The Keyed-Hash Message Authentication Code (HMAC)

Published

March 6, 2002

Author(s)

National Institute of Standards and Technology (NIST), Elaine Barker, Quynh Dang

Abstract

[Superseded by FIPS 198-1(July 2008): http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901614] This standard describes a keyed-hash message authentication code (HMAC), a mechanism for message authentication using cryptographic hash functions. HMAC can be used with any iterative Approved cryptographic hash function, in combination with a shared secret key. The cryptographic strength of HMAC depends on the properties of the underlying hash function. The HMAC specification in this standard is a generalization of Internet RFC 2104, HMAC, Keyed-Hashing for Message Authentication, and ANSI X9.71, Keyed Hash Message Authentication Code.

Citation

Federal Inf. Process. Stds. (NIST FIPS) - 198

Report Number

198

NIST Pub Series

Federal Inf. Process. Stds. (NIST FIPS)

Pub Type

NIST Pubs

Superceded By Publication

The Keyed-Hash Message Authentication Code (HMAC)

Keywords

computer security, cryptography, HMAC, MAC, message authentication, Federal Information Processing Standard (FIPS)

Citation

(NIST), N. , Barker, E. and Dang, Q. (2002), The Keyed-Hash Message Authentication Code (HMAC), Federal Inf. Process. Stds. (NIST FIPS), National Institute of Standards and Technology, Gaithersburg, MD (Accessed December 13, 2024)