JEMBOT MAWOT Bypass Shell
<?php
/*
* The RandomLib library for securely generating random numbers and strings in PHP
*
* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
* @copyright 2011 The Authors
* @license http://www.opensource.org/licenses/mit-license.html MIT License
* @version Build @@version@@
*/
/**
* The URandom Random Number Source
*
* This uses the *nix /dev/urandom device to generate medium strength numbers
*
* PHP version 5.3
*
* @category PHPCryptLib
* @package Random
* @subpackage Source
*
* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
* @copyright 2011 The Authors
* @license http://www.opensource.org/licenses/mit-license.html MIT License
*
* @version Build @@version@@
*/
namespace RandomLib\Source;
use SecurityLib\Strength;
/**
* The URandom Random Number Source
*
* This uses the *nix /dev/urandom device to generate medium strength numbers
*
* @category PHPCryptLib
* @package Random
* @subpackage Source
*
* @author Anthony Ferrara <ircmaxell@ircmaxell.com>
* @codeCoverageIgnore
*/
class URandom extends \RandomLib\AbstractSource
{
/**
* @var string The file to read from
*/
protected static $file = '/dev/urandom';
/**
* Return an instance of Strength indicating the strength of the source
*
* @return \SecurityLib\Strength An instance of one of the strength classes
*/
public static function getStrength()
{
return new Strength(Strength::MEDIUM);
}
/**
* If the source is currently available.
* Reasons might be because the library is not installed
*
* @return bool
*/
public static function isSupported()
{
return @file_exists(static::$file);
}
/**
* Generate a random string of the specified size
*
* @param int $size The size of the requested random string
*
* @return string A string of the requested size
*/
public function generate($size)
{
if ($size == 0) {
return static::emptyValue($size);
}
$file = fopen(static::$file, 'rb');
if (!$file) {
return static::emptyValue($size);
}
if (function_exists('stream_set_read_buffer')) {
stream_set_read_buffer($file, 0);
}
$result = fread($file, $size);
fclose($file);
return $result;
}
}
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