Zend_Auth for Db

//Zend Auth
$authAdapter = new Zend_Auth_Adapter_DbTable($dbAdapter,'users','username','password');
$authAdapter -> setIdentity('refine')
        ->  setCredential('63a9f0ea7bb98050796b649e85481845');
$result = $authAdapter -> authenticate();

print_r($authAdapter -> getResultRowObject());die;