https://github.com/homebeaver/standard-validator

extends commons-validator with ISO IEC 7064 System check digits.

check-digit credit-card hybrid-system iban imo iso-iec-7064 lei leitweg luhn mod-11-10 mod-11-2 mod-1271-36 mod-27-26 mod-37-2 mod-37-36 mod-661-26 mod-97-10 polynomial-system tin vatin

Last synced: 14 Jan 2026