Information, Computer and Network Security Terms Glossary and Dictionary

LUHN Formula

The LUHN formula, also called modulus 10, is a simple algorithm used to validate the number on a credit card. It works on cards issued by all the major credit card companies, including American Express, Visa, MasterCard, Discover, and Diner's Club. Originally created by a group of mathematicians in the 1960s, the LUHN formula is in the public domain, and anyone can use it.

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LUHN Formula