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The Luhn mod N algorithm is an extension to the Luhn algorithm that allows it to work with sequences of values in any even-numbered base. This can be useful when a check digit is required to validate an identification string composed of letters, a combination of letters and digits or any arbitrary set of N characters where N is divisible by 2.
References
- 1 2 New Zealand Health Information Service. National Health Index (NHI). Retrieved 13 June 2007.
- ↑ New Zealand Health Information Service NHI Number. Retrieved 13 June 2007.
- ↑ Ministry of Health. "HISO 10046:2019 Consumer Health Identity Standard". Ministry of Health. Retrieved 15 August 2020.
- ↑ MacRae, Jayden (November 2015). "Evaluating a weakness of the National Health Index identifier check-digit to transcription errors in data entry" (PDF). Health Informatics New Zealand Conference 2015. Retrieved 13 May 2021.
- ↑ MacRae, Jayden. "Check-Digit Collisions in the New NHI Implementation". DataCraft Analytics. DataCraft Analytics. Retrieved 5 March 2023.