mako\crypto\OpenSSL

public function __construct(array $config)
{
	if(extension_loaded('openssl') === false)
	{
		throw new RuntimeException(vsprintf("%s(): OpenSSL is not available.", array(__METHOD__)));
	}
	
	$this->key      = $config['key'];
	$this->cipher   = $config['cipher'];
}

public function encrypt($string)
{
	return openssl_encrypt($string, $this->cipher, $this->key);
}

public function decrypt($string)
{
	return openssl_decrypt($string, $this->cipher, $this->key);
}