kb/data/developer.mozilla.org/en-US/docs/Glossary/HMAC-0.md

9.7 KiB

title chunk source category tags date_saved instance
HMAC - Glossary | MDN 1/3 https://developer.mozilla.org/en-US/docs/Glossary/HMAC reference web, html, css, javascript, documentation 2026-05-05T05:33:18.946352+00:00 kb-cron

MDN HTML HTML: Markup language

HTML reference

HTML guides

Markup languages

CSS CSS: Styling language

CSS reference

CSS guides

Layout cookbook

JavaScriptJS JavaScript: Scripting language

JS reference

JS guides

Web APIs Web APIs: Programming interfaces

Web API reference

Web API guides

All All web technology

Technologies

Topics

Learn Learn web development

Frontend developer course

Learn HTML

Learn CSS

Learn JavaScript

Tools Discover our tools

About Get to know MDN better

Blog

  1. Glossary
  2. HMAC

HMAC

Hash-based message authentication code(HMAC) is a mechanism used for cryptographically authenticating messages. It can use any kind of cryptographic hash function. Its strength depends on the underlying hash function and the chosen secret key. With such a combination, the HMAC verification algorithm is then known with a compound name such as HMAC-SHA2. HMAC is used to ensure both integrity and authentication.

In this article

See also