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| author | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
|---|---|---|
| committer | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
| commit | 19985dbb8c0aa66dc4bf7905abc1148de909097d (patch) | |
| tree | 2cd5a5d20d7e80fc2a51adf60d838d8a2c40999e /vendor/paragonie/sodium_compat | |
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Diffstat (limited to 'vendor/paragonie/sodium_compat')
113 files changed, 35949 insertions, 0 deletions
diff --git a/vendor/paragonie/sodium_compat/.github/workflows/ci.yml b/vendor/paragonie/sodium_compat/.github/workflows/ci.yml new file mode 100644 index 0000000..f570b84 --- /dev/null +++ b/vendor/paragonie/sodium_compat/.github/workflows/ci.yml @@ -0,0 +1,96 @@ +name: CI
+
+on: [push]
+
+jobs:
+ old:
+ name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+ runs-on: ${{ matrix.operating-system }}
+ strategy:
+ matrix:
+ operating-system: ['ubuntu-16.04']
+ php-versions: ['5.3', '5.4', '5.5', '5.6', '7.0']
+ phpunit-versions: ['7.5.20']
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v2
+
+ - name: Setup PHP
+ uses: shivammathur/setup-php@v2
+ with:
+ php-version: ${{ matrix.php-versions }}
+ extensions: mbstring, intl
+ ini-values: post_max_size=256M, max_execution_time=180
+ tools: psalm, phpunit:${{ matrix.phpunit-versions }}
+
+ - name: Install dependencies
+ run: composer self-update --1; composer install
+
+ - name: PHPUnit tests
+ uses: php-actions/phpunit@v2
+ with:
+ memory_limit: 256M
+
+ moderate:
+ name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+ runs-on: ${{ matrix.operating-system }}
+ strategy:
+ matrix:
+ operating-system: ['ubuntu-latest']
+ php-versions: ['7.1', '7.2', '7.3']
+ phpunit-versions: ['latest']
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v2
+
+ - name: Setup PHP
+ uses: shivammathur/setup-php@v2
+ with:
+ php-version: ${{ matrix.php-versions }}
+ extensions: mbstring, intl, sodium
+ ini-values: post_max_size=256M, max_execution_time=180
+ tools: psalm, phpunit:${{ matrix.phpunit-versions }}
+
+ - name: Install dependencies
+ run: composer install
+
+ - name: PHPUnit tests
+ uses: php-actions/phpunit@v2
+ timeout-minutes: 30
+ with:
+ memory_limit: 256M
+
+ modern:
+ name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
+ runs-on: ${{ matrix.operating-system }}
+ strategy:
+ matrix:
+ operating-system: ['ubuntu-latest']
+ php-versions: ['7.4', '8.0']
+ phpunit-versions: ['latest']
+ steps:
+ - name: Checkout
+ uses: actions/checkout@v2
+
+ - name: Setup PHP
+ uses: shivammathur/setup-php@v2
+ with:
+ php-version: ${{ matrix.php-versions }}
+ extensions: mbstring, intl, sodium
+ ini-values: post_max_size=256M, max_execution_time=180
+ tools: psalm, phpunit:${{ matrix.phpunit-versions }}
+
+ - name: Install dependencies
+ run: composer install
+
+ - name: PHPUnit tests
+ uses: php-actions/phpunit@v2
+ timeout-minutes: 30
+ with:
+ memory_limit: 256M
+
+ - name: Install Psalm
+ run: composer require --dev vimeo/psalm:^4; cp psalm-above-3.xml psalm.xml
+
+ - name: Static Analysis
+ run: vendor/bin/psalm
diff --git a/vendor/paragonie/sodium_compat/.gitignore b/vendor/paragonie/sodium_compat/.gitignore new file mode 100644 index 0000000..0df5a6d --- /dev/null +++ b/vendor/paragonie/sodium_compat/.gitignore @@ -0,0 +1,9 @@ +/.idea/ +/.php_cs.cache +/.phpunit.result.cache +/box/ +/dist/sodium-compat.phar +/dist/sodium-compat.phar.sig +/composer.lock +/vendor/ +/psalm.xml diff --git a/vendor/paragonie/sodium_compat/LICENSE b/vendor/paragonie/sodium_compat/LICENSE new file mode 100644 index 0000000..184e442 --- /dev/null +++ b/vendor/paragonie/sodium_compat/LICENSE @@ -0,0 +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.
diff --git a/vendor/paragonie/sodium_compat/README.md b/vendor/paragonie/sodium_compat/README.md new file mode 100644 index 0000000..a50508c --- /dev/null +++ b/vendor/paragonie/sodium_compat/README.md @@ -0,0 +1,347 @@ +# Sodium Compat
+
+[](https://github.com/paragonie/sodium_compat/actions)
+[](https://ci.appveyor.com/project/paragonie-scott/sodium-compat)
+[](https://packagist.org/packages/paragonie/sodium_compat)
+[](https://packagist.org/packages/paragonie/sodium_compat)
+[](https://packagist.org/packages/paragonie/sodium_compat)
+[](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).
diff --git a/vendor/paragonie/sodium_compat/appveyor.yml b/vendor/paragonie/sodium_compat/appveyor.yml new file mode 100644 index 0000000..9621e9a --- /dev/null +++ b/vendor/paragonie/sodium_compat/appveyor.yml @@ -0,0 +1,27 @@ +build: false +shallow_clone: false +platform: + - x86 + - x64 +clone_folder: C:\projects\sodium_compat +image: Visual Studio 2017 + +install: + - cinst -y OpenSSL.Light + - SET PATH=C:\Program Files\OpenSSL;%PATH% + - sc config wuauserv start= auto + - net start wuauserv + - cinst -y php --version 5.6.30 + - cd c:\tools\php56 + - copy php.ini-production php.ini + - echo date.timezone="UTC" >> php.ini + - echo extension_dir=ext >> php.ini + - echo extension=php_openssl.dll >> php.ini + - cd C:\projects\sodium_compat + - SET PATH=C:\tools\php56;%PATH% + - php.exe -r "readfile('http://getcomposer.org/installer');" | php.exe + - php.exe composer.phar install --prefer-source --no-interaction + +test_script: + - cd C:\projects\sodium_compat + - vendor\bin\phpunit.bat tests/Windows32Test.php diff --git a/vendor/paragonie/sodium_compat/autoload-fast.php b/vendor/paragonie/sodium_compat/autoload-fast.php new file mode 100644 index 0000000..08724d1 --- /dev/null +++ b/vendor/paragonie/sodium_compat/autoload-fast.php @@ -0,0 +1,4 @@ +<?php + +require_once 'autoload.php'; +ParagonIE_Sodium_Compat::$fastMult = true; diff --git a/vendor/paragonie/sodium_compat/autoload-pedantic.php b/vendor/paragonie/sodium_compat/autoload-pedantic.php new file mode 100644 index 0000000..e4646ca --- /dev/null +++ b/vendor/paragonie/sodium_compat/autoload-pedantic.php @@ -0,0 +1,6 @@ +<?php + +require_once 'autoload.php'; +define('DO_PEDANTIC_TEST', true); + +ParagonIE_Sodium_Compat::$fastMult = true; diff --git a/vendor/paragonie/sodium_compat/autoload-php7.php b/vendor/paragonie/sodium_compat/autoload-php7.php new file mode 100644 index 0000000..4824860 --- /dev/null +++ b/vendor/paragonie/sodium_compat/autoload-php7.php @@ -0,0 +1,31 @@ +<?php +/* + This file should only ever be loaded on PHP 7+ + */ +if (PHP_VERSION_ID < 70000) { + return; +} + +spl_autoload_register(function ($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; +}); diff --git a/vendor/paragonie/sodium_compat/autoload-phpunit.php b/vendor/paragonie/sodium_compat/autoload-phpunit.php new file mode 100644 index 0000000..05b003a --- /dev/null +++ b/vendor/paragonie/sodium_compat/autoload-phpunit.php @@ -0,0 +1,8 @@ +<?php
+
+require_once (dirname(__FILE__) . '/vendor/autoload.php');
+
+if (PHP_VERSION_ID >= 50300) {
+ require_once (dirname(__FILE__) . '/tests/phpunit-shim.php');
+}
+require_once (dirname(__FILE__) . '/autoload.php');
diff --git a/vendor/paragonie/sodium_compat/autoload.php b/vendor/paragonie/sodium_compat/autoload.php new file mode 100644 index 0000000..c5c23b4 --- /dev/null +++ b/vendor/paragonie/sodium_compat/autoload.php @@ -0,0 +1,72 @@ +<?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 $file;
+ return true;
+ }
+ return false;
+ }
+
+ // Now that we have an autoloader, let's register it!
+ spl_autoload_register('sodiumCompatAutoloader');
+ }
+} else {
+ require_once dirname(__FILE__) . '/autoload-php7.php';
+}
+
+/* Explicitly, always load the Compat class: */
+require_once dirname(__FILE__) . '/src/Compat.php';
+
+if (!class_exists('SodiumException', false)) {
+ require_once dirname(__FILE__) . '/src/SodiumException.php';
+}
+if (PHP_VERSION_ID >= 50300) {
+ // Namespaces didn't exist before 5.3.0, so don't even try to use this
+ // unless PHP >= 5.3.0
+ require_once dirname(__FILE__) . '/lib/namespaced.php';
+ require_once dirname(__FILE__) . '/lib/sodium_compat.php';
+} else {
+ require_once dirname(__FILE__) . '/src/PHP52/SplFixedArray.php';
+}
+if (PHP_VERSION_ID < 70200 || !extension_loaded('sodium')) {
+ if (PHP_VERSION_ID >= 50300 && !defined('SODIUM_CRYPTO_SCALARMULT_BYTES')) {
+ require_once dirname(__FILE__) . '/lib/php72compat_const.php';
+ }
+ if (PHP_VERSION_ID >= 70000) {
+ assert(class_exists('ParagonIE_Sodium_Compat'), 'Possible filesystem/autoloader bug?');
+ } else {
+ assert(class_exists('ParagonIE_Sodium_Compat'));
+ }
+ require_once(dirname(__FILE__) . '/lib/php72compat.php');
+} elseif (!function_exists('sodium_crypto_stream_xchacha20_xor')) {
+ // Older versions of {PHP, ext/sodium} will not define these
+ require_once(dirname(__FILE__) . '/lib/php72compat.php');
+}
+require_once(dirname(__FILE__) . '/lib/ristretto255.php');
diff --git a/vendor/paragonie/sodium_compat/build-phar.sh b/vendor/paragonie/sodium_compat/build-phar.sh new file mode 100644 index 0000000..380eee6 --- /dev/null +++ b/vendor/paragonie/sodium_compat/build-phar.sh @@ -0,0 +1,8 @@ +#!/usr/bin/env bash + +curl -LSs https://box-project.github.io/box2/installer.php | php +mkdir ~/box +mv box.phar ~/box/box +PATH=$PATH:~/box/ make -C dist/ build-phar +# PATH=$PATH:~/box/ make -C dist/ sign-phar + diff --git a/vendor/paragonie/sodium_compat/composer-php52.json b/vendor/paragonie/sodium_compat/composer-php52.json new file mode 100644 index 0000000..9547d0d --- /dev/null +++ b/vendor/paragonie/sodium_compat/composer-php52.json @@ -0,0 +1,87 @@ +{ + "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"] + }, + "repositories": [ + { + "type": "git", + "url": "https://github.com/garex/phpunit" + }, + { + "type": "git", + "url": "https://github.com/garex/phpunit-mock-objects" + } + ], + "require": { + "php": "^5.2.4|^5.3|^5.4|^5.5|^5.6|^7|^8", + "xrstf/composer-php52": "1.*", + "paragonie/random_compat": ">=1" + }, + "minimum-stability": "dev", + "require-dev": { + "phpunit/phpunit-php52": "dev-3.6.12-php52", + "phpunit/phpunit-mock-objects-php52": "dev-1.1.0-php52" + }, + "scripts": { + "post-install-cmd": [ + "xrstf\\Composer52\\Generator::onPostInstallCmd" + ], + "post-update-cmd": [ + "xrstf\\Composer52\\Generator::onPostInstallCmd" + ], + "post-autoload-dump": [ + "xrstf\\Composer52\\Generator::onPostInstallCmd" + ] + }, + "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/composer.json b/vendor/paragonie/sodium_compat/composer.json new file mode 100644 index 0000000..09b9d84 --- /dev/null +++ b/vendor/paragonie/sodium_compat/composer.json @@ -0,0 +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."
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/dist/Makefile b/vendor/paragonie/sodium_compat/dist/Makefile new file mode 100644 index 0000000..f30a25d --- /dev/null +++ b/vendor/paragonie/sodium_compat/dist/Makefile @@ -0,0 +1,39 @@ +# This builds sodium-compat.phar. To run this Makefile, `box` and `composer` +# must be installed and in your $PATH. Run it from inside the dist/ directory. + +box := $(shell which box) +composer := "composer" +gitcommit := $(shell git rev-parse HEAD) + +.PHONY: all +all: build-phar + +.PHONY: sign-phar +sign-phar: + gpg -u 7F52D5C61D1255C731362E826B97A1C2826404DA --armor --output sodium-compat.phar.sig --detach-sig sodium-compat.phar + +# ensure we run in clean tree. export git tree and run there. +.PHONY: build-phar +build-phar: + @echo "Creating .phar from revision $(shell git rev-parse HEAD)." + rm -rf worktree + install -d worktree + (cd $(CURDIR)/..; git archive HEAD) | tar -x -C worktree + $(MAKE) -f $(CURDIR)/Makefile -C worktree sodium-compat.phar + mv worktree/*.phar . + rm -rf worktree + +.PHONY: clean +clean: + rm -vf sodium-compat.phar sodium-compat.phar.sig + +# Inside workdir/: + +sodium-compat.phar: dist/box.json composer.lock + cp dist/box.json . + php -d phar.readonly=0 $(box) build -c box.json -v + +composer.lock: + $(composer) config autoloader-suffix $(gitcommit) + $(composer) install --no-dev + diff --git a/vendor/paragonie/sodium_compat/dist/box.json b/vendor/paragonie/sodium_compat/dist/box.json new file mode 100644 index 0000000..5f7827e --- /dev/null +++ b/vendor/paragonie/sodium_compat/dist/box.json @@ -0,0 +1,32 @@ +{ + "chmod": "0755", + "finder": [ + { + "in": "", + "name": "autoload.php" + }, + { + "in": "src", + "name": "*.php" + }, + { + "in": "lib", + "name": "*.php" + }, + { + "in": "vendor/composer", + "name": "*.php" + }, + { + "in": "vendor/paragonie", + "name": "*.php" + } + ], + "compactors": [ + "Herrera\\Box\\Compactor\\Php" + ], + "main": "vendor/autoload.php", + "output": "sodium-compat.phar", + "shebang": false, + "stub": true +} diff --git a/vendor/paragonie/sodium_compat/lib/constants.php b/vendor/paragonie/sodium_compat/lib/constants.php new file mode 100644 index 0000000..b6a120e --- /dev/null +++ b/vendor/paragonie/sodium_compat/lib/constants.php @@ -0,0 +1,52 @@ +<?php +namespace Sodium; + +require_once dirname(dirname(__FILE__)) . '/autoload.php'; + +use ParagonIE_Sodium_Compat; + +const CRYPTO_AEAD_AES256GCM_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_AES256GCM_KEYBYTES; +const CRYPTO_AEAD_AES256GCM_NSECBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_AES256GCM_NSECBYTES; +const CRYPTO_AEAD_AES256GCM_NPUBBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_AES256GCM_NPUBBYTES; +const CRYPTO_AEAD_AES256GCM_ABYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_AES256GCM_ABYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_KEYBYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_NSECBYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_NPUBBYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_ABYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_ABYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_IETF_KEYBYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NSECBYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_IETF_NPUBBYTES; +const CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES = ParagonIE_Sodium_Compat::CRYPTO_AEAD_CHACHA20POLY1305_IETF_ABYTES; +const CRYPTO_AUTH_BYTES = ParagonIE_Sodium_Compat::CRYPTO_AUTH_BYTES; +const CRYPTO_AUTH_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_AUTH_KEYBYTES; +const CRYPTO_BOX_SEALBYTES = ParagonIE_Sodium_Compat::CRYPTO_BOX_SEALBYTES; +const CRYPTO_BOX_SECRETKEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_BOX_SECRETKEYBYTES; +const CRYPTO_BOX_PUBLICKEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_BOX_PUBLICKEYBYTES; +const CRYPTO_BOX_KEYPAIRBYTES = ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES; +const CRYPTO_BOX_MACBYTES = ParagonIE_Sodium_Compat::CRYPTO_BOX_MACBYTES; +const CRYPTO_BOX_NONCEBYTES = ParagonIE_Sodium_Compat::CRYPTO_BOX_NONCEBYTES; +const CRYPTO_BOX_SEEDBYTES = ParagonIE_Sodium_Compat::CRYPTO_BOX_SEEDBYTES; +const CRYPTO_KX_BYTES = ParagonIE_Sodium_Compat::CRYPTO_KX_BYTES; +const CRYPTO_KX_SEEDBYTES = ParagonIE_Sodium_Compat::CRYPTO_KX_SEEDBYTES; +const CRYPTO_KX_PUBLICKEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_KX_PUBLICKEYBYTES; +const CRYPTO_KX_SECRETKEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_KX_SECRETKEYBYTES; +const CRYPTO_GENERICHASH_BYTES = ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_BYTES; +const CRYPTO_GENERICHASH_BYTES_MIN = ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_BYTES_MIN; +const CRYPTO_GENERICHASH_BYTES_MAX = ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_BYTES_MAX; +const CRYPTO_GENERICHASH_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_KEYBYTES; +const CRYPTO_GENERICHASH_KEYBYTES_MIN = ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_KEYBYTES_MIN; +const CRYPTO_GENERICHASH_KEYBYTES_MAX = ParagonIE_Sodium_Compat::CRYPTO_GENERICHASH_KEYBYTES_MAX; +const CRYPTO_SCALARMULT_BYTES = ParagonIE_Sodium_Compat::CRYPTO_SCALARMULT_BYTES; +const CRYPTO_SCALARMULT_SCALARBYTES = ParagonIE_Sodium_Compat::CRYPTO_SCALARMULT_SCALARBYTES; +const CRYPTO_SHORTHASH_BYTES = ParagonIE_Sodium_Compat::CRYPTO_SHORTHASH_BYTES; +const CRYPTO_SHORTHASH_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_SHORTHASH_KEYBYTES; +const CRYPTO_SECRETBOX_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_KEYBYTES; +const CRYPTO_SECRETBOX_MACBYTES = ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_MACBYTES; +const CRYPTO_SECRETBOX_NONCEBYTES = ParagonIE_Sodium_Compat::CRYPTO_SECRETBOX_NONCEBYTES; +const CRYPTO_SIGN_BYTES = ParagonIE_Sodium_Compat::CRYPTO_SIGN_BYTES; +const CRYPTO_SIGN_SEEDBYTES = ParagonIE_Sodium_Compat::CRYPTO_SIGN_SEEDBYTES; +const CRYPTO_SIGN_PUBLICKEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_SIGN_PUBLICKEYBYTES; +const CRYPTO_SIGN_SECRETKEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_SIGN_SECRETKEYBYTES; +const CRYPTO_SIGN_KEYPAIRBYTES = ParagonIE_Sodium_Compat::CRYPTO_SIGN_KEYPAIRBYTES; +const CRYPTO_STREAM_KEYBYTES = ParagonIE_Sodium_Compat::CRYPTO_STREAM_KEYBYTES; +const CRYPTO_STREAM_NONCEBYTES = ParagonIE_Sodium_Compat::CRYPTO_STREAM_NONCEBYTES; diff --git a/vendor/paragonie/sodium_compat/lib/namespaced.php b/vendor/paragonie/sodium_compat/lib/namespaced.php new file mode 100644 index 0000000..77551fd --- /dev/null +++ b/vendor/paragonie/sodium_compat/lib/namespaced.php @@ -0,0 +1,48 @@ +<?php + +require_once dirname(dirname(__FILE__)) . '/autoload.php'; + +if (PHP_VERSION_ID < 50300) { + return; +} + +/* + * This file is just for convenience, to allow developers to reduce verbosity when + * they add this project to their libraries. + * + * Replace this: + * + * $x = ParagonIE_Sodium_Compat::crypto_aead_xchacha20poly1305_encrypt(...$args); + * + * with this: + * + * use ParagonIE\Sodium\Compat; + * + * $x = Compat::crypto_aead_xchacha20poly1305_encrypt(...$args); + */ +spl_autoload_register(function ($class) { + if ($class[0] === '\\') { + $class = substr($class, 1); + } + $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(dirname(__FILE__)) . '/namespaced/' . str_replace('\\', '/', $relative_class) . '.php'; + // if the file exists, require it + if (file_exists($file)) { + require_once $file; + return true; + } + return false; +}); diff --git a/vendor/paragonie/sodium_compat/lib/php72compat.php b/vendor/paragonie/sodium_compat/lib/php72compat.php new file mode 100644 index 0000000..c2b065f --- /dev/null +++ b/vendor/paragonie/sodium_compat/lib/php72compat.php @@ -0,0 +1,1369 @@ +<?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();
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/lib/php72compat_const.php b/vendor/paragonie/sodium_compat/lib/php72compat_const.php new file mode 100644 index 0000000..0a076ca --- /dev/null +++ b/vendor/paragonie/sodium_compat/lib/php72compat_const.php @@ -0,0 +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;
diff --git a/vendor/paragonie/sodium_compat/lib/ristretto255.php b/vendor/paragonie/sodium_compat/lib/ristretto255.php new file mode 100644 index 0000000..a7522ea --- /dev/null +++ b/vendor/paragonie/sodium_compat/lib/ristretto255.php @@ -0,0 +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);
+ }
+}
\ 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 new file mode 100644 index 0000000..80495be --- /dev/null +++ b/vendor/paragonie/sodium_compat/lib/sodium_compat.php @@ -0,0 +1,827 @@ +<?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';
+}
diff --git a/vendor/paragonie/sodium_compat/lib/stream-xchacha20.php b/vendor/paragonie/sodium_compat/lib/stream-xchacha20.php new file mode 100644 index 0000000..44a6b5b --- /dev/null +++ b/vendor/paragonie/sodium_compat/lib/stream-xchacha20.php @@ -0,0 +1,43 @@ +<?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);
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/namespaced/Compat.php b/vendor/paragonie/sodium_compat/namespaced/Compat.php new file mode 100644 index 0000000..c40f7fb --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Compat.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium; + +class Compat extends \ParagonIE_Sodium_Compat +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/BLAKE2b.php b/vendor/paragonie/sodium_compat/namespaced/Core/BLAKE2b.php new file mode 100644 index 0000000..f152c5a --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/BLAKE2b.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class BLAKE2b extends \ParagonIE_Sodium_Core_BLAKE2b +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20.php b/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20.php new file mode 100644 index 0000000..08936b5 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class ChaCha20 extends \ParagonIE_Sodium_Core_ChaCha20 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20/Ctx.php b/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20/Ctx.php new file mode 100644 index 0000000..ea07a26 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20/Ctx.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\ChaCha20; + +class Ctx extends \ParagonIE_Sodium_Core_ChaCha20_Ctx +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20/IetfCtx.php b/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20/IetfCtx.php new file mode 100644 index 0000000..c0b2de8 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/ChaCha20/IetfCtx.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\ChaCha20; + +class IetfCtx extends \ParagonIE_Sodium_Core_ChaCha20_IetfCtx +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519.php new file mode 100644 index 0000000..d4a7ce1 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class Curve25519 extends \ParagonIE_Sodium_Core_Curve25519 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Fe.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Fe.php new file mode 100644 index 0000000..7129065 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Fe.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Curve25519; + +class Fe extends \ParagonIE_Sodium_Core_Curve25519_Fe +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/Cached.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/Cached.php new file mode 100644 index 0000000..269d6a7 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/Cached.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Curve25519\Ge; + +class Cached extends \ParagonIE_Sodium_Core_Curve25519_Ge_Cached +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P1p1.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P1p1.php new file mode 100644 index 0000000..0b70046 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P1p1.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Curve25519\Ge; + +class P1p1 extends \ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P2.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P2.php new file mode 100644 index 0000000..e0c76c6 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P2.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Curve25519\Ge; + +class P2 extends \ParagonIE_Sodium_Core_Curve25519_Ge_P2 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P3.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P3.php new file mode 100644 index 0000000..1a9cad7 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/P3.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Curve25519\Ge; + +class P3 extends \ParagonIE_Sodium_Core_Curve25519_Ge_P3 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/Precomp.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/Precomp.php new file mode 100644 index 0000000..07e509a --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/Ge/Precomp.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Curve25519\Ge; + +class Precomp extends \ParagonIE_Sodium_Core_Curve25519_Ge_Precomp +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/H.php b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/H.php new file mode 100644 index 0000000..5ba7fd8 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Curve25519/H.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Curve25519; + +class H extends \ParagonIE_Sodium_Core_Curve25519_H +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Ed25519.php b/vendor/paragonie/sodium_compat/namespaced/Core/Ed25519.php new file mode 100644 index 0000000..1393988 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Ed25519.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class Ed25519 extends \ParagonIE_Sodium_Core_Ed25519 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/HChaCha20.php b/vendor/paragonie/sodium_compat/namespaced/Core/HChaCha20.php new file mode 100644 index 0000000..d96dc14 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/HChaCha20.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class HChaCha20 extends \ParagonIE_Sodium_Core_HChaCha20 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/HSalsa20.php b/vendor/paragonie/sodium_compat/namespaced/Core/HSalsa20.php new file mode 100644 index 0000000..e526b99 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/HSalsa20.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class HSalsa20 extends \ParagonIE_Sodium_Core_HSalsa20 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Poly1305.php b/vendor/paragonie/sodium_compat/namespaced/Core/Poly1305.php new file mode 100644 index 0000000..acfc6d0 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Poly1305.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class Poly1305 extends \ParagonIE_Sodium_Core_Poly1305 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Poly1305/State.php b/vendor/paragonie/sodium_compat/namespaced/Core/Poly1305/State.php new file mode 100644 index 0000000..a0648e7 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Poly1305/State.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core\Poly1305; + +class State extends \ParagonIE_Sodium_Core_Poly1305_State +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Salsa20.php b/vendor/paragonie/sodium_compat/namespaced/Core/Salsa20.php new file mode 100644 index 0000000..a611239 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Salsa20.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class Salsa20 extends \ParagonIE_Sodium_Core_Salsa20 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/SipHash.php b/vendor/paragonie/sodium_compat/namespaced/Core/SipHash.php new file mode 100644 index 0000000..4570904 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/SipHash.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class SipHash extends \ParagonIE_Sodium_Core_SipHash +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Util.php b/vendor/paragonie/sodium_compat/namespaced/Core/Util.php new file mode 100644 index 0000000..6086a36 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Util.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class Util extends \ParagonIE_Sodium_Core_Util +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/X25519.php b/vendor/paragonie/sodium_compat/namespaced/Core/X25519.php new file mode 100644 index 0000000..f17a2cf --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/X25519.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class X25519 extends \ParagonIE_Sodium_Core_X25519 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/XChaCha20.php b/vendor/paragonie/sodium_compat/namespaced/Core/XChaCha20.php new file mode 100644 index 0000000..51b5535 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/XChaCha20.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class XChaCha20 extends \ParagonIE_Sodium_Core_XChaCha20 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Core/Xsalsa20.php b/vendor/paragonie/sodium_compat/namespaced/Core/Xsalsa20.php new file mode 100644 index 0000000..5297e49 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Core/Xsalsa20.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium\Core; + +class Xsalsa20 extends \ParagonIE_Sodium_Core_XSalsa20 +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/Crypto.php b/vendor/paragonie/sodium_compat/namespaced/Crypto.php new file mode 100644 index 0000000..78f092d --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/Crypto.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium; + +class Crypto extends \ParagonIE_Sodium_Crypto +{ + +} diff --git a/vendor/paragonie/sodium_compat/namespaced/File.php b/vendor/paragonie/sodium_compat/namespaced/File.php new file mode 100644 index 0000000..6b40459 --- /dev/null +++ b/vendor/paragonie/sodium_compat/namespaced/File.php @@ -0,0 +1,7 @@ +<?php +namespace ParagonIE\Sodium; + +class File extends \ParagonIE_Sodium_File +{ + +} diff --git a/vendor/paragonie/sodium_compat/phpunit.xml.dist b/vendor/paragonie/sodium_compat/phpunit.xml.dist new file mode 100644 index 0000000..a705527 --- /dev/null +++ b/vendor/paragonie/sodium_compat/phpunit.xml.dist @@ -0,0 +1,16 @@ +<?xml version="1.0" encoding="UTF-8"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="true" backupStaticAttributes="false" bootstrap="autoload-phpunit.php" colors="true" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" processIsolation="false" stopOnError="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
+ <coverage processUncoveredFiles="true">
+ <include>
+ <directory suffix=".php">./src</directory>
+ </include>
+ </coverage>
+ <testsuites>
+ <testsuite name="Unit Tests">
+ <directory suffix="Test.php">./tests/unit</directory>
+ </testsuite>
+ <testsuite name="Libsodium Compatibility Tests">
+ <directory suffix="Test.php">./tests/compat</directory>
+ </testsuite>
+ </testsuites>
+</phpunit>
diff --git a/vendor/paragonie/sodium_compat/psalm-above-3.xml b/vendor/paragonie/sodium_compat/psalm-above-3.xml new file mode 100644 index 0000000..63b8c80 --- /dev/null +++ b/vendor/paragonie/sodium_compat/psalm-above-3.xml @@ -0,0 +1,57 @@ +<?xml version="1.0"?>
+<psalm
+ useDocblockTypes="true"
+ totallyTyped="true"
+>
+ <projectFiles>
+ <directory name="src" />
+ </projectFiles>
+ <issueHandlers>
+ <InvalidFunctionCall errorLevel="suppress" />
+ <!--
+ Previous issue type is suppressed because we have to use a string
+ as a function name for PHP 5.2 compatibility. When testing, be sure
+ to change this to "info".
+ -->
+
+ <UndefinedFunction errorLevel="info" />
+ <!--
+ Inconsistently erroneous.
+ -->
+
+ <DuplicateClass errorLevel="info" />
+ <!--
+ Psalm isn't correctly identifying the guard conditions that return
+ early if a class already exists.
+ -->
+ <RedundantConditionGivenDocblockType errorLevel="suppress" />
+
+ <TooFewArguments errorLevel="info" />
+
+ <DocblockTypeContradiction errorLevel="suppress" />
+ <RedundantCondition errorLevel="info" />
+ <!--
+ Redundancy is good for PHP <7
+ -->
+
+ <TypeDoesNotContainType errorLevel="info" />
+ <!--
+ This mostly fails on `PHP_INT_SIZE === 4`
+ -->
+
+ <InternalMethod errorLevel="suppress" />
+ <!--
+ We mark methods as internal.
+ -->
+ <PossiblyNullArgument errorLevel="suppress" />
+ <!--
+ Not interesting
+ -->
+
+ <RedundantCast errorLevel="info" />
+ <UnnecessaryVarAnnotation errorLevel="suppress" />
+ <UnusedVariable errorLevel="info" />
+ <UnusedFunctionCall errorLevel="info" />
+
+ </issueHandlers>
+</psalm>
diff --git a/vendor/paragonie/sodium_compat/psalm-below-3.xml b/vendor/paragonie/sodium_compat/psalm-below-3.xml new file mode 100644 index 0000000..0da3cd9 --- /dev/null +++ b/vendor/paragonie/sodium_compat/psalm-below-3.xml @@ -0,0 +1,43 @@ +<?xml version="1.0"?> +<psalm + useDocblockTypes="true" + totallyTyped="true" +> + <projectFiles> + <directory name="src" /> + </projectFiles> + <issueHandlers> + <InvalidFunctionCall errorLevel="suppress" /> + <!-- + Previous issue type is suppressed because we have to use a string + as a function name for PHP 5.2 compatibility. When testing, be sure + to change this to "info". + --> + + <UndefinedFunction errorLevel="info" /> + <!-- + Inconsistently erroneous. + --> + + <DuplicateClass errorLevel="info" /> + <!-- + Psalm isn't correctly identifying the guard conditions that return + early if a class already exists. + --> + <RedundantConditionGivenDocblockType errorLevel="suppress" /> + + <TooFewArguments errorLevel="info" /> + + <DocblockTypeContradiction errorLevel="info" /> + <RedundantCondition errorLevel="info" /> + <!-- + Redundancy is good for PHP <7 + --> + + <TypeDoesNotContainType errorLevel="info" /> + <!-- + This mostly fails on `PHP_INT_SIZE === 4` + --> + + </issueHandlers> +</psalm> diff --git a/vendor/paragonie/sodium_compat/src/Compat.php b/vendor/paragonie/sodium_compat/src/Compat.php new file mode 100644 index 0000000..286d37e --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Compat.php @@ -0,0 +1,3947 @@ +<?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;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php b/vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php new file mode 100644 index 0000000..99bae98 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/BLAKE2b.php @@ -0,0 +1,790 @@ +<?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;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Base64/Common.php b/vendor/paragonie/sodium_compat/src/Core/Base64/Common.php new file mode 100644 index 0000000..94b2e8f --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Base64/Common.php @@ -0,0 +1,213 @@ +<?php + +/** + * Class ParagonIE_Sodium_Core_Base64 + * + * Copyright (c) 2016 - 2018 Paragon Initiative Enterprises. + * Copyright (c) 2014 Steve "Sc00bz" Thomas (steve at tobtu dot com) + * + * We have to copy/paste the contents into the variant files because PHP 5.2 + * doesn't support late static binding, and we have no better workaround + * available that won't break PHP 7+. Therefore, we're forced to duplicate code. + */ +abstract class ParagonIE_Sodium_Core_Base64_Common +{ + /** + * Encode into Base64 + * + * Base64 character set "[A-Z][a-z][0-9]+/" + * + * @param string $src + * @return string + * @throws TypeError + */ + public static function encode($src) + { + return self::doEncode($src, true); + } + + /** + * Encode into Base64, no = padding + * + * Base64 character set "[A-Z][a-z][0-9]+/" + * + * @param string $src + * @return string + * @throws TypeError + */ + public static function encodeUnpadded($src) + { + return self::doEncode($src, false); + } + + /** + * @param string $src + * @param bool $pad Include = padding? + * @return string + * @throws TypeError + */ + protected static function doEncode($src, $pad = true) + { + $dest = ''; + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + // Main loop (no padding): + for ($i = 0; $i + 3 <= $srcLen; $i += 3) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, 3)); + $b0 = $chunk[1]; + $b1 = $chunk[2]; + $b2 = $chunk[3]; + + $dest .= + self::encode6Bits( $b0 >> 2 ) . + self::encode6Bits((($b0 << 4) | ($b1 >> 4)) & 63) . + self::encode6Bits((($b1 << 2) | ($b2 >> 6)) & 63) . + self::encode6Bits( $b2 & 63); + } + // The last chunk, which may have padding: + if ($i < $srcLen) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, $srcLen - $i)); + $b0 = $chunk[1]; + if ($i + 1 < $srcLen) { + $b1 = $chunk[2]; + $dest .= + self::encode6Bits($b0 >> 2) . + self::encode6Bits((($b0 << 4) | ($b1 >> 4)) & 63) . + self::encode6Bits(($b1 << 2) & 63); + if ($pad) { + $dest .= '='; + } + } else { + $dest .= + self::encode6Bits( $b0 >> 2) . + self::encode6Bits(($b0 << 4) & 63); + if ($pad) { + $dest .= '=='; + } + } + } + return $dest; + } + + /** + * decode from base64 into binary + * + * Base64 character set "./[A-Z][a-z][0-9]" + * + * @param string $src + * @param bool $strictPadding + * @return string + * @throws RangeException + * @throws TypeError + * @psalm-suppress RedundantCondition + */ + public static function decode($src, $strictPadding = false) + { + // Remove padding + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + if ($srcLen === 0) { + return ''; + } + + if ($strictPadding) { + if (($srcLen & 3) === 0) { + if ($src[$srcLen - 1] === '=') { + $srcLen--; + if ($src[$srcLen - 1] === '=') { + $srcLen--; + } + } + } + if (($srcLen & 3) === 1) { + throw new RangeException( + 'Incorrect padding' + ); + } + if ($src[$srcLen - 1] === '=') { + throw new RangeException( + 'Incorrect padding' + ); + } + } else { + $src = rtrim($src, '='); + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + } + + $err = 0; + $dest = ''; + // Main loop (no padding): + for ($i = 0; $i + 4 <= $srcLen; $i += 4) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, 4)); + $c0 = self::decode6Bits($chunk[1]); + $c1 = self::decode6Bits($chunk[2]); + $c2 = self::decode6Bits($chunk[3]); + $c3 = self::decode6Bits($chunk[4]); + + $dest .= pack( + 'CCC', + ((($c0 << 2) | ($c1 >> 4)) & 0xff), + ((($c1 << 4) | ($c2 >> 2)) & 0xff), + ((($c2 << 6) | $c3 ) & 0xff) + ); + $err |= ($c0 | $c1 | $c2 | $c3) >> 8; + } + // The last chunk, which may have padding: + if ($i < $srcLen) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, $srcLen - $i)); + $c0 = self::decode6Bits($chunk[1]); + + if ($i + 2 < $srcLen) { + $c1 = self::decode6Bits($chunk[2]); + $c2 = self::decode6Bits($chunk[3]); + $dest .= pack( + 'CC', + ((($c0 << 2) | ($c1 >> 4)) & 0xff), + ((($c1 << 4) | ($c2 >> 2)) & 0xff) + ); + $err |= ($c0 | $c1 | $c2) >> 8; + } elseif ($i + 1 < $srcLen) { + $c1 = self::decode6Bits($chunk[2]); + $dest .= pack( + 'C', + ((($c0 << 2) | ($c1 >> 4)) & 0xff) + ); + $err |= ($c0 | $c1) >> 8; + } elseif ($i < $srcLen && $strictPadding) { + $err |= 1; + } + } + /** @var bool $check */ + $check = ($err === 0); + if (!$check) { + throw new RangeException( + 'Base64::decode() only expects characters in the correct base64 alphabet' + ); + } + return $dest; + } + + /** + * Uses bitwise operators instead of table-lookups to turn 6-bit integers + * into 8-bit integers. + * + * Base64 character set: + * [A-Z] [a-z] [0-9] + / + * 0x41-0x5a, 0x61-0x7a, 0x30-0x39, 0x2b, 0x2f + * + * @param int $src + * @return int + */ + abstract protected static function decode6Bits($src); + + /** + * Uses bitwise operators instead of table-lookups to turn 8-bit integers + * into 6-bit integers. + * + * @param int $src + * @return string + */ + abstract protected static function encode6Bits($src); +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Base64/Original.php b/vendor/paragonie/sodium_compat/src/Core/Base64/Original.php new file mode 100644 index 0000000..dc939ee --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Base64/Original.php @@ -0,0 +1,248 @@ +<?php + +/** + * Class ParagonIE_Sodium_Core_Base64 + * + * Copyright (c) 2016 - 2018 Paragon Initiative Enterprises. + * Copyright (c) 2014 Steve "Sc00bz" Thomas (steve at tobtu dot com) + */ +class ParagonIE_Sodium_Core_Base64_Original +{ + // COPY ParagonIE_Sodium_Core_Base64_Common STARTING HERE + /** + * Encode into Base64 + * + * Base64 character set "[A-Z][a-z][0-9]+/" + * + * @param string $src + * @return string + * @throws TypeError + */ + public static function encode($src) + { + return self::doEncode($src, true); + } + + /** + * Encode into Base64, no = padding + * + * Base64 character set "[A-Z][a-z][0-9]+/" + * + * @param string $src + * @return string + * @throws TypeError + */ + public static function encodeUnpadded($src) + { + return self::doEncode($src, false); + } + + /** + * @param string $src + * @param bool $pad Include = padding? + * @return string + * @throws TypeError + */ + protected static function doEncode($src, $pad = true) + { + $dest = ''; + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + // Main loop (no padding): + for ($i = 0; $i + 3 <= $srcLen; $i += 3) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, 3)); + $b0 = $chunk[1]; + $b1 = $chunk[2]; + $b2 = $chunk[3]; + + $dest .= + self::encode6Bits( $b0 >> 2 ) . + self::encode6Bits((($b0 << 4) | ($b1 >> 4)) & 63) . + self::encode6Bits((($b1 << 2) | ($b2 >> 6)) & 63) . + self::encode6Bits( $b2 & 63); + } + // The last chunk, which may have padding: + if ($i < $srcLen) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, $srcLen - $i)); + $b0 = $chunk[1]; + if ($i + 1 < $srcLen) { + $b1 = $chunk[2]; + $dest .= + self::encode6Bits($b0 >> 2) . + self::encode6Bits((($b0 << 4) | ($b1 >> 4)) & 63) . + self::encode6Bits(($b1 << 2) & 63); + if ($pad) { + $dest .= '='; + } + } else { + $dest .= + self::encode6Bits( $b0 >> 2) . + self::encode6Bits(($b0 << 4) & 63); + if ($pad) { + $dest .= '=='; + } + } + } + return $dest; + } + + /** + * decode from base64 into binary + * + * Base64 character set "./[A-Z][a-z][0-9]" + * + * @param string $src + * @param bool $strictPadding + * @return string + * @throws RangeException + * @throws TypeError + * @psalm-suppress RedundantCondition + */ + public static function decode($src, $strictPadding = false) + { + // Remove padding + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + if ($srcLen === 0) { + return ''; + } + + if ($strictPadding) { + if (($srcLen & 3) === 0) { + if ($src[$srcLen - 1] === '=') { + $srcLen--; + if ($src[$srcLen - 1] === '=') { + $srcLen--; + } + } + } + if (($srcLen & 3) === 1) { + throw new RangeException( + 'Incorrect padding' + ); + } + if ($src[$srcLen - 1] === '=') { + throw new RangeException( + 'Incorrect padding' + ); + } + } else { + $src = rtrim($src, '='); + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + } + + $err = 0; + $dest = ''; + // Main loop (no padding): + for ($i = 0; $i + 4 <= $srcLen; $i += 4) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, 4)); + $c0 = self::decode6Bits($chunk[1]); + $c1 = self::decode6Bits($chunk[2]); + $c2 = self::decode6Bits($chunk[3]); + $c3 = self::decode6Bits($chunk[4]); + + $dest .= pack( + 'CCC', + ((($c0 << 2) | ($c1 >> 4)) & 0xff), + ((($c1 << 4) | ($c2 >> 2)) & 0xff), + ((($c2 << 6) | $c3) & 0xff) + ); + $err |= ($c0 | $c1 | $c2 | $c3) >> 8; + } + // The last chunk, which may have padding: + if ($i < $srcLen) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, $srcLen - $i)); + $c0 = self::decode6Bits($chunk[1]); + + if ($i + 2 < $srcLen) { + $c1 = self::decode6Bits($chunk[2]); + $c2 = self::decode6Bits($chunk[3]); + $dest .= pack( + 'CC', + ((($c0 << 2) | ($c1 >> 4)) & 0xff), + ((($c1 << 4) | ($c2 >> 2)) & 0xff) + ); + $err |= ($c0 | $c1 | $c2) >> 8; + } elseif ($i + 1 < $srcLen) { + $c1 = self::decode6Bits($chunk[2]); + $dest .= pack( + 'C', + ((($c0 << 2) | ($c1 >> 4)) & 0xff) + ); + $err |= ($c0 | $c1) >> 8; + } elseif ($i < $srcLen && $strictPadding) { + $err |= 1; + } + } + /** @var bool $check */ + $check = ($err === 0); + if (!$check) { + throw new RangeException( + 'Base64::decode() only expects characters in the correct base64 alphabet' + ); + } + return $dest; + } + // COPY ParagonIE_Sodium_Core_Base64_Common ENDING HERE + + /** + * Uses bitwise operators instead of table-lookups to turn 6-bit integers + * into 8-bit integers. + * + * Base64 character set: + * [A-Z] [a-z] [0-9] + / + * 0x41-0x5a, 0x61-0x7a, 0x30-0x39, 0x2b, 0x2f + * + * @param int $src + * @return int + */ + protected static function decode6Bits($src) + { + $ret = -1; + + // if ($src > 0x40 && $src < 0x5b) $ret += $src - 0x41 + 1; // -64 + $ret += (((0x40 - $src) & ($src - 0x5b)) >> 8) & ($src - 64); + + // if ($src > 0x60 && $src < 0x7b) $ret += $src - 0x61 + 26 + 1; // -70 + $ret += (((0x60 - $src) & ($src - 0x7b)) >> 8) & ($src - 70); + + // if ($src > 0x2f && $src < 0x3a) $ret += $src - 0x30 + 52 + 1; // 5 + $ret += (((0x2f - $src) & ($src - 0x3a)) >> 8) & ($src + 5); + + // if ($src == 0x2b) $ret += 62 + 1; + $ret += (((0x2a - $src) & ($src - 0x2c)) >> 8) & 63; + + // if ($src == 0x2f) ret += 63 + 1; + $ret += (((0x2e - $src) & ($src - 0x30)) >> 8) & 64; + + return $ret; + } + + /** + * Uses bitwise operators instead of table-lookups to turn 8-bit integers + * into 6-bit integers. + * + * @param int $src + * @return string + */ + protected static function encode6Bits($src) + { + $diff = 0x41; + + // if ($src > 25) $diff += 0x61 - 0x41 - 26; // 6 + $diff += ((25 - $src) >> 8) & 6; + + // if ($src > 51) $diff += 0x30 - 0x61 - 26; // -75 + $diff -= ((51 - $src) >> 8) & 75; + + // if ($src > 61) $diff += 0x2b - 0x30 - 10; // -15 + $diff -= ((61 - $src) >> 8) & 15; + + // if ($src > 62) $diff += 0x2f - 0x2b - 1; // 3 + $diff += ((62 - $src) >> 8) & 3; + + return pack('C', $src + $diff); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Base64/UrlSafe.php b/vendor/paragonie/sodium_compat/src/Core/Base64/UrlSafe.php new file mode 100644 index 0000000..64bf53b --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Base64/UrlSafe.php @@ -0,0 +1,247 @@ +<?php + +/** + * Class ParagonIE_Sodium_Core_Base64UrlSafe + * + * Copyright (c) 2016 - 2018 Paragon Initiative Enterprises. + * Copyright (c) 2014 Steve "Sc00bz" Thomas (steve at tobtu dot com) + */ +class ParagonIE_Sodium_Core_Base64_UrlSafe +{ + // COPY ParagonIE_Sodium_Core_Base64_Common STARTING HERE + /** + * Encode into Base64 + * + * Base64 character set "[A-Z][a-z][0-9]+/" + * + * @param string $src + * @return string + * @throws TypeError + */ + public static function encode($src) + { + return self::doEncode($src, true); + } + + /** + * Encode into Base64, no = padding + * + * Base64 character set "[A-Z][a-z][0-9]+/" + * + * @param string $src + * @return string + * @throws TypeError + */ + public static function encodeUnpadded($src) + { + return self::doEncode($src, false); + } + + /** + * @param string $src + * @param bool $pad Include = padding? + * @return string + * @throws TypeError + */ + protected static function doEncode($src, $pad = true) + { + $dest = ''; + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + // Main loop (no padding): + for ($i = 0; $i + 3 <= $srcLen; $i += 3) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, 3)); + $b0 = $chunk[1]; + $b1 = $chunk[2]; + $b2 = $chunk[3]; + + $dest .= + self::encode6Bits( $b0 >> 2 ) . + self::encode6Bits((($b0 << 4) | ($b1 >> 4)) & 63) . + self::encode6Bits((($b1 << 2) | ($b2 >> 6)) & 63) . + self::encode6Bits( $b2 & 63); + } + // The last chunk, which may have padding: + if ($i < $srcLen) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, $srcLen - $i)); + $b0 = $chunk[1]; + if ($i + 1 < $srcLen) { + $b1 = $chunk[2]; + $dest .= + self::encode6Bits($b0 >> 2) . + self::encode6Bits((($b0 << 4) | ($b1 >> 4)) & 63) . + self::encode6Bits(($b1 << 2) & 63); + if ($pad) { + $dest .= '='; + } + } else { + $dest .= + self::encode6Bits( $b0 >> 2) . + self::encode6Bits(($b0 << 4) & 63); + if ($pad) { + $dest .= '=='; + } + } + } + return $dest; + } + + /** + * decode from base64 into binary + * + * Base64 character set "./[A-Z][a-z][0-9]" + * + * @param string $src + * @param bool $strictPadding + * @return string + * @throws RangeException + * @throws TypeError + * @psalm-suppress RedundantCondition + */ + public static function decode($src, $strictPadding = false) + { + // Remove padding + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + if ($srcLen === 0) { + return ''; + } + + if ($strictPadding) { + if (($srcLen & 3) === 0) { + if ($src[$srcLen - 1] === '=') { + $srcLen--; + if ($src[$srcLen - 1] === '=') { + $srcLen--; + } + } + } + if (($srcLen & 3) === 1) { + throw new RangeException( + 'Incorrect padding' + ); + } + if ($src[$srcLen - 1] === '=') { + throw new RangeException( + 'Incorrect padding' + ); + } + } else { + $src = rtrim($src, '='); + $srcLen = ParagonIE_Sodium_Core_Util::strlen($src); + } + + $err = 0; + $dest = ''; + // Main loop (no padding): + for ($i = 0; $i + 4 <= $srcLen; $i += 4) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, 4)); + $c0 = self::decode6Bits($chunk[1]); + $c1 = self::decode6Bits($chunk[2]); + $c2 = self::decode6Bits($chunk[3]); + $c3 = self::decode6Bits($chunk[4]); + + $dest .= pack( + 'CCC', + ((($c0 << 2) | ($c1 >> 4)) & 0xff), + ((($c1 << 4) | ($c2 >> 2)) & 0xff), + ((($c2 << 6) | $c3) & 0xff) + ); + $err |= ($c0 | $c1 | $c2 | $c3) >> 8; + } + // The last chunk, which may have padding: + if ($i < $srcLen) { + /** @var array<int, int> $chunk */ + $chunk = unpack('C*', ParagonIE_Sodium_Core_Util::substr($src, $i, $srcLen - $i)); + $c0 = self::decode6Bits($chunk[1]); + + if ($i + 2 < $srcLen) { + $c1 = self::decode6Bits($chunk[2]); + $c2 = self::decode6Bits($chunk[3]); + $dest .= pack( + 'CC', + ((($c0 << 2) | ($c1 >> 4)) & 0xff), + ((($c1 << 4) | ($c2 >> 2)) & 0xff) + ); + $err |= ($c0 | $c1 | $c2) >> 8; + } elseif ($i + 1 < $srcLen) { + $c1 = self::decode6Bits($chunk[2]); + $dest .= pack( + 'C', + ((($c0 << 2) | ($c1 >> 4)) & 0xff) + ); + $err |= ($c0 | $c1) >> 8; + } elseif ($i < $srcLen && $strictPadding) { + $err |= 1; + } + } + /** @var bool $check */ + $check = ($err === 0); + if (!$check) { + throw new RangeException( + 'Base64::decode() only expects characters in the correct base64 alphabet' + ); + } + return $dest; + } + // COPY ParagonIE_Sodium_Core_Base64_Common ENDING HERE + /** + * Uses bitwise operators instead of table-lookups to turn 6-bit integers + * into 8-bit integers. + * + * Base64 character set: + * [A-Z] [a-z] [0-9] + / + * 0x41-0x5a, 0x61-0x7a, 0x30-0x39, 0x2b, 0x2f + * + * @param int $src + * @return int + */ + protected static function decode6Bits($src) + { + $ret = -1; + + // if ($src > 0x40 && $src < 0x5b) $ret += $src - 0x41 + 1; // -64 + $ret += (((0x40 - $src) & ($src - 0x5b)) >> 8) & ($src - 64); + + // if ($src > 0x60 && $src < 0x7b) $ret += $src - 0x61 + 26 + 1; // -70 + $ret += (((0x60 - $src) & ($src - 0x7b)) >> 8) & ($src - 70); + + // if ($src > 0x2f && $src < 0x3a) $ret += $src - 0x30 + 52 + 1; // 5 + $ret += (((0x2f - $src) & ($src - 0x3a)) >> 8) & ($src + 5); + + // if ($src == 0x2c) $ret += 62 + 1; + $ret += (((0x2c - $src) & ($src - 0x2e)) >> 8) & 63; + + // if ($src == 0x5f) ret += 63 + 1; + $ret += (((0x5e - $src) & ($src - 0x60)) >> 8) & 64; + + return $ret; + } + + /** + * Uses bitwise operators instead of table-lookups to turn 8-bit integers + * into 6-bit integers. + * + * @param int $src + * @return string + */ + protected static function encode6Bits($src) + { + $diff = 0x41; + + // if ($src > 25) $diff += 0x61 - 0x41 - 26; // 6 + $diff += ((25 - $src) >> 8) & 6; + + // if ($src > 51) $diff += 0x30 - 0x61 - 26; // -75 + $diff -= ((51 - $src) >> 8) & 75; + + // if ($src > 61) $diff += 0x2d - 0x30 - 10; // -13 + $diff -= ((61 - $src) >> 8) & 13; + + // if ($src > 62) $diff += 0x5f - 0x2b - 1; // 3 + $diff += ((62 - $src) >> 8) & 49; + + return pack('C', $src + $diff); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/ChaCha20.php b/vendor/paragonie/sodium_compat/src/Core/ChaCha20.php new file mode 100644 index 0000000..806010c --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/ChaCha20.php @@ -0,0 +1,395 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_ChaCha20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_ChaCha20 + */ +class ParagonIE_Sodium_Core_ChaCha20 extends ParagonIE_Sodium_Core_Util +{ + /** + * Bitwise left rotation + * + * @internal You should not use this directly from another application + * + * @param int $v + * @param int $n + * @return int + */ + public static function rotate($v, $n) + { + $v &= 0xffffffff; + $n &= 31; + return (int) ( + 0xffffffff & ( + ($v << $n) + | + ($v >> (32 - $n)) + ) + ); + } + + /** + * The ChaCha20 quarter round function. Works on four 32-bit integers. + * + * @internal You should not use this directly from another application + * + * @param int $a + * @param int $b + * @param int $c + * @param int $d + * @return array<int, int> + */ + protected static function quarterRound($a, $b, $c, $d) + { + # a = PLUS(a,b); d = ROTATE(XOR(d,a),16); + /** @var int $a */ + $a = ($a + $b) & 0xffffffff; + $d = self::rotate($d ^ $a, 16); + + # c = PLUS(c,d); b = ROTATE(XOR(b,c),12); + /** @var int $c */ + $c = ($c + $d) & 0xffffffff; + $b = self::rotate($b ^ $c, 12); + + # a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); + /** @var int $a */ + $a = ($a + $b) & 0xffffffff; + $d = self::rotate($d ^ $a, 8); + + # c = PLUS(c,d); b = ROTATE(XOR(b,c), 7); + /** @var int $c */ + $c = ($c + $d) & 0xffffffff; + $b = self::rotate($b ^ $c, 7); + return array((int) $a, (int) $b, (int) $c, (int) $d); + } + + /** + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core_ChaCha20_Ctx $ctx + * @param string $message + * + * @return string + * @throws TypeError + * @throws SodiumException + */ + public static function encryptBytes( + ParagonIE_Sodium_Core_ChaCha20_Ctx $ctx, + $message = '' + ) { + $bytes = self::strlen($message); + + /* + j0 = ctx->input[0]; + j1 = ctx->input[1]; + j2 = ctx->input[2]; + j3 = ctx->input[3]; + j4 = ctx->input[4]; + j5 = ctx->input[5]; + j6 = ctx->input[6]; + j7 = ctx->input[7]; + j8 = ctx->input[8]; + j9 = ctx->input[9]; + j10 = ctx->input[10]; + j11 = ctx->input[11]; + j12 = ctx->input[12]; + j13 = ctx->input[13]; + j14 = ctx->input[14]; + j15 = ctx->input[15]; + */ + $j0 = (int) $ctx[0]; + $j1 = (int) $ctx[1]; + $j2 = (int) $ctx[2]; + $j3 = (int) $ctx[3]; + $j4 = (int) $ctx[4]; + $j5 = (int) $ctx[5]; + $j6 = (int) $ctx[6]; + $j7 = (int) $ctx[7]; + $j8 = (int) $ctx[8]; + $j9 = (int) $ctx[9]; + $j10 = (int) $ctx[10]; + $j11 = (int) $ctx[11]; + $j12 = (int) $ctx[12]; + $j13 = (int) $ctx[13]; + $j14 = (int) $ctx[14]; + $j15 = (int) $ctx[15]; + + $c = ''; + for (;;) { + if ($bytes < 64) { + $message .= str_repeat("\x00", 64 - $bytes); + } + + $x0 = (int) $j0; + $x1 = (int) $j1; + $x2 = (int) $j2; + $x3 = (int) $j3; + $x4 = (int) $j4; + $x5 = (int) $j5; + $x6 = (int) $j6; + $x7 = (int) $j7; + $x8 = (int) $j8; + $x9 = (int) $j9; + $x10 = (int) $j10; + $x11 = (int) $j11; + $x12 = (int) $j12; + $x13 = (int) $j13; + $x14 = (int) $j14; + $x15 = (int) $j15; + + # for (i = 20; i > 0; i -= 2) { + for ($i = 20; $i > 0; $i -= 2) { + # QUARTERROUND( x0, x4, x8, x12) + list($x0, $x4, $x8, $x12) = self::quarterRound($x0, $x4, $x8, $x12); + + # QUARTERROUND( x1, x5, x9, x13) + list($x1, $x5, $x9, $x13) = self::quarterRound($x1, $x5, $x9, $x13); + + # QUARTERROUND( x2, x6, x10, x14) + list($x2, $x6, $x10, $x14) = self::quarterRound($x2, $x6, $x10, $x14); + + # QUARTERROUND( x3, x7, x11, x15) + list($x3, $x7, $x11, $x15) = self::quarterRound($x3, $x7, $x11, $x15); + + # QUARTERROUND( x0, x5, x10, x15) + list($x0, $x5, $x10, $x15) = self::quarterRound($x0, $x5, $x10, $x15); + + # QUARTERROUND( x1, x6, x11, x12) + list($x1, $x6, $x11, $x12) = self::quarterRound($x1, $x6, $x11, $x12); + + # QUARTERROUND( x2, x7, x8, x13) + list($x2, $x7, $x8, $x13) = self::quarterRound($x2, $x7, $x8, $x13); + + # QUARTERROUND( x3, x4, x9, x14) + list($x3, $x4, $x9, $x14) = self::quarterRound($x3, $x4, $x9, $x14); + } + /* + x0 = PLUS(x0, j0); + x1 = PLUS(x1, j1); + x2 = PLUS(x2, j2); + x3 = PLUS(x3, j3); + x4 = PLUS(x4, j4); + x5 = PLUS(x5, j5); + x6 = PLUS(x6, j6); + x7 = PLUS(x7, j7); + x8 = PLUS(x8, j8); + x9 = PLUS(x9, j9); + x10 = PLUS(x10, j10); + x11 = PLUS(x11, j11); + x12 = PLUS(x12, j12); + x13 = PLUS(x13, j13); + x14 = PLUS(x14, j14); + x15 = PLUS(x15, j15); + */ + /** @var int $x0 */ + $x0 = ($x0 & 0xffffffff) + $j0; + /** @var int $x1 */ + $x1 = ($x1 & 0xffffffff) + $j1; + /** @var int $x2 */ + $x2 = ($x2 & 0xffffffff) + $j2; + /** @var int $x3 */ + $x3 = ($x3 & 0xffffffff) + $j3; + /** @var int $x4 */ + $x4 = ($x4 & 0xffffffff) + $j4; + /** @var int $x5 */ + $x5 = ($x5 & 0xffffffff) + $j5; + /** @var int $x6 */ + $x6 = ($x6 & 0xffffffff) + $j6; + /** @var int $x7 */ + $x7 = ($x7 & 0xffffffff) + $j7; + /** @var int $x8 */ + $x8 = ($x8 & 0xffffffff) + $j8; + /** @var int $x9 */ + $x9 = ($x9 & 0xffffffff) + $j9; + /** @var int $x10 */ + $x10 = ($x10 & 0xffffffff) + $j10; + /** @var int $x11 */ + $x11 = ($x11 & 0xffffffff) + $j11; + /** @var int $x12 */ + $x12 = ($x12 & 0xffffffff) + $j12; + /** @var int $x13 */ + $x13 = ($x13 & 0xffffffff) + $j13; + /** @var int $x14 */ + $x14 = ($x14 & 0xffffffff) + $j14; + /** @var int $x15 */ + $x15 = ($x15 & 0xffffffff) + $j15; + + /* + x0 = XOR(x0, LOAD32_LE(m + 0)); + x1 = XOR(x1, LOAD32_LE(m + 4)); + x2 = XOR(x2, LOAD32_LE(m + 8)); + x3 = XOR(x3, LOAD32_LE(m + 12)); + x4 = XOR(x4, LOAD32_LE(m + 16)); + x5 = XOR(x5, LOAD32_LE(m + 20)); + x6 = XOR(x6, LOAD32_LE(m + 24)); + x7 = XOR(x7, LOAD32_LE(m + 28)); + x8 = XOR(x8, LOAD32_LE(m + 32)); + x9 = XOR(x9, LOAD32_LE(m + 36)); + x10 = XOR(x10, LOAD32_LE(m + 40)); + x11 = XOR(x11, LOAD32_LE(m + 44)); + x12 = XOR(x12, LOAD32_LE(m + 48)); + x13 = XOR(x13, LOAD32_LE(m + 52)); + x14 = XOR(x14, LOAD32_LE(m + 56)); + x15 = XOR(x15, LOAD32_LE(m + 60)); + */ + $x0 ^= self::load_4(self::substr($message, 0, 4)); + $x1 ^= self::load_4(self::substr($message, 4, 4)); + $x2 ^= self::load_4(self::substr($message, 8, 4)); + $x3 ^= self::load_4(self::substr($message, 12, 4)); + $x4 ^= self::load_4(self::substr($message, 16, 4)); + $x5 ^= self::load_4(self::substr($message, 20, 4)); + $x6 ^= self::load_4(self::substr($message, 24, 4)); + $x7 ^= self::load_4(self::substr($message, 28, 4)); + $x8 ^= self::load_4(self::substr($message, 32, 4)); + $x9 ^= self::load_4(self::substr($message, 36, 4)); + $x10 ^= self::load_4(self::substr($message, 40, 4)); + $x11 ^= self::load_4(self::substr($message, 44, 4)); + $x12 ^= self::load_4(self::substr($message, 48, 4)); + $x13 ^= self::load_4(self::substr($message, 52, 4)); + $x14 ^= self::load_4(self::substr($message, 56, 4)); + $x15 ^= self::load_4(self::substr($message, 60, 4)); + + /* + j12 = PLUSONE(j12); + if (!j12) { + j13 = PLUSONE(j13); + } + */ + ++$j12; + if ($j12 & 0xf0000000) { + throw new SodiumException('Overflow'); + } + + /* + STORE32_LE(c + 0, x0); + STORE32_LE(c + 4, x1); + STORE32_LE(c + 8, x2); + STORE32_LE(c + 12, x3); + STORE32_LE(c + 16, x4); + STORE32_LE(c + 20, x5); + STORE32_LE(c + 24, x6); + STORE32_LE(c + 28, x7); + STORE32_LE(c + 32, x8); + STORE32_LE(c + 36, x9); + STORE32_LE(c + 40, x10); + STORE32_LE(c + 44, x11); + STORE32_LE(c + 48, x12); + STORE32_LE(c + 52, x13); + STORE32_LE(c + 56, x14); + STORE32_LE(c + 60, x15); + */ + $block = self::store32_le((int) ($x0 & 0xffffffff)) . + self::store32_le((int) ($x1 & 0xffffffff)) . + self::store32_le((int) ($x2 & 0xffffffff)) . + self::store32_le((int) ($x3 & 0xffffffff)) . + self::store32_le((int) ($x4 & 0xffffffff)) . + self::store32_le((int) ($x5 & 0xffffffff)) . + self::store32_le((int) ($x6 & 0xffffffff)) . + self::store32_le((int) ($x7 & 0xffffffff)) . + self::store32_le((int) ($x8 & 0xffffffff)) . + self::store32_le((int) ($x9 & 0xffffffff)) . + self::store32_le((int) ($x10 & 0xffffffff)) . + self::store32_le((int) ($x11 & 0xffffffff)) . + self::store32_le((int) ($x12 & 0xffffffff)) . + self::store32_le((int) ($x13 & 0xffffffff)) . + self::store32_le((int) ($x14 & 0xffffffff)) . + self::store32_le((int) ($x15 & 0xffffffff)); + + /* Partial block */ + if ($bytes < 64) { + $c .= self::substr($block, 0, $bytes); + break; + } + + /* Full block */ + $c .= $block; + $bytes -= 64; + if ($bytes <= 0) { + break; + } + $message = self::substr($message, 64); + } + /* end for(;;) loop */ + + $ctx[12] = $j12; + $ctx[13] = $j13; + return $c; + } + + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function stream($len = 64, $nonce = '', $key = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core_ChaCha20_Ctx($key, $nonce), + str_repeat("\x00", $len) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function ietfStream($len, $nonce = '', $key = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core_ChaCha20_IetfCtx($key, $nonce), + str_repeat("\x00", $len) + ); + } + + /** + * @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 = '', $ic = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core_ChaCha20_IetfCtx($key, $nonce, $ic), + $message + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @param string $ic + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function streamXorIc($message, $nonce = '', $key = '', $ic = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core_ChaCha20_Ctx($key, $nonce, $ic), + $message + ); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php b/vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php new file mode 100644 index 0000000..47a42b7 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/ChaCha20/Ctx.php @@ -0,0 +1,119 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_ChaCha20_Ctx', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_ChaCha20_Ctx + */ +class ParagonIE_Sodium_Core_ChaCha20_Ctx extends ParagonIE_Sodium_Core_Util implements ArrayAccess +{ + /** + * @var SplFixedArray internally, <int, int> + */ + protected $container; + + /** + * ParagonIE_Sodium_Core_ChaCha20_Ctx constructor. + * + * @internal You should not use this directly from another application + * + * @param string $key ChaCha20 key. + * @param string $iv Initialization Vector (a.k.a. nonce). + * @param string $counter The initial counter value. + * Defaults to 8 0x00 bytes. + * @throws InvalidArgumentException + * @throws TypeError + */ + public function __construct($key = '', $iv = '', $counter = '') + { + if (self::strlen($key) !== 32) { + throw new InvalidArgumentException('ChaCha20 expects a 256-bit key.'); + } + if (self::strlen($iv) !== 8) { + throw new InvalidArgumentException('ChaCha20 expects a 64-bit nonce.'); + } + $this->container = new SplFixedArray(16); + + /* "expand 32-byte k" as per ChaCha20 spec */ + $this->container[0] = 0x61707865; + $this->container[1] = 0x3320646e; + $this->container[2] = 0x79622d32; + $this->container[3] = 0x6b206574; + $this->container[4] = self::load_4(self::substr($key, 0, 4)); + $this->container[5] = self::load_4(self::substr($key, 4, 4)); + $this->container[6] = self::load_4(self::substr($key, 8, 4)); + $this->container[7] = self::load_4(self::substr($key, 12, 4)); + $this->container[8] = self::load_4(self::substr($key, 16, 4)); + $this->container[9] = self::load_4(self::substr($key, 20, 4)); + $this->container[10] = self::load_4(self::substr($key, 24, 4)); + $this->container[11] = self::load_4(self::substr($key, 28, 4)); + + if (empty($counter)) { + $this->container[12] = 0; + $this->container[13] = 0; + } else { + $this->container[12] = self::load_4(self::substr($counter, 0, 4)); + $this->container[13] = self::load_4(self::substr($counter, 4, 4)); + } + $this->container[14] = self::load_4(self::substr($iv, 0, 4)); + $this->container[15] = self::load_4(self::substr($iv, 4, 4)); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @param int $value + * @return void + * @psalm-suppress MixedArrayOffset + */ + public function offsetSet($offset, $value) + { + if (!is_int($offset)) { + throw new InvalidArgumentException('Expected an integer'); + } + if (!is_int($value)) { + throw new InvalidArgumentException('Expected an integer'); + } + $this->container[$offset] = $value; + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return bool + */ + public function offsetExists($offset) + { + return isset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return void + * @psalm-suppress MixedArrayOffset + */ + public function offsetUnset($offset) + { + unset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return mixed|null + * @psalm-suppress MixedArrayOffset + */ + public function offsetGet($offset) + { + return isset($this->container[$offset]) + ? $this->container[$offset] + : null; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/ChaCha20/IetfCtx.php b/vendor/paragonie/sodium_compat/src/Core/ChaCha20/IetfCtx.php new file mode 100644 index 0000000..4d63b90 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/ChaCha20/IetfCtx.php @@ -0,0 +1,38 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_ChaCha20_IetfCtx', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_ChaCha20_IetfCtx + */ +class ParagonIE_Sodium_Core_ChaCha20_IetfCtx extends ParagonIE_Sodium_Core_ChaCha20_Ctx +{ + /** + * ParagonIE_Sodium_Core_ChaCha20_IetfCtx constructor. + * + * @internal You should not use this directly from another application + * + * @param string $key ChaCha20 key. + * @param string $iv Initialization Vector (a.k.a. nonce). + * @param string $counter The initial counter value. + * Defaults to 4 0x00 bytes. + * @throws InvalidArgumentException + * @throws TypeError + */ + public function __construct($key = '', $iv = '', $counter = '') + { + if (self::strlen($iv) !== 12) { + throw new InvalidArgumentException('ChaCha20 expects a 96-bit nonce in IETF mode.'); + } + parent::__construct($key, self::substr($iv, 0, 8), $counter); + + if (!empty($counter)) { + $this->container[12] = self::load_4(self::substr($counter, 0, 4)); + } + $this->container[13] = self::load_4(self::substr($iv, 0, 4)); + $this->container[14] = self::load_4(self::substr($iv, 4, 4)); + $this->container[15] = self::load_4(self::substr($iv, 8, 4)); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519.php new file mode 100644 index 0000000..f0b9c5f --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519.php @@ -0,0 +1,4106 @@ +<?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_);
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php new file mode 100644 index 0000000..64c489a --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Fe.php @@ -0,0 +1,123 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Curve25519_Fe', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Curve25519_Fe + * + * This represents a Field Element + */ +class ParagonIE_Sodium_Core_Curve25519_Fe implements ArrayAccess +{ + /** + * @var array<int, int> + */ + protected $container = array(); + + /** + * @var int + */ + protected $size = 10; + + /** + * @internal You should not use this directly from another application + * + * @param array<int, int> $array + * @param bool $save_indexes + * @return self + */ + public static function fromArray($array, $save_indexes = null) + { + $count = count($array); + if ($save_indexes) { + $keys = array_keys($array); + } else { + $keys = range(0, $count - 1); + } + $array = array_values($array); + /** @var array<int, int> $keys */ + + $obj = new ParagonIE_Sodium_Core_Curve25519_Fe(); + if ($save_indexes) { + for ($i = 0; $i < $count; ++$i) { + $obj->offsetSet($keys[$i], $array[$i]); + } + } else { + for ($i = 0; $i < $count; ++$i) { + $obj->offsetSet($i, $array[$i]); + } + } + return $obj; + } + + /** + * @internal You should not use this directly from another application + * + * @param int|null $offset + * @param int $value + * @return void + * @psalm-suppress MixedArrayOffset + */ + public function offsetSet($offset, $value) + { + if (!is_int($value)) { + throw new InvalidArgumentException('Expected an integer'); + } + if (is_null($offset)) { + $this->container[] = $value; + } else { + $this->container[$offset] = $value; + } + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return bool + * @psalm-suppress MixedArrayOffset + */ + public function offsetExists($offset) + { + return isset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return void + * @psalm-suppress MixedArrayOffset + */ + public function offsetUnset($offset) + { + unset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return int + * @psalm-suppress MixedArrayOffset + */ + public function offsetGet($offset) + { + if (!isset($this->container[$offset])) { + $this->container[$offset] = 0; + } + return (int) ($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @return array + */ + public function __debugInfo() + { + return array(implode(', ', $this->container)); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/Cached.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/Cached.php new file mode 100644 index 0000000..39bf897 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/Cached.php @@ -0,0 +1,65 @@ +<?php + + +if (class_exists('ParagonIE_Sodium_Core_Curve25519_Ge_Cached', false)) { + return; +} +/** + * Class ParagonIE_Sodium_Core_Curve25519_Ge_Cached + */ +class ParagonIE_Sodium_Core_Curve25519_Ge_Cached +{ + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $YplusX; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $YminusX; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $Z; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $T2d; + + /** + * ParagonIE_Sodium_Core_Curve25519_Ge_Cached constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $YplusX + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $YminusX + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $Z + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $T2d + */ + public function __construct( + ParagonIE_Sodium_Core_Curve25519_Fe $YplusX = null, + ParagonIE_Sodium_Core_Curve25519_Fe $YminusX = null, + ParagonIE_Sodium_Core_Curve25519_Fe $Z = null, + ParagonIE_Sodium_Core_Curve25519_Fe $T2d = null + ) { + if ($YplusX === null) { + $YplusX = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->YplusX = $YplusX; + if ($YminusX === null) { + $YminusX = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->YminusX = $YminusX; + if ($Z === null) { + $Z = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->Z = $Z; + if ($T2d === null) { + $T2d = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->T2d = $T2d; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P1p1.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P1p1.php new file mode 100644 index 0000000..a63d6ab --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P1p1.php @@ -0,0 +1,64 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Curve25519_Ge_P1p1', false)) { + return; +} +/** + * Class ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 + */ +class ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 +{ + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $X; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $Y; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $Z; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $T; + + /** + * ParagonIE_Sodium_Core_Curve25519_Ge_P1p1 constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $x + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $y + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $z + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $t + */ + public function __construct( + ParagonIE_Sodium_Core_Curve25519_Fe $x = null, + ParagonIE_Sodium_Core_Curve25519_Fe $y = null, + ParagonIE_Sodium_Core_Curve25519_Fe $z = null, + ParagonIE_Sodium_Core_Curve25519_Fe $t = null + ) { + if ($x === null) { + $x = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->X = $x; + if ($y === null) { + $y = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->Y = $y; + if ($z === null) { + $z = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->Z = $z; + if ($t === null) { + $t = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->T = $t; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P2.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P2.php new file mode 100644 index 0000000..aee4000 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P2.php @@ -0,0 +1,54 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Curve25519_Ge_P2', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Curve25519_Ge_P2 + */ +class ParagonIE_Sodium_Core_Curve25519_Ge_P2 +{ + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $X; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $Y; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $Z; + + /** + * ParagonIE_Sodium_Core_Curve25519_Ge_P2 constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $x + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $y + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $z + */ + public function __construct( + ParagonIE_Sodium_Core_Curve25519_Fe $x = null, + ParagonIE_Sodium_Core_Curve25519_Fe $y = null, + ParagonIE_Sodium_Core_Curve25519_Fe $z = null + ) { + if ($x === null) { + $x = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->X = $x; + if ($y === null) { + $y = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->Y = $y; + if ($z === null) { + $z = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->Z = $z; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P3.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P3.php new file mode 100644 index 0000000..00f5b27 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/P3.php @@ -0,0 +1,65 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Curve25519_Ge_P3', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Curve25519_Ge_P3 + */ +class ParagonIE_Sodium_Core_Curve25519_Ge_P3 +{ + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $X; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $Y; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $Z; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $T; + + /** + * ParagonIE_Sodium_Core_Curve25519_Ge_P3 constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $x + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $y + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $z + * @param ParagonIE_Sodium_Core_Curve25519_Fe|null $t + */ + public function __construct( + ParagonIE_Sodium_Core_Curve25519_Fe $x = null, + ParagonIE_Sodium_Core_Curve25519_Fe $y = null, + ParagonIE_Sodium_Core_Curve25519_Fe $z = null, + ParagonIE_Sodium_Core_Curve25519_Fe $t = null + ) { + if ($x === null) { + $x = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->X = $x; + if ($y === null) { + $y = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->Y = $y; + if ($z === null) { + $z = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->Z = $z; + if ($t === null) { + $t = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->T = $t; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/Precomp.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/Precomp.php new file mode 100644 index 0000000..59611c1 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/Ge/Precomp.php @@ -0,0 +1,54 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Curve25519_Ge_Precomp', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Curve25519_Ge_Precomp + */ +class ParagonIE_Sodium_Core_Curve25519_Ge_Precomp +{ + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $yplusx; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $yminusx; + + /** + * @var ParagonIE_Sodium_Core_Curve25519_Fe + */ + public $xy2d; + + /** + * ParagonIE_Sodium_Core_Curve25519_Ge_Precomp constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core_Curve25519_Fe $yplusx + * @param ParagonIE_Sodium_Core_Curve25519_Fe $yminusx + * @param ParagonIE_Sodium_Core_Curve25519_Fe $xy2d + */ + public function __construct( + ParagonIE_Sodium_Core_Curve25519_Fe $yplusx = null, + ParagonIE_Sodium_Core_Curve25519_Fe $yminusx = null, + ParagonIE_Sodium_Core_Curve25519_Fe $xy2d = null + ) { + if ($yplusx === null) { + $yplusx = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->yplusx = $yplusx; + if ($yminusx === null) { + $yminusx = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->yminusx = $yminusx; + if ($xy2d === null) { + $xy2d = new ParagonIE_Sodium_Core_Curve25519_Fe(); + } + $this->xy2d = $xy2d; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php b/vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php new file mode 100644 index 0000000..adab63e --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/H.php @@ -0,0 +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(
+ 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),
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+ array(
+ array(-16657702, 2817643, -10286362, 14811298, 6024667, 13349505, -27315504, -10497842, -27672585, -11539858),
+ array(15941029, -9405932, -21367050, 8062055, 31876073, -238629, -15278393, -1444429, 15397331, -4130193),
+ array(8934485, -13485467, -23286397, -13423241, -32446090, 14047986, 31170398, -1441021, -27505566, 15087184),
+ ),
+ array(
+ array(-18357243, -2156491, 24524913, -16677868, 15520427, -6360776, -15502406, 11461896, 16788528, -5868942),
+ array(-1947386, 16013773, 21750665, 3714552, -17401782, -16055433, -3770287, -10323320, 31322514, -11615635),
+ array(21426655, -5650218, -13648287, -5347537, -28812189, -4920970, -18275391, -14621414, 13040862, -12112948),
+ ),
+ 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/Curve25519/README.md b/vendor/paragonie/sodium_compat/src/Core/Curve25519/README.md new file mode 100644 index 0000000..e8097fa --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Curve25519/README.md @@ -0,0 +1,3 @@ +# Curve25519 Data Structures + +These are PHP implementation of the [structs used in the ref10 curve25519 code](https://github.com/jedisct1/libsodium/blob/master/src/libsodium/include/sodium/private/curve25519_ref10.h). diff --git a/vendor/paragonie/sodium_compat/src/Core/Ed25519.php b/vendor/paragonie/sodium_compat/src/Core/Ed25519.php new file mode 100644 index 0000000..c29f493 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Ed25519.php @@ -0,0 +1,551 @@ +<?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);
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/HChaCha20.php b/vendor/paragonie/sodium_compat/src/Core/HChaCha20.php new file mode 100644 index 0000000..947df10 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/HChaCha20.php @@ -0,0 +1,108 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_HChaCha20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_HChaCha20 + */ +class ParagonIE_Sodium_Core_HChaCha20 extends ParagonIE_Sodium_Core_ChaCha20 +{ + /** + * @param string $in + * @param string $key + * @param string|null $c + * @return string + * @throws TypeError + */ + public static function hChaCha20($in = '', $key = '', $c = null) + { + $ctx = array(); + + if ($c === null) { + $ctx[0] = 0x61707865; + $ctx[1] = 0x3320646e; + $ctx[2] = 0x79622d32; + $ctx[3] = 0x6b206574; + } else { + $ctx[0] = self::load_4(self::substr($c, 0, 4)); + $ctx[1] = self::load_4(self::substr($c, 4, 4)); + $ctx[2] = self::load_4(self::substr($c, 8, 4)); + $ctx[3] = self::load_4(self::substr($c, 12, 4)); + } + $ctx[4] = self::load_4(self::substr($key, 0, 4)); + $ctx[5] = self::load_4(self::substr($key, 4, 4)); + $ctx[6] = self::load_4(self::substr($key, 8, 4)); + $ctx[7] = self::load_4(self::substr($key, 12, 4)); + $ctx[8] = self::load_4(self::substr($key, 16, 4)); + $ctx[9] = self::load_4(self::substr($key, 20, 4)); + $ctx[10] = self::load_4(self::substr($key, 24, 4)); + $ctx[11] = self::load_4(self::substr($key, 28, 4)); + $ctx[12] = self::load_4(self::substr($in, 0, 4)); + $ctx[13] = self::load_4(self::substr($in, 4, 4)); + $ctx[14] = self::load_4(self::substr($in, 8, 4)); + $ctx[15] = self::load_4(self::substr($in, 12, 4)); + return self::hChaCha20Bytes($ctx); + } + + /** + * @param array $ctx + * @return string + * @throws TypeError + */ + protected static function hChaCha20Bytes(array $ctx) + { + $x0 = (int) $ctx[0]; + $x1 = (int) $ctx[1]; + $x2 = (int) $ctx[2]; + $x3 = (int) $ctx[3]; + $x4 = (int) $ctx[4]; + $x5 = (int) $ctx[5]; + $x6 = (int) $ctx[6]; + $x7 = (int) $ctx[7]; + $x8 = (int) $ctx[8]; + $x9 = (int) $ctx[9]; + $x10 = (int) $ctx[10]; + $x11 = (int) $ctx[11]; + $x12 = (int) $ctx[12]; + $x13 = (int) $ctx[13]; + $x14 = (int) $ctx[14]; + $x15 = (int) $ctx[15]; + + for ($i = 0; $i < 10; ++$i) { + # QUARTERROUND( x0, x4, x8, x12) + list($x0, $x4, $x8, $x12) = self::quarterRound($x0, $x4, $x8, $x12); + + # QUARTERROUND( x1, x5, x9, x13) + list($x1, $x5, $x9, $x13) = self::quarterRound($x1, $x5, $x9, $x13); + + # QUARTERROUND( x2, x6, x10, x14) + list($x2, $x6, $x10, $x14) = self::quarterRound($x2, $x6, $x10, $x14); + + # QUARTERROUND( x3, x7, x11, x15) + list($x3, $x7, $x11, $x15) = self::quarterRound($x3, $x7, $x11, $x15); + + # QUARTERROUND( x0, x5, x10, x15) + list($x0, $x5, $x10, $x15) = self::quarterRound($x0, $x5, $x10, $x15); + + # QUARTERROUND( x1, x6, x11, x12) + list($x1, $x6, $x11, $x12) = self::quarterRound($x1, $x6, $x11, $x12); + + # QUARTERROUND( x2, x7, x8, x13) + list($x2, $x7, $x8, $x13) = self::quarterRound($x2, $x7, $x8, $x13); + + # QUARTERROUND( x3, x4, x9, x14) + list($x3, $x4, $x9, $x14) = self::quarterRound($x3, $x4, $x9, $x14); + } + + return self::store32_le((int) ($x0 & 0xffffffff)) . + self::store32_le((int) ($x1 & 0xffffffff)) . + self::store32_le((int) ($x2 & 0xffffffff)) . + self::store32_le((int) ($x3 & 0xffffffff)) . + self::store32_le((int) ($x12 & 0xffffffff)) . + self::store32_le((int) ($x13 & 0xffffffff)) . + self::store32_le((int) ($x14 & 0xffffffff)) . + self::store32_le((int) ($x15 & 0xffffffff)); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/HSalsa20.php b/vendor/paragonie/sodium_compat/src/Core/HSalsa20.php new file mode 100644 index 0000000..35ee79e --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/HSalsa20.php @@ -0,0 +1,96 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_HSalsa20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_HSalsa20 + */ +abstract class ParagonIE_Sodium_Core_HSalsa20 extends ParagonIE_Sodium_Core_Salsa20 +{ + /** + * Calculate an hsalsa20 hash of a single block + * + * HSalsa20 doesn't have a counter and will never be used for more than + * one block (used to derive a subkey for xsalsa20). + * + * @internal You should not use this directly from another application + * + * @param string $in + * @param string $k + * @param string|null $c + * @return string + * @throws TypeError + */ + public static function hsalsa20($in, $k, $c = null) + { + if ($c === null) { + $x0 = 0x61707865; + $x5 = 0x3320646e; + $x10 = 0x79622d32; + $x15 = 0x6b206574; + } else { + $x0 = self::load_4(self::substr($c, 0, 4)); + $x5 = self::load_4(self::substr($c, 4, 4)); + $x10 = self::load_4(self::substr($c, 8, 4)); + $x15 = self::load_4(self::substr($c, 12, 4)); + } + $x1 = self::load_4(self::substr($k, 0, 4)); + $x2 = self::load_4(self::substr($k, 4, 4)); + $x3 = self::load_4(self::substr($k, 8, 4)); + $x4 = self::load_4(self::substr($k, 12, 4)); + $x11 = self::load_4(self::substr($k, 16, 4)); + $x12 = self::load_4(self::substr($k, 20, 4)); + $x13 = self::load_4(self::substr($k, 24, 4)); + $x14 = self::load_4(self::substr($k, 28, 4)); + $x6 = self::load_4(self::substr($in, 0, 4)); + $x7 = self::load_4(self::substr($in, 4, 4)); + $x8 = self::load_4(self::substr($in, 8, 4)); + $x9 = self::load_4(self::substr($in, 12, 4)); + + for ($i = self::ROUNDS; $i > 0; $i -= 2) { + $x4 ^= self::rotate($x0 + $x12, 7); + $x8 ^= self::rotate($x4 + $x0, 9); + $x12 ^= self::rotate($x8 + $x4, 13); + $x0 ^= self::rotate($x12 + $x8, 18); + $x9 ^= self::rotate($x5 + $x1, 7); + $x13 ^= self::rotate($x9 + $x5, 9); + $x1 ^= self::rotate($x13 + $x9, 13); + $x5 ^= self::rotate($x1 + $x13, 18); + $x14 ^= self::rotate($x10 + $x6, 7); + $x2 ^= self::rotate($x14 + $x10, 9); + $x6 ^= self::rotate($x2 + $x14, 13); + $x10 ^= self::rotate($x6 + $x2, 18); + $x3 ^= self::rotate($x15 + $x11, 7); + $x7 ^= self::rotate($x3 + $x15, 9); + $x11 ^= self::rotate($x7 + $x3, 13); + $x15 ^= self::rotate($x11 + $x7, 18); + $x1 ^= self::rotate($x0 + $x3, 7); + $x2 ^= self::rotate($x1 + $x0, 9); + $x3 ^= self::rotate($x2 + $x1, 13); + $x0 ^= self::rotate($x3 + $x2, 18); + $x6 ^= self::rotate($x5 + $x4, 7); + $x7 ^= self::rotate($x6 + $x5, 9); + $x4 ^= self::rotate($x7 + $x6, 13); + $x5 ^= self::rotate($x4 + $x7, 18); + $x11 ^= self::rotate($x10 + $x9, 7); + $x8 ^= self::rotate($x11 + $x10, 9); + $x9 ^= self::rotate($x8 + $x11, 13); + $x10 ^= self::rotate($x9 + $x8, 18); + $x12 ^= self::rotate($x15 + $x14, 7); + $x13 ^= self::rotate($x12 + $x15, 9); + $x14 ^= self::rotate($x13 + $x12, 13); + $x15 ^= self::rotate($x14 + $x13, 18); + } + + return self::store32_le($x0) . + self::store32_le($x5) . + self::store32_le($x10) . + self::store32_le($x15) . + self::store32_le($x6) . + self::store32_le($x7) . + self::store32_le($x8) . + self::store32_le($x9); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Poly1305.php b/vendor/paragonie/sodium_compat/src/Core/Poly1305.php new file mode 100644 index 0000000..3301821 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Poly1305.php @@ -0,0 +1,63 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Poly1305', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Poly1305 + */ +abstract class ParagonIE_Sodium_Core_Poly1305 extends ParagonIE_Sodium_Core_Util +{ + const BLOCK_SIZE = 16; + + /** + * @internal You should not use this directly from another application + * + * @param string $m + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function onetimeauth($m, $key) + { + if (self::strlen($key) < 32) { + throw new InvalidArgumentException( + 'Key must be 32 bytes long.' + ); + } + $state = new ParagonIE_Sodium_Core_Poly1305_State( + self::substr($key, 0, 32) + ); + return $state + ->update($m) + ->finish(); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $mac + * @param string $m + * @param string $key + * @return bool + * @throws SodiumException + * @throws TypeError + */ + public static function onetimeauth_verify($mac, $m, $key) + { + if (self::strlen($key) < 32) { + throw new InvalidArgumentException( + 'Key must be 32 bytes long.' + ); + } + $state = new ParagonIE_Sodium_Core_Poly1305_State( + self::substr($key, 0, 32) + ); + $calc = $state + ->update($m) + ->finish(); + return self::verify_16($calc, $mac); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php b/vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php new file mode 100644 index 0000000..4b64e04 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Poly1305/State.php @@ -0,0 +1,445 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Poly1305_State', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Poly1305_State + */ +class ParagonIE_Sodium_Core_Poly1305_State extends ParagonIE_Sodium_Core_Util +{ + /** + * @var array<int, int> + */ + protected $buffer = array(); + + /** + * @var bool + */ + protected $final = false; + + /** + * @var array<int, int> + */ + public $h; + + /** + * @var int + */ + protected $leftover = 0; + + /** + * @var int[] + */ + public $r; + + /** + * @var int[] + */ + public $pad; + + /** + * ParagonIE_Sodium_Core_Poly1305_State constructor. + * + * @internal You should not use this directly from another application + * + * @param string $key + * @throws InvalidArgumentException + * @throws TypeError + */ + public function __construct($key = '') + { + if (self::strlen($key) < 32) { + throw new InvalidArgumentException( + 'Poly1305 requires a 32-byte key' + ); + } + /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */ + $this->r = array( + (int) ((self::load_4(self::substr($key, 0, 4))) & 0x3ffffff), + (int) ((self::load_4(self::substr($key, 3, 4)) >> 2) & 0x3ffff03), + (int) ((self::load_4(self::substr($key, 6, 4)) >> 4) & 0x3ffc0ff), + (int) ((self::load_4(self::substr($key, 9, 4)) >> 6) & 0x3f03fff), + (int) ((self::load_4(self::substr($key, 12, 4)) >> 8) & 0x00fffff) + ); + + /* h = 0 */ + $this->h = array(0, 0, 0, 0, 0); + + /* save pad for later */ + $this->pad = array( + self::load_4(self::substr($key, 16, 4)), + self::load_4(self::substr($key, 20, 4)), + self::load_4(self::substr($key, 24, 4)), + self::load_4(self::substr($key, 28, 4)), + ); + + $this->leftover = 0; + $this->final = false; + } + + /** + * Zero internal buffer upon destruction + */ + public function __destruct() + { + $this->r[0] ^= $this->r[0]; + $this->r[1] ^= $this->r[1]; + $this->r[2] ^= $this->r[2]; + $this->r[3] ^= $this->r[3]; + $this->r[4] ^= $this->r[4]; + $this->h[0] ^= $this->h[0]; + $this->h[1] ^= $this->h[1]; + $this->h[2] ^= $this->h[2]; + $this->h[3] ^= $this->h[3]; + $this->h[4] ^= $this->h[4]; + $this->pad[0] ^= $this->pad[0]; + $this->pad[1] ^= $this->pad[1]; + $this->pad[2] ^= $this->pad[2]; + $this->pad[3] ^= $this->pad[3]; + $this->leftover = 0; + $this->final = true; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @return self + * @throws SodiumException + * @throws TypeError + */ + public function update($message = '') + { + $bytes = self::strlen($message); + if ($bytes < 1) { + return $this; + } + + /* handle leftover */ + if ($this->leftover) { + $want = ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE - $this->leftover; + if ($want > $bytes) { + $want = $bytes; + } + for ($i = 0; $i < $want; ++$i) { + $mi = self::chrToInt($message[$i]); + $this->buffer[$this->leftover + $i] = $mi; + } + // We snip off the leftmost bytes. + $message = self::substr($message, $want); + $bytes = self::strlen($message); + $this->leftover += $want; + if ($this->leftover < ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { + // We still don't have enough to run $this->blocks() + return $this; + } + + $this->blocks( + self::intArrayToString($this->buffer), + ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE + ); + $this->leftover = 0; + } + + /* process full blocks */ + if ($bytes >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { + /** @var int $want */ + $want = $bytes & ~(ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE - 1); + if ($want >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { + $block = self::substr($message, 0, $want); + if (self::strlen($block) >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { + $this->blocks($block, $want); + $message = self::substr($message, $want); + $bytes = self::strlen($message); + } + } + } + + /* store leftover */ + if ($bytes) { + for ($i = 0; $i < $bytes; ++$i) { + $mi = self::chrToInt($message[$i]); + $this->buffer[$this->leftover + $i] = $mi; + } + $this->leftover = (int) $this->leftover + $bytes; + } + return $this; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param int $bytes + * @return self + * @throws TypeError + */ + public function blocks($message, $bytes) + { + if (self::strlen($message) < 16) { + $message = str_pad($message, 16, "\x00", STR_PAD_RIGHT); + } + /** @var int $hibit */ + $hibit = $this->final ? 0 : 1 << 24; /* 1 << 128 */ + $r0 = (int) $this->r[0]; + $r1 = (int) $this->r[1]; + $r2 = (int) $this->r[2]; + $r3 = (int) $this->r[3]; + $r4 = (int) $this->r[4]; + + $s1 = self::mul($r1, 5, 3); + $s2 = self::mul($r2, 5, 3); + $s3 = self::mul($r3, 5, 3); + $s4 = self::mul($r4, 5, 3); + + $h0 = $this->h[0]; + $h1 = $this->h[1]; + $h2 = $this->h[2]; + $h3 = $this->h[3]; + $h4 = $this->h[4]; + + while ($bytes >= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE) { + /* h += m[i] */ + $h0 += self::load_4(self::substr($message, 0, 4)) & 0x3ffffff; + $h1 += (self::load_4(self::substr($message, 3, 4)) >> 2) & 0x3ffffff; + $h2 += (self::load_4(self::substr($message, 6, 4)) >> 4) & 0x3ffffff; + $h3 += (self::load_4(self::substr($message, 9, 4)) >> 6) & 0x3ffffff; + $h4 += (self::load_4(self::substr($message, 12, 4)) >> 8) | $hibit; + + /* 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) + ); + + $d1 = ( + self::mul($h0, $r1, 25) + + self::mul($h1, $r0, 25) + + self::mul($s4, $h2, 26) + + self::mul($s3, $h3, 26) + + self::mul($s2, $h4, 26) + ); + + $d2 = ( + self::mul($h0, $r2, 25) + + self::mul($h1, $r1, 25) + + self::mul($h2, $r0, 25) + + self::mul($s4, $h3, 26) + + self::mul($s3, $h4, 26) + ); + + $d3 = ( + self::mul($h0, $r3, 25) + + self::mul($h1, $r2, 25) + + self::mul($h2, $r1, 25) + + self::mul($h3, $r0, 25) + + self::mul($s4, $h4, 26) + ); + + $d4 = ( + self::mul($h0, $r4, 25) + + self::mul($h1, $r3, 25) + + self::mul($h2, $r2, 25) + + self::mul($h3, $r1, 25) + + self::mul($h4, $r0, 25) + ); + + /* (partial) h %= p */ + /** @var int $c */ + $c = $d0 >> 26; + /** @var int $h0 */ + $h0 = $d0 & 0x3ffffff; + $d1 += $c; + + /** @var int $c */ + $c = $d1 >> 26; + /** @var int $h1 */ + $h1 = $d1 & 0x3ffffff; + $d2 += $c; + + /** @var int $c */ + $c = $d2 >> 26; + /** @var int $h2 */ + $h2 = $d2 & 0x3ffffff; + $d3 += $c; + + /** @var int $c */ + $c = $d3 >> 26; + /** @var int $h3 */ + $h3 = $d3 & 0x3ffffff; + $d4 += $c; + + /** @var int $c */ + $c = $d4 >> 26; + /** @var int $h4 */ + $h4 = $d4 & 0x3ffffff; + $h0 += (int) self::mul($c, 5, 3); + + /** @var int $c */ + $c = $h0 >> 26; + /** @var int $h0 */ + $h0 &= 0x3ffffff; + $h1 += $c; + + // Chop off the left 32 bytes. + $message = self::substr( + $message, + ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE + ); + $bytes -= ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE; + } + + $this->h = array( + (int) ($h0 & 0xffffffff), + (int) ($h1 & 0xffffffff), + (int) ($h2 & 0xffffffff), + (int) ($h3 & 0xffffffff), + (int) ($h4 & 0xffffffff) + ); + return $this; + } + + /** + * @internal You should not use this directly from another application + * + * @return string + * @throws TypeError + */ + public function finish() + { + /* process the remaining block */ + if ($this->leftover) { + $i = $this->leftover; + $this->buffer[$i++] = 1; + for (; $i < ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE; ++$i) { + $this->buffer[$i] = 0; + } + $this->final = true; + $this->blocks( + self::substr( + self::intArrayToString($this->buffer), + 0, + ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE + ), + ParagonIE_Sodium_Core_Poly1305::BLOCK_SIZE + ); + } + + $h0 = (int) $this->h[0]; + $h1 = (int) $this->h[1]; + $h2 = (int) $this->h[2]; + $h3 = (int) $this->h[3]; + $h4 = (int) $this->h[4]; + + /** @var int $c */ + $c = $h1 >> 26; + /** @var int $h1 */ + $h1 &= 0x3ffffff; + /** @var int $h2 */ + $h2 += $c; + /** @var int $c */ + $c = $h2 >> 26; + /** @var int $h2 */ + $h2 &= 0x3ffffff; + $h3 += $c; + /** @var int $c */ + $c = $h3 >> 26; + $h3 &= 0x3ffffff; + $h4 += $c; + /** @var int $c */ + $c = $h4 >> 26; + $h4 &= 0x3ffffff; + /** @var int $h0 */ + $h0 += self::mul($c, 5, 3); + /** @var int $c */ + $c = $h0 >> 26; + /** @var int $h0 */ + $h0 &= 0x3ffffff; + /** @var int $h1 */ + $h1 += $c; + + /* compute h + -p */ + /** @var int $g0 */ + $g0 = $h0 + 5; + /** @var int $c */ + $c = $g0 >> 26; + /** @var int $g0 */ + $g0 &= 0x3ffffff; + + /** @var int $g1 */ + $g1 = $h1 + $c; + /** @var int $c */ + $c = $g1 >> 26; + $g1 &= 0x3ffffff; + + /** @var int $g2 */ + $g2 = $h2 + $c; + /** @var int $c */ + $c = $g2 >> 26; + /** @var int $g2 */ + $g2 &= 0x3ffffff; + + /** @var int $g3 */ + $g3 = $h3 + $c; + /** @var int $c */ + $c = $g3 >> 26; + /** @var int $g3 */ + $g3 &= 0x3ffffff; + + /** @var int $g4 */ + $g4 = ($h4 + $c - (1 << 26)) & 0xffffffff; + + /* select h if h < p, or h + -p if h >= p */ + /** @var int $mask */ + $mask = ($g4 >> 31) - 1; + + $g0 &= $mask; + $g1 &= $mask; + $g2 &= $mask; + $g3 &= $mask; + $g4 &= $mask; + + /** @var int $mask */ + $mask = ~$mask & 0xffffffff; + /** @var int $h0 */ + $h0 = ($h0 & $mask) | $g0; + /** @var int $h1 */ + $h1 = ($h1 & $mask) | $g1; + /** @var int $h2 */ + $h2 = ($h2 & $mask) | $g2; + /** @var int $h3 */ + $h3 = ($h3 & $mask) | $g3; + /** @var int $h4 */ + $h4 = ($h4 & $mask) | $g4; + + /* h = h % (2^128) */ + /** @var int $h0 */ + $h0 = (($h0) | ($h1 << 26)) & 0xffffffff; + /** @var int $h1 */ + $h1 = (($h1 >> 6) | ($h2 << 20)) & 0xffffffff; + /** @var int $h2 */ + $h2 = (($h2 >> 12) | ($h3 << 14)) & 0xffffffff; + /** @var int $h3 */ + $h3 = (($h3 >> 18) | ($h4 << 8)) & 0xffffffff; + + /* mac = (h + pad) % (2^128) */ + $f = (int) ($h0 + $this->pad[0]); + $h0 = (int) $f; + $f = (int) ($h1 + $this->pad[1] + ($f >> 32)); + $h1 = (int) $f; + $f = (int) ($h2 + $this->pad[2] + ($f >> 32)); + $h2 = (int) $f; + $f = (int) ($h3 + $this->pad[3] + ($f >> 32)); + $h3 = (int) $f; + + return self::store32_le($h0 & 0xffffffff) . + self::store32_le($h1 & 0xffffffff) . + self::store32_le($h2 & 0xffffffff) . + self::store32_le($h3 & 0xffffffff); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/Ristretto255.php b/vendor/paragonie/sodium_compat/src/Core/Ristretto255.php new file mode 100644 index 0000000..27dbbaa --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Ristretto255.php @@ -0,0 +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;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Salsa20.php b/vendor/paragonie/sodium_compat/src/Core/Salsa20.php new file mode 100644 index 0000000..515ccad --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Salsa20.php @@ -0,0 +1,273 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_Salsa20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Salsa20 + */ +abstract class ParagonIE_Sodium_Core_Salsa20 extends ParagonIE_Sodium_Core_Util +{ + const ROUNDS = 20; + + /** + * Calculate an salsa20 hash of a single block + * + * @internal You should not use this directly from another application + * + * @param string $in + * @param string $k + * @param string|null $c + * @return string + * @throws TypeError + */ + public static function core_salsa20($in, $k, $c = null) + { + if (self::strlen($k) < 32) { + throw new RangeException('Key must be 32 bytes long'); + } + if ($c === null) { + $j0 = $x0 = 0x61707865; + $j5 = $x5 = 0x3320646e; + $j10 = $x10 = 0x79622d32; + $j15 = $x15 = 0x6b206574; + } else { + $j0 = $x0 = self::load_4(self::substr($c, 0, 4)); + $j5 = $x5 = self::load_4(self::substr($c, 4, 4)); + $j10 = $x10 = self::load_4(self::substr($c, 8, 4)); + $j15 = $x15 = self::load_4(self::substr($c, 12, 4)); + } + $j1 = $x1 = self::load_4(self::substr($k, 0, 4)); + $j2 = $x2 = self::load_4(self::substr($k, 4, 4)); + $j3 = $x3 = self::load_4(self::substr($k, 8, 4)); + $j4 = $x4 = self::load_4(self::substr($k, 12, 4)); + $j6 = $x6 = self::load_4(self::substr($in, 0, 4)); + $j7 = $x7 = self::load_4(self::substr($in, 4, 4)); + $j8 = $x8 = self::load_4(self::substr($in, 8, 4)); + $j9 = $x9 = self::load_4(self::substr($in, 12, 4)); + $j11 = $x11 = self::load_4(self::substr($k, 16, 4)); + $j12 = $x12 = self::load_4(self::substr($k, 20, 4)); + $j13 = $x13 = self::load_4(self::substr($k, 24, 4)); + $j14 = $x14 = self::load_4(self::substr($k, 28, 4)); + + for ($i = self::ROUNDS; $i > 0; $i -= 2) { + $x4 ^= self::rotate($x0 + $x12, 7); + $x8 ^= self::rotate($x4 + $x0, 9); + $x12 ^= self::rotate($x8 + $x4, 13); + $x0 ^= self::rotate($x12 + $x8, 18); + + $x9 ^= self::rotate($x5 + $x1, 7); + $x13 ^= self::rotate($x9 + $x5, 9); + $x1 ^= self::rotate($x13 + $x9, 13); + $x5 ^= self::rotate($x1 + $x13, 18); + + $x14 ^= self::rotate($x10 + $x6, 7); + $x2 ^= self::rotate($x14 + $x10, 9); + $x6 ^= self::rotate($x2 + $x14, 13); + $x10 ^= self::rotate($x6 + $x2, 18); + + $x3 ^= self::rotate($x15 + $x11, 7); + $x7 ^= self::rotate($x3 + $x15, 9); + $x11 ^= self::rotate($x7 + $x3, 13); + $x15 ^= self::rotate($x11 + $x7, 18); + + $x1 ^= self::rotate($x0 + $x3, 7); + $x2 ^= self::rotate($x1 + $x0, 9); + $x3 ^= self::rotate($x2 + $x1, 13); + $x0 ^= self::rotate($x3 + $x2, 18); + + $x6 ^= self::rotate($x5 + $x4, 7); + $x7 ^= self::rotate($x6 + $x5, 9); + $x4 ^= self::rotate($x7 + $x6, 13); + $x5 ^= self::rotate($x4 + $x7, 18); + + $x11 ^= self::rotate($x10 + $x9, 7); + $x8 ^= self::rotate($x11 + $x10, 9); + $x9 ^= self::rotate($x8 + $x11, 13); + $x10 ^= self::rotate($x9 + $x8, 18); + + $x12 ^= self::rotate($x15 + $x14, 7); + $x13 ^= self::rotate($x12 + $x15, 9); + $x14 ^= self::rotate($x13 + $x12, 13); + $x15 ^= self::rotate($x14 + $x13, 18); + } + + $x0 += $j0; + $x1 += $j1; + $x2 += $j2; + $x3 += $j3; + $x4 += $j4; + $x5 += $j5; + $x6 += $j6; + $x7 += $j7; + $x8 += $j8; + $x9 += $j9; + $x10 += $j10; + $x11 += $j11; + $x12 += $j12; + $x13 += $j13; + $x14 += $j14; + $x15 += $j15; + + return self::store32_le($x0) . + self::store32_le($x1) . + self::store32_le($x2) . + self::store32_le($x3) . + self::store32_le($x4) . + self::store32_le($x5) . + self::store32_le($x6) . + self::store32_le($x7) . + self::store32_le($x8) . + self::store32_le($x9) . + self::store32_le($x10) . + self::store32_le($x11) . + self::store32_le($x12) . + self::store32_le($x13) . + self::store32_le($x14) . + self::store32_le($x15); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function salsa20($len, $nonce, $key) + { + if (self::strlen($key) !== 32) { + throw new RangeException('Key must be 32 bytes long'); + } + $kcopy = '' . $key; + $in = self::substr($nonce, 0, 8) . str_repeat("\0", 8); + $c = ''; + while ($len >= 64) { + $c .= self::core_salsa20($in, $kcopy, null); + $u = 1; + // Internal counter. + for ($i = 8; $i < 16; ++$i) { + $u += self::chrToInt($in[$i]); + $in[$i] = self::intToChr($u & 0xff); + $u >>= 8; + } + $len -= 64; + } + if ($len > 0) { + $c .= self::substr( + self::core_salsa20($in, $kcopy, null), + 0, + $len + ); + } + try { + ParagonIE_Sodium_Compat::memzero($kcopy); + } catch (SodiumException $ex) { + $kcopy = null; + } + return $c; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $m + * @param string $n + * @param int $ic + * @param string $k + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function salsa20_xor_ic($m, $n, $ic, $k) + { + $mlen = self::strlen($m); + if ($mlen < 1) { + return ''; + } + $kcopy = self::substr($k, 0, 32); + $in = self::substr($n, 0, 8); + // Initialize the counter + $in .= ParagonIE_Sodium_Core_Util::store64_le($ic); + + $c = ''; + while ($mlen >= 64) { + $block = self::core_salsa20($in, $kcopy, null); + $c .= self::xorStrings( + self::substr($m, 0, 64), + self::substr($block, 0, 64) + ); + $u = 1; + for ($i = 8; $i < 16; ++$i) { + $u += self::chrToInt($in[$i]); + $in[$i] = self::intToChr($u & 0xff); + $u >>= 8; + } + + $mlen -= 64; + $m = self::substr($m, 64); + } + + if ($mlen) { + $block = self::core_salsa20($in, $kcopy, null); + $c .= self::xorStrings( + self::substr($m, 0, $mlen), + self::substr($block, 0, $mlen) + ); + } + try { + ParagonIE_Sodium_Compat::memzero($block); + ParagonIE_Sodium_Compat::memzero($kcopy); + } catch (SodiumException $ex) { + $block = null; + $kcopy = null; + } + + return $c; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function salsa20_xor($message, $nonce, $key) + { + return self::xorStrings( + $message, + self::salsa20( + self::strlen($message), + $nonce, + $key + ) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $u + * @param int $c + * @return int + */ + public static function rotate($u, $c) + { + $u &= 0xffffffff; + $c %= 32; + return (int) (0xffffffff & ( + ($u << $c) + | + ($u >> (32 - $c)) + ) + ); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/SecretStream/State.php b/vendor/paragonie/sodium_compat/src/Core/SecretStream/State.php new file mode 100644 index 0000000..2412f65 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/SecretStream/State.php @@ -0,0 +1,163 @@ +<?php + +/** + * Class ParagonIE_Sodium_Core_SecretStream_State + */ +class ParagonIE_Sodium_Core_SecretStream_State +{ + /** @var string $key */ + protected $key; + + /** @var int $counter */ + protected $counter; + + /** @var string $nonce */ + protected $nonce; + + /** @var string $_pad */ + protected $_pad; + + /** + * ParagonIE_Sodium_Core_SecretStream_State constructor. + * @param string $key + * @param string|null $nonce + */ + public function __construct($key, $nonce = null) + { + $this->key = $key; + $this->counter = 1; + if (is_null($nonce)) { + $nonce = str_repeat("\0", 12); + } + $this->nonce = str_pad($nonce, 12, "\0", STR_PAD_RIGHT);; + $this->_pad = str_repeat("\0", 4); + } + + /** + * @return self + */ + public function counterReset() + { + $this->counter = 1; + $this->_pad = str_repeat("\0", 4); + return $this; + } + + /** + * @return string + */ + public function getKey() + { + return $this->key; + } + + /** + * @return string + */ + public function getCounter() + { + return ParagonIE_Sodium_Core_Util::store32_le($this->counter); + } + + /** + * @return string + */ + public function getNonce() + { + if (!is_string($this->nonce)) { + $this->nonce = str_repeat("\0", 12); + } + if (ParagonIE_Sodium_Core_Util::strlen($this->nonce) !== 12) { + $this->nonce = str_pad($this->nonce, 12, "\0", STR_PAD_RIGHT); + } + return $this->nonce; + } + + /** + * @return string + */ + public function getCombinedNonce() + { + return $this->getCounter() . + ParagonIE_Sodium_Core_Util::substr($this->getNonce(), 0, 8); + } + + /** + * @return self + */ + public function incrementCounter() + { + ++$this->counter; + return $this; + } + + /** + * @return bool + */ + public function needsRekey() + { + return ($this->counter & 0xffff) === 0; + } + + /** + * @param string $newKeyAndNonce + * @return self + */ + public function rekey($newKeyAndNonce) + { + $this->key = ParagonIE_Sodium_Core_Util::substr($newKeyAndNonce, 0, 32); + $this->nonce = str_pad( + ParagonIE_Sodium_Core_Util::substr($newKeyAndNonce, 32), + 12, + "\0", + STR_PAD_RIGHT + ); + return $this; + } + + /** + * @param string $str + * @return self + */ + public function xorNonce($str) + { + $this->nonce = ParagonIE_Sodium_Core_Util::xorStrings( + $this->getNonce(), + str_pad( + ParagonIE_Sodium_Core_Util::substr($str, 0, 8), + 12, + "\0", + STR_PAD_RIGHT + ) + ); + return $this; + } + + /** + * @param string $string + * @return self + */ + public static function fromString($string) + { + $state = new ParagonIE_Sodium_Core_SecretStream_State( + ParagonIE_Sodium_Core_Util::substr($string, 0, 32) + ); + $state->counter = ParagonIE_Sodium_Core_Util::load_4( + ParagonIE_Sodium_Core_Util::substr($string, 32, 4) + ); + $state->nonce = ParagonIE_Sodium_Core_Util::substr($string, 36, 12); + $state->_pad = ParagonIE_Sodium_Core_Util::substr($string, 48, 8); + return $state; + } + + /** + * @return string + */ + public function toString() + { + return $this->key . + $this->getCounter() . + $this->nonce . + $this->_pad; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/SipHash.php b/vendor/paragonie/sodium_compat/src/Core/SipHash.php new file mode 100644 index 0000000..7667527 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/SipHash.php @@ -0,0 +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]);
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/Util.php b/vendor/paragonie/sodium_compat/src/Core/Util.php new file mode 100644 index 0000000..865f544 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/Util.php @@ -0,0 +1,942 @@ +<?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;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core/X25519.php b/vendor/paragonie/sodium_compat/src/Core/X25519.php new file mode 100644 index 0000000..732bb65 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/X25519.php @@ -0,0 +1,327 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_X25519', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_X25519 + */ +abstract class ParagonIE_Sodium_Core_X25519 extends ParagonIE_Sodium_Core_Curve25519 +{ + /** + * Alters the objects passed to this method in place. + * + * @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 void + * @psalm-suppress MixedAssignment + */ + public static function fe_cswap( + ParagonIE_Sodium_Core_Curve25519_Fe $f, + ParagonIE_Sodium_Core_Curve25519_Fe $g, + $b = 0 + ) { + $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]; + $g0 = (int) $g[0]; + $g1 = (int) $g[1]; + $g2 = (int) $g[2]; + $g3 = (int) $g[3]; + $g4 = (int) $g[4]; + $g5 = (int) $g[5]; + $g6 = (int) $g[6]; + $g7 = (int) $g[7]; + $g8 = (int) $g[8]; + $g9 = (int) $g[9]; + $b = -$b; + $x0 = ($f0 ^ $g0) & $b; + $x1 = ($f1 ^ $g1) & $b; + $x2 = ($f2 ^ $g2) & $b; + $x3 = ($f3 ^ $g3) & $b; + $x4 = ($f4 ^ $g4) & $b; + $x5 = ($f5 ^ $g5) & $b; + $x6 = ($f6 ^ $g6) & $b; + $x7 = ($f7 ^ $g7) & $b; + $x8 = ($f8 ^ $g8) & $b; + $x9 = ($f9 ^ $g9) & $b; + $f[0] = $f0 ^ $x0; + $f[1] = $f1 ^ $x1; + $f[2] = $f2 ^ $x2; + $f[3] = $f3 ^ $x3; + $f[4] = $f4 ^ $x4; + $f[5] = $f5 ^ $x5; + $f[6] = $f6 ^ $x6; + $f[7] = $f7 ^ $x7; + $f[8] = $f8 ^ $x8; + $f[9] = $f9 ^ $x9; + $g[0] = $g0 ^ $x0; + $g[1] = $g1 ^ $x1; + $g[2] = $g2 ^ $x2; + $g[3] = $g3 ^ $x3; + $g[4] = $g4 ^ $x4; + $g[5] = $g5 ^ $x5; + $g[6] = $g6 ^ $x6; + $g[7] = $g7 ^ $x7; + $g[8] = $g8 ^ $x8; + $g[9] = $g9 ^ $x9; + } + + /** + * @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_mul121666(ParagonIE_Sodium_Core_Curve25519_Fe $f) + { + $h = array( + self::mul((int) $f[0], 121666, 17), + self::mul((int) $f[1], 121666, 17), + self::mul((int) $f[2], 121666, 17), + self::mul((int) $f[3], 121666, 17), + self::mul((int) $f[4], 121666, 17), + self::mul((int) $f[5], 121666, 17), + self::mul((int) $f[6], 121666, 17), + self::mul((int) $f[7], 121666, 17), + self::mul((int) $f[8], 121666, 17), + self::mul((int) $f[9], 121666, 17) + ); + + /** @var int $carry9 */ + $carry9 = ($h[9] + (1 << 24)) >> 25; + $h[0] += self::mul($carry9, 19, 5); + $h[9] -= $carry9 << 25; + /** @var int $carry1 */ + $carry1 = ($h[1] + (1 << 24)) >> 25; + $h[2] += $carry1; + $h[1] -= $carry1 << 25; + /** @var int $carry3 */ + $carry3 = ($h[3] + (1 << 24)) >> 25; + $h[4] += $carry3; + $h[3] -= $carry3 << 25; + /** @var int $carry5 */ + $carry5 = ($h[5] + (1 << 24)) >> 25; + $h[6] += $carry5; + $h[5] -= $carry5 << 25; + /** @var int $carry7 */ + $carry7 = ($h[7] + (1 << 24)) >> 25; + $h[8] += $carry7; + $h[7] -= $carry7 << 25; + + /** @var int $carry0 */ + $carry0 = ($h[0] + (1 << 25)) >> 26; + $h[1] += $carry0; + $h[0] -= $carry0 << 26; + /** @var int $carry2 */ + $carry2 = ($h[2] + (1 << 25)) >> 26; + $h[3] += $carry2; + $h[2] -= $carry2 << 26; + /** @var int $carry4 */ + $carry4 = ($h[4] + (1 << 25)) >> 26; + $h[5] += $carry4; + $h[4] -= $carry4 << 26; + /** @var int $carry6 */ + $carry6 = ($h[6] + (1 << 25)) >> 26; + $h[7] += $carry6; + $h[6] -= $carry6 << 26; + /** @var int $carry8 */ + $carry8 = ($h[8] + (1 << 25)) >> 26; + $h[9] += $carry8; + $h[8] -= $carry8 << 26; + + foreach ($h as $i => $value) { + $h[$i] = (int) $value; + } + return ParagonIE_Sodium_Core_Curve25519_Fe::fromArray($h); + } + + /** + * @internal You should not use this directly from another application + * + * Inline comments preceded by # are from libsodium's ref10 code. + * + * @param string $n + * @param string $p + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function crypto_scalarmult_curve25519_ref10($n, $p) + { + # for (i = 0;i < 32;++i) e[i] = n[i]; + $e = '' . $n; + # e[0] &= 248; + $e[0] = self::intToChr( + self::chrToInt($e[0]) & 248 + ); + # e[31] &= 127; + # e[31] |= 64; + $e[31] = self::intToChr( + (self::chrToInt($e[31]) & 127) | 64 + ); + # fe_frombytes(x1,p); + $x1 = self::fe_frombytes($p); + # fe_1(x2); + $x2 = self::fe_1(); + # fe_0(z2); + $z2 = self::fe_0(); + # fe_copy(x3,x1); + $x3 = self::fe_copy($x1); + # fe_1(z3); + $z3 = self::fe_1(); + + # swap = 0; + /** @var int $swap */ + $swap = 0; + + # for (pos = 254;pos >= 0;--pos) { + for ($pos = 254; $pos >= 0; --$pos) { + # b = e[pos / 8] >> (pos & 7); + /** @var int $b */ + $b = self::chrToInt( + $e[(int) floor($pos / 8)] + ) >> ($pos & 7); + # b &= 1; + $b &= 1; + # swap ^= b; + $swap ^= $b; + # fe_cswap(x2,x3,swap); + self::fe_cswap($x2, $x3, $swap); + # fe_cswap(z2,z3,swap); + self::fe_cswap($z2, $z3, $swap); + # swap = b; + $swap = $b; + # fe_sub(tmp0,x3,z3); + $tmp0 = self::fe_sub($x3, $z3); + # fe_sub(tmp1,x2,z2); + $tmp1 = self::fe_sub($x2, $z2); + + # fe_add(x2,x2,z2); + $x2 = self::fe_add($x2, $z2); + + # fe_add(z2,x3,z3); + $z2 = self::fe_add($x3, $z3); + + # fe_mul(z3,tmp0,x2); + $z3 = self::fe_mul($tmp0, $x2); + + # fe_mul(z2,z2,tmp1); + $z2 = self::fe_mul($z2, $tmp1); + + # fe_sq(tmp0,tmp1); + $tmp0 = self::fe_sq($tmp1); + + # fe_sq(tmp1,x2); + $tmp1 = self::fe_sq($x2); + + # fe_add(x3,z3,z2); + $x3 = self::fe_add($z3, $z2); + + # fe_sub(z2,z3,z2); + $z2 = self::fe_sub($z3, $z2); + + # fe_mul(x2,tmp1,tmp0); + $x2 = self::fe_mul($tmp1, $tmp0); + + # fe_sub(tmp1,tmp1,tmp0); + $tmp1 = self::fe_sub($tmp1, $tmp0); + + # fe_sq(z2,z2); + $z2 = self::fe_sq($z2); + + # fe_mul121666(z3,tmp1); + $z3 = self::fe_mul121666($tmp1); + + # fe_sq(x3,x3); + $x3 = self::fe_sq($x3); + + # fe_add(tmp0,tmp0,z3); + $tmp0 = self::fe_add($tmp0, $z3); + + # fe_mul(z3,x1,z2); + $z3 = self::fe_mul($x1, $z2); + + # fe_mul(z2,tmp1,tmp0); + $z2 = self::fe_mul($tmp1, $tmp0); + } + + # fe_cswap(x2,x3,swap); + self::fe_cswap($x2, $x3, $swap); + + # fe_cswap(z2,z3,swap); + self::fe_cswap($z2, $z3, $swap); + + # fe_invert(z2,z2); + $z2 = self::fe_invert($z2); + + # fe_mul(x2,x2,z2); + $x2 = self::fe_mul($x2, $z2); + # fe_tobytes(q,x2); + return self::fe_tobytes($x2); + } + + /** + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core_Curve25519_Fe $edwardsY + * @param ParagonIE_Sodium_Core_Curve25519_Fe $edwardsZ + * @return ParagonIE_Sodium_Core_Curve25519_Fe + */ + public static function edwards_to_montgomery( + ParagonIE_Sodium_Core_Curve25519_Fe $edwardsY, + ParagonIE_Sodium_Core_Curve25519_Fe $edwardsZ + ) { + $tempX = self::fe_add($edwardsZ, $edwardsY); + $tempZ = self::fe_sub($edwardsZ, $edwardsY); + $tempZ = self::fe_invert($tempZ); + return self::fe_mul($tempX, $tempZ); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $n + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function crypto_scalarmult_curve25519_ref10_base($n) + { + # for (i = 0;i < 32;++i) e[i] = n[i]; + $e = '' . $n; + + # e[0] &= 248; + $e[0] = self::intToChr( + self::chrToInt($e[0]) & 248 + ); + + # e[31] &= 127; + # e[31] |= 64; + $e[31] = self::intToChr( + (self::chrToInt($e[31]) & 127) | 64 + ); + + $A = self::ge_scalarmult_base($e); + if ( + !($A->Y instanceof ParagonIE_Sodium_Core_Curve25519_Fe) + || + !($A->Z instanceof ParagonIE_Sodium_Core_Curve25519_Fe) + ) { + throw new TypeError('Null points encountered'); + } + $pk = self::edwards_to_montgomery($A->Y, $A->Z); + return self::fe_tobytes($pk); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core/XChaCha20.php b/vendor/paragonie/sodium_compat/src/Core/XChaCha20.php new file mode 100644 index 0000000..39e717b --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/XChaCha20.php @@ -0,0 +1,117 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_XChaCha20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_XChaCha20 + */ +class ParagonIE_Sodium_Core_XChaCha20 extends ParagonIE_Sodium_Core_HChaCha20 +{ + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function stream($len = 64, $nonce = '', $key = '') + { + if (self::strlen($nonce) !== 24) { + throw new SodiumException('Nonce must be 24 bytes long'); + } + return self::encryptBytes( + new ParagonIE_Sodium_Core_ChaCha20_Ctx( + self::hChaCha20( + self::substr($nonce, 0, 16), + $key + ), + self::substr($nonce, 16, 8) + ), + str_repeat("\x00", $len) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function ietfStream($len = 64, $nonce = '', $key = '') + { + if (self::strlen($nonce) !== 24) { + throw new SodiumException('Nonce must be 24 bytes long'); + } + return self::encryptBytes( + new ParagonIE_Sodium_Core_ChaCha20_IetfCtx( + self::hChaCha20( + self::substr($nonce, 0, 16), + $key + ), + "\x00\x00\x00\x00" . self::substr($nonce, 16, 8) + ), + str_repeat("\x00", $len) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @param string $ic + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function streamXorIc($message, $nonce = '', $key = '', $ic = '') + { + if (self::strlen($nonce) !== 24) { + throw new SodiumException('Nonce must be 24 bytes long'); + } + return self::encryptBytes( + new ParagonIE_Sodium_Core_ChaCha20_Ctx( + self::hChaCha20(self::substr($nonce, 0, 16), $key), + self::substr($nonce, 16, 8), + $ic + ), + $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 = '', $ic = '') + { + if (self::strlen($nonce) !== 24) { + throw new SodiumException('Nonce must be 24 bytes long'); + } + return self::encryptBytes( + new ParagonIE_Sodium_Core_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/Core/XSalsa20.php b/vendor/paragonie/sodium_compat/src/Core/XSalsa20.php new file mode 100644 index 0000000..9ef989e --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core/XSalsa20.php @@ -0,0 +1,57 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_XSalsa20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_XSalsa20 + */ +abstract class ParagonIE_Sodium_Core_XSalsa20 extends ParagonIE_Sodium_Core_HSalsa20 +{ + /** + * Expand a key and nonce into an xsalsa20 keystream. + * + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function xsalsa20($len, $nonce, $key) + { + $ret = self::salsa20( + $len, + self::substr($nonce, 16, 8), + self::hsalsa20($nonce, $key) + ); + return $ret; + } + + /** + * Encrypt a string with XSalsa20. Doesn't provide integrity. + * + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function xsalsa20_xor($message, $nonce, $key) + { + return self::xorStrings( + $message, + self::xsalsa20( + self::strlen($message), + $nonce, + $key + ) + ); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php b/vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php new file mode 100644 index 0000000..cda1a2c --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/BLAKE2b.php @@ -0,0 +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;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core32/ChaCha20.php b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20.php new file mode 100644 index 0000000..6f8c0bf --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20.php @@ -0,0 +1,400 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_ChaCha20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_ChaCha20 + */ +class ParagonIE_Sodium_Core32_ChaCha20 extends ParagonIE_Sodium_Core32_Util +{ + /** + * The ChaCha20 quarter round function. Works on four 32-bit integers. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Int32 $a + * @param ParagonIE_Sodium_Core32_Int32 $b + * @param ParagonIE_Sodium_Core32_Int32 $c + * @param ParagonIE_Sodium_Core32_Int32 $d + * @return array<int, ParagonIE_Sodium_Core32_Int32> + * @throws SodiumException + * @throws TypeError + */ + protected static function quarterRound( + ParagonIE_Sodium_Core32_Int32 $a, + ParagonIE_Sodium_Core32_Int32 $b, + ParagonIE_Sodium_Core32_Int32 $c, + ParagonIE_Sodium_Core32_Int32 $d + ) { + /** @var ParagonIE_Sodium_Core32_Int32 $a */ + /** @var ParagonIE_Sodium_Core32_Int32 $b */ + /** @var ParagonIE_Sodium_Core32_Int32 $c */ + /** @var ParagonIE_Sodium_Core32_Int32 $d */ + + # a = PLUS(a,b); d = ROTATE(XOR(d,a),16); + $a = $a->addInt32($b); + $d = $d->xorInt32($a)->rotateLeft(16); + + # c = PLUS(c,d); b = ROTATE(XOR(b,c),12); + $c = $c->addInt32($d); + $b = $b->xorInt32($c)->rotateLeft(12); + + # a = PLUS(a,b); d = ROTATE(XOR(d,a), 8); + $a = $a->addInt32($b); + $d = $d->xorInt32($a)->rotateLeft(8); + + # c = PLUS(c,d); b = ROTATE(XOR(b,c), 7); + $c = $c->addInt32($d); + $b = $b->xorInt32($c)->rotateLeft(7); + + return array($a, $b, $c, $d); + } + + /** + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_ChaCha20_Ctx $ctx + * @param string $message + * + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function encryptBytes( + ParagonIE_Sodium_Core32_ChaCha20_Ctx $ctx, + $message = '' + ) { + $bytes = self::strlen($message); + + /** @var ParagonIE_Sodium_Core32_Int32 $x0 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x1 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x2 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x3 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x4 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x5 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x6 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x7 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x8 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x9 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x10 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x11 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x12 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x13 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x14 */ + /** @var ParagonIE_Sodium_Core32_Int32 $x15 */ + + /* + j0 = ctx->input[0]; + j1 = ctx->input[1]; + j2 = ctx->input[2]; + j3 = ctx->input[3]; + j4 = ctx->input[4]; + j5 = ctx->input[5]; + j6 = ctx->input[6]; + j7 = ctx->input[7]; + j8 = ctx->input[8]; + j9 = ctx->input[9]; + j10 = ctx->input[10]; + j11 = ctx->input[11]; + j12 = ctx->input[12]; + j13 = ctx->input[13]; + j14 = ctx->input[14]; + j15 = ctx->input[15]; + */ + /** @var ParagonIE_Sodium_Core32_Int32 $j0 */ + $j0 = $ctx[0]; + /** @var ParagonIE_Sodium_Core32_Int32 $j1 */ + $j1 = $ctx[1]; + /** @var ParagonIE_Sodium_Core32_Int32 $j2 */ + $j2 = $ctx[2]; + /** @var ParagonIE_Sodium_Core32_Int32 $j3 */ + $j3 = $ctx[3]; + /** @var ParagonIE_Sodium_Core32_Int32 $j4 */ + $j4 = $ctx[4]; + /** @var ParagonIE_Sodium_Core32_Int32 $j5 */ + $j5 = $ctx[5]; + /** @var ParagonIE_Sodium_Core32_Int32 $j6 */ + $j6 = $ctx[6]; + /** @var ParagonIE_Sodium_Core32_Int32 $j7 */ + $j7 = $ctx[7]; + /** @var ParagonIE_Sodium_Core32_Int32 $j8 */ + $j8 = $ctx[8]; + /** @var ParagonIE_Sodium_Core32_Int32 $j9 */ + $j9 = $ctx[9]; + /** @var ParagonIE_Sodium_Core32_Int32 $j10 */ + $j10 = $ctx[10]; + /** @var ParagonIE_Sodium_Core32_Int32 $j11 */ + $j11 = $ctx[11]; + /** @var ParagonIE_Sodium_Core32_Int32 $j12 */ + $j12 = $ctx[12]; + /** @var ParagonIE_Sodium_Core32_Int32 $j13 */ + $j13 = $ctx[13]; + /** @var ParagonIE_Sodium_Core32_Int32 $j14 */ + $j14 = $ctx[14]; + /** @var ParagonIE_Sodium_Core32_Int32 $j15 */ + $j15 = $ctx[15]; + + $c = ''; + for (;;) { + if ($bytes < 64) { + $message .= str_repeat("\x00", 64 - $bytes); + } + + $x0 = clone $j0; + $x1 = clone $j1; + $x2 = clone $j2; + $x3 = clone $j3; + $x4 = clone $j4; + $x5 = clone $j5; + $x6 = clone $j6; + $x7 = clone $j7; + $x8 = clone $j8; + $x9 = clone $j9; + $x10 = clone $j10; + $x11 = clone $j11; + $x12 = clone $j12; + $x13 = clone $j13; + $x14 = clone $j14; + $x15 = clone $j15; + + # for (i = 20; i > 0; i -= 2) { + for ($i = 20; $i > 0; $i -= 2) { + # QUARTERROUND( x0, x4, x8, x12) + list($x0, $x4, $x8, $x12) = self::quarterRound($x0, $x4, $x8, $x12); + + # QUARTERROUND( x1, x5, x9, x13) + list($x1, $x5, $x9, $x13) = self::quarterRound($x1, $x5, $x9, $x13); + + # QUARTERROUND( x2, x6, x10, x14) + list($x2, $x6, $x10, $x14) = self::quarterRound($x2, $x6, $x10, $x14); + + # QUARTERROUND( x3, x7, x11, x15) + list($x3, $x7, $x11, $x15) = self::quarterRound($x3, $x7, $x11, $x15); + + # QUARTERROUND( x0, x5, x10, x15) + list($x0, $x5, $x10, $x15) = self::quarterRound($x0, $x5, $x10, $x15); + + # QUARTERROUND( x1, x6, x11, x12) + list($x1, $x6, $x11, $x12) = self::quarterRound($x1, $x6, $x11, $x12); + + # QUARTERROUND( x2, x7, x8, x13) + list($x2, $x7, $x8, $x13) = self::quarterRound($x2, $x7, $x8, $x13); + + # QUARTERROUND( x3, x4, x9, x14) + list($x3, $x4, $x9, $x14) = self::quarterRound($x3, $x4, $x9, $x14); + } + /* + x0 = PLUS(x0, j0); + x1 = PLUS(x1, j1); + x2 = PLUS(x2, j2); + x3 = PLUS(x3, j3); + x4 = PLUS(x4, j4); + x5 = PLUS(x5, j5); + x6 = PLUS(x6, j6); + x7 = PLUS(x7, j7); + x8 = PLUS(x8, j8); + x9 = PLUS(x9, j9); + x10 = PLUS(x10, j10); + x11 = PLUS(x11, j11); + x12 = PLUS(x12, j12); + x13 = PLUS(x13, j13); + x14 = PLUS(x14, j14); + x15 = PLUS(x15, j15); + */ + $x0 = $x0->addInt32($j0); + $x1 = $x1->addInt32($j1); + $x2 = $x2->addInt32($j2); + $x3 = $x3->addInt32($j3); + $x4 = $x4->addInt32($j4); + $x5 = $x5->addInt32($j5); + $x6 = $x6->addInt32($j6); + $x7 = $x7->addInt32($j7); + $x8 = $x8->addInt32($j8); + $x9 = $x9->addInt32($j9); + $x10 = $x10->addInt32($j10); + $x11 = $x11->addInt32($j11); + $x12 = $x12->addInt32($j12); + $x13 = $x13->addInt32($j13); + $x14 = $x14->addInt32($j14); + $x15 = $x15->addInt32($j15); + + /* + x0 = XOR(x0, LOAD32_LE(m + 0)); + x1 = XOR(x1, LOAD32_LE(m + 4)); + x2 = XOR(x2, LOAD32_LE(m + 8)); + x3 = XOR(x3, LOAD32_LE(m + 12)); + x4 = XOR(x4, LOAD32_LE(m + 16)); + x5 = XOR(x5, LOAD32_LE(m + 20)); + x6 = XOR(x6, LOAD32_LE(m + 24)); + x7 = XOR(x7, LOAD32_LE(m + 28)); + x8 = XOR(x8, LOAD32_LE(m + 32)); + x9 = XOR(x9, LOAD32_LE(m + 36)); + x10 = XOR(x10, LOAD32_LE(m + 40)); + x11 = XOR(x11, LOAD32_LE(m + 44)); + x12 = XOR(x12, LOAD32_LE(m + 48)); + x13 = XOR(x13, LOAD32_LE(m + 52)); + x14 = XOR(x14, LOAD32_LE(m + 56)); + x15 = XOR(x15, LOAD32_LE(m + 60)); + */ + $x0 = $x0->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 0, 4))); + $x1 = $x1->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 4, 4))); + $x2 = $x2->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 8, 4))); + $x3 = $x3->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 12, 4))); + $x4 = $x4->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 16, 4))); + $x5 = $x5->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 20, 4))); + $x6 = $x6->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 24, 4))); + $x7 = $x7->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 28, 4))); + $x8 = $x8->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 32, 4))); + $x9 = $x9->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 36, 4))); + $x10 = $x10->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 40, 4))); + $x11 = $x11->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 44, 4))); + $x12 = $x12->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 48, 4))); + $x13 = $x13->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 52, 4))); + $x14 = $x14->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 56, 4))); + $x15 = $x15->xorInt32(ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 60, 4))); + + /* + j12 = PLUSONE(j12); + if (!j12) { + j13 = PLUSONE(j13); + } + */ + /** @var ParagonIE_Sodium_Core32_Int32 $j12 */ + $j12 = $j12->addInt(1); + if ($j12->limbs[0] === 0 && $j12->limbs[1] === 0) { + $j13 = $j13->addInt(1); + } + + /* + STORE32_LE(c + 0, x0); + STORE32_LE(c + 4, x1); + STORE32_LE(c + 8, x2); + STORE32_LE(c + 12, x3); + STORE32_LE(c + 16, x4); + STORE32_LE(c + 20, x5); + STORE32_LE(c + 24, x6); + STORE32_LE(c + 28, x7); + STORE32_LE(c + 32, x8); + STORE32_LE(c + 36, x9); + STORE32_LE(c + 40, x10); + STORE32_LE(c + 44, x11); + STORE32_LE(c + 48, x12); + STORE32_LE(c + 52, x13); + STORE32_LE(c + 56, x14); + STORE32_LE(c + 60, x15); + */ + + $block = $x0->toReverseString() . + $x1->toReverseString() . + $x2->toReverseString() . + $x3->toReverseString() . + $x4->toReverseString() . + $x5->toReverseString() . + $x6->toReverseString() . + $x7->toReverseString() . + $x8->toReverseString() . + $x9->toReverseString() . + $x10->toReverseString() . + $x11->toReverseString() . + $x12->toReverseString() . + $x13->toReverseString() . + $x14->toReverseString() . + $x15->toReverseString(); + + /* Partial block */ + if ($bytes < 64) { + $c .= self::substr($block, 0, $bytes); + break; + } + + /* Full block */ + $c .= $block; + $bytes -= 64; + if ($bytes <= 0) { + break; + } + $message = self::substr($message, 64); + } + /* end for(;;) loop */ + + $ctx[12] = $j12; + $ctx[13] = $j13; + return $c; + } + + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function stream($len = 64, $nonce = '', $key = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core32_ChaCha20_Ctx($key, $nonce), + str_repeat("\x00", $len) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function ietfStream($len, $nonce = '', $key = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core32_ChaCha20_IetfCtx($key, $nonce), + str_repeat("\x00", $len) + ); + } + + /** + * @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 = '', $ic = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core32_ChaCha20_IetfCtx($key, $nonce, $ic), + $message + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @param string $ic + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function streamXorIc($message, $nonce = '', $key = '', $ic = '') + { + return self::encryptBytes( + new ParagonIE_Sodium_Core32_ChaCha20_Ctx($key, $nonce, $ic), + $message + ); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php new file mode 100644 index 0000000..3f47d03 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/Ctx.php @@ -0,0 +1,126 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_ChaCha20_Ctx', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_ChaCha20_Ctx + */ +class ParagonIE_Sodium_Core32_ChaCha20_Ctx extends ParagonIE_Sodium_Core32_Util implements ArrayAccess +{ + /** + * @var SplFixedArray internally, <int, ParagonIE_Sodium_Core32_Int32> + */ + protected $container; + + /** + * ParagonIE_Sodium_Core_ChaCha20_Ctx constructor. + * + * @internal You should not use this directly from another application + * + * @param string $key ChaCha20 key. + * @param string $iv Initialization Vector (a.k.a. nonce). + * @param string $counter The initial counter value. + * Defaults to 8 0x00 bytes. + * @throws InvalidArgumentException + * @throws SodiumException + * @throws TypeError + */ + public function __construct($key = '', $iv = '', $counter = '') + { + if (self::strlen($key) !== 32) { + throw new InvalidArgumentException('ChaCha20 expects a 256-bit key.'); + } + if (self::strlen($iv) !== 8) { + throw new InvalidArgumentException('ChaCha20 expects a 64-bit nonce.'); + } + $this->container = new SplFixedArray(16); + + /* "expand 32-byte k" as per ChaCha20 spec */ + $this->container[0] = new ParagonIE_Sodium_Core32_Int32(array(0x6170, 0x7865)); + $this->container[1] = new ParagonIE_Sodium_Core32_Int32(array(0x3320, 0x646e)); + $this->container[2] = new ParagonIE_Sodium_Core32_Int32(array(0x7962, 0x2d32)); + $this->container[3] = new ParagonIE_Sodium_Core32_Int32(array(0x6b20, 0x6574)); + + $this->container[4] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 0, 4)); + $this->container[5] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 4, 4)); + $this->container[6] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 8, 4)); + $this->container[7] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 12, 4)); + $this->container[8] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 16, 4)); + $this->container[9] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 20, 4)); + $this->container[10] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 24, 4)); + $this->container[11] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 28, 4)); + + if (empty($counter)) { + $this->container[12] = new ParagonIE_Sodium_Core32_Int32(); + $this->container[13] = new ParagonIE_Sodium_Core32_Int32(); + } else { + $this->container[12] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($counter, 0, 4)); + $this->container[13] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($counter, 4, 4)); + } + $this->container[14] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 0, 4)); + $this->container[15] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 4, 4)); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @param int|ParagonIE_Sodium_Core32_Int32 $value + * @return void + */ + public function offsetSet($offset, $value) + { + if (!is_int($offset)) { + throw new InvalidArgumentException('Expected an integer'); + } + if ($value instanceof ParagonIE_Sodium_Core32_Int32) { + /* + } elseif (is_int($value)) { + $value = ParagonIE_Sodium_Core32_Int32::fromInt($value); + */ + } else { + throw new InvalidArgumentException('Expected an integer'); + } + $this->container[$offset] = $value; + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return bool + * @psalm-suppress MixedArrayOffset + */ + public function offsetExists($offset) + { + return isset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return void + * @psalm-suppress MixedArrayOffset + */ + public function offsetUnset($offset) + { + unset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $offset + * @return mixed|null + * @psalm-suppress MixedArrayOffset + */ + public function offsetGet($offset) + { + return isset($this->container[$offset]) + ? $this->container[$offset] + : null; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/IetfCtx.php b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/IetfCtx.php new file mode 100644 index 0000000..eea08de --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/ChaCha20/IetfCtx.php @@ -0,0 +1,39 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core_ChaCha20_IetfCtx', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_ChaCha20_IetfCtx + */ +class ParagonIE_Sodium_Core32_ChaCha20_IetfCtx extends ParagonIE_Sodium_Core32_ChaCha20_Ctx +{ + /** + * ParagonIE_Sodium_Core_ChaCha20_IetfCtx constructor. + * + * @internal You should not use this directly from another application + * + * @param string $key ChaCha20 key. + * @param string $iv Initialization Vector (a.k.a. nonce). + * @param string $counter The initial counter value. + * Defaults to 4 0x00 bytes. + * @throws InvalidArgumentException + * @throws SodiumException + * @throws TypeError + */ + public function __construct($key = '', $iv = '', $counter = '') + { + if (self::strlen($iv) !== 12) { + throw new InvalidArgumentException('ChaCha20 expects a 96-bit nonce in IETF mode.'); + } + parent::__construct($key, self::substr($iv, 0, 8), $counter); + + if (!empty($counter)) { + $this->container[12] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($counter, 0, 4)); + } + $this->container[13] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 0, 4)); + $this->container[14] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 4, 4)); + $this->container[15] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($iv, 8, 4)); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519.php new file mode 100644 index 0000000..d6d700e --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519.php @@ -0,0 +1,3196 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_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_Core32_Curve25519 extends ParagonIE_Sodium_Core32_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_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + */ + public static function fe_0() + { + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32() + ) + ); + } + + /** + * 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_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + */ + public static function fe_1() + { + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt(1), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32(), + new ParagonIE_Sodium_Core32_Int32() + ) + ); + } + + /** + * Add two field elements. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $f + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $g + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedAssignment + * @psalm-suppress MixedMethodCall + */ + public static function fe_add( + ParagonIE_Sodium_Core32_Curve25519_Fe $f, + ParagonIE_Sodium_Core32_Curve25519_Fe $g + ) { + $arr = array(); + for ($i = 0; $i < 10; ++$i) { + $arr[$i] = $f[$i]->addInt32($g[$i]); + } + /** @var array<int, ParagonIE_Sodium_Core32_Int32> $arr */ + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray($arr); + } + + /** + * Constant-time conditional move. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $f + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $g + * @param int $b + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedAssignment + * @psalm-suppress MixedMethodCall + */ + public static function fe_cmov( + ParagonIE_Sodium_Core32_Curve25519_Fe $f, + ParagonIE_Sodium_Core32_Curve25519_Fe $g, + $b = 0 + ) { + /** @var array<int, ParagonIE_Sodium_Core32_Int32> $h */ + $h = array(); + for ($i = 0; $i < 10; ++$i) { + if (!($f[$i] instanceof ParagonIE_Sodium_Core32_Int32)) { + throw new TypeError('Expected Int32'); + } + if (!($g[$i] instanceof ParagonIE_Sodium_Core32_Int32)) { + throw new TypeError('Expected Int32'); + } + $h[$i] = $f[$i]->xorInt32( + $f[$i]->xorInt32($g[$i])->mask($b) + ); + } + /** @var array<int, ParagonIE_Sodium_Core32_Int32> $h */ + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray($h); + } + + /** + * Create a copy of a field element. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $f + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public static function fe_copy(ParagonIE_Sodium_Core32_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 $s + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws RangeException + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedMethodCall + */ + public static function fe_frombytes($s) + { + if (self::strlen($s) !== 32) { + throw new RangeException('Expected a 32-byte string.'); + } + /** @var ParagonIE_Sodium_Core32_Int32 $h0 */ + $h0 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_4($s) + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h1 */ + $h1 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_3(self::substr($s, 4, 3)) << 6 + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h2 */ + $h2 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_3(self::substr($s, 7, 3)) << 5 + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h3 */ + $h3 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_3(self::substr($s, 10, 3)) << 3 + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h4 */ + $h4 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_3(self::substr($s, 13, 3)) << 2 + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h5 */ + $h5 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_4(self::substr($s, 16, 4)) + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h6 */ + $h6 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_3(self::substr($s, 20, 3)) << 7 + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h7 */ + $h7 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_3(self::substr($s, 23, 3)) << 5 + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h8 */ + $h8 = ParagonIE_Sodium_Core32_Int32::fromInt( + self::load_3(self::substr($s, 26, 3)) << 4 + ); + /** @var ParagonIE_Sodium_Core32_Int32 $h9 */ + $h9 = ParagonIE_Sodium_Core32_Int32::fromInt( + (self::load_3(self::substr($s, 29, 3)) & 8388607) << 2 + ); + + $carry9 = $h9->addInt(1 << 24)->shiftRight(25); + $h0 = $h0->addInt32($carry9->mulInt(19, 5)); + $h9 = $h9->subInt32($carry9->shiftLeft(25)); + + $carry1 = $h1->addInt(1 << 24)->shiftRight(25); + $h2 = $h2->addInt32($carry1); + $h1 = $h1->subInt32($carry1->shiftLeft(25)); + + $carry3 = $h3->addInt(1 << 24)->shiftRight(25); + $h4 = $h4->addInt32($carry3); + $h3 = $h3->subInt32($carry3->shiftLeft(25)); + + $carry5 = $h5->addInt(1 << 24)->shiftRight(25); + $h6 = $h6->addInt32($carry5); + $h5 = $h5->subInt32($carry5->shiftLeft(25)); + + $carry7 = $h7->addInt(1 << 24)->shiftRight(25); + $h8 = $h8->addInt32($carry7); + $h7 = $h7->subInt32($carry7->shiftLeft(25)); + + $carry0 = $h0->addInt(1 << 25)->shiftRight(26); + $h1 = $h1->addInt32($carry0); + $h0 = $h0->subInt32($carry0->shiftLeft(26)); + + $carry2 = $h2->addInt(1 << 25)->shiftRight(26); + $h3 = $h3->addInt32($carry2); + $h2 = $h2->subInt32($carry2->shiftLeft(26)); + + $carry4 = $h4->addInt(1 << 25)->shiftRight(26); + $h5 = $h5->addInt32($carry4); + $h4 = $h4->subInt32($carry4->shiftLeft(26)); + + $carry6 = $h6->addInt(1 << 25)->shiftRight(26); + $h7 = $h7->addInt32($carry6); + $h6 = $h6->subInt32($carry6->shiftLeft(26)); + + $carry8 = $h8->addInt(1 << 25)->shiftRight(26); + $h9 = $h9->addInt32($carry8); + $h8 = $h8->subInt32($carry8->shiftLeft(26)); + + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array($h0, $h1, $h2,$h3, $h4, $h5, $h6, $h7, $h8, $h9) + ); + } + + /** + * Convert a field element to a byte string. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $h + * @return string + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedAssignment + * @psalm-suppress MixedMethodCall + */ + public static function fe_tobytes(ParagonIE_Sodium_Core32_Curve25519_Fe $h) + { + /** + * @var ParagonIE_Sodium_Core32_Int64[] $f + * @var ParagonIE_Sodium_Core32_Int64 $q + */ + $f = array(); + + for ($i = 0; $i < 10; ++$i) { + $f[$i] = $h[$i]->toInt64(); + } + + $q = $f[9]->mulInt(19, 5)->addInt(1 << 14)->shiftRight(25) + ->addInt64($f[0])->shiftRight(26) + ->addInt64($f[1])->shiftRight(25) + ->addInt64($f[2])->shiftRight(26) + ->addInt64($f[3])->shiftRight(25) + ->addInt64($f[4])->shiftRight(26) + ->addInt64($f[5])->shiftRight(25) + ->addInt64($f[6])->shiftRight(26) + ->addInt64($f[7])->shiftRight(25) + ->addInt64($f[8])->shiftRight(26) + ->addInt64($f[9])->shiftRight(25); + + $f[0] = $f[0]->addInt64($q->mulInt(19, 5)); + + $carry0 = $f[0]->shiftRight(26); + $f[1] = $f[1]->addInt64($carry0); + $f[0] = $f[0]->subInt64($carry0->shiftLeft(26)); + + $carry1 = $f[1]->shiftRight(25); + $f[2] = $f[2]->addInt64($carry1); + $f[1] = $f[1]->subInt64($carry1->shiftLeft(25)); + + $carry2 = $f[2]->shiftRight(26); + $f[3] = $f[3]->addInt64($carry2); + $f[2] = $f[2]->subInt64($carry2->shiftLeft(26)); + + $carry3 = $f[3]->shiftRight(25); + $f[4] = $f[4]->addInt64($carry3); + $f[3] = $f[3]->subInt64($carry3->shiftLeft(25)); + + $carry4 = $f[4]->shiftRight(26); + $f[5] = $f[5]->addInt64($carry4); + $f[4] = $f[4]->subInt64($carry4->shiftLeft(26)); + + $carry5 = $f[5]->shiftRight(25); + $f[6] = $f[6]->addInt64($carry5); + $f[5] = $f[5]->subInt64($carry5->shiftLeft(25)); + + $carry6 = $f[6]->shiftRight(26); + $f[7] = $f[7]->addInt64($carry6); + $f[6] = $f[6]->subInt64($carry6->shiftLeft(26)); + + $carry7 = $f[7]->shiftRight(25); + $f[8] = $f[8]->addInt64($carry7); + $f[7] = $f[7]->subInt64($carry7->shiftLeft(25)); + + $carry8 = $f[8]->shiftRight(26); + $f[9] = $f[9]->addInt64($carry8); + $f[8] = $f[8]->subInt64($carry8->shiftLeft(26)); + + $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(); + + /** + * @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_Core32_Curve25519_Fe $f + * @return int + * @throws SodiumException + * @throws TypeError + */ + public static function fe_isnegative(ParagonIE_Sodium_Core32_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_Core32_Curve25519_Fe $f + * @return bool + * @throws SodiumException + * @throws TypeError + */ + public static function fe_isnonzero(ParagonIE_Sodium_Core32_Curve25519_Fe $f) + { + static $zero; + if ($zero === null) { + $zero = str_repeat("\x00", 32); + } + /** @var string $str */ + $str = self::fe_tobytes($f); + /** @var string $zero */ + return !self::verify_32($str, $zero); + } + + /** + * 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_Core32_Curve25519_Fe $f + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $g + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + */ + public static function fe_mul( + ParagonIE_Sodium_Core32_Curve25519_Fe $f, + ParagonIE_Sodium_Core32_Curve25519_Fe $g + ) { + /** + * @var ParagonIE_Sodium_Core32_Int32[] $f + * @var ParagonIE_Sodium_Core32_Int32[] $g + * @var ParagonIE_Sodium_Core32_Int64 $f0 + * @var ParagonIE_Sodium_Core32_Int64 $f1 + * @var ParagonIE_Sodium_Core32_Int64 $f2 + * @var ParagonIE_Sodium_Core32_Int64 $f3 + * @var ParagonIE_Sodium_Core32_Int64 $f4 + * @var ParagonIE_Sodium_Core32_Int64 $f5 + * @var ParagonIE_Sodium_Core32_Int64 $f6 + * @var ParagonIE_Sodium_Core32_Int64 $f7 + * @var ParagonIE_Sodium_Core32_Int64 $f8 + * @var ParagonIE_Sodium_Core32_Int64 $f9 + * @var ParagonIE_Sodium_Core32_Int64 $g0 + * @var ParagonIE_Sodium_Core32_Int64 $g1 + * @var ParagonIE_Sodium_Core32_Int64 $g2 + * @var ParagonIE_Sodium_Core32_Int64 $g3 + * @var ParagonIE_Sodium_Core32_Int64 $g4 + * @var ParagonIE_Sodium_Core32_Int64 $g5 + * @var ParagonIE_Sodium_Core32_Int64 $g6 + * @var ParagonIE_Sodium_Core32_Int64 $g7 + * @var ParagonIE_Sodium_Core32_Int64 $g8 + * @var ParagonIE_Sodium_Core32_Int64 $g9 + */ + $f0 = $f[0]->toInt64(); + $f1 = $f[1]->toInt64(); + $f2 = $f[2]->toInt64(); + $f3 = $f[3]->toInt64(); + $f4 = $f[4]->toInt64(); + $f5 = $f[5]->toInt64(); + $f6 = $f[6]->toInt64(); + $f7 = $f[7]->toInt64(); + $f8 = $f[8]->toInt64(); + $f9 = $f[9]->toInt64(); + $g0 = $g[0]->toInt64(); + $g1 = $g[1]->toInt64(); + $g2 = $g[2]->toInt64(); + $g3 = $g[3]->toInt64(); + $g4 = $g[4]->toInt64(); + $g5 = $g[5]->toInt64(); + $g6 = $g[6]->toInt64(); + $g7 = $g[7]->toInt64(); + $g8 = $g[8]->toInt64(); + $g9 = $g[9]->toInt64(); + $g1_19 = $g1->mulInt(19, 5); /* 2^4 <= 19 <= 2^5, but we only want 5 bits */ + $g2_19 = $g2->mulInt(19, 5); + $g3_19 = $g3->mulInt(19, 5); + $g4_19 = $g4->mulInt(19, 5); + $g5_19 = $g5->mulInt(19, 5); + $g6_19 = $g6->mulInt(19, 5); + $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); + $f0g2 = $f0->mulInt64($g2, 27); + $f0g3 = $f0->mulInt64($g3, 27); + $f0g4 = $f0->mulInt64($g4, 27); + $f0g5 = $f0->mulInt64($g5, 27); + $f0g6 = $f0->mulInt64($g6, 27); + $f0g7 = $f0->mulInt64($g7, 27); + $f0g8 = $f0->mulInt64($g8, 27); + $f0g9 = $f0->mulInt64($g9, 27); + $f1g0 = $f1->mulInt64($g0, 27); + $f1g1_2 = $f1_2->mulInt64($g1, 27); + $f1g2 = $f1->mulInt64($g2, 27); + $f1g3_2 = $f1_2->mulInt64($g3, 27); + $f1g4 = $f1->mulInt64($g4, 30); + $f1g5_2 = $f1_2->mulInt64($g5, 30); + $f1g6 = $f1->mulInt64($g6, 30); + $f1g7_2 = $f1_2->mulInt64($g7, 30); + $f1g8 = $f1->mulInt64($g8, 30); + $f1g9_38 = $g9_19->mulInt64($f1_2, 30); + $f2g0 = $f2->mulInt64($g0, 30); + $f2g1 = $f2->mulInt64($g1, 29); + $f2g2 = $f2->mulInt64($g2, 30); + $f2g3 = $f2->mulInt64($g3, 29); + $f2g4 = $f2->mulInt64($g4, 30); + $f2g5 = $f2->mulInt64($g5, 29); + $f2g6 = $f2->mulInt64($g6, 30); + $f2g7 = $f2->mulInt64($g7, 29); + $f2g8_19 = $g8_19->mulInt64($f2, 30); + $f2g9_19 = $g9_19->mulInt64($f2, 30); + $f3g0 = $f3->mulInt64($g0, 30); + $f3g1_2 = $f3_2->mulInt64($g1, 30); + $f3g2 = $f3->mulInt64($g2, 30); + $f3g3_2 = $f3_2->mulInt64($g3, 30); + $f3g4 = $f3->mulInt64($g4, 30); + $f3g5_2 = $f3_2->mulInt64($g5, 30); + $f3g6 = $f3->mulInt64($g6, 30); + $f3g7_38 = $g7_19->mulInt64($f3_2, 30); + $f3g8_19 = $g8_19->mulInt64($f3, 30); + $f3g9_38 = $g9_19->mulInt64($f3_2, 30); + $f4g0 = $f4->mulInt64($g0, 30); + $f4g1 = $f4->mulInt64($g1, 30); + $f4g2 = $f4->mulInt64($g2, 30); + $f4g3 = $f4->mulInt64($g3, 30); + $f4g4 = $f4->mulInt64($g4, 30); + $f4g5 = $f4->mulInt64($g5, 30); + $f4g6_19 = $g6_19->mulInt64($f4, 30); + $f4g7_19 = $g7_19->mulInt64($f4, 30); + $f4g8_19 = $g8_19->mulInt64($f4, 30); + $f4g9_19 = $g9_19->mulInt64($f4, 30); + $f5g0 = $f5->mulInt64($g0, 30); + $f5g1_2 = $f5_2->mulInt64($g1, 30); + $f5g2 = $f5->mulInt64($g2, 30); + $f5g3_2 = $f5_2->mulInt64($g3, 30); + $f5g4 = $f5->mulInt64($g4, 30); + $f5g5_38 = $g5_19->mulInt64($f5_2, 30); + $f5g6_19 = $g6_19->mulInt64($f5, 30); + $f5g7_38 = $g7_19->mulInt64($f5_2, 30); + $f5g8_19 = $g8_19->mulInt64($f5, 30); + $f5g9_38 = $g9_19->mulInt64($f5_2, 30); + $f6g0 = $f6->mulInt64($g0, 30); + $f6g1 = $f6->mulInt64($g1, 30); + $f6g2 = $f6->mulInt64($g2, 30); + $f6g3 = $f6->mulInt64($g3, 30); + $f6g4_19 = $g4_19->mulInt64($f6, 30); + $f6g5_19 = $g5_19->mulInt64($f6, 30); + $f6g6_19 = $g6_19->mulInt64($f6, 30); + $f6g7_19 = $g7_19->mulInt64($f6, 30); + $f6g8_19 = $g8_19->mulInt64($f6, 30); + $f6g9_19 = $g9_19->mulInt64($f6, 30); + $f7g0 = $f7->mulInt64($g0, 30); + $f7g1_2 = $g1->mulInt64($f7_2, 30); + $f7g2 = $f7->mulInt64($g2, 30); + $f7g3_38 = $g3_19->mulInt64($f7_2, 30); + $f7g4_19 = $g4_19->mulInt64($f7, 30); + $f7g5_38 = $g5_19->mulInt64($f7_2, 30); + $f7g6_19 = $g6_19->mulInt64($f7, 30); + $f7g7_38 = $g7_19->mulInt64($f7_2, 30); + $f7g8_19 = $g8_19->mulInt64($f7, 30); + $f7g9_38 = $g9_19->mulInt64($f7_2, 30); + $f8g0 = $f8->mulInt64($g0, 30); + $f8g1 = $f8->mulInt64($g1, 29); + $f8g2_19 = $g2_19->mulInt64($f8, 30); + $f8g3_19 = $g3_19->mulInt64($f8, 30); + $f8g4_19 = $g4_19->mulInt64($f8, 30); + $f8g5_19 = $g5_19->mulInt64($f8, 30); + $f8g6_19 = $g6_19->mulInt64($f8, 30); + $f8g7_19 = $g7_19->mulInt64($f8, 30); + $f8g8_19 = $g8_19->mulInt64($f8, 30); + $f8g9_19 = $g9_19->mulInt64($f8, 30); + $f9g0 = $f9->mulInt64($g0, 30); + $f9g1_38 = $g1_19->mulInt64($f9_2, 30); + $f9g2_19 = $g2_19->mulInt64($f9, 30); + $f9g3_38 = $g3_19->mulInt64($f9_2, 30); + $f9g4_19 = $g4_19->mulInt64($f9, 30); + $f9g5_38 = $g5_19->mulInt64($f9_2, 30); + $f9g6_19 = $g6_19->mulInt64($f9, 30); + $f9g7_38 = $g7_19->mulInt64($f9_2, 30); + $f9g8_19 = $g8_19->mulInt64($f9, 30); + $f9g9_38 = $g9_19->mulInt64($f9_2, 30); + + // $h0 = $f0g0 + $f1g9_38 + $f2g8_19 + $f3g7_38 + $f4g6_19 + $f5g5_38 + $f6g4_19 + $f7g3_38 + $f8g2_19 + $f9g1_38; + $h0 = $f0g0->addInt64($f1g9_38)->addInt64($f2g8_19)->addInt64($f3g7_38) + ->addInt64($f4g6_19)->addInt64($f5g5_38)->addInt64($f6g4_19) + ->addInt64($f7g3_38)->addInt64($f8g2_19)->addInt64($f9g1_38); + + // $h1 = $f0g1 + $f1g0 + $f2g9_19 + $f3g8_19 + $f4g7_19 + $f5g6_19 + $f6g5_19 + $f7g4_19 + $f8g3_19 + $f9g2_19; + $h1 = $f0g1->addInt64($f1g0)->addInt64($f2g9_19)->addInt64($f3g8_19) + ->addInt64($f4g7_19)->addInt64($f5g6_19)->addInt64($f6g5_19) + ->addInt64($f7g4_19)->addInt64($f8g3_19)->addInt64($f9g2_19); + + // $h2 = $f0g2 + $f1g1_2 + $f2g0 + $f3g9_38 + $f4g8_19 + $f5g7_38 + $f6g6_19 + $f7g5_38 + $f8g4_19 + $f9g3_38; + $h2 = $f0g2->addInt64($f1g1_2)->addInt64($f2g0)->addInt64($f3g9_38) + ->addInt64($f4g8_19)->addInt64($f5g7_38)->addInt64($f6g6_19) + ->addInt64($f7g5_38)->addInt64($f8g4_19)->addInt64($f9g3_38); + + // $h3 = $f0g3 + $f1g2 + $f2g1 + $f3g0 + $f4g9_19 + $f5g8_19 + $f6g7_19 + $f7g6_19 + $f8g5_19 + $f9g4_19; + $h3 = $f0g3->addInt64($f1g2)->addInt64($f2g1)->addInt64($f3g0) + ->addInt64($f4g9_19)->addInt64($f5g8_19)->addInt64($f6g7_19) + ->addInt64($f7g6_19)->addInt64($f8g5_19)->addInt64($f9g4_19); + + // $h4 = $f0g4 + $f1g3_2 + $f2g2 + $f3g1_2 + $f4g0 + $f5g9_38 + $f6g8_19 + $f7g7_38 + $f8g6_19 + $f9g5_38; + $h4 = $f0g4->addInt64($f1g3_2)->addInt64($f2g2)->addInt64($f3g1_2) + ->addInt64($f4g0)->addInt64($f5g9_38)->addInt64($f6g8_19) + ->addInt64($f7g7_38)->addInt64($f8g6_19)->addInt64($f9g5_38); + + // $h5 = $f0g5 + $f1g4 + $f2g3 + $f3g2 + $f4g1 + $f5g0 + $f6g9_19 + $f7g8_19 + $f8g7_19 + $f9g6_19; + $h5 = $f0g5->addInt64($f1g4)->addInt64($f2g3)->addInt64($f3g2) + ->addInt64($f4g1)->addInt64($f5g0)->addInt64($f6g9_19) + ->addInt64($f7g8_19)->addInt64($f8g7_19)->addInt64($f9g6_19); + + // $h6 = $f0g6 + $f1g5_2 + $f2g4 + $f3g3_2 + $f4g2 + $f5g1_2 + $f6g0 + $f7g9_38 + $f8g8_19 + $f9g7_38; + $h6 = $f0g6->addInt64($f1g5_2)->addInt64($f2g4)->addInt64($f3g3_2) + ->addInt64($f4g2)->addInt64($f5g1_2)->addInt64($f6g0) + ->addInt64($f7g9_38)->addInt64($f8g8_19)->addInt64($f9g7_38); + + // $h7 = $f0g7 + $f1g6 + $f2g5 + $f3g4 + $f4g3 + $f5g2 + $f6g1 + $f7g0 + $f8g9_19 + $f9g8_19; + $h7 = $f0g7->addInt64($f1g6)->addInt64($f2g5)->addInt64($f3g4) + ->addInt64($f4g3)->addInt64($f5g2)->addInt64($f6g1) + ->addInt64($f7g0)->addInt64($f8g9_19)->addInt64($f9g8_19); + + // $h8 = $f0g8 + $f1g7_2 + $f2g6 + $f3g5_2 + $f4g4 + $f5g3_2 + $f6g2 + $f7g1_2 + $f8g0 + $f9g9_38; + $h8 = $f0g8->addInt64($f1g7_2)->addInt64($f2g6)->addInt64($f3g5_2) + ->addInt64($f4g4)->addInt64($f5g3_2)->addInt64($f6g2) + ->addInt64($f7g1_2)->addInt64($f8g0)->addInt64($f9g9_38); + + // $h9 = $f0g9 + $f1g8 + $f2g7 + $f3g6 + $f4g5 + $f5g4 + $f6g3 + $f7g2 + $f8g1 + $f9g0 ; + $h9 = $f0g9->addInt64($f1g8)->addInt64($f2g7)->addInt64($f3g6) + ->addInt64($f4g5)->addInt64($f5g4)->addInt64($f6g3) + ->addInt64($f7g2)->addInt64($f8g1)->addInt64($f9g0); + + /** + * @var ParagonIE_Sodium_Core32_Int64 $h0 + * @var ParagonIE_Sodium_Core32_Int64 $h1 + * @var ParagonIE_Sodium_Core32_Int64 $h2 + * @var ParagonIE_Sodium_Core32_Int64 $h3 + * @var ParagonIE_Sodium_Core32_Int64 $h4 + * @var ParagonIE_Sodium_Core32_Int64 $h5 + * @var ParagonIE_Sodium_Core32_Int64 $h6 + * @var ParagonIE_Sodium_Core32_Int64 $h7 + * @var ParagonIE_Sodium_Core32_Int64 $h8 + * @var ParagonIE_Sodium_Core32_Int64 $h9 + * @var ParagonIE_Sodium_Core32_Int64 $carry0 + * @var ParagonIE_Sodium_Core32_Int64 $carry1 + * @var ParagonIE_Sodium_Core32_Int64 $carry2 + * @var ParagonIE_Sodium_Core32_Int64 $carry3 + * @var ParagonIE_Sodium_Core32_Int64 $carry4 + * @var ParagonIE_Sodium_Core32_Int64 $carry5 + * @var ParagonIE_Sodium_Core32_Int64 $carry6 + * @var ParagonIE_Sodium_Core32_Int64 $carry7 + * @var ParagonIE_Sodium_Core32_Int64 $carry8 + * @var ParagonIE_Sodium_Core32_Int64 $carry9 + */ + $carry0 = $h0->addInt(1 << 25)->shiftRight(26); + $h1 = $h1->addInt64($carry0); + $h0 = $h0->subInt64($carry0->shiftLeft(26)); + $carry4 = $h4->addInt(1 << 25)->shiftRight(26); + $h5 = $h5->addInt64($carry4); + $h4 = $h4->subInt64($carry4->shiftLeft(26)); + + $carry1 = $h1->addInt(1 << 24)->shiftRight(25); + $h2 = $h2->addInt64($carry1); + $h1 = $h1->subInt64($carry1->shiftLeft(25)); + $carry5 = $h5->addInt(1 << 24)->shiftRight(25); + $h6 = $h6->addInt64($carry5); + $h5 = $h5->subInt64($carry5->shiftLeft(25)); + + $carry2 = $h2->addInt(1 << 25)->shiftRight(26); + $h3 = $h3->addInt64($carry2); + $h2 = $h2->subInt64($carry2->shiftLeft(26)); + $carry6 = $h6->addInt(1 << 25)->shiftRight(26); + $h7 = $h7->addInt64($carry6); + $h6 = $h6->subInt64($carry6->shiftLeft(26)); + + $carry3 = $h3->addInt(1 << 24)->shiftRight(25); + $h4 = $h4->addInt64($carry3); + $h3 = $h3->subInt64($carry3->shiftLeft(25)); + $carry7 = $h7->addInt(1 << 24)->shiftRight(25); + $h8 = $h8->addInt64($carry7); + $h7 = $h7->subInt64($carry7->shiftLeft(25)); + + $carry4 = $h4->addInt(1 << 25)->shiftRight(26); + $h5 = $h5->addInt64($carry4); + $h4 = $h4->subInt64($carry4->shiftLeft(26)); + $carry8 = $h8->addInt(1 << 25)->shiftRight(26); + $h9 = $h9->addInt64($carry8); + $h8 = $h8->subInt64($carry8->shiftLeft(26)); + + $carry9 = $h9->addInt(1 << 24)->shiftRight(25); + $h0 = $h0->addInt64($carry9->mulInt(19, 5)); + $h9 = $h9->subInt64($carry9->shiftLeft(25)); + + $carry0 = $h0->addInt(1 << 25)->shiftRight(26); + $h1 = $h1->addInt64($carry0); + $h0 = $h0->subInt64($carry0->shiftLeft(26)); + + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + $h0->toInt32(), + $h1->toInt32(), + $h2->toInt32(), + $h3->toInt32(), + $h4->toInt32(), + $h5->toInt32(), + $h6->toInt32(), + $h7->toInt32(), + $h8->toInt32(), + $h9->toInt32() + ) + ); + } + + /** + * 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_Core32_Curve25519_Fe $f + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @psalm-suppress MixedAssignment + * @psalm-suppress MixedMethodCall + */ + public static function fe_neg(ParagonIE_Sodium_Core32_Curve25519_Fe $f) + { + $h = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + for ($i = 0; $i < 10; ++$i) { + $h[$i] = $h[$i]->subInt32($f[$i]); + } + return $h; + } + + /** + * Square a field element + * + * h = f * f + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $f + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedMethodCall + */ + 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); + $f3_2 = $f3->shiftLeft(1); + $f4_2 = $f4->shiftLeft(1); + $f5_2 = $f5->shiftLeft(1); + $f6_2 = $f6->shiftLeft(1); + $f7_2 = $f7->shiftLeft(1); + $f5_38 = $f5->mulInt(38, 6); + $f6_19 = $f6->mulInt(19, 5); + $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); + $f0f3_2 = $f0_2->mulInt64($f3, 28); + $f0f4_2 = $f0_2->mulInt64($f4, 28); + $f0f5_2 = $f0_2->mulInt64($f5, 28); + $f0f6_2 = $f0_2->mulInt64($f6, 28); + $f0f7_2 = $f0_2->mulInt64($f7, 28); + $f0f8_2 = $f0_2->mulInt64($f8, 28); + $f0f9_2 = $f0_2->mulInt64($f9, 28); + + $f1f1_2 = $f1_2->mulInt64($f1, 28); + $f1f2_2 = $f1_2->mulInt64($f2, 28); + $f1f3_4 = $f1_2->mulInt64($f3_2, 28); + $f1f4_2 = $f1_2->mulInt64($f4, 28); + $f1f5_4 = $f1_2->mulInt64($f5_2, 30); + $f1f6_2 = $f1_2->mulInt64($f6, 28); + $f1f7_4 = $f1_2->mulInt64($f7_2, 28); + $f1f8_2 = $f1_2->mulInt64($f8, 28); + $f1f9_76 = $f9_38->mulInt64($f1_2, 30); + + $f2f2 = $f2->mulInt64($f2, 28); + $f2f3_2 = $f2_2->mulInt64($f3, 28); + $f2f4_2 = $f2_2->mulInt64($f4, 28); + $f2f5_2 = $f2_2->mulInt64($f5, 28); + $f2f6_2 = $f2_2->mulInt64($f6, 28); + $f2f7_2 = $f2_2->mulInt64($f7, 28); + $f2f8_38 = $f8_19->mulInt64($f2_2, 30); + $f2f9_38 = $f9_38->mulInt64($f2, 30); + + $f3f3_2 = $f3_2->mulInt64($f3, 28); + $f3f4_2 = $f3_2->mulInt64($f4, 28); + $f3f5_4 = $f3_2->mulInt64($f5_2, 30); + $f3f6_2 = $f3_2->mulInt64($f6, 28); + $f3f7_76 = $f7_38->mulInt64($f3_2, 30); + $f3f8_38 = $f8_19->mulInt64($f3_2, 30); + $f3f9_76 = $f9_38->mulInt64($f3_2, 30); + + $f4f4 = $f4->mulInt64($f4, 28); + $f4f5_2 = $f4_2->mulInt64($f5, 28); + $f4f6_38 = $f6_19->mulInt64($f4_2, 30); + $f4f7_38 = $f7_38->mulInt64($f4, 30); + $f4f8_38 = $f8_19->mulInt64($f4_2, 30); + $f4f9_38 = $f9_38->mulInt64($f4, 30); + + $f5f5_38 = $f5_38->mulInt64($f5, 30); + $f5f6_38 = $f6_19->mulInt64($f5_2, 30); + $f5f7_76 = $f7_38->mulInt64($f5_2, 30); + $f5f8_38 = $f8_19->mulInt64($f5_2, 30); + $f5f9_76 = $f9_38->mulInt64($f5_2, 30); + + $f6f6_19 = $f6_19->mulInt64($f6, 30); + $f6f7_38 = $f7_38->mulInt64($f6, 30); + $f6f8_38 = $f8_19->mulInt64($f6_2, 30); + $f6f9_38 = $f9_38->mulInt64($f6, 30); + + $f7f7_38 = $f7_38->mulInt64($f7, 28); + $f7f8_38 = $f8_19->mulInt64($f7_2, 30); + $f7f9_76 = $f9_38->mulInt64($f7_2, 30); + + $f8f8_19 = $f8_19->mulInt64($f8, 30); + $f8f9_38 = $f9_38->mulInt64($f8, 30); + + $f9f9_38 = $f9_38->mulInt64($f9, 28); + + $h0 = $f0f0->addInt64($f1f9_76)->addInt64($f2f8_38)->addInt64($f3f7_76)->addInt64($f4f6_38)->addInt64($f5f5_38); + $h1 = $f0f1_2->addInt64($f2f9_38)->addInt64($f3f8_38)->addInt64($f4f7_38)->addInt64($f5f6_38); + $h2 = $f0f2_2->addInt64($f1f1_2)->addInt64($f3f9_76)->addInt64($f4f8_38)->addInt64($f5f7_76)->addInt64($f6f6_19); + $h3 = $f0f3_2->addInt64($f1f2_2)->addInt64($f4f9_38)->addInt64($f5f8_38)->addInt64($f6f7_38); + $h4 = $f0f4_2->addInt64($f1f3_4)->addInt64($f2f2)->addInt64($f5f9_76)->addInt64($f6f8_38)->addInt64($f7f7_38); + $h5 = $f0f5_2->addInt64($f1f4_2)->addInt64($f2f3_2)->addInt64($f6f9_38)->addInt64($f7f8_38); + $h6 = $f0f6_2->addInt64($f1f5_4)->addInt64($f2f4_2)->addInt64($f3f3_2)->addInt64($f7f9_76)->addInt64($f8f8_19); + $h7 = $f0f7_2->addInt64($f1f6_2)->addInt64($f2f5_2)->addInt64($f3f4_2)->addInt64($f8f9_38); + $h8 = $f0f8_2->addInt64($f1f7_4)->addInt64($f2f6_2)->addInt64($f3f5_4)->addInt64($f4f4)->addInt64($f9f9_38); + $h9 = $f0f9_2->addInt64($f1f8_2)->addInt64($f2f7_2)->addInt64($f3f6_2)->addInt64($f4f5_2); + + /** + * @var ParagonIE_Sodium_Core32_Int64 $h0 + * @var ParagonIE_Sodium_Core32_Int64 $h1 + * @var ParagonIE_Sodium_Core32_Int64 $h2 + * @var ParagonIE_Sodium_Core32_Int64 $h3 + * @var ParagonIE_Sodium_Core32_Int64 $h4 + * @var ParagonIE_Sodium_Core32_Int64 $h5 + * @var ParagonIE_Sodium_Core32_Int64 $h6 + * @var ParagonIE_Sodium_Core32_Int64 $h7 + * @var ParagonIE_Sodium_Core32_Int64 $h8 + * @var ParagonIE_Sodium_Core32_Int64 $h9 + */ + + $carry0 = $h0->addInt(1 << 25)->shiftRight(26); + $h1 = $h1->addInt64($carry0); + $h0 = $h0->subInt64($carry0->shiftLeft(26)); + + $carry4 = $h4->addInt(1 << 25)->shiftRight(26); + $h5 = $h5->addInt64($carry4); + $h4 = $h4->subInt64($carry4->shiftLeft(26)); + + $carry1 = $h1->addInt(1 << 24)->shiftRight(25); + $h2 = $h2->addInt64($carry1); + $h1 = $h1->subInt64($carry1->shiftLeft(25)); + + $carry5 = $h5->addInt(1 << 24)->shiftRight(25); + $h6 = $h6->addInt64($carry5); + $h5 = $h5->subInt64($carry5->shiftLeft(25)); + + $carry2 = $h2->addInt(1 << 25)->shiftRight(26); + $h3 = $h3->addInt64($carry2); + $h2 = $h2->subInt64($carry2->shiftLeft(26)); + + $carry6 = $h6->addInt(1 << 25)->shiftRight(26); + $h7 = $h7->addInt64($carry6); + $h6 = $h6->subInt64($carry6->shiftLeft(26)); + + $carry3 = $h3->addInt(1 << 24)->shiftRight(25); + $h4 = $h4->addInt64($carry3); + $h3 = $h3->subInt64($carry3->shiftLeft(25)); + + $carry7 = $h7->addInt(1 << 24)->shiftRight(25); + $h8 = $h8->addInt64($carry7); + $h7 = $h7->subInt64($carry7->shiftLeft(25)); + + $carry4 = $h4->addInt(1 << 25)->shiftRight(26); + $h5 = $h5->addInt64($carry4); + $h4 = $h4->subInt64($carry4->shiftLeft(26)); + + $carry8 = $h8->addInt(1 << 25)->shiftRight(26); + $h9 = $h9->addInt64($carry8); + $h8 = $h8->subInt64($carry8->shiftLeft(26)); + + $carry9 = $h9->addInt(1 << 24)->shiftRight(25); + $h0 = $h0->addInt64($carry9->mulInt(19, 5)); + $h9 = $h9->subInt64($carry9->shiftLeft(25)); + + $carry0 = $h0->addInt(1 << 25)->shiftRight(26); + $h1 = $h1->addInt64($carry0); + $h0 = $h0->subInt64($carry0->shiftLeft(26)); + + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + $h0->toInt32(), + $h1->toInt32(), + $h2->toInt32(), + $h3->toInt32(), + $h4->toInt32(), + $h5->toInt32(), + $h6->toInt32(), + $h7->toInt32(), + $h8->toInt32(), + $h9->toInt32() + ) + ); + } + + /** + * Square and double a field element + * + * h = 2 * f * f + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $f + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedMethodCall + */ + 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); + $f1_2 = $f1->shiftLeft(1); + $f2_2 = $f2->shiftLeft(1); + $f3_2 = $f3->shiftLeft(1); + $f4_2 = $f4->shiftLeft(1); + $f5_2 = $f5->shiftLeft(1); + $f6_2 = $f6->shiftLeft(1); + $f7_2 = $f7->shiftLeft(1); + $f5_38 = $f5->mulInt(38, 6); /* 1.959375*2^30 */ + $f6_19 = $f6->mulInt(19, 5); /* 1.959375*2^30 */ + $f7_38 = $f7->mulInt(38, 6); /* 1.959375*2^30 */ + $f8_19 = $f8->mulInt(19, 5); /* 1.959375*2^30 */ + $f9_38 = $f9->mulInt(38, 6); /* 1.959375*2^30 */ + $f0f0 = $f0->mulInt64($f0, 28); + $f0f1_2 = $f0_2->mulInt64($f1, 28); + $f0f2_2 = $f0_2->mulInt64($f2, 28); + $f0f3_2 = $f0_2->mulInt64($f3, 28); + $f0f4_2 = $f0_2->mulInt64($f4, 28); + $f0f5_2 = $f0_2->mulInt64($f5, 28); + $f0f6_2 = $f0_2->mulInt64($f6, 28); + $f0f7_2 = $f0_2->mulInt64($f7, 28); + $f0f8_2 = $f0_2->mulInt64($f8, 28); + $f0f9_2 = $f0_2->mulInt64($f9, 28); + $f1f1_2 = $f1_2->mulInt64($f1, 28); + $f1f2_2 = $f1_2->mulInt64($f2, 28); + $f1f3_4 = $f1_2->mulInt64($f3_2, 29); + $f1f4_2 = $f1_2->mulInt64($f4, 28); + $f1f5_4 = $f1_2->mulInt64($f5_2, 29); + $f1f6_2 = $f1_2->mulInt64($f6, 28); + $f1f7_4 = $f1_2->mulInt64($f7_2, 29); + $f1f8_2 = $f1_2->mulInt64($f8, 28); + $f1f9_76 = $f9_38->mulInt64($f1_2, 29); + $f2f2 = $f2->mulInt64($f2, 28); + $f2f3_2 = $f2_2->mulInt64($f3, 28); + $f2f4_2 = $f2_2->mulInt64($f4, 28); + $f2f5_2 = $f2_2->mulInt64($f5, 28); + $f2f6_2 = $f2_2->mulInt64($f6, 28); + $f2f7_2 = $f2_2->mulInt64($f7, 28); + $f2f8_38 = $f8_19->mulInt64($f2_2, 29); + $f2f9_38 = $f9_38->mulInt64($f2, 29); + $f3f3_2 = $f3_2->mulInt64($f3, 28); + $f3f4_2 = $f3_2->mulInt64($f4, 28); + $f3f5_4 = $f3_2->mulInt64($f5_2, 28); + $f3f6_2 = $f3_2->mulInt64($f6, 28); + $f3f7_76 = $f7_38->mulInt64($f3_2, 29); + $f3f8_38 = $f8_19->mulInt64($f3_2, 29); + $f3f9_76 = $f9_38->mulInt64($f3_2, 29); + $f4f4 = $f4->mulInt64($f4, 28); + $f4f5_2 = $f4_2->mulInt64($f5, 28); + $f4f6_38 = $f6_19->mulInt64($f4_2, 29); + $f4f7_38 = $f7_38->mulInt64($f4, 29); + $f4f8_38 = $f8_19->mulInt64($f4_2, 29); + $f4f9_38 = $f9_38->mulInt64($f4, 29); + $f5f5_38 = $f5_38->mulInt64($f5, 29); + $f5f6_38 = $f6_19->mulInt64($f5_2, 29); + $f5f7_76 = $f7_38->mulInt64($f5_2, 29); + $f5f8_38 = $f8_19->mulInt64($f5_2, 29); + $f5f9_76 = $f9_38->mulInt64($f5_2, 29); + $f6f6_19 = $f6_19->mulInt64($f6, 29); + $f6f7_38 = $f7_38->mulInt64($f6, 29); + $f6f8_38 = $f8_19->mulInt64($f6_2, 29); + $f6f9_38 = $f9_38->mulInt64($f6, 29); + $f7f7_38 = $f7_38->mulInt64($f7, 29); + $f7f8_38 = $f8_19->mulInt64($f7_2, 29); + $f7f9_76 = $f9_38->mulInt64($f7_2, 29); + $f8f8_19 = $f8_19->mulInt64($f8, 29); + $f8f9_38 = $f9_38->mulInt64($f8, 29); + $f9f9_38 = $f9_38->mulInt64($f9, 29); + + $h0 = $f0f0->addInt64($f1f9_76)->addInt64($f2f8_38)->addInt64($f3f7_76)->addInt64($f4f6_38)->addInt64($f5f5_38); + $h1 = $f0f1_2->addInt64($f2f9_38)->addInt64($f3f8_38)->addInt64($f4f7_38)->addInt64($f5f6_38); + $h2 = $f0f2_2->addInt64($f1f1_2)->addInt64($f3f9_76)->addInt64($f4f8_38)->addInt64($f5f7_76)->addInt64($f6f6_19); + $h3 = $f0f3_2->addInt64($f1f2_2)->addInt64($f4f9_38)->addInt64($f5f8_38)->addInt64($f6f7_38); + $h4 = $f0f4_2->addInt64($f1f3_4)->addInt64($f2f2)->addInt64($f5f9_76)->addInt64($f6f8_38)->addInt64($f7f7_38); + $h5 = $f0f5_2->addInt64($f1f4_2)->addInt64($f2f3_2)->addInt64($f6f9_38)->addInt64($f7f8_38); + $h6 = $f0f6_2->addInt64($f1f5_4)->addInt64($f2f4_2)->addInt64($f3f3_2)->addInt64($f7f9_76)->addInt64($f8f8_19); + $h7 = $f0f7_2->addInt64($f1f6_2)->addInt64($f2f5_2)->addInt64($f3f4_2)->addInt64($f8f9_38); + $h8 = $f0f8_2->addInt64($f1f7_4)->addInt64($f2f6_2)->addInt64($f3f5_4)->addInt64($f4f4)->addInt64($f9f9_38); + $h9 = $f0f9_2->addInt64($f1f8_2)->addInt64($f2f7_2)->addInt64($f3f6_2)->addInt64($f4f5_2); + + /** + * @var ParagonIE_Sodium_Core32_Int64 $h0 + * @var ParagonIE_Sodium_Core32_Int64 $h1 + * @var ParagonIE_Sodium_Core32_Int64 $h2 + * @var ParagonIE_Sodium_Core32_Int64 $h3 + * @var ParagonIE_Sodium_Core32_Int64 $h4 + * @var ParagonIE_Sodium_Core32_Int64 $h5 + * @var ParagonIE_Sodium_Core32_Int64 $h6 + * @var ParagonIE_Sodium_Core32_Int64 $h7 + * @var ParagonIE_Sodium_Core32_Int64 $h8 + * @var ParagonIE_Sodium_Core32_Int64 $h9 + */ + $h0 = $h0->shiftLeft(1); + $h1 = $h1->shiftLeft(1); + $h2 = $h2->shiftLeft(1); + $h3 = $h3->shiftLeft(1); + $h4 = $h4->shiftLeft(1); + $h5 = $h5->shiftLeft(1); + $h6 = $h6->shiftLeft(1); + $h7 = $h7->shiftLeft(1); + $h8 = $h8->shiftLeft(1); + $h9 = $h9->shiftLeft(1); + + $carry0 = $h0->addInt(1 << 25)->shiftRight(26); + $h1 = $h1->addInt64($carry0); + $h0 = $h0->subInt64($carry0->shiftLeft(26)); + $carry4 = $h4->addInt(1 << 25)->shiftRight(26); + $h5 = $h5->addInt64($carry4); + $h4 = $h4->subInt64($carry4->shiftLeft(26)); + + $carry1 = $h1->addInt(1 << 24)->shiftRight(25); + $h2 = $h2->addInt64($carry1); + $h1 = $h1->subInt64($carry1->shiftLeft(25)); + $carry5 = $h5->addInt(1 << 24)->shiftRight(25); + $h6 = $h6->addInt64($carry5); + $h5 = $h5->subInt64($carry5->shiftLeft(25)); + + $carry2 = $h2->addInt(1 << 25)->shiftRight(26); + $h3 = $h3->addInt64($carry2); + $h2 = $h2->subInt64($carry2->shiftLeft(26)); + $carry6 = $h6->addInt(1 << 25)->shiftRight(26); + $h7 = $h7->addInt64($carry6); + $h6 = $h6->subInt64($carry6->shiftLeft(26)); + + $carry3 = $h3->addInt(1 << 24)->shiftRight(25); + $h4 = $h4->addInt64($carry3); + $h3 = $h3->subInt64($carry3->shiftLeft(25)); + $carry7 = $h7->addInt(1 << 24)->shiftRight(25); + $h8 = $h8->addInt64($carry7); + $h7 = $h7->subInt64($carry7->shiftLeft(25)); + + $carry4 = $h4->addInt(1 << 25)->shiftRight(26); + $h5 = $h5->addInt64($carry4); + $h4 = $h4->subInt64($carry4->shiftLeft(26)); + $carry8 = $h8->addInt(1 << 25)->shiftRight(26); + $h9 = $h9->addInt64($carry8); + $h8 = $h8->subInt64($carry8->shiftLeft(26)); + + $carry9 = $h9->addInt(1 << 24)->shiftRight(25); + $h0 = $h0->addInt64($carry9->mulInt(19, 5)); + $h9 = $h9->subInt64($carry9->shiftLeft(25)); + + $carry0 = $h0->addInt(1 << 25)->shiftRight(26); + $h1 = $h1->addInt64($carry0); + $h0 = $h0->subInt64($carry0->shiftLeft(26)); + + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + $h0->toInt32(), + $h1->toInt32(), + $h2->toInt32(), + $h3->toInt32(), + $h4->toInt32(), + $h5->toInt32(), + $h6->toInt32(), + $h7->toInt32(), + $h8->toInt32(), + $h9->toInt32() + ) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $Z + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + */ + public static function fe_invert(ParagonIE_Sodium_Core32_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_Core32_Curve25519_Fe $z + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + */ + public static function fe_pow22523(ParagonIE_Sodium_Core32_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_Core32_Curve25519_Fe $f + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $g + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedMethodCall + * @psalm-suppress MixedTypeCoercion + */ + public static function fe_sub(ParagonIE_Sodium_Core32_Curve25519_Fe $f, ParagonIE_Sodium_Core32_Curve25519_Fe $g) + { + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + $f[0]->subInt32($g[0]), + $f[1]->subInt32($g[1]), + $f[2]->subInt32($g[2]), + $f[3]->subInt32($g[3]), + $f[4]->subInt32($g[4]), + $f[5]->subInt32($g[5]), + $f[6]->subInt32($g[6]), + $f[7]->subInt32($g[7]), + $f[8]->subInt32($g[8]), + $f[9]->subInt32($g[9]) + ) + ); + } + + /** + * Add two group elements. + * + * r = p + q + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_Cached $q + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_add( + ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p, + ParagonIE_Sodium_Core32_Curve25519_Ge_Cached $q + ) { + $r = new ParagonIE_Sodium_Core32_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 $a + * @return array<int, mixed> + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedArrayOffset + */ + public static function slide($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 */ + $r = array(); + for ($i = 0; $i < 256; ++$i) { + $r[$i] = (int) (1 & + ( + self::chrToInt($a[$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 $s + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P3 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_frombytes_negate_vartime($s) + { + 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]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[1]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[2]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[3]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[4]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[5]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[6]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[7]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[8]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d[9]) + ) + ); + } + + # fe_frombytes(h->Y,s); + # fe_1(h->Z); + $h = new ParagonIE_Sodium_Core32_Curve25519_Ge_P3( + self::fe_0(), + self::fe_frombytes($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_Core32_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( + $h->X, + ParagonIE_Sodium_Core32_Curve25519_Fe::fromIntArray(self::$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_Core32_Curve25519_Ge_P1p1 $R + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $q + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_madd( + ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $R, + ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p, + ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P1p1 $R + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $q + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_msub( + ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $R, + ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p, + ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P1p1 $p + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P2 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p1p1_to_p2(ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $p) + { + $r = new ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P1p1 $p + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P3 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p1p1_to_p3(ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 $p) + { + $r = new ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P2 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p2_0() + { + return new ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P2 $p + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p2_dbl(ParagonIE_Sodium_Core32_Curve25519_Ge_P2 $p) + { + $r = new ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P3 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p3_0() + { + return new ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P3 $p + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_Cached + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p3_to_cached(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p) + { + static $d2 = null; + if ($d2 === null) { + $d2 = ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[0]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[1]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[2]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[3]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[4]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[5]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[6]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[7]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[8]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$d2[9]) + ) + ); + } + /** @var ParagonIE_Sodium_Core32_Curve25519_Fe $d2 */ + $r = new ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P3 $p + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P2 + */ + public static function ge_p3_to_p2(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p) + { + return new ParagonIE_Sodium_Core32_Curve25519_Ge_P2( + $p->X, + $p->Y, + $p->Z + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $h + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p3_tobytes(ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P3 $p + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_p3_dbl(ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p) + { + $q = self::ge_p3_to_p2($p); + return self::ge_p2_dbl($q); + } + + /** + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp + * @throws SodiumException + * @throws TypeError + */ + public static function ge_precomp_0() + { + return new ParagonIE_Sodium_Core32_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 $c + * @return int + * @psalm-suppress MixedReturnStatement + */ + public static function equal($b, $c) + { + return (int) ((($b ^ $c) - 1 & 0xffffffff) >> 31); + } + + /** + * @internal You should not use this directly from another application + * + * @param string|int $char + * @return int (1 = yes, 0 = no) + * @throws SodiumException + * @throws TypeError + */ + public static function negative($char) + { + if (is_int($char)) { + return $char < 0 ? 1 : 0; + } + /** @var string $char */ + /** @var int $x */ + $x = self::chrToInt(self::substr($char, 0, 1)); + return (int) ($x >> 31); + } + + /** + * Conditional move + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $t + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $u + * @param int $b + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp + * @throws SodiumException + * @throws TypeError + */ + public static function cmov( + ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $t, + ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $u, + $b + ) { + if (!is_int($b)) { + throw new InvalidArgumentException('Expected an integer.'); + } + return new ParagonIE_Sodium_Core32_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) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $pos + * @param int $b + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedArrayAccess + * @psalm-suppress MixedArrayOffset + * @psalm-suppress MixedArgument + */ + public static function ge_select($pos = 0, $b = 0) + { + static $base = null; + if ($base === null) { + $base = array(); + foreach (self::$base as $i => $bas) { + for ($j = 0; $j < 8; ++$j) { + $base[$i][$j] = new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp( + ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][0]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][1]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][2]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][3]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][4]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][5]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][6]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][7]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][8]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][0][9]) + ) + ), + ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][0]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][1]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][2]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][3]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][4]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][5]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][6]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][7]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][8]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][1][9]) + ) + ), + ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][0]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][1]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][2]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][3]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][4]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][5]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][6]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][7]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][8]), + ParagonIE_Sodium_Core32_Int32::fromInt($bas[$j][2][9]) + ) + ) + ); + } + } + } + if (!is_int($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); + /** @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) + ); + } + $minusT = new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp( + self::fe_copy($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_Core32_Curve25519_Ge_P3 $p + * @param ParagonIE_Sodium_Core32_Curve25519_Ge_Cached $q + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 + * @throws SodiumException + * @throws TypeError + */ + public static function ge_sub( + ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $p, + ParagonIE_Sodium_Core32_Curve25519_Ge_Cached $q + ) { + $r = new ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P2 $h + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function ge_tobytes(ParagonIE_Sodium_Core32_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_Core32_Curve25519_Ge_P3 $A + * @param string $b + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P2 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedArrayAccess + */ + public static function ge_double_scalarmult_vartime( + $a, + ParagonIE_Sodium_Core32_Curve25519_Ge_P3 $A, + $b + ) { + /** @var array<int, ParagonIE_Sodium_Core32_Curve25519_Ge_Cached> $Ai */ + $Ai = array(); + + static $Bi = array(); + /** @var array<int, ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp> $Bi */ + if (!$Bi) { + for ($i = 0; $i < 8; ++$i) { + $Bi[$i] = new ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp( + ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][0]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][1]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][2]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][3]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][4]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][5]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][6]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][7]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][8]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][0][9]) + ) + ), + ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][0]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][1]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][2]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][3]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][4]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][5]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][6]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][7]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][8]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][1][9]) + ) + ), + ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray( + array( + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][0]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][1]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][2]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][3]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][4]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][5]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][6]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][7]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][8]), + ParagonIE_Sodium_Core32_Int32::fromInt(self::$base2[$i][2][9]) + ) + ) + ); + } + } + + for ($i = 0; $i < 8; ++$i) { + $Ai[$i] = new ParagonIE_Sodium_Core32_Curve25519_Ge_Cached( + self::fe_0(), + self::fe_0(), + self::fe_0(), + self::fe_0() + ); + } + /** @var array<int, ParagonIE_Sodium_Core32_Curve25519_Ge_Cached> $Ai */ + + # 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)] + ); + } + /** @var array<int, ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp> $Bi */ + + # if (bslide[i] > 0) { + if ($bslide[$i] > 0) { + # ge_p1p1_to_p3(&u,&t); + # ge_madd(&t,&u,&Bi[bslide[i]/2]); + $u = self::ge_p1p1_to_p3($t); + /** @var int $index */ + $index = (int) floor($bslide[$i] / 2); + /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $thisB */ + $thisB = $Bi[$index]; + $t = self::ge_madd($t, $u, $thisB); + # } else if (bslide[i] < 0) { + } elseif ($bslide[$i] < 0) { + # ge_p1p1_to_p3(&u,&t); + # ge_msub(&t,&u,&Bi[(-bslide[i])/2]); + $u = self::ge_p1p1_to_p3($t); + + /** @var int $index */ + $index = (int) floor(-$bslide[$i] / 2); + + /** @var ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp $thisB */ + $thisB = $Bi[$index]; + $t = self::ge_msub($t, $u, $thisB); + } + # 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 $a + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P3 + * @psalm-suppress MixedAssignment + * @psalm-suppress MixedOperand + * @throws SodiumException + * @throws TypeError + */ + public static function ge_scalarmult_base($a) + { + /** @var array<int, int> $e */ + $e = array(); + $r = new ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1(); + + for ($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 $c + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sc_muladd($a, $b, $c) + { + $a0 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($a, 0, 3))); + $a1 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($a, 2, 4)) >> 5)); + $a2 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($a, 5, 3)) >> 2)); + $a3 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($a, 7, 4)) >> 7)); + $a4 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($a, 10, 4)) >> 4)); + $a5 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($a, 13, 3)) >> 1)); + $a6 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($a, 15, 4)) >> 6)); + $a7 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($a, 18, 3)) >> 3)); + $a8 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($a, 21, 3))); + $a9 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($a, 23, 4)) >> 5)); + $a10 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($a, 26, 3)) >> 2)); + $a11 = ParagonIE_Sodium_Core32_Int64::fromInt(0x1fffffff & (self::load_4(self::substr($a, 28, 4)) >> 7)); + $b0 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($b, 0, 3))); + $b1 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($b, 2, 4)) >> 5)); + $b2 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($b, 5, 3)) >> 2)); + $b3 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($b, 7, 4)) >> 7)); + $b4 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($b, 10, 4)) >> 4)); + $b5 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($b, 13, 3)) >> 1)); + $b6 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($b, 15, 4)) >> 6)); + $b7 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($b, 18, 3)) >> 3)); + $b8 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($b, 21, 3))); + $b9 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($b, 23, 4)) >> 5)); + $b10 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($b, 26, 3)) >> 2)); + $b11 = ParagonIE_Sodium_Core32_Int64::fromInt(0x1fffffff & (self::load_4(self::substr($b, 28, 4)) >> 7)); + $c0 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($c, 0, 3))); + $c1 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($c, 2, 4)) >> 5)); + $c2 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($c, 5, 3)) >> 2)); + $c3 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($c, 7, 4)) >> 7)); + $c4 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($c, 10, 4)) >> 4)); + $c5 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($c, 13, 3)) >> 1)); + $c6 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($c, 15, 4)) >> 6)); + $c7 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($c, 18, 3)) >> 3)); + $c8 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($c, 21, 3))); + $c9 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($c, 23, 4)) >> 5)); + $c10 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($c, 26, 3)) >> 2)); + $c11 = ParagonIE_Sodium_Core32_Int64::fromInt(0x1fffffff & (self::load_4(self::substr($c, 28, 4)) >> 7)); + + /* Can't really avoid the pyramid here: */ + /** + * @var ParagonIE_Sodium_Core32_Int64 $s0 + * @var ParagonIE_Sodium_Core32_Int64 $s1 + * @var ParagonIE_Sodium_Core32_Int64 $s2 + * @var ParagonIE_Sodium_Core32_Int64 $s3 + * @var ParagonIE_Sodium_Core32_Int64 $s4 + * @var ParagonIE_Sodium_Core32_Int64 $s5 + * @var ParagonIE_Sodium_Core32_Int64 $s6 + * @var ParagonIE_Sodium_Core32_Int64 $s7 + * @var ParagonIE_Sodium_Core32_Int64 $s8 + * @var ParagonIE_Sodium_Core32_Int64 $s9 + * @var ParagonIE_Sodium_Core32_Int64 $s10 + * @var ParagonIE_Sodium_Core32_Int64 $s11 + * @var ParagonIE_Sodium_Core32_Int64 $s12 + * @var ParagonIE_Sodium_Core32_Int64 $s13 + * @var ParagonIE_Sodium_Core32_Int64 $s14 + * @var ParagonIE_Sodium_Core32_Int64 $s15 + * @var ParagonIE_Sodium_Core32_Int64 $s16 + * @var ParagonIE_Sodium_Core32_Int64 $s17 + * @var ParagonIE_Sodium_Core32_Int64 $s18 + * @var ParagonIE_Sodium_Core32_Int64 $s19 + * @var ParagonIE_Sodium_Core32_Int64 $s20 + * @var ParagonIE_Sodium_Core32_Int64 $s21 + * @var ParagonIE_Sodium_Core32_Int64 $s22 + * @var ParagonIE_Sodium_Core32_Int64 $s23 + */ + + $s0 = $c0->addInt64($a0->mulInt64($b0, 24)); + $s1 = $c1->addInt64($a0->mulInt64($b1, 24))->addInt64($a1->mulInt64($b0, 24)); + $s2 = $c2->addInt64($a0->mulInt64($b2, 24))->addInt64($a1->mulInt64($b1, 24))->addInt64($a2->mulInt64($b0, 24)); + $s3 = $c3->addInt64($a0->mulInt64($b3, 24))->addInt64($a1->mulInt64($b2, 24))->addInt64($a2->mulInt64($b1, 24)) + ->addInt64($a3->mulInt64($b0, 24)); + $s4 = $c4->addInt64($a0->mulInt64($b4, 24))->addInt64($a1->mulInt64($b3, 24))->addInt64($a2->mulInt64($b2, 24)) + ->addInt64($a3->mulInt64($b1, 24))->addInt64($a4->mulInt64($b0, 24)); + $s5 = $c5->addInt64($a0->mulInt64($b5, 24))->addInt64($a1->mulInt64($b4, 24))->addInt64($a2->mulInt64($b3, 24)) + ->addInt64($a3->mulInt64($b2, 24))->addInt64($a4->mulInt64($b1, 24))->addInt64($a5->mulInt64($b0, 24)); + $s6 = $c6->addInt64($a0->mulInt64($b6, 24))->addInt64($a1->mulInt64($b5, 24))->addInt64($a2->mulInt64($b4, 24)) + ->addInt64($a3->mulInt64($b3, 24))->addInt64($a4->mulInt64($b2, 24))->addInt64($a5->mulInt64($b1, 24)) + ->addInt64($a6->mulInt64($b0, 24)); + $s7 = $c7->addInt64($a0->mulInt64($b7, 24))->addInt64($a1->mulInt64($b6, 24))->addInt64($a2->mulInt64($b5, 24)) + ->addInt64($a3->mulInt64($b4, 24))->addInt64($a4->mulInt64($b3, 24))->addInt64($a5->mulInt64($b2, 24)) + ->addInt64($a6->mulInt64($b1, 24))->addInt64($a7->mulInt64($b0, 24)); + $s8 = $c8->addInt64($a0->mulInt64($b8, 24))->addInt64($a1->mulInt64($b7, 24))->addInt64($a2->mulInt64($b6, 24)) + ->addInt64($a3->mulInt64($b5, 24))->addInt64($a4->mulInt64($b4, 24))->addInt64($a5->mulInt64($b3, 24)) + ->addInt64($a6->mulInt64($b2, 24))->addInt64($a7->mulInt64($b1, 24))->addInt64($a8->mulInt64($b0, 24)); + $s9 = $c9->addInt64($a0->mulInt64($b9, 24))->addInt64($a1->mulInt64($b8, 24))->addInt64($a2->mulInt64($b7, 24)) + ->addInt64($a3->mulInt64($b6, 24))->addInt64($a4->mulInt64($b5, 24))->addInt64($a5->mulInt64($b4, 24)) + ->addInt64($a6->mulInt64($b3, 24))->addInt64($a7->mulInt64($b2, 24))->addInt64($a8->mulInt64($b1, 24)) + ->addInt64($a9->mulInt64($b0, 24)); + $s10 = $c10->addInt64($a0->mulInt64($b10, 24))->addInt64($a1->mulInt64($b9, 24))->addInt64($a2->mulInt64($b8, 24)) + ->addInt64($a3->mulInt64($b7, 24))->addInt64($a4->mulInt64($b6, 24))->addInt64($a5->mulInt64($b5, 24)) + ->addInt64($a6->mulInt64($b4, 24))->addInt64($a7->mulInt64($b3, 24))->addInt64($a8->mulInt64($b2, 24)) + ->addInt64($a9->mulInt64($b1, 24))->addInt64($a10->mulInt64($b0, 24)); + $s11 = $c11->addInt64($a0->mulInt64($b11, 24))->addInt64($a1->mulInt64($b10, 24))->addInt64($a2->mulInt64($b9, 24)) + ->addInt64($a3->mulInt64($b8, 24))->addInt64($a4->mulInt64($b7, 24))->addInt64($a5->mulInt64($b6, 24)) + ->addInt64($a6->mulInt64($b5, 24))->addInt64($a7->mulInt64($b4, 24))->addInt64($a8->mulInt64($b3, 24)) + ->addInt64($a9->mulInt64($b2, 24))->addInt64($a10->mulInt64($b1, 24))->addInt64($a11->mulInt64($b0, 24)); + $s12 = $a1->mulInt64($b11, 24)->addInt64($a2->mulInt64($b10, 24))->addInt64($a3->mulInt64($b9, 24)) + ->addInt64($a4->mulInt64($b8, 24))->addInt64($a5->mulInt64($b7, 24))->addInt64($a6->mulInt64($b6, 24)) + ->addInt64($a7->mulInt64($b5, 24))->addInt64($a8->mulInt64($b4, 24))->addInt64($a9->mulInt64($b3, 24)) + ->addInt64($a10->mulInt64($b2, 24))->addInt64($a11->mulInt64($b1, 24)); + $s13 = $a2->mulInt64($b11, 24)->addInt64($a3->mulInt64($b10, 24))->addInt64($a4->mulInt64($b9, 24)) + ->addInt64($a5->mulInt64($b8, 24))->addInt64($a6->mulInt64($b7, 24))->addInt64($a7->mulInt64($b6, 24)) + ->addInt64($a8->mulInt64($b5, 24))->addInt64($a9->mulInt64($b4, 24))->addInt64($a10->mulInt64($b3, 24)) + ->addInt64($a11->mulInt64($b2, 24)); + $s14 = $a3->mulInt64($b11, 24)->addInt64($a4->mulInt64($b10, 24))->addInt64($a5->mulInt64($b9, 24)) + ->addInt64($a6->mulInt64($b8, 24))->addInt64($a7->mulInt64($b7, 24))->addInt64($a8->mulInt64($b6, 24)) + ->addInt64($a9->mulInt64($b5, 24))->addInt64($a10->mulInt64($b4, 24))->addInt64($a11->mulInt64($b3, 24)); + $s15 = $a4->mulInt64($b11, 24)->addInt64($a5->mulInt64($b10, 24))->addInt64($a6->mulInt64($b9, 24)) + ->addInt64($a7->mulInt64($b8, 24))->addInt64($a8->mulInt64($b7, 24))->addInt64($a9->mulInt64($b6, 24)) + ->addInt64($a10->mulInt64($b5, 24))->addInt64($a11->mulInt64($b4, 24)); + $s16 = $a5->mulInt64($b11, 24)->addInt64($a6->mulInt64($b10, 24))->addInt64($a7->mulInt64($b9, 24)) + ->addInt64($a8->mulInt64($b8, 24))->addInt64($a9->mulInt64($b7, 24))->addInt64($a10->mulInt64($b6, 24)) + ->addInt64($a11->mulInt64($b5, 24)); + $s17 = $a6->mulInt64($b11, 24)->addInt64($a7->mulInt64($b10, 24))->addInt64($a8->mulInt64($b9, 24)) + ->addInt64($a9->mulInt64($b8, 24))->addInt64($a10->mulInt64($b7, 24))->addInt64($a11->mulInt64($b6, 24)); + $s18 = $a7->mulInt64($b11, 24)->addInt64($a8->mulInt64($b10, 24))->addInt64($a9->mulInt64($b9, 24)) + ->addInt64($a10->mulInt64($b8, 24))->addInt64($a11->mulInt64($b7, 24)); + $s19 = $a8->mulInt64($b11, 24)->addInt64($a9->mulInt64($b10, 24))->addInt64($a10->mulInt64($b9, 24)) + ->addInt64($a11->mulInt64($b8, 24)); + $s20 = $a9->mulInt64($b11, 24)->addInt64($a10->mulInt64($b10, 24))->addInt64($a11->mulInt64($b9, 24)); + $s21 = $a10->mulInt64($b11, 24)->addInt64($a11->mulInt64($b10, 24)); + $s22 = $a11->mulInt64($b11, 24); + $s23 = new ParagonIE_Sodium_Core32_Int64(); + + $carry0 = $s0->addInt(1 << 20)->shiftRight(21); + $s1 = $s1->addInt64($carry0); + $s0 = $s0->subInt64($carry0->shiftLeft(21)); + $carry2 = $s2->addInt(1 << 20)->shiftRight(21); + $s3 = $s3->addInt64($carry2); + $s2 = $s2->subInt64($carry2->shiftLeft(21)); + $carry4 = $s4->addInt(1 << 20)->shiftRight(21); + $s5 = $s5->addInt64($carry4); + $s4 = $s4->subInt64($carry4->shiftLeft(21)); + $carry6 = $s6->addInt(1 << 20)->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry8 = $s8->addInt(1 << 20)->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry10 = $s10->addInt(1 << 20)->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + $carry12 = $s12->addInt(1 << 20)->shiftRight(21); + $s13 = $s13->addInt64($carry12); + $s12 = $s12->subInt64($carry12->shiftLeft(21)); + $carry14 = $s14->addInt(1 << 20)->shiftRight(21); + $s15 = $s15->addInt64($carry14); + $s14 = $s14->subInt64($carry14->shiftLeft(21)); + $carry16 = $s16->addInt(1 << 20)->shiftRight(21); + $s17 = $s17->addInt64($carry16); + $s16 = $s16->subInt64($carry16->shiftLeft(21)); + $carry18 = $s18->addInt(1 << 20)->shiftRight(21); + $s19 = $s19->addInt64($carry18); + $s18 = $s18->subInt64($carry18->shiftLeft(21)); + $carry20 = $s20->addInt(1 << 20)->shiftRight(21); + $s21 = $s21->addInt64($carry20); + $s20 = $s20->subInt64($carry20->shiftLeft(21)); + $carry22 = $s22->addInt(1 << 20)->shiftRight(21); + $s23 = $s23->addInt64($carry22); + $s22 = $s22->subInt64($carry22->shiftLeft(21)); + + $carry1 = $s1->addInt(1 << 20)->shiftRight(21); + $s2 = $s2->addInt64($carry1); + $s1 = $s1->subInt64($carry1->shiftLeft(21)); + $carry3 = $s3->addInt(1 << 20)->shiftRight(21); + $s4 = $s4->addInt64($carry3); + $s3 = $s3->subInt64($carry3->shiftLeft(21)); + $carry5 = $s5->addInt(1 << 20)->shiftRight(21); + $s6 = $s6->addInt64($carry5); + $s5 = $s5->subInt64($carry5->shiftLeft(21)); + $carry7 = $s7->addInt(1 << 20)->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry9 = $s9->addInt(1 << 20)->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry11 = $s11->addInt(1 << 20)->shiftRight(21); + $s12 = $s12->addInt64($carry11); + $s11 = $s11->subInt64($carry11->shiftLeft(21)); + $carry13 = $s13->addInt(1 << 20)->shiftRight(21); + $s14 = $s14->addInt64($carry13); + $s13 = $s13->subInt64($carry13->shiftLeft(21)); + $carry15 = $s15->addInt(1 << 20)->shiftRight(21); + $s16 = $s16->addInt64($carry15); + $s15 = $s15->subInt64($carry15->shiftLeft(21)); + $carry17 = $s17->addInt(1 << 20)->shiftRight(21); + $s18 = $s18->addInt64($carry17); + $s17 = $s17->subInt64($carry17->shiftLeft(21)); + $carry19 = $s19->addInt(1 << 20)->shiftRight(21); + $s20 = $s20->addInt64($carry19); + $s19 = $s19->subInt64($carry19->shiftLeft(21)); + $carry21 = $s21->addInt(1 << 20)->shiftRight(21); + $s22 = $s22->addInt64($carry21); + $s21 = $s21->subInt64($carry21->shiftLeft(21)); + + $s11 = $s11->addInt64($s23->mulInt(666643, 20)); + $s12 = $s12->addInt64($s23->mulInt(470296, 19)); + $s13 = $s13->addInt64($s23->mulInt(654183, 20)); + $s14 = $s14->subInt64($s23->mulInt(997805, 20)); + $s15 = $s15->addInt64($s23->mulInt(136657, 18)); + $s16 = $s16->subInt64($s23->mulInt(683901, 20)); + + $s10 = $s10->addInt64($s22->mulInt(666643, 20)); + $s11 = $s11->addInt64($s22->mulInt(470296, 19)); + $s12 = $s12->addInt64($s22->mulInt(654183, 20)); + $s13 = $s13->subInt64($s22->mulInt(997805, 20)); + $s14 = $s14->addInt64($s22->mulInt(136657, 18)); + $s15 = $s15->subInt64($s22->mulInt(683901, 20)); + + $s9 = $s9->addInt64($s21->mulInt(666643, 20)); + $s10 = $s10->addInt64($s21->mulInt(470296, 19)); + $s11 = $s11->addInt64($s21->mulInt(654183, 20)); + $s12 = $s12->subInt64($s21->mulInt(997805, 20)); + $s13 = $s13->addInt64($s21->mulInt(136657, 18)); + $s14 = $s14->subInt64($s21->mulInt(683901, 20)); + + $s8 = $s8->addInt64($s20->mulInt(666643, 20)); + $s9 = $s9->addInt64($s20->mulInt(470296, 19)); + $s10 = $s10->addInt64($s20->mulInt(654183, 20)); + $s11 = $s11->subInt64($s20->mulInt(997805, 20)); + $s12 = $s12->addInt64($s20->mulInt(136657, 18)); + $s13 = $s13->subInt64($s20->mulInt(683901, 20)); + + $s7 = $s7->addInt64($s19->mulInt(666643, 20)); + $s8 = $s8->addInt64($s19->mulInt(470296, 19)); + $s9 = $s9->addInt64($s19->mulInt(654183, 20)); + $s10 = $s10->subInt64($s19->mulInt(997805, 20)); + $s11 = $s11->addInt64($s19->mulInt(136657, 18)); + $s12 = $s12->subInt64($s19->mulInt(683901, 20)); + + $s6 = $s6->addInt64($s18->mulInt(666643, 20)); + $s7 = $s7->addInt64($s18->mulInt(470296, 19)); + $s8 = $s8->addInt64($s18->mulInt(654183, 20)); + $s9 = $s9->subInt64($s18->mulInt(997805, 20)); + $s10 = $s10->addInt64($s18->mulInt(136657, 18)); + $s11 = $s11->subInt64($s18->mulInt(683901, 20)); + + $carry6 = $s6->addInt(1 << 20)->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry8 = $s8->addInt(1 << 20)->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry10 = $s10->addInt(1 << 20)->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + $carry12 = $s12->addInt(1 << 20)->shiftRight(21); + $s13 = $s13->addInt64($carry12); + $s12 = $s12->subInt64($carry12->shiftLeft(21)); + $carry14 = $s14->addInt(1 << 20)->shiftRight(21); + $s15 = $s15->addInt64($carry14); + $s14 = $s14->subInt64($carry14->shiftLeft(21)); + $carry16 = $s16->addInt(1 << 20)->shiftRight(21); + $s17 = $s17->addInt64($carry16); + $s16 = $s16->subInt64($carry16->shiftLeft(21)); + + $carry7 = $s7->addInt(1 << 20)->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry9 = $s9->addInt(1 << 20)->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry11 = $s11->addInt(1 << 20)->shiftRight(21); + $s12 = $s12->addInt64($carry11); + $s11 = $s11->subInt64($carry11->shiftLeft(21)); + $carry13 = $s13->addInt(1 << 20)->shiftRight(21); + $s14 = $s14->addInt64($carry13); + $s13 = $s13->subInt64($carry13->shiftLeft(21)); + $carry15 = $s15->addInt(1 << 20)->shiftRight(21); + $s16 = $s16->addInt64($carry15); + $s15 = $s15->subInt64($carry15->shiftLeft(21)); + + $s5 = $s5->addInt64($s17->mulInt(666643, 20)); + $s6 = $s6->addInt64($s17->mulInt(470296, 19)); + $s7 = $s7->addInt64($s17->mulInt(654183, 20)); + $s8 = $s8->subInt64($s17->mulInt(997805, 20)); + $s9 = $s9->addInt64($s17->mulInt(136657, 18)); + $s10 = $s10->subInt64($s17->mulInt(683901, 20)); + + $s4 = $s4->addInt64($s16->mulInt(666643, 20)); + $s5 = $s5->addInt64($s16->mulInt(470296, 19)); + $s6 = $s6->addInt64($s16->mulInt(654183, 20)); + $s7 = $s7->subInt64($s16->mulInt(997805, 20)); + $s8 = $s8->addInt64($s16->mulInt(136657, 18)); + $s9 = $s9->subInt64($s16->mulInt(683901, 20)); + + $s3 = $s3->addInt64($s15->mulInt(666643, 20)); + $s4 = $s4->addInt64($s15->mulInt(470296, 19)); + $s5 = $s5->addInt64($s15->mulInt(654183, 20)); + $s6 = $s6->subInt64($s15->mulInt(997805, 20)); + $s7 = $s7->addInt64($s15->mulInt(136657, 18)); + $s8 = $s8->subInt64($s15->mulInt(683901, 20)); + + $s2 = $s2->addInt64($s14->mulInt(666643, 20)); + $s3 = $s3->addInt64($s14->mulInt(470296, 19)); + $s4 = $s4->addInt64($s14->mulInt(654183, 20)); + $s5 = $s5->subInt64($s14->mulInt(997805, 20)); + $s6 = $s6->addInt64($s14->mulInt(136657, 18)); + $s7 = $s7->subInt64($s14->mulInt(683901, 20)); + + $s1 = $s1->addInt64($s13->mulInt(666643, 20)); + $s2 = $s2->addInt64($s13->mulInt(470296, 19)); + $s3 = $s3->addInt64($s13->mulInt(654183, 20)); + $s4 = $s4->subInt64($s13->mulInt(997805, 20)); + $s5 = $s5->addInt64($s13->mulInt(136657, 18)); + $s6 = $s6->subInt64($s13->mulInt(683901, 20)); + + $s0 = $s0->addInt64($s12->mulInt(666643, 20)); + $s1 = $s1->addInt64($s12->mulInt(470296, 19)); + $s2 = $s2->addInt64($s12->mulInt(654183, 20)); + $s3 = $s3->subInt64($s12->mulInt(997805, 20)); + $s4 = $s4->addInt64($s12->mulInt(136657, 18)); + $s5 = $s5->subInt64($s12->mulInt(683901, 20)); + $s12 = new ParagonIE_Sodium_Core32_Int64(); + + $carry0 = $s0->addInt(1 << 20)->shiftRight(21); + $s1 = $s1->addInt64($carry0); + $s0 = $s0->subInt64($carry0->shiftLeft(21)); + $carry2 = $s2->addInt(1 << 20)->shiftRight(21); + $s3 = $s3->addInt64($carry2); + $s2 = $s2->subInt64($carry2->shiftLeft(21)); + $carry4 = $s4->addInt(1 << 20)->shiftRight(21); + $s5 = $s5->addInt64($carry4); + $s4 = $s4->subInt64($carry4->shiftLeft(21)); + $carry6 = $s6->addInt(1 << 20)->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry8 = $s8->addInt(1 << 20)->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry10 = $s10->addInt(1 << 20)->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + + $carry1 = $s1->addInt(1 << 20)->shiftRight(21); + $s2 = $s2->addInt64($carry1); + $s1 = $s1->subInt64($carry1->shiftLeft(21)); + $carry3 = $s3->addInt(1 << 20)->shiftRight(21); + $s4 = $s4->addInt64($carry3); + $s3 = $s3->subInt64($carry3->shiftLeft(21)); + $carry5 = $s5->addInt(1 << 20)->shiftRight(21); + $s6 = $s6->addInt64($carry5); + $s5 = $s5->subInt64($carry5->shiftLeft(21)); + $carry7 = $s7->addInt(1 << 20)->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry9 = $s9->addInt(1 << 20)->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry11 = $s11->addInt(1 << 20)->shiftRight(21); + $s12 = $s12->addInt64($carry11); + $s11 = $s11->subInt64($carry11->shiftLeft(21)); + + $s0 = $s0->addInt64($s12->mulInt(666643, 20)); + $s1 = $s1->addInt64($s12->mulInt(470296, 19)); + $s2 = $s2->addInt64($s12->mulInt(654183, 20)); + $s3 = $s3->subInt64($s12->mulInt(997805, 20)); + $s4 = $s4->addInt64($s12->mulInt(136657, 18)); + $s5 = $s5->subInt64($s12->mulInt(683901, 20)); + $s12 = new ParagonIE_Sodium_Core32_Int64(); + + $carry0 = $s0->shiftRight(21); + $s1 = $s1->addInt64($carry0); + $s0 = $s0->subInt64($carry0->shiftLeft(21)); + $carry1 = $s1->shiftRight(21); + $s2 = $s2->addInt64($carry1); + $s1 = $s1->subInt64($carry1->shiftLeft(21)); + $carry2 = $s2->shiftRight(21); + $s3 = $s3->addInt64($carry2); + $s2 = $s2->subInt64($carry2->shiftLeft(21)); + $carry3 = $s3->shiftRight(21); + $s4 = $s4->addInt64($carry3); + $s3 = $s3->subInt64($carry3->shiftLeft(21)); + $carry4 = $s4->shiftRight(21); + $s5 = $s5->addInt64($carry4); + $s4 = $s4->subInt64($carry4->shiftLeft(21)); + $carry5 = $s5->shiftRight(21); + $s6 = $s6->addInt64($carry5); + $s5 = $s5->subInt64($carry5->shiftLeft(21)); + $carry6 = $s6->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry7 = $s7->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry8 = $s8->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry9 = $s9->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry10 = $s10->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + $carry11 = $s11->shiftRight(21); + $s12 = $s12->addInt64($carry11); + $s11 = $s11->subInt64($carry11->shiftLeft(21)); + + $s0 = $s0->addInt64($s12->mulInt(666643, 20)); + $s1 = $s1->addInt64($s12->mulInt(470296, 19)); + $s2 = $s2->addInt64($s12->mulInt(654183, 20)); + $s3 = $s3->subInt64($s12->mulInt(997805, 20)); + $s4 = $s4->addInt64($s12->mulInt(136657, 18)); + $s5 = $s5->subInt64($s12->mulInt(683901, 20)); + + $carry0 = $s0->shiftRight(21); + $s1 = $s1->addInt64($carry0); + $s0 = $s0->subInt64($carry0->shiftLeft(21)); + $carry1 = $s1->shiftRight(21); + $s2 = $s2->addInt64($carry1); + $s1 = $s1->subInt64($carry1->shiftLeft(21)); + $carry2 = $s2->shiftRight(21); + $s3 = $s3->addInt64($carry2); + $s2 = $s2->subInt64($carry2->shiftLeft(21)); + $carry3 = $s3->shiftRight(21); + $s4 = $s4->addInt64($carry3); + $s3 = $s3->subInt64($carry3->shiftLeft(21)); + $carry4 = $s4->shiftRight(21); + $s5 = $s5->addInt64($carry4); + $s4 = $s4->subInt64($carry4->shiftLeft(21)); + $carry5 = $s5->shiftRight(21); + $s6 = $s6->addInt64($carry5); + $s5 = $s5->subInt64($carry5->shiftLeft(21)); + $carry6 = $s6->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry7 = $s7->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry8 = $s10->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry9 = $s9->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry10 = $s10->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + + $S0 = $s0->toInt(); + $S1 = $s1->toInt(); + $S2 = $s2->toInt(); + $S3 = $s3->toInt(); + $S4 = $s4->toInt(); + $S5 = $s5->toInt(); + $S6 = $s6->toInt(); + $S7 = $s7->toInt(); + $S8 = $s8->toInt(); + $S9 = $s9->toInt(); + $S10 = $s10->toInt(); + $S11 = $s11->toInt(); + + /** + * @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)), + (int) (0xff & ($S11 >> 17)) + ); + return self::intArrayToString($arr); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $s + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sc_reduce($s) + { + /** + * @var ParagonIE_Sodium_Core32_Int64 $s0 + * @var ParagonIE_Sodium_Core32_Int64 $s1 + * @var ParagonIE_Sodium_Core32_Int64 $s2 + * @var ParagonIE_Sodium_Core32_Int64 $s3 + * @var ParagonIE_Sodium_Core32_Int64 $s4 + * @var ParagonIE_Sodium_Core32_Int64 $s5 + * @var ParagonIE_Sodium_Core32_Int64 $s6 + * @var ParagonIE_Sodium_Core32_Int64 $s7 + * @var ParagonIE_Sodium_Core32_Int64 $s8 + * @var ParagonIE_Sodium_Core32_Int64 $s9 + * @var ParagonIE_Sodium_Core32_Int64 $s10 + * @var ParagonIE_Sodium_Core32_Int64 $s11 + * @var ParagonIE_Sodium_Core32_Int64 $s12 + * @var ParagonIE_Sodium_Core32_Int64 $s13 + * @var ParagonIE_Sodium_Core32_Int64 $s14 + * @var ParagonIE_Sodium_Core32_Int64 $s15 + * @var ParagonIE_Sodium_Core32_Int64 $s16 + * @var ParagonIE_Sodium_Core32_Int64 $s17 + * @var ParagonIE_Sodium_Core32_Int64 $s18 + * @var ParagonIE_Sodium_Core32_Int64 $s19 + * @var ParagonIE_Sodium_Core32_Int64 $s20 + * @var ParagonIE_Sodium_Core32_Int64 $s21 + * @var ParagonIE_Sodium_Core32_Int64 $s22 + * @var ParagonIE_Sodium_Core32_Int64 $s23 + */ + $s0 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($s, 0, 3))); + $s1 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 2, 4)) >> 5)); + $s2 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 5, 3)) >> 2)); + $s3 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 7, 4)) >> 7)); + $s4 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 10, 4)) >> 4)); + $s5 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 13, 3)) >> 1)); + $s6 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 15, 4)) >> 6)); + $s7 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 18, 4)) >> 3)); + $s8 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($s, 21, 3))); + $s9 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 23, 4)) >> 5)); + $s10 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 26, 3)) >> 2)); + $s11 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 28, 4)) >> 7)); + $s12 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 31, 4)) >> 4)); + $s13 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 34, 3)) >> 1)); + $s14 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 36, 4)) >> 6)); + $s15 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 39, 4)) >> 3)); + $s16 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & self::load_3(self::substr($s, 42, 3))); + $s17 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 44, 4)) >> 5)); + $s18 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 47, 3)) >> 2)); + $s19 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 49, 4)) >> 7)); + $s20 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 52, 4)) >> 4)); + $s21 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_3(self::substr($s, 55, 3)) >> 1)); + $s22 = ParagonIE_Sodium_Core32_Int64::fromInt(2097151 & (self::load_4(self::substr($s, 57, 4)) >> 6)); + $s23 = ParagonIE_Sodium_Core32_Int64::fromInt(0x1fffffff & (self::load_4(self::substr($s, 60, 4)) >> 3)); + + $s11 = $s11->addInt64($s23->mulInt(666643, 20)); + $s12 = $s12->addInt64($s23->mulInt(470296, 19)); + $s13 = $s13->addInt64($s23->mulInt(654183, 20)); + $s14 = $s14->subInt64($s23->mulInt(997805, 20)); + $s15 = $s15->addInt64($s23->mulInt(136657, 18)); + $s16 = $s16->subInt64($s23->mulInt(683901, 20)); + + $s10 = $s10->addInt64($s22->mulInt(666643, 20)); + $s11 = $s11->addInt64($s22->mulInt(470296, 19)); + $s12 = $s12->addInt64($s22->mulInt(654183, 20)); + $s13 = $s13->subInt64($s22->mulInt(997805, 20)); + $s14 = $s14->addInt64($s22->mulInt(136657, 18)); + $s15 = $s15->subInt64($s22->mulInt(683901, 20)); + + $s9 = $s9->addInt64($s21->mulInt(666643, 20)); + $s10 = $s10->addInt64($s21->mulInt(470296, 19)); + $s11 = $s11->addInt64($s21->mulInt(654183, 20)); + $s12 = $s12->subInt64($s21->mulInt(997805, 20)); + $s13 = $s13->addInt64($s21->mulInt(136657, 18)); + $s14 = $s14->subInt64($s21->mulInt(683901, 20)); + + $s8 = $s8->addInt64($s20->mulInt(666643, 20)); + $s9 = $s9->addInt64($s20->mulInt(470296, 19)); + $s10 = $s10->addInt64($s20->mulInt(654183, 20)); + $s11 = $s11->subInt64($s20->mulInt(997805, 20)); + $s12 = $s12->addInt64($s20->mulInt(136657, 18)); + $s13 = $s13->subInt64($s20->mulInt(683901, 20)); + + $s7 = $s7->addInt64($s19->mulInt(666643, 20)); + $s8 = $s8->addInt64($s19->mulInt(470296, 19)); + $s9 = $s9->addInt64($s19->mulInt(654183, 20)); + $s10 = $s10->subInt64($s19->mulInt(997805, 20)); + $s11 = $s11->addInt64($s19->mulInt(136657, 18)); + $s12 = $s12->subInt64($s19->mulInt(683901, 20)); + + $s6 = $s6->addInt64($s18->mulInt(666643, 20)); + $s7 = $s7->addInt64($s18->mulInt(470296, 19)); + $s8 = $s8->addInt64($s18->mulInt(654183, 20)); + $s9 = $s9->subInt64($s18->mulInt(997805, 20)); + $s10 = $s10->addInt64($s18->mulInt(136657, 18)); + $s11 = $s11->subInt64($s18->mulInt(683901, 20)); + + $carry6 = $s6->addInt(1 << 20)->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry8 = $s8->addInt(1 << 20)->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry10 = $s10->addInt(1 << 20)->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + $carry12 = $s12->addInt(1 << 20)->shiftRight(21); + $s13 = $s13->addInt64($carry12); + $s12 = $s12->subInt64($carry12->shiftLeft(21)); + $carry14 = $s14->addInt(1 << 20)->shiftRight(21); + $s15 = $s15->addInt64($carry14); + $s14 = $s14->subInt64($carry14->shiftLeft(21)); + $carry16 = $s16->addInt(1 << 20)->shiftRight(21); + $s17 = $s17->addInt64($carry16); + $s16 = $s16->subInt64($carry16->shiftLeft(21)); + + $carry7 = $s7->addInt(1 << 20)->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry9 = $s9->addInt(1 << 20)->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry11 = $s11->addInt(1 << 20)->shiftRight(21); + $s12 = $s12->addInt64($carry11); + $s11 = $s11->subInt64($carry11->shiftLeft(21)); + $carry13 = $s13->addInt(1 << 20)->shiftRight(21); + $s14 = $s14->addInt64($carry13); + $s13 = $s13->subInt64($carry13->shiftLeft(21)); + $carry15 = $s15->addInt(1 << 20)->shiftRight(21); + $s16 = $s16->addInt64($carry15); + $s15 = $s15->subInt64($carry15->shiftLeft(21)); + + $s5 = $s5->addInt64($s17->mulInt(666643, 20)); + $s6 = $s6->addInt64($s17->mulInt(470296, 19)); + $s7 = $s7->addInt64($s17->mulInt(654183, 20)); + $s8 = $s8->subInt64($s17->mulInt(997805, 20)); + $s9 = $s9->addInt64($s17->mulInt(136657, 18)); + $s10 = $s10->subInt64($s17->mulInt(683901, 20)); + + $s4 = $s4->addInt64($s16->mulInt(666643, 20)); + $s5 = $s5->addInt64($s16->mulInt(470296, 19)); + $s6 = $s6->addInt64($s16->mulInt(654183, 20)); + $s7 = $s7->subInt64($s16->mulInt(997805, 20)); + $s8 = $s8->addInt64($s16->mulInt(136657, 18)); + $s9 = $s9->subInt64($s16->mulInt(683901, 20)); + + $s3 = $s3->addInt64($s15->mulInt(666643, 20)); + $s4 = $s4->addInt64($s15->mulInt(470296, 19)); + $s5 = $s5->addInt64($s15->mulInt(654183, 20)); + $s6 = $s6->subInt64($s15->mulInt(997805, 20)); + $s7 = $s7->addInt64($s15->mulInt(136657, 18)); + $s8 = $s8->subInt64($s15->mulInt(683901, 20)); + + $s2 = $s2->addInt64($s14->mulInt(666643, 20)); + $s3 = $s3->addInt64($s14->mulInt(470296, 19)); + $s4 = $s4->addInt64($s14->mulInt(654183, 20)); + $s5 = $s5->subInt64($s14->mulInt(997805, 20)); + $s6 = $s6->addInt64($s14->mulInt(136657, 18)); + $s7 = $s7->subInt64($s14->mulInt(683901, 20)); + + $s1 = $s1->addInt64($s13->mulInt(666643, 20)); + $s2 = $s2->addInt64($s13->mulInt(470296, 19)); + $s3 = $s3->addInt64($s13->mulInt(654183, 20)); + $s4 = $s4->subInt64($s13->mulInt(997805, 20)); + $s5 = $s5->addInt64($s13->mulInt(136657, 18)); + $s6 = $s6->subInt64($s13->mulInt(683901, 20)); + + $s0 = $s0->addInt64($s12->mulInt(666643, 20)); + $s1 = $s1->addInt64($s12->mulInt(470296, 19)); + $s2 = $s2->addInt64($s12->mulInt(654183, 20)); + $s3 = $s3->subInt64($s12->mulInt(997805, 20)); + $s4 = $s4->addInt64($s12->mulInt(136657, 18)); + $s5 = $s5->subInt64($s12->mulInt(683901, 20)); + $s12 = new ParagonIE_Sodium_Core32_Int64(); + + $carry0 = $s0->addInt(1 << 20)->shiftRight(21); + $s1 = $s1->addInt64($carry0); + $s0 = $s0->subInt64($carry0->shiftLeft(21)); + $carry2 = $s2->addInt(1 << 20)->shiftRight(21); + $s3 = $s3->addInt64($carry2); + $s2 = $s2->subInt64($carry2->shiftLeft(21)); + $carry4 = $s4->addInt(1 << 20)->shiftRight(21); + $s5 = $s5->addInt64($carry4); + $s4 = $s4->subInt64($carry4->shiftLeft(21)); + $carry6 = $s6->addInt(1 << 20)->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry8 = $s8->addInt(1 << 20)->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry10 = $s10->addInt(1 << 20)->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + $carry1 = $s1->addInt(1 << 20)->shiftRight(21); + $s2 = $s2->addInt64($carry1); + $s1 = $s1->subInt64($carry1->shiftLeft(21)); + $carry3 = $s3->addInt(1 << 20)->shiftRight(21); + $s4 = $s4->addInt64($carry3); + $s3 = $s3->subInt64($carry3->shiftLeft(21)); + $carry5 = $s5->addInt(1 << 20)->shiftRight(21); + $s6 = $s6->addInt64($carry5); + $s5 = $s5->subInt64($carry5->shiftLeft(21)); + $carry7 = $s7->addInt(1 << 20)->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry9 = $s9->addInt(1 << 20)->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry11 = $s11->addInt(1 << 20)->shiftRight(21); + $s12 = $s12->addInt64($carry11); + $s11 = $s11->subInt64($carry11->shiftLeft(21)); + + $s0 = $s0->addInt64($s12->mulInt(666643, 20)); + $s1 = $s1->addInt64($s12->mulInt(470296, 19)); + $s2 = $s2->addInt64($s12->mulInt(654183, 20)); + $s3 = $s3->subInt64($s12->mulInt(997805, 20)); + $s4 = $s4->addInt64($s12->mulInt(136657, 18)); + $s5 = $s5->subInt64($s12->mulInt(683901, 20)); + $s12 = new ParagonIE_Sodium_Core32_Int64(); + + $carry0 = $s0->shiftRight(21); + $s1 = $s1->addInt64($carry0); + $s0 = $s0->subInt64($carry0->shiftLeft(21)); + $carry1 = $s1->shiftRight(21); + $s2 = $s2->addInt64($carry1); + $s1 = $s1->subInt64($carry1->shiftLeft(21)); + $carry2 = $s2->shiftRight(21); + $s3 = $s3->addInt64($carry2); + $s2 = $s2->subInt64($carry2->shiftLeft(21)); + $carry3 = $s3->shiftRight(21); + $s4 = $s4->addInt64($carry3); + $s3 = $s3->subInt64($carry3->shiftLeft(21)); + $carry4 = $s4->shiftRight(21); + $s5 = $s5->addInt64($carry4); + $s4 = $s4->subInt64($carry4->shiftLeft(21)); + $carry5 = $s5->shiftRight(21); + $s6 = $s6->addInt64($carry5); + $s5 = $s5->subInt64($carry5->shiftLeft(21)); + $carry6 = $s6->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry7 = $s7->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry8 = $s8->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry9 = $s9->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry10 = $s10->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + $carry11 = $s11->shiftRight(21); + $s12 = $s12->addInt64($carry11); + $s11 = $s11->subInt64($carry11->shiftLeft(21)); + + $s0 = $s0->addInt64($s12->mulInt(666643, 20)); + $s1 = $s1->addInt64($s12->mulInt(470296, 19)); + $s2 = $s2->addInt64($s12->mulInt(654183, 20)); + $s3 = $s3->subInt64($s12->mulInt(997805, 20)); + $s4 = $s4->addInt64($s12->mulInt(136657, 18)); + $s5 = $s5->subInt64($s12->mulInt(683901, 20)); + + $carry0 = $s0->shiftRight(21); + $s1 = $s1->addInt64($carry0); + $s0 = $s0->subInt64($carry0->shiftLeft(21)); + $carry1 = $s1->shiftRight(21); + $s2 = $s2->addInt64($carry1); + $s1 = $s1->subInt64($carry1->shiftLeft(21)); + $carry2 = $s2->shiftRight(21); + $s3 = $s3->addInt64($carry2); + $s2 = $s2->subInt64($carry2->shiftLeft(21)); + $carry3 = $s3->shiftRight(21); + $s4 = $s4->addInt64($carry3); + $s3 = $s3->subInt64($carry3->shiftLeft(21)); + $carry4 = $s4->shiftRight(21); + $s5 = $s5->addInt64($carry4); + $s4 = $s4->subInt64($carry4->shiftLeft(21)); + $carry5 = $s5->shiftRight(21); + $s6 = $s6->addInt64($carry5); + $s5 = $s5->subInt64($carry5->shiftLeft(21)); + $carry6 = $s6->shiftRight(21); + $s7 = $s7->addInt64($carry6); + $s6 = $s6->subInt64($carry6->shiftLeft(21)); + $carry7 = $s7->shiftRight(21); + $s8 = $s8->addInt64($carry7); + $s7 = $s7->subInt64($carry7->shiftLeft(21)); + $carry8 = $s8->shiftRight(21); + $s9 = $s9->addInt64($carry8); + $s8 = $s8->subInt64($carry8->shiftLeft(21)); + $carry9 = $s9->shiftRight(21); + $s10 = $s10->addInt64($carry9); + $s9 = $s9->subInt64($carry9->shiftLeft(21)); + $carry10 = $s10->shiftRight(21); + $s11 = $s11->addInt64($carry10); + $s10 = $s10->subInt64($carry10->shiftLeft(21)); + + $S0 = $s0->toInt32()->toInt(); + $S1 = $s1->toInt32()->toInt(); + $S2 = $s2->toInt32()->toInt(); + $S3 = $s3->toInt32()->toInt(); + $S4 = $s4->toInt32()->toInt(); + $S5 = $s5->toInt32()->toInt(); + $S6 = $s6->toInt32()->toInt(); + $S7 = $s7->toInt32()->toInt(); + $S8 = $s8->toInt32()->toInt(); + $S9 = $s9->toInt32()->toInt(); + $S10 = $s10->toInt32()->toInt(); + $S11 = $s11->toInt32()->toInt(); + + /** + * @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_Core32_Curve25519_Ge_P3 $A + * @return ParagonIE_Sodium_Core32_Curve25519_Ge_P3 + * @throws SodiumException + * @throws TypeError + */ + 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, + 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_Core32_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); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php new file mode 100644 index 0000000..5fe10f7 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Fe.php @@ -0,0 +1,185 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Fe', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Curve25519_Fe + * + * This represents a Field Element + */ +class ParagonIE_Sodium_Core32_Curve25519_Fe implements ArrayAccess +{ + /** + * @var array<int, ParagonIE_Sodium_Core32_Int32> + */ + protected $container = array(); + + /** + * @var int + */ + protected $size = 10; + + /** + * @internal You should not use this directly from another application + * + * @param array<int, ParagonIE_Sodium_Core32_Int32> $array + * @param bool $save_indexes + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromArray($array, $save_indexes = null) + { + $count = count($array); + if ($save_indexes) { + $keys = array_keys($array); + } else { + $keys = range(0, $count - 1); + } + $array = array_values($array); + + $obj = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + if ($save_indexes) { + for ($i = 0; $i < $count; ++$i) { + $array[$i]->overflow = 0; + $obj->offsetSet($keys[$i], $array[$i]); + } + } else { + for ($i = 0; $i < $count; ++$i) { + $array[$i]->overflow = 0; + $obj->offsetSet($i, $array[$i]); + } + } + return $obj; + } + + /** + * @internal You should not use this directly from another application + * + * @param array<int, int> $array + * @param bool $save_indexes + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromIntArray($array, $save_indexes = null) + { + $count = count($array); + if ($save_indexes) { + $keys = array_keys($array); + } else { + $keys = range(0, $count - 1); + } + $array = array_values($array); + $set = array(); + /** @var int $i */ + /** @var int $v */ + foreach ($array as $i => $v) { + $set[$i] = ParagonIE_Sodium_Core32_Int32::fromInt($v); + } + + $obj = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + if ($save_indexes) { + for ($i = 0; $i < $count; ++$i) { + $set[$i]->overflow = 0; + $obj->offsetSet($keys[$i], $set[$i]); + } + } else { + for ($i = 0; $i < $count; ++$i) { + $set[$i]->overflow = 0; + $obj->offsetSet($i, $set[$i]); + } + } + return $obj; + } + + /** + * @internal You should not use this directly from another application + * + * @param mixed $offset + * @param mixed $value + * @return void + * @throws SodiumException + * @throws TypeError + */ + public function offsetSet($offset, $value) + { + if (!($value instanceof ParagonIE_Sodium_Core32_Int32)) { + throw new InvalidArgumentException('Expected an instance of ParagonIE_Sodium_Core32_Int32'); + } + if (is_null($offset)) { + $this->container[] = $value; + } else { + ParagonIE_Sodium_Core32_Util::declareScalarType($offset, 'int', 1); + $this->container[(int) $offset] = $value; + } + } + + /** + * @internal You should not use this directly from another application + * + * @param mixed $offset + * @return bool + * @psalm-suppress MixedArrayOffset + */ + public function offsetExists($offset) + { + return isset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param mixed $offset + * @return void + * @psalm-suppress MixedArrayOffset + */ + public function offsetUnset($offset) + { + unset($this->container[$offset]); + } + + /** + * @internal You should not use this directly from another application + * + * @param mixed $offset + * @return ParagonIE_Sodium_Core32_Int32 + * @psalm-suppress MixedArrayOffset + */ + public function offsetGet($offset) + { + if (!isset($this->container[$offset])) { + $this->container[(int) $offset] = new ParagonIE_Sodium_Core32_Int32(); + } + /** @var ParagonIE_Sodium_Core32_Int32 $get */ + $get = $this->container[$offset]; + return $get; + } + + /** + * @internal You should not use this directly from another application + * + * @return array + */ + public function __debugInfo() + { + if (empty($this->container)) { + return array(); + } + $c = array( + (int) ($this->container[0]->toInt()), + (int) ($this->container[1]->toInt()), + (int) ($this->container[2]->toInt()), + (int) ($this->container[3]->toInt()), + (int) ($this->container[4]->toInt()), + (int) ($this->container[5]->toInt()), + (int) ($this->container[6]->toInt()), + (int) ($this->container[7]->toInt()), + (int) ($this->container[8]->toInt()), + (int) ($this->container[9]->toInt()) + ); + return array(implode(', ', $c)); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/Cached.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/Cached.php new file mode 100644 index 0000000..970481f --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/Cached.php @@ -0,0 +1,65 @@ +<?php + + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Ge_Cached', false)) { + return; +} +/** + * Class ParagonIE_Sodium_Core32_Curve25519_Ge_Cached + */ +class ParagonIE_Sodium_Core32_Curve25519_Ge_Cached +{ + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $YplusX; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $YminusX; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $Z; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $T2d; + + /** + * ParagonIE_Sodium_Core32_Curve25519_Ge_Cached constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $YplusX + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $YminusX + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $Z + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $T2d + */ + public function __construct( + ParagonIE_Sodium_Core32_Curve25519_Fe $YplusX = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $YminusX = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $Z = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $T2d = null + ) { + if ($YplusX === null) { + $YplusX = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->YplusX = $YplusX; + if ($YminusX === null) { + $YminusX = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->YminusX = $YminusX; + if ($Z === null) { + $Z = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->Z = $Z; + if ($T2d === null) { + $T2d = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->T2d = $T2d; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P1p1.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P1p1.php new file mode 100644 index 0000000..ff10b1d --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P1p1.php @@ -0,0 +1,67 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1', false)) { + return; +} +/** + * Class ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 + */ +class ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 +{ + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $X; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $Y; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $Z; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $T; + + /** + * ParagonIE_Sodium_Core32_Curve25519_Ge_P1p1 constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $x + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $y + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $z + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $t + * + * @throws SodiumException + * @throws TypeError + */ + public function __construct( + ParagonIE_Sodium_Core32_Curve25519_Fe $x = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $y = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $z = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $t = null + ) { + if ($x === null) { + $x = ParagonIE_Sodium_Core32_Curve25519::fe_0(); + } + $this->X = $x; + if ($y === null) { + $y = ParagonIE_Sodium_Core32_Curve25519::fe_0(); + } + $this->Y = $y; + if ($z === null) { + $z = ParagonIE_Sodium_Core32_Curve25519::fe_0(); + } + $this->Z = $z; + if ($t === null) { + $t = ParagonIE_Sodium_Core32_Curve25519::fe_0(); + } + $this->T = $t; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P2.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P2.php new file mode 100644 index 0000000..8a45a91 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P2.php @@ -0,0 +1,54 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Ge_P2', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Curve25519_Ge_P2 + */ +class ParagonIE_Sodium_Core32_Curve25519_Ge_P2 +{ + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $X; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $Y; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $Z; + + /** + * ParagonIE_Sodium_Core32_Curve25519_Ge_P2 constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $x + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $y + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $z + */ + public function __construct( + ParagonIE_Sodium_Core32_Curve25519_Fe $x = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $y = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $z = null + ) { + if ($x === null) { + $x = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->X = $x; + if ($y === null) { + $y = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->Y = $y; + if ($z === null) { + $z = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->Z = $z; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P3.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P3.php new file mode 100644 index 0000000..c9e4b16 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/P3.php @@ -0,0 +1,65 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Ge_P3', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Curve25519_Ge_P3 + */ +class ParagonIE_Sodium_Core32_Curve25519_Ge_P3 +{ + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $X; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $Y; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $Z; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $T; + + /** + * ParagonIE_Sodium_Core32_Curve25519_Ge_P3 constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $x + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $y + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $z + * @param ParagonIE_Sodium_Core32_Curve25519_Fe|null $t + */ + public function __construct( + ParagonIE_Sodium_Core32_Curve25519_Fe $x = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $y = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $z = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $t = null + ) { + if ($x === null) { + $x = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->X = $x; + if ($y === null) { + $y = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->Y = $y; + if ($z === null) { + $z = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->Z = $z; + if ($t === null) { + $t = new ParagonIE_Sodium_Core32_Curve25519_Fe(); + } + $this->T = $t; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/Precomp.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/Precomp.php new file mode 100644 index 0000000..b590b75 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/Ge/Precomp.php @@ -0,0 +1,56 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp + */ +class ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp +{ + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $yplusx; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $yminusx; + + /** + * @var ParagonIE_Sodium_Core32_Curve25519_Fe + */ + public $xy2d; + + /** + * ParagonIE_Sodium_Core32_Curve25519_Ge_Precomp constructor. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $yplusx + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $yminusx + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $xy2d + * @throws SodiumException + * @throws TypeError + */ + public function __construct( + ParagonIE_Sodium_Core32_Curve25519_Fe $yplusx = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $yminusx = null, + ParagonIE_Sodium_Core32_Curve25519_Fe $xy2d = null + ) { + if ($yplusx === null) { + $yplusx = ParagonIE_Sodium_Core32_Curve25519::fe_0(); + } + $this->yplusx = $yplusx; + if ($yminusx === null) { + $yminusx = ParagonIE_Sodium_Core32_Curve25519::fe_0(); + } + $this->yminusx = $yminusx; + if ($xy2d === null) { + $xy2d = ParagonIE_Sodium_Core32_Curve25519::fe_0(); + } + $this->xy2d = $xy2d; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/H.php b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/H.php new file mode 100644 index 0000000..48c999a --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/H.php @@ -0,0 +1,1467 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Curve25519_H', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Curve25519_H + * + * This just contains the constants in the ref10/base.h file + */ +class ParagonIE_Sodium_Core32_Curve25519_H extends ParagonIE_Sodium_Core32_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, 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-27310482, -7316562, -10498527, -16307831, -23479533, -9371869, -21393143, 2465074), + array(20017163, -4323226, 27915242, 1529148, 12396362, 15675764, 13817261, -9658066, 2463391, -4622140), + ), + array( + array(-16358878, -12663911, -12065183, 4996454, -1256422, 1073572, 9583558, 12851107, 4003896, 12673717), + array(-1731589, -15155870, -3262930, 16143082, 19294135, 13385325, 14741514, -9103726, 7903886, 2348101), + array(24536016, -16515207, 12715592, -3862155, 1511293, 10047386, -3842346, -7129159, -28377538, 10048127), + ), + ), + array( + array( + array(-12622226, -6204820, 30718825, 2591312, -10617028, 12192840, 18873298, -7297090, -32297756, 15221632), + array(-26478122, -11103864, 11546244, -1852483, 9180880, 7656409, -21343950, 2095755, 29769758, 6593415), + array(-31994208, -2907461, 4176912, 3264766, 12538965, -868111, 26312345, -6118678, 30958054, 8292160), + ), + array( + array(31429822, -13959116, 29173532, 15632448, 12174511, -2760094, 32808831, 3977186, 26143136, -3148876), + array(22648901, 1402143, -22799984, 13746059, 7936347, 365344, -8668633, -1674433, -3758243, -2304625), + array(-15491917, 8012313, -2514730, -12702462, -23965846, -10254029, -1612713, -1535569, -16664475, 8194478), + ), + array( + array(27338066, -7507420, -7414224, 10140405, -19026427, -6589889, 27277191, 8855376, 28572286, 3005164), + array(26287124, 4821776, 25476601, -4145903, -3764513, -15788984, -18008582, 1182479, -26094821, -13079595), + array(-7171154, 3178080, 23970071, 6201893, -17195577, -4489192, -21876275, -13982627, 32208683, -1198248), + ), + array( + array(-16657702, 2817643, -10286362, 14811298, 6024667, 13349505, -27315504, -10497842, -27672585, -11539858), + array(15941029, -9405932, -21367050, 8062055, 31876073, -238629, -15278393, -1444429, 15397331, -4130193), + array(8934485, -13485467, -23286397, -13423241, -32446090, 14047986, 31170398, -1441021, -27505566, 15087184), + ), + array( + array(-18357243, -2156491, 24524913, -16677868, 15520427, -6360776, -15502406, 11461896, 16788528, -5868942), + array(-1947386, 16013773, 21750665, 3714552, -17401782, -16055433, -3770287, -10323320, 31322514, -11615635), + array(21426655, -5650218, -13648287, -5347537, -28812189, -4920970, -18275391, -14621414, 13040862, -12112948), + ), + 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<int, array<int, array<int, int>>> 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 + ); +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Curve25519/README.md b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/README.md new file mode 100644 index 0000000..e8097fa --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Curve25519/README.md @@ -0,0 +1,3 @@ +# Curve25519 Data Structures + +These are PHP implementation of the [structs used in the ref10 curve25519 code](https://github.com/jedisct1/libsodium/blob/master/src/libsodium/include/sodium/private/curve25519_ref10.h). diff --git a/vendor/paragonie/sodium_compat/src/Core32/Ed25519.php b/vendor/paragonie/sodium_compat/src/Core32/Ed25519.php new file mode 100644 index 0000000..284ff14 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Ed25519.php @@ -0,0 +1,482 @@ +<?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;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/Core32/HChaCha20.php b/vendor/paragonie/sodium_compat/src/Core32/HChaCha20.php new file mode 100644 index 0000000..551d995 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/HChaCha20.php @@ -0,0 +1,127 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_HChaCha20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_HChaCha20 + */ +class ParagonIE_Sodium_Core32_HChaCha20 extends ParagonIE_Sodium_Core32_ChaCha20 +{ + /** + * @param string $in + * @param string $key + * @param string|null $c + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function hChaCha20($in = '', $key = '', $c = null) + { + $ctx = array(); + + if ($c === null) { + $ctx[0] = new ParagonIE_Sodium_Core32_Int32(array(0x6170, 0x7865)); + $ctx[1] = new ParagonIE_Sodium_Core32_Int32(array(0x3320, 0x646e)); + $ctx[2] = new ParagonIE_Sodium_Core32_Int32(array(0x7962, 0x2d32)); + $ctx[3] = new ParagonIE_Sodium_Core32_Int32(array(0x6b20, 0x6574)); + } else { + $ctx[0] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 0, 4)); + $ctx[1] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 4, 4)); + $ctx[2] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 8, 4)); + $ctx[3] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 12, 4)); + } + $ctx[4] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 0, 4)); + $ctx[5] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 4, 4)); + $ctx[6] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 8, 4)); + $ctx[7] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 12, 4)); + $ctx[8] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 16, 4)); + $ctx[9] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 20, 4)); + $ctx[10] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 24, 4)); + $ctx[11] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 28, 4)); + $ctx[12] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 0, 4)); + $ctx[13] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 4, 4)); + $ctx[14] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 8, 4)); + $ctx[15] = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 12, 4)); + + return self::hChaCha20Bytes($ctx); + } + + /** + * @param array $ctx + * @return string + * @throws SodiumException + * @throws TypeError + */ + protected static function hChaCha20Bytes(array $ctx) + { + /** @var ParagonIE_Sodium_Core32_Int32 $x0 */ + $x0 = $ctx[0]; + /** @var ParagonIE_Sodium_Core32_Int32 $x1 */ + $x1 = $ctx[1]; + /** @var ParagonIE_Sodium_Core32_Int32 $x2 */ + $x2 = $ctx[2]; + /** @var ParagonIE_Sodium_Core32_Int32 $x3 */ + $x3 = $ctx[3]; + /** @var ParagonIE_Sodium_Core32_Int32 $x4 */ + $x4 = $ctx[4]; + /** @var ParagonIE_Sodium_Core32_Int32 $x5 */ + $x5 = $ctx[5]; + /** @var ParagonIE_Sodium_Core32_Int32 $x6 */ + $x6 = $ctx[6]; + /** @var ParagonIE_Sodium_Core32_Int32 $x7 */ + $x7 = $ctx[7]; + /** @var ParagonIE_Sodium_Core32_Int32 $x8 */ + $x8 = $ctx[8]; + /** @var ParagonIE_Sodium_Core32_Int32 $x9 */ + $x9 = $ctx[9]; + /** @var ParagonIE_Sodium_Core32_Int32 $x10 */ + $x10 = $ctx[10]; + /** @var ParagonIE_Sodium_Core32_Int32 $x11 */ + $x11 = $ctx[11]; + /** @var ParagonIE_Sodium_Core32_Int32 $x12 */ + $x12 = $ctx[12]; + /** @var ParagonIE_Sodium_Core32_Int32 $x13 */ + $x13 = $ctx[13]; + /** @var ParagonIE_Sodium_Core32_Int32 $x14 */ + $x14 = $ctx[14]; + /** @var ParagonIE_Sodium_Core32_Int32 $x15 */ + $x15 = $ctx[15]; + + for ($i = 0; $i < 10; ++$i) { + # QUARTERROUND( x0, x4, x8, x12) + list($x0, $x4, $x8, $x12) = self::quarterRound($x0, $x4, $x8, $x12); + + # QUARTERROUND( x1, x5, x9, x13) + list($x1, $x5, $x9, $x13) = self::quarterRound($x1, $x5, $x9, $x13); + + # QUARTERROUND( x2, x6, x10, x14) + list($x2, $x6, $x10, $x14) = self::quarterRound($x2, $x6, $x10, $x14); + + # QUARTERROUND( x3, x7, x11, x15) + list($x3, $x7, $x11, $x15) = self::quarterRound($x3, $x7, $x11, $x15); + + # QUARTERROUND( x0, x5, x10, x15) + list($x0, $x5, $x10, $x15) = self::quarterRound($x0, $x5, $x10, $x15); + + # QUARTERROUND( x1, x6, x11, x12) + list($x1, $x6, $x11, $x12) = self::quarterRound($x1, $x6, $x11, $x12); + + # QUARTERROUND( x2, x7, x8, x13) + list($x2, $x7, $x8, $x13) = self::quarterRound($x2, $x7, $x8, $x13); + + # QUARTERROUND( x3, x4, x9, x14) + list($x3, $x4, $x9, $x14) = self::quarterRound($x3, $x4, $x9, $x14); + } + + return $x0->toReverseString() . + $x1->toReverseString() . + $x2->toReverseString() . + $x3->toReverseString() . + $x12->toReverseString() . + $x13->toReverseString() . + $x14->toReverseString() . + $x15->toReverseString(); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php b/vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php new file mode 100644 index 0000000..39287f2 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/HSalsa20.php @@ -0,0 +1,141 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_HSalsa20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_HSalsa20 + */ +abstract class ParagonIE_Sodium_Core32_HSalsa20 extends ParagonIE_Sodium_Core32_Salsa20 +{ + /** + * Calculate an hsalsa20 hash of a single block + * + * HSalsa20 doesn't have a counter and will never be used for more than + * one block (used to derive a subkey for xsalsa20). + * + * @internal You should not use this directly from another application + * + * @param string $in + * @param string $k + * @param string|null $c + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function hsalsa20($in, $k, $c = null) + { + /** + * @var ParagonIE_Sodium_Core32_Int32 $x0 + * @var ParagonIE_Sodium_Core32_Int32 $x1 + * @var ParagonIE_Sodium_Core32_Int32 $x2 + * @var ParagonIE_Sodium_Core32_Int32 $x3 + * @var ParagonIE_Sodium_Core32_Int32 $x4 + * @var ParagonIE_Sodium_Core32_Int32 $x5 + * @var ParagonIE_Sodium_Core32_Int32 $x6 + * @var ParagonIE_Sodium_Core32_Int32 $x7 + * @var ParagonIE_Sodium_Core32_Int32 $x8 + * @var ParagonIE_Sodium_Core32_Int32 $x9 + * @var ParagonIE_Sodium_Core32_Int32 $x10 + * @var ParagonIE_Sodium_Core32_Int32 $x11 + * @var ParagonIE_Sodium_Core32_Int32 $x12 + * @var ParagonIE_Sodium_Core32_Int32 $x13 + * @var ParagonIE_Sodium_Core32_Int32 $x14 + * @var ParagonIE_Sodium_Core32_Int32 $x15 + * @var ParagonIE_Sodium_Core32_Int32 $j0 + * @var ParagonIE_Sodium_Core32_Int32 $j1 + * @var ParagonIE_Sodium_Core32_Int32 $j2 + * @var ParagonIE_Sodium_Core32_Int32 $j3 + * @var ParagonIE_Sodium_Core32_Int32 $j4 + * @var ParagonIE_Sodium_Core32_Int32 $j5 + * @var ParagonIE_Sodium_Core32_Int32 $j6 + * @var ParagonIE_Sodium_Core32_Int32 $j7 + * @var ParagonIE_Sodium_Core32_Int32 $j8 + * @var ParagonIE_Sodium_Core32_Int32 $j9 + * @var ParagonIE_Sodium_Core32_Int32 $j10 + * @var ParagonIE_Sodium_Core32_Int32 $j11 + * @var ParagonIE_Sodium_Core32_Int32 $j12 + * @var ParagonIE_Sodium_Core32_Int32 $j13 + * @var ParagonIE_Sodium_Core32_Int32 $j14 + * @var ParagonIE_Sodium_Core32_Int32 $j15 + */ + if (self::strlen($k) < 32) { + throw new RangeException('Key must be 32 bytes long'); + } + if ($c === null) { + $x0 = new ParagonIE_Sodium_Core32_Int32(array(0x6170, 0x7865)); + $x5 = new ParagonIE_Sodium_Core32_Int32(array(0x3320, 0x646e)); + $x10 = new ParagonIE_Sodium_Core32_Int32(array(0x7962, 0x2d32)); + $x15 = new ParagonIE_Sodium_Core32_Int32(array(0x6b20, 0x6574)); + } else { + $x0 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 0, 4)); + $x5 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 4, 4)); + $x10 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 8, 4)); + $x15 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 12, 4)); + } + $x1 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 0, 4)); + $x2 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 4, 4)); + $x3 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 8, 4)); + $x4 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 12, 4)); + $x6 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 0, 4)); + $x7 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 4, 4)); + $x8 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 8, 4)); + $x9 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 12, 4)); + $x11 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 16, 4)); + $x12 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 20, 4)); + $x13 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 24, 4)); + $x14 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 28, 4)); + + for ($i = self::ROUNDS; $i > 0; $i -= 2) { + $x4 = $x4->xorInt32($x0->addInt32($x12)->rotateLeft(7)); + $x8 = $x8->xorInt32($x4->addInt32($x0)->rotateLeft(9)); + $x12 = $x12->xorInt32($x8->addInt32($x4)->rotateLeft(13)); + $x0 = $x0->xorInt32($x12->addInt32($x8)->rotateLeft(18)); + + $x9 = $x9->xorInt32($x5->addInt32($x1)->rotateLeft(7)); + $x13 = $x13->xorInt32($x9->addInt32($x5)->rotateLeft(9)); + $x1 = $x1->xorInt32($x13->addInt32($x9)->rotateLeft(13)); + $x5 = $x5->xorInt32($x1->addInt32($x13)->rotateLeft(18)); + + $x14 = $x14->xorInt32($x10->addInt32($x6)->rotateLeft(7)); + $x2 = $x2->xorInt32($x14->addInt32($x10)->rotateLeft(9)); + $x6 = $x6->xorInt32($x2->addInt32($x14)->rotateLeft(13)); + $x10 = $x10->xorInt32($x6->addInt32($x2)->rotateLeft(18)); + + $x3 = $x3->xorInt32($x15->addInt32($x11)->rotateLeft(7)); + $x7 = $x7->xorInt32($x3->addInt32($x15)->rotateLeft(9)); + $x11 = $x11->xorInt32($x7->addInt32($x3)->rotateLeft(13)); + $x15 = $x15->xorInt32($x11->addInt32($x7)->rotateLeft(18)); + + $x1 = $x1->xorInt32($x0->addInt32($x3)->rotateLeft(7)); + $x2 = $x2->xorInt32($x1->addInt32($x0)->rotateLeft(9)); + $x3 = $x3->xorInt32($x2->addInt32($x1)->rotateLeft(13)); + $x0 = $x0->xorInt32($x3->addInt32($x2)->rotateLeft(18)); + + $x6 = $x6->xorInt32($x5->addInt32($x4)->rotateLeft(7)); + $x7 = $x7->xorInt32($x6->addInt32($x5)->rotateLeft(9)); + $x4 = $x4->xorInt32($x7->addInt32($x6)->rotateLeft(13)); + $x5 = $x5->xorInt32($x4->addInt32($x7)->rotateLeft(18)); + + $x11 = $x11->xorInt32($x10->addInt32($x9)->rotateLeft(7)); + $x8 = $x8->xorInt32($x11->addInt32($x10)->rotateLeft(9)); + $x9 = $x9->xorInt32($x8->addInt32($x11)->rotateLeft(13)); + $x10 = $x10->xorInt32($x9->addInt32($x8)->rotateLeft(18)); + + $x12 = $x12->xorInt32($x15->addInt32($x14)->rotateLeft(7)); + $x13 = $x13->xorInt32($x12->addInt32($x15)->rotateLeft(9)); + $x14 = $x14->xorInt32($x13->addInt32($x12)->rotateLeft(13)); + $x15 = $x15->xorInt32($x14->addInt32($x13)->rotateLeft(18)); + } + + return $x0->toReverseString() . + $x5->toReverseString() . + $x10->toReverseString() . + $x15->toReverseString() . + $x6->toReverseString() . + $x7->toReverseString() . + $x8->toReverseString() . + $x9->toReverseString(); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Int32.php b/vendor/paragonie/sodium_compat/src/Core32/Int32.php new file mode 100644 index 0000000..c3a1790 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Int32.php @@ -0,0 +1,871 @@ +<?php + +/** + * Class ParagonIE_Sodium_Core32_Int32 + * + * Encapsulates a 32-bit integer. + * + * These are immutable. It always returns a new instance. + */ +class ParagonIE_Sodium_Core32_Int32 +{ + /** + * @var array<int, int> - two 16-bit integers + * + * 0 is the higher 16 bits + * 1 is the lower 16 bits + */ + public $limbs = array(0, 0); + + /** + * @var int + */ + public $overflow = 0; + + /** + * @var bool + */ + public $unsignedInt = false; + + /** + * ParagonIE_Sodium_Core32_Int32 constructor. + * @param array $array + * @param bool $unsignedInt + */ + public function __construct($array = array(0, 0), $unsignedInt = false) + { + $this->limbs = array( + (int) $array[0], + (int) $array[1] + ); + $this->overflow = 0; + $this->unsignedInt = $unsignedInt; + } + + /** + * Adds two int32 objects + * + * @param ParagonIE_Sodium_Core32_Int32 $addend + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function addInt32(ParagonIE_Sodium_Core32_Int32 $addend) + { + $i0 = $this->limbs[0]; + $i1 = $this->limbs[1]; + $j0 = $addend->limbs[0]; + $j1 = $addend->limbs[1]; + + $r1 = $i1 + ($j1 & 0xffff); + $carry = $r1 >> 16; + + $r0 = $i0 + ($j0 & 0xffff) + $carry; + $carry = $r0 >> 16; + + $r0 &= 0xffff; + $r1 &= 0xffff; + + $return = new ParagonIE_Sodium_Core32_Int32( + array($r0, $r1) + ); + $return->overflow = $carry; + $return->unsignedInt = $this->unsignedInt; + return $return; + } + + /** + * Adds a normal integer to an int32 object + * + * @param int $int + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + */ + public function addInt($int) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($int, 'int', 1); + /** @var int $int */ + $int = (int) $int; + + $int = (int) $int; + + $i0 = $this->limbs[0]; + $i1 = $this->limbs[1]; + + $r1 = $i1 + ($int & 0xffff); + $carry = $r1 >> 16; + + $r0 = $i0 + (($int >> 16) & 0xffff) + $carry; + $carry = $r0 >> 16; + $r0 &= 0xffff; + $r1 &= 0xffff; + $return = new ParagonIE_Sodium_Core32_Int32( + array($r0, $r1) + ); + $return->overflow = $carry; + $return->unsignedInt = $this->unsignedInt; + return $return; + } + + /** + * @param int $b + * @return int + */ + public function compareInt($b = 0) + { + $gt = 0; + $eq = 1; + + $i = 2; + $j = 0; + while ($i > 0) { + --$i; + /** @var int $x1 */ + $x1 = $this->limbs[$i]; + /** @var int $x2 */ + $x2 = ($b >> ($j << 4)) & 0xffff; + /** @var int $gt */ + $gt |= (($x2 - $x1) >> 8) & $eq; + /** @var int $eq */ + $eq &= (($x2 ^ $x1) - 1) >> 8; + } + return ($gt + $gt - $eq) + 1; + } + + /** + * @param int $m + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function mask($m = 0) + { + /** @var int $hi */ + $hi = ($m >> 16) & 0xffff; + /** @var int $lo */ + $lo = ($m & 0xffff); + return new ParagonIE_Sodium_Core32_Int32( + array( + (int) ($this->limbs[0] & $hi), + (int) ($this->limbs[1] & $lo) + ), + $this->unsignedInt + ); + } + + /** + * @param array<int, int> $a + * @param array<int, int> $b + * @param int $baseLog2 + * @return array<int, int> + */ + public function multiplyLong(array $a, array $b, $baseLog2 = 16) + { + $a_l = count($a); + $b_l = count($b); + /** @var array<int, int> $r */ + $r = array_fill(0, $a_l + $b_l + 1, 0); + $base = 1 << $baseLog2; + for ($i = 0; $i < $a_l; ++$i) { + $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; + $r[$i + $j + 1] += $carry; + } + } + return array_slice($r, 0, 5); + } + + /** + * @param int $int + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function mulIntFast($int) + { + // Handle negative numbers + $aNeg = ($this->limbs[0] >> 15) & 1; + $bNeg = ($int >> 31) & 1; + $a = array_reverse($this->limbs); + $b = array( + $int & 0xffff, + ($int >> 16) & 0xffff + ); + if ($aNeg) { + for ($i = 0; $i < 2; ++$i) { + $a[$i] = ($a[$i] ^ 0xffff) & 0xffff; + } + ++$a[0]; + } + if ($bNeg) { + for ($i = 0; $i < 2; ++$i) { + $b[$i] = ($b[$i] ^ 0xffff) & 0xffff; + } + ++$b[0]; + } + // Multiply + $res = $this->multiplyLong($a, $b); + + // Re-apply negation to results + if ($aNeg !== $bNeg) { + for ($i = 0; $i < 2; ++$i) { + $res[$i] = (0xffff ^ $res[$i]) & 0xffff; + } + // Handle integer overflow + $c = 1; + for ($i = 0; $i < 2; ++$i) { + $res[$i] += $c; + $c = $res[$i] >> 16; + $res[$i] &= 0xffff; + } + } + + // Return our values + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->limbs = array( + $res[1] & 0xffff, + $res[0] & 0xffff + ); + if (count($res) > 2) { + $return->overflow = $res[2] & 0xffff; + } + $return->unsignedInt = $this->unsignedInt; + return $return; + } + + /** + * @param ParagonIE_Sodium_Core32_Int32 $right + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function mulInt32Fast(ParagonIE_Sodium_Core32_Int32 $right) + { + $aNeg = ($this->limbs[0] >> 15) & 1; + $bNeg = ($right->limbs[0] >> 15) & 1; + + $a = array_reverse($this->limbs); + $b = array_reverse($right->limbs); + if ($aNeg) { + for ($i = 0; $i < 2; ++$i) { + $a[$i] = ($a[$i] ^ 0xffff) & 0xffff; + } + ++$a[0]; + } + if ($bNeg) { + for ($i = 0; $i < 2; ++$i) { + $b[$i] = ($b[$i] ^ 0xffff) & 0xffff; + } + ++$b[0]; + } + $res = $this->multiplyLong($a, $b); + if ($aNeg !== $bNeg) { + if ($aNeg !== $bNeg) { + for ($i = 0; $i < 2; ++$i) { + $res[$i] = ($res[$i] ^ 0xffff) & 0xffff; + } + $c = 1; + for ($i = 0; $i < 2; ++$i) { + $res[$i] += $c; + $c = $res[$i] >> 16; + $res[$i] &= 0xffff; + } + } + } + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->limbs = array( + $res[1] & 0xffff, + $res[0] & 0xffff + ); + if (count($res) > 2) { + $return->overflow = $res[2]; + } + return $return; + } + + /** + * @param int $int + * @param int $size + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + */ + public function mulInt($int = 0, $size = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($int, 'int', 1); + ParagonIE_Sodium_Core32_Util::declareScalarType($size, 'int', 2); + if (ParagonIE_Sodium_Compat::$fastMult) { + return $this->mulIntFast((int) $int); + } + /** @var int $int */ + $int = (int) $int; + /** @var int $size */ + $size = (int) $size; + + if (!$size) { + $size = 31; + } + /** @var int $size */ + + $a = clone $this; + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + + // Initialize: + $ret0 = 0; + $ret1 = 0; + $a0 = $a->limbs[0]; + $a1 = $a->limbs[1]; + + /** @var int $size */ + /** @var int $i */ + for ($i = $size; $i >= 0; --$i) { + $m = (int) (-($int & 1)); + $x0 = $a0 & $m; + $x1 = $a1 & $m; + + $ret1 += $x1; + $c = $ret1 >> 16; + + $ret0 += $x0 + $c; + + $ret0 &= 0xffff; + $ret1 &= 0xffff; + + $a1 = ($a1 << 1); + $x1 = $a1 >> 16; + $a0 = ($a0 << 1) | $x1; + $a0 &= 0xffff; + $a1 &= 0xffff; + $int >>= 1; + } + $return->limbs[0] = $ret0; + $return->limbs[1] = $ret1; + return $return; + } + + /** + * @param ParagonIE_Sodium_Core32_Int32 $int + * @param int $size + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + */ + public function mulInt32(ParagonIE_Sodium_Core32_Int32 $int, $size = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($size, 'int', 2); + if (ParagonIE_Sodium_Compat::$fastMult) { + return $this->mulInt32Fast($int); + } + if (!$size) { + $size = 31; + } + /** @var int $size */ + + $a = clone $this; + $b = clone $int; + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + + // Initialize: + $ret0 = 0; + $ret1 = 0; + $a0 = $a->limbs[0]; + $a1 = $a->limbs[1]; + $b0 = $b->limbs[0]; + $b1 = $b->limbs[1]; + + /** @var int $size */ + /** @var int $i */ + for ($i = $size; $i >= 0; --$i) { + $m = (int) (-($b1 & 1)); + $x0 = $a0 & $m; + $x1 = $a1 & $m; + + $ret1 += $x1; + $c = $ret1 >> 16; + + $ret0 += $x0 + $c; + + $ret0 &= 0xffff; + $ret1 &= 0xffff; + + $a1 = ($a1 << 1); + $x1 = $a1 >> 16; + $a0 = ($a0 << 1) | $x1; + $a0 &= 0xffff; + $a1 &= 0xffff; + + $x0 = ($b0 & 1) << 16; + $b0 = ($b0 >> 1); + $b1 = (($b1 | $x0) >> 1); + + $b0 &= 0xffff; + $b1 &= 0xffff; + + } + $return->limbs[0] = $ret0; + $return->limbs[1] = $ret1; + + return $return; + } + + /** + * OR this 32-bit integer with another. + * + * @param ParagonIE_Sodium_Core32_Int32 $b + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function orInt32(ParagonIE_Sodium_Core32_Int32 $b) + { + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + $return->limbs = array( + (int) ($this->limbs[0] | $b->limbs[0]), + (int) ($this->limbs[1] | $b->limbs[1]) + ); + /** @var int overflow */ + $return->overflow = $this->overflow | $b->overflow; + return $return; + } + + /** + * @param int $b + * @return bool + */ + public function isGreaterThan($b = 0) + { + return $this->compareInt($b) > 0; + } + + /** + * @param int $b + * @return bool + */ + public function isLessThanInt($b = 0) + { + return $this->compareInt($b) < 0; + } + + /** + * @param int $c + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedArrayAccess + */ + public function rotateLeft($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + /** @var int $c */ + $c = (int) $c; + + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + $c &= 31; + if ($c === 0) { + // NOP, but we want a copy. + $return->limbs = $this->limbs; + } else { + /** @var int $c */ + + /** @var int $idx_shift */ + $idx_shift = ($c >> 4) & 1; + + /** @var int $sub_shift */ + $sub_shift = $c & 15; + + /** @var array<int, int> $limbs */ + $limbs =& $return->limbs; + + /** @var array<int, int> $myLimbs */ + $myLimbs =& $this->limbs; + + for ($i = 1; $i >= 0; --$i) { + /** @var int $j */ + $j = ($i + $idx_shift) & 1; + /** @var int $k */ + $k = ($i + $idx_shift + 1) & 1; + $limbs[$i] = (int) ( + ( + ((int) ($myLimbs[$j]) << $sub_shift) + | + ((int) ($myLimbs[$k]) >> (16 - $sub_shift)) + ) & 0xffff + ); + } + } + return $return; + } + + /** + * Rotate to the right + * + * @param int $c + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedArrayAccess + */ + public function rotateRight($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + /** @var int $c */ + $c = (int) $c; + + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + $c &= 31; + /** @var int $c */ + if ($c === 0) { + // NOP, but we want a copy. + $return->limbs = $this->limbs; + } else { + /** @var int $c */ + + /** @var int $idx_shift */ + $idx_shift = ($c >> 4) & 1; + + /** @var int $sub_shift */ + $sub_shift = $c & 15; + + /** @var array<int, int> $limbs */ + $limbs =& $return->limbs; + + /** @var array<int, int> $myLimbs */ + $myLimbs =& $this->limbs; + + for ($i = 1; $i >= 0; --$i) { + /** @var int $j */ + $j = ($i - $idx_shift) & 1; + /** @var int $k */ + $k = ($i - $idx_shift - 1) & 1; + $limbs[$i] = (int) ( + ( + ((int) ($myLimbs[$j]) >> (int) ($sub_shift)) + | + ((int) ($myLimbs[$k]) << (16 - (int) ($sub_shift))) + ) & 0xffff + ); + } + } + return $return; + } + + /** + * @param bool $bool + * @return self + */ + public function setUnsignedInt($bool = false) + { + $this->unsignedInt = !empty($bool); + return $this; + } + + /** + * @param int $c + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + */ + public function shiftLeft($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + /** @var int $c */ + $c = (int) $c; + + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + $c &= 63; + /** @var int $c */ + if ($c === 0) { + $return->limbs = $this->limbs; + } elseif ($c < 0) { + /** @var int $c */ + return $this->shiftRight(-$c); + } else { + /** @var int $c */ + /** @var int $tmp */ + $tmp = $this->limbs[1] << $c; + $return->limbs[1] = (int)($tmp & 0xffff); + /** @var int $carry */ + $carry = $tmp >> 16; + + /** @var int $tmp */ + $tmp = ($this->limbs[0] << $c) | ($carry & 0xffff); + $return->limbs[0] = (int) ($tmp & 0xffff); + } + return $return; + } + + /** + * @param int $c + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedAssignment + * @psalm-suppress MixedOperand + */ + public function shiftRight($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + /** @var int $c */ + $c = (int) $c; + + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + $c &= 63; + /** @var int $c */ + if ($c >= 16) { + $return->limbs = array( + (int) ($this->overflow & 0xffff), + (int) ($this->limbs[0]) + ); + $return->overflow = $this->overflow >> 16; + return $return->shiftRight($c & 15); + } + if ($c === 0) { + $return->limbs = $this->limbs; + } elseif ($c < 0) { + /** @var int $c */ + return $this->shiftLeft(-$c); + } else { + if (!is_int($c)) { + throw new TypeError(); + } + /** @var int $c */ + // $return->limbs[0] = (int) (($this->limbs[0] >> $c) & 0xffff); + $carryLeft = (int) ($this->overflow & ((1 << ($c + 1)) - 1)); + $return->limbs[0] = (int) ((($this->limbs[0] >> $c) | ($carryLeft << (16 - $c))) & 0xffff); + $carryRight = (int) ($this->limbs[0] & ((1 << ($c + 1)) - 1)); + $return->limbs[1] = (int) ((($this->limbs[1] >> $c) | ($carryRight << (16 - $c))) & 0xffff); + $return->overflow >>= $c; + } + return $return; + } + + /** + * Subtract a normal integer from an int32 object. + * + * @param int $int + * @return ParagonIE_Sodium_Core32_Int32 + * @throws SodiumException + * @throws TypeError + */ + public function subInt($int) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($int, 'int', 1); + /** @var int $int */ + $int = (int) $int; + + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + + /** @var int $tmp */ + $tmp = $this->limbs[1] - ($int & 0xffff); + /** @var int $carry */ + $carry = $tmp >> 16; + $return->limbs[1] = (int) ($tmp & 0xffff); + + /** @var int $tmp */ + $tmp = $this->limbs[0] - (($int >> 16) & 0xffff) + $carry; + $return->limbs[0] = (int) ($tmp & 0xffff); + return $return; + } + + /** + * Subtract two int32 objects from each other + * + * @param ParagonIE_Sodium_Core32_Int32 $b + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function subInt32(ParagonIE_Sodium_Core32_Int32 $b) + { + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + + /** @var int $tmp */ + $tmp = $this->limbs[1] - ($b->limbs[1] & 0xffff); + /** @var int $carry */ + $carry = $tmp >> 16; + $return->limbs[1] = (int) ($tmp & 0xffff); + + /** @var int $tmp */ + $tmp = $this->limbs[0] - ($b->limbs[0] & 0xffff) + $carry; + $return->limbs[0] = (int) ($tmp & 0xffff); + return $return; + } + + /** + * XOR this 32-bit integer with another. + * + * @param ParagonIE_Sodium_Core32_Int32 $b + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function xorInt32(ParagonIE_Sodium_Core32_Int32 $b) + { + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->unsignedInt = $this->unsignedInt; + $return->limbs = array( + (int) ($this->limbs[0] ^ $b->limbs[0]), + (int) ($this->limbs[1] ^ $b->limbs[1]) + ); + return $return; + } + + /** + * @param int $signed + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromInt($signed) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($signed, 'int', 1);; + /** @var int $signed */ + $signed = (int) $signed; + + return new ParagonIE_Sodium_Core32_Int32( + array( + (int) (($signed >> 16) & 0xffff), + (int) ($signed & 0xffff) + ) + ); + } + + /** + * @param string $string + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromString($string) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($string, 'string', 1); + $string = (string) $string; + if (ParagonIE_Sodium_Core32_Util::strlen($string) !== 4) { + throw new RangeException( + 'String must be 4 bytes; ' . ParagonIE_Sodium_Core32_Util::strlen($string) . ' given.' + ); + } + $return = new ParagonIE_Sodium_Core32_Int32(); + + $return->limbs[0] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[0]) & 0xff) << 8); + $return->limbs[0] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[1]) & 0xff); + $return->limbs[1] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[2]) & 0xff) << 8); + $return->limbs[1] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[3]) & 0xff); + return $return; + } + + /** + * @param string $string + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromReverseString($string) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($string, 'string', 1); + $string = (string) $string; + if (ParagonIE_Sodium_Core32_Util::strlen($string) !== 4) { + throw new RangeException( + 'String must be 4 bytes; ' . ParagonIE_Sodium_Core32_Util::strlen($string) . ' given.' + ); + } + $return = new ParagonIE_Sodium_Core32_Int32(); + + $return->limbs[0] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[3]) & 0xff) << 8); + $return->limbs[0] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[2]) & 0xff); + $return->limbs[1] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[1]) & 0xff) << 8); + $return->limbs[1] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[0]) & 0xff); + return $return; + } + + /** + * @return array<int, int> + */ + public function toArray() + { + return array((int) ($this->limbs[0] << 16 | $this->limbs[1])); + } + + /** + * @return string + * @throws TypeError + */ + public function toString() + { + return + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[0] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[0] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[1] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[1] & 0xff); + } + + /** + * @return int + */ + public function toInt() + { + return (int) ( + (($this->limbs[0] & 0xffff) << 16) + | + ($this->limbs[1] & 0xffff) + ); + } + + /** + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function toInt32() + { + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->limbs[0] = (int) ($this->limbs[0] & 0xffff); + $return->limbs[1] = (int) ($this->limbs[1] & 0xffff); + $return->unsignedInt = $this->unsignedInt; + $return->overflow = (int) ($this->overflow & 0x7fffffff); + return $return; + } + + /** + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function toInt64() + { + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + if ($this->unsignedInt) { + $return->limbs[0] += (($this->overflow >> 16) & 0xffff); + $return->limbs[1] += (($this->overflow) & 0xffff); + } else { + $neg = -(($this->limbs[0] >> 15) & 1); + $return->limbs[0] = (int)($neg & 0xffff); + $return->limbs[1] = (int)($neg & 0xffff); + } + $return->limbs[2] = (int) ($this->limbs[0] & 0xffff); + $return->limbs[3] = (int) ($this->limbs[1] & 0xffff); + return $return; + } + + /** + * @return string + * @throws TypeError + */ + public function toReverseString() + { + return ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[1] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[1] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[0] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[0] >> 8) & 0xff); + } + + /** + * @return string + */ + public function __toString() + { + try { + return $this->toString(); + } catch (TypeError $ex) { + // PHP engine can't handle exceptions from __toString() + return ''; + } + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Int64.php b/vendor/paragonie/sodium_compat/src/Core32/Int64.php new file mode 100644 index 0000000..dd06a3f --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Int64.php @@ -0,0 +1,1066 @@ +<?php + +/** + * Class ParagonIE_Sodium_Core32_Int64 + * + * Encapsulates a 64-bit integer. + * + * These are immutable. It always returns a new instance. + */ +class ParagonIE_Sodium_Core32_Int64 +{ + /** + * @var array<int, int> - four 16-bit integers + */ + public $limbs = array(0, 0, 0, 0); + + /** + * @var int + */ + public $overflow = 0; + + /** + * @var bool + */ + public $unsignedInt = false; + + /** + * ParagonIE_Sodium_Core32_Int64 constructor. + * @param array $array + * @param bool $unsignedInt + */ + public function __construct($array = array(0, 0, 0, 0), $unsignedInt = false) + { + $this->limbs = array( + (int) $array[0], + (int) $array[1], + (int) $array[2], + (int) $array[3] + ); + $this->overflow = 0; + $this->unsignedInt = $unsignedInt; + } + + /** + * Adds two int64 objects + * + * @param ParagonIE_Sodium_Core32_Int64 $addend + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function addInt64(ParagonIE_Sodium_Core32_Int64 $addend) + { + $i0 = $this->limbs[0]; + $i1 = $this->limbs[1]; + $i2 = $this->limbs[2]; + $i3 = $this->limbs[3]; + $j0 = $addend->limbs[0]; + $j1 = $addend->limbs[1]; + $j2 = $addend->limbs[2]; + $j3 = $addend->limbs[3]; + + $r3 = $i3 + ($j3 & 0xffff); + $carry = $r3 >> 16; + + $r2 = $i2 + ($j2 & 0xffff) + $carry; + $carry = $r2 >> 16; + + $r1 = $i1 + ($j1 & 0xffff) + $carry; + $carry = $r1 >> 16; + + $r0 = $i0 + ($j0 & 0xffff) + $carry; + $carry = $r0 >> 16; + + $r0 &= 0xffff; + $r1 &= 0xffff; + $r2 &= 0xffff; + $r3 &= 0xffff; + + $return = new ParagonIE_Sodium_Core32_Int64( + array($r0, $r1, $r2, $r3) + ); + $return->overflow = $carry; + $return->unsignedInt = $this->unsignedInt; + return $return; + } + + /** + * Adds a normal integer to an int64 object + * + * @param int $int + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + */ + public function addInt($int) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($int, 'int', 1); + /** @var int $int */ + $int = (int) $int; + + $i0 = $this->limbs[0]; + $i1 = $this->limbs[1]; + $i2 = $this->limbs[2]; + $i3 = $this->limbs[3]; + + $r3 = $i3 + ($int & 0xffff); + $carry = $r3 >> 16; + + $r2 = $i2 + (($int >> 16) & 0xffff) + $carry; + $carry = $r2 >> 16; + + $r1 = $i1 + $carry; + $carry = $r1 >> 16; + + $r0 = $i0 + $carry; + $carry = $r0 >> 16; + + $r0 &= 0xffff; + $r1 &= 0xffff; + $r2 &= 0xffff; + $r3 &= 0xffff; + $return = new ParagonIE_Sodium_Core32_Int64( + array($r0, $r1, $r2, $r3) + ); + $return->overflow = $carry; + $return->unsignedInt = $this->unsignedInt; + return $return; + } + + /** + * @param int $b + * @return int + */ + public function compareInt($b = 0) + { + $gt = 0; + $eq = 1; + + $i = 4; + $j = 0; + while ($i > 0) { + --$i; + /** @var int $x1 */ + $x1 = $this->limbs[$i]; + /** @var int $x2 */ + $x2 = ($b >> ($j << 4)) & 0xffff; + /** int */ + $gt |= (($x2 - $x1) >> 8) & $eq; + /** int */ + $eq &= (($x2 ^ $x1) - 1) >> 8; + } + return ($gt + $gt - $eq) + 1; + } + + /** + * @param int $b + * @return bool + */ + public function isGreaterThan($b = 0) + { + return $this->compareInt($b) > 0; + } + + /** + * @param int $b + * @return bool + */ + public function isLessThanInt($b = 0) + { + return $this->compareInt($b) < 0; + } + + /** + * @param int $hi + * @param int $lo + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function mask64($hi = 0, $lo = 0) + { + /** @var int $a */ + $a = ($hi >> 16) & 0xffff; + /** @var int $b */ + $b = ($hi) & 0xffff; + /** @var int $c */ + $c = ($lo >> 16) & 0xffff; + /** @var int $d */ + $d = ($lo & 0xffff); + return new ParagonIE_Sodium_Core32_Int64( + array( + $this->limbs[0] & $a, + $this->limbs[1] & $b, + $this->limbs[2] & $c, + $this->limbs[3] & $d + ), + $this->unsignedInt + ); + } + + /** + * @param int $int + * @param int $size + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedAssignment + */ + public function mulInt($int = 0, $size = 0) + { + if (ParagonIE_Sodium_Compat::$fastMult) { + return $this->mulIntFast($int); + } + ParagonIE_Sodium_Core32_Util::declareScalarType($int, 'int', 1); + ParagonIE_Sodium_Core32_Util::declareScalarType($size, 'int', 2); + /** @var int $int */ + $int = (int) $int; + /** @var int $size */ + $size = (int) $size; + + if (!$size) { + $size = 63; + } + + $a = clone $this; + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + + // Initialize: + $ret0 = 0; + $ret1 = 0; + $ret2 = 0; + $ret3 = 0; + $a0 = $a->limbs[0]; + $a1 = $a->limbs[1]; + $a2 = $a->limbs[2]; + $a3 = $a->limbs[3]; + + /** @var int $size */ + /** @var int $i */ + for ($i = $size; $i >= 0; --$i) { + $mask = -($int & 1); + $x0 = $a0 & $mask; + $x1 = $a1 & $mask; + $x2 = $a2 & $mask; + $x3 = $a3 & $mask; + + $ret3 += $x3; + $c = $ret3 >> 16; + + $ret2 += $x2 + $c; + $c = $ret2 >> 16; + + $ret1 += $x1 + $c; + $c = $ret1 >> 16; + + $ret0 += $x0 + $c; + + $ret0 &= 0xffff; + $ret1 &= 0xffff; + $ret2 &= 0xffff; + $ret3 &= 0xffff; + + $a3 = $a3 << 1; + $x3 = $a3 >> 16; + $a2 = ($a2 << 1) | $x3; + $x2 = $a2 >> 16; + $a1 = ($a1 << 1) | $x2; + $x1 = $a1 >> 16; + $a0 = ($a0 << 1) | $x1; + $a0 &= 0xffff; + $a1 &= 0xffff; + $a2 &= 0xffff; + $a3 &= 0xffff; + + $int >>= 1; + } + $return->limbs[0] = $ret0; + $return->limbs[1] = $ret1; + $return->limbs[2] = $ret2; + $return->limbs[3] = $ret3; + return $return; + } + + /** + * @param ParagonIE_Sodium_Core32_Int64 $A + * @param ParagonIE_Sodium_Core32_Int64 $B + * @return array<int, ParagonIE_Sodium_Core32_Int64> + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedInferredReturnType + */ + public static function ctSelect( + ParagonIE_Sodium_Core32_Int64 $A, + ParagonIE_Sodium_Core32_Int64 $B + ) { + $a = clone $A; + $b = clone $B; + /** @var int $aNeg */ + $aNeg = ($a->limbs[0] >> 15) & 1; + /** @var int $bNeg */ + $bNeg = ($b->limbs[0] >> 15) & 1; + /** @var int $m */ + $m = (-($aNeg & $bNeg)) | 1; + /** @var int $swap */ + $swap = $bNeg & ~$aNeg; + /** @var int $d */ + $d = -$swap; + + /* + if ($bNeg && !$aNeg) { + $a = clone $int; + $b = clone $this; + } elseif($bNeg && $aNeg) { + $a = $this->mulInt(-1); + $b = $int->mulInt(-1); + } + */ + $x = $a->xorInt64($b)->mask64($d, $d); + return array( + $a->xorInt64($x)->mulInt($m), + $b->xorInt64($x)->mulInt($m) + ); + } + + /** + * @param array<int, int> $a + * @param array<int, int> $b + * @param int $baseLog2 + * @return array<int, int> + */ + public function multiplyLong(array $a, array $b, $baseLog2 = 16) + { + $a_l = count($a); + $b_l = count($b); + /** @var array<int, int> $r */ + $r = array_fill(0, $a_l + $b_l + 1, 0); + $base = 1 << $baseLog2; + for ($i = 0; $i < $a_l; ++$i) { + $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; + $r[$i + $j + 1] += $carry; + } + } + return array_slice($r, 0, 5); + } + + /** + * @param int $int + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function mulIntFast($int) + { + // Handle negative numbers + $aNeg = ($this->limbs[0] >> 15) & 1; + $bNeg = ($int >> 31) & 1; + $a = array_reverse($this->limbs); + $b = array( + $int & 0xffff, + ($int >> 16) & 0xffff, + -$bNeg & 0xffff, + -$bNeg & 0xffff + ); + if ($aNeg) { + for ($i = 0; $i < 4; ++$i) { + $a[$i] = ($a[$i] ^ 0xffff) & 0xffff; + } + ++$a[0]; + } + if ($bNeg) { + for ($i = 0; $i < 4; ++$i) { + $b[$i] = ($b[$i] ^ 0xffff) & 0xffff; + } + ++$b[0]; + } + // Multiply + $res = $this->multiplyLong($a, $b); + + // Re-apply negation to results + if ($aNeg !== $bNeg) { + for ($i = 0; $i < 4; ++$i) { + $res[$i] = (0xffff ^ $res[$i]) & 0xffff; + } + // Handle integer overflow + $c = 1; + for ($i = 0; $i < 4; ++$i) { + $res[$i] += $c; + $c = $res[$i] >> 16; + $res[$i] &= 0xffff; + } + } + + // Return our values + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->limbs = array( + $res[3] & 0xffff, + $res[2] & 0xffff, + $res[1] & 0xffff, + $res[0] & 0xffff + ); + if (count($res) > 4) { + $return->overflow = $res[4] & 0xffff; + } + $return->unsignedInt = $this->unsignedInt; + return $return; + } + + /** + * @param ParagonIE_Sodium_Core32_Int64 $right + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function mulInt64Fast(ParagonIE_Sodium_Core32_Int64 $right) + { + $aNeg = ($this->limbs[0] >> 15) & 1; + $bNeg = ($right->limbs[0] >> 15) & 1; + + $a = array_reverse($this->limbs); + $b = array_reverse($right->limbs); + if ($aNeg) { + for ($i = 0; $i < 4; ++$i) { + $a[$i] = ($a[$i] ^ 0xffff) & 0xffff; + } + ++$a[0]; + } + if ($bNeg) { + for ($i = 0; $i < 4; ++$i) { + $b[$i] = ($b[$i] ^ 0xffff) & 0xffff; + } + ++$b[0]; + } + $res = $this->multiplyLong($a, $b); + if ($aNeg !== $bNeg) { + if ($aNeg !== $bNeg) { + for ($i = 0; $i < 4; ++$i) { + $res[$i] = ($res[$i] ^ 0xffff) & 0xffff; + } + $c = 1; + for ($i = 0; $i < 4; ++$i) { + $res[$i] += $c; + $c = $res[$i] >> 16; + $res[$i] &= 0xffff; + } + } + } + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->limbs = array( + $res[3] & 0xffff, + $res[2] & 0xffff, + $res[1] & 0xffff, + $res[0] & 0xffff + ); + if (count($res) > 4) { + $return->overflow = $res[4]; + } + return $return; + } + + /** + * @param ParagonIE_Sodium_Core32_Int64 $int + * @param int $size + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedAssignment + */ + public function mulInt64(ParagonIE_Sodium_Core32_Int64 $int, $size = 0) + { + if (ParagonIE_Sodium_Compat::$fastMult) { + return $this->mulInt64Fast($int); + } + ParagonIE_Sodium_Core32_Util::declareScalarType($size, 'int', 2); + if (!$size) { + $size = 63; + } + list($a, $b) = self::ctSelect($this, $int); + + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + + // Initialize: + $ret0 = 0; + $ret1 = 0; + $ret2 = 0; + $ret3 = 0; + $a0 = $a->limbs[0]; + $a1 = $a->limbs[1]; + $a2 = $a->limbs[2]; + $a3 = $a->limbs[3]; + $b0 = $b->limbs[0]; + $b1 = $b->limbs[1]; + $b2 = $b->limbs[2]; + $b3 = $b->limbs[3]; + + /** @var int $size */ + /** @var int $i */ + for ($i = (int) $size; $i >= 0; --$i) { + $mask = -($b3 & 1); + $x0 = $a0 & $mask; + $x1 = $a1 & $mask; + $x2 = $a2 & $mask; + $x3 = $a3 & $mask; + + $ret3 += $x3; + $c = $ret3 >> 16; + + $ret2 += $x2 + $c; + $c = $ret2 >> 16; + + $ret1 += $x1 + $c; + $c = $ret1 >> 16; + + $ret0 += $x0 + $c; + + $ret0 &= 0xffff; + $ret1 &= 0xffff; + $ret2 &= 0xffff; + $ret3 &= 0xffff; + + $a3 = $a3 << 1; + $x3 = $a3 >> 16; + $a2 = ($a2 << 1) | $x3; + $x2 = $a2 >> 16; + $a1 = ($a1 << 1) | $x2; + $x1 = $a1 >> 16; + $a0 = ($a0 << 1) | $x1; + $a0 &= 0xffff; + $a1 &= 0xffff; + $a2 &= 0xffff; + $a3 &= 0xffff; + + $x0 = ($b0 & 1) << 16; + $x1 = ($b1 & 1) << 16; + $x2 = ($b2 & 1) << 16; + + $b0 = ($b0 >> 1); + $b1 = (($b1 | $x0) >> 1); + $b2 = (($b2 | $x1) >> 1); + $b3 = (($b3 | $x2) >> 1); + + $b0 &= 0xffff; + $b1 &= 0xffff; + $b2 &= 0xffff; + $b3 &= 0xffff; + + } + $return->limbs[0] = $ret0; + $return->limbs[1] = $ret1; + $return->limbs[2] = $ret2; + $return->limbs[3] = $ret3; + + return $return; + } + + /** + * OR this 64-bit integer with another. + * + * @param ParagonIE_Sodium_Core32_Int64 $b + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function orInt64(ParagonIE_Sodium_Core32_Int64 $b) + { + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + $return->limbs = array( + (int) ($this->limbs[0] | $b->limbs[0]), + (int) ($this->limbs[1] | $b->limbs[1]), + (int) ($this->limbs[2] | $b->limbs[2]), + (int) ($this->limbs[3] | $b->limbs[3]) + ); + return $return; + } + + /** + * @param int $c + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedArrayAccess + */ + public function rotateLeft($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + /** @var int $c */ + $c = (int) $c; + + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + $c &= 63; + if ($c === 0) { + // NOP, but we want a copy. + $return->limbs = $this->limbs; + } else { + /** @var array<int, int> $limbs */ + $limbs =& $return->limbs; + + /** @var array<int, int> $myLimbs */ + $myLimbs =& $this->limbs; + + /** @var int $idx_shift */ + $idx_shift = ($c >> 4) & 3; + /** @var int $sub_shift */ + $sub_shift = $c & 15; + + for ($i = 3; $i >= 0; --$i) { + /** @var int $j */ + $j = ($i + $idx_shift) & 3; + /** @var int $k */ + $k = ($i + $idx_shift + 1) & 3; + $limbs[$i] = (int) ( + ( + ((int) ($myLimbs[$j]) << $sub_shift) + | + ((int) ($myLimbs[$k]) >> (16 - $sub_shift)) + ) & 0xffff + ); + } + } + return $return; + } + + /** + * Rotate to the right + * + * @param int $c + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedArrayAccess + */ + public function rotateRight($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + /** @var int $c */ + $c = (int) $c; + + /** @var ParagonIE_Sodium_Core32_Int64 $return */ + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + $c &= 63; + /** @var int $c */ + if ($c === 0) { + // NOP, but we want a copy. + $return->limbs = $this->limbs; + } else { + /** @var array<int, int> $limbs */ + $limbs =& $return->limbs; + + /** @var array<int, int> $myLimbs */ + $myLimbs =& $this->limbs; + + /** @var int $idx_shift */ + $idx_shift = ($c >> 4) & 3; + /** @var int $sub_shift */ + $sub_shift = $c & 15; + + for ($i = 3; $i >= 0; --$i) { + /** @var int $j */ + $j = ($i - $idx_shift) & 3; + /** @var int $k */ + $k = ($i - $idx_shift - 1) & 3; + $limbs[$i] = (int) ( + ( + ((int) ($myLimbs[$j]) >> (int) ($sub_shift)) + | + ((int) ($myLimbs[$k]) << (16 - (int) ($sub_shift))) + ) & 0xffff + ); + } + } + return $return; + } + /** + * @param int $c + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + */ + public function shiftLeft($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + /** @var int $c */ + $c = (int) $c; + + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + $c &= 63; + + if ($c >= 16) { + if ($c >= 48) { + $return->limbs = array( + $this->limbs[3], 0, 0, 0 + ); + } elseif ($c >= 32) { + $return->limbs = array( + $this->limbs[2], $this->limbs[3], 0, 0 + ); + } else { + $return->limbs = array( + $this->limbs[1], $this->limbs[2], $this->limbs[3], 0 + ); + } + return $return->shiftLeft($c & 15); + } + if ($c === 0) { + $return->limbs = $this->limbs; + } elseif ($c < 0) { + /** @var int $c */ + return $this->shiftRight(-$c); + } else { + if (!is_int($c)) { + throw new TypeError(); + } + /** @var int $carry */ + $carry = 0; + for ($i = 3; $i >= 0; --$i) { + /** @var int $tmp */ + $tmp = ($this->limbs[$i] << $c) | ($carry & 0xffff); + $return->limbs[$i] = (int) ($tmp & 0xffff); + /** @var int $carry */ + $carry = $tmp >> 16; + } + } + return $return; + } + + /** + * @param int $c + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + */ + public function shiftRight($c = 0) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($c, 'int', 1); + $c = (int) $c; + /** @var int $c */ + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + $c &= 63; + + $negative = -(($this->limbs[0] >> 15) & 1); + if ($c >= 16) { + if ($c >= 48) { + $return->limbs = array( + (int) ($negative & 0xffff), + (int) ($negative & 0xffff), + (int) ($negative & 0xffff), + (int) $this->limbs[0] + ); + } elseif ($c >= 32) { + $return->limbs = array( + (int) ($negative & 0xffff), + (int) ($negative & 0xffff), + (int) $this->limbs[0], + (int) $this->limbs[1] + ); + } else { + $return->limbs = array( + (int) ($negative & 0xffff), + (int) $this->limbs[0], + (int) $this->limbs[1], + (int) $this->limbs[2] + ); + } + return $return->shiftRight($c & 15); + } + + if ($c === 0) { + $return->limbs = $this->limbs; + } elseif ($c < 0) { + return $this->shiftLeft(-$c); + } else { + if (!is_int($c)) { + throw new TypeError(); + } + /** @var int $carryRight */ + $carryRight = ($negative & 0xffff); + $mask = (int) (((1 << ($c + 1)) - 1) & 0xffff); + for ($i = 0; $i < 4; ++$i) { + $return->limbs[$i] = (int) ( + (($this->limbs[$i] >> $c) | ($carryRight << (16 - $c))) & 0xffff + ); + $carryRight = (int) ($this->limbs[$i] & $mask); + } + } + return $return; + } + + + /** + * Subtract a normal integer from an int64 object. + * + * @param int $int + * @return ParagonIE_Sodium_Core32_Int64 + * @throws SodiumException + * @throws TypeError + */ + public function subInt($int) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($int, 'int', 1); + $int = (int) $int; + + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + + /** @var int $carry */ + $carry = 0; + for ($i = 3; $i >= 0; --$i) { + /** @var int $tmp */ + $tmp = $this->limbs[$i] - (($int >> 16) & 0xffff) + $carry; + /** @var int $carry */ + $carry = $tmp >> 16; + $return->limbs[$i] = (int) ($tmp & 0xffff); + } + return $return; + } + + /** + * The difference between two Int64 objects. + * + * @param ParagonIE_Sodium_Core32_Int64 $b + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function subInt64(ParagonIE_Sodium_Core32_Int64 $b) + { + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + /** @var int $carry */ + $carry = 0; + for ($i = 3; $i >= 0; --$i) { + /** @var int $tmp */ + $tmp = $this->limbs[$i] - $b->limbs[$i] + $carry; + /** @var int $carry */ + $carry = ($tmp >> 16); + $return->limbs[$i] = (int) ($tmp & 0xffff); + } + return $return; + } + + /** + * XOR this 64-bit integer with another. + * + * @param ParagonIE_Sodium_Core32_Int64 $b + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function xorInt64(ParagonIE_Sodium_Core32_Int64 $b) + { + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->unsignedInt = $this->unsignedInt; + $return->limbs = array( + (int) ($this->limbs[0] ^ $b->limbs[0]), + (int) ($this->limbs[1] ^ $b->limbs[1]), + (int) ($this->limbs[2] ^ $b->limbs[2]), + (int) ($this->limbs[3] ^ $b->limbs[3]) + ); + return $return; + } + + /** + * @param int $low + * @param int $high + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromInts($low, $high) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($low, 'int', 1); + ParagonIE_Sodium_Core32_Util::declareScalarType($high, 'int', 2); + + $high = (int) $high; + $low = (int) $low; + return new ParagonIE_Sodium_Core32_Int64( + array( + (int) (($high >> 16) & 0xffff), + (int) ($high & 0xffff), + (int) (($low >> 16) & 0xffff), + (int) ($low & 0xffff) + ) + ); + } + + /** + * @param int $low + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromInt($low) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($low, 'int', 1); + $low = (int) $low; + + return new ParagonIE_Sodium_Core32_Int64( + array( + 0, + 0, + (int) (($low >> 16) & 0xffff), + (int) ($low & 0xffff) + ) + ); + } + + /** + * @return int + */ + public function toInt() + { + return (int) ( + (($this->limbs[2] & 0xffff) << 16) + | + ($this->limbs[3] & 0xffff) + ); + } + + /** + * @param string $string + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromString($string) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($string, 'string', 1); + $string = (string) $string; + if (ParagonIE_Sodium_Core32_Util::strlen($string) !== 8) { + throw new RangeException( + 'String must be 8 bytes; ' . ParagonIE_Sodium_Core32_Util::strlen($string) . ' given.' + ); + } + $return = new ParagonIE_Sodium_Core32_Int64(); + + $return->limbs[0] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[0]) & 0xff) << 8); + $return->limbs[0] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[1]) & 0xff); + $return->limbs[1] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[2]) & 0xff) << 8); + $return->limbs[1] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[3]) & 0xff); + $return->limbs[2] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[4]) & 0xff) << 8); + $return->limbs[2] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[5]) & 0xff); + $return->limbs[3] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[6]) & 0xff) << 8); + $return->limbs[3] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[7]) & 0xff); + return $return; + } + + /** + * @param string $string + * @return self + * @throws SodiumException + * @throws TypeError + */ + public static function fromReverseString($string) + { + ParagonIE_Sodium_Core32_Util::declareScalarType($string, 'string', 1); + $string = (string) $string; + if (ParagonIE_Sodium_Core32_Util::strlen($string) !== 8) { + throw new RangeException( + 'String must be 8 bytes; ' . ParagonIE_Sodium_Core32_Util::strlen($string) . ' given.' + ); + } + $return = new ParagonIE_Sodium_Core32_Int64(); + + $return->limbs[0] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[7]) & 0xff) << 8); + $return->limbs[0] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[6]) & 0xff); + $return->limbs[1] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[5]) & 0xff) << 8); + $return->limbs[1] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[4]) & 0xff); + $return->limbs[2] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[3]) & 0xff) << 8); + $return->limbs[2] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[2]) & 0xff); + $return->limbs[3] = (int) ((ParagonIE_Sodium_Core32_Util::chrToInt($string[1]) & 0xff) << 8); + $return->limbs[3] |= (ParagonIE_Sodium_Core32_Util::chrToInt($string[0]) & 0xff); + return $return; + } + + /** + * @return array<int, int> + */ + public function toArray() + { + return array( + (int) ((($this->limbs[0] & 0xffff) << 16) | ($this->limbs[1] & 0xffff)), + (int) ((($this->limbs[2] & 0xffff) << 16) | ($this->limbs[3] & 0xffff)) + ); + } + + /** + * @return ParagonIE_Sodium_Core32_Int32 + */ + public function toInt32() + { + $return = new ParagonIE_Sodium_Core32_Int32(); + $return->limbs[0] = (int) ($this->limbs[2]); + $return->limbs[1] = (int) ($this->limbs[3]); + $return->unsignedInt = $this->unsignedInt; + $return->overflow = (int) (ParagonIE_Sodium_Core32_Util::abs($this->limbs[1], 16) & 0xffff); + return $return; + } + + /** + * @return ParagonIE_Sodium_Core32_Int64 + */ + public function toInt64() + { + $return = new ParagonIE_Sodium_Core32_Int64(); + $return->limbs[0] = (int) ($this->limbs[0]); + $return->limbs[1] = (int) ($this->limbs[1]); + $return->limbs[2] = (int) ($this->limbs[2]); + $return->limbs[3] = (int) ($this->limbs[3]); + $return->unsignedInt = $this->unsignedInt; + $return->overflow = ParagonIE_Sodium_Core32_Util::abs($this->overflow); + return $return; + } + + /** + * @param bool $bool + * @return self + */ + public function setUnsignedInt($bool = false) + { + $this->unsignedInt = !empty($bool); + return $this; + } + + /** + * @return string + * @throws TypeError + */ + public function toString() + { + return ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[0] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[0] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[1] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[1] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[2] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[2] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[3] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[3] & 0xff); + } + + /** + * @return string + * @throws TypeError + */ + public function toReverseString() + { + return ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[3] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[3] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[2] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[2] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[1] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[1] >> 8) & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr($this->limbs[0] & 0xff) . + ParagonIE_Sodium_Core32_Util::intToChr(($this->limbs[0] >> 8) & 0xff); + } + + /** + * @return string + */ + public function __toString() + { + try { + return $this->toString(); + } catch (TypeError $ex) { + // PHP engine can't handle exceptions from __toString() + return ''; + } + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Poly1305.php b/vendor/paragonie/sodium_compat/src/Core32/Poly1305.php new file mode 100644 index 0000000..b9dfaf3 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Poly1305.php @@ -0,0 +1,63 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Poly1305', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Poly1305 + */ +abstract class ParagonIE_Sodium_Core32_Poly1305 extends ParagonIE_Sodium_Core32_Util +{ + const BLOCK_SIZE = 16; + + /** + * @internal You should not use this directly from another application + * + * @param string $m + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function onetimeauth($m, $key) + { + if (self::strlen($key) < 32) { + throw new InvalidArgumentException( + 'Key must be 32 bytes long.' + ); + } + $state = new ParagonIE_Sodium_Core32_Poly1305_State( + self::substr($key, 0, 32) + ); + return $state + ->update($m) + ->finish(); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $mac + * @param string $m + * @param string $key + * @return bool + * @throws SodiumException + * @throws TypeError + */ + public static function onetimeauth_verify($mac, $m, $key) + { + if (self::strlen($key) < 32) { + throw new InvalidArgumentException( + 'Key must be 32 bytes long.' + ); + } + $state = new ParagonIE_Sodium_Core32_Poly1305_State( + self::substr($key, 0, 32) + ); + $calc = $state + ->update($m) + ->finish(); + return self::verify_16($calc, $mac); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php b/vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php new file mode 100644 index 0000000..d80e1ff --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Poly1305/State.php @@ -0,0 +1,451 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Poly1305_State', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Poly1305_State + */ +class ParagonIE_Sodium_Core32_Poly1305_State extends ParagonIE_Sodium_Core32_Util +{ + /** + * @var array<int, int> + */ + protected $buffer = array(); + + /** + * @var bool + */ + protected $final = false; + + /** + * @var array<int, ParagonIE_Sodium_Core32_Int32> + */ + public $h; + + /** + * @var int + */ + protected $leftover = 0; + + /** + * @var array<int, ParagonIE_Sodium_Core32_Int32> + */ + public $r; + + /** + * @var array<int, ParagonIE_Sodium_Core32_Int64> + */ + public $pad; + + /** + * ParagonIE_Sodium_Core32_Poly1305_State constructor. + * + * @internal You should not use this directly from another application + * + * @param string $key + * @throws InvalidArgumentException + * @throws SodiumException + * @throws TypeError + */ + public function __construct($key = '') + { + if (self::strlen($key) < 32) { + throw new InvalidArgumentException( + 'Poly1305 requires a 32-byte key' + ); + } + /* r &= 0xffffffc0ffffffc0ffffffc0fffffff */ + $this->r = array( + // st->r[0] = ... + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 0, 4)) + ->setUnsignedInt(true) + ->mask(0x3ffffff), + // st->r[1] = ... + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 3, 4)) + ->setUnsignedInt(true) + ->shiftRight(2) + ->mask(0x3ffff03), + // st->r[2] = ... + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 6, 4)) + ->setUnsignedInt(true) + ->shiftRight(4) + ->mask(0x3ffc0ff), + // st->r[3] = ... + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 9, 4)) + ->setUnsignedInt(true) + ->shiftRight(6) + ->mask(0x3f03fff), + // st->r[4] = ... + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 12, 4)) + ->setUnsignedInt(true) + ->shiftRight(8) + ->mask(0x00fffff) + ); + + /* h = 0 */ + $this->h = array( + new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), + new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), + new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), + new ParagonIE_Sodium_Core32_Int32(array(0, 0), true), + new ParagonIE_Sodium_Core32_Int32(array(0, 0), true) + ); + + /* save pad for later */ + $this->pad = array( + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 16, 4)) + ->setUnsignedInt(true)->toInt64(), + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 20, 4)) + ->setUnsignedInt(true)->toInt64(), + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 24, 4)) + ->setUnsignedInt(true)->toInt64(), + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($key, 28, 4)) + ->setUnsignedInt(true)->toInt64(), + ); + + $this->leftover = 0; + $this->final = false; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @return self + * @throws SodiumException + * @throws TypeError + */ + public function update($message = '') + { + $bytes = self::strlen($message); + + /* handle leftover */ + if ($this->leftover) { + /** @var int $want */ + $want = ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE - $this->leftover; + if ($want > $bytes) { + $want = $bytes; + } + for ($i = 0; $i < $want; ++$i) { + $mi = self::chrToInt($message[$i]); + $this->buffer[$this->leftover + $i] = $mi; + } + // We snip off the leftmost bytes. + $message = self::substr($message, $want); + $bytes = self::strlen($message); + $this->leftover += $want; + if ($this->leftover < ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) { + // We still don't have enough to run $this->blocks() + return $this; + } + + $this->blocks( + self::intArrayToString($this->buffer), + ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE + ); + $this->leftover = 0; + } + + /* process full blocks */ + if ($bytes >= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) { + /** @var int $want */ + $want = $bytes & ~(ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE - 1); + if ($want >= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) { + /** @var string $block */ + $block = self::substr($message, 0, $want); + if (self::strlen($block) >= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) { + $this->blocks($block, $want); + $message = self::substr($message, $want); + $bytes = self::strlen($message); + } + } + } + + /* store leftover */ + if ($bytes) { + for ($i = 0; $i < $bytes; ++$i) { + $mi = self::chrToInt($message[$i]); + $this->buffer[$this->leftover + $i] = $mi; + } + $this->leftover = (int) $this->leftover + $bytes; + } + return $this; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param int $bytes + * @return self + * @throws SodiumException + * @throws TypeError + */ + public function blocks($message, $bytes) + { + if (self::strlen($message) < 16) { + $message = str_pad($message, 16, "\x00", STR_PAD_RIGHT); + } + $hibit = ParagonIE_Sodium_Core32_Int32::fromInt((int) ($this->final ? 0 : 1 << 24)); /* 1 << 128 */ + $hibit->setUnsignedInt(true); + $zero = new ParagonIE_Sodium_Core32_Int64(array(0, 0, 0, 0), true); + /** + * @var ParagonIE_Sodium_Core32_Int64 $d0 + * @var ParagonIE_Sodium_Core32_Int64 $d1 + * @var ParagonIE_Sodium_Core32_Int64 $d2 + * @var ParagonIE_Sodium_Core32_Int64 $d3 + * @var ParagonIE_Sodium_Core32_Int64 $d4 + * @var ParagonIE_Sodium_Core32_Int64 $r0 + * @var ParagonIE_Sodium_Core32_Int64 $r1 + * @var ParagonIE_Sodium_Core32_Int64 $r2 + * @var ParagonIE_Sodium_Core32_Int64 $r3 + * @var ParagonIE_Sodium_Core32_Int64 $r4 + * + * @var ParagonIE_Sodium_Core32_Int32 $h0 + * @var ParagonIE_Sodium_Core32_Int32 $h1 + * @var ParagonIE_Sodium_Core32_Int32 $h2 + * @var ParagonIE_Sodium_Core32_Int32 $h3 + * @var ParagonIE_Sodium_Core32_Int32 $h4 + */ + $r0 = $this->r[0]->toInt64(); + $r1 = $this->r[1]->toInt64(); + $r2 = $this->r[2]->toInt64(); + $r3 = $this->r[3]->toInt64(); + $r4 = $this->r[4]->toInt64(); + + $s1 = $r1->toInt64()->mulInt(5, 3); + $s2 = $r2->toInt64()->mulInt(5, 3); + $s3 = $r3->toInt64()->mulInt(5, 3); + $s4 = $r4->toInt64()->mulInt(5, 3); + + $h0 = $this->h[0]; + $h1 = $this->h[1]; + $h2 = $this->h[2]; + $h3 = $this->h[3]; + $h4 = $this->h[4]; + + while ($bytes >= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE) { + /* h += m[i] */ + $h0 = $h0->addInt32( + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 0, 4)) + ->mask(0x3ffffff) + )->toInt64(); + $h1 = $h1->addInt32( + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 3, 4)) + ->shiftRight(2) + ->mask(0x3ffffff) + )->toInt64(); + $h2 = $h2->addInt32( + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 6, 4)) + ->shiftRight(4) + ->mask(0x3ffffff) + )->toInt64(); + $h3 = $h3->addInt32( + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 9, 4)) + ->shiftRight(6) + ->mask(0x3ffffff) + )->toInt64(); + $h4 = $h4->addInt32( + ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($message, 12, 4)) + ->shiftRight(8) + ->orInt32($hibit) + )->toInt64(); + + /* 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)); + + $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)); + + $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)); + + $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)); + + $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)); + + /* (partial) h %= p */ + $c = $d0->shiftRight(26); + $h0 = $d0->toInt32()->mask(0x3ffffff); + $d1 = $d1->addInt64($c); + + $c = $d1->shiftRight(26); + $h1 = $d1->toInt32()->mask(0x3ffffff); + $d2 = $d2->addInt64($c); + + $c = $d2->shiftRight(26); + $h2 = $d2->toInt32()->mask(0x3ffffff); + $d3 = $d3->addInt64($c); + + $c = $d3->shiftRight(26); + $h3 = $d3->toInt32()->mask(0x3ffffff); + $d4 = $d4->addInt64($c); + + $c = $d4->shiftRight(26); + $h4 = $d4->toInt32()->mask(0x3ffffff); + $h0 = $h0->addInt32($c->toInt32()->mulInt(5, 3)); + + $c = $h0->shiftRight(26); + $h0 = $h0->mask(0x3ffffff); + $h1 = $h1->addInt32($c); + + // Chop off the left 32 bytes. + $message = self::substr( + $message, + ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE + ); + $bytes -= ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE; + } + + /** @var array<int, ParagonIE_Sodium_Core32_Int32> $h */ + $this->h = array($h0, $h1, $h2, $h3, $h4); + return $this; + } + + /** + * @internal You should not use this directly from another application + * + * @return string + * @throws SodiumException + * @throws TypeError + */ + public function finish() + { + /* process the remaining block */ + if ($this->leftover) { + $i = $this->leftover; + $this->buffer[$i++] = 1; + for (; $i < ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE; ++$i) { + $this->buffer[$i] = 0; + } + $this->final = true; + $this->blocks( + self::substr( + self::intArrayToString($this->buffer), + 0, + ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE + ), + $b = ParagonIE_Sodium_Core32_Poly1305::BLOCK_SIZE + ); + } + + /** + * @var ParagonIE_Sodium_Core32_Int32 $f + * @var ParagonIE_Sodium_Core32_Int32 $g0 + * @var ParagonIE_Sodium_Core32_Int32 $g1 + * @var ParagonIE_Sodium_Core32_Int32 $g2 + * @var ParagonIE_Sodium_Core32_Int32 $g3 + * @var ParagonIE_Sodium_Core32_Int32 $g4 + * @var ParagonIE_Sodium_Core32_Int32 $h0 + * @var ParagonIE_Sodium_Core32_Int32 $h1 + * @var ParagonIE_Sodium_Core32_Int32 $h2 + * @var ParagonIE_Sodium_Core32_Int32 $h3 + * @var ParagonIE_Sodium_Core32_Int32 $h4 + */ + $h0 = $this->h[0]; + $h1 = $this->h[1]; + $h2 = $this->h[2]; + $h3 = $this->h[3]; + $h4 = $this->h[4]; + + $c = $h1->shiftRight(26); # $c = $h1 >> 26; + $h1 = $h1->mask(0x3ffffff); # $h1 &= 0x3ffffff; + + $h2 = $h2->addInt32($c); # $h2 += $c; + $c = $h2->shiftRight(26); # $c = $h2 >> 26; + $h2 = $h2->mask(0x3ffffff); # $h2 &= 0x3ffffff; + + $h3 = $h3->addInt32($c); # $h3 += $c; + $c = $h3->shiftRight(26); # $c = $h3 >> 26; + $h3 = $h3->mask(0x3ffffff); # $h3 &= 0x3ffffff; + + $h4 = $h4->addInt32($c); # $h4 += $c; + $c = $h4->shiftRight(26); # $c = $h4 >> 26; + $h4 = $h4->mask(0x3ffffff); # $h4 &= 0x3ffffff; + + $h0 = $h0->addInt32($c->mulInt(5, 3)); # $h0 += self::mul($c, 5); + $c = $h0->shiftRight(26); # $c = $h0 >> 26; + $h0 = $h0->mask(0x3ffffff); # $h0 &= 0x3ffffff; + $h1 = $h1->addInt32($c); # $h1 += $c; + + /* compute h + -p */ + $g0 = $h0->addInt(5); + $c = $g0->shiftRight(26); + $g0 = $g0->mask(0x3ffffff); + $g1 = $h1->addInt32($c); + $c = $g1->shiftRight(26); + $g1 = $g1->mask(0x3ffffff); + $g2 = $h2->addInt32($c); + $c = $g2->shiftRight(26); + $g2 = $g2->mask(0x3ffffff); + $g3 = $h3->addInt32($c); + $c = $g3->shiftRight(26); + $g3 = $g3->mask(0x3ffffff); + $g4 = $h4->addInt32($c)->subInt(1 << 26); + + # $mask = ($g4 >> 31) - 1; + /* select h if h < p, or h + -p if h >= p */ + $mask = (int) (($g4->toInt() >> 31) + 1); + + $g0 = $g0->mask($mask); + $g1 = $g1->mask($mask); + $g2 = $g2->mask($mask); + $g3 = $g3->mask($mask); + $g4 = $g4->mask($mask); + + /** @var int $mask */ + $mask = (~$mask) & 0xffffffff; + + $h0 = $h0->mask($mask)->orInt32($g0); + $h1 = $h1->mask($mask)->orInt32($g1); + $h2 = $h2->mask($mask)->orInt32($g2); + $h3 = $h3->mask($mask)->orInt32($g3); + $h4 = $h4->mask($mask)->orInt32($g4); + + /* h = h % (2^128) */ + $h0 = $h0->orInt32($h1->shiftLeft(26)); + $h1 = $h1->shiftRight(6)->orInt32($h2->shiftLeft(20)); + $h2 = $h2->shiftRight(12)->orInt32($h3->shiftLeft(14)); + $h3 = $h3->shiftRight(18)->orInt32($h4->shiftLeft(8)); + + /* mac = (h + pad) % (2^128) */ + $f = $h0->toInt64()->addInt64($this->pad[0]); + $h0 = $f->toInt32(); + $f = $h1->toInt64()->addInt64($this->pad[1])->addInt($h0->overflow); + $h1 = $f->toInt32(); + $f = $h2->toInt64()->addInt64($this->pad[2])->addInt($h1->overflow); + $h2 = $f->toInt32(); + $f = $h3->toInt64()->addInt64($this->pad[3])->addInt($h2->overflow); + $h3 = $f->toInt32(); + + return $h0->toReverseString() . + $h1->toReverseString() . + $h2->toReverseString() . + $h3->toReverseString(); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Salsa20.php b/vendor/paragonie/sodium_compat/src/Core32/Salsa20.php new file mode 100644 index 0000000..d8c8073 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Salsa20.php @@ -0,0 +1,306 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Salsa20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_Salsa20 + */ +abstract class ParagonIE_Sodium_Core32_Salsa20 extends ParagonIE_Sodium_Core32_Util +{ + const ROUNDS = 20; + + /** + * Calculate an salsa20 hash of a single block + * + * @internal You should not use this directly from another application + * + * @param string $in + * @param string $k + * @param string|null $c + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function core_salsa20($in, $k, $c = null) + { + /** + * @var ParagonIE_Sodium_Core32_Int32 $x0 + * @var ParagonIE_Sodium_Core32_Int32 $x1 + * @var ParagonIE_Sodium_Core32_Int32 $x2 + * @var ParagonIE_Sodium_Core32_Int32 $x3 + * @var ParagonIE_Sodium_Core32_Int32 $x4 + * @var ParagonIE_Sodium_Core32_Int32 $x5 + * @var ParagonIE_Sodium_Core32_Int32 $x6 + * @var ParagonIE_Sodium_Core32_Int32 $x7 + * @var ParagonIE_Sodium_Core32_Int32 $x8 + * @var ParagonIE_Sodium_Core32_Int32 $x9 + * @var ParagonIE_Sodium_Core32_Int32 $x10 + * @var ParagonIE_Sodium_Core32_Int32 $x11 + * @var ParagonIE_Sodium_Core32_Int32 $x12 + * @var ParagonIE_Sodium_Core32_Int32 $x13 + * @var ParagonIE_Sodium_Core32_Int32 $x14 + * @var ParagonIE_Sodium_Core32_Int32 $x15 + * @var ParagonIE_Sodium_Core32_Int32 $j0 + * @var ParagonIE_Sodium_Core32_Int32 $j1 + * @var ParagonIE_Sodium_Core32_Int32 $j2 + * @var ParagonIE_Sodium_Core32_Int32 $j3 + * @var ParagonIE_Sodium_Core32_Int32 $j4 + * @var ParagonIE_Sodium_Core32_Int32 $j5 + * @var ParagonIE_Sodium_Core32_Int32 $j6 + * @var ParagonIE_Sodium_Core32_Int32 $j7 + * @var ParagonIE_Sodium_Core32_Int32 $j8 + * @var ParagonIE_Sodium_Core32_Int32 $j9 + * @var ParagonIE_Sodium_Core32_Int32 $j10 + * @var ParagonIE_Sodium_Core32_Int32 $j11 + * @var ParagonIE_Sodium_Core32_Int32 $j12 + * @var ParagonIE_Sodium_Core32_Int32 $j13 + * @var ParagonIE_Sodium_Core32_Int32 $j14 + * @var ParagonIE_Sodium_Core32_Int32 $j15 + */ + if (self::strlen($k) < 32) { + throw new RangeException('Key must be 32 bytes long'); + } + if ($c === null) { + $x0 = new ParagonIE_Sodium_Core32_Int32(array(0x6170, 0x7865)); + $x5 = new ParagonIE_Sodium_Core32_Int32(array(0x3320, 0x646e)); + $x10 = new ParagonIE_Sodium_Core32_Int32(array(0x7962, 0x2d32)); + $x15 = new ParagonIE_Sodium_Core32_Int32(array(0x6b20, 0x6574)); + } else { + $x0 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 0, 4)); + $x5 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 4, 4)); + $x10 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 8, 4)); + $x15 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($c, 12, 4)); + } + $x1 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 0, 4)); + $x2 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 4, 4)); + $x3 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 8, 4)); + $x4 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 12, 4)); + $x6 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 0, 4)); + $x7 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 4, 4)); + $x8 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 8, 4)); + $x9 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($in, 12, 4)); + $x11 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 16, 4)); + $x12 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 20, 4)); + $x13 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 24, 4)); + $x14 = ParagonIE_Sodium_Core32_Int32::fromReverseString(self::substr($k, 28, 4)); + + $j0 = clone $x0; + $j1 = clone $x1; + $j2 = clone $x2; + $j3 = clone $x3; + $j4 = clone $x4; + $j5 = clone $x5; + $j6 = clone $x6; + $j7 = clone $x7; + $j8 = clone $x8; + $j9 = clone $x9; + $j10 = clone $x10; + $j11 = clone $x11; + $j12 = clone $x12; + $j13 = clone $x13; + $j14 = clone $x14; + $j15 = clone $x15; + + for ($i = self::ROUNDS; $i > 0; $i -= 2) { + $x4 = $x4->xorInt32($x0->addInt32($x12)->rotateLeft(7)); + $x8 = $x8->xorInt32($x4->addInt32($x0)->rotateLeft(9)); + $x12 = $x12->xorInt32($x8->addInt32($x4)->rotateLeft(13)); + $x0 = $x0->xorInt32($x12->addInt32($x8)->rotateLeft(18)); + + $x9 = $x9->xorInt32($x5->addInt32($x1)->rotateLeft(7)); + $x13 = $x13->xorInt32($x9->addInt32($x5)->rotateLeft(9)); + $x1 = $x1->xorInt32($x13->addInt32($x9)->rotateLeft(13)); + $x5 = $x5->xorInt32($x1->addInt32($x13)->rotateLeft(18)); + + $x14 = $x14->xorInt32($x10->addInt32($x6)->rotateLeft(7)); + $x2 = $x2->xorInt32($x14->addInt32($x10)->rotateLeft(9)); + $x6 = $x6->xorInt32($x2->addInt32($x14)->rotateLeft(13)); + $x10 = $x10->xorInt32($x6->addInt32($x2)->rotateLeft(18)); + + $x3 = $x3->xorInt32($x15->addInt32($x11)->rotateLeft(7)); + $x7 = $x7->xorInt32($x3->addInt32($x15)->rotateLeft(9)); + $x11 = $x11->xorInt32($x7->addInt32($x3)->rotateLeft(13)); + $x15 = $x15->xorInt32($x11->addInt32($x7)->rotateLeft(18)); + + $x1 = $x1->xorInt32($x0->addInt32($x3)->rotateLeft(7)); + $x2 = $x2->xorInt32($x1->addInt32($x0)->rotateLeft(9)); + $x3 = $x3->xorInt32($x2->addInt32($x1)->rotateLeft(13)); + $x0 = $x0->xorInt32($x3->addInt32($x2)->rotateLeft(18)); + + $x6 = $x6->xorInt32($x5->addInt32($x4)->rotateLeft(7)); + $x7 = $x7->xorInt32($x6->addInt32($x5)->rotateLeft(9)); + $x4 = $x4->xorInt32($x7->addInt32($x6)->rotateLeft(13)); + $x5 = $x5->xorInt32($x4->addInt32($x7)->rotateLeft(18)); + + $x11 = $x11->xorInt32($x10->addInt32($x9)->rotateLeft(7)); + $x8 = $x8->xorInt32($x11->addInt32($x10)->rotateLeft(9)); + $x9 = $x9->xorInt32($x8->addInt32($x11)->rotateLeft(13)); + $x10 = $x10->xorInt32($x9->addInt32($x8)->rotateLeft(18)); + + $x12 = $x12->xorInt32($x15->addInt32($x14)->rotateLeft(7)); + $x13 = $x13->xorInt32($x12->addInt32($x15)->rotateLeft(9)); + $x14 = $x14->xorInt32($x13->addInt32($x12)->rotateLeft(13)); + $x15 = $x15->xorInt32($x14->addInt32($x13)->rotateLeft(18)); + } + + $x0 = $x0->addInt32($j0); + $x1 = $x1->addInt32($j1); + $x2 = $x2->addInt32($j2); + $x3 = $x3->addInt32($j3); + $x4 = $x4->addInt32($j4); + $x5 = $x5->addInt32($j5); + $x6 = $x6->addInt32($j6); + $x7 = $x7->addInt32($j7); + $x8 = $x8->addInt32($j8); + $x9 = $x9->addInt32($j9); + $x10 = $x10->addInt32($j10); + $x11 = $x11->addInt32($j11); + $x12 = $x12->addInt32($j12); + $x13 = $x13->addInt32($j13); + $x14 = $x14->addInt32($j14); + $x15 = $x15->addInt32($j15); + + return $x0->toReverseString() . + $x1->toReverseString() . + $x2->toReverseString() . + $x3->toReverseString() . + $x4->toReverseString() . + $x5->toReverseString() . + $x6->toReverseString() . + $x7->toReverseString() . + $x8->toReverseString() . + $x9->toReverseString() . + $x10->toReverseString() . + $x11->toReverseString() . + $x12->toReverseString() . + $x13->toReverseString() . + $x14->toReverseString() . + $x15->toReverseString(); + } + + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function salsa20($len, $nonce, $key) + { + if (self::strlen($key) !== 32) { + throw new RangeException('Key must be 32 bytes long'); + } + $kcopy = '' . $key; + $in = self::substr($nonce, 0, 8) . str_repeat("\0", 8); + $c = ''; + while ($len >= 64) { + $c .= self::core_salsa20($in, $kcopy, null); + $u = 1; + // Internal counter. + for ($i = 8; $i < 16; ++$i) { + $u += self::chrToInt($in[$i]); + $in[$i] = self::intToChr($u & 0xff); + $u >>= 8; + } + $len -= 64; + } + if ($len > 0) { + $c .= self::substr( + self::core_salsa20($in, $kcopy, null), + 0, + $len + ); + } + try { + ParagonIE_Sodium_Compat::memzero($kcopy); + } catch (SodiumException $ex) { + $kcopy = null; + } + return $c; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $m + * @param string $n + * @param int $ic + * @param string $k + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function salsa20_xor_ic($m, $n, $ic, $k) + { + $mlen = self::strlen($m); + if ($mlen < 1) { + return ''; + } + $kcopy = self::substr($k, 0, 32); + $in = self::substr($n, 0, 8); + // Initialize the counter + $in .= ParagonIE_Sodium_Core32_Util::store64_le($ic); + + $c = ''; + while ($mlen >= 64) { + $block = self::core_salsa20($in, $kcopy, null); + $c .= self::xorStrings( + self::substr($m, 0, 64), + self::substr($block, 0, 64) + ); + $u = 1; + for ($i = 8; $i < 16; ++$i) { + $u += self::chrToInt($in[$i]); + $in[$i] = self::intToChr($u & 0xff); + $u >>= 8; + } + + $mlen -= 64; + $m = self::substr($m, 64); + } + + if ($mlen) { + $block = self::core_salsa20($in, $kcopy, null); + $c .= self::xorStrings( + self::substr($m, 0, $mlen), + self::substr($block, 0, $mlen) + ); + } + try { + ParagonIE_Sodium_Compat::memzero($block); + ParagonIE_Sodium_Compat::memzero($kcopy); + } catch (SodiumException $ex) { + $block = null; + $kcopy = null; + } + + return $c; + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function salsa20_xor($message, $nonce, $key) + { + return self::xorStrings( + $message, + self::salsa20( + self::strlen($message), + $nonce, + $key + ) + ); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/SecretStream/State.php b/vendor/paragonie/sodium_compat/src/Core32/SecretStream/State.php new file mode 100644 index 0000000..6f20486 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/SecretStream/State.php @@ -0,0 +1,163 @@ +<?php + +/** + * Class ParagonIE_Sodium_Core32_SecretStream_State + */ +class ParagonIE_Sodium_Core32_SecretStream_State +{ + /** @var string $key */ + protected $key; + + /** @var int $counter */ + protected $counter; + + /** @var string $nonce */ + protected $nonce; + + /** @var string $_pad */ + protected $_pad; + + /** + * ParagonIE_Sodium_Core32_SecretStream_State constructor. + * @param string $key + * @param string|null $nonce + */ + public function __construct($key, $nonce = null) + { + $this->key = $key; + $this->counter = 1; + if (is_null($nonce)) { + $nonce = str_repeat("\0", 12); + } + $this->nonce = str_pad($nonce, 12, "\0", STR_PAD_RIGHT);; + $this->_pad = str_repeat("\0", 4); + } + + /** + * @return self + */ + public function counterReset() + { + $this->counter = 1; + $this->_pad = str_repeat("\0", 4); + return $this; + } + + /** + * @return string + */ + public function getKey() + { + return $this->key; + } + + /** + * @return string + */ + public function getCounter() + { + return ParagonIE_Sodium_Core32_Util::store32_le($this->counter); + } + + /** + * @return string + */ + public function getNonce() + { + if (!is_string($this->nonce)) { + $this->nonce = str_repeat("\0", 12); + } + if (ParagonIE_Sodium_Core32_Util::strlen($this->nonce) !== 12) { + $this->nonce = str_pad($this->nonce, 12, "\0", STR_PAD_RIGHT); + } + return $this->nonce; + } + + /** + * @return string + */ + public function getCombinedNonce() + { + return $this->getCounter() . + ParagonIE_Sodium_Core32_Util::substr($this->getNonce(), 0, 8); + } + + /** + * @return self + */ + public function incrementCounter() + { + ++$this->counter; + return $this; + } + + /** + * @return bool + */ + public function needsRekey() + { + return ($this->counter & 0xffff) === 0; + } + + /** + * @param string $newKeyAndNonce + * @return self + */ + public function rekey($newKeyAndNonce) + { + $this->key = ParagonIE_Sodium_Core32_Util::substr($newKeyAndNonce, 0, 32); + $this->nonce = str_pad( + ParagonIE_Sodium_Core32_Util::substr($newKeyAndNonce, 32), + 12, + "\0", + STR_PAD_RIGHT + ); + return $this; + } + + /** + * @param string $str + * @return self + */ + public function xorNonce($str) + { + $this->nonce = ParagonIE_Sodium_Core32_Util::xorStrings( + $this->getNonce(), + str_pad( + ParagonIE_Sodium_Core32_Util::substr($str, 0, 8), + 12, + "\0", + STR_PAD_RIGHT + ) + ); + return $this; + } + + /** + * @param string $string + * @return self + */ + public static function fromString($string) + { + $state = new ParagonIE_Sodium_Core32_SecretStream_State( + ParagonIE_Sodium_Core32_Util::substr($string, 0, 32) + ); + $state->counter = ParagonIE_Sodium_Core32_Util::load_4( + ParagonIE_Sodium_Core32_Util::substr($string, 32, 4) + ); + $state->nonce = ParagonIE_Sodium_Core32_Util::substr($string, 36, 12); + $state->_pad = ParagonIE_Sodium_Core32_Util::substr($string, 48, 8); + return $state; + } + + /** + * @return string + */ + public function toString() + { + return $this->key . + $this->getCounter() . + $this->nonce . + $this->_pad; + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/SipHash.php b/vendor/paragonie/sodium_compat/src/Core32/SipHash.php new file mode 100644 index 0000000..079946d --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/SipHash.php @@ -0,0 +1,238 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_SipHash', false)) { + return; +} + +/** + * Class ParagonIE_SodiumCompat_Core32_SipHash + * + * Only uses 32-bit arithmetic, while the original SipHash used 64-bit integers + */ +class ParagonIE_Sodium_Core32_SipHash extends ParagonIE_Sodium_Core32_Util +{ + /** + * @internal You should not use this directly from another application + * + * @param array<int, ParagonIE_Sodium_Core32_Int64> $v + * @return array<int, ParagonIE_Sodium_Core32_Int64> + */ + public static function sipRound(array $v) + { + # v0 += v1; + $v[0] = $v[0]->addInt64($v[1]); + + # v1 = ROTL(v1, 13); + $v[1] = $v[1]->rotateLeft(13); + + # v1 ^= v0; + $v[1] = $v[1]->xorInt64($v[0]); + + # v0=ROTL(v0,32); + $v[0] = $v[0]->rotateLeft(32); + + # v2 += v3; + $v[2] = $v[2]->addInt64($v[3]); + + # v3=ROTL(v3,16); + $v[3] = $v[3]->rotateLeft(16); + + # v3 ^= v2; + $v[3] = $v[3]->xorInt64($v[2]); + + # v0 += v3; + $v[0] = $v[0]->addInt64($v[3]); + + # v3=ROTL(v3,21); + $v[3] = $v[3]->rotateLeft(21); + + # v3 ^= v0; + $v[3] = $v[3]->xorInt64($v[0]); + + # v2 += v1; + $v[2] = $v[2]->addInt64($v[1]); + + # v1=ROTL(v1,17); + $v[1] = $v[1]->rotateLeft(17); + + # v1 ^= v2; + $v[1] = $v[1]->xorInt64($v[2]); + + # v2=ROTL(v2,32) + $v[2] = $v[2]->rotateLeft(32); + + return $v; + } + + /** + * @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( + new ParagonIE_Sodium_Core32_Int64( + array(0x736f, 0x6d65, 0x7073, 0x6575) + ), + new ParagonIE_Sodium_Core32_Int64( + array(0x646f, 0x7261, 0x6e64, 0x6f6d) + ), + new ParagonIE_Sodium_Core32_Int64( + array(0x6c79, 0x6765, 0x6e65, 0x7261) + ), + new ParagonIE_Sodium_Core32_Int64( + array(0x7465, 0x6462, 0x7974, 0x6573) + ) + ); + + # u64 k0 = LOAD64_LE( k ); + # u64 k1 = LOAD64_LE( k + 8 ); + $k = array( + ParagonIE_Sodium_Core32_Int64::fromReverseString( + self::substr($key, 0, 8) + ), + ParagonIE_Sodium_Core32_Int64::fromReverseString( + self::substr($key, 8, 8) + ) + ); + + # b = ( ( u64 )inlen ) << 56; + $b = new ParagonIE_Sodium_Core32_Int64( + array(($inlen << 8) & 0xffff, 0, 0, 0) + ); + + # v3 ^= k1; + $v[3] = $v[3]->xorInt64($k[1]); + # v2 ^= k0; + $v[2] = $v[2]->xorInt64($k[0]); + # v1 ^= k1; + $v[1] = $v[1]->xorInt64($k[1]); + # v0 ^= k0; + $v[0] = $v[0]->xorInt64($k[0]); + + $left = $inlen; + # for ( ; in != end; in += 8 ) + while ($left >= 8) { + # m = LOAD64_LE( in ); + $m = ParagonIE_Sodium_Core32_Int64::fromReverseString( + self::substr($in, 0, 8) + ); + + # v3 ^= m; + $v[3] = $v[3]->xorInt64($m); + + # SIPROUND; + # SIPROUND; + $v = self::sipRound($v); + $v = self::sipRound($v); + + # v0 ^= m; + $v[0] = $v[0]->xorInt64($m); + + $in = self::substr($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 = $b->orInt64( + ParagonIE_Sodium_Core32_Int64::fromInts( + 0, self::chrToInt($in[6]) << 16 + ) + ); + case 6: + $b = $b->orInt64( + ParagonIE_Sodium_Core32_Int64::fromInts( + 0, self::chrToInt($in[5]) << 8 + ) + ); + case 5: + $b = $b->orInt64( + ParagonIE_Sodium_Core32_Int64::fromInts( + 0, self::chrToInt($in[4]) + ) + ); + case 4: + $b = $b->orInt64( + ParagonIE_Sodium_Core32_Int64::fromInts( + self::chrToInt($in[3]) << 24, 0 + ) + ); + case 3: + $b = $b->orInt64( + ParagonIE_Sodium_Core32_Int64::fromInts( + self::chrToInt($in[2]) << 16, 0 + ) + ); + case 2: + $b = $b->orInt64( + ParagonIE_Sodium_Core32_Int64::fromInts( + self::chrToInt($in[1]) << 8, 0 + ) + ); + case 1: + $b = $b->orInt64( + ParagonIE_Sodium_Core32_Int64::fromInts( + self::chrToInt($in[0]), 0 + ) + ); + case 0: + break; + } + + # v3 ^= b; + $v[3] = $v[3]->xorInt64($b); + + # SIPROUND; + # SIPROUND; + $v = self::sipRound($v); + $v = self::sipRound($v); + + # v0 ^= b; + $v[0] = $v[0]->xorInt64($b); + + // Flip the lower 8 bits of v2 which is ($v[4], $v[5]) in our implementation + # v2 ^= 0xff; + $v[2]->limbs[3] ^= 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 $v[0] + ->xorInt64($v[1]) + ->xorInt64($v[2]) + ->xorInt64($v[3]) + ->toReverseString(); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/Util.php b/vendor/paragonie/sodium_compat/src/Core32/Util.php new file mode 100644 index 0000000..f32e5ad --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/Util.php @@ -0,0 +1,13 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_Util', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core_Util + */ +abstract class ParagonIE_Sodium_Core32_Util extends ParagonIE_Sodium_Core_Util +{ + +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/X25519.php b/vendor/paragonie/sodium_compat/src/Core32/X25519.php new file mode 100644 index 0000000..2cc000d --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/X25519.php @@ -0,0 +1,345 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_X25519', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_X25519 + */ +abstract class ParagonIE_Sodium_Core32_X25519 extends ParagonIE_Sodium_Core32_Curve25519 +{ + /** + * Alters the objects passed to this method in place. + * + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $f + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $g + * @param int $b + * @return void + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedMethodCall + */ + public static function fe_cswap( + ParagonIE_Sodium_Core32_Curve25519_Fe $f, + ParagonIE_Sodium_Core32_Curve25519_Fe $g, + $b = 0 + ) { + $f0 = (int) $f[0]->toInt(); + $f1 = (int) $f[1]->toInt(); + $f2 = (int) $f[2]->toInt(); + $f3 = (int) $f[3]->toInt(); + $f4 = (int) $f[4]->toInt(); + $f5 = (int) $f[5]->toInt(); + $f6 = (int) $f[6]->toInt(); + $f7 = (int) $f[7]->toInt(); + $f8 = (int) $f[8]->toInt(); + $f9 = (int) $f[9]->toInt(); + $g0 = (int) $g[0]->toInt(); + $g1 = (int) $g[1]->toInt(); + $g2 = (int) $g[2]->toInt(); + $g3 = (int) $g[3]->toInt(); + $g4 = (int) $g[4]->toInt(); + $g5 = (int) $g[5]->toInt(); + $g6 = (int) $g[6]->toInt(); + $g7 = (int) $g[7]->toInt(); + $g8 = (int) $g[8]->toInt(); + $g9 = (int) $g[9]->toInt(); + $b = -$b; + /** @var int $x0 */ + $x0 = ($f0 ^ $g0) & $b; + /** @var int $x1 */ + $x1 = ($f1 ^ $g1) & $b; + /** @var int $x2 */ + $x2 = ($f2 ^ $g2) & $b; + /** @var int $x3 */ + $x3 = ($f3 ^ $g3) & $b; + /** @var int $x4 */ + $x4 = ($f4 ^ $g4) & $b; + /** @var int $x5 */ + $x5 = ($f5 ^ $g5) & $b; + /** @var int $x6 */ + $x6 = ($f6 ^ $g6) & $b; + /** @var int $x7 */ + $x7 = ($f7 ^ $g7) & $b; + /** @var int $x8 */ + $x8 = ($f8 ^ $g8) & $b; + /** @var int $x9 */ + $x9 = ($f9 ^ $g9) & $b; + $f[0] = ParagonIE_Sodium_Core32_Int32::fromInt($f0 ^ $x0); + $f[1] = ParagonIE_Sodium_Core32_Int32::fromInt($f1 ^ $x1); + $f[2] = ParagonIE_Sodium_Core32_Int32::fromInt($f2 ^ $x2); + $f[3] = ParagonIE_Sodium_Core32_Int32::fromInt($f3 ^ $x3); + $f[4] = ParagonIE_Sodium_Core32_Int32::fromInt($f4 ^ $x4); + $f[5] = ParagonIE_Sodium_Core32_Int32::fromInt($f5 ^ $x5); + $f[6] = ParagonIE_Sodium_Core32_Int32::fromInt($f6 ^ $x6); + $f[7] = ParagonIE_Sodium_Core32_Int32::fromInt($f7 ^ $x7); + $f[8] = ParagonIE_Sodium_Core32_Int32::fromInt($f8 ^ $x8); + $f[9] = ParagonIE_Sodium_Core32_Int32::fromInt($f9 ^ $x9); + $g[0] = ParagonIE_Sodium_Core32_Int32::fromInt($g0 ^ $x0); + $g[1] = ParagonIE_Sodium_Core32_Int32::fromInt($g1 ^ $x1); + $g[2] = ParagonIE_Sodium_Core32_Int32::fromInt($g2 ^ $x2); + $g[3] = ParagonIE_Sodium_Core32_Int32::fromInt($g3 ^ $x3); + $g[4] = ParagonIE_Sodium_Core32_Int32::fromInt($g4 ^ $x4); + $g[5] = ParagonIE_Sodium_Core32_Int32::fromInt($g5 ^ $x5); + $g[6] = ParagonIE_Sodium_Core32_Int32::fromInt($g6 ^ $x6); + $g[7] = ParagonIE_Sodium_Core32_Int32::fromInt($g7 ^ $x7); + $g[8] = ParagonIE_Sodium_Core32_Int32::fromInt($g8 ^ $x8); + $g[9] = ParagonIE_Sodium_Core32_Int32::fromInt($g9 ^ $x9); + } + + /** + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $f + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + * @psalm-suppress MixedAssignment + * @psalm-suppress MixedMethodCall + */ + public static function fe_mul121666(ParagonIE_Sodium_Core32_Curve25519_Fe $f) + { + /** @var array<int, ParagonIE_Sodium_Core32_Int64> $h */ + $h = array(); + for ($i = 0; $i < 10; ++$i) { + $h[$i] = $f[$i]->toInt64()->mulInt(121666, 17); + } + + $carry9 = $h[9]->addInt(1 << 24)->shiftRight(25); + $h[0] = $h[0]->addInt64($carry9->mulInt(19, 5)); + $h[9] = $h[9]->subInt64($carry9->shiftLeft(25)); + + $carry1 = $h[1]->addInt(1 << 24)->shiftRight(25); + $h[2] = $h[2]->addInt64($carry1); + $h[1] = $h[1]->subInt64($carry1->shiftLeft(25)); + + $carry3 = $h[3]->addInt(1 << 24)->shiftRight(25); + $h[4] = $h[4]->addInt64($carry3); + $h[3] = $h[3]->subInt64($carry3->shiftLeft(25)); + + $carry5 = $h[5]->addInt(1 << 24)->shiftRight(25); + $h[6] = $h[6]->addInt64($carry5); + $h[5] = $h[5]->subInt64($carry5->shiftLeft(25)); + + $carry7 = $h[7]->addInt(1 << 24)->shiftRight(25); + $h[8] = $h[8]->addInt64($carry7); + $h[7] = $h[7]->subInt64($carry7->shiftLeft(25)); + + $carry0 = $h[0]->addInt(1 << 25)->shiftRight(26); + $h[1] = $h[1]->addInt64($carry0); + $h[0] = $h[0]->subInt64($carry0->shiftLeft(26)); + + $carry2 = $h[2]->addInt(1 << 25)->shiftRight(26); + $h[3] = $h[3]->addInt64($carry2); + $h[2] = $h[2]->subInt64($carry2->shiftLeft(26)); + + $carry4 = $h[4]->addInt(1 << 25)->shiftRight(26); + $h[5] = $h[5]->addInt64($carry4); + $h[4] = $h[4]->subInt64($carry4->shiftLeft(26)); + + $carry6 = $h[6]->addInt(1 << 25)->shiftRight(26); + $h[7] = $h[7]->addInt64($carry6); + $h[6] = $h[6]->subInt64($carry6->shiftLeft(26)); + + $carry8 = $h[8]->addInt(1 << 25)->shiftRight(26); + $h[9] = $h[9]->addInt64($carry8); + $h[8] = $h[8]->subInt64($carry8->shiftLeft(26)); + + for ($i = 0; $i < 10; ++$i) { + $h[$i] = $h[$i]->toInt32(); + } + /** @var array<int, ParagonIE_Sodium_Core32_Int32> $h2 */ + $h2 = $h; + return ParagonIE_Sodium_Core32_Curve25519_Fe::fromArray($h2); + } + + /** + * @internal You should not use this directly from another application + * + * Inline comments preceded by # are from libsodium's ref10 code. + * + * @param string $n + * @param string $p + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function crypto_scalarmult_curve25519_ref10($n, $p) + { + # for (i = 0;i < 32;++i) e[i] = n[i]; + $e = '' . $n; + # e[0] &= 248; + $e[0] = self::intToChr( + self::chrToInt($e[0]) & 248 + ); + # e[31] &= 127; + # e[31] |= 64; + $e[31] = self::intToChr( + (self::chrToInt($e[31]) & 127) | 64 + ); + # fe_frombytes(x1,p); + $x1 = self::fe_frombytes($p); + # fe_1(x2); + $x2 = self::fe_1(); + # fe_0(z2); + $z2 = self::fe_0(); + # fe_copy(x3,x1); + $x3 = self::fe_copy($x1); + # fe_1(z3); + $z3 = self::fe_1(); + + # swap = 0; + /** @var int $swap */ + $swap = 0; + + # for (pos = 254;pos >= 0;--pos) { + for ($pos = 254; $pos >= 0; --$pos) { + # b = e[pos / 8] >> (pos & 7); + /** @var int $b */ + $b = self::chrToInt( + $e[(int) floor($pos / 8)] + ) >> ($pos & 7); + # b &= 1; + $b &= 1; + + # swap ^= b; + $swap ^= $b; + + # fe_cswap(x2,x3,swap); + self::fe_cswap($x2, $x3, $swap); + + # fe_cswap(z2,z3,swap); + self::fe_cswap($z2, $z3, $swap); + + # swap = b; + /** @var int $swap */ + $swap = $b; + + # fe_sub(tmp0,x3,z3); + $tmp0 = self::fe_sub($x3, $z3); + + # fe_sub(tmp1,x2,z2); + $tmp1 = self::fe_sub($x2, $z2); + + # fe_add(x2,x2,z2); + $x2 = self::fe_add($x2, $z2); + + # fe_add(z2,x3,z3); + $z2 = self::fe_add($x3, $z3); + + # fe_mul(z3,tmp0,x2); + $z3 = self::fe_mul($tmp0, $x2); + + # fe_mul(z2,z2,tmp1); + $z2 = self::fe_mul($z2, $tmp1); + + # fe_sq(tmp0,tmp1); + $tmp0 = self::fe_sq($tmp1); + + # fe_sq(tmp1,x2); + $tmp1 = self::fe_sq($x2); + + # fe_add(x3,z3,z2); + $x3 = self::fe_add($z3, $z2); + + # fe_sub(z2,z3,z2); + $z2 = self::fe_sub($z3, $z2); + + # fe_mul(x2,tmp1,tmp0); + $x2 = self::fe_mul($tmp1, $tmp0); + + # fe_sub(tmp1,tmp1,tmp0); + $tmp1 = self::fe_sub($tmp1, $tmp0); + + # fe_sq(z2,z2); + $z2 = self::fe_sq($z2); + + # fe_mul121666(z3,tmp1); + $z3 = self::fe_mul121666($tmp1); + + # fe_sq(x3,x3); + $x3 = self::fe_sq($x3); + + # fe_add(tmp0,tmp0,z3); + $tmp0 = self::fe_add($tmp0, $z3); + + # fe_mul(z3,x1,z2); + $z3 = self::fe_mul($x1, $z2); + + # fe_mul(z2,tmp1,tmp0); + $z2 = self::fe_mul($tmp1, $tmp0); + } + + # fe_cswap(x2,x3,swap); + self::fe_cswap($x2, $x3, $swap); + + # fe_cswap(z2,z3,swap); + self::fe_cswap($z2, $z3, $swap); + + # fe_invert(z2,z2); + $z2 = self::fe_invert($z2); + + # fe_mul(x2,x2,z2); + $x2 = self::fe_mul($x2, $z2); + # fe_tobytes(q,x2); + return (string) self::fe_tobytes($x2); + } + + /** + * @internal You should not use this directly from another application + * + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $edwardsY + * @param ParagonIE_Sodium_Core32_Curve25519_Fe $edwardsZ + * @return ParagonIE_Sodium_Core32_Curve25519_Fe + * @throws SodiumException + * @throws TypeError + */ + public static function edwards_to_montgomery( + ParagonIE_Sodium_Core32_Curve25519_Fe $edwardsY, + ParagonIE_Sodium_Core32_Curve25519_Fe $edwardsZ + ) { + $tempX = self::fe_add($edwardsZ, $edwardsY); + $tempZ = self::fe_sub($edwardsZ, $edwardsY); + $tempZ = self::fe_invert($tempZ); + return self::fe_mul($tempX, $tempZ); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $n + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function crypto_scalarmult_curve25519_ref10_base($n) + { + # for (i = 0;i < 32;++i) e[i] = n[i]; + $e = '' . $n; + + # e[0] &= 248; + $e[0] = self::intToChr( + self::chrToInt($e[0]) & 248 + ); + + # e[31] &= 127; + # e[31] |= 64; + $e[31] = self::intToChr( + (self::chrToInt($e[31]) & 127) | 64 + ); + + $A = self::ge_scalarmult_base($e); + if ( + !($A->Y instanceof ParagonIE_Sodium_Core32_Curve25519_Fe) + || + !($A->Z instanceof ParagonIE_Sodium_Core32_Curve25519_Fe) + ) { + throw new TypeError('Null points encountered'); + } + $pk = self::edwards_to_montgomery($A->Y, $A->Z); + return self::fe_tobytes($pk); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php b/vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php new file mode 100644 index 0000000..1dfc859 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/XChaCha20.php @@ -0,0 +1,64 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_XChaCha20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_XChaCha20 + */ +class ParagonIE_Sodium_Core32_XChaCha20 extends ParagonIE_Sodium_Core32_HChaCha20 +{ + /** + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function stream($len = 64, $nonce = '', $key = '') + { + if (self::strlen($nonce) !== 24) { + throw new SodiumException('Nonce must be 24 bytes long'); + } + return self::encryptBytes( + new ParagonIE_Sodium_Core32_ChaCha20_Ctx( + self::hChaCha20( + self::substr($nonce, 0, 16), + $key + ), + self::substr($nonce, 16, 8) + ), + str_repeat("\x00", $len) + ); + } + + /** + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @param string $ic + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function streamXorIc($message, $nonce = '', $key = '', $ic = '') + { + if (self::strlen($nonce) !== 24) { + throw new SodiumException('Nonce must be 24 bytes long'); + } + return self::encryptBytes( + new ParagonIE_Sodium_Core32_ChaCha20_Ctx( + self::hChaCha20(self::substr($nonce, 0, 16), $key), + self::substr($nonce, 16, 8), + $ic + ), + $message + ); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Core32/XSalsa20.php b/vendor/paragonie/sodium_compat/src/Core32/XSalsa20.php new file mode 100644 index 0000000..a16b93b --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Core32/XSalsa20.php @@ -0,0 +1,57 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Core32_XSalsa20', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Core32_XSalsa20 + */ +abstract class ParagonIE_Sodium_Core32_XSalsa20 extends ParagonIE_Sodium_Core32_HSalsa20 +{ + /** + * Expand a key and nonce into an xsalsa20 keystream. + * + * @internal You should not use this directly from another application + * + * @param int $len + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function xsalsa20($len, $nonce, $key) + { + $ret = self::salsa20( + $len, + self::substr($nonce, 16, 8), + self::hsalsa20($nonce, $key) + ); + return $ret; + } + + /** + * Encrypt a string with XSalsa20. Doesn't provide integrity. + * + * @internal You should not use this directly from another application + * + * @param string $message + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function xsalsa20_xor($message, $nonce, $key) + { + return self::xorStrings( + $message, + self::xsalsa20( + self::strlen($message), + $nonce, + $key + ) + ); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Crypto.php b/vendor/paragonie/sodium_compat/src/Crypto.php new file mode 100644 index 0000000..7e980f4 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Crypto.php @@ -0,0 +1,1655 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Crypto', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Crypto + * + * ATTENTION! + * + * If you are using this library, you should be using + * ParagonIE_Sodium_Compat in your code, not this class. + */ +abstract class ParagonIE_Sodium_Crypto +{ + const aead_chacha20poly1305_KEYBYTES = 32; + const aead_chacha20poly1305_NSECBYTES = 0; + const aead_chacha20poly1305_NPUBBYTES = 8; + const aead_chacha20poly1305_ABYTES = 16; + + const aead_chacha20poly1305_IETF_KEYBYTES = 32; + const aead_chacha20poly1305_IETF_NSECBYTES = 0; + const aead_chacha20poly1305_IETF_NPUBBYTES = 12; + const aead_chacha20poly1305_IETF_ABYTES = 16; + + const aead_xchacha20poly1305_IETF_KEYBYTES = 32; + const aead_xchacha20poly1305_IETF_NSECBYTES = 0; + const aead_xchacha20poly1305_IETF_NPUBBYTES = 24; + const aead_xchacha20poly1305_IETF_ABYTES = 16; + + const box_curve25519xsalsa20poly1305_SEEDBYTES = 32; + const box_curve25519xsalsa20poly1305_PUBLICKEYBYTES = 32; + const box_curve25519xsalsa20poly1305_SECRETKEYBYTES = 32; + const box_curve25519xsalsa20poly1305_BEFORENMBYTES = 32; + const box_curve25519xsalsa20poly1305_NONCEBYTES = 24; + const box_curve25519xsalsa20poly1305_MACBYTES = 16; + const box_curve25519xsalsa20poly1305_BOXZEROBYTES = 16; + const box_curve25519xsalsa20poly1305_ZEROBYTES = 32; + + const onetimeauth_poly1305_BYTES = 16; + const onetimeauth_poly1305_KEYBYTES = 32; + + const secretbox_xsalsa20poly1305_KEYBYTES = 32; + const secretbox_xsalsa20poly1305_NONCEBYTES = 24; + const secretbox_xsalsa20poly1305_MACBYTES = 16; + const secretbox_xsalsa20poly1305_BOXZEROBYTES = 16; + const secretbox_xsalsa20poly1305_ZEROBYTES = 32; + + const secretbox_xchacha20poly1305_KEYBYTES = 32; + const secretbox_xchacha20poly1305_NONCEBYTES = 24; + const secretbox_xchacha20poly1305_MACBYTES = 16; + const secretbox_xchacha20poly1305_BOXZEROBYTES = 16; + const secretbox_xchacha20poly1305_ZEROBYTES = 32; + + const stream_salsa20_KEYBYTES = 32; + + /** + * AEAD Decryption with ChaCha20-Poly1305 + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_decrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $len - Length of message (ciphertext + MAC) */ + $len = ParagonIE_Sodium_Core_Util::strlen($message); + + /** @var int $clen - Length of ciphertext */ + $clen = $len - self::aead_chacha20poly1305_ABYTES; + + /** @var int $adlen - Length of associated data */ + $adlen = ParagonIE_Sodium_Core_Util::strlen($ad); + + /** @var string $mac - Message authentication code */ + $mac = ParagonIE_Sodium_Core_Util::substr( + $message, + $clen, + self::aead_chacha20poly1305_ABYTES + ); + + /** @var string $ciphertext - The encrypted message (sans MAC) */ + $ciphertext = ParagonIE_Sodium_Core_Util::substr($message, 0, $clen); + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core_ChaCha20::stream( + 32, + $nonce, + $key + ); + + /* Recalculate the Poly1305 authentication tag (MAC): */ + $state = new ParagonIE_Sodium_Core_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + $state->update($ad); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($adlen)); + $state->update($ciphertext); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($clen)); + $computed_mac = $state->finish(); + + /* Compare the given MAC with the recalculated MAC: */ + if (!ParagonIE_Sodium_Core_Util::verify_16($computed_mac, $mac)) { + throw new SodiumException('Invalid MAC'); + } + + // Here, we know that the MAC is valid, so we decrypt and return the plaintext + return ParagonIE_Sodium_Core_ChaCha20::streamXorIc( + $ciphertext, + $nonce, + $key, + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + } + + /** + * AEAD Encryption with ChaCha20-Poly1305 + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_encrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $len - Length of the plaintext message */ + $len = ParagonIE_Sodium_Core_Util::strlen($message); + + /** @var int $adlen - Length of the associated data */ + $adlen = ParagonIE_Sodium_Core_Util::strlen($ad); + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core_ChaCha20::stream( + 32, + $nonce, + $key + ); + $state = new ParagonIE_Sodium_Core_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + + /** @var string $ciphertext - Raw encrypted data */ + $ciphertext = ParagonIE_Sodium_Core_ChaCha20::streamXorIc( + $message, + $nonce, + $key, + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + + $state->update($ad); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($adlen)); + $state->update($ciphertext); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($len)); + return $ciphertext . $state->finish(); + } + + /** + * AEAD Decryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_ietf_decrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $adlen - Length of associated data */ + $adlen = ParagonIE_Sodium_Core_Util::strlen($ad); + + /** @var int $len - Length of message (ciphertext + MAC) */ + $len = ParagonIE_Sodium_Core_Util::strlen($message); + + /** @var int $clen - Length of ciphertext */ + $clen = $len - self::aead_chacha20poly1305_IETF_ABYTES; + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core_ChaCha20::ietfStream( + 32, + $nonce, + $key + ); + + /** @var string $mac - Message authentication code */ + $mac = ParagonIE_Sodium_Core_Util::substr( + $message, + $len - self::aead_chacha20poly1305_IETF_ABYTES, + self::aead_chacha20poly1305_IETF_ABYTES + ); + + /** @var string $ciphertext - The encrypted message (sans MAC) */ + $ciphertext = ParagonIE_Sodium_Core_Util::substr( + $message, + 0, + $len - self::aead_chacha20poly1305_IETF_ABYTES + ); + + /* Recalculate the Poly1305 authentication tag (MAC): */ + $state = new ParagonIE_Sodium_Core_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + $state->update($ad); + $state->update(str_repeat("\x00", ((0x10 - $adlen) & 0xf))); + $state->update($ciphertext); + $state->update(str_repeat("\x00", (0x10 - $clen) & 0xf)); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($adlen)); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($clen)); + $computed_mac = $state->finish(); + + /* Compare the given MAC with the recalculated MAC: */ + if (!ParagonIE_Sodium_Core_Util::verify_16($computed_mac, $mac)) { + throw new SodiumException('Invalid MAC'); + } + + // Here, we know that the MAC is valid, so we decrypt and return the plaintext + return ParagonIE_Sodium_Core_ChaCha20::ietfStreamXorIc( + $ciphertext, + $nonce, + $key, + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + } + + /** + * AEAD Encryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_ietf_encrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $len - Length of the plaintext message */ + $len = ParagonIE_Sodium_Core_Util::strlen($message); + + /** @var int $adlen - Length of the associated data */ + $adlen = ParagonIE_Sodium_Core_Util::strlen($ad); + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core_ChaCha20::ietfStream( + 32, + $nonce, + $key + ); + $state = new ParagonIE_Sodium_Core_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + + /** @var string $ciphertext - Raw encrypted data */ + $ciphertext = ParagonIE_Sodium_Core_ChaCha20::ietfStreamXorIc( + $message, + $nonce, + $key, + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + + $state->update($ad); + $state->update(str_repeat("\x00", ((0x10 - $adlen) & 0xf))); + $state->update($ciphertext); + $state->update(str_repeat("\x00", ((0x10 - $len) & 0xf))); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($adlen)); + $state->update(ParagonIE_Sodium_Core_Util::store64_le($len)); + return $ciphertext . $state->finish(); + } + + /** + * AEAD Decryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_xchacha20poly1305_ietf_decrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + $subkey = ParagonIE_Sodium_Core_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core_Util::substr($nonce, 0, 16), + $key + ); + $nonceLast = "\x00\x00\x00\x00" . + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8); + + return self::aead_chacha20poly1305_ietf_decrypt($message, $ad, $nonceLast, $subkey); + } + + /** + * AEAD Encryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_xchacha20poly1305_ietf_encrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + $subkey = ParagonIE_Sodium_Core_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core_Util::substr($nonce, 0, 16), + $key + ); + $nonceLast = "\x00\x00\x00\x00" . + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8); + + return self::aead_chacha20poly1305_ietf_encrypt($message, $ad, $nonceLast, $subkey); + } + + /** + * HMAC-SHA-512-256 (a.k.a. the leftmost 256 bits of HMAC-SHA-512) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $key + * @return string + * @throws TypeError + */ + public static function auth($message, $key) + { + return ParagonIE_Sodium_Core_Util::substr( + hash_hmac('sha512', $message, $key, true), + 0, + 32 + ); + } + + /** + * HMAC-SHA-512-256 validation. Constant-time via hash_equals(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $mac + * @param string $message + * @param string $key + * @return bool + * @throws SodiumException + * @throws TypeError + */ + public static function auth_verify($mac, $message, $key) + { + return ParagonIE_Sodium_Core_Util::hashEquals( + $mac, + self::auth($message, $key) + ); + } + + /** + * X25519 key exchange followed by XSalsa20Poly1305 symmetric encryption + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $plaintext + * @param string $nonce + * @param string $keypair + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box($plaintext, $nonce, $keypair) + { + $c = self::secretbox( + $plaintext, + $nonce, + self::box_beforenm( + self::box_secretkey($keypair), + self::box_publickey($keypair) + ) + ); + return $c; + } + + /** + * X25519-XSalsa20-Poly1305 with one ephemeral X25519 keypair. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $publicKey + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_seal($message, $publicKey) + { + /** @var string $ephemeralKeypair */ + $ephemeralKeypair = self::box_keypair(); + + /** @var string $ephemeralSK */ + $ephemeralSK = self::box_secretkey($ephemeralKeypair); + + /** @var string $ephemeralPK */ + $ephemeralPK = self::box_publickey($ephemeralKeypair); + + /** @var string $nonce */ + $nonce = self::generichash( + $ephemeralPK . $publicKey, + '', + 24 + ); + + /** @var string $keypair - The combined keypair used in crypto_box() */ + $keypair = self::box_keypair_from_secretkey_and_publickey($ephemeralSK, $publicKey); + + /** @var string $ciphertext Ciphertext + MAC from crypto_box */ + $ciphertext = self::box($message, $nonce, $keypair); + try { + ParagonIE_Sodium_Compat::memzero($ephemeralKeypair); + ParagonIE_Sodium_Compat::memzero($ephemeralSK); + ParagonIE_Sodium_Compat::memzero($nonce); + } catch (SodiumException $ex) { + $ephemeralKeypair = null; + $ephemeralSK = null; + $nonce = null; + } + return $ephemeralPK . $ciphertext; + } + + /** + * Opens a message encrypted via box_seal(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $keypair + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_seal_open($message, $keypair) + { + /** @var string $ephemeralPK */ + $ephemeralPK = ParagonIE_Sodium_Core_Util::substr($message, 0, 32); + + /** @var string $ciphertext (ciphertext + MAC) */ + $ciphertext = ParagonIE_Sodium_Core_Util::substr($message, 32); + + /** @var string $secretKey */ + $secretKey = self::box_secretkey($keypair); + + /** @var string $publicKey */ + $publicKey = self::box_publickey($keypair); + + /** @var string $nonce */ + $nonce = self::generichash( + $ephemeralPK . $publicKey, + '', + 24 + ); + + /** @var string $keypair */ + $keypair = self::box_keypair_from_secretkey_and_publickey($secretKey, $ephemeralPK); + + /** @var string $m */ + $m = self::box_open($ciphertext, $nonce, $keypair); + try { + ParagonIE_Sodium_Compat::memzero($secretKey); + ParagonIE_Sodium_Compat::memzero($ephemeralPK); + ParagonIE_Sodium_Compat::memzero($nonce); + } catch (SodiumException $ex) { + $secretKey = null; + $ephemeralPK = null; + $nonce = null; + } + return $m; + } + + /** + * Used by crypto_box() to get the crypto_secretbox() key. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sk + * @param string $pk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_beforenm($sk, $pk) + { + return ParagonIE_Sodium_Core_HSalsa20::hsalsa20( + str_repeat("\x00", 16), + self::scalarmult($sk, $pk) + ); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @return string + * @throws Exception + * @throws SodiumException + * @throws TypeError + */ + public static function box_keypair() + { + $sKey = random_bytes(32); + $pKey = self::scalarmult_base($sKey); + return $sKey . $pKey; + } + + /** + * @param string $seed + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_seed_keypair($seed) + { + $sKey = ParagonIE_Sodium_Core_Util::substr( + hash('sha512', $seed, true), + 0, + 32 + ); + $pKey = self::scalarmult_base($sKey); + return $sKey . $pKey; + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sKey + * @param string $pKey + * @return string + * @throws TypeError + */ + public static function box_keypair_from_secretkey_and_publickey($sKey, $pKey) + { + return ParagonIE_Sodium_Core_Util::substr($sKey, 0, 32) . + ParagonIE_Sodium_Core_Util::substr($pKey, 0, 32); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $keypair + * @return string + * @throws RangeException + * @throws TypeError + */ + public static function box_secretkey($keypair) + { + if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== 64) { + throw new RangeException( + 'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES bytes long.' + ); + } + return ParagonIE_Sodium_Core_Util::substr($keypair, 0, 32); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $keypair + * @return string + * @throws RangeException + * @throws TypeError + */ + public static function box_publickey($keypair) + { + if (ParagonIE_Sodium_Core_Util::strlen($keypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) { + throw new RangeException( + 'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES bytes long.' + ); + } + return ParagonIE_Sodium_Core_Util::substr($keypair, 32, 32); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sKey + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function box_publickey_from_secretkey($sKey) + { + if (ParagonIE_Sodium_Core_Util::strlen($sKey) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_SECRETKEYBYTES) { + throw new RangeException( + 'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_SECRETKEYBYTES bytes long.' + ); + } + return self::scalarmult_base($sKey); + } + + /** + * Decrypt a message encrypted with box(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ciphertext + * @param string $nonce + * @param string $keypair + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_open($ciphertext, $nonce, $keypair) + { + return self::secretbox_open( + $ciphertext, + $nonce, + self::box_beforenm( + self::box_secretkey($keypair), + self::box_publickey($keypair) + ) + ); + } + + /** + * Calculate a BLAKE2b hash. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string|null $key + * @param int $outlen + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function generichash($message, $key = '', $outlen = 32) + { + // This ensures that ParagonIE_Sodium_Core_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core_BLAKE2b::pseudoConstructor(); + + $k = null; + if (!empty($key)) { + /** @var SplFixedArray $k */ + $k = ParagonIE_Sodium_Core_BLAKE2b::stringToSplFixedArray($key); + if ($k->count() > ParagonIE_Sodium_Core_BLAKE2b::KEYBYTES) { + throw new RangeException('Invalid key size'); + } + } + + /** @var SplFixedArray $in */ + $in = ParagonIE_Sodium_Core_BLAKE2b::stringToSplFixedArray($message); + + /** @var SplFixedArray $ctx */ + $ctx = ParagonIE_Sodium_Core_BLAKE2b::init($k, $outlen); + ParagonIE_Sodium_Core_BLAKE2b::update($ctx, $in, $in->count()); + + /** @var SplFixedArray $out */ + $out = new SplFixedArray($outlen); + $out = ParagonIE_Sodium_Core_BLAKE2b::finish($ctx, $out); + + /** @var array<int, int> */ + $outArray = $out->toArray(); + return ParagonIE_Sodium_Core_Util::intArrayToString($outArray); + } + + /** + * Finalize a BLAKE2b hashing context, returning the hash. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ctx + * @param int $outlen + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_final($ctx, $outlen = 32) + { + if (!is_string($ctx)) { + throw new TypeError('Context must be a string'); + } + $out = new SplFixedArray($outlen); + + /** @var SplFixedArray $context */ + $context = ParagonIE_Sodium_Core_BLAKE2b::stringToContext($ctx); + + /** @var SplFixedArray $out */ + $out = ParagonIE_Sodium_Core_BLAKE2b::finish($context, $out); + + /** @var array<int, int> */ + $outArray = $out->toArray(); + return ParagonIE_Sodium_Core_Util::intArrayToString($outArray); + } + + /** + * Initialize a hashing context for BLAKE2b. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $key + * @param int $outputLength + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_init($key = '', $outputLength = 32) + { + // This ensures that ParagonIE_Sodium_Core_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core_BLAKE2b::pseudoConstructor(); + + $k = null; + if (!empty($key)) { + $k = ParagonIE_Sodium_Core_BLAKE2b::stringToSplFixedArray($key); + if ($k->count() > ParagonIE_Sodium_Core_BLAKE2b::KEYBYTES) { + throw new RangeException('Invalid key size'); + } + } + + /** @var SplFixedArray $ctx */ + $ctx = ParagonIE_Sodium_Core_BLAKE2b::init($k, $outputLength); + + return ParagonIE_Sodium_Core_BLAKE2b::contextToString($ctx); + } + + /** + * Initialize a hashing context for BLAKE2b. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $key + * @param int $outputLength + * @param string $salt + * @param string $personal + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_init_salt_personal( + $key = '', + $outputLength = 32, + $salt = '', + $personal = '' + ) { + // This ensures that ParagonIE_Sodium_Core_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core_BLAKE2b::pseudoConstructor(); + + $k = null; + if (!empty($key)) { + $k = ParagonIE_Sodium_Core_BLAKE2b::stringToSplFixedArray($key); + if ($k->count() > ParagonIE_Sodium_Core_BLAKE2b::KEYBYTES) { + throw new RangeException('Invalid key size'); + } + } + if (!empty($salt)) { + $s = ParagonIE_Sodium_Core_BLAKE2b::stringToSplFixedArray($salt); + } else { + $s = null; + } + if (!empty($salt)) { + $p = ParagonIE_Sodium_Core_BLAKE2b::stringToSplFixedArray($personal); + } else { + $p = null; + } + + /** @var SplFixedArray $ctx */ + $ctx = ParagonIE_Sodium_Core_BLAKE2b::init($k, $outputLength, $s, $p); + + return ParagonIE_Sodium_Core_BLAKE2b::contextToString($ctx); + } + + /** + * Update a hashing context for BLAKE2b with $message + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ctx + * @param string $message + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_update($ctx, $message) + { + // This ensures that ParagonIE_Sodium_Core_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core_BLAKE2b::pseudoConstructor(); + + /** @var SplFixedArray $context */ + $context = ParagonIE_Sodium_Core_BLAKE2b::stringToContext($ctx); + + /** @var SplFixedArray $in */ + $in = ParagonIE_Sodium_Core_BLAKE2b::stringToSplFixedArray($message); + + ParagonIE_Sodium_Core_BLAKE2b::update($context, $in, $in->count()); + + return ParagonIE_Sodium_Core_BLAKE2b::contextToString($context); + } + + /** + * Libsodium's crypto_kx(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $my_sk + * @param string $their_pk + * @param string $client_pk + * @param string $server_pk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function keyExchange($my_sk, $their_pk, $client_pk, $server_pk) + { + return ParagonIE_Sodium_Compat::crypto_generichash( + ParagonIE_Sodium_Compat::crypto_scalarmult($my_sk, $their_pk) . + $client_pk . + $server_pk + ); + } + + /** + * ECDH over Curve25519 + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sKey + * @param string $pKey + * @return string + * + * @throws SodiumException + * @throws TypeError + */ + public static function scalarmult($sKey, $pKey) + { + $q = ParagonIE_Sodium_Core_X25519::crypto_scalarmult_curve25519_ref10($sKey, $pKey); + self::scalarmult_throw_if_zero($q); + return $q; + } + + /** + * ECDH over Curve25519, using the basepoint. + * Used to get a secret key from a public key. + * + * @param string $secret + * @return string + * + * @throws SodiumException + * @throws TypeError + */ + public static function scalarmult_base($secret) + { + $q = ParagonIE_Sodium_Core_X25519::crypto_scalarmult_curve25519_ref10_base($secret); + self::scalarmult_throw_if_zero($q); + return $q; + } + + /** + * This throws an Error if a zero public key was passed to the function. + * + * @param string $q + * @return void + * @throws SodiumException + * @throws TypeError + */ + protected static function scalarmult_throw_if_zero($q) + { + $d = 0; + for ($i = 0; $i < self::box_curve25519xsalsa20poly1305_SECRETKEYBYTES; ++$i) { + $d |= ParagonIE_Sodium_Core_Util::chrToInt($q[$i]); + } + + /* branch-free variant of === 0 */ + if (-(1 & (($d - 1) >> 8))) { + throw new SodiumException('Zero public key is not allowed'); + } + } + + /** + * XSalsa20-Poly1305 authenticated symmetric-key encryption. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $plaintext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox($plaintext, $nonce, $key) + { + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core_HSalsa20::hsalsa20($nonce, $key); + + /** @var string $block0 */ + $block0 = str_repeat("\x00", 32); + + /** @var int $mlen - Length of the plaintext message */ + $mlen = ParagonIE_Sodium_Core_Util::strlen($plaintext); + $mlen0 = $mlen; + if ($mlen0 > 64 - self::secretbox_xsalsa20poly1305_ZEROBYTES) { + $mlen0 = 64 - self::secretbox_xsalsa20poly1305_ZEROBYTES; + } + $block0 .= ParagonIE_Sodium_Core_Util::substr($plaintext, 0, $mlen0); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core_Salsa20::salsa20_xor( + $block0, + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8), + $subkey + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core_Util::substr( + $block0, + self::secretbox_xsalsa20poly1305_ZEROBYTES + ); + if ($mlen > $mlen0) { + $c .= ParagonIE_Sodium_Core_Salsa20::salsa20_xor_ic( + ParagonIE_Sodium_Core_Util::substr( + $plaintext, + self::secretbox_xsalsa20poly1305_ZEROBYTES + ), + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8), + 1, + $subkey + ); + } + $state = new ParagonIE_Sodium_Core_Poly1305_State( + ParagonIE_Sodium_Core_Util::substr( + $block0, + 0, + self::onetimeauth_poly1305_KEYBYTES + ) + ); + try { + ParagonIE_Sodium_Compat::memzero($block0); + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $block0 = null; + $subkey = null; + } + + $state->update($c); + + /** @var string $c - MAC || ciphertext */ + $c = $state->finish() . $c; + unset($state); + + return $c; + } + + /** + * Decrypt a ciphertext generated via secretbox(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ciphertext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox_open($ciphertext, $nonce, $key) + { + /** @var string $mac */ + $mac = ParagonIE_Sodium_Core_Util::substr( + $ciphertext, + 0, + self::secretbox_xsalsa20poly1305_MACBYTES + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core_Util::substr( + $ciphertext, + self::secretbox_xsalsa20poly1305_MACBYTES + ); + + /** @var int $clen */ + $clen = ParagonIE_Sodium_Core_Util::strlen($c); + + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core_HSalsa20::hsalsa20($nonce, $key); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core_Salsa20::salsa20( + 64, + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8), + $subkey + ); + $verified = ParagonIE_Sodium_Core_Poly1305::onetimeauth_verify( + $mac, + $c, + ParagonIE_Sodium_Core_Util::substr($block0, 0, 32) + ); + if (!$verified) { + try { + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $subkey = null; + } + throw new SodiumException('Invalid MAC'); + } + + /** @var string $m - Decrypted message */ + $m = ParagonIE_Sodium_Core_Util::xorStrings( + ParagonIE_Sodium_Core_Util::substr($block0, self::secretbox_xsalsa20poly1305_ZEROBYTES), + ParagonIE_Sodium_Core_Util::substr($c, 0, self::secretbox_xsalsa20poly1305_ZEROBYTES) + ); + if ($clen > self::secretbox_xsalsa20poly1305_ZEROBYTES) { + // We had more than 1 block, so let's continue to decrypt the rest. + $m .= ParagonIE_Sodium_Core_Salsa20::salsa20_xor_ic( + ParagonIE_Sodium_Core_Util::substr( + $c, + self::secretbox_xsalsa20poly1305_ZEROBYTES + ), + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8), + 1, + (string) $subkey + ); + } + return $m; + } + + /** + * XChaCha20-Poly1305 authenticated symmetric-key encryption. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $plaintext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox_xchacha20poly1305($plaintext, $nonce, $key) + { + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core_Util::substr($nonce, 0, 16), + $key + ); + $nonceLast = ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8); + + /** @var string $block0 */ + $block0 = str_repeat("\x00", 32); + + /** @var int $mlen - Length of the plaintext message */ + $mlen = ParagonIE_Sodium_Core_Util::strlen($plaintext); + $mlen0 = $mlen; + if ($mlen0 > 64 - self::secretbox_xchacha20poly1305_ZEROBYTES) { + $mlen0 = 64 - self::secretbox_xchacha20poly1305_ZEROBYTES; + } + $block0 .= ParagonIE_Sodium_Core_Util::substr($plaintext, 0, $mlen0); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core_ChaCha20::streamXorIc( + $block0, + $nonceLast, + $subkey + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core_Util::substr( + $block0, + self::secretbox_xchacha20poly1305_ZEROBYTES + ); + if ($mlen > $mlen0) { + $c .= ParagonIE_Sodium_Core_ChaCha20::streamXorIc( + ParagonIE_Sodium_Core_Util::substr( + $plaintext, + self::secretbox_xchacha20poly1305_ZEROBYTES + ), + $nonceLast, + $subkey, + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + } + $state = new ParagonIE_Sodium_Core_Poly1305_State( + ParagonIE_Sodium_Core_Util::substr( + $block0, + 0, + self::onetimeauth_poly1305_KEYBYTES + ) + ); + try { + ParagonIE_Sodium_Compat::memzero($block0); + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $block0 = null; + $subkey = null; + } + + $state->update($c); + + /** @var string $c - MAC || ciphertext */ + $c = $state->finish() . $c; + unset($state); + + return $c; + } + + /** + * Decrypt a ciphertext generated via secretbox_xchacha20poly1305(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ciphertext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key) + { + /** @var string $mac */ + $mac = ParagonIE_Sodium_Core_Util::substr( + $ciphertext, + 0, + self::secretbox_xchacha20poly1305_MACBYTES + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core_Util::substr( + $ciphertext, + self::secretbox_xchacha20poly1305_MACBYTES + ); + + /** @var int $clen */ + $clen = ParagonIE_Sodium_Core_Util::strlen($c); + + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core_HChaCha20::hchacha20($nonce, $key); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core_ChaCha20::stream( + 64, + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8), + $subkey + ); + $verified = ParagonIE_Sodium_Core_Poly1305::onetimeauth_verify( + $mac, + $c, + ParagonIE_Sodium_Core_Util::substr($block0, 0, 32) + ); + + if (!$verified) { + try { + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $subkey = null; + } + throw new SodiumException('Invalid MAC'); + } + + /** @var string $m - Decrypted message */ + $m = ParagonIE_Sodium_Core_Util::xorStrings( + ParagonIE_Sodium_Core_Util::substr($block0, self::secretbox_xchacha20poly1305_ZEROBYTES), + ParagonIE_Sodium_Core_Util::substr($c, 0, self::secretbox_xchacha20poly1305_ZEROBYTES) + ); + + if ($clen > self::secretbox_xchacha20poly1305_ZEROBYTES) { + // We had more than 1 block, so let's continue to decrypt the rest. + $m .= ParagonIE_Sodium_Core_ChaCha20::streamXorIc( + ParagonIE_Sodium_Core_Util::substr( + $c, + self::secretbox_xchacha20poly1305_ZEROBYTES + ), + ParagonIE_Sodium_Core_Util::substr($nonce, 16, 8), + (string) $subkey, + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + } + return $m; + } + + /** + * @param string $key + * @return array<int, string> Returns a state and a header. + * @throws Exception + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_init_push($key) + { + # randombytes_buf(out, crypto_secretstream_xchacha20poly1305_HEADERBYTES); + $out = random_bytes(24); + + # crypto_core_hchacha20(state->k, out, k, NULL); + $subkey = ParagonIE_Sodium_Core_HChaCha20::hChaCha20($out, $key); + $state = new ParagonIE_Sodium_Core_SecretStream_State( + $subkey, + ParagonIE_Sodium_Core_Util::substr($out, 16, 8) . str_repeat("\0", 4) + ); + + # _crypto_secretstream_xchacha20poly1305_counter_reset(state); + $state->counterReset(); + + # memcpy(STATE_INONCE(state), out + crypto_core_hchacha20_INPUTBYTES, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + # memset(state->_pad, 0, sizeof state->_pad); + return array( + $state->toString(), + $out + ); + } + + /** + * @param string $key + * @param string $header + * @return string Returns a state. + * @throws Exception + */ + public static function secretstream_xchacha20poly1305_init_pull($key, $header) + { + # crypto_core_hchacha20(state->k, in, k, NULL); + $subkey = ParagonIE_Sodium_Core_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core_Util::substr($header, 0, 16), + $key + ); + $state = new ParagonIE_Sodium_Core_SecretStream_State( + $subkey, + ParagonIE_Sodium_Core_Util::substr($header, 16) + ); + $state->counterReset(); + # memcpy(STATE_INONCE(state), in + crypto_core_hchacha20_INPUTBYTES, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + # memset(state->_pad, 0, sizeof state->_pad); + # return 0; + return $state->toString(); + } + + /** + * @param string $state + * @param string $msg + * @param string $aad + * @param int $tag + * @return string + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_push(&$state, $msg, $aad = '', $tag = 0) + { + $st = ParagonIE_Sodium_Core_SecretStream_State::fromString($state); + # crypto_onetimeauth_poly1305_state poly1305_state; + # unsigned char block[64U]; + # unsigned char slen[8U]; + # unsigned char *c; + # unsigned char *mac; + + $msglen = ParagonIE_Sodium_Core_Util::strlen($msg); + $aadlen = ParagonIE_Sodium_Core_Util::strlen($aad); + + if ((($msglen + 63) >> 6) > 0xfffffffe) { + throw new SodiumException( + 'message cannot be larger than SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX bytes' + ); + } + + # if (outlen_p != NULL) { + # *outlen_p = 0U; + # } + # if (mlen > crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX) { + # sodium_misuse(); + # } + + # crypto_stream_chacha20_ietf(block, sizeof block, state->nonce, state->k); + # crypto_onetimeauth_poly1305_init(&poly1305_state, block); + # sodium_memzero(block, sizeof block); + $auth = new ParagonIE_Sodium_Core_Poly1305_State( + ParagonIE_Sodium_Core_ChaCha20::ietfStream(32, $st->getCombinedNonce(), $st->getKey()) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, ad, adlen); + $auth->update($aad); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, _pad0, + # (0x10 - adlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - $aadlen) & 0xf))); + + # memset(block, 0, sizeof block); + # block[0] = tag; + # crypto_stream_chacha20_ietf_xor_ic(block, block, sizeof block, + # state->nonce, 1U, state->k); + $block = ParagonIE_Sodium_Core_ChaCha20::ietfStreamXorIc( + ParagonIE_Sodium_Core_Util::intToChr($tag) . str_repeat("\0", 63), + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, block, sizeof block); + $auth->update($block); + + # out[0] = block[0]; + $out = $block[0]; + # c = out + (sizeof tag); + # crypto_stream_chacha20_ietf_xor_ic(c, m, mlen, state->nonce, 2U, state->k); + $cipher = ParagonIE_Sodium_Core_ChaCha20::ietfStreamXorIc( + $msg, + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core_Util::store64_le(2) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, c, mlen); + $auth->update($cipher); + + $out .= $cipher; + unset($cipher); + + # crypto_onetimeauth_poly1305_update + # (&poly1305_state, _pad0, (0x10 - (sizeof block) + mlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - 64 + $msglen) & 0xf))); + + # STORE64_LE(slen, (uint64_t) adlen); + $slen = ParagonIE_Sodium_Core_Util::store64_le($aadlen); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $auth->update($slen); + + # STORE64_LE(slen, (sizeof block) + mlen); + $slen = ParagonIE_Sodium_Core_Util::store64_le(64 + $msglen); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $auth->update($slen); + + # mac = c + mlen; + # crypto_onetimeauth_poly1305_final(&poly1305_state, mac); + $mac = $auth->finish(); + $out .= $mac; + + # sodium_memzero(&poly1305_state, sizeof poly1305_state); + unset($auth); + + + # XOR_BUF(STATE_INONCE(state), mac, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + $st->xorNonce($mac); + + # sodium_increment(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES); + $st->incrementCounter(); + // Overwrite by reference: + $state = $st->toString(); + + /** @var bool $rekey */ + $rekey = ($tag & ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY) !== 0; + # if ((tag & crypto_secretstream_xchacha20poly1305_TAG_REKEY) != 0 || + # sodium_is_zero(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES)) { + # crypto_secretstream_xchacha20poly1305_rekey(state); + # } + if ($rekey || $st->needsRekey()) { + // DO REKEY + self::secretstream_xchacha20poly1305_rekey($state); + } + # if (outlen_p != NULL) { + # *outlen_p = crypto_secretstream_xchacha20poly1305_ABYTES + mlen; + # } + return $out; + } + + /** + * @param string $state + * @param string $cipher + * @param string $aad + * @return bool|array{0: string, 1: int} + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_pull(&$state, $cipher, $aad = '') + { + $st = ParagonIE_Sodium_Core_SecretStream_State::fromString($state); + + $cipherlen = ParagonIE_Sodium_Core_Util::strlen($cipher); + # mlen = inlen - crypto_secretstream_xchacha20poly1305_ABYTES; + $msglen = $cipherlen - ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES; + $aadlen = ParagonIE_Sodium_Core_Util::strlen($aad); + + # if (mlen > crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX) { + # sodium_misuse(); + # } + if ((($msglen + 63) >> 6) > 0xfffffffe) { + throw new SodiumException( + 'message cannot be larger than SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX bytes' + ); + } + + # crypto_stream_chacha20_ietf(block, sizeof block, state->nonce, state->k); + # crypto_onetimeauth_poly1305_init(&poly1305_state, block); + # sodium_memzero(block, sizeof block); + $auth = new ParagonIE_Sodium_Core_Poly1305_State( + ParagonIE_Sodium_Core_ChaCha20::ietfStream(32, $st->getCombinedNonce(), $st->getKey()) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, ad, adlen); + $auth->update($aad); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, _pad0, + # (0x10 - adlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - $aadlen) & 0xf))); + + + # memset(block, 0, sizeof block); + # block[0] = in[0]; + # crypto_stream_chacha20_ietf_xor_ic(block, block, sizeof block, + # state->nonce, 1U, state->k); + $block = ParagonIE_Sodium_Core_ChaCha20::ietfStreamXorIc( + $cipher[0] . str_repeat("\0", 63), + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core_Util::store64_le(1) + ); + # tag = block[0]; + # block[0] = in[0]; + # crypto_onetimeauth_poly1305_update(&poly1305_state, block, sizeof block); + $tag = ParagonIE_Sodium_Core_Util::chrToInt($block[0]); + $block[0] = $cipher[0]; + $auth->update($block); + + + # c = in + (sizeof tag); + # crypto_onetimeauth_poly1305_update(&poly1305_state, c, mlen); + $auth->update(ParagonIE_Sodium_Core_Util::substr($cipher, 1, $msglen)); + + # crypto_onetimeauth_poly1305_update + # (&poly1305_state, _pad0, (0x10 - (sizeof block) + mlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - 64 + $msglen) & 0xf))); + + # STORE64_LE(slen, (uint64_t) adlen); + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $slen = ParagonIE_Sodium_Core_Util::store64_le($aadlen); + $auth->update($slen); + + # STORE64_LE(slen, (sizeof block) + mlen); + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $slen = ParagonIE_Sodium_Core_Util::store64_le(64 + $msglen); + $auth->update($slen); + + # crypto_onetimeauth_poly1305_final(&poly1305_state, mac); + # sodium_memzero(&poly1305_state, sizeof poly1305_state); + $mac = $auth->finish(); + + # stored_mac = c + mlen; + # if (sodium_memcmp(mac, stored_mac, sizeof mac) != 0) { + # sodium_memzero(mac, sizeof mac); + # return -1; + # } + + $stored = ParagonIE_Sodium_Core_Util::substr($cipher, $msglen + 1, 16); + if (!ParagonIE_Sodium_Core_Util::hashEquals($mac, $stored)) { + return false; + } + + # crypto_stream_chacha20_ietf_xor_ic(m, c, mlen, state->nonce, 2U, state->k); + $out = ParagonIE_Sodium_Core_ChaCha20::ietfStreamXorIc( + ParagonIE_Sodium_Core_Util::substr($cipher, 1, $msglen), + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core_Util::store64_le(2) + ); + + # XOR_BUF(STATE_INONCE(state), mac, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + $st->xorNonce($mac); + + # sodium_increment(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES); + $st->incrementCounter(); + + # if ((tag & crypto_secretstream_xchacha20poly1305_TAG_REKEY) != 0 || + # sodium_is_zero(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES)) { + # crypto_secretstream_xchacha20poly1305_rekey(state); + # } + + // Overwrite by reference: + $state = $st->toString(); + + /** @var bool $rekey */ + $rekey = ($tag & ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY) !== 0; + if ($rekey || $st->needsRekey()) { + // DO REKEY + self::secretstream_xchacha20poly1305_rekey($state); + } + return array($out, $tag); + } + + /** + * @param string $state + * @return void + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_rekey(&$state) + { + $st = ParagonIE_Sodium_Core_SecretStream_State::fromString($state); + # unsigned char new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + + # crypto_secretstream_xchacha20poly1305_INONCEBYTES]; + # size_t i; + # for (i = 0U; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) { + # new_key_and_inonce[i] = state->k[i]; + # } + $new_key_and_inonce = $st->getKey(); + + # for (i = 0U; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) { + # new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i] = + # STATE_INONCE(state)[i]; + # } + $new_key_and_inonce .= ParagonIE_Sodium_Core_Util::substR($st->getNonce(), 0, 8); + + # crypto_stream_chacha20_ietf_xor(new_key_and_inonce, new_key_and_inonce, + # sizeof new_key_and_inonce, + # state->nonce, state->k); + + $st->rekey(ParagonIE_Sodium_Core_ChaCha20::ietfStreamXorIc( + $new_key_and_inonce, + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core_Util::store64_le(0) + )); + + # for (i = 0U; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) { + # state->k[i] = new_key_and_inonce[i]; + # } + # for (i = 0U; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) { + # STATE_INONCE(state)[i] = + # new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i]; + # } + # _crypto_secretstream_xchacha20poly1305_counter_reset(state); + $st->counterReset(); + + $state = $st->toString(); + } + + /** + * Detached Ed25519 signature. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $sk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sign_detached($message, $sk) + { + return ParagonIE_Sodium_Core_Ed25519::sign_detached($message, $sk); + } + + /** + * Attached Ed25519 signature. (Returns a signed message.) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $sk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sign($message, $sk) + { + return ParagonIE_Sodium_Core_Ed25519::sign($message, $sk); + } + + /** + * Opens a signed message. If valid, returns the message. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $signedMessage + * @param string $pk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sign_open($signedMessage, $pk) + { + return ParagonIE_Sodium_Core_Ed25519::sign_open($signedMessage, $pk); + } + + /** + * Verify a detached signature of a given message and public key. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $signature + * @param string $message + * @param string $pk + * @return bool + * @throws SodiumException + * @throws TypeError + */ + public static function sign_verify_detached($signature, $message, $pk) + { + return ParagonIE_Sodium_Core_Ed25519::verify_detached($signature, $message, $pk); + } +} diff --git a/vendor/paragonie/sodium_compat/src/Crypto32.php b/vendor/paragonie/sodium_compat/src/Crypto32.php new file mode 100644 index 0000000..34c0d7a --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/Crypto32.php @@ -0,0 +1,1654 @@ +<?php + +if (class_exists('ParagonIE_Sodium_Crypto32', false)) { + return; +} + +/** + * Class ParagonIE_Sodium_Crypto + * + * ATTENTION! + * + * If you are using this library, you should be using + * ParagonIE_Sodium_Compat in your code, not this class. + */ +abstract class ParagonIE_Sodium_Crypto32 +{ + const aead_chacha20poly1305_KEYBYTES = 32; + const aead_chacha20poly1305_NSECBYTES = 0; + const aead_chacha20poly1305_NPUBBYTES = 8; + const aead_chacha20poly1305_ABYTES = 16; + + const aead_chacha20poly1305_IETF_KEYBYTES = 32; + const aead_chacha20poly1305_IETF_NSECBYTES = 0; + const aead_chacha20poly1305_IETF_NPUBBYTES = 12; + const aead_chacha20poly1305_IETF_ABYTES = 16; + + const aead_xchacha20poly1305_IETF_KEYBYTES = 32; + const aead_xchacha20poly1305_IETF_NSECBYTES = 0; + const aead_xchacha20poly1305_IETF_NPUBBYTES = 24; + const aead_xchacha20poly1305_IETF_ABYTES = 16; + + const box_curve25519xsalsa20poly1305_SEEDBYTES = 32; + const box_curve25519xsalsa20poly1305_PUBLICKEYBYTES = 32; + const box_curve25519xsalsa20poly1305_SECRETKEYBYTES = 32; + const box_curve25519xsalsa20poly1305_BEFORENMBYTES = 32; + const box_curve25519xsalsa20poly1305_NONCEBYTES = 24; + const box_curve25519xsalsa20poly1305_MACBYTES = 16; + const box_curve25519xsalsa20poly1305_BOXZEROBYTES = 16; + const box_curve25519xsalsa20poly1305_ZEROBYTES = 32; + + const onetimeauth_poly1305_BYTES = 16; + const onetimeauth_poly1305_KEYBYTES = 32; + + const secretbox_xsalsa20poly1305_KEYBYTES = 32; + const secretbox_xsalsa20poly1305_NONCEBYTES = 24; + const secretbox_xsalsa20poly1305_MACBYTES = 16; + const secretbox_xsalsa20poly1305_BOXZEROBYTES = 16; + const secretbox_xsalsa20poly1305_ZEROBYTES = 32; + + const secretbox_xchacha20poly1305_KEYBYTES = 32; + const secretbox_xchacha20poly1305_NONCEBYTES = 24; + const secretbox_xchacha20poly1305_MACBYTES = 16; + const secretbox_xchacha20poly1305_BOXZEROBYTES = 16; + const secretbox_xchacha20poly1305_ZEROBYTES = 32; + + const stream_salsa20_KEYBYTES = 32; + + /** + * AEAD Decryption with ChaCha20-Poly1305 + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_decrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $len - Length of message (ciphertext + MAC) */ + $len = ParagonIE_Sodium_Core32_Util::strlen($message); + + /** @var int $clen - Length of ciphertext */ + $clen = $len - self::aead_chacha20poly1305_ABYTES; + + /** @var int $adlen - Length of associated data */ + $adlen = ParagonIE_Sodium_Core32_Util::strlen($ad); + + /** @var string $mac - Message authentication code */ + $mac = ParagonIE_Sodium_Core32_Util::substr( + $message, + $clen, + self::aead_chacha20poly1305_ABYTES + ); + + /** @var string $ciphertext - The encrypted message (sans MAC) */ + $ciphertext = ParagonIE_Sodium_Core32_Util::substr($message, 0, $clen); + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core32_ChaCha20::stream( + 32, + $nonce, + $key + ); + + /* Recalculate the Poly1305 authentication tag (MAC): */ + $state = new ParagonIE_Sodium_Core32_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + $state->update($ad); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen)); + $state->update($ciphertext); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($clen)); + $computed_mac = $state->finish(); + + /* Compare the given MAC with the recalculated MAC: */ + if (!ParagonIE_Sodium_Core32_Util::verify_16($computed_mac, $mac)) { + throw new SodiumException('Invalid MAC'); + } + + // Here, we know that the MAC is valid, so we decrypt and return the plaintext + return ParagonIE_Sodium_Core32_ChaCha20::streamXorIc( + $ciphertext, + $nonce, + $key, + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + } + + /** + * AEAD Encryption with ChaCha20-Poly1305 + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_encrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $len - Length of the plaintext message */ + $len = ParagonIE_Sodium_Core32_Util::strlen($message); + + /** @var int $adlen - Length of the associated data */ + $adlen = ParagonIE_Sodium_Core32_Util::strlen($ad); + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core32_ChaCha20::stream( + 32, + $nonce, + $key + ); + $state = new ParagonIE_Sodium_Core32_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + + /** @var string $ciphertext - Raw encrypted data */ + $ciphertext = ParagonIE_Sodium_Core32_ChaCha20::streamXorIc( + $message, + $nonce, + $key, + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + + $state->update($ad); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen)); + $state->update($ciphertext); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($len)); + return $ciphertext . $state->finish(); + } + + /** + * AEAD Decryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_ietf_decrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $adlen - Length of associated data */ + $adlen = ParagonIE_Sodium_Core32_Util::strlen($ad); + + /** @var int $len - Length of message (ciphertext + MAC) */ + $len = ParagonIE_Sodium_Core32_Util::strlen($message); + + /** @var int $clen - Length of ciphertext */ + $clen = $len - self::aead_chacha20poly1305_IETF_ABYTES; + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core32_ChaCha20::ietfStream( + 32, + $nonce, + $key + ); + + /** @var string $mac - Message authentication code */ + $mac = ParagonIE_Sodium_Core32_Util::substr( + $message, + $len - self::aead_chacha20poly1305_IETF_ABYTES, + self::aead_chacha20poly1305_IETF_ABYTES + ); + + /** @var string $ciphertext - The encrypted message (sans MAC) */ + $ciphertext = ParagonIE_Sodium_Core32_Util::substr( + $message, + 0, + $len - self::aead_chacha20poly1305_IETF_ABYTES + ); + + /* Recalculate the Poly1305 authentication tag (MAC): */ + $state = new ParagonIE_Sodium_Core32_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + $state->update($ad); + $state->update(str_repeat("\x00", ((0x10 - $adlen) & 0xf))); + $state->update($ciphertext); + $state->update(str_repeat("\x00", (0x10 - $clen) & 0xf)); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen)); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($clen)); + $computed_mac = $state->finish(); + + /* Compare the given MAC with the recalculated MAC: */ + if (!ParagonIE_Sodium_Core32_Util::verify_16($computed_mac, $mac)) { + throw new SodiumException('Invalid MAC'); + } + + // Here, we know that the MAC is valid, so we decrypt and return the plaintext + return ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc( + $ciphertext, + $nonce, + $key, + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + } + + /** + * AEAD Encryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_chacha20poly1305_ietf_encrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + /** @var int $len - Length of the plaintext message */ + $len = ParagonIE_Sodium_Core32_Util::strlen($message); + + /** @var int $adlen - Length of the associated data */ + $adlen = ParagonIE_Sodium_Core32_Util::strlen($ad); + + /** @var string The first block of the chacha20 keystream, used as a poly1305 key */ + $block0 = ParagonIE_Sodium_Core32_ChaCha20::ietfStream( + 32, + $nonce, + $key + ); + $state = new ParagonIE_Sodium_Core32_Poly1305_State($block0); + try { + ParagonIE_Sodium_Compat::memzero($block0); + } catch (SodiumException $ex) { + $block0 = null; + } + + /** @var string $ciphertext - Raw encrypted data */ + $ciphertext = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc( + $message, + $nonce, + $key, + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + + $state->update($ad); + $state->update(str_repeat("\x00", ((0x10 - $adlen) & 0xf))); + $state->update($ciphertext); + $state->update(str_repeat("\x00", ((0x10 - $len) & 0xf))); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($adlen)); + $state->update(ParagonIE_Sodium_Core32_Util::store64_le($len)); + return $ciphertext . $state->finish(); + } + + /** + * AEAD Decryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_xchacha20poly1305_ietf_decrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16), + $key + ); + $nonceLast = "\x00\x00\x00\x00" . + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8); + + return self::aead_chacha20poly1305_ietf_decrypt($message, $ad, $nonceLast, $subkey); + } + + /** + * AEAD Encryption with ChaCha20-Poly1305, IETF mode (96-bit nonce) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $ad + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function aead_xchacha20poly1305_ietf_encrypt( + $message = '', + $ad = '', + $nonce = '', + $key = '' + ) { + $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16), + $key + ); + $nonceLast = "\x00\x00\x00\x00" . + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8); + + return self::aead_chacha20poly1305_ietf_encrypt($message, $ad, $nonceLast, $subkey); + } + + /** + * HMAC-SHA-512-256 (a.k.a. the leftmost 256 bits of HMAC-SHA-512) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $key + * @return string + * @throws TypeError + */ + public static function auth($message, $key) + { + return ParagonIE_Sodium_Core32_Util::substr( + hash_hmac('sha512', $message, $key, true), + 0, + 32 + ); + } + + /** + * HMAC-SHA-512-256 validation. Constant-time via hash_equals(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $mac + * @param string $message + * @param string $key + * @return bool + * @throws SodiumException + * @throws TypeError + */ + public static function auth_verify($mac, $message, $key) + { + return ParagonIE_Sodium_Core32_Util::hashEquals( + $mac, + self::auth($message, $key) + ); + } + + /** + * X25519 key exchange followed by XSalsa20Poly1305 symmetric encryption + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $plaintext + * @param string $nonce + * @param string $keypair + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box($plaintext, $nonce, $keypair) + { + return self::secretbox( + $plaintext, + $nonce, + self::box_beforenm( + self::box_secretkey($keypair), + self::box_publickey($keypair) + ) + ); + } + + /** + * X25519-XSalsa20-Poly1305 with one ephemeral X25519 keypair. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $publicKey + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_seal($message, $publicKey) + { + /** @var string $ephemeralKeypair */ + $ephemeralKeypair = self::box_keypair(); + + /** @var string $ephemeralSK */ + $ephemeralSK = self::box_secretkey($ephemeralKeypair); + + /** @var string $ephemeralPK */ + $ephemeralPK = self::box_publickey($ephemeralKeypair); + + /** @var string $nonce */ + $nonce = self::generichash( + $ephemeralPK . $publicKey, + '', + 24 + ); + + /** @var string $keypair - The combined keypair used in crypto_box() */ + $keypair = self::box_keypair_from_secretkey_and_publickey($ephemeralSK, $publicKey); + + /** @var string $ciphertext Ciphertext + MAC from crypto_box */ + $ciphertext = self::box($message, $nonce, $keypair); + try { + ParagonIE_Sodium_Compat::memzero($ephemeralKeypair); + ParagonIE_Sodium_Compat::memzero($ephemeralSK); + ParagonIE_Sodium_Compat::memzero($nonce); + } catch (SodiumException $ex) { + $ephemeralKeypair = null; + $ephemeralSK = null; + $nonce = null; + } + return $ephemeralPK . $ciphertext; + } + + /** + * Opens a message encrypted via box_seal(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $keypair + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_seal_open($message, $keypair) + { + /** @var string $ephemeralPK */ + $ephemeralPK = ParagonIE_Sodium_Core32_Util::substr($message, 0, 32); + + /** @var string $ciphertext (ciphertext + MAC) */ + $ciphertext = ParagonIE_Sodium_Core32_Util::substr($message, 32); + + /** @var string $secretKey */ + $secretKey = self::box_secretkey($keypair); + + /** @var string $publicKey */ + $publicKey = self::box_publickey($keypair); + + /** @var string $nonce */ + $nonce = self::generichash( + $ephemeralPK . $publicKey, + '', + 24 + ); + + /** @var string $keypair */ + $keypair = self::box_keypair_from_secretkey_and_publickey($secretKey, $ephemeralPK); + + /** @var string $m */ + $m = self::box_open($ciphertext, $nonce, $keypair); + try { + ParagonIE_Sodium_Compat::memzero($secretKey); + ParagonIE_Sodium_Compat::memzero($ephemeralPK); + ParagonIE_Sodium_Compat::memzero($nonce); + } catch (SodiumException $ex) { + $secretKey = null; + $ephemeralPK = null; + $nonce = null; + } + return $m; + } + + /** + * Used by crypto_box() to get the crypto_secretbox() key. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sk + * @param string $pk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_beforenm($sk, $pk) + { + return ParagonIE_Sodium_Core32_HSalsa20::hsalsa20( + str_repeat("\x00", 16), + self::scalarmult($sk, $pk) + ); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @return string + * @throws Exception + * @throws SodiumException + * @throws TypeError + */ + public static function box_keypair() + { + $sKey = random_bytes(32); + $pKey = self::scalarmult_base($sKey); + return $sKey . $pKey; + } + + /** + * @param string $seed + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_seed_keypair($seed) + { + $sKey = ParagonIE_Sodium_Core32_Util::substr( + hash('sha512', $seed, true), + 0, + 32 + ); + $pKey = self::scalarmult_base($sKey); + return $sKey . $pKey; + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sKey + * @param string $pKey + * @return string + * @throws TypeError + */ + public static function box_keypair_from_secretkey_and_publickey($sKey, $pKey) + { + return ParagonIE_Sodium_Core32_Util::substr($sKey, 0, 32) . + ParagonIE_Sodium_Core32_Util::substr($pKey, 0, 32); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $keypair + * @return string + * @throws RangeException + * @throws TypeError + */ + public static function box_secretkey($keypair) + { + if (ParagonIE_Sodium_Core32_Util::strlen($keypair) !== 64) { + throw new RangeException( + 'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES bytes long.' + ); + } + return ParagonIE_Sodium_Core32_Util::substr($keypair, 0, 32); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $keypair + * @return string + * @throws RangeException + * @throws TypeError + */ + public static function box_publickey($keypair) + { + if (ParagonIE_Sodium_Core32_Util::strlen($keypair) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES) { + throw new RangeException( + 'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_KEYPAIRBYTES bytes long.' + ); + } + return ParagonIE_Sodium_Core32_Util::substr($keypair, 32, 32); + } + + /** + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sKey + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function box_publickey_from_secretkey($sKey) + { + if (ParagonIE_Sodium_Core32_Util::strlen($sKey) !== ParagonIE_Sodium_Compat::CRYPTO_BOX_SECRETKEYBYTES) { + throw new RangeException( + 'Must be ParagonIE_Sodium_Compat::CRYPTO_BOX_SECRETKEYBYTES bytes long.' + ); + } + return self::scalarmult_base($sKey); + } + + /** + * Decrypt a message encrypted with box(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ciphertext + * @param string $nonce + * @param string $keypair + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function box_open($ciphertext, $nonce, $keypair) + { + return self::secretbox_open( + $ciphertext, + $nonce, + self::box_beforenm( + self::box_secretkey($keypair), + self::box_publickey($keypair) + ) + ); + } + + /** + * Calculate a BLAKE2b hash. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string|null $key + * @param int $outlen + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function generichash($message, $key = '', $outlen = 32) + { + // This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor(); + + $k = null; + if (!empty($key)) { + /** @var SplFixedArray $k */ + $k = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($key); + if ($k->count() > ParagonIE_Sodium_Core32_BLAKE2b::KEYBYTES) { + throw new RangeException('Invalid key size'); + } + } + + /** @var SplFixedArray $in */ + $in = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($message); + + /** @var SplFixedArray $ctx */ + $ctx = ParagonIE_Sodium_Core32_BLAKE2b::init($k, $outlen); + ParagonIE_Sodium_Core32_BLAKE2b::update($ctx, $in, $in->count()); + + /** @var SplFixedArray $out */ + $out = new SplFixedArray($outlen); + $out = ParagonIE_Sodium_Core32_BLAKE2b::finish($ctx, $out); + + /** @var array<int, int> */ + $outArray = $out->toArray(); + return ParagonIE_Sodium_Core32_Util::intArrayToString($outArray); + } + + /** + * Finalize a BLAKE2b hashing context, returning the hash. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ctx + * @param int $outlen + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_final($ctx, $outlen = 32) + { + if (!is_string($ctx)) { + throw new TypeError('Context must be a string'); + } + $out = new SplFixedArray($outlen); + + /** @var SplFixedArray $context */ + $context = ParagonIE_Sodium_Core32_BLAKE2b::stringToContext($ctx); + + /** @var SplFixedArray $out */ + $out = ParagonIE_Sodium_Core32_BLAKE2b::finish($context, $out); + + /** @var array<int, int> */ + $outArray = $out->toArray(); + return ParagonIE_Sodium_Core32_Util::intArrayToString($outArray); + } + + /** + * Initialize a hashing context for BLAKE2b. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $key + * @param int $outputLength + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_init($key = '', $outputLength = 32) + { + // This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor(); + + $k = null; + if (!empty($key)) { + $k = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($key); + if ($k->count() > ParagonIE_Sodium_Core32_BLAKE2b::KEYBYTES) { + throw new RangeException('Invalid key size'); + } + } + + /** @var SplFixedArray $ctx */ + $ctx = ParagonIE_Sodium_Core32_BLAKE2b::init($k, $outputLength); + + return ParagonIE_Sodium_Core32_BLAKE2b::contextToString($ctx); + } + + /** + * Initialize a hashing context for BLAKE2b. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $key + * @param int $outputLength + * @param string $salt + * @param string $personal + * @return string + * @throws RangeException + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_init_salt_personal( + $key = '', + $outputLength = 32, + $salt = '', + $personal = '' + ) { + // This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor(); + + $k = null; + if (!empty($key)) { + $k = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($key); + if ($k->count() > ParagonIE_Sodium_Core32_BLAKE2b::KEYBYTES) { + throw new RangeException('Invalid key size'); + } + } + if (!empty($salt)) { + $s = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($salt); + } else { + $s = null; + } + if (!empty($salt)) { + $p = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($personal); + } else { + $p = null; + } + + /** @var SplFixedArray $ctx */ + $ctx = ParagonIE_Sodium_Core32_BLAKE2b::init($k, $outputLength, $s, $p); + + return ParagonIE_Sodium_Core32_BLAKE2b::contextToString($ctx); + } + + /** + * Update a hashing context for BLAKE2b with $message + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ctx + * @param string $message + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function generichash_update($ctx, $message) + { + // This ensures that ParagonIE_Sodium_Core32_BLAKE2b::$iv is initialized + ParagonIE_Sodium_Core32_BLAKE2b::pseudoConstructor(); + + /** @var SplFixedArray $context */ + $context = ParagonIE_Sodium_Core32_BLAKE2b::stringToContext($ctx); + + /** @var SplFixedArray $in */ + $in = ParagonIE_Sodium_Core32_BLAKE2b::stringToSplFixedArray($message); + + ParagonIE_Sodium_Core32_BLAKE2b::update($context, $in, $in->count()); + + return ParagonIE_Sodium_Core32_BLAKE2b::contextToString($context); + } + + /** + * Libsodium's crypto_kx(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $my_sk + * @param string $their_pk + * @param string $client_pk + * @param string $server_pk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function keyExchange($my_sk, $their_pk, $client_pk, $server_pk) + { + return self::generichash( + self::scalarmult($my_sk, $their_pk) . + $client_pk . + $server_pk + ); + } + + /** + * ECDH over Curve25519 + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $sKey + * @param string $pKey + * @return string + * + * @throws SodiumException + * @throws TypeError + */ + public static function scalarmult($sKey, $pKey) + { + $q = ParagonIE_Sodium_Core32_X25519::crypto_scalarmult_curve25519_ref10($sKey, $pKey); + self::scalarmult_throw_if_zero($q); + return $q; + } + + /** + * ECDH over Curve25519, using the basepoint. + * Used to get a secret key from a public key. + * + * @param string $secret + * @return string + * + * @throws SodiumException + * @throws TypeError + */ + public static function scalarmult_base($secret) + { + $q = ParagonIE_Sodium_Core32_X25519::crypto_scalarmult_curve25519_ref10_base($secret); + self::scalarmult_throw_if_zero($q); + return $q; + } + + /** + * This throws an Error if a zero public key was passed to the function. + * + * @param string $q + * @return void + * @throws SodiumException + * @throws TypeError + */ + protected static function scalarmult_throw_if_zero($q) + { + $d = 0; + for ($i = 0; $i < self::box_curve25519xsalsa20poly1305_SECRETKEYBYTES; ++$i) { + $d |= ParagonIE_Sodium_Core32_Util::chrToInt($q[$i]); + } + + /* branch-free variant of === 0 */ + if (-(1 & (($d - 1) >> 8))) { + throw new SodiumException('Zero public key is not allowed'); + } + } + + /** + * XSalsa20-Poly1305 authenticated symmetric-key encryption. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $plaintext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox($plaintext, $nonce, $key) + { + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key); + + /** @var string $block0 */ + $block0 = str_repeat("\x00", 32); + + /** @var int $mlen - Length of the plaintext message */ + $mlen = ParagonIE_Sodium_Core32_Util::strlen($plaintext); + $mlen0 = $mlen; + if ($mlen0 > 64 - self::secretbox_xsalsa20poly1305_ZEROBYTES) { + $mlen0 = 64 - self::secretbox_xsalsa20poly1305_ZEROBYTES; + } + $block0 .= ParagonIE_Sodium_Core32_Util::substr($plaintext, 0, $mlen0); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20_xor( + $block0, + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8), + $subkey + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core32_Util::substr( + $block0, + self::secretbox_xsalsa20poly1305_ZEROBYTES + ); + if ($mlen > $mlen0) { + $c .= ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic( + ParagonIE_Sodium_Core32_Util::substr( + $plaintext, + self::secretbox_xsalsa20poly1305_ZEROBYTES + ), + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8), + 1, + $subkey + ); + } + $state = new ParagonIE_Sodium_Core32_Poly1305_State( + ParagonIE_Sodium_Core32_Util::substr( + $block0, + 0, + self::onetimeauth_poly1305_KEYBYTES + ) + ); + try { + ParagonIE_Sodium_Compat::memzero($block0); + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $block0 = null; + $subkey = null; + } + + $state->update($c); + + /** @var string $c - MAC || ciphertext */ + $c = $state->finish() . $c; + unset($state); + + return $c; + } + + /** + * Decrypt a ciphertext generated via secretbox(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ciphertext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox_open($ciphertext, $nonce, $key) + { + /** @var string $mac */ + $mac = ParagonIE_Sodium_Core32_Util::substr( + $ciphertext, + 0, + self::secretbox_xsalsa20poly1305_MACBYTES + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core32_Util::substr( + $ciphertext, + self::secretbox_xsalsa20poly1305_MACBYTES + ); + + /** @var int $clen */ + $clen = ParagonIE_Sodium_Core32_Util::strlen($c); + + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core32_HSalsa20::hsalsa20($nonce, $key); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core32_Salsa20::salsa20( + 64, + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8), + $subkey + ); + $verified = ParagonIE_Sodium_Core32_Poly1305::onetimeauth_verify( + $mac, + $c, + ParagonIE_Sodium_Core32_Util::substr($block0, 0, 32) + ); + if (!$verified) { + try { + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $subkey = null; + } + throw new SodiumException('Invalid MAC'); + } + + /** @var string $m - Decrypted message */ + $m = ParagonIE_Sodium_Core32_Util::xorStrings( + ParagonIE_Sodium_Core32_Util::substr($block0, self::secretbox_xsalsa20poly1305_ZEROBYTES), + ParagonIE_Sodium_Core32_Util::substr($c, 0, self::secretbox_xsalsa20poly1305_ZEROBYTES) + ); + if ($clen > self::secretbox_xsalsa20poly1305_ZEROBYTES) { + // We had more than 1 block, so let's continue to decrypt the rest. + $m .= ParagonIE_Sodium_Core32_Salsa20::salsa20_xor_ic( + ParagonIE_Sodium_Core32_Util::substr( + $c, + self::secretbox_xsalsa20poly1305_ZEROBYTES + ), + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8), + 1, + (string) $subkey + ); + } + return $m; + } + + /** + * XChaCha20-Poly1305 authenticated symmetric-key encryption. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $plaintext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox_xchacha20poly1305($plaintext, $nonce, $key) + { + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core32_Util::substr($nonce, 0, 16), + $key + ); + $nonceLast = ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8); + + /** @var string $block0 */ + $block0 = str_repeat("\x00", 32); + + /** @var int $mlen - Length of the plaintext message */ + $mlen = ParagonIE_Sodium_Core32_Util::strlen($plaintext); + $mlen0 = $mlen; + if ($mlen0 > 64 - self::secretbox_xchacha20poly1305_ZEROBYTES) { + $mlen0 = 64 - self::secretbox_xchacha20poly1305_ZEROBYTES; + } + $block0 .= ParagonIE_Sodium_Core32_Util::substr($plaintext, 0, $mlen0); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core32_ChaCha20::streamXorIc( + $block0, + $nonceLast, + $subkey + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core32_Util::substr( + $block0, + self::secretbox_xchacha20poly1305_ZEROBYTES + ); + if ($mlen > $mlen0) { + $c .= ParagonIE_Sodium_Core32_ChaCha20::streamXorIc( + ParagonIE_Sodium_Core32_Util::substr( + $plaintext, + self::secretbox_xchacha20poly1305_ZEROBYTES + ), + $nonceLast, + $subkey, + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + } + $state = new ParagonIE_Sodium_Core32_Poly1305_State( + ParagonIE_Sodium_Core32_Util::substr( + $block0, + 0, + self::onetimeauth_poly1305_KEYBYTES + ) + ); + try { + ParagonIE_Sodium_Compat::memzero($block0); + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $block0 = null; + $subkey = null; + } + + $state->update($c); + + /** @var string $c - MAC || ciphertext */ + $c = $state->finish() . $c; + unset($state); + + return $c; + } + + /** + * Decrypt a ciphertext generated via secretbox_xchacha20poly1305(). + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $ciphertext + * @param string $nonce + * @param string $key + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function secretbox_xchacha20poly1305_open($ciphertext, $nonce, $key) + { + /** @var string $mac */ + $mac = ParagonIE_Sodium_Core32_Util::substr( + $ciphertext, + 0, + self::secretbox_xchacha20poly1305_MACBYTES + ); + + /** @var string $c */ + $c = ParagonIE_Sodium_Core32_Util::substr( + $ciphertext, + self::secretbox_xchacha20poly1305_MACBYTES + ); + + /** @var int $clen */ + $clen = ParagonIE_Sodium_Core32_Util::strlen($c); + + /** @var string $subkey */ + $subkey = ParagonIE_Sodium_Core32_HChaCha20::hchacha20($nonce, $key); + + /** @var string $block0 */ + $block0 = ParagonIE_Sodium_Core32_ChaCha20::stream( + 64, + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8), + $subkey + ); + $verified = ParagonIE_Sodium_Core32_Poly1305::onetimeauth_verify( + $mac, + $c, + ParagonIE_Sodium_Core32_Util::substr($block0, 0, 32) + ); + + if (!$verified) { + try { + ParagonIE_Sodium_Compat::memzero($subkey); + } catch (SodiumException $ex) { + $subkey = null; + } + throw new SodiumException('Invalid MAC'); + } + + /** @var string $m - Decrypted message */ + $m = ParagonIE_Sodium_Core32_Util::xorStrings( + ParagonIE_Sodium_Core32_Util::substr($block0, self::secretbox_xchacha20poly1305_ZEROBYTES), + ParagonIE_Sodium_Core32_Util::substr($c, 0, self::secretbox_xchacha20poly1305_ZEROBYTES) + ); + + if ($clen > self::secretbox_xchacha20poly1305_ZEROBYTES) { + // We had more than 1 block, so let's continue to decrypt the rest. + $m .= ParagonIE_Sodium_Core32_ChaCha20::streamXorIc( + ParagonIE_Sodium_Core32_Util::substr( + $c, + self::secretbox_xchacha20poly1305_ZEROBYTES + ), + ParagonIE_Sodium_Core32_Util::substr($nonce, 16, 8), + (string) $subkey, + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + } + return $m; + } + + /** + * @param string $key + * @return array<int, string> Returns a state and a header. + * @throws Exception + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_init_push($key) + { + # randombytes_buf(out, crypto_secretstream_xchacha20poly1305_HEADERBYTES); + $out = random_bytes(24); + + # crypto_core_hchacha20(state->k, out, k, NULL); + $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20($out, $key); + $state = new ParagonIE_Sodium_Core32_SecretStream_State( + $subkey, + ParagonIE_Sodium_Core32_Util::substr($out, 16, 8) . str_repeat("\0", 4) + ); + + # _crypto_secretstream_xchacha20poly1305_counter_reset(state); + $state->counterReset(); + + # memcpy(STATE_INONCE(state), out + crypto_core_hchacha20_INPUTBYTES, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + # memset(state->_pad, 0, sizeof state->_pad); + return array( + $state->toString(), + $out + ); + } + + /** + * @param string $key + * @param string $header + * @return string Returns a state. + * @throws Exception + */ + public static function secretstream_xchacha20poly1305_init_pull($key, $header) + { + # crypto_core_hchacha20(state->k, in, k, NULL); + $subkey = ParagonIE_Sodium_Core32_HChaCha20::hChaCha20( + ParagonIE_Sodium_Core32_Util::substr($header, 0, 16), + $key + ); + $state = new ParagonIE_Sodium_Core32_SecretStream_State( + $subkey, + ParagonIE_Sodium_Core32_Util::substr($header, 16) + ); + $state->counterReset(); + # memcpy(STATE_INONCE(state), in + crypto_core_hchacha20_INPUTBYTES, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + # memset(state->_pad, 0, sizeof state->_pad); + # return 0; + return $state->toString(); + } + + /** + * @param string $state + * @param string $msg + * @param string $aad + * @param int $tag + * @return string + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_push(&$state, $msg, $aad = '', $tag = 0) + { + $st = ParagonIE_Sodium_Core32_SecretStream_State::fromString($state); + # crypto_onetimeauth_poly1305_state poly1305_state; + # unsigned char block[64U]; + # unsigned char slen[8U]; + # unsigned char *c; + # unsigned char *mac; + + $msglen = ParagonIE_Sodium_Core32_Util::strlen($msg); + $aadlen = ParagonIE_Sodium_Core32_Util::strlen($aad); + + if ((($msglen + 63) >> 6) > 0xfffffffe) { + throw new SodiumException( + 'message cannot be larger than SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX bytes' + ); + } + + # if (outlen_p != NULL) { + # *outlen_p = 0U; + # } + # if (mlen > crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX) { + # sodium_misuse(); + # } + + # crypto_stream_chacha20_ietf(block, sizeof block, state->nonce, state->k); + # crypto_onetimeauth_poly1305_init(&poly1305_state, block); + # sodium_memzero(block, sizeof block); + $auth = new ParagonIE_Sodium_Core32_Poly1305_State( + ParagonIE_Sodium_Core32_ChaCha20::ietfStream(32, $st->getCombinedNonce(), $st->getKey()) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, ad, adlen); + $auth->update($aad); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, _pad0, + # (0x10 - adlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - $aadlen) & 0xf))); + + # memset(block, 0, sizeof block); + # block[0] = tag; + # crypto_stream_chacha20_ietf_xor_ic(block, block, sizeof block, + # state->nonce, 1U, state->k); + $block = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc( + ParagonIE_Sodium_Core32_Util::intToChr($tag) . str_repeat("\0", 63), + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, block, sizeof block); + $auth->update($block); + + # out[0] = block[0]; + $out = $block[0]; + # c = out + (sizeof tag); + # crypto_stream_chacha20_ietf_xor_ic(c, m, mlen, state->nonce, 2U, state->k); + $cipher = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc( + $msg, + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core32_Util::store64_le(2) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, c, mlen); + $auth->update($cipher); + + $out .= $cipher; + unset($cipher); + + # crypto_onetimeauth_poly1305_update + # (&poly1305_state, _pad0, (0x10 - (sizeof block) + mlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - 64 + $msglen) & 0xf))); + + # STORE64_LE(slen, (uint64_t) adlen); + $slen = ParagonIE_Sodium_Core32_Util::store64_le($aadlen); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $auth->update($slen); + + # STORE64_LE(slen, (sizeof block) + mlen); + $slen = ParagonIE_Sodium_Core32_Util::store64_le(64 + $msglen); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $auth->update($slen); + + # mac = c + mlen; + # crypto_onetimeauth_poly1305_final(&poly1305_state, mac); + $mac = $auth->finish(); + $out .= $mac; + + # sodium_memzero(&poly1305_state, sizeof poly1305_state); + unset($auth); + + + # XOR_BUF(STATE_INONCE(state), mac, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + $st->xorNonce($mac); + + # sodium_increment(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES); + $st->incrementCounter(); + // Overwrite by reference: + $state = $st->toString(); + + /** @var bool $rekey */ + $rekey = ($tag & ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY) !== 0; + # if ((tag & crypto_secretstream_xchacha20poly1305_TAG_REKEY) != 0 || + # sodium_is_zero(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES)) { + # crypto_secretstream_xchacha20poly1305_rekey(state); + # } + if ($rekey || $st->needsRekey()) { + // DO REKEY + self::secretstream_xchacha20poly1305_rekey($state); + } + # if (outlen_p != NULL) { + # *outlen_p = crypto_secretstream_xchacha20poly1305_ABYTES + mlen; + # } + return $out; + } + + /** + * @param string $state + * @param string $cipher + * @param string $aad + * @return bool|array{0: string, 1: int} + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_pull(&$state, $cipher, $aad = '') + { + $st = ParagonIE_Sodium_Core32_SecretStream_State::fromString($state); + + $cipherlen = ParagonIE_Sodium_Core32_Util::strlen($cipher); + # mlen = inlen - crypto_secretstream_xchacha20poly1305_ABYTES; + $msglen = $cipherlen - ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_ABYTES; + $aadlen = ParagonIE_Sodium_Core32_Util::strlen($aad); + + # if (mlen > crypto_secretstream_xchacha20poly1305_MESSAGEBYTES_MAX) { + # sodium_misuse(); + # } + if ((($msglen + 63) >> 6) > 0xfffffffe) { + throw new SodiumException( + 'message cannot be larger than SODIUM_CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_MESSAGEBYTES_MAX bytes' + ); + } + + # crypto_stream_chacha20_ietf(block, sizeof block, state->nonce, state->k); + # crypto_onetimeauth_poly1305_init(&poly1305_state, block); + # sodium_memzero(block, sizeof block); + $auth = new ParagonIE_Sodium_Core32_Poly1305_State( + ParagonIE_Sodium_Core32_ChaCha20::ietfStream(32, $st->getCombinedNonce(), $st->getKey()) + ); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, ad, adlen); + $auth->update($aad); + + # crypto_onetimeauth_poly1305_update(&poly1305_state, _pad0, + # (0x10 - adlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - $aadlen) & 0xf))); + + + # memset(block, 0, sizeof block); + # block[0] = in[0]; + # crypto_stream_chacha20_ietf_xor_ic(block, block, sizeof block, + # state->nonce, 1U, state->k); + $block = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc( + $cipher[0] . str_repeat("\0", 63), + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core32_Util::store64_le(1) + ); + # tag = block[0]; + # block[0] = in[0]; + # crypto_onetimeauth_poly1305_update(&poly1305_state, block, sizeof block); + $tag = ParagonIE_Sodium_Core32_Util::chrToInt($block[0]); + $block[0] = $cipher[0]; + $auth->update($block); + + + # c = in + (sizeof tag); + # crypto_onetimeauth_poly1305_update(&poly1305_state, c, mlen); + $auth->update(ParagonIE_Sodium_Core32_Util::substr($cipher, 1, $msglen)); + + # crypto_onetimeauth_poly1305_update + # (&poly1305_state, _pad0, (0x10 - (sizeof block) + mlen) & 0xf); + $auth->update(str_repeat("\0", ((0x10 - 64 + $msglen) & 0xf))); + + # STORE64_LE(slen, (uint64_t) adlen); + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $slen = ParagonIE_Sodium_Core32_Util::store64_le($aadlen); + $auth->update($slen); + + # STORE64_LE(slen, (sizeof block) + mlen); + # crypto_onetimeauth_poly1305_update(&poly1305_state, slen, sizeof slen); + $slen = ParagonIE_Sodium_Core32_Util::store64_le(64 + $msglen); + $auth->update($slen); + + # crypto_onetimeauth_poly1305_final(&poly1305_state, mac); + # sodium_memzero(&poly1305_state, sizeof poly1305_state); + $mac = $auth->finish(); + + # stored_mac = c + mlen; + # if (sodium_memcmp(mac, stored_mac, sizeof mac) != 0) { + # sodium_memzero(mac, sizeof mac); + # return -1; + # } + + $stored = ParagonIE_Sodium_Core32_Util::substr($cipher, $msglen + 1, 16); + if (!ParagonIE_Sodium_Core32_Util::hashEquals($mac, $stored)) { + return false; + } + + # crypto_stream_chacha20_ietf_xor_ic(m, c, mlen, state->nonce, 2U, state->k); + $out = ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc( + ParagonIE_Sodium_Core32_Util::substr($cipher, 1, $msglen), + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core32_Util::store64_le(2) + ); + + # XOR_BUF(STATE_INONCE(state), mac, + # crypto_secretstream_xchacha20poly1305_INONCEBYTES); + $st->xorNonce($mac); + + # sodium_increment(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES); + $st->incrementCounter(); + + # if ((tag & crypto_secretstream_xchacha20poly1305_TAG_REKEY) != 0 || + # sodium_is_zero(STATE_COUNTER(state), + # crypto_secretstream_xchacha20poly1305_COUNTERBYTES)) { + # crypto_secretstream_xchacha20poly1305_rekey(state); + # } + + // Overwrite by reference: + $state = $st->toString(); + + /** @var bool $rekey */ + $rekey = ($tag & ParagonIE_Sodium_Compat::CRYPTO_SECRETSTREAM_XCHACHA20POLY1305_TAG_REKEY) !== 0; + if ($rekey || $st->needsRekey()) { + // DO REKEY + self::secretstream_xchacha20poly1305_rekey($state); + } + return array($out, $tag); + } + + /** + * @param string $state + * @return void + * @throws SodiumException + */ + public static function secretstream_xchacha20poly1305_rekey(&$state) + { + $st = ParagonIE_Sodium_Core32_SecretStream_State::fromString($state); + # unsigned char new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + + # crypto_secretstream_xchacha20poly1305_INONCEBYTES]; + # size_t i; + # for (i = 0U; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) { + # new_key_and_inonce[i] = state->k[i]; + # } + $new_key_and_inonce = $st->getKey(); + + # for (i = 0U; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) { + # new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i] = + # STATE_INONCE(state)[i]; + # } + $new_key_and_inonce .= ParagonIE_Sodium_Core32_Util::substR($st->getNonce(), 0, 8); + + # crypto_stream_chacha20_ietf_xor(new_key_and_inonce, new_key_and_inonce, + # sizeof new_key_and_inonce, + # state->nonce, state->k); + + $st->rekey(ParagonIE_Sodium_Core32_ChaCha20::ietfStreamXorIc( + $new_key_and_inonce, + $st->getCombinedNonce(), + $st->getKey(), + ParagonIE_Sodium_Core32_Util::store64_le(0) + )); + + # for (i = 0U; i < crypto_stream_chacha20_ietf_KEYBYTES; i++) { + # state->k[i] = new_key_and_inonce[i]; + # } + # for (i = 0U; i < crypto_secretstream_xchacha20poly1305_INONCEBYTES; i++) { + # STATE_INONCE(state)[i] = + # new_key_and_inonce[crypto_stream_chacha20_ietf_KEYBYTES + i]; + # } + # _crypto_secretstream_xchacha20poly1305_counter_reset(state); + $st->counterReset(); + + $state = $st->toString(); + } + + /** + * Detached Ed25519 signature. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $sk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sign_detached($message, $sk) + { + return ParagonIE_Sodium_Core32_Ed25519::sign_detached($message, $sk); + } + + /** + * Attached Ed25519 signature. (Returns a signed message.) + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $message + * @param string $sk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sign($message, $sk) + { + return ParagonIE_Sodium_Core32_Ed25519::sign($message, $sk); + } + + /** + * Opens a signed message. If valid, returns the message. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $signedMessage + * @param string $pk + * @return string + * @throws SodiumException + * @throws TypeError + */ + public static function sign_open($signedMessage, $pk) + { + return ParagonIE_Sodium_Core32_Ed25519::sign_open($signedMessage, $pk); + } + + /** + * Verify a detached signature of a given message and public key. + * + * @internal Do not use this directly. Use ParagonIE_Sodium_Compat. + * + * @param string $signature + * @param string $message + * @param string $pk + * @return bool + * @throws SodiumException + * @throws TypeError + */ + public static function sign_verify_detached($signature, $message, $pk) + { + return ParagonIE_Sodium_Core32_Ed25519::verify_detached($signature, $message, $pk); + } +} diff --git a/vendor/paragonie/sodium_compat/src/File.php b/vendor/paragonie/sodium_compat/src/File.php new file mode 100644 index 0000000..2b22171 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/File.php @@ -0,0 +1,1560 @@ +<?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;
+ }
+}
diff --git a/vendor/paragonie/sodium_compat/src/PHP52/SplFixedArray.php b/vendor/paragonie/sodium_compat/src/PHP52/SplFixedArray.php new file mode 100644 index 0000000..c333ad4 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/PHP52/SplFixedArray.php @@ -0,0 +1,189 @@ +<?php + +if (class_exists('SplFixedArray')) { + return; +} + +/** + * The SplFixedArray class provides the main functionalities of array. The + * main differences between a SplFixedArray and a normal PHP array is that + * the SplFixedArray is of fixed length and allows only integers within + * the range as indexes. The advantage is that it allows a faster array + * implementation. + */ +class SplFixedArray implements Iterator, ArrayAccess, Countable +{ + /** @var array<int, mixed> */ + private $internalArray = array(); + + /** @var int $size */ + private $size = 0; + + /** + * SplFixedArray constructor. + * @param int $size + */ + public function __construct($size = 0) + { + $this->size = $size; + $this->internalArray = array(); + } + + /** + * @return int + */ + public function count() + { + return count($this->internalArray); + } + + /** + * @return array + */ + public function toArray() + { + ksort($this->internalArray); + return (array) $this->internalArray; + } + + /** + * @param array $array + * @param bool $save_indexes + * @return SplFixedArray + * @psalm-suppress MixedAssignment + */ + public static function fromArray(array $array, $save_indexes = true) + { + $self = new SplFixedArray(count($array)); + if($save_indexes) { + foreach($array as $key => $value) { + $self[(int) $key] = $value; + } + } else { + $i = 0; + foreach (array_values($array) as $value) { + $self[$i] = $value; + $i++; + } + } + return $self; + } + + /** + * @return int + */ + public function getSize() + { + return $this->size; + } + + /** + * @param int $size + * @return bool + */ + public function setSize($size) + { + $this->size = $size; + return true; + } + + /** + * @param string|int $index + * @return bool + */ + public function offsetExists($index) + { + return array_key_exists((int) $index, $this->internalArray); + } + + /** + * @param string|int $index + * @return mixed + */ + public function offsetGet($index) + { + /** @psalm-suppress MixedReturnStatement */ + return $this->internalArray[(int) $index]; + } + + /** + * @param string|int $index + * @param mixed $newval + * @psalm-suppress MixedAssignment + */ + public function offsetSet($index, $newval) + { + $this->internalArray[(int) $index] = $newval; + } + + /** + * @param string|int $index + */ + public function offsetUnset($index) + { + unset($this->internalArray[(int) $index]); + } + + /** + * Rewind iterator back to the start + * @link https://php.net/manual/en/splfixedarray.rewind.php + * @return void + * @since 5.3.0 + */ + public function rewind() + { + reset($this->internalArray); + } + + /** + * Return current array entry + * @link https://php.net/manual/en/splfixedarray.current.php + * @return mixed The current element value. + * @since 5.3.0 + */ + public function current() + { + /** @psalm-suppress MixedReturnStatement */ + return current($this->internalArray); + } + + /** + * Return current array index + * @return int The current array index. + */ + public function key() + { + return key($this->internalArray); + } + + /** + * @return void + */ + public function next() + { + next($this->internalArray); + } + + /** + * Check whether the array contains more elements + * @link https://php.net/manual/en/splfixedarray.valid.php + * @return bool true if the array contains any more elements, false otherwise. + */ + public function valid() + { + if (empty($this->internalArray)) { + return false; + } + $result = next($this->internalArray) !== false; + prev($this->internalArray); + return $result; + } + + /** + * Do nothing. + */ + public function __wakeup() + { + // NOP + } +}
\ No newline at end of file diff --git a/vendor/paragonie/sodium_compat/src/SodiumException.php b/vendor/paragonie/sodium_compat/src/SodiumException.php new file mode 100644 index 0000000..a3176d7 --- /dev/null +++ b/vendor/paragonie/sodium_compat/src/SodiumException.php @@ -0,0 +1,11 @@ +<?php + +if (!class_exists('SodiumException', false)) { + /** + * Class SodiumException + */ + class SodiumException extends Exception + { + + } +} |