Recommendation for Block Cipher Modes of Operation: The CMAC Mode for Authentication

Published

October 6, 2016

Author(s)

Morris J. Dworkin

Abstract

This Recommendation specifies a message authentication code (MAC) algorithm based on a symmetric key block cipher. This block cipher-based MAC algorithm, called CMAC, may be used to provide assurance of the authenticity and, hence, the integrity of binary data. [Supersedes SP 800-38B (May 2005): https://www.nist.gov/node/562931; See page ii for errata]

Citation

Special Publication (NIST SP) - 800-38B

Report Number

800-38B

NIST Pub Series

Special Publication (NIST SP)

Pub Type

NIST Pubs

Supercedes Publication

Recommendation for Block Cipher Modes of Operation: The CMAC Mode for Authentication

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DOI Link

Keywords

authentication, block cipher, cryptography, information security, integrity, message authentication code, mode of operation

Citation

Dworkin, M. (2016), Recommendation for Block Cipher Modes of Operation: The CMAC Mode for Authentication, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.SP.800-38B (Accessed October 6, 2025)