/**
  * Process autentication complete action
  *
  */
 public function authenticationCompleteAction()
 {
     try {
         if ($validator = $this->_getValidator()) {
             $request = $this->getRequest();
             $data = new Varien_Object();
             $data->setTransactionId($request->getParam('MD'));
             $data->setPaResPayload($request->getParam('PaRes'));
             $validator->authenticate($data);
             Mage::register('current_centinel_validator', $validator);
         }
     } catch (Exception $e) {
         Mage::register('current_centinel_validator', false);
     }
     $this->loadLayout()->renderLayout();
 }