Jacek Pyziak
778ee26fe4
- Created CHANGELOG.md to maintain version history. - Added README.md with usage instructions for the trigger_deprecation() function. - Initialized composer.json for the Symfony Deprecation Contracts library, specifying dependencies and autoloading.
86 lines
2.1 KiB
PHP
86 lines
2.1 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 PHP7 Random Number Source
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*
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* This uses the inbuilt PHP7 Random Bytes function
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*
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* PHP version 5.3
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*
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* @category PHPCryptLib
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* @package Random
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* @subpackage Source
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*
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* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
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* @author Paragon Initiative Enterprises <security@paragonie.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 PShowSsoScoped\RandomLib\Source;
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use PShowSsoScoped\SecurityLib\Strength;
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/**
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* The PHP7 Random Number Source
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*
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* This uses the php7 secure generator to generate high strength numbers
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*
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* @category PHPCryptLib
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* @package Random
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* @subpackage Source
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*
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* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
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* @author Paragon Initiative Enterprises <security@paragonie.com>
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*/
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class RandomBytes extends \PShowSsoScoped\RandomLib\AbstractSource
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{
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/**
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* If the source is currently available.
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* Reasons might be because the library is not installed
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*
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* @return bool
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*/
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public static function isSupported()
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{
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return \is_callable('random_bytes');
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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 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::HIGH);
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}
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/**
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* Generate a random string of the specified size
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*
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* @param int $size The size of the requested random string
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*
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* @return string A string of the requested size
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*/
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public function generate($size)
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{
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if (!self::isSupported()) {
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return \str_repeat(chr(0), $size);
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}
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return \random_bytes($size);
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}
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}
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