Most recent edit on 2008-01-28 09:15:24 by KryptronicWebmaster
Additions:
2) Using a local Yahoo Widget tool published by Kryptronic that is installed on the administrator's local computer (offline).
Deletions:
2) Using a local Yahoo Widget tool published by Kryptronic that is installed on the administrators local computer (offline).
Oldest known version of this page was edited on 2008-01-28 09:15:06 by KryptronicWebmaster []
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ClickCartPro - Offline Credit Card Processing
Below is an explanation of how the offline credit card processing system in ClickCartPro works.
ClickCartPro supports offline credit card processing. Offline processing is a method that allows a store owner to process credit card transactions with a local credit card machine rather than using a gateway service. When an offline order is received by ClickCartPro, the card information submitted is checked against the MOD-10 algorithm to ensure the card number is properly formatted. This ensures the card used is a valid Visa, Mastercard, American Express or Discover number. It does not check to see if it is a valid account number or check for funds availability, etc.
If the credit card number entered in ClickCartPro is valid, the order is approved and two email messages are sent to the primary order email address for the order. The first message is a standard order confirmation email message. The second message contains:
- The order number
- An encrypted copy of the card number
- An encrypted copy of the CVV2 code (if entered)
- The card expiration date
ClickCartPro program encrypts the credit card information using a HCE_MD5 encryption module. This module implements a chaining block cipher using a one way hash with two keys. One key is established within the codebase and the other is unique to each installation. This method of encryption is the same that is used by Radius (RFC2138). All encrypted data is Mime Base64 encoded for transport. This data can be decrypted in two different ways:
- Using the management interface function: ClickCartPro > Commerce: Orders and Checkout > Decrypt Offline Order Data
- Using a local Yahoo Widget tool published by Kryptronic that is installed on the administrators local computer (offline).
Please note: The credit card information is not stored in the database. This information is encrypted and emailed only. This is done for security purposes.
Wiki: ClickCartPro