Implementing the Luhn Algorithm involves writing a simple script that follows the specific steps of the algorithm. Here's a basic implementation in Python:
def luhn_algorithm(card_number): digits = [int(digit) for digit in str(card_number)] checksum = 0
# Reverse the digits and process them for i, digit in enumerate(reversed(digits)): if i % 2 == 1: digit *= 2 if digit > 9: digit -= 9 checksum += digit