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-rw-r--r--vendor/fgrosse/phpasn1/lib/ASN1/Universal/Integer.php260
1 files changed, 130 insertions, 130 deletions
diff --git a/vendor/fgrosse/phpasn1/lib/ASN1/Universal/Integer.php b/vendor/fgrosse/phpasn1/lib/ASN1/Universal/Integer.php
index fe3806b..4b12cd4 100644
--- a/vendor/fgrosse/phpasn1/lib/ASN1/Universal/Integer.php
+++ b/vendor/fgrosse/phpasn1/lib/ASN1/Universal/Integer.php
@@ -1,130 +1,130 @@
-<?php
-/*
- * This file is part of the PHPASN1 library.
- *
- * Copyright © Friedrich Große <friedrich.grosse@gmail.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace FG\ASN1\Universal;
-
-use Exception;
-use FG\Utility\BigInteger;
-use FG\ASN1\Exception\ParserException;
-use FG\ASN1\ASNObject;
-use FG\ASN1\Parsable;
-use FG\ASN1\Identifier;
-
-class Integer extends ASNObject implements Parsable
-{
- /** @var int */
- private $value;
-
- /**
- * @param int $value
- *
- * @throws Exception if the value is not numeric
- */
- public function __construct($value)
- {
- if (is_numeric($value) == false) {
- throw new Exception("Invalid VALUE [{$value}] for ASN1_INTEGER");
- }
- $this->value = $value;
- }
-
- public function getType()
- {
- return Identifier::INTEGER;
- }
-
- public function getContent()
- {
- return $this->value;
- }
-
- protected function calculateContentLength()
- {
- return strlen($this->getEncodedValue());
- }
-
- protected function getEncodedValue()
- {
- $value = BigInteger::create($this->value, 10);
- $negative = $value->compare(0) < 0;
- if ($negative) {
- $value = $value->absoluteValue();
- $limit = 0x80;
- } else {
- $limit = 0x7f;
- }
-
- $mod = 0xff+1;
- $values = [];
- while($value->compare($limit) > 0) {
- $values[] = $value->modulus($mod)->toInteger();
- $value = $value->shiftRight(8);
- }
-
- $values[] = $value->modulus($mod)->toInteger();
- $numValues = count($values);
-
- if ($negative) {
- for ($i = 0; $i < $numValues; $i++) {
- $values[$i] = 0xff - $values[$i];
- }
- for ($i = 0; $i < $numValues; $i++) {
- $values[$i] += 1;
- if ($values[$i] <= 0xff) {
- break;
- }
- assert($i != $numValues - 1);
- $values[$i] = 0;
- }
- if ($values[$numValues - 1] == 0x7f) {
- $values[] = 0xff;
- }
- }
- $values = array_reverse($values);
- $r = pack("C*", ...$values);
- return $r;
- }
-
- private static function ensureMinimalEncoding($binaryData, $offsetIndex)
- {
- // All the first nine bits cannot equal 0 or 1, which would
- // be non-minimal encoding for positive and negative integers respectively
- if ((ord($binaryData[$offsetIndex]) == 0x00 && (ord($binaryData[$offsetIndex+1]) & 0x80) == 0) ||
- (ord($binaryData[$offsetIndex]) == 0xff && (ord($binaryData[$offsetIndex+1]) & 0x80) == 0x80)) {
- throw new ParserException("Integer not minimally encoded", $offsetIndex);
- }
- }
-
- public static function fromBinary(&$binaryData, &$offsetIndex = 0)
- {
- $parsedObject = new static(0);
- self::parseIdentifier($binaryData[$offsetIndex], $parsedObject->getType(), $offsetIndex++);
- $contentLength = self::parseContentLength($binaryData, $offsetIndex, 1);
-
- if ($contentLength > 1) {
- self::ensureMinimalEncoding($binaryData, $offsetIndex);
- }
- $isNegative = (ord($binaryData[$offsetIndex]) & 0x80) != 0x00;
- $number = BigInteger::create(ord($binaryData[$offsetIndex++]) & 0x7F);
-
- for ($i = 0; $i < $contentLength - 1; $i++) {
- $number = $number->multiply(0x100)->add(ord($binaryData[$offsetIndex++]));
- }
-
- if ($isNegative) {
- $number = $number->subtract(BigInteger::create(2)->toPower(8 * $contentLength - 1));
- }
-
- $parsedObject = new static((string)$number);
- $parsedObject->setContentLength($contentLength);
-
- return $parsedObject;
- }
-}
+<?php
+/*
+ * This file is part of the PHPASN1 library.
+ *
+ * Copyright © Friedrich Große <friedrich.grosse@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace FG\ASN1\Universal;
+
+use Exception;
+use FG\Utility\BigInteger;
+use FG\ASN1\Exception\ParserException;
+use FG\ASN1\ASNObject;
+use FG\ASN1\Parsable;
+use FG\ASN1\Identifier;
+
+class Integer extends ASNObject implements Parsable
+{
+ /** @var int */
+ private $value;
+
+ /**
+ * @param int $value
+ *
+ * @throws Exception if the value is not numeric
+ */
+ public function __construct($value)
+ {
+ if (is_numeric($value) == false) {
+ throw new Exception("Invalid VALUE [{$value}] for ASN1_INTEGER");
+ }
+ $this->value = $value;
+ }
+
+ public function getType()
+ {
+ return Identifier::INTEGER;
+ }
+
+ public function getContent()
+ {
+ return $this->value;
+ }
+
+ protected function calculateContentLength()
+ {
+ return strlen($this->getEncodedValue());
+ }
+
+ protected function getEncodedValue()
+ {
+ $value = BigInteger::create($this->value, 10);
+ $negative = $value->compare(0) < 0;
+ if ($negative) {
+ $value = $value->absoluteValue();
+ $limit = 0x80;
+ } else {
+ $limit = 0x7f;
+ }
+
+ $mod = 0xff+1;
+ $values = [];
+ while($value->compare($limit) > 0) {
+ $values[] = $value->modulus($mod)->toInteger();
+ $value = $value->shiftRight(8);
+ }
+
+ $values[] = $value->modulus($mod)->toInteger();
+ $numValues = count($values);
+
+ if ($negative) {
+ for ($i = 0; $i < $numValues; $i++) {
+ $values[$i] = 0xff - $values[$i];
+ }
+ for ($i = 0; $i < $numValues; $i++) {
+ $values[$i] += 1;
+ if ($values[$i] <= 0xff) {
+ break;
+ }
+ assert($i != $numValues - 1);
+ $values[$i] = 0;
+ }
+ if ($values[$numValues - 1] == 0x7f) {
+ $values[] = 0xff;
+ }
+ }
+ $values = array_reverse($values);
+ $r = pack("C*", ...$values);
+ return $r;
+ }
+
+ private static function ensureMinimalEncoding($binaryData, $offsetIndex)
+ {
+ // All the first nine bits cannot equal 0 or 1, which would
+ // be non-minimal encoding for positive and negative integers respectively
+ if ((ord($binaryData[$offsetIndex]) == 0x00 && (ord($binaryData[$offsetIndex+1]) & 0x80) == 0) ||
+ (ord($binaryData[$offsetIndex]) == 0xff && (ord($binaryData[$offsetIndex+1]) & 0x80) == 0x80)) {
+ throw new ParserException("Integer not minimally encoded", $offsetIndex);
+ }
+ }
+
+ public static function fromBinary(&$binaryData, &$offsetIndex = 0)
+ {
+ $parsedObject = new static(0);
+ self::parseIdentifier($binaryData[$offsetIndex], $parsedObject->getType(), $offsetIndex++);
+ $contentLength = self::parseContentLength($binaryData, $offsetIndex, 1);
+
+ if ($contentLength > 1) {
+ self::ensureMinimalEncoding($binaryData, $offsetIndex);
+ }
+ $isNegative = (ord($binaryData[$offsetIndex]) & 0x80) != 0x00;
+ $number = BigInteger::create(ord($binaryData[$offsetIndex++]) & 0x7F);
+
+ for ($i = 0; $i < $contentLength - 1; $i++) {
+ $number = $number->multiply(0x100)->add(ord($binaryData[$offsetIndex++]));
+ }
+
+ if ($isNegative) {
+ $number = $number->subtract(BigInteger::create(2)->toPower(8 * $contentLength - 1));
+ }
+
+ $parsedObject = new static((string)$number);
+ $parsedObject->setContentLength($contentLength);
+
+ return $parsedObject;
+ }
+}