public static function initialize()
{
global $config;
if (!in_array('mcrypt', get_loaded_extensions())) {
throw new \Exception('The PHP mcrypt extension is not installed');
}
if ((self::$resTd = mcrypt_module_open("rijndael-256", '', "cfb", '')) == false) {
throw new \Exception('Error initializing encryption module');
}
self::$clesCryptage = $config["encryptKey"];
}