diff options
Diffstat (limited to 'models/Auth.old/OpenID/CryptUtil.php')
| -rw-r--r-- | models/Auth.old/OpenID/CryptUtil.php | 113 | 
1 files changed, 0 insertions, 113 deletions
| diff --git a/models/Auth.old/OpenID/CryptUtil.php b/models/Auth.old/OpenID/CryptUtil.php deleted file mode 100644 index 70351dcee..000000000 --- a/models/Auth.old/OpenID/CryptUtil.php +++ /dev/null @@ -1,113 +0,0 @@ -<?php - -/** - * CryptUtil: A suite of wrapper utility functions for the OpenID - * library. - * - * PHP versions 4 and 5 - * - * LICENSE: See the COPYING file included in this distribution. - * - * @access private - * @package OpenID - * @author JanRain, Inc. <openid@janrain.com> - * @copyright 2005 Janrain, Inc. - * @license http://www.gnu.org/copyleft/lesser.html LGPL - */ - -if (!defined('Auth_OpenID_RAND_SOURCE')) { -    /** -     * The filename for a source of random bytes. Define this yourself -     * if you have a different source of randomness. -     */
 -	
 -	// good version -    define('Auth_OpenID_RAND_SOURCE', '/dev/urandom');
 -    // use this one for broken systems (eg. Windows)
 -    //define('Auth_OpenID_RAND_SOURCE', null); -} - -class Auth_OpenID_CryptUtil { -    /** -     * Get the specified number of random bytes. -     * -     * Attempts to use a cryptographically secure (not predictable) -     * source of randomness if available. If there is no high-entropy -     * randomness source available, it will fail. As a last resort, -     * for non-critical systems, define -     * <code>Auth_OpenID_RAND_SOURCE</code> as <code>null</code>, and -     * the code will fall back on a pseudo-random number generator. -     * -     * @param int $num_bytes The length of the return value -     * @return string $bytes random bytes -     */ -    function getBytes($num_bytes) -    { -        static $f = null; -        $bytes = ''; -        if ($f === null) { -            if (Auth_OpenID_RAND_SOURCE === null) { -                $f = false; -            } else { -                $f = @fopen(Auth_OpenID_RAND_SOURCE, "r"); -                if ($f === false) { -                    $msg = 'Define Auth_OpenID_RAND_SOURCE as null to ' . -                        ' continue with an insecure random number generator.'; -                    trigger_error($msg, E_USER_ERROR); -                } -            } -        } -        if ($f === false) { -            // pseudorandom used -            $bytes = ''; -            for ($i = 0; $i < $num_bytes; $i += 4) { -                $bytes .= pack('L', mt_rand()); -            } -            $bytes = substr($bytes, 0, $num_bytes); -        } else { -            $bytes = fread($f, $num_bytes); -        } -        return $bytes; -    } - -    /** -     * Produce a string of length random bytes, chosen from chrs.  If -     * $chrs is null, the resulting string may contain any characters. -     * -     * @param integer $length The length of the resulting -     * randomly-generated string -     * @param string $chrs A string of characters from which to choose -     * to build the new string -     * @return string $result A string of randomly-chosen characters -     * from $chrs -     */ -    function randomString($length, $population = null) -    { -        if ($population === null) { -            return Auth_OpenID_CryptUtil::getBytes($length); -        } - -        $popsize = strlen($population); - -        if ($popsize > 256) { -            $msg = 'More than 256 characters supplied to ' . __FUNCTION__; -            trigger_error($msg, E_USER_ERROR); -        } - -        $duplicate = 256 % $popsize; - -        $str = ""; -        for ($i = 0; $i < $length; $i++) { -            do { -                $n = ord(Auth_OpenID_CryptUtil::getBytes(1)); -            } while ($n < $duplicate); - -            $n %= $popsize; -            $str .= $population[$n]; -        } - -        return $str; -    } -} - -?>
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