mrautio / luhn-bruteforce

Tool to deduce and generate values with Luhn checksum, such as, card numbers (PANs)

Luhn bruteforce

Tool to deduce or generate various values that utilize Luhn checksum (modulus 10), such as, credit card numbers (PANs).

Examples

Deducing list of values when checksum is known

This prints values with correct luhn checksum. --values parameter takes multiple arguments.

• Comma (,) separates a permutation option
• Space ( ) separates a permutation section of the value
• N character is a shorthand for "any digit" permutation 0,1,2,3,4,5,6,7,8,9

./luhn-brute --values 411111,400000 N 0,1,3,8,9 11111111
4111110311111111
4111111111111111
4111112911111111
4111116011111111
4111117811111111
4000000011111111
4000001811111111
4000005911111111
4000008311111111
4000009111111111

Validate if value has a correct checksum

Program exits successfully (retval 0) if one or more valid checksums are encountered

./luhn-brute --values 4111111111111111
4111111111111111

Generate a checksum for a value

Checksum is generated and added to the suffix for the value

./luhn-brute --values 444444444444444 --generate-luhn
4444444444444448