simplify

1 files changed, 0 insertions, 130 deletions

diff --git a/library/phpsec/Crypt/Random.php b/library/phpsec/Crypt/Random.php
deleted file mode 100644
index a91c4d3c5..000000000
--- a/library/phpsec/Crypt/Random.php
+++ /dev/null
@@ -1,130 +0,0 @@
-<?php

-/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

-

-/**

- * Random Number Generator

- *

- * PHP versions 4 and 5

- *

- * Here's a short example of how to use this library:

- * <code>

- * <?php

- *    include('Crypt/Random.php');

- *

- *    echo crypt_random();

- * ?>

- * </code>

- *

- * LICENSE: This library is free software; you can redistribute it and/or

- * modify it under the terms of the GNU Lesser General Public

- * License as published by the Free Software Foundation; either

- * version 2.1 of the License, or (at your option) any later version.

- *

- * This library is distributed in the hope that it will be useful,

- * but WITHOUT ANY WARRANTY; without even the implied warranty of

- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

- * Lesser General Public License for more details.

- *

- * You should have received a copy of the GNU Lesser General Public

- * License along with this library; if not, write to the Free Software

- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,

- * MA  02111-1307  USA

- *

- * @category   Crypt

- * @package    Crypt_Random

- * @author     Jim Wigginton <terrafrost@php.net>

- * @copyright  MMVII Jim Wigginton

- * @license    http://www.gnu.org/licenses/lgpl.txt

- * @version    $Id: Random.php,v 1.9 2010/04/24 06:40:48 terrafrost Exp $

- * @link       http://phpseclib.sourceforge.net

- */

-

-/**

- * Generate a random value.

- *

- * On 32-bit machines, the largest distance that can exist between $min and $max is 2**31.

- * If $min and $max are farther apart than that then the last ($max - range) numbers.

- *

- * Depending on how this is being used, it may be worth while to write a replacement.  For example,

- * a PHP-based web app that stores its data in an SQL database can collect more entropy than this function

- * can.

- *

- * @param optional Integer $min

- * @param optional Integer $max

- * @return Integer

- * @access public

- */

-function crypt_random($min = 0, $max = 0x7FFFFFFF)

-{

-    if ($min == $max) {

-        return $min;

-    }

-

-    // see http://en.wikipedia.org/wiki//dev/random

-    // if open_basedir is enabled file_exists() will ouput an "open_basedir restriction in effect" warning,

-    // so we suppress it.

-    if (@file_exists('/dev/urandom')) {

-        static $fp;

-        if (!$fp) {

-            $fp = fopen('/dev/urandom', 'rb');

-        }

-        extract(unpack('Nrandom', fread($fp, 4)));

-

-        // say $min = 0 and $max = 3.  if we didn't do abs() then we could have stuff like this:

-        // -4 % 3 + 0 = -1, even though -1 < $min

-        return abs($random) % ($max - $min) + $min;

-    }

-

-    /* Prior to PHP 4.2.0, mt_srand() had to be called before mt_rand() could be called.

-       Prior to PHP 5.2.6, mt_rand()'s automatic seeding was subpar, as elaborated here:

-

-       http://www.suspekt.org/2008/08/17/mt_srand-and-not-so-random-numbers/

-

-       The seeding routine is pretty much ripped from PHP's own internal GENERATE_SEED() macro:

-

-       http://svn.php.net/viewvc/php/php-src/branches/PHP_5_3_2/ext/standard/php_rand.h?view=markup */

-    if (version_compare(PHP_VERSION, '5.2.5', '<=')) { 

-        static $seeded;

-        if (!isset($seeded)) {

-            $seeded = true;

-            mt_srand(fmod(time() * getmypid(), 0x7FFFFFFF) ^ fmod(1000000 * lcg_value(), 0x7FFFFFFF));

-        }

-    }

-

-    static $crypto;

-

-    // The CSPRNG's Yarrow and Fortuna periodically reseed.  This function can be reseeded by hitting F5

-    // in the browser and reloading the page.

-

-    if (!isset($crypto)) {

-        $key = $iv = '';

-        for ($i = 0; $i < 8; $i++) {

-            $key.= pack('n', mt_rand(0, 0xFFFF));

-            $iv .= pack('n', mt_rand(0, 0xFFFF));

-        }

-        switch (true) {

-            case class_exists('Crypt_AES'):

-                $crypto = new Crypt_AES(CRYPT_AES_MODE_CTR);

-                break;

-            case class_exists('Crypt_TripleDES'):

-                $crypto = new Crypt_TripleDES(CRYPT_DES_MODE_CTR);

-                break;

-            case class_exists('Crypt_DES'):

-                $crypto = new Crypt_DES(CRYPT_DES_MODE_CTR);

-                break;

-            case class_exists('Crypt_RC4'):

-                $crypto = new Crypt_RC4();

-                break;

-            default:

-                extract(unpack('Nrandom', pack('H*', sha1(mt_rand(0, 0x7FFFFFFF)))));

-                return abs($random) % ($max - $min) + $min;

-        }

-        $crypto->setKey($key);

-        $crypto->setIV($iv);

-        $crypto->enableContinuousBuffer();

-    }

-

-    extract(unpack('Nrandom', $crypto->encrypt("\0\0\0\0")));

-    return abs($random) % ($max - $min) + $min;

-}

-?>
\ No newline at end of file