rhost

public function hashPassword($password){
     return CPasswordHelper::hashPassword($password);
}

public function validatePassword($password){
    return CPasswordHelper::verifyPassword($password,$this->password);
}

public function authenticate(){

		$user = Users::model()->findByAttributes(array('login' => $this->username));

		if($user === null){
			$this->errorCode = self::ERROR_USERNAME_INVALID;
		}else if(!$user->validatePassword($this->password)){
			$this->errorCode = self::ERROR_PASSWORD_INVALID;
		}else{
			$this->_id = $user->id;
			$this->setState('login', $user->login);
			$this->errorCode = self::ERROR_NONE;
		}
		return $this->errorCode == self::ERROR_NONE;
	}