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author | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
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committer | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
commit | 19985dbb8c0aa66dc4bf7905abc1148de909097d (patch) | |
tree | 2cd5a5d20d7e80fc2a51adf60d838d8a2c40999e /vendor/web-token/jwt-util-ecc/ModularArithmetic.php | |
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Diffstat (limited to 'vendor/web-token/jwt-util-ecc/ModularArithmetic.php')
-rw-r--r-- | vendor/web-token/jwt-util-ecc/ModularArithmetic.php | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/vendor/web-token/jwt-util-ecc/ModularArithmetic.php b/vendor/web-token/jwt-util-ecc/ModularArithmetic.php new file mode 100644 index 0000000..29be145 --- /dev/null +++ b/vendor/web-token/jwt-util-ecc/ModularArithmetic.php @@ -0,0 +1,35 @@ +<?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\Ecc; + +/** + * @internal + */ +class ModularArithmetic +{ + public static function sub(\GMP $minuend, \GMP $subtrahend, \GMP $modulus): \GMP + { + return Math::mod(Math::sub($minuend, $subtrahend), $modulus); + } + + public static function mul(\GMP $multiplier, \GMP $muliplicand, \GMP $modulus): \GMP + { + return Math::mod(Math::mul($multiplier, $muliplicand), $modulus); + } + + public static function div(\GMP $dividend, \GMP $divisor, \GMP $modulus): \GMP + { + return self::mul($dividend, Math::inverseMod($divisor, $modulus), $modulus); + } +} |