CreditCard?

Credit Card Validation - Check Digits (MOD-10 Algorithm).

The simple program is written in Visual C# 2005 applications. You .net 2.0 installed in your PC.

Credit Card Validation Installer

This document outlines procedures and algorithms for verifying the accuracy and validity of credit card numbers. Most credit card numbers are encoded with a “Check Digit”. A check digit is a digit added to a number (either at the end or the beginning) that validates the authenticity of the number. A simple algorithm is applied to the other digits of the number which yields the check digit. By running the algorithm and comparing the check digit you get from the algorithm with the check digit encoded with the credit card number, you can verify that you have correctly read all of the digits and that they make a valid combination.Credit card validation can be used, for example, to validate credit card number keyed or said on the phone by a user before sending it our for debit authorization. If you are issuing your own cards, you may want to use MOD10 to encode their numbers validity.