Sage Pay v3.00 Integration
Can anyone help me incorporate the Sagepay v3.00 AES/CBC/PKCS#5 algorithm (encryption) into the following file. I'm really struggling to understand how to include so that customer data is encrypted to the new standard and then decrypted on the way back. Using Sagepay Form with a very old version of cs-cart, though have successfully managed to upgrade from version 2.22 to 2.23, but Sagepay are pulling all support from July. Not sure how much of this script is relevant to the encryption: <?php if ( !defined('IN_CSCART') ) { die('Access denied'); } if (defined('PAYMENT_NOTIFICATION')) { // Get