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Keyed-hash based message authentication code

nounid 3095·updated Aug 30, 2026
verified· unreviewed

A message authentication code that uses a cryptographic key in conjunction with a hash function.

MWE

Attested in

No recorded attestations. They are written when an MWE tagging stage is completed, stamped with the pack version and the document’s digest.

Classifications

Entity Type

Control0%rule-basedmulti_axis_classifier_low_confidence.v1

Sensitivity

Regulated80%llm-generatedllm:claude-haiku-4-5

Information Class

90%llm-generatedllm:claude-haiku-4-5

Variants

acronym
HMAC
plural
Keyed-hash based message authentication codes
possessive
Keyed-hash based message authentication code's
pluralpossessive
Keyed-hash based message authentication codes'

Framework definitions

NISTIR 7298: Glossary of Key Information Security Terms, Revision 21 senseview framework →
§1
A message authentication code that uses a cryptographic key in conjunction with a hash function.
CNSSI-4009 (Glossary of Information Assurance Terms)1 senseview framework →
§1
A message authentication code that uses a cryptographic key in conjunction with a hash function.
FIPS PUB 1981 senseview framework →
§1
A message authentication code that uses a cryptographic key in conjunction with a hash function.
Legacy lexicon import1 senseview framework →
§1 · legacy_primary
A message authentication code that uses a cryptographic key in conjunction with a hash function.
DR-088 backfill from the noun definition column

Outgoing relationships

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Incoming relationships

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