public static function decode($value, $key = null)
{
if ($key == null) {
$key = Encryption::$skey;
} else {
$key = pack('H*', $key);
}
if (!$value) {
return false;
}
$crypttext = Encryption::safe_b64decode($value);
$iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB);
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$decrypttext = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $crypttext, MCRYPT_MODE_ECB, $iv);
return trim($decrypttext);
}
