Port of Phalcon 2.0.x Phalcon\Crypt.
Provides encryption facilities to phalcon applications.
$crypt = new \Phalcon\Legacy\Crypt();
$key = 'le password';
$text = 'This is a secret text';
$encrypted = $crypt->encrypt($text, $key);
echo $crypt->decrypt($encrypted, $key);