Xes
73154ae174
Fuente: https://github.com/chamilo/chamilo-lms/releases/download/v1.11.40/chamilo-1.11.40.zip sha256: 1cf4bf2cc7bae1ef1a1eff643235db1d552f78ddf4b6dd1e2d2dac9868679439 Snapshot independiente (rama huerfana); diffable vs 1.11.38. vendor incluido.
127 lines
3.0 KiB
PHP
127 lines
3.0 KiB
PHP
<?php
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/*
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* The RandomLib library for securely generating random numbers and strings in PHP
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*
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* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
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* @copyright 2011 The Authors
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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* @version Build @@version@@
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*/
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/**
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* The Hash medium strength mixer class
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*
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* This class implements a mixer based upon the recommendations in RFC 4086
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* section 5.2
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*
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* PHP version 5.3
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*
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* @see http://tools.ietf.org/html/rfc4086#section-5.2
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*
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* @category PHPCryptLib
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* @package Random
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* @subpackage Mixer
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*
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* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
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* @copyright 2011 The Authors
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* @license http://www.opensource.org/licenses/mit-license.html MIT License
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*
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* @version Build @@version@@
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*/
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namespace RandomLib\Mixer;
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use SecurityLib\Strength;
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use SecurityLib\Util;
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/**
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* The Hash medium strength mixer class
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*
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* This class implements a mixer based upon the recommendations in RFC 4086
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* section 5.2
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*
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* @see http://tools.ietf.org/html/rfc4086#section-5.2
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*
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* @category PHPCryptLib
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* @package Random
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* @subpackage Mixer
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*
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* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
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*/
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class Hash extends \RandomLib\AbstractMixer
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{
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/**
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* @var string The hash instance to use
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*/
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protected $hash = null;
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/**
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* Build the hash mixer
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*
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* @param string $hash The hash instance to use (defaults to sha512)
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*
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* @return void
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*/
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public function __construct($hash = 'sha512')
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{
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$this->hash = $hash;
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}
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/**
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* Return an instance of Strength indicating the strength of the source
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*
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* @return \SecurityLib\Strength An instance of one of the strength classes
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*/
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public static function getStrength()
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{
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return new Strength(Strength::MEDIUM);
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}
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/**
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* Test to see if the mixer is available
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*
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* @return bool If the mixer is available on the system
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*/
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public static function test()
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{
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return true;
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}
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/**
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* Get the block size (the size of the individual blocks used for the mixing)
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*
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* @return int The block size
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*/
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protected function getPartSize()
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{
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return Util::safeStrlen(hash($this->hash, '', true));
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}
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/**
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* Mix 2 parts together using one method
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*
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* @param string $part1 The first part to mix
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* @param string $part2 The second part to mix
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*
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* @return string The mixed data
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*/
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protected function mixParts1($part1, $part2)
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{
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return hash_hmac($this->hash, $part1, $part2, true);
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}
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/**
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* Mix 2 parts together using another different method
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*
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* @param string $part1 The first part to mix
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* @param string $part2 The second part to mix
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*
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* @return string The mixed data
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*/
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protected function mixParts2($part1, $part2)
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{
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return hash_hmac($this->hash, $part2, $part1, true);
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}
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}
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