public function getIPaymentPassword()
    {
        if ($this->_sIPaymentPassword === null) {
            $this->_sIPaymentPassword = false;
            $this->_sIPaymentPassword = \OxidEsales\Eshop\Core\Registry::getConfig()->getConfigParam('iShopID_iPayment_Passwort');
        }

        return $this->_sIPaymentPassword;
    }