Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    Glossary
A  |  B  |  C  |  D  |  E  |  F  |  G  |  H  |  I  |  J  |  K  |  L  |  M  |  N  |  O  |  P  |  Q  |  R  |  S  |  T  |  U  |  V  |  W  |  X  |  Y  |  Z

Hash-Based Message Authentication Code (HMAC)

Abbreviations / Acronyms / Synonyms:

Definitions:

  A message authentication code that uses a cryptographic key in conjunction with a hash function.
Sources:
CNSSI 4009-2015 under hash-based message authentication code (HMAC)
NISTIR 7711 under Hash-based Message Authentication Code

  A message authentication code that uses an approved keyed-hash function (i.e., see FIPS 19812).
Sources:
NIST SP 800-57 Part 1 Rev. 5 under Hash-based message authentication code (HMAC)