The Simple Integration Method uses scripting techniques to authenticate transactions with a unique transaction fingerprint. SIM provides a customizable, secure hosted payment form to make integration easy for Web merchants that do not have an SSL certificate. The Authorize.net Payment Gateway can handle all the steps in the secure transaction process - payment data collection, data submission and the response to the customer - while keeping Authorize.Net virtually transparent. * Payment gateway hosted payment form employs 128-bit SSL data encryption. * Digital fingerprints enhance security, providing multiple layers of authentication. * Customize the look and feel of the payment gateway hosted payment form and/or receipt page.