61 lines
1.3 KiB
PHP
61 lines
1.3 KiB
PHP
<?php
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/**
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* Raw Signature Handler
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*
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* PHP version 5
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*
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* Handles signatures as arrays
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*
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* @author Jim Wigginton <terrafrost@php.net>
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* @copyright 2016 Jim Wigginton
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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* @link http://phpseclib.sourceforge.net
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*/
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namespace phpseclib3\Crypt\Common\Formats\Signature;
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use phpseclib3\Math\BigInteger;
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/**
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* Raw Signature Handler
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*
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* @author Jim Wigginton <terrafrost@php.net>
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*/
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abstract class Raw
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{
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/**
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* Loads a signature
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*
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* @param array $sig
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* @return array|bool
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*/
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public static function load($sig)
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{
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switch (true) {
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case !is_array($sig):
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case !isset($sig['r']) || !isset($sig['s']):
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case !$sig['r'] instanceof BigInteger:
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case !$sig['s'] instanceof BigInteger:
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return false;
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}
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return [
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'r' => $sig['r'],
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's' => $sig['s']
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];
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}
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/**
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* Returns a signature in the appropriate format
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*
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* @param \phpseclib3\Math\BigInteger $r
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* @param \phpseclib3\Math\BigInteger $s
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* @return string
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*/
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public static function save(BigInteger $r, BigInteger $s)
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{
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return compact('r', 's');
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}
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}
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