Message authentication code

nouncandidate·updated May 9, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

A cryptographic checksum on data that uses a symmetric key to detect both accidental and intentional modifications of the data. MACs provide authenticity and integrity protection, but not non-repudiation protection.

Framework senses

8 senses across 6 frameworks

ISACA Cybersecurity Glossary1 senseview framework →

§1: An American National Standards Institute (ANSI) standard checksum that is computed using Data Encryption Standard (DES)

NISTIR 7298: Glossary of Key Information Security Terms, Revision 23 sensesview framework →

§1: A cryptographic checksum on data that uses a symmetric key to detect both accidental and intentional modifications of the data. MACs provide authenticity and integrity protection, but not non-repudiation protection.
§2 · sense_2_pending_review: A cryptographic checksum that results from passing data through a message authentication algorithm.
§3 · sense_3_pending_review: 1. See Checksum. 2. A specific ANSI standard for a checksum.

CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →

§1: 1. See Checksum. 2. A specific ANSI standard for a checksum.

NIST SP 800-631 senseview framework →

§1: A cryptographic checksum on data that uses a symmetric key to detect both accidental and intentional modifications of the data. MACs provide authenticity and integrity protection, but not non-repudiation protection.

FIPS PUB 2011 senseview framework →

§1: A cryptographic checksum on data that uses a symmetric key to detect both accidental and intentional modifications of the data. MACs provide authenticity and integrity protection, but not non-repudiation protection.

FIPS PUB 1981 senseview framework →

§1: A cryptographic checksum that results from passing data through a message authentication algorithm.