Editing Message authentication code (section)

==Standards==
Various standards exist that define MAC algorithms. These include:
* FIPS PUB 113 ''Computer Data Authentication'',<ref>{{Cite web |url=http://www.itl.nist.gov/fipspubs/fip113.htm |title=FIPS PUB 113 ''Computer Data Authentication'' |access-date=2010-10-10 |archive-url=https://web.archive.org/web/20110927022556/http://www.itl.nist.gov/fipspubs/fip113.htm |archive-date=2011-09-27 |url-status=dead }}</ref> withdrawn in 2002,<ref>{{Cite web |url=http://www.itl.nist.gov/fipspubs/withdraw.htm |title=Federal Information Processing Standards Publications, Withdrawn FIPS Listed by Number |access-date=2010-10-10 |archive-url=https://web.archive.org/web/20100801020458/http://www.itl.nist.gov/fipspubs/withdraw.htm |archive-date=2010-08-01 |url-status=dead }}</ref> defines an algorithm based on [[Data Encryption Standard|DES]].
* FIPS PUB 198-1 ''The Keyed-Hash Message Authentication Code (HMAC)''<ref>{{Cite web|url=http://csrc.nist.gov/publications/fips/fips198-1/FIPS-198-1_final.pdf|title=''The Keyed-Hash Message Authentication Code (HMAC)''|accessdate=20 December 2023}}</ref>
* NIST SP800-185 ''SHA-3 Derived Functions: cSHAKE, KMAC, TupleHash, and ParallelHash''<ref>[https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-185.pdf SHA-3 Derived Functions] nvlpubs.nist.gov</ref>
* [[ISO/IEC 9797-1]] ''Mechanisms using a block cipher''<ref>{{Cite web|url=https://www.iso.org/standard/50375.html|title=ISO/IEC 9797-1:2011|website=ISO|accessdate=20 December 2023}}</ref>
* [[International Organization for Standardization|ISO]]/IEC 9797-2 ''Mechanisms using a dedicated hash-function''<ref>{{Cite web|url=https://www.iso.org/standard/51618.html|title=ISO/IEC 9797-2:2011|website=ISO|accessdate=20 December 2023}}</ref>
* [[International Organization for Standardization|ISO]]/IEC 9797-3 ''Mechanisms using a universal hash-function''<ref>{{Cite web|url=https://www.iso.org/standard/51619.html|title=ISO/IEC 9797-3:2011|website=ISO|accessdate=20 December 2023}}</ref>
* [[International Organization for Standardization|ISO]]/IEC 29192-6 ''Lightweight cryptography - Message authentication codes''<ref>{{Cite web|url=https://www.iso.org/standard/71116.html|title=ISO/IEC 29192-6:2019|website=ISO|accessdate=20 December 2023}}</ref>

ISO/IEC 9797-1 and -2 define generic models and algorithms that can be used with any block cipher or hash function, and a variety of different parameters. These models and parameters allow more specific algorithms to be defined by nominating the parameters. For example, the FIPS PUB 113 algorithm is functionally equivalent to ISO/IEC 9797-1 MAC algorithm 1 with padding method 1 and a block cipher algorithm of DES.