diff options
Diffstat (limited to 'vendor/web-token/jwt-core/Util/ECSignature.php')
| -rw-r--r-- | vendor/web-token/jwt-core/Util/ECSignature.php | 186 |
1 files changed, 93 insertions, 93 deletions
diff --git a/vendor/web-token/jwt-core/Util/ECSignature.php b/vendor/web-token/jwt-core/Util/ECSignature.php index 5bfa5b0..14cb15d 100644 --- a/vendor/web-token/jwt-core/Util/ECSignature.php +++ b/vendor/web-token/jwt-core/Util/ECSignature.php @@ -1,93 +1,93 @@ -<?php - -declare(strict_types=1); - -/* - * The MIT License (MIT) - * - * Copyright (c) 2014-2018 Spomky-Labs - * - * This software may be modified and distributed under the terms - * of the MIT license. See the LICENSE file for details. - */ - -namespace Jose\Component\Core\Util; - -/** - * @internal - */ -class ECSignature -{ - public static function toDER(string $signature, int $partLength): string - { - $signature = \unpack('H*', $signature)[1]; - if (\mb_strlen($signature, '8bit') !== 2 * $partLength) { - throw new \InvalidArgumentException('Invalid length.'); - } - $R = \mb_substr($signature, 0, $partLength, '8bit'); - $S = \mb_substr($signature, $partLength, null, '8bit'); - - $R = self::preparePositiveInteger($R); - $Rl = \mb_strlen($R, '8bit') / 2; - $S = self::preparePositiveInteger($S); - $Sl = \mb_strlen($S, '8bit') / 2; - $der = \pack('H*', - '30'.($Rl + $Sl + 4 > 128 ? '81' : '').\dechex($Rl + $Sl + 4) - .'02'.\dechex($Rl).$R - .'02'.\dechex($Sl).$S - ); - - return $der; - } - - public static function fromDER(string $der, int $partLength): string - { - $hex = \unpack('H*', $der)[1]; - if ('30' !== \mb_substr($hex, 0, 2, '8bit')) { // SEQUENCE - throw new \RuntimeException(); - } - if ('81' === \mb_substr($hex, 2, 2, '8bit')) { // LENGTH > 128 - $hex = \mb_substr($hex, 6, null, '8bit'); - } else { - $hex = \mb_substr($hex, 4, null, '8bit'); - } - if ('02' !== \mb_substr($hex, 0, 2, '8bit')) { // INTEGER - throw new \RuntimeException(); - } - - $Rl = \hexdec(\mb_substr($hex, 2, 2, '8bit')); - $R = self::retrievePositiveInteger(\mb_substr($hex, 4, $Rl * 2, '8bit')); - $R = \str_pad($R, $partLength, '0', STR_PAD_LEFT); - - $hex = \mb_substr($hex, 4 + $Rl * 2, null, '8bit'); - if ('02' !== \mb_substr($hex, 0, 2, '8bit')) { // INTEGER - throw new \RuntimeException(); - } - $Sl = \hexdec(\mb_substr($hex, 2, 2, '8bit')); - $S = self::retrievePositiveInteger(\mb_substr($hex, 4, $Sl * 2, '8bit')); - $S = \str_pad($S, $partLength, '0', STR_PAD_LEFT); - - return \pack('H*', $R.$S); - } - - private static function preparePositiveInteger(string $data): string - { - if (\mb_substr($data, 0, 2, '8bit') > '7f') { - return '00'.$data; - } - while ('00' === \mb_substr($data, 0, 2, '8bit') && \mb_substr($data, 2, 2, '8bit') <= '7f') { - $data = \mb_substr($data, 2, null, '8bit'); - } - - return $data; - } - - private static function retrievePositiveInteger(string $data): string - { - while ('00' === \mb_substr($data, 0, 2, '8bit') && \mb_substr($data, 2, 2, '8bit') > '7f') { - $data = \mb_substr($data, 2, null, '8bit'); - } - - return $data; - } -} +<?php
+
+declare(strict_types=1);
+
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014-2018 Spomky-Labs
+ *
+ * This software may be modified and distributed under the terms
+ * of the MIT license. See the LICENSE file for details.
+ */
+
+namespace Jose\Component\Core\Util;
+
+/**
+ * @internal
+ */
+class ECSignature
+{
+ public static function toDER(string $signature, int $partLength): string
+ {
+ $signature = \unpack('H*', $signature)[1];
+ if (\mb_strlen($signature, '8bit') !== 2 * $partLength) {
+ throw new \InvalidArgumentException('Invalid length.');
+ }
+ $R = \mb_substr($signature, 0, $partLength, '8bit');
+ $S = \mb_substr($signature, $partLength, null, '8bit');
+
+ $R = self::preparePositiveInteger($R);
+ $Rl = \mb_strlen($R, '8bit') / 2;
+ $S = self::preparePositiveInteger($S);
+ $Sl = \mb_strlen($S, '8bit') / 2;
+ $der = \pack('H*',
+ '30'.($Rl + $Sl + 4 > 128 ? '81' : '').\dechex($Rl + $Sl + 4)
+ .'02'.\dechex($Rl).$R
+ .'02'.\dechex($Sl).$S
+ );
+
+ return $der;
+ }
+
+ public static function fromDER(string $der, int $partLength): string
+ {
+ $hex = \unpack('H*', $der)[1];
+ if ('30' !== \mb_substr($hex, 0, 2, '8bit')) { // SEQUENCE
+ throw new \RuntimeException();
+ }
+ if ('81' === \mb_substr($hex, 2, 2, '8bit')) { // LENGTH > 128
+ $hex = \mb_substr($hex, 6, null, '8bit');
+ } else {
+ $hex = \mb_substr($hex, 4, null, '8bit');
+ }
+ if ('02' !== \mb_substr($hex, 0, 2, '8bit')) { // INTEGER
+ throw new \RuntimeException();
+ }
+
+ $Rl = \hexdec(\mb_substr($hex, 2, 2, '8bit'));
+ $R = self::retrievePositiveInteger(\mb_substr($hex, 4, $Rl * 2, '8bit'));
+ $R = \str_pad($R, $partLength, '0', STR_PAD_LEFT);
+
+ $hex = \mb_substr($hex, 4 + $Rl * 2, null, '8bit');
+ if ('02' !== \mb_substr($hex, 0, 2, '8bit')) { // INTEGER
+ throw new \RuntimeException();
+ }
+ $Sl = \hexdec(\mb_substr($hex, 2, 2, '8bit'));
+ $S = self::retrievePositiveInteger(\mb_substr($hex, 4, $Sl * 2, '8bit'));
+ $S = \str_pad($S, $partLength, '0', STR_PAD_LEFT);
+
+ return \pack('H*', $R.$S);
+ }
+
+ private static function preparePositiveInteger(string $data): string
+ {
+ if (\mb_substr($data, 0, 2, '8bit') > '7f') {
+ return '00'.$data;
+ }
+ while ('00' === \mb_substr($data, 0, 2, '8bit') && \mb_substr($data, 2, 2, '8bit') <= '7f') {
+ $data = \mb_substr($data, 2, null, '8bit');
+ }
+
+ return $data;
+ }
+
+ private static function retrievePositiveInteger(string $data): string
+ {
+ while ('00' === \mb_substr($data, 0, 2, '8bit') && \mb_substr($data, 2, 2, '8bit') > '7f') {
+ $data = \mb_substr($data, 2, null, '8bit');
+ }
+
+ return $data;
+ }
+}
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