home/glossary/Hash-based Message Authentication Code

Hash-based Message Authentication Code

nouncandidate·updated May 12, 2026

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

polysemousMWE

Classifications

Entity Type

Control0%rule-basedmulti_axis_classifier_low_confidence.v1
?unassignedlast reviewed

Sensitivity

Regulated85%llm-generatedllm:claude-haiku-4-5
?unassignedlast reviewed

Information Class

unclassified

Variants

acronym
HMAC
plural
Hash-based Message Authentication Codes
possessive
Hash-based Message Authentication Code's
pluralpossessive
Hash-based Message Authentication Codes'