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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2017 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace Jose\Component\Core\Util\Ecc; |
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/** |
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* Class Math. |
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*/ |
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final class Math |
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{ |
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/** |
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* @param \GMP $first |
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* @param \GMP $other |
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* |
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* @return int |
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*/ |
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public static function cmp(\GMP $first, \GMP $other): int |
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{ |
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return gmp_cmp($first, $other); |
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} |
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/** |
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* @param \GMP $first |
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* @param \GMP $other |
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* |
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* @return bool |
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*/ |
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public static function equals(\GMP $first, \GMP $other): bool |
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{ |
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return gmp_cmp($first, $other) === 0; |
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} |
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/** |
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* @param \GMP $number |
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* @param \GMP $modulus |
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* |
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* @return \GMP |
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*/ |
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public static function mod(\GMP $number, \GMP $modulus): \GMP |
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{ |
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return gmp_mod($number, $modulus); |
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} |
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/** |
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* @param \GMP $augend |
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* @param \GMP $addend |
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* |
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* @return \GMP |
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*/ |
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public static function add(\GMP $augend, \GMP $addend): \GMP |
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{ |
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return gmp_add($augend, $addend); |
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} |
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/** |
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* @param \GMP $minuend |
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* @param \GMP $subtrahend |
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* |
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* @return \GMP |
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*/ |
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public static function sub(\GMP $minuend, \GMP $subtrahend): \GMP |
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{ |
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return gmp_sub($minuend, $subtrahend); |
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} |
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/** |
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* @param \GMP $multiplier |
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* @param \GMP $multiplicand |
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* |
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* @return \GMP |
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*/ |
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public static function mul(\GMP $multiplier, \GMP $multiplicand): \GMP |
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{ |
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return gmp_mul($multiplier, $multiplicand); |
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} |
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/** |
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* @param \GMP $base |
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* @param int $exponent |
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* |
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* @return \GMP |
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*/ |
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public static function pow(\GMP $base, int $exponent): \GMP |
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{ |
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return gmp_pow($base, $exponent); |
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} |
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/** |
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* @param \GMP $first |
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* @param \GMP $other |
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* |
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* @return \GMP |
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*/ |
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public static function bitwiseAnd(\GMP $first, \GMP $other): \GMP |
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{ |
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return gmp_and($first, $other); |
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} |
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/** |
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* @param \GMP $first |
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* @param \GMP $other |
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* |
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* @return \GMP |
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*/ |
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public static function bitwiseXor(\GMP $first, \GMP $other): \GMP |
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{ |
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return gmp_xor($first, $other); |
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} |
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/** |
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* @param \GMP $value |
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* |
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* @return string |
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*/ |
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public static function toString(\GMP $value): string |
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{ |
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return gmp_strval($value); |
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} |
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/** |
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* @param \GMP $a |
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* @param \GMP $m |
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* |
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* @return \GMP |
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*/ |
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public static function inverseMod(\GMP $a, \GMP $m): \GMP |
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{ |
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return gmp_invert($a, $m); |
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} |
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/** |
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* @param string $number |
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* @param int $from |
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* @param int $to |
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* |
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* @return string |
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*/ |
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public static function baseConvert(string $number, int $from, int $to): string |
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{ |
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return gmp_strval(gmp_init($number, $from), $to); |
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} |
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/** |
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* @param \GMP $number |
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* @param int $positions |
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* |
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* @return \GMP |
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*/ |
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public static function rightShift(\GMP $number, int $positions): \GMP |
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{ |
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return gmp_div($number, gmp_pow(gmp_init(2, 10), $positions)); |
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} |
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/** |
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* @param string $s |
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* |
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* @return \GMP |
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*/ |
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public static function stringToInt(string $s): \GMP |
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{ |
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$result = gmp_init(0, 10); |
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$sLen = mb_strlen($s, '8bit'); |
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for ($c = 0; $c < $sLen; ++$c) { |
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$result = gmp_add(gmp_mul(256, $result), gmp_init(ord($s[$c]), 10)); |
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} |
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return $result; |
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} |
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} |
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web-token /
jwt-framework
