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<?php
declare(strict_types=1);
namespace SimpleSAML\Utils;
/**
* Utility class for random data generation and manipulation.
*
* @package SimpleSAMLphp
*/
class Random
{
/**
* The fixed length of random identifiers.
*/
public const ID_LENGTH = 43;
/**
* Generate a random identifier, ID_LENGTH bytes long.
*
* @return string A ID_LENGTH-bytes long string with a random, hex-encoded string.
*
* @author Andreas Solberg, UNINETT AS <andreas.solberg@uninett.no>
* @author Olav Morken, UNINETT AS <olav.morken@uninett.no>
* @author Jaime Perez, UNINETT AS <jaime.perez@uninett.no>
*/
public static function generateID()
{
return '_' . bin2hex(openssl_random_pseudo_bytes((int) ((self::ID_LENGTH - 1) / 2)));
}
}
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