generator.py This file generates a random NRIC number that matches the checksum. It includes a function for generating the checksum for both 'S'/'T' and 'F'/'G' prefixes. validator.py This file ...

Takes in a credit card number from a common credit card vendor (Visa, MasterCard, American Express, Discoverer) and validates it to make sure that it is a valid number (look into how credit cards use ...

How does a checksum work? The algorithm uses a cryptographic hash function that takes an input and produces a string (a sequence of numbers and letters) of a fixed length. The input file can be a ...