g9->mulInt(19, 5);
- /** @var ParagonIE_Sodium_Core32_Int64 $f1_2 */
$f1_2 = $f1->shiftLeft(1);
- /** @var ParagonIE_Sodium_Core32_Int64 $f3_2 */
$f3_2 = $f3->shiftLeft(1);
- /** @var ParagonIE_Sodium_Core32_Int64 $f5_2 */
$f5_2 = $f5->shiftLeft(1);
- /** @var ParagonIE_Sodium_Core32_Int64 $f7_2 */
$f7_2 = $f7->shiftLeft(1);
- /** @var ParagonIE_Sodium_Core32_Int64 $f9_2 */
$f9_2 = $f9->shiftLeft(1);
$f0g0 = $f0->mulInt64($g0, 27);
$f0g1 = $f0->mulInt64($g1, 27);
@@ -775,28 +759,17 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
*/
public static function fe_sq(ParagonIE_Sodium_Core32_Curve25519_Fe $f)
{
- /** @var ParagonIE_Sodium_Core32_Int64 $f0 */
$f0 = $f[0]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f1 */
$f1 = $f[1]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f2 */
$f2 = $f[2]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f3 */
$f3 = $f[3]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f4 */
$f4 = $f[4]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f5 */
$f5 = $f[5]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f6 */
$f6 = $f[6]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f7 */
$f7 = $f[7]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f8 */
$f8 = $f[8]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f9 */
$f9 = $f[9]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f0_2 */
$f0_2 = $f0->shiftLeft(1);
$f1_2 = $f1->shiftLeft(1);
$f2_2 = $f2->shiftLeft(1);
@@ -810,7 +783,7 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
$f7_38 = $f7->mulInt(38, 6);
$f8_19 = $f8->mulInt(19, 5);
$f9_38 = $f9->mulInt(38, 6);
- /** @var ParagonIE_Sodium_Core32_Int64 $f0f0*/
+
$f0f0 = $f0->mulInt64($f0, 28);
$f0f1_2 = $f0_2->mulInt64($f1, 28);
$f0f2_2 = $f0_2->mulInt64($f2, 28);
@@ -979,25 +952,15 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
*/
public static function fe_sq2(ParagonIE_Sodium_Core32_Curve25519_Fe $f)
{
- /** @var ParagonIE_Sodium_Core32_Int64 $f0 */
$f0 = $f[0]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f1 */
$f1 = $f[1]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f2 */
$f2 = $f[2]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f3 */
$f3 = $f[3]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f4 */
$f4 = $f[4]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f5 */
$f5 = $f[5]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f6 */
$f6 = $f[6]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f7 */
$f7 = $f[7]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f8 */
$f8 = $f[8]->toInt64();
- /** @var ParagonIE_Sodium_Core32_Int64 $f9 */
$f9 = $f[9]->toInt64();
$f0_2 = $f0->shiftLeft(1);
@@ -1479,7 +1442,6 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
{
static $d = null;
if (!$d) {
- /** @var ParagonIE_Sodium_Core32_Curve25519_Fe $d */
$d = ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray(
array(
ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[0]),
@@ -1495,6 +1457,7 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
)
);
}
+ /** @var ParagonIE_Sodium_Core32_Curve25519_Fe $d */
# fe_frombytes(h->Y,s);
# fe_1(h->Z);
@@ -1833,7 +1796,14 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
*/
public static function equal($b, $c)
{
- return (int) ((($b ^ $c) - 1 & 0xffffffff) >> 31);
+ $b0 = $b & 0xffff;
+ $b1 = ($b >> 16) & 0xffff;
+ $c0 = $c & 0xffff;
+ $c1 = ($c >> 16) & 0xffff;
+
+ $d0 = (($b0 ^ $c0) - 1) >> 31;
+ $d1 = (($b1 ^ $c1) - 1) >> 31;
+ return ($d0 & $d1) & 1;
}
/**
@@ -1850,7 +1820,6 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
return $char < 0 ? 1 : 0;
}
/** @var string $char */
- /** @var int $x */
$x = self::chrToInt(self::substr($char, 0, 1));
return (int) ($x >> 31);
}
@@ -1956,7 +1925,6 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
}
$bnegative = self::negative($b);
- /** @var int $babs */
$babs = $b - (((-$bnegative) & $b) << 1);
$t = self::ge_precomp_0();
@@ -1964,7 +1932,7 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
$t = self::cmov(
$t,
$base[$pos][$i],
- self::equal($babs, $i + 1)
+ -self::equal($babs, $i + 1)
);
}
$minusT = new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp(
@@ -2230,9 +2198,7 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
$carry = 0;
for ($i = 0; $i < 63; ++$i) {
$e[$i] += $carry;
- /** @var int $carry */
$carry = $e[$i] + 8;
- /** @var int $carry */
$carry >>= 4;
$e[$i] -= $carry << 4;
}
@@ -3140,7 +3106,6 @@ abstract class ParagonIE_Sodium_Core32_Curve25519 extends ParagonIE_Sodium_Core3
*/
public static function ge_mul_l(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $A)
{
- /** @var array<int, int> $aslide */
$aslide = array(
13, 0, 0, 0, 0, -1, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 0, -5, 0, 0, 0,
0, 0, 0, -3, 0, 0, 0, 0, -13, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 3, 0,
diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php
index 5fe10f7..21b3188 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php
@@ -48,6 +48,9 @@ class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess
}
} else {
for ($i = 0; $i < $count; ++$i) {
+ if (!($array[$i] instanceof ParagonIE_Sodium_Core32_Int32)) {
+ throw new TypeError('Expected ParagonIE_Sodium_Core32_Int32');
+ }
$array[$i]->overflow = 0;
$obj->offsetSet($i, $array[$i]);
}
@@ -104,6 +107,7 @@ class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess
* @throws SodiumException
* @throws TypeError
*/
+ #[ReturnTypeWillChange]
public function offsetSet($offset, $value)
{
if (!($value instanceof ParagonIE_Sodium_Core32_Int32)) {
@@ -124,6 +128,7 @@ class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess
* @return bool
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetExists($offset)
{
return isset($this->container[$offset]);
@@ -136,6 +141,7 @@ class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess
* @return void
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetUnset($offset)
{
unset($this->container[$offset]);
@@ -148,6 +154,7 @@ class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess
* @return ParagonIE_Sodium_Core32_Int32
* @psalm-suppress MixedArrayOffset
*/
+ #[ReturnTypeWillChange]
public function offsetGet($offset)
{
if (!isset($this->container[$offset])) {
diff --git a/vendor/paragonie/sodium_compat/src/Core32/Ed25519.php b/vendor/paragonie/sodium_compat/src/Core32/Ed25519.php
index 284ff14..1b86b67 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/Ed25519.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/Ed25519.php
@@ -1,482 +1,485 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_Core32_Ed25519', false)) {
- return;
-}
-
-/**
- * Class ParagonIE_Sodium_Core32_Ed25519
- */
-abstract class ParagonIE_Sodium_Core32_Ed25519 extends ParagonIE_Sodium_Core32_Curve25519
-{
- const KEYPAIR_BYTES = 96;
- const SEED_BYTES = 32;
-
- /**
- * @internal You should not use this directly from another application
- *
- * @return string (96 bytes)
- * @throws Exception
- * @throws SodiumException
- * @throws TypeError
- */
- public static function keypair()
- {
- $seed = random_bytes(self::SEED_BYTES);
- $pk = '';
- $sk = '';
- self::seed_keypair($pk, $sk, $seed);
- return $sk . $pk;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $pk
- * @param string $sk
- * @param string $seed
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function seed_keypair(&$pk, &$sk, $seed)
- {
- if (self::strlen($seed) !== self::SEED_BYTES) {
- throw new RangeException('crypto_sign keypair seed must be 32 bytes long');
- }
-
- /** @var string $pk */
- $pk = self::publickey_from_secretkey($seed);
- $sk = $seed . $pk;
- return $sk;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $keypair
- * @return string
- * @throws TypeError
- */
- public static function secretkey($keypair)
- {
- if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
- throw new RangeException('crypto_sign keypair must be 96 bytes long');
- }
- return self::substr($keypair, 0, 64);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $keypair
- * @return string
- * @throws RangeException
- * @throws TypeError
- */
- public static function publickey($keypair)
- {
- if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
- throw new RangeException('crypto_sign keypair must be 96 bytes long');
- }
- return self::substr($keypair, 64, 32);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function publickey_from_secretkey($sk)
- {
- /** @var string $sk */
- $sk = hash('sha512', self::substr($sk, 0, 32), true);
- $sk[0] = self::intToChr(
- self::chrToInt($sk[0]) & 248
- );
- $sk[31] = self::intToChr(
- (self::chrToInt($sk[31]) & 63) | 64
- );
- return self::sk_to_pk($sk);
- }
-
- /**
- * @param string $pk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function pk_to_curve25519($pk)
- {
- if (self::small_order($pk)) {
- throw new SodiumException('Public key is on a small order');
- }
- $A = self::ge_frombytes_negate_vartime($pk);
- $p1 = self::ge_mul_l($A);
- if (!self::fe_isnonzero($p1->X)) {
- throw new SodiumException('Unexpected zero result');
- }
-
- # fe_1(one_minus_y);
- # fe_sub(one_minus_y, one_minus_y, A.Y);
- # fe_invert(one_minus_y, one_minus_y);
- $one_minux_y = self::fe_invert(
- self::fe_sub(
- self::fe_1(),
- $A->Y
- )
- );
-
-
- # fe_1(x);
- # fe_add(x, x, A.Y);
- # fe_mul(x, x, one_minus_y);
- $x = self::fe_mul(
- self::fe_add(self::fe_1(), $A->Y),
- $one_minux_y
- );
-
- # fe_tobytes(curve25519_pk, x);
- return self::fe_tobytes($x);
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sk_to_pk($sk)
- {
- return self::ge_p3_tobytes(
- self::ge_scalarmult_base(
- self::substr($sk, 0, 32)
- )
- );
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $message
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sign($message, $sk)
- {
- /** @var string $signature */
- $signature = self::sign_detached($message, $sk);
- return $signature . $message;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $message A signed message
- * @param string $pk Public key
- * @return string Message (without signature)
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sign_open($message, $pk)
- {
- /** @var string $signature */
- $signature = self::substr($message, 0, 64);
-
- /** @var string $message */
- $message = self::substr($message, 64);
-
- if (self::verify_detached($signature, $message, $pk)) {
- return $message;
- }
- throw new SodiumException('Invalid signature');
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $message
- * @param string $sk
- * @return string
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress PossiblyInvalidArgument
- */
- public static function sign_detached($message, $sk)
- {
- # crypto_hash_sha512(az, sk, 32);
- $az = hash('sha512', self::substr($sk, 0, 32), true);
-
- # az[0] &= 248;
- # az[31] &= 63;
- # az[31] |= 64;
- $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
- $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
-
- # crypto_hash_sha512_init(&hs);
- # crypto_hash_sha512_update(&hs, az + 32, 32);
- # crypto_hash_sha512_update(&hs, m, mlen);
- # crypto_hash_sha512_final(&hs, nonce);
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($az, 32, 32));
- self::hash_update($hs, $message);
- $nonceHash = hash_final($hs, true);
-
- # memmove(sig + 32, sk + 32, 32);
- $pk = self::substr($sk, 32, 32);
-
- # sc_reduce(nonce);
- # ge_scalarmult_base(&R, nonce);
- # ge_p3_tobytes(sig, &R);
- $nonce = self::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
- $sig = self::ge_p3_tobytes(
- self::ge_scalarmult_base($nonce)
- );
-
- # crypto_hash_sha512_init(&hs);
- # crypto_hash_sha512_update(&hs, sig, 64);
- # crypto_hash_sha512_update(&hs, m, mlen);
- # crypto_hash_sha512_final(&hs, hram);
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($sig, 0, 32));
- self::hash_update($hs, self::substr($pk, 0, 32));
- self::hash_update($hs, $message);
- $hramHash = hash_final($hs, true);
-
- # sc_reduce(hram);
- # sc_muladd(sig + 32, hram, az, nonce);
- $hram = self::sc_reduce($hramHash);
- $sigAfter = self::sc_muladd($hram, $az, $nonce);
- $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
-
- try {
- ParagonIE_Sodium_Compat::memzero($az);
- } catch (SodiumException $ex) {
- $az = null;
- }
- return $sig;
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $sig
- * @param string $message
- * @param string $pk
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function verify_detached($sig, $message, $pk)
- {
- if (self::strlen($sig) < 64) {
- throw new SodiumException('Signature is too short');
- }
- if ((self::chrToInt($sig[63]) & 240) && self::check_S_lt_L(self::substr($sig, 32, 32))) {
- throw new SodiumException('S < L - Invalid signature');
- }
- if (self::small_order($sig)) {
- throw new SodiumException('Signature is on too small of an order');
- }
- if ((self::chrToInt($sig[63]) & 224) !== 0) {
- throw new SodiumException('Invalid signature');
- }
- $d = 0;
- for ($i = 0; $i < 32; ++$i) {
- $d |= self::chrToInt($pk[$i]);
- }
- if ($d === 0) {
- throw new SodiumException('All zero public key');
- }
-
- /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
- $orig = ParagonIE_Sodium_Compat::$fastMult;
-
- // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
- ParagonIE_Sodium_Compat::$fastMult = true;
-
- /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $A */
- $A = self::ge_frombytes_negate_vartime($pk);
-
- /** @var string $hDigest */
- $hDigest = hash(
- 'sha512',
- self::substr($sig, 0, 32) .
- self::substr($pk, 0, 32) .
- $message,
- true
- );
-
- /** @var string $h */
- $h = self::sc_reduce($hDigest) . self::substr($hDigest, 32);
-
- /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $R */
- $R = self::ge_double_scalarmult_vartime(
- $h,
- $A,
- self::substr($sig, 32)
- );
-
- /** @var string $rcheck */
- $rcheck = self::ge_tobytes($R);
-
- // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
- ParagonIE_Sodium_Compat::$fastMult = $orig;
-
- return self::verify_32($rcheck, self::substr($sig, 0, 32));
- }
-
- /**
- * @internal You should not use this directly from another application
- *
- * @param string $S
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function check_S_lt_L($S)
- {
- if (self::strlen($S) < 32) {
- throw new SodiumException('Signature must be 32 bytes');
- }
- static $L = array(
- 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58,
- 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10
- );
- /** @var array<int, int> $L */
- $c = 0;
- $n = 1;
- $i = 32;
-
- do {
- --$i;
- $x = self::chrToInt($S[$i]);
- $c |= (
- (($x - $L[$i]) >> 8) & $n
- );
- $n &= (
- (($x ^ $L[$i]) - 1) >> 8
- );
- } while ($i !== 0);
-
- return $c === 0;
- }
-
- /**
- * @param string $R
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function small_order($R)
- {
- static $blocklist = array(
- /* 0 (order 4) */
- array(
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- ),
- /* 1 (order 1) */
- array(
- 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- ),
- /* 2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
- array(
- 0x26, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
- 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
- 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
- 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x05
- ),
- /* 55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
- array(
- 0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
- 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
- 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
- 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0x7a
- ),
- /* p-1 (order 2) */
- array(
- 0x13, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
- 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
- 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
- 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x85
- ),
- /* p (order 4) */
- array(
- 0xb4, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
- 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
- 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
- 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0xfa
- ),
- /* p+1 (order 1) */
- array(
- 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
- ),
- /* p+2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
- array(
- 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
- ),
- /* p+55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
- array(
- 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
- ),
- /* 2p-1 (order 2) */
- array(
- 0xd9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
- ),
- /* 2p (order 4) */
- array(
- 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
- ),
- /* 2p+1 (order 1) */
- array(
- 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
- 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
- )
- );
- /** @var array<int, array<int, int>> $blocklist */
- $countBlocklist = count($blocklist);
-
- for ($i = 0; $i < $countBlocklist; ++$i) {
- $c = 0;
- for ($j = 0; $j < 32; ++$j) {
- $c |= self::chrToInt($R[$j]) ^ $blocklist[$i][$j];
- }
- if ($c === 0) {
- return true;
- }
- }
- return false;
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_Core32_Ed25519', false)) {
+ return;
+}
+if (!class_exists('ParagonIE_Sodium_Core32_Curve25519')) {
+ require_once dirname(__FILE__) . '/Curve25519.php';
+}
+
+/**
+ * Class ParagonIE_Sodium_Core32_Ed25519
+ */
+abstract class ParagonIE_Sodium_Core32_Ed25519 extends ParagonIE_Sodium_Core32_Curve25519
+{
+ const KEYPAIR_BYTES = 96;
+ const SEED_BYTES = 32;
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @return string (96 bytes)
+ * @throws Exception
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function keypair()
+ {
+ $seed = random_bytes(self::SEED_BYTES);
+ $pk = '';
+ $sk = '';
+ self::seed_keypair($pk, $sk, $seed);
+ return $sk . $pk;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $pk
+ * @param string $sk
+ * @param string $seed
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function seed_keypair(&$pk, &$sk, $seed)
+ {
+ if (self::strlen($seed) !== self::SEED_BYTES) {
+ throw new RangeException('crypto_sign keypair seed must be 32 bytes long');
+ }
+
+ /** @var string $pk */
+ $pk = self::publickey_from_secretkey($seed);
+ $sk = $seed . $pk;
+ return $sk;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $keypair
+ * @return string
+ * @throws TypeError
+ */
+ public static function secretkey($keypair)
+ {
+ if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
+ throw new RangeException('crypto_sign keypair must be 96 bytes long');
+ }
+ return self::substr($keypair, 0, 64);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $keypair
+ * @return string
+ * @throws RangeException
+ * @throws TypeError
+ */
+ public static function publickey($keypair)
+ {
+ if (self::strlen($keypair) !== self::KEYPAIR_BYTES) {
+ throw new RangeException('crypto_sign keypair must be 96 bytes long');
+ }
+ return self::substr($keypair, 64, 32);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function publickey_from_secretkey($sk)
+ {
+ /** @var string $sk */
+ $sk = hash('sha512', self::substr($sk, 0, 32), true);
+ $sk[0] = self::intToChr(
+ self::chrToInt($sk[0]) & 248
+ );
+ $sk[31] = self::intToChr(
+ (self::chrToInt($sk[31]) & 63) | 64
+ );
+ return self::sk_to_pk($sk);
+ }
+
+ /**
+ * @param string $pk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function pk_to_curve25519($pk)
+ {
+ if (self::small_order($pk)) {
+ throw new SodiumException('Public key is on a small order');
+ }
+ $A = self::ge_frombytes_negate_vartime($pk);
+ $p1 = self::ge_mul_l($A);
+ if (!self::fe_isnonzero($p1->X)) {
+ throw new SodiumException('Unexpected zero result');
+ }
+
+ # fe_1(one_minus_y);
+ # fe_sub(one_minus_y, one_minus_y, A.Y);
+ # fe_invert(one_minus_y, one_minus_y);
+ $one_minux_y = self::fe_invert(
+ self::fe_sub(
+ self::fe_1(),
+ $A->Y
+ )
+ );
+
+
+ # fe_1(x);
+ # fe_add(x, x, A.Y);
+ # fe_mul(x, x, one_minus_y);
+ $x = self::fe_mul(
+ self::fe_add(self::fe_1(), $A->Y),
+ $one_minux_y
+ );
+
+ # fe_tobytes(curve25519_pk, x);
+ return self::fe_tobytes($x);
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sk_to_pk($sk)
+ {
+ return self::ge_p3_tobytes(
+ self::ge_scalarmult_base(
+ self::substr($sk, 0, 32)
+ )
+ );
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sign($message, $sk)
+ {
+ /** @var string $signature */
+ $signature = self::sign_detached($message, $sk);
+ return $signature . $message;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message A signed message
+ * @param string $pk Public key
+ * @return string Message (without signature)
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sign_open($message, $pk)
+ {
+ /** @var string $signature */
+ $signature = self::substr($message, 0, 64);
+
+ /** @var string $message */
+ $message = self::substr($message, 64);
+
+ if (self::verify_detached($signature, $message, $pk)) {
+ return $message;
+ }
+ throw new SodiumException('Invalid signature');
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message
+ * @param string $sk
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress PossiblyInvalidArgument
+ */
+ public static function sign_detached($message, $sk)
+ {
+ # crypto_hash_sha512(az, sk, 32);
+ $az = hash('sha512', self::substr($sk, 0, 32), true);
+
+ # az[0] &= 248;
+ # az[31] &= 63;
+ # az[31] |= 64;
+ $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
+ $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
+
+ # crypto_hash_sha512_init(&hs);
+ # crypto_hash_sha512_update(&hs, az + 32, 32);
+ # crypto_hash_sha512_update(&hs, m, mlen);
+ # crypto_hash_sha512_final(&hs, nonce);
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($az, 32, 32));
+ self::hash_update($hs, $message);
+ $nonceHash = hash_final($hs, true);
+
+ # memmove(sig + 32, sk + 32, 32);
+ $pk = self::substr($sk, 32, 32);
+
+ # sc_reduce(nonce);
+ # ge_scalarmult_base(&R, nonce);
+ # ge_p3_tobytes(sig, &R);
+ $nonce = self::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
+ $sig = self::ge_p3_tobytes(
+ self::ge_scalarmult_base($nonce)
+ );
+
+ # crypto_hash_sha512_init(&hs);
+ # crypto_hash_sha512_update(&hs, sig, 64);
+ # crypto_hash_sha512_update(&hs, m, mlen);
+ # crypto_hash_sha512_final(&hs, hram);
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($sig, 0, 32));
+ self::hash_update($hs, self::substr($pk, 0, 32));
+ self::hash_update($hs, $message);
+ $hramHash = hash_final($hs, true);
+
+ # sc_reduce(hram);
+ # sc_muladd(sig + 32, hram, az, nonce);
+ $hram = self::sc_reduce($hramHash);
+ $sigAfter = self::sc_muladd($hram, $az, $nonce);
+ $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
+
+ try {
+ ParagonIE_Sodium_Compat::memzero($az);
+ } catch (SodiumException $ex) {
+ $az = null;
+ }
+ return $sig;
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $sig
+ * @param string $message
+ * @param string $pk
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function verify_detached($sig, $message, $pk)
+ {
+ if (self::strlen($sig) < 64) {
+ throw new SodiumException('Signature is too short');
+ }
+ if ((self::chrToInt($sig[63]) & 240) && self::check_S_lt_L(self::substr($sig, 32, 32))) {
+ throw new SodiumException('S < L - Invalid signature');
+ }
+ if (self::small_order($sig)) {
+ throw new SodiumException('Signature is on too small of an order');
+ }
+ if ((self::chrToInt($sig[63]) & 224) !== 0) {
+ throw new SodiumException('Invalid signature');
+ }
+ $d = 0;
+ for ($i = 0; $i < 32; ++$i) {
+ $d |= self::chrToInt($pk[$i]);
+ }
+ if ($d === 0) {
+ throw new SodiumException('All zero public key');
+ }
+
+ /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
+ $orig = ParagonIE_Sodium_Compat::$fastMult;
+
+ // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
+ ParagonIE_Sodium_Compat::$fastMult = true;
+
+ /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $A */
+ $A = self::ge_frombytes_negate_vartime($pk);
+
+ /** @var string $hDigest */
+ $hDigest = hash(
+ 'sha512',
+ self::substr($sig, 0, 32) .
+ self::substr($pk, 0, 32) .
+ $message,
+ true
+ );
+
+ /** @var string $h */
+ $h = self::sc_reduce($hDigest) . self::substr($hDigest, 32);
+
+ /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $R */
+ $R = self::ge_double_scalarmult_vartime(
+ $h,
+ $A,
+ self::substr($sig, 32)
+ );
+
+ /** @var string $rcheck */
+ $rcheck = self::ge_tobytes($R);
+
+ // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
+ ParagonIE_Sodium_Compat::$fastMult = $orig;
+
+ return self::verify_32($rcheck, self::substr($sig, 0, 32));
+ }
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $S
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function check_S_lt_L($S)
+ {
+ if (self::strlen($S) < 32) {
+ throw new SodiumException('Signature must be 32 bytes');
+ }
+ static $L = array(
+ 0xed, 0xd3, 0xf5, 0x5c, 0x1a, 0x63, 0x12, 0x58,
+ 0xd6, 0x9c, 0xf7, 0xa2, 0xde, 0xf9, 0xde, 0x14,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10
+ );
+ /** @var array<int, int> $L */
+ $c = 0;
+ $n = 1;
+ $i = 32;
+
+ do {
+ --$i;
+ $x = self::chrToInt($S[$i]);
+ $c |= (
+ (($x - $L[$i]) >> 8) & $n
+ );
+ $n &= (
+ (($x ^ $L[$i]) - 1) >> 8
+ );
+ } while ($i !== 0);
+
+ return $c === 0;
+ }
+
+ /**
+ * @param string $R
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function small_order($R)
+ {
+ static $blocklist = array(
+ /* 0 (order 4) */
+ array(
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ ),
+ /* 1 (order 1) */
+ array(
+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+ ),
+ /* 2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
+ array(
+ 0x26, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
+ 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
+ 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
+ 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x05
+ ),
+ /* 55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
+ array(
+ 0xc7, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
+ 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
+ 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
+ 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0x7a
+ ),
+ /* p-1 (order 2) */
+ array(
+ 0x13, 0xe8, 0x95, 0x8f, 0xc2, 0xb2, 0x27, 0xb0,
+ 0x45, 0xc3, 0xf4, 0x89, 0xf2, 0xef, 0x98, 0xf0,
+ 0xd5, 0xdf, 0xac, 0x05, 0xd3, 0xc6, 0x33, 0x39,
+ 0xb1, 0x38, 0x02, 0x88, 0x6d, 0x53, 0xfc, 0x85
+ ),
+ /* p (order 4) */
+ array(
+ 0xb4, 0x17, 0x6a, 0x70, 0x3d, 0x4d, 0xd8, 0x4f,
+ 0xba, 0x3c, 0x0b, 0x76, 0x0d, 0x10, 0x67, 0x0f,
+ 0x2a, 0x20, 0x53, 0xfa, 0x2c, 0x39, 0xcc, 0xc6,
+ 0x4e, 0xc7, 0xfd, 0x77, 0x92, 0xac, 0x03, 0xfa
+ ),
+ /* p+1 (order 1) */
+ array(
+ 0xec, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
+ ),
+ /* p+2707385501144840649318225287225658788936804267575313519463743609750303402022 (order 8) */
+ array(
+ 0xed, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
+ ),
+ /* p+55188659117513257062467267217118295137698188065244968500265048394206261417927 (order 8) */
+ array(
+ 0xee, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f
+ ),
+ /* 2p-1 (order 2) */
+ array(
+ 0xd9, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ ),
+ /* 2p (order 4) */
+ array(
+ 0xda, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ ),
+ /* 2p+1 (order 1) */
+ array(
+ 0xdb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+ )
+ );
+ /** @var array<int, array<int, int>> $blocklist */
+ $countBlocklist = count($blocklist);
+
+ for ($i = 0; $i < $countBlocklist; ++$i) {
+ $c = 0;
+ for ($j = 0; $j < 32; ++$j) {
+ $c |= self::chrToInt($R[$j]) ^ $blocklist[$i][$j];
+ }
+ if ($c === 0) {
+ return true;
+ }
+ }
+ return false;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core32/Int32.php b/vendor/paragonie/sodium_compat/src/Core32/Int32.php
index c3a1790..8182155 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/Int32.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/Int32.php
@@ -138,9 +138,10 @@ class ParagonIE_Sodium_Core32_Int32
public function mask($m = 0)
{
/** @var int $hi */
- $hi = ($m >> 16) & 0xffff;
+ $hi = ((int) $m >> 16);
+ $hi &= 0xffff;
/** @var int $lo */
- $lo = ($m & 0xffff);
+ $lo = ((int) $m) & 0xffff;
return new ParagonIE_Sodium_Core32_Int32(
array(
(int) ($this->limbs[0] & $hi),
@@ -168,8 +169,8 @@ class ParagonIE_Sodium_Core32_Int32
for ($j = 0; $j < $a_l; ++$j) {
$b_j = $b[$j];
$product = ($a_i * $b_j) + $r[$i + $j];
- $carry = ($product >> $baseLog2 & 0xffff);
- $r[$i + $j] = ($product - (int) ($carry * $base)) & 0xffff;
+ $carry = ((int) $product >> $baseLog2 & 0xffff);
+ $r[$i + $j] = ((int) $product - (int) ($carry * $base)) & 0xffff;
$r[$i + $j + 1] += $carry;
}
}
diff --git a/vendor/paragonie/sodium_compat/src/Core32/Int64.php b/vendor/paragonie/sodium_compat/src/Core32/Int64.php
index dd06a3f..e94d798 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/Int64.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/Int64.php
@@ -337,9 +337,9 @@ class ParagonIE_Sodium_Core32_Int64
$a_i = $a[$i];
for ($j = 0; $j < $a_l; ++$j) {
$b_j = $b[$j];
- $product = ($a_i * $b_j) + $r[$i + $j];
- $carry = ($product >> $baseLog2 & 0xffff);
- $r[$i + $j] = ($product - (int) ($carry * $base)) & 0xffff;
+ $product = (($a_i * $b_j) + $r[$i + $j]);
+ $carry = (((int) $product >> $baseLog2) & 0xffff);
+ $r[$i + $j] = ((int) $product - (int) ($carry * $base)) & 0xffff;
$r[$i + $j + 1] += $carry;
}
}
diff --git a/vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php b/vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php
index d80e1ff..90d0362 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php
@@ -255,39 +255,39 @@ class ParagonIE_Sodium_Core32_Poly1305_State extends ParagonIE_Sodium_Core32_Uti
/* h *= r */
$d0 = $zero
- ->addInt64($h0->mulInt64($r0, 25))
- ->addInt64($s4->mulInt64($h1, 26))
- ->addInt64($s3->mulInt64($h2, 26))
- ->addInt64($s2->mulInt64($h3, 26))
- ->addInt64($s1->mulInt64($h4, 26));
+ ->addInt64($h0->mulInt64($r0, 27))
+ ->addInt64($s4->mulInt64($h1, 27))
+ ->addInt64($s3->mulInt64($h2, 27))
+ ->addInt64($s2->mulInt64($h3, 27))
+ ->addInt64($s1->mulInt64($h4, 27));
$d1 = $zero
- ->addInt64($h0->mulInt64($r1, 25))
- ->addInt64($h1->mulInt64($r0, 25))
- ->addInt64($s4->mulInt64($h2, 26))
- ->addInt64($s3->mulInt64($h3, 26))
- ->addInt64($s2->mulInt64($h4, 26));
+ ->addInt64($h0->mulInt64($r1, 27))
+ ->addInt64($h1->mulInt64($r0, 27))
+ ->addInt64($s4->mulInt64($h2, 27))
+ ->addInt64($s3->mulInt64($h3, 27))
+ ->addInt64($s2->mulInt64($h4, 27));
$d2 = $zero
- ->addInt64($h0->mulInt64($r2, 25))
- ->addInt64($h1->mulInt64($r1, 25))
- ->addInt64($h2->mulInt64($r0, 25))
- ->addInt64($s4->mulInt64($h3, 26))
- ->addInt64($s3->mulInt64($h4, 26));
+ ->addInt64($h0->mulInt64($r2, 27))
+ ->addInt64($h1->mulInt64($r1, 27))
+ ->addInt64($h2->mulInt64($r0, 27))
+ ->addInt64($s4->mulInt64($h3, 27))
+ ->addInt64($s3->mulInt64($h4, 27));
$d3 = $zero
- ->addInt64($h0->mulInt64($r3, 25))
- ->addInt64($h1->mulInt64($r2, 25))
- ->addInt64($h2->mulInt64($r1, 25))
- ->addInt64($h3->mulInt64($r0, 25))
- ->addInt64($s4->mulInt64($h4, 26));
+ ->addInt64($h0->mulInt64($r3, 27))
+ ->addInt64($h1->mulInt64($r2, 27))
+ ->addInt64($h2->mulInt64($r1, 27))
+ ->addInt64($h3->mulInt64($r0, 27))
+ ->addInt64($s4->mulInt64($h4, 27));
$d4 = $zero
- ->addInt64($h0->mulInt64($r4, 25))
- ->addInt64($h1->mulInt64($r3, 25))
- ->addInt64($h2->mulInt64($r2, 25))
- ->addInt64($h3->mulInt64($r1, 25))
- ->addInt64($h4->mulInt64($r0, 25));
+ ->addInt64($h0->mulInt64($r4, 27))
+ ->addInt64($h1->mulInt64($r3, 27))
+ ->addInt64($h2->mulInt64($r2, 27))
+ ->addInt64($h3->mulInt64($r1, 27))
+ ->addInt64($h4->mulInt64($r0, 27));
/* (partial) h %= p */
$c = $d0->shiftRight(26);
@@ -419,7 +419,7 @@ class ParagonIE_Sodium_Core32_Poly1305_State extends ParagonIE_Sodium_Core32_Uti
$g4 = $g4->mask($mask);
/** @var int $mask */
- $mask = (~$mask) & 0xffffffff;
+ $mask = ~$mask;
$h0 = $h0->mask($mask)->orInt32($g0);
$h1 = $h1->mask($mask)->orInt32($g1);
diff --git a/vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php b/vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php
index 1dfc859..404e8d2 100644
--- a/vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php
+++ b/vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php
@@ -61,4 +61,27 @@ class ParagonIE_Sodium_Core32_XChaCha20 extends ParagonIE_Sodium_Core32_HChaCha2
$message
);
}
+
+ /**
+ * @internal You should not use this directly from another application
+ *
+ * @param string $message
+ * @param string $nonce
+ * @param string $key
+ * @param string $ic
+ * @return string
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function ietfStreamXorIc($message, $nonce = '', $key = '', $ic = '')
+ {
+ return self::encryptBytes(
+ new ParagonIE_Sodium_Core32_ChaCha20_IetfCtx(
+ self::hChaCha20(self::substr($nonce, 0, 16), $key),
+ "\x00\x00\x00\x00" . self::substr($nonce, 16, 8),
+ $ic
+ ),
+ $message
+ );
+ }
}
diff --git a/vendor/paragonie/sodium_compat/src/File.php b/vendor/paragonie/sodium_compat/src/File.php
index 2b22171..e8622c7 100644
--- a/vendor/paragonie/sodium_compat/src/File.php
+++ b/vendor/paragonie/sodium_compat/src/File.php
@@ -1,1560 +1,1547 @@
-<?php
-
-if (class_exists('ParagonIE_Sodium_File', false)) {
- return;
-}
-/**
- * Class ParagonIE_Sodium_File
- */
-class ParagonIE_Sodium_File extends ParagonIE_Sodium_Core_Util
-{
- /* PHP's default buffer size is 8192 for fread()/fwrite(). */
- const BUFFER_SIZE = 8192;
-
- /**
- * Box a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_box(), but produces
- * the same result.
- *
- * @param string $inputFile Absolute path to a file on the filesystem
- * @param string $outputFile Absolute path to a file on the filesystem
- * @param string $nonce Number to be used only once
- * @param string $keyPair ECDH secret key and ECDH public key concatenated
- *
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function box($inputFile, $outputFile, $nonce, $keyPair)
- {
- /* Type checks: */
- if (!is_string($inputFile)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
- }
- if (!is_string($outputFile)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
- }
- if (!is_string($nonce)) {
- throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
- }
-
- /* Input validation: */
- if (!is_string($keyPair)) {
- throw new TypeError('Argument 4 must be a string, ' . gettype($keyPair) . ' given.');
- }
- if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_NONCEBYTES) {
- throw new TypeError('Argument 3 must be CRYPTO_BOX_NONCEBYTES bytes');
- }
- if (self::strlen($keyPair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new TypeError('Argument 4 must be CRYPTO_BOX_KEYPAIRBYTES bytes');
- }
-
- /** @var int $size */
- $size = filesize($inputFile);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $ifp */
- $ifp = fopen($inputFile, 'rb');
- if (!is_resource($ifp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var resource $ofp */
- $ofp = fopen($outputFile, 'wb');
- if (!is_resource($ofp)) {
- fclose($ifp);
- throw new SodiumException('Could not open output file for writing');
- }
-
- $res = self::box_encrypt($ifp, $ofp, $size, $nonce, $keyPair);
- fclose($ifp);
- fclose($ofp);
- return $res;
- }
-
- /**
- * Open a boxed file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_box_open(), but produces
- * the same result.
- *
- * Warning: Does not protect against TOCTOU attacks. You should
- * just load the file into memory and use crypto_box_open() if
- * you are worried about those.
- *
- * @param string $inputFile
- * @param string $outputFile
- * @param string $nonce
- * @param string $keypair
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function box_open($inputFile, $outputFile, $nonce, $keypair)
- {
- /* Type checks: */
- if (!is_string($inputFile)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
- }
- if (!is_string($outputFile)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
- }
- if (!is_string($nonce)) {
- throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
- }
- if (!is_string($keypair)) {
- throw new TypeError('Argument 4 must be a string, ' . gettype($keypair) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_NONCEBYTES) {
- throw new TypeError('Argument 4 must be CRYPTO_BOX_NONCEBYTES bytes');
- }
- if (self::strlen($keypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new TypeError('Argument 4 must be CRYPTO_BOX_KEYPAIRBYTES bytes');
- }
-
- /** @var int $size */
- $size = filesize($inputFile);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $ifp */
- $ifp = fopen($inputFile, 'rb');
- if (!is_resource($ifp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var resource $ofp */
- $ofp = fopen($outputFile, 'wb');
- if (!is_resource($ofp)) {
- fclose($ifp);
- throw new SodiumException('Could not open output file for writing');
- }
-
- $res = self::box_decrypt($ifp, $ofp, $size, $nonce, $keypair);
- fclose($ifp);
- fclose($ofp);
- try {
- ParagonIE_Sodium_Compat::memzero($nonce);
- ParagonIE_Sodium_Compat::memzero($ephKeypair);
- } catch (SodiumException $ex) {
- if (isset($ephKeypair)) {
- unset($ephKeypair);
- }
- }
- return $res;
- }
-
- /**
- * Seal a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_box_seal(), but produces
- * the same result.
- *
- * @param string $inputFile Absolute path to a file on the filesystem
- * @param string $outputFile Absolute path to a file on the filesystem
- * @param string $publicKey ECDH public key
- *
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function box_seal($inputFile, $outputFile, $publicKey)
- {
- /* Type checks: */
- if (!is_string($inputFile)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
- }
- if (!is_string($outputFile)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
- }
- if (!is_string($publicKey)) {
- throw new TypeError('Argument 3 must be a string, ' . gettype($publicKey) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($publicKey) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES) {
- throw new TypeError('Argument 3 must be CRYPTO_BOX_PUBLICKEYBYTES bytes');
- }
-
- /** @var int $size */
- $size = filesize($inputFile);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $ifp */
- $ifp = fopen($inputFile, 'rb');
- if (!is_resource($ifp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var resource $ofp */
- $ofp = fopen($outputFile, 'wb');
- if (!is_resource($ofp)) {
- fclose($ifp);
- throw new SodiumException('Could not open output file for writing');
- }
-
- /** @var string $ephKeypair */
- $ephKeypair = ParagonIE_Sodium_Compat::crypto_box_keypair();
-
- /** @var string $msgKeypair */
- $msgKeypair = ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey(
- ParagonIE_Sodium_Compat::crypto_box_secretkey($ephKeypair),
- $publicKey
- );
-
- /** @var string $ephemeralPK */
- $ephemeralPK = ParagonIE_Sodium_Compat::crypto_box_publickey($ephKeypair);
-
- /** @var string $nonce */
- $nonce = ParagonIE_Sodium_Compat::crypto_generichash(
- $ephemeralPK . $publicKey,
- '',
- 24
- );
-
- /** @var int $firstWrite */
- $firstWrite = fwrite(
- $ofp,
- $ephemeralPK,
- ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES
- );
- if (!is_int($firstWrite)) {
- fclose($ifp);
- fclose($ofp);
- ParagonIE_Sodium_Compat::memzero($ephKeypair);
- throw new SodiumException('Could not write to output file');
- }
- if ($firstWrite !== ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES) {
- ParagonIE_Sodium_Compat::memzero($ephKeypair);
- fclose($ifp);
- fclose($ofp);
- throw new SodiumException('Error writing public key to output file');
- }
-
- $res = self::box_encrypt($ifp, $ofp, $size, $nonce, $msgKeypair);
- fclose($ifp);
- fclose($ofp);
- try {
- ParagonIE_Sodium_Compat::memzero($nonce);
- ParagonIE_Sodium_Compat::memzero($ephKeypair);
- } catch (SodiumException $ex) {
- /** @psalm-suppress PossiblyUndefinedVariable */
- unset($ephKeypair);
- }
- return $res;
- }
-
- /**
- * Open a sealed file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_box_seal_open(), but produces
- * the same result.
- *
- * Warning: Does not protect against TOCTOU attacks. You should
- * just load the file into memory and use crypto_box_seal_open() if
- * you are worried about those.
- *
- * @param string $inputFile
- * @param string $outputFile
- * @param string $ecdhKeypair
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function box_seal_open($inputFile, $outputFile, $ecdhKeypair)
- {
- /* Type checks: */
- if (!is_string($inputFile)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
- }
- if (!is_string($outputFile)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
- }
- if (!is_string($ecdhKeypair)) {
- throw new TypeError('Argument 3 must be a string, ' . gettype($ecdhKeypair) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($ecdhKeypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) {
- throw new TypeError('Argument 3 must be CRYPTO_BOX_KEYPAIRBYTES bytes');
- }
-
- $publicKey = ParagonIE_Sodium_Compat::crypto_box_publickey($ecdhKeypair);
-
- /** @var int $size */
- $size = filesize($inputFile);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $ifp */
- $ifp = fopen($inputFile, 'rb');
- if (!is_resource($ifp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var resource $ofp */
- $ofp = fopen($outputFile, 'wb');
- if (!is_resource($ofp)) {
- fclose($ifp);
- throw new SodiumException('Could not open output file for writing');
- }
-
- $ephemeralPK = fread($ifp, ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES);
- if (!is_string($ephemeralPK)) {
- throw new SodiumException('Could not read input file');
- }
- if (self::strlen($ephemeralPK) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES) {
- fclose($ifp);
- fclose($ofp);
- throw new SodiumException('Could not read public key from sealed file');
- }
-
- $nonce = ParagonIE_Sodium_Compat::crypto_generichash(
- $ephemeralPK . $publicKey,
- '',
- 24
- );
- $msgKeypair = ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey(
- ParagonIE_Sodium_Compat::crypto_box_secretkey($ecdhKeypair),
- $ephemeralPK
- );
-
- $res = self::box_decrypt($ifp, $ofp, $size, $nonce, $msgKeypair);
- fclose($ifp);
- fclose($ofp);
- try {
- ParagonIE_Sodium_Compat::memzero($nonce);
- ParagonIE_Sodium_Compat::memzero($ephKeypair);
- } catch (SodiumException $ex) {
- if (isset($ephKeypair)) {
- unset($ephKeypair);
- }
- }
- return $res;
- }
-
- /**
- * Calculate the BLAKE2b hash of a file.
- *
- * @param string $filePath Absolute path to a file on the filesystem
- * @param string|null $key BLAKE2b key
- * @param int $outputLength Length of hash output
- *
- * @return string BLAKE2b hash
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress FailedTypeResolution
- */
- public static function generichash($filePath, $key = '', $outputLength = 32)
- {
- /* Type checks: */
- if (!is_string($filePath)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($filePath) . ' given.');
- }
- if (!is_string($key)) {
- if (is_null($key)) {
- $key = '';
- } else {
- throw new TypeError('Argument 2 must be a string, ' . gettype($key) . ' given.');
- }
- }
- if (!is_int($outputLength)) {
- if (!is_numeric($outputLength)) {
- throw new TypeError('Argument 3 must be an integer, ' . gettype($outputLength) . ' given.');
- }
- $outputLength = (int) $outputLength;
- }
-
- /* Input validation: */
- if (!empty($key)) {
- if (self::strlen($key) < ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
- throw new TypeError('Argument 2 must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes');
- }
- if (self::strlen($key) > ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
- throw new TypeError('Argument 2 must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes');
- }
- }
- if ($outputLength < ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_BYTES_MIN) {
- throw new SodiumException('Argument 3 must be at least CRYPTO_GENERICHASH_BYTES_MIN');
- }
- if ($outputLength > ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_BYTES_MAX) {
- throw new SodiumException('Argument 3 must be at least CRYPTO_GENERICHASH_BYTES_MAX');
- }
-
- /** @var int $size */
- $size = filesize($filePath);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $fp */
- $fp = fopen($filePath, 'rb');
- if (!is_resource($fp)) {
- throw new SodiumException('Could not open input file for reading');
- }
- $ctx = ParagonIE_Sodium_Compat::crypto_generichash_init($key, $outputLength);
- while ($size > 0) {
- $blockSize = $size > 64
- ? 64
- : $size;
- $read = fread($fp, $blockSize);
- if (!is_string($read)) {
- throw new SodiumException('Could not read input file');
- }
- ParagonIE_Sodium_Compat::crypto_generichash_update($ctx, $read);
- $size -= $blockSize;
- }
-
- fclose($fp);
- return ParagonIE_Sodium_Compat::crypto_generichash_final($ctx, $outputLength);
- }
-
- /**
- * Encrypt a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_secretbox(), but produces
- * the same result.
- *
- * @param string $inputFile Absolute path to a file on the filesystem
- * @param string $outputFile Absolute path to a file on the filesystem
- * @param string $nonce Number to be used only once
- * @param string $key Encryption key
- *
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function secretbox($inputFile, $outputFile, $nonce, $key)
- {
- /* Type checks: */
- if (!is_string($inputFile)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given..');
- }
- if (!is_string($outputFile)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
- }
- if (!is_string($nonce)) {
- throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_NONCEBYTES) {
- throw new TypeError('Argument 3 must be CRYPTO_SECRETBOX_NONCEBYTES bytes');
- }
- if (!is_string($key)) {
- throw new TypeError('Argument 4 must be a string, ' . gettype($key) . ' given.');
- }
- if (self::strlen($key) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_KEYBYTES) {
- throw new TypeError('Argument 4 must be CRYPTO_SECRETBOX_KEYBYTES bytes');
- }
-
- /** @var int $size */
- $size = filesize($inputFile);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $ifp */
- $ifp = fopen($inputFile, 'rb');
- if (!is_resource($ifp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var resource $ofp */
- $ofp = fopen($outputFile, 'wb');
- if (!is_resource($ofp)) {
- fclose($ifp);
- throw new SodiumException('Could not open output file for writing');
- }
-
- $res = self::secretbox_encrypt($ifp, $ofp, $size, $nonce, $key);
- fclose($ifp);
- fclose($ofp);
- return $res;
- }
- /**
- * Seal a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_secretbox_open(), but produces
- * the same result.
- *
- * Warning: Does not protect against TOCTOU attacks. You should
- * just load the file into memory and use crypto_secretbox_open() if
- * you are worried about those.
- *
- * @param string $inputFile
- * @param string $outputFile
- * @param string $nonce
- * @param string $key
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- public static function secretbox_open($inputFile, $outputFile, $nonce, $key)
- {
- /* Type checks: */
- if (!is_string($inputFile)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
- }
- if (!is_string($outputFile)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
- }
- if (!is_string($nonce)) {
- throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
- }
- if (!is_string($key)) {
- throw new TypeError('Argument 4 must be a string, ' . gettype($key) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_NONCEBYTES) {
- throw new TypeError('Argument 4 must be CRYPTO_SECRETBOX_NONCEBYTES bytes');
- }
- if (self::strlen($key) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_KEYBYTES) {
- throw new TypeError('Argument 4 must be CRYPTO_SECRETBOXBOX_KEYBYTES bytes');
- }
-
- /** @var int $size */
- $size = filesize($inputFile);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $ifp */
- $ifp = fopen($inputFile, 'rb');
- if (!is_resource($ifp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var resource $ofp */
- $ofp = fopen($outputFile, 'wb');
- if (!is_resource($ofp)) {
- fclose($ifp);
- throw new SodiumException('Could not open output file for writing');
- }
-
- $res = self::secretbox_decrypt($ifp, $ofp, $size, $nonce, $key);
- fclose($ifp);
- fclose($ofp);
- try {
- ParagonIE_Sodium_Compat::memzero($key);
- } catch (SodiumException $ex) {
- /** @psalm-suppress PossiblyUndefinedVariable */
- unset($key);
- }
- return $res;
- }
-
- /**
- * Sign a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_sign_detached(), but produces
- * the same result.
- *
- * @param string $filePath Absolute path to a file on the filesystem
- * @param string $secretKey Secret signing key
- *
- * @return string Ed25519 signature
- * @throws SodiumException
- * @throws TypeError
- */
- public static function sign($filePath, $secretKey)
- {
- /* Type checks: */
- if (!is_string($filePath)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($filePath) . ' given.');
- }
- if (!is_string($secretKey)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($secretKey) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($secretKey) !== ParagonIE_Sodium_Compat::CRYPTO_SIGN_SECRETKEYBYTES) {
- throw new TypeError('Argument 2 must be CRYPTO_SIGN_SECRETKEYBYTES bytes');
- }
- if (PHP_INT_SIZE === 4) {
- return self::sign_core32($filePath, $secretKey);
- }
-
- /** @var int $size */
- $size = filesize($filePath);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $fp */
- $fp = fopen($filePath, 'rb');
- if (!is_resource($fp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var string $az */
- $az = hash('sha512', self::substr($secretKey, 0, 32), true);
-
- $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
- $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
-
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($az, 32, 32));
- /** @var resource $hs */
- $hs = self::updateHashWithFile($hs, $fp, $size);
-
- /** @var string $nonceHash */
- $nonceHash = hash_final($hs, true);
-
- /** @var string $pk */
- $pk = self::substr($secretKey, 32, 32);
-
- /** @var string $nonce */
- $nonce = ParagonIE_Sodium_Core_Ed25519::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
-
- /** @var string $sig */
- $sig = ParagonIE_Sodium_Core_Ed25519::ge_p3_tobytes(
- ParagonIE_Sodium_Core_Ed25519::ge_scalarmult_base($nonce)
- );
-
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($sig, 0, 32));
- self::hash_update($hs, self::substr($pk, 0, 32));
- /** @var resource $hs */
- $hs = self::updateHashWithFile($hs, $fp, $size);
-
- /** @var string $hramHash */
- $hramHash = hash_final($hs, true);
-
- /** @var string $hram */
- $hram = ParagonIE_Sodium_Core_Ed25519::sc_reduce($hramHash);
-
- /** @var string $sigAfter */
- $sigAfter = ParagonIE_Sodium_Core_Ed25519::sc_muladd($hram, $az, $nonce);
-
- /** @var string $sig */
- $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
-
- try {
- ParagonIE_Sodium_Compat::memzero($az);
- } catch (SodiumException $ex) {
- $az = null;
- }
- fclose($fp);
- return $sig;
- }
-
- /**
- * Verify a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_sign_verify_detached(), but
- * produces the same result.
- *
- * @param string $sig Ed25519 signature
- * @param string $filePath Absolute path to a file on the filesystem
- * @param string $publicKey Signing public key
- *
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- * @throws Exception
- */
- public static function verify($sig, $filePath, $publicKey)
- {
- /* Type checks: */
- if (!is_string($sig)) {
- throw new TypeError('Argument 1 must be a string, ' . gettype($sig) . ' given.');
- }
- if (!is_string($filePath)) {
- throw new TypeError('Argument 2 must be a string, ' . gettype($filePath) . ' given.');
- }
- if (!is_string($publicKey)) {
- throw new TypeError('Argument 3 must be a string, ' . gettype($publicKey) . ' given.');
- }
-
- /* Input validation: */
- if (self::strlen($sig) !== ParagonIE_Sodium_Compat::CRYPTO_SIGN_BYTES) {
- throw new TypeError('Argument 1 must be CRYPTO_SIGN_BYTES bytes');
- }
- if (self::strlen($publicKey) !== ParagonIE_Sodium_Compat::CRYPTO_SIGN_PUBLICKEYBYTES) {
- throw new TypeError('Argument 3 must be CRYPTO_SIGN_PUBLICKEYBYTES bytes');
- }
- if (self::strlen($sig) < 64) {
- throw new SodiumException('Signature is too short');
- }
-
- if (PHP_INT_SIZE === 4) {
- return self::verify_core32($sig, $filePath, $publicKey);
- }
-
- /* Security checks */
- if (
- (ParagonIE_Sodium_Core_Ed25519::chrToInt($sig[63]) & 240)
- &&
- ParagonIE_Sodium_Core_Ed25519::check_S_lt_L(self::substr($sig, 32, 32))
- ) {
- throw new SodiumException('S < L - Invalid signature');
- }
- if (ParagonIE_Sodium_Core_Ed25519::small_order($sig)) {
- throw new SodiumException('Signature is on too small of an order');
- }
- if ((self::chrToInt($sig[63]) & 224) !== 0) {
- throw new SodiumException('Invalid signature');
- }
- $d = 0;
- for ($i = 0; $i < 32; ++$i) {
- $d |= self::chrToInt($publicKey[$i]);
- }
- if ($d === 0) {
- throw new SodiumException('All zero public key');
- }
-
- /** @var int $size */
- $size = filesize($filePath);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
-
- /** @var resource $fp */
- $fp = fopen($filePath, 'rb');
- if (!is_resource($fp)) {
- throw new SodiumException('Could not open input file for reading');
- }
-
- /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
- $orig = ParagonIE_Sodium_Compat::$fastMult;
-
- // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
- ParagonIE_Sodium_Compat::$fastMult = true;
-
- /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A */
- $A = ParagonIE_Sodium_Core_Ed25519::ge_frombytes_negate_vartime($publicKey);
-
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($sig, 0, 32));
- self::hash_update($hs, self::substr($publicKey, 0, 32));
- /** @var resource $hs */
- $hs = self::updateHashWithFile($hs, $fp, $size);
- /** @var string $hDigest */
- $hDigest = hash_final($hs, true);
-
- /** @var string $h */
- $h = ParagonIE_Sodium_Core_Ed25519::sc_reduce($hDigest) . self::substr($hDigest, 32);
-
- /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P2 $R */
- $R = ParagonIE_Sodium_Core_Ed25519::ge_double_scalarmult_vartime(
- $h,
- $A,
- self::substr($sig, 32)
- );
-
- /** @var string $rcheck */
- $rcheck = ParagonIE_Sodium_Core_Ed25519::ge_tobytes($R);
-
- // Close the file handle
- fclose($fp);
-
- // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
- ParagonIE_Sodium_Compat::$fastMult = $orig;
- return self::verify_32($rcheck, self::substr($sig, 0, 32));
- }
-
- /**
- * @param resource $ifp
- * @param resource $ofp
- * @param int $mlen
- * @param string $nonce
- * @param string $boxKeypair
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function box_encrypt($ifp, $ofp, $mlen, $nonce, $boxKeypair)
- {
- if (PHP_INT_SIZE === 4) {
- return self::secretbox_encrypt(
- $ifp,
- $ofp,
- $mlen,
- $nonce,
- ParagonIE_Sodium_Crypto32::box_beforenm(
- ParagonIE_Sodium_Crypto32::box_secretkey($boxKeypair),
- ParagonIE_Sodium_Crypto32::box_publickey($boxKeypair)
- )
- );
- }
- return self::secretbox_encrypt(
- $ifp,
- $ofp,
- $mlen,
- $nonce,
- ParagonIE_Sodium_Crypto::box_beforenm(
- ParagonIE_Sodium_Crypto::box_secretkey($boxKeypair),
- ParagonIE_Sodium_Crypto::box_publickey($boxKeypair)
- )
- );
- }
-
-
- /**
- * @param resource $ifp
- * @param resource $ofp
- * @param int $mlen
- * @param string $nonce
- * @param string $boxKeypair
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function box_decrypt($ifp, $ofp, $mlen, $nonce, $boxKeypair)
- {
- if (PHP_INT_SIZE === 4) {
- return self::secretbox_decrypt(
- $ifp,
- $ofp,
- $mlen,
- $nonce,
- ParagonIE_Sodium_Crypto32::box_beforenm(
- ParagonIE_Sodium_Crypto32::box_secretkey($boxKeypair),
- ParagonIE_Sodium_Crypto32::box_publickey($boxKeypair)
- )
- );
- }
- return self::secretbox_decrypt(
- $ifp,
- $ofp,
- $mlen,
- $nonce,
- ParagonIE_Sodium_Crypto::box_beforenm(
- ParagonIE_Sodium_Crypto::box_secretkey($boxKeypair),
- ParagonIE_Sodium_Crypto::box_publickey($boxKeypair)
- )
- );
- }
-
- /**
- * Encrypt a file
- *
- * @param resource $ifp
- * @param resource $ofp
- * @param int $mlen
- * @param string $nonce
- * @param string $key
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function secretbox_encrypt($ifp, $ofp, $mlen, $nonce, $key)
- {
- if (PHP_INT_SIZE === 4) {
- return self::secretbox_encrypt_core32($ifp, $ofp, $mlen, $nonce, $key);
- }
-
- $plaintext = fread($ifp, 32);
- if (!is_string($plaintext)) {
- throw new SodiumException('Could not read input file');
- }
- $first32 = self::ftell($ifp);
-
- /** @var string $subkey */
- $subkey = ParagonIE_Sodium_Core_HSalsa20::hsalsa20($nonce, $key);
-
- /** @var string $realNonce */
- $realNonce = ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8);
-
- /** @var string $block0 */
- $block0 = str_repeat("\x00", 32);
-
- /** @var int $mlen - Length of the plaintext message */
- $mlen0 = $mlen;
- if ($mlen0 > 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES) {
- $mlen0 = 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES;
- }
- $block0 .= ParagonIE_Sodium_Core_Util::substr($plaintext, 0, $mlen0);
-
- /** @var string $block0 */
- $block0 = ParagonIE_Sodium_Core_Salsa20::salsa20_xor(
- $block0,
- $realNonce,
- $subkey
- );
-
- $state = new ParagonIE_Sodium_Core_Poly1305_State(
- ParagonIE_Sodium_Core_Util::substr(
- $block0,
- 0,
- ParagonIE_Sodium_Crypto::onetimeauth_poly1305_KEYBYTES
- )
- );
-
- // Pre-write 16 blank bytes for the Poly1305 tag
- $start = self::ftell($ofp);
- fwrite($ofp, str_repeat("\x00", 16));
-
- /** @var string $c */
- $cBlock = ParagonIE_Sodium_Core_Util::substr(
- $block0,
- ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES
- );
- $state->update($cBlock);
- fwrite($ofp, $cBlock);
- $mlen -= 32;
-
- /** @var int $iter */
- $iter = 1;
-
- /** @var int $incr */
- $incr = self::BUFFER_SIZE >> 6;
-
- /*
- * Set the cursor to the end of the first half-block. All future bytes will
- * generated from salsa20_xor_ic, starting from 1 (second block).
- */
- fseek($ifp, $first32, SEEK_SET);
-
- while ($mlen > 0) {
- $blockSize = $mlen > self::BUFFER_SIZE
- ? self::BUFFER_SIZE
- : $mlen;
- $plaintext = fread($ifp, $blockSize);
- if (!is_string($plaintext)) {
- throw new SodiumException('Could not read input file');
- }
- $cBlock = ParagonIE_Sodium_Core_Salsa20::salsa20_xor_ic(
- $plaintext,
- $realNonce,
- $iter,
- $subkey
- );
- fwrite($ofp, $cBlock, $blockSize);
- $state->update($cBlock);
-
- $mlen -= $blockSize;
- $iter += $incr;
- }
- try {
- ParagonIE_Sodium_Compat::memzero($block0);
- ParagonIE_Sodium_Compat::memzero($subkey);
- } catch (SodiumException $ex) {
- $block0 = null;
- $subkey = null;
- }
- $end = self::ftell($ofp);
-
- /*
- * Write the Poly1305 authentication tag that provides integrity
- * over the ciphertext (encrypt-then-MAC)
- */
- fseek($ofp, $start, SEEK_SET);
- fwrite($ofp, $state->finish(), ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_MACBYTES);
- fseek($ofp, $end, SEEK_SET);
- unset($state);
-
- return true;
- }
-
- /**
- * Decrypt a file
- *
- * @param resource $ifp
- * @param resource $ofp
- * @param int $mlen
- * @param string $nonce
- * @param string $key
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function secretbox_decrypt($ifp, $ofp, $mlen, $nonce, $key)
- {
- if (PHP_INT_SIZE === 4) {
- return self::secretbox_decrypt_core32($ifp, $ofp, $mlen, $nonce, $key);
- }
- $tag = fread($ifp, 16);
- if (!is_string($tag)) {
- throw new SodiumException('Could not read input file');
- }
-
- /** @var string $subkey */
- $subkey = ParagonIE_Sodium_Core_HSalsa20::hsalsa20($nonce, $key);
-
- /** @var string $realNonce */
- $realNonce = ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8);
-
- /** @var string $block0 */
- $block0 = ParagonIE_Sodium_Core_Salsa20::salsa20(
- 64,
- ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8),
- $subkey
- );
-
- /* Verify the Poly1305 MAC -before- attempting to decrypt! */
- $state = new ParagonIE_Sodium_Core_Poly1305_State(self::substr($block0, 0, 32));
- if (!self::onetimeauth_verify($state, $ifp, $tag, $mlen)) {
- throw new SodiumException('Invalid MAC');
- }
-
- /*
- * Set the cursor to the end of the first half-block. All future bytes will
- * generated from salsa20_xor_ic, starting from 1 (second block).
- */
- $first32 = fread($ifp, 32);
- if (!is_string($first32)) {
- throw new SodiumException('Could not read input file');
- }
- $first32len = self::strlen($first32);
- fwrite(
- $ofp,
- self::xorStrings(
- self::substr($block0, 32, $first32len),
- self::substr($first32, 0, $first32len)
- )
- );
- $mlen -= 32;
-
- /** @var int $iter */
- $iter = 1;
-
- /** @var int $incr */
- $incr = self::BUFFER_SIZE >> 6;
-
- /* Decrypts ciphertext, writes to output file. */
- while ($mlen > 0) {
- $blockSize = $mlen > self::BUFFER_SIZE
- ? self::BUFFER_SIZE
- : $mlen;
- $ciphertext = fread($ifp, $blockSize);
- if (!is_string($ciphertext)) {
- throw new SodiumException('Could not read input file');
- }
- $pBlock = ParagonIE_Sodium_Core_Salsa20::salsa20_xor_ic(
- $ciphertext,
- $realNonce,
- $iter,
- $subkey
- );
- fwrite($ofp, $pBlock, $blockSize);
- $mlen -= $blockSize;
- $iter += $incr;
- }
- return true;
- }
-
- /**
- * @param ParagonIE_Sodium_Core_Poly1305_State $state
- * @param resource $ifp
- * @param string $tag
- * @param int $mlen
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function onetimeauth_verify(
- ParagonIE_Sodium_Core_Poly1305_State $state,
- $ifp,
- $tag = '',
- $mlen = 0
- ) {
- /** @var int $pos */
- $pos = self::ftell($ifp);
-
- /** @var int $iter */
- $iter = 1;
-
- /** @var int $incr */
- $incr = self::BUFFER_SIZE >> 6;
-
- while ($mlen > 0) {
- $blockSize = $mlen > self::BUFFER_SIZE
- ? self::BUFFER_SIZE
- : $mlen;
- $ciphertext = fread($ifp, $blockSize);
- if (!is_string($ciphertext)) {
- throw new SodiumException('Could not read input file');
- }
- $state->update($ciphertext);
- $mlen -= $blockSize;
- $iter += $incr;
- }
- $res = ParagonIE_Sodium_Core_Util::verify_16($tag, $state->finish());
-
- fseek($ifp, $pos, SEEK_SET);
- return $res;
- }
-
- /**
- * Update a hash context with the contents of a file, without
- * loading the entire file into memory.
- *
- * @param resource|HashContext $hash
- * @param resource $fp
- * @param int $size
- * @return resource|object Resource on PHP < 7.2, HashContext object on PHP >= 7.2
- * @throws SodiumException
- * @throws TypeError
- * @psalm-suppress PossiblyInvalidArgument
- * PHP 7.2 changes from a resource to an object,
- * which causes Psalm to complain about an error.
- * @psalm-suppress TypeCoercion
- * Ditto.
- */
- public static function updateHashWithFile($hash, $fp, $size = 0)
- {
- /* Type checks: */
- if (PHP_VERSION_ID < 70200) {
- if (!is_resource($hash)) {
- throw new TypeError('Argument 1 must be a resource, ' . gettype($hash) . ' given.');
- }
- } else {
- if (!is_object($hash)) {
- throw new TypeError('Argument 1 must be an object (PHP 7.2+), ' . gettype($hash) . ' given.');
- }
- }
-
- if (!is_resource($fp)) {
- throw new TypeError('Argument 2 must be a resource, ' . gettype($fp) . ' given.');
- }
- if (!is_int($size)) {
- throw new TypeError('Argument 3 must be an integer, ' . gettype($size) . ' given.');
- }
-
- /** @var int $originalPosition */
- $originalPosition = self::ftell($fp);
-
- // Move file pointer to beginning of file
- fseek($fp, 0, SEEK_SET);
- for ($i = 0; $i < $size; $i += self::BUFFER_SIZE) {
- /** @var string|bool $message */
- $message = fread(
- $fp,
- ($size - $i) > self::BUFFER_SIZE
- ? $size - $i
- : self::BUFFER_SIZE
- );
- if (!is_string($message)) {
- throw new SodiumException('Unexpected error reading from file.');
- }
- /** @var string $message */
- /** @psalm-suppress InvalidArgument */
- self::hash_update($hash, $message);
- }
- // Reset file pointer's position
- fseek($fp, $originalPosition, SEEK_SET);
- return $hash;
- }
-
- /**
- * Sign a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_sign_detached(), but produces
- * the same result. (32-bit)
- *
- * @param string $filePath Absolute path to a file on the filesystem
- * @param string $secretKey Secret signing key
- *
- * @return string Ed25519 signature
- * @throws SodiumException
- * @throws TypeError
- */
- private static function sign_core32($filePath, $secretKey)
- {
- /** @var int|bool $size */
- $size = filesize($filePath);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
- /** @var int $size */
-
- /** @var resource|bool $fp */
- $fp = fopen($filePath, 'rb');
- if (!is_resource($fp)) {
- throw new SodiumException('Could not open input file for reading');
- }
- /** @var resource $fp */
-
- /** @var string $az */
- $az = hash('sha512', self::substr($secretKey, 0, 32), true);
-
- $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
- $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
-
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($az, 32, 32));
- /** @var resource $hs */
- $hs = self::updateHashWithFile($hs, $fp, $size);
-
- /** @var string $nonceHash */
- $nonceHash = hash_final($hs, true);
-
- /** @var string $pk */
- $pk = self::substr($secretKey, 32, 32);
-
- /** @var string $nonce */
- $nonce = ParagonIE_Sodium_Core32_Ed25519::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
-
- /** @var string $sig */
- $sig = ParagonIE_Sodium_Core32_Ed25519::ge_p3_tobytes(
- ParagonIE_Sodium_Core32_Ed25519::ge_scalarmult_base($nonce)
- );
-
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($sig, 0, 32));
- self::hash_update($hs, self::substr($pk, 0, 32));
- /** @var resource $hs */
- $hs = self::updateHashWithFile($hs, $fp, $size);
-
- /** @var string $hramHash */
- $hramHash = hash_final($hs, true);
-
- /** @var string $hram */
- $hram = ParagonIE_Sodium_Core32_Ed25519::sc_reduce($hramHash);
-
- /** @var string $sigAfter */
- $sigAfter = ParagonIE_Sodium_Core32_Ed25519::sc_muladd($hram, $az, $nonce);
-
- /** @var string $sig */
- $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
-
- try {
- ParagonIE_Sodium_Compat::memzero($az);
- } catch (SodiumException $ex) {
- $az = null;
- }
- fclose($fp);
- return $sig;
- }
-
- /**
- *
- * Verify a file (rather than a string). Uses less memory than
- * ParagonIE_Sodium_Compat::crypto_sign_verify_detached(), but
- * produces the same result. (32-bit)
- *
- * @param string $sig Ed25519 signature
- * @param string $filePath Absolute path to a file on the filesystem
- * @param string $publicKey Signing public key
- *
- * @return bool
- * @throws SodiumException
- * @throws Exception
- */
- public static function verify_core32($sig, $filePath, $publicKey)
- {
- /* Security checks */
- if (ParagonIE_Sodium_Core32_Ed25519::check_S_lt_L(self::substr($sig, 32, 32))) {
- throw new SodiumException('S < L - Invalid signature');
- }
- if (ParagonIE_Sodium_Core32_Ed25519::small_order($sig)) {
- throw new SodiumException('Signature is on too small of an order');
- }
- if ((self::chrToInt($sig[63]) & 224) !== 0) {
- throw new SodiumException('Invalid signature');
- }
- $d = 0;
- for ($i = 0; $i < 32; ++$i) {
- $d |= self::chrToInt($publicKey[$i]);
- }
- if ($d === 0) {
- throw new SodiumException('All zero public key');
- }
-
- /** @var int|bool $size */
- $size = filesize($filePath);
- if (!is_int($size)) {
- throw new SodiumException('Could not obtain the file size');
- }
- /** @var int $size */
-
- /** @var resource|bool $fp */
- $fp = fopen($filePath, 'rb');
- if (!is_resource($fp)) {
- throw new SodiumException('Could not open input file for reading');
- }
- /** @var resource $fp */
-
- /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
- $orig = ParagonIE_Sodium_Compat::$fastMult;
-
- // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
- ParagonIE_Sodium_Compat::$fastMult = true;
-
- /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $A */
- $A = ParagonIE_Sodium_Core32_Ed25519::ge_frombytes_negate_vartime($publicKey);
-
- $hs = hash_init('sha512');
- self::hash_update($hs, self::substr($sig, 0, 32));
- self::hash_update($hs, self::substr($publicKey, 0, 32));
- /** @var resource $hs */
- $hs = self::updateHashWithFile($hs, $fp, $size);
- /** @var string $hDigest */
- $hDigest = hash_final($hs, true);
-
- /** @var string $h */
- $h = ParagonIE_Sodium_Core32_Ed25519::sc_reduce($hDigest) . self::substr($hDigest, 32);
-
- /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $R */
- $R = ParagonIE_Sodium_Core32_Ed25519::ge_double_scalarmult_vartime(
- $h,
- $A,
- self::substr($sig, 32)
- );
-
- /** @var string $rcheck */
- $rcheck = ParagonIE_Sodium_Core32_Ed25519::ge_tobytes($R);
-
- // Close the file handle
- fclose($fp);
-
- // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
- ParagonIE_Sodium_Compat::$fastMult = $orig;
- return self::verify_32($rcheck, self::substr($sig, 0, 32));
- }
-
- /**
- * Encrypt a file (32-bit)
- *
- * @param resource $ifp
- * @param resource $ofp
- * @param int $mlen
- * @param string $nonce
- * @param string $key
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function secretbox_encrypt_core32($ifp, $ofp, $mlen, $nonce, $key)
- {
- $plaintext = fread($ifp, 32);
- if (!is_string($plaintext)) {
- throw new SodiumException('Could not read input file');
- }
- $first32 = self::ftell($ifp);
-
- /** @var string $subkey */
- $subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key);
-
- /** @var string $realNonce */
- $realNonce = ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
-
- /** @var string $block0 */
- $block0 = str_repeat("\x00", 32);
-
- /** @var int $mlen - Length of the plaintext message */
- $mlen0 = $mlen;
- if ($mlen0 > 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES) {
- $mlen0 = 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES;
- }
- $block0 .= ParagonIE_Sodium_Core32_Util::substr($plaintext, 0, $mlen0);
-
- /** @var string $block0 */
- $block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor(
- $block0,
- $realNonce,
- $subkey
- );
-
- $state = new ParagonIE_Sodium_Core32_Poly1305_State(
- ParagonIE_Sodium_Core32_Util::substr(
- $block0,
- 0,
- ParagonIE_Sodium_Crypto::onetimeauth_poly1305_KEYBYTES
- )
- );
-
- // Pre-write 16 blank bytes for the Poly1305 tag
- $start = self::ftell($ofp);
- fwrite($ofp, str_repeat("\x00", 16));
-
- /** @var string $c */
- $cBlock = ParagonIE_Sodium_Core32_Util::substr(
- $block0,
- ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES
- );
- $state->update($cBlock);
- fwrite($ofp, $cBlock);
- $mlen -= 32;
-
- /** @var int $iter */
- $iter = 1;
-
- /** @var int $incr */
- $incr = self::BUFFER_SIZE >> 6;
-
- /*
- * Set the cursor to the end of the first half-block. All future bytes will
- * generated from salsa20_xor_ic, starting from 1 (second block).
- */
- fseek($ifp, $first32, SEEK_SET);
-
- while ($mlen > 0) {
- $blockSize = $mlen > self::BUFFER_SIZE
- ? self::BUFFER_SIZE
- : $mlen;
- $plaintext = fread($ifp, $blockSize);
- if (!is_string($plaintext)) {
- throw new SodiumException('Could not read input file');
- }
- $cBlock = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic(
- $plaintext,
- $realNonce,
- $iter,
- $subkey
- );
- fwrite($ofp, $cBlock, $blockSize);
- $state->update($cBlock);
-
- $mlen -= $blockSize;
- $iter += $incr;
- }
- try {
- ParagonIE_Sodium_Compat::memzero($block0);
- ParagonIE_Sodium_Compat::memzero($subkey);
- } catch (SodiumException $ex) {
- $block0 = null;
- $subkey = null;
- }
- $end = self::ftell($ofp);
-
- /*
- * Write the Poly1305 authentication tag that provides integrity
- * over the ciphertext (encrypt-then-MAC)
- */
- fseek($ofp, $start, SEEK_SET);
- fwrite($ofp, $state->finish(), ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_MACBYTES);
- fseek($ofp, $end, SEEK_SET);
- unset($state);
-
- return true;
- }
-
- /**
- * Decrypt a file (32-bit)
- *
- * @param resource $ifp
- * @param resource $ofp
- * @param int $mlen
- * @param string $nonce
- * @param string $key
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function secretbox_decrypt_core32($ifp, $ofp, $mlen, $nonce, $key)
- {
- $tag = fread($ifp, 16);
- if (!is_string($tag)) {
- throw new SodiumException('Could not read input file');
- }
-
- /** @var string $subkey */
- $subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key);
-
- /** @var string $realNonce */
- $realNonce = ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
-
- /** @var string $block0 */
- $block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20(
- 64,
- ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
- $subkey
- );
-
- /* Verify the Poly1305 MAC -before- attempting to decrypt! */
- $state = new ParagonIE_Sodium_Core32_Poly1305_State(self::substr($block0, 0, 32));
- if (!self::onetimeauth_verify_core32($state, $ifp, $tag, $mlen)) {
- throw new SodiumException('Invalid MAC');
- }
-
- /*
- * Set the cursor to the end of the first half-block. All future bytes will
- * generated from salsa20_xor_ic, starting from 1 (second block).
- */
- $first32 = fread($ifp, 32);
- if (!is_string($first32)) {
- throw new SodiumException('Could not read input file');
- }
- $first32len = self::strlen($first32);
- fwrite(
- $ofp,
- self::xorStrings(
- self::substr($block0, 32, $first32len),
- self::substr($first32, 0, $first32len)
- )
- );
- $mlen -= 32;
-
- /** @var int $iter */
- $iter = 1;
-
- /** @var int $incr */
- $incr = self::BUFFER_SIZE >> 6;
-
- /* Decrypts ciphertext, writes to output file. */
- while ($mlen > 0) {
- $blockSize = $mlen > self::BUFFER_SIZE
- ? self::BUFFER_SIZE
- : $mlen;
- $ciphertext = fread($ifp, $blockSize);
- if (!is_string($ciphertext)) {
- throw new SodiumException('Could not read input file');
- }
- $pBlock = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic(
- $ciphertext,
- $realNonce,
- $iter,
- $subkey
- );
- fwrite($ofp, $pBlock, $blockSize);
- $mlen -= $blockSize;
- $iter += $incr;
- }
- return true;
- }
-
- /**
- * One-time message authentication for 32-bit systems
- *
- * @param ParagonIE_Sodium_Core32_Poly1305_State $state
- * @param resource $ifp
- * @param string $tag
- * @param int $mlen
- * @return bool
- * @throws SodiumException
- * @throws TypeError
- */
- protected static function onetimeauth_verify_core32(
- ParagonIE_Sodium_Core32_Poly1305_State $state,
- $ifp,
- $tag = '',
- $mlen = 0
- ) {
- /** @var int $pos */
- $pos = self::ftell($ifp);
-
- while ($mlen > 0) {
- $blockSize = $mlen > self::BUFFER_SIZE
- ? self::BUFFER_SIZE
- : $mlen;
- $ciphertext = fread($ifp, $blockSize);
- if (!is_string($ciphertext)) {
- throw new SodiumException('Could not read input file');
- }
- $state->update($ciphertext);
- $mlen -= $blockSize;
- }
- $res = ParagonIE_Sodium_Core32_Util::verify_16($tag, $state->finish());
-
- fseek($ifp, $pos, SEEK_SET);
- return $res;
- }
-
- /**
- * @param resource $resource
- * @return int
- * @throws SodiumException
- */
- private static function ftell($resource)
- {
- $return = ftell($resource);
- if (!is_int($return)) {
- throw new SodiumException('ftell() returned false');
- }
- return (int) $return;
- }
-}
+<?php
+
+if (class_exists('ParagonIE_Sodium_File', false)) {
+ return;
+}
+/**
+ * Class ParagonIE_Sodium_File
+ */
+class ParagonIE_Sodium_File extends ParagonIE_Sodium_Core_Util
+{
+ /* PHP's default buffer size is 8192 for fread()/fwrite(). */
+ const BUFFER_SIZE = 8192;
+
+ /**
+ * Box a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_box(), but produces
+ * the same result.
+ *
+ * @param string $inputFile Absolute path to a file on the filesystem
+ * @param string $outputFile Absolute path to a file on the filesystem
+ * @param string $nonce Number to be used only once
+ * @param string $keyPair ECDH secret key and ECDH public key concatenated
+ *
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function box($inputFile, $outputFile, $nonce, $keyPair)
+ {
+ /* Type checks: */
+ if (!is_string($inputFile)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
+ }
+ if (!is_string($outputFile)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
+ }
+ if (!is_string($nonce)) {
+ throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
+ }
+
+ /* Input validation: */
+ if (!is_string($keyPair)) {
+ throw new TypeError('Argument 4 must be a string, ' . gettype($keyPair) . ' given.');
+ }
+ if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_NONCEBYTES) {
+ throw new TypeError('Argument 3 must be CRYPTO_BOX_NONCEBYTES bytes');
+ }
+ if (self::strlen($keyPair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new TypeError('Argument 4 must be CRYPTO_BOX_KEYPAIRBYTES bytes');
+ }
+
+ /** @var int $size */
+ $size = filesize($inputFile);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $ifp */
+ $ifp = fopen($inputFile, 'rb');
+ if (!is_resource($ifp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var resource $ofp */
+ $ofp = fopen($outputFile, 'wb');
+ if (!is_resource($ofp)) {
+ fclose($ifp);
+ throw new SodiumException('Could not open output file for writing');
+ }
+
+ $res = self::box_encrypt($ifp, $ofp, $size, $nonce, $keyPair);
+ fclose($ifp);
+ fclose($ofp);
+ return $res;
+ }
+
+ /**
+ * Open a boxed file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_box_open(), but produces
+ * the same result.
+ *
+ * Warning: Does not protect against TOCTOU attacks. You should
+ * just load the file into memory and use crypto_box_open() if
+ * you are worried about those.
+ *
+ * @param string $inputFile
+ * @param string $outputFile
+ * @param string $nonce
+ * @param string $keypair
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function box_open($inputFile, $outputFile, $nonce, $keypair)
+ {
+ /* Type checks: */
+ if (!is_string($inputFile)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
+ }
+ if (!is_string($outputFile)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
+ }
+ if (!is_string($nonce)) {
+ throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
+ }
+ if (!is_string($keypair)) {
+ throw new TypeError('Argument 4 must be a string, ' . gettype($keypair) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_NONCEBYTES) {
+ throw new TypeError('Argument 4 must be CRYPTO_BOX_NONCEBYTES bytes');
+ }
+ if (self::strlen($keypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new TypeError('Argument 4 must be CRYPTO_BOX_KEYPAIRBYTES bytes');
+ }
+
+ /** @var int $size */
+ $size = filesize($inputFile);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $ifp */
+ $ifp = fopen($inputFile, 'rb');
+ if (!is_resource($ifp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var resource $ofp */
+ $ofp = fopen($outputFile, 'wb');
+ if (!is_resource($ofp)) {
+ fclose($ifp);
+ throw new SodiumException('Could not open output file for writing');
+ }
+
+ $res = self::box_decrypt($ifp, $ofp, $size, $nonce, $keypair);
+ fclose($ifp);
+ fclose($ofp);
+ try {
+ ParagonIE_Sodium_Compat::memzero($nonce);
+ ParagonIE_Sodium_Compat::memzero($ephKeypair);
+ } catch (SodiumException $ex) {
+ if (isset($ephKeypair)) {
+ unset($ephKeypair);
+ }
+ }
+ return $res;
+ }
+
+ /**
+ * Seal a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_box_seal(), but produces
+ * the same result.
+ *
+ * @param string $inputFile Absolute path to a file on the filesystem
+ * @param string $outputFile Absolute path to a file on the filesystem
+ * @param string $publicKey ECDH public key
+ *
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function box_seal($inputFile, $outputFile, $publicKey)
+ {
+ /* Type checks: */
+ if (!is_string($inputFile)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
+ }
+ if (!is_string($outputFile)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
+ }
+ if (!is_string($publicKey)) {
+ throw new TypeError('Argument 3 must be a string, ' . gettype($publicKey) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($publicKey) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES) {
+ throw new TypeError('Argument 3 must be CRYPTO_BOX_PUBLICKEYBYTES bytes');
+ }
+
+ /** @var int $size */
+ $size = filesize($inputFile);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $ifp */
+ $ifp = fopen($inputFile, 'rb');
+ if (!is_resource($ifp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var resource $ofp */
+ $ofp = fopen($outputFile, 'wb');
+ if (!is_resource($ofp)) {
+ fclose($ifp);
+ throw new SodiumException('Could not open output file for writing');
+ }
+
+ /** @var string $ephKeypair */
+ $ephKeypair = ParagonIE_Sodium_Compat::crypto_box_keypair();
+
+ /** @var string $msgKeypair */
+ $msgKeypair = ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey(
+ ParagonIE_Sodium_Compat::crypto_box_secretkey($ephKeypair),
+ $publicKey
+ );
+
+ /** @var string $ephemeralPK */
+ $ephemeralPK = ParagonIE_Sodium_Compat::crypto_box_publickey($ephKeypair);
+
+ /** @var string $nonce */
+ $nonce = ParagonIE_Sodium_Compat::crypto_generichash(
+ $ephemeralPK . $publicKey,
+ '',
+ 24
+ );
+
+ /** @var int $firstWrite */
+ $firstWrite = fwrite(
+ $ofp,
+ $ephemeralPK,
+ ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES
+ );
+ if (!is_int($firstWrite)) {
+ fclose($ifp);
+ fclose($ofp);
+ ParagonIE_Sodium_Compat::memzero($ephKeypair);
+ throw new SodiumException('Could not write to output file');
+ }
+ if ($firstWrite !== ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES) {
+ ParagonIE_Sodium_Compat::memzero($ephKeypair);
+ fclose($ifp);
+ fclose($ofp);
+ throw new SodiumException('Error writing public key to output file');
+ }
+
+ $res = self::box_encrypt($ifp, $ofp, $size, $nonce, $msgKeypair);
+ fclose($ifp);
+ fclose($ofp);
+ try {
+ ParagonIE_Sodium_Compat::memzero($nonce);
+ ParagonIE_Sodium_Compat::memzero($ephKeypair);
+ } catch (SodiumException $ex) {
+ /** @psalm-suppress PossiblyUndefinedVariable */
+ unset($ephKeypair);
+ }
+ return $res;
+ }
+
+ /**
+ * Open a sealed file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_box_seal_open(), but produces
+ * the same result.
+ *
+ * Warning: Does not protect against TOCTOU attacks. You should
+ * just load the file into memory and use crypto_box_seal_open() if
+ * you are worried about those.
+ *
+ * @param string $inputFile
+ * @param string $outputFile
+ * @param string $ecdhKeypair
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function box_seal_open($inputFile, $outputFile, $ecdhKeypair)
+ {
+ /* Type checks: */
+ if (!is_string($inputFile)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
+ }
+ if (!is_string($outputFile)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
+ }
+ if (!is_string($ecdhKeypair)) {
+ throw new TypeError('Argument 3 must be a string, ' . gettype($ecdhKeypair) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($ecdhKeypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) {
+ throw new TypeError('Argument 3 must be CRYPTO_BOX_KEYPAIRBYTES bytes');
+ }
+
+ $publicKey = ParagonIE_Sodium_Compat::crypto_box_publickey($ecdhKeypair);
+
+ /** @var int $size */
+ $size = filesize($inputFile);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $ifp */
+ $ifp = fopen($inputFile, 'rb');
+ if (!is_resource($ifp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var resource $ofp */
+ $ofp = fopen($outputFile, 'wb');
+ if (!is_resource($ofp)) {
+ fclose($ifp);
+ throw new SodiumException('Could not open output file for writing');
+ }
+
+ $ephemeralPK = fread($ifp, ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES);
+ if (!is_string($ephemeralPK)) {
+ throw new SodiumException('Could not read input file');
+ }
+ if (self::strlen($ephemeralPK) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES) {
+ fclose($ifp);
+ fclose($ofp);
+ throw new SodiumException('Could not read public key from sealed file');
+ }
+
+ $nonce = ParagonIE_Sodium_Compat::crypto_generichash(
+ $ephemeralPK . $publicKey,
+ '',
+ 24
+ );
+ $msgKeypair = ParagonIE_Sodium_Compat::crypto_box_keypair_from_secretkey_and_publickey(
+ ParagonIE_Sodium_Compat::crypto_box_secretkey($ecdhKeypair),
+ $ephemeralPK
+ );
+
+ $res = self::box_decrypt($ifp, $ofp, $size, $nonce, $msgKeypair);
+ fclose($ifp);
+ fclose($ofp);
+ try {
+ ParagonIE_Sodium_Compat::memzero($nonce);
+ ParagonIE_Sodium_Compat::memzero($ephKeypair);
+ } catch (SodiumException $ex) {
+ if (isset($ephKeypair)) {
+ unset($ephKeypair);
+ }
+ }
+ return $res;
+ }
+
+ /**
+ * Calculate the BLAKE2b hash of a file.
+ *
+ * @param string $filePath Absolute path to a file on the filesystem
+ * @param string|null $key BLAKE2b key
+ * @param int $outputLength Length of hash output
+ *
+ * @return string BLAKE2b hash
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress FailedTypeResolution
+ */
+ public static function generichash($filePath, $key = '', $outputLength = 32)
+ {
+ /* Type checks: */
+ if (!is_string($filePath)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($filePath) . ' given.');
+ }
+ if (!is_string($key)) {
+ if (is_null($key)) {
+ $key = '';
+ } else {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($key) . ' given.');
+ }
+ }
+ if (!is_int($outputLength)) {
+ if (!is_numeric($outputLength)) {
+ throw new TypeError('Argument 3 must be an integer, ' . gettype($outputLength) . ' given.');
+ }
+ $outputLength = (int) $outputLength;
+ }
+
+ /* Input validation: */
+ if (!empty($key)) {
+ if (self::strlen($key) < ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_KEYBYTES_MIN) {
+ throw new TypeError('Argument 2 must be at least CRYPTO_GENERICHASH_KEYBYTES_MIN bytes');
+ }
+ if (self::strlen($key) > ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_KEYBYTES_MAX) {
+ throw new TypeError('Argument 2 must be at most CRYPTO_GENERICHASH_KEYBYTES_MAX bytes');
+ }
+ }
+ if ($outputLength < ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_BYTES_MIN) {
+ throw new SodiumException('Argument 3 must be at least CRYPTO_GENERICHASH_BYTES_MIN');
+ }
+ if ($outputLength > ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_BYTES_MAX) {
+ throw new SodiumException('Argument 3 must be at least CRYPTO_GENERICHASH_BYTES_MAX');
+ }
+
+ /** @var int $size */
+ $size = filesize($filePath);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $fp */
+ $fp = fopen($filePath, 'rb');
+ if (!is_resource($fp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+ $ctx = ParagonIE_Sodium_Compat::crypto_generichash_init($key, $outputLength);
+ while ($size > 0) {
+ $blockSize = $size > 64
+ ? 64
+ : $size;
+ $read = fread($fp, $blockSize);
+ if (!is_string($read)) {
+ throw new SodiumException('Could not read input file');
+ }
+ ParagonIE_Sodium_Compat::crypto_generichash_update($ctx, $read);
+ $size -= $blockSize;
+ }
+
+ fclose($fp);
+ return ParagonIE_Sodium_Compat::crypto_generichash_final($ctx, $outputLength);
+ }
+
+ /**
+ * Encrypt a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_secretbox(), but produces
+ * the same result.
+ *
+ * @param string $inputFile Absolute path to a file on the filesystem
+ * @param string $outputFile Absolute path to a file on the filesystem
+ * @param string $nonce Number to be used only once
+ * @param string $key Encryption key
+ *
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function secretbox($inputFile, $outputFile, $nonce, $key)
+ {
+ /* Type checks: */
+ if (!is_string($inputFile)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given..');
+ }
+ if (!is_string($outputFile)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
+ }
+ if (!is_string($nonce)) {
+ throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_NONCEBYTES) {
+ throw new TypeError('Argument 3 must be CRYPTO_SECRETBOX_NONCEBYTES bytes');
+ }
+ if (!is_string($key)) {
+ throw new TypeError('Argument 4 must be a string, ' . gettype($key) . ' given.');
+ }
+ if (self::strlen($key) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_KEYBYTES) {
+ throw new TypeError('Argument 4 must be CRYPTO_SECRETBOX_KEYBYTES bytes');
+ }
+
+ /** @var int $size */
+ $size = filesize($inputFile);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $ifp */
+ $ifp = fopen($inputFile, 'rb');
+ if (!is_resource($ifp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var resource $ofp */
+ $ofp = fopen($outputFile, 'wb');
+ if (!is_resource($ofp)) {
+ fclose($ifp);
+ throw new SodiumException('Could not open output file for writing');
+ }
+
+ $res = self::secretbox_encrypt($ifp, $ofp, $size, $nonce, $key);
+ fclose($ifp);
+ fclose($ofp);
+ return $res;
+ }
+ /**
+ * Seal a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_secretbox_open(), but produces
+ * the same result.
+ *
+ * Warning: Does not protect against TOCTOU attacks. You should
+ * just load the file into memory and use crypto_secretbox_open() if
+ * you are worried about those.
+ *
+ * @param string $inputFile
+ * @param string $outputFile
+ * @param string $nonce
+ * @param string $key
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function secretbox_open($inputFile, $outputFile, $nonce, $key)
+ {
+ /* Type checks: */
+ if (!is_string($inputFile)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($inputFile) . ' given.');
+ }
+ if (!is_string($outputFile)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($outputFile) . ' given.');
+ }
+ if (!is_string($nonce)) {
+ throw new TypeError('Argument 3 must be a string, ' . gettype($nonce) . ' given.');
+ }
+ if (!is_string($key)) {
+ throw new TypeError('Argument 4 must be a string, ' . gettype($key) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($nonce) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_NONCEBYTES) {
+ throw new TypeError('Argument 4 must be CRYPTO_SECRETBOX_NONCEBYTES bytes');
+ }
+ if (self::strlen($key) !== ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_KEYBYTES) {
+ throw new TypeError('Argument 4 must be CRYPTO_SECRETBOXBOX_KEYBYTES bytes');
+ }
+
+ /** @var int $size */
+ $size = filesize($inputFile);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $ifp */
+ $ifp = fopen($inputFile, 'rb');
+ if (!is_resource($ifp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var resource $ofp */
+ $ofp = fopen($outputFile, 'wb');
+ if (!is_resource($ofp)) {
+ fclose($ifp);
+ throw new SodiumException('Could not open output file for writing');
+ }
+
+ $res = self::secretbox_decrypt($ifp, $ofp, $size, $nonce, $key);
+ fclose($ifp);
+ fclose($ofp);
+ try {
+ ParagonIE_Sodium_Compat::memzero($key);
+ } catch (SodiumException $ex) {
+ /** @psalm-suppress PossiblyUndefinedVariable */
+ unset($key);
+ }
+ return $res;
+ }
+
+ /**
+ * Sign a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_sign_detached(), but produces
+ * the same result.
+ *
+ * @param string $filePath Absolute path to a file on the filesystem
+ * @param string $secretKey Secret signing key
+ *
+ * @return string Ed25519 signature
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ public static function sign($filePath, $secretKey)
+ {
+ /* Type checks: */
+ if (!is_string($filePath)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($filePath) . ' given.');
+ }
+ if (!is_string($secretKey)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($secretKey) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($secretKey) !== ParagonIE_Sodium_Compat::CRYPTO_SIGN_SECRETKEYBYTES) {
+ throw new TypeError('Argument 2 must be CRYPTO_SIGN_SECRETKEYBYTES bytes');
+ }
+ if (PHP_INT_SIZE === 4) {
+ return self::sign_core32($filePath, $secretKey);
+ }
+
+ /** @var int $size */
+ $size = filesize($filePath);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $fp */
+ $fp = fopen($filePath, 'rb');
+ if (!is_resource($fp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var string $az */
+ $az = hash('sha512', self::substr($secretKey, 0, 32), true);
+
+ $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
+ $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
+
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($az, 32, 32));
+ /** @var resource $hs */
+ $hs = self::updateHashWithFile($hs, $fp, $size);
+
+ /** @var string $nonceHash */
+ $nonceHash = hash_final($hs, true);
+
+ /** @var string $pk */
+ $pk = self::substr($secretKey, 32, 32);
+
+ /** @var string $nonce */
+ $nonce = ParagonIE_Sodium_Core_Ed25519::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
+
+ /** @var string $sig */
+ $sig = ParagonIE_Sodium_Core_Ed25519::ge_p3_tobytes(
+ ParagonIE_Sodium_Core_Ed25519::ge_scalarmult_base($nonce)
+ );
+
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($sig, 0, 32));
+ self::hash_update($hs, self::substr($pk, 0, 32));
+ /** @var resource $hs */
+ $hs = self::updateHashWithFile($hs, $fp, $size);
+
+ /** @var string $hramHash */
+ $hramHash = hash_final($hs, true);
+
+ /** @var string $hram */
+ $hram = ParagonIE_Sodium_Core_Ed25519::sc_reduce($hramHash);
+
+ /** @var string $sigAfter */
+ $sigAfter = ParagonIE_Sodium_Core_Ed25519::sc_muladd($hram, $az, $nonce);
+
+ /** @var string $sig */
+ $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
+
+ try {
+ ParagonIE_Sodium_Compat::memzero($az);
+ } catch (SodiumException $ex) {
+ $az = null;
+ }
+ fclose($fp);
+ return $sig;
+ }
+
+ /**
+ * Verify a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_sign_verify_detached(), but
+ * produces the same result.
+ *
+ * @param string $sig Ed25519 signature
+ * @param string $filePath Absolute path to a file on the filesystem
+ * @param string $publicKey Signing public key
+ *
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ * @throws Exception
+ */
+ public static function verify($sig, $filePath, $publicKey)
+ {
+ /* Type checks: */
+ if (!is_string($sig)) {
+ throw new TypeError('Argument 1 must be a string, ' . gettype($sig) . ' given.');
+ }
+ if (!is_string($filePath)) {
+ throw new TypeError('Argument 2 must be a string, ' . gettype($filePath) . ' given.');
+ }
+ if (!is_string($publicKey)) {
+ throw new TypeError('Argument 3 must be a string, ' . gettype($publicKey) . ' given.');
+ }
+
+ /* Input validation: */
+ if (self::strlen($sig) !== ParagonIE_Sodium_Compat::CRYPTO_SIGN_BYTES) {
+ throw new TypeError('Argument 1 must be CRYPTO_SIGN_BYTES bytes');
+ }
+ if (self::strlen($publicKey) !== ParagonIE_Sodium_Compat::CRYPTO_SIGN_PUBLICKEYBYTES) {
+ throw new TypeError('Argument 3 must be CRYPTO_SIGN_PUBLICKEYBYTES bytes');
+ }
+ if (self::strlen($sig) < 64) {
+ throw new SodiumException('Signature is too short');
+ }
+
+ if (PHP_INT_SIZE === 4) {
+ return self::verify_core32($sig, $filePath, $publicKey);
+ }
+
+ /* Security checks */
+ if (
+ (ParagonIE_Sodium_Core_Ed25519::chrToInt($sig[63]) & 240)
+ &&
+ ParagonIE_Sodium_Core_Ed25519::check_S_lt_L(self::substr($sig, 32, 32))
+ ) {
+ throw new SodiumException('S < L - Invalid signature');
+ }
+ if (ParagonIE_Sodium_Core_Ed25519::small_order($sig)) {
+ throw new SodiumException('Signature is on too small of an order');
+ }
+ if ((self::chrToInt($sig[63]) & 224) !== 0) {
+ throw new SodiumException('Invalid signature');
+ }
+ $d = 0;
+ for ($i = 0; $i < 32; ++$i) {
+ $d |= self::chrToInt($publicKey[$i]);
+ }
+ if ($d === 0) {
+ throw new SodiumException('All zero public key');
+ }
+
+ /** @var int $size */
+ $size = filesize($filePath);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ /** @var resource $fp */
+ $fp = fopen($filePath, 'rb');
+ if (!is_resource($fp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
+ $orig = ParagonIE_Sodium_Compat::$fastMult;
+
+ // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
+ ParagonIE_Sodium_Compat::$fastMult = true;
+
+ /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P3 $A */
+ $A = ParagonIE_Sodium_Core_Ed25519::ge_frombytes_negate_vartime($publicKey);
+
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($sig, 0, 32));
+ self::hash_update($hs, self::substr($publicKey, 0, 32));
+ /** @var resource $hs */
+ $hs = self::updateHashWithFile($hs, $fp, $size);
+ /** @var string $hDigest */
+ $hDigest = hash_final($hs, true);
+
+ /** @var string $h */
+ $h = ParagonIE_Sodium_Core_Ed25519::sc_reduce($hDigest) . self::substr($hDigest, 32);
+
+ /** @var ParagonIE_Sodium_Core_Curve25519_Ge_P2 $R */
+ $R = ParagonIE_Sodium_Core_Ed25519::ge_double_scalarmult_vartime(
+ $h,
+ $A,
+ self::substr($sig, 32)
+ );
+
+ /** @var string $rcheck */
+ $rcheck = ParagonIE_Sodium_Core_Ed25519::ge_tobytes($R);
+
+ // Close the file handle
+ fclose($fp);
+
+ // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
+ ParagonIE_Sodium_Compat::$fastMult = $orig;
+ return self::verify_32($rcheck, self::substr($sig, 0, 32));
+ }
+
+ /**
+ * @param resource $ifp
+ * @param resource $ofp
+ * @param int $mlen
+ * @param string $nonce
+ * @param string $boxKeypair
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function box_encrypt($ifp, $ofp, $mlen, $nonce, $boxKeypair)
+ {
+ if (PHP_INT_SIZE === 4) {
+ return self::secretbox_encrypt(
+ $ifp,
+ $ofp,
+ $mlen,
+ $nonce,
+ ParagonIE_Sodium_Crypto32::box_beforenm(
+ ParagonIE_Sodium_Crypto32::box_secretkey($boxKeypair),
+ ParagonIE_Sodium_Crypto32::box_publickey($boxKeypair)
+ )
+ );
+ }
+ return self::secretbox_encrypt(
+ $ifp,
+ $ofp,
+ $mlen,
+ $nonce,
+ ParagonIE_Sodium_Crypto::box_beforenm(
+ ParagonIE_Sodium_Crypto::box_secretkey($boxKeypair),
+ ParagonIE_Sodium_Crypto::box_publickey($boxKeypair)
+ )
+ );
+ }
+
+
+ /**
+ * @param resource $ifp
+ * @param resource $ofp
+ * @param int $mlen
+ * @param string $nonce
+ * @param string $boxKeypair
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function box_decrypt($ifp, $ofp, $mlen, $nonce, $boxKeypair)
+ {
+ if (PHP_INT_SIZE === 4) {
+ return self::secretbox_decrypt(
+ $ifp,
+ $ofp,
+ $mlen,
+ $nonce,
+ ParagonIE_Sodium_Crypto32::box_beforenm(
+ ParagonIE_Sodium_Crypto32::box_secretkey($boxKeypair),
+ ParagonIE_Sodium_Crypto32::box_publickey($boxKeypair)
+ )
+ );
+ }
+ return self::secretbox_decrypt(
+ $ifp,
+ $ofp,
+ $mlen,
+ $nonce,
+ ParagonIE_Sodium_Crypto::box_beforenm(
+ ParagonIE_Sodium_Crypto::box_secretkey($boxKeypair),
+ ParagonIE_Sodium_Crypto::box_publickey($boxKeypair)
+ )
+ );
+ }
+
+ /**
+ * Encrypt a file
+ *
+ * @param resource $ifp
+ * @param resource $ofp
+ * @param int $mlen
+ * @param string $nonce
+ * @param string $key
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function secretbox_encrypt($ifp, $ofp, $mlen, $nonce, $key)
+ {
+ if (PHP_INT_SIZE === 4) {
+ return self::secretbox_encrypt_core32($ifp, $ofp, $mlen, $nonce, $key);
+ }
+
+ $plaintext = fread($ifp, 32);
+ if (!is_string($plaintext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $first32 = self::ftell($ifp);
+
+ /** @var string $subkey */
+ $subkey = ParagonIE_Sodium_Core_HSalsa20::hsalsa20($nonce, $key);
+
+ /** @var string $realNonce */
+ $realNonce = ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8);
+
+ /** @var string $block0 */
+ $block0 = str_repeat("\x00", 32);
+
+ /** @var int $mlen - Length of the plaintext message */
+ $mlen0 = $mlen;
+ if ($mlen0 > 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES) {
+ $mlen0 = 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES;
+ }
+ $block0 .= ParagonIE_Sodium_Core_Util::substr($plaintext, 0, $mlen0);
+
+ /** @var string $block0 */
+ $block0 = ParagonIE_Sodium_Core_Salsa20::salsa20_xor(
+ $block0,
+ $realNonce,
+ $subkey
+ );
+
+ $state = new ParagonIE_Sodium_Core_Poly1305_State(
+ ParagonIE_Sodium_Core_Util::substr(
+ $block0,
+ 0,
+ ParagonIE_Sodium_Crypto::onetimeauth_poly1305_KEYBYTES
+ )
+ );
+
+ // Pre-write 16 blank bytes for the Poly1305 tag
+ $start = self::ftell($ofp);
+ fwrite($ofp, str_repeat("\x00", 16));
+
+ /** @var string $c */
+ $cBlock = ParagonIE_Sodium_Core_Util::substr(
+ $block0,
+ ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES
+ );
+ $state->update($cBlock);
+ fwrite($ofp, $cBlock);
+ $mlen -= 32;
+
+ /** @var int $iter */
+ $iter = 1;
+
+ /** @var int $incr */
+ $incr = self::BUFFER_SIZE >> 6;
+
+ /*
+ * Set the cursor to the end of the first half-block. All future bytes will
+ * generated from salsa20_xor_ic, starting from 1 (second block).
+ */
+ fseek($ifp, $first32, SEEK_SET);
+
+ while ($mlen > 0) {
+ $blockSize = $mlen > self::BUFFER_SIZE
+ ? self::BUFFER_SIZE
+ : $mlen;
+ $plaintext = fread($ifp, $blockSize);
+ if (!is_string($plaintext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $cBlock = ParagonIE_Sodium_Core_Salsa20::salsa20_xor_ic(
+ $plaintext,
+ $realNonce,
+ $iter,
+ $subkey
+ );
+ fwrite($ofp, $cBlock, $blockSize);
+ $state->update($cBlock);
+
+ $mlen -= $blockSize;
+ $iter += $incr;
+ }
+ try {
+ ParagonIE_Sodium_Compat::memzero($block0);
+ ParagonIE_Sodium_Compat::memzero($subkey);
+ } catch (SodiumException $ex) {
+ $block0 = null;
+ $subkey = null;
+ }
+ $end = self::ftell($ofp);
+
+ /*
+ * Write the Poly1305 authentication tag that provides integrity
+ * over the ciphertext (encrypt-then-MAC)
+ */
+ fseek($ofp, $start, SEEK_SET);
+ fwrite($ofp, $state->finish(), ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_MACBYTES);
+ fseek($ofp, $end, SEEK_SET);
+ unset($state);
+
+ return true;
+ }
+
+ /**
+ * Decrypt a file
+ *
+ * @param resource $ifp
+ * @param resource $ofp
+ * @param int $mlen
+ * @param string $nonce
+ * @param string $key
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function secretbox_decrypt($ifp, $ofp, $mlen, $nonce, $key)
+ {
+ if (PHP_INT_SIZE === 4) {
+ return self::secretbox_decrypt_core32($ifp, $ofp, $mlen, $nonce, $key);
+ }
+ $tag = fread($ifp, 16);
+ if (!is_string($tag)) {
+ throw new SodiumException('Could not read input file');
+ }
+
+ /** @var string $subkey */
+ $subkey = ParagonIE_Sodium_Core_HSalsa20::hsalsa20($nonce, $key);
+
+ /** @var string $realNonce */
+ $realNonce = ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8);
+
+ /** @var string $block0 */
+ $block0 = ParagonIE_Sodium_Core_Salsa20::salsa20(
+ 64,
+ ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8),
+ $subkey
+ );
+
+ /* Verify the Poly1305 MAC -before- attempting to decrypt! */
+ $state = new ParagonIE_Sodium_Core_Poly1305_State(self::substr($block0, 0, 32));
+ if (!self::onetimeauth_verify($state, $ifp, $tag, $mlen)) {
+ throw new SodiumException('Invalid MAC');
+ }
+
+ /*
+ * Set the cursor to the end of the first half-block. All future bytes will
+ * generated from salsa20_xor_ic, starting from 1 (second block).
+ */
+ $first32 = fread($ifp, 32);
+ if (!is_string($first32)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $first32len = self::strlen($first32);
+ fwrite(
+ $ofp,
+ self::xorStrings(
+ self::substr($block0, 32, $first32len),
+ self::substr($first32, 0, $first32len)
+ )
+ );
+ $mlen -= 32;
+
+ /** @var int $iter */
+ $iter = 1;
+
+ /** @var int $incr */
+ $incr = self::BUFFER_SIZE >> 6;
+
+ /* Decrypts ciphertext, writes to output file. */
+ while ($mlen > 0) {
+ $blockSize = $mlen > self::BUFFER_SIZE
+ ? self::BUFFER_SIZE
+ : $mlen;
+ $ciphertext = fread($ifp, $blockSize);
+ if (!is_string($ciphertext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $pBlock = ParagonIE_Sodium_Core_Salsa20::salsa20_xor_ic(
+ $ciphertext,
+ $realNonce,
+ $iter,
+ $subkey
+ );
+ fwrite($ofp, $pBlock, $blockSize);
+ $mlen -= $blockSize;
+ $iter += $incr;
+ }
+ return true;
+ }
+
+ /**
+ * @param ParagonIE_Sodium_Core_Poly1305_State $state
+ * @param resource $ifp
+ * @param string $tag
+ * @param int $mlen
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function onetimeauth_verify(
+ ParagonIE_Sodium_Core_Poly1305_State $state,
+ $ifp,
+ $tag = '',
+ $mlen = 0
+ ) {
+ /** @var int $pos */
+ $pos = self::ftell($ifp);
+
+ /** @var int $iter */
+ $iter = 1;
+
+ /** @var int $incr */
+ $incr = self::BUFFER_SIZE >> 6;
+
+ while ($mlen > 0) {
+ $blockSize = $mlen > self::BUFFER_SIZE
+ ? self::BUFFER_SIZE
+ : $mlen;
+ $ciphertext = fread($ifp, $blockSize);
+ if (!is_string($ciphertext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $state->update($ciphertext);
+ $mlen -= $blockSize;
+ $iter += $incr;
+ }
+ $res = ParagonIE_Sodium_Core_Util::verify_16($tag, $state->finish());
+
+ fseek($ifp, $pos, SEEK_SET);
+ return $res;
+ }
+
+ /**
+ * Update a hash context with the contents of a file, without
+ * loading the entire file into memory.
+ *
+ * @param resource|HashContext $hash
+ * @param resource $fp
+ * @param int $size
+ * @return resource|object Resource on PHP < 7.2, HashContext object on PHP >= 7.2
+ * @throws SodiumException
+ * @throws TypeError
+ * @psalm-suppress PossiblyInvalidArgument
+ * PHP 7.2 changes from a resource to an object,
+ * which causes Psalm to complain about an error.
+ * @psalm-suppress TypeCoercion
+ * Ditto.
+ */
+ public static function updateHashWithFile($hash, $fp, $size = 0)
+ {
+ /* Type checks: */
+ if (PHP_VERSION_ID < 70200) {
+ if (!is_resource($hash)) {
+ throw new TypeError('Argument 1 must be a resource, ' . gettype($hash) . ' given.');
+ }
+ } else {
+ if (!is_object($hash)) {
+ throw new TypeError('Argument 1 must be an object (PHP 7.2+), ' . gettype($hash) . ' given.');
+ }
+ }
+
+ if (!is_resource($fp)) {
+ throw new TypeError('Argument 2 must be a resource, ' . gettype($fp) . ' given.');
+ }
+ if (!is_int($size)) {
+ throw new TypeError('Argument 3 must be an integer, ' . gettype($size) . ' given.');
+ }
+
+ /** @var int $originalPosition */
+ $originalPosition = self::ftell($fp);
+
+ // Move file pointer to beginning of file
+ fseek($fp, 0, SEEK_SET);
+ for ($i = 0; $i < $size; $i += self::BUFFER_SIZE) {
+ /** @var string|bool $message */
+ $message = fread(
+ $fp,
+ ($size - $i) > self::BUFFER_SIZE
+ ? $size - $i
+ : self::BUFFER_SIZE
+ );
+ if (!is_string($message)) {
+ throw new SodiumException('Unexpected error reading from file.');
+ }
+ /** @var string $message */
+ /** @psalm-suppress InvalidArgument */
+ self::hash_update($hash, $message);
+ }
+ // Reset file pointer's position
+ fseek($fp, $originalPosition, SEEK_SET);
+ return $hash;
+ }
+
+ /**
+ * Sign a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_sign_detached(), but produces
+ * the same result. (32-bit)
+ *
+ * @param string $filePath Absolute path to a file on the filesystem
+ * @param string $secretKey Secret signing key
+ *
+ * @return string Ed25519 signature
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ private static function sign_core32($filePath, $secretKey)
+ {
+ $size = filesize($filePath);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+
+ $fp = fopen($filePath, 'rb');
+ if (!is_resource($fp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+
+ /** @var string $az */
+ $az = hash('sha512', self::substr($secretKey, 0, 32), true);
+
+ $az[0] = self::intToChr(self::chrToInt($az[0]) & 248);
+ $az[31] = self::intToChr((self::chrToInt($az[31]) & 63) | 64);
+
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($az, 32, 32));
+ /** @var resource $hs */
+ $hs = self::updateHashWithFile($hs, $fp, $size);
+
+ $nonceHash = hash_final($hs, true);
+ $pk = self::substr($secretKey, 32, 32);
+ $nonce = ParagonIE_Sodium_Core32_Ed25519::sc_reduce($nonceHash) . self::substr($nonceHash, 32);
+ $sig = ParagonIE_Sodium_Core32_Ed25519::ge_p3_tobytes(
+ ParagonIE_Sodium_Core32_Ed25519::ge_scalarmult_base($nonce)
+ );
+
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($sig, 0, 32));
+ self::hash_update($hs, self::substr($pk, 0, 32));
+ /** @var resource $hs */
+ $hs = self::updateHashWithFile($hs, $fp, $size);
+
+ $hramHash = hash_final($hs, true);
+
+ $hram = ParagonIE_Sodium_Core32_Ed25519::sc_reduce($hramHash);
+
+ $sigAfter = ParagonIE_Sodium_Core32_Ed25519::sc_muladd($hram, $az, $nonce);
+
+ /** @var string $sig */
+ $sig = self::substr($sig, 0, 32) . self::substr($sigAfter, 0, 32);
+
+ try {
+ ParagonIE_Sodium_Compat::memzero($az);
+ } catch (SodiumException $ex) {
+ $az = null;
+ }
+ fclose($fp);
+ return $sig;
+ }
+
+ /**
+ *
+ * Verify a file (rather than a string). Uses less memory than
+ * ParagonIE_Sodium_Compat::crypto_sign_verify_detached(), but
+ * produces the same result. (32-bit)
+ *
+ * @param string $sig Ed25519 signature
+ * @param string $filePath Absolute path to a file on the filesystem
+ * @param string $publicKey Signing public key
+ *
+ * @return bool
+ * @throws SodiumException
+ * @throws Exception
+ */
+ public static function verify_core32($sig, $filePath, $publicKey)
+ {
+ /* Security checks */
+ if (ParagonIE_Sodium_Core32_Ed25519::check_S_lt_L(self::substr($sig, 32, 32))) {
+ throw new SodiumException('S < L - Invalid signature');
+ }
+ if (ParagonIE_Sodium_Core32_Ed25519::small_order($sig)) {
+ throw new SodiumException('Signature is on too small of an order');
+ }
+
+ if ((self::chrToInt($sig[63]) & 224) !== 0) {
+ throw new SodiumException('Invalid signature');
+ }
+ $d = 0;
+ for ($i = 0; $i < 32; ++$i) {
+ $d |= self::chrToInt($publicKey[$i]);
+ }
+ if ($d === 0) {
+ throw new SodiumException('All zero public key');
+ }
+
+ /** @var int|bool $size */
+ $size = filesize($filePath);
+ if (!is_int($size)) {
+ throw new SodiumException('Could not obtain the file size');
+ }
+ /** @var int $size */
+
+ /** @var resource|bool $fp */
+ $fp = fopen($filePath, 'rb');
+ if (!is_resource($fp)) {
+ throw new SodiumException('Could not open input file for reading');
+ }
+ /** @var resource $fp */
+
+ /** @var bool The original value of ParagonIE_Sodium_Compat::$fastMult */
+ $orig = ParagonIE_Sodium_Compat::$fastMult;
+
+ // Set ParagonIE_Sodium_Compat::$fastMult to true to speed up verification.
+ ParagonIE_Sodium_Compat::$fastMult = true;
+
+ /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $A */
+ $A = ParagonIE_Sodium_Core32_Ed25519::ge_frombytes_negate_vartime($publicKey);
+
+ $hs = hash_init('sha512');
+ self::hash_update($hs, self::substr($sig, 0, 32));
+ self::hash_update($hs, self::substr($publicKey, 0, 32));
+ /** @var resource $hs */
+ $hs = self::updateHashWithFile($hs, $fp, $size);
+ /** @var string $hDigest */
+ $hDigest = hash_final($hs, true);
+
+ /** @var string $h */
+ $h = ParagonIE_Sodium_Core32_Ed25519::sc_reduce($hDigest) . self::substr($hDigest, 32);
+
+ /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $R */
+ $R = ParagonIE_Sodium_Core32_Ed25519::ge_double_scalarmult_vartime(
+ $h,
+ $A,
+ self::substr($sig, 32)
+ );
+
+ /** @var string $rcheck */
+ $rcheck = ParagonIE_Sodium_Core32_Ed25519::ge_tobytes($R);
+
+ // Close the file handle
+ fclose($fp);
+
+ // Reset ParagonIE_Sodium_Compat::$fastMult to what it was before.
+ ParagonIE_Sodium_Compat::$fastMult = $orig;
+ return self::verify_32($rcheck, self::substr($sig, 0, 32));
+ }
+
+ /**
+ * Encrypt a file (32-bit)
+ *
+ * @param resource $ifp
+ * @param resource $ofp
+ * @param int $mlen
+ * @param string $nonce
+ * @param string $key
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function secretbox_encrypt_core32($ifp, $ofp, $mlen, $nonce, $key)
+ {
+ $plaintext = fread($ifp, 32);
+ if (!is_string($plaintext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $first32 = self::ftell($ifp);
+
+ /** @var string $subkey */
+ $subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key);
+
+ /** @var string $realNonce */
+ $realNonce = ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
+
+ /** @var string $block0 */
+ $block0 = str_repeat("\x00", 32);
+
+ /** @var int $mlen - Length of the plaintext message */
+ $mlen0 = $mlen;
+ if ($mlen0 > 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES) {
+ $mlen0 = 64 - ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES;
+ }
+ $block0 .= ParagonIE_Sodium_Core32_Util::substr($plaintext, 0, $mlen0);
+
+ /** @var string $block0 */
+ $block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor(
+ $block0,
+ $realNonce,
+ $subkey
+ );
+
+ $state = new ParagonIE_Sodium_Core32_Poly1305_State(
+ ParagonIE_Sodium_Core32_Util::substr(
+ $block0,
+ 0,
+ ParagonIE_Sodium_Crypto::onetimeauth_poly1305_KEYBYTES
+ )
+ );
+
+ // Pre-write 16 blank bytes for the Poly1305 tag
+ $start = self::ftell($ofp);
+ fwrite($ofp, str_repeat("\x00", 16));
+
+ /** @var string $c */
+ $cBlock = ParagonIE_Sodium_Core32_Util::substr(
+ $block0,
+ ParagonIE_Sodium_Crypto::secretbox_xsalsa20poly1305_ZEROBYTES
+ );
+ $state->update($cBlock);
+ fwrite($ofp, $cBlock);
+ $mlen -= 32;
+
+ /** @var int $iter */
+ $iter = 1;
+
+ /** @var int $incr */
+ $incr = self::BUFFER_SIZE >> 6;
+
+ /*
+ * Set the cursor to the end of the first half-block. All future bytes will
+ * generated from salsa20_xor_ic, starting from 1 (second block).
+ */
+ fseek($ifp, $first32, SEEK_SET);
+
+ while ($mlen > 0) {
+ $blockSize = $mlen > self::BUFFER_SIZE
+ ? self::BUFFER_SIZE
+ : $mlen;
+ $plaintext = fread($ifp, $blockSize);
+ if (!is_string($plaintext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $cBlock = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic(
+ $plaintext,
+ $realNonce,
+ $iter,
+ $subkey
+ );
+ fwrite($ofp, $cBlock, $blockSize);
+ $state->update($cBlock);
+
+ $mlen -= $blockSize;
+ $iter += $incr;
+ }
+ try {
+ ParagonIE_Sodium_Compat::memzero($block0);
+ ParagonIE_Sodium_Compat::memzero($subkey);
+ } catch (SodiumException $ex) {
+ $block0 = null;
+ $subkey = null;
+ }
+ $end = self::ftell($ofp);
+
+ /*
+ * Write the Poly1305 authentication tag that provides integrity
+ * over the ciphertext (encrypt-then-MAC)
+ */
+ fseek($ofp, $start, SEEK_SET);
+ fwrite($ofp, $state->finish(), ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_MACBYTES);
+ fseek($ofp, $end, SEEK_SET);
+ unset($state);
+
+ return true;
+ }
+
+ /**
+ * Decrypt a file (32-bit)
+ *
+ * @param resource $ifp
+ * @param resource $ofp
+ * @param int $mlen
+ * @param string $nonce
+ * @param string $key
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function secretbox_decrypt_core32($ifp, $ofp, $mlen, $nonce, $key)
+ {
+ $tag = fread($ifp, 16);
+ if (!is_string($tag)) {
+ throw new SodiumException('Could not read input file');
+ }
+
+ /** @var string $subkey */
+ $subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key);
+
+ /** @var string $realNonce */
+ $realNonce = ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8);
+
+ /** @var string $block0 */
+ $block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20(
+ 64,
+ ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8),
+ $subkey
+ );
+
+ /* Verify the Poly1305 MAC -before- attempting to decrypt! */
+ $state = new ParagonIE_Sodium_Core32_Poly1305_State(self::substr($block0, 0, 32));
+ if (!self::onetimeauth_verify_core32($state, $ifp, $tag, $mlen)) {
+ throw new SodiumException('Invalid MAC');
+ }
+
+ /*
+ * Set the cursor to the end of the first half-block. All future bytes will
+ * generated from salsa20_xor_ic, starting from 1 (second block).
+ */
+ $first32 = fread($ifp, 32);
+ if (!is_string($first32)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $first32len = self::strlen($first32);
+ fwrite(
+ $ofp,
+ self::xorStrings(
+ self::substr($block0, 32, $first32len),
+ self::substr($first32, 0, $first32len)
+ )
+ );
+ $mlen -= 32;
+
+ /** @var int $iter */
+ $iter = 1;
+
+ /** @var int $incr */
+ $incr = self::BUFFER_SIZE >> 6;
+
+ /* Decrypts ciphertext, writes to output file. */
+ while ($mlen > 0) {
+ $blockSize = $mlen > self::BUFFER_SIZE
+ ? self::BUFFER_SIZE
+ : $mlen;
+ $ciphertext = fread($ifp, $blockSize);
+ if (!is_string($ciphertext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $pBlock = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic(
+ $ciphertext,
+ $realNonce,
+ $iter,
+ $subkey
+ );
+ fwrite($ofp, $pBlock, $blockSize);
+ $mlen -= $blockSize;
+ $iter += $incr;
+ }
+ return true;
+ }
+
+ /**
+ * One-time message authentication for 32-bit systems
+ *
+ * @param ParagonIE_Sodium_Core32_Poly1305_State $state
+ * @param resource $ifp
+ * @param string $tag
+ * @param int $mlen
+ * @return bool
+ * @throws SodiumException
+ * @throws TypeError
+ */
+ protected static function onetimeauth_verify_core32(
+ ParagonIE_Sodium_Core32_Poly1305_State $state,
+ $ifp,
+ $tag = '',
+ $mlen = 0
+ ) {
+ /** @var int $pos */
+ $pos = self::ftell($ifp);
+
+ while ($mlen > 0) {
+ $blockSize = $mlen > self::BUFFER_SIZE
+ ? self::BUFFER_SIZE
+ : $mlen;
+ $ciphertext = fread($ifp, $blockSize);
+ if (!is_string($ciphertext)) {
+ throw new SodiumException('Could not read input file');
+ }
+ $state->update($ciphertext);
+ $mlen -= $blockSize;
+ }
+ $res = ParagonIE_Sodium_Core32_Util::verify_16($tag, $state->finish());
+
+ fseek($ifp, $pos, SEEK_SET);
+ return $res;
+ }
+
+ /**
+ * @param resource $resource
+ * @return int
+ * @throws SodiumException
+ */
+ private static function ftell($resource)
+ {
+ $return = ftell($resource);
+ if (!is_int($return)) {
+ throw new SodiumException('ftell() returned false');
+ }
+ return (int) $return;
+ }
+}