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<?php
/**
* This file is part of the tiqr project.
*
* The tiqr project aims to provide an open implementation for
* authentication using mobile devices. It was initiated by
* SURFnet and developed by Egeniq.
* More information: http://www.tiqr.org
* @author Ivo Jansch <[email protected]>
* @package tiqr
* @license New BSD License - See LICENSE file for details.
* @copyright (C) 2010-2011 SURFnet BV
*/
* A class implementing secure random number generation.
* @author ivo
class Tiqr_Random
{
* Generate $length cryptographically secure pseudo-random bytes
* Throws when requested number of bytes cannot be generated
* @param int $length the number of bytes to generate.
* @return string containing $length cryptographically secure pseudo-random bytes
* @throws Exception, Error, TypeError
public static function randomBytes($length)
// Get $length cryptographically secure pseudo-random bytes
$rnd=\random_bytes($length);
if (strlen($rnd) !== $length) {
throw new Exception("random_bytes did not return the requested number of bytes");
}
return $rnd;
Tiqr /
tiqr-server-libphp
