public static function connectSecure(MysqlEncryption $enc, $params = array())
 {
     $regKey = static::createRegistryKey($enc);
     $conn = static::get($regKey);
     if ($conn) {
         return $conn;
     }
     static::$registry[$regKey] = Mysql::connectFromEncryption($enc, $params);
     return static::$registry[$regKey];
 }