HMAC

Summary

HMAC is a message authentication code^[1]. HMAC draws 830 Wikipedia views per month (message_authentication_code category, ranking #1 of 5).^[2]

Key Facts

• HMAC's image is recorded as SHAhmac.svg^[3].
• HMAC's image is recorded as SHAhmacTR.svg^[4].
• HMAC's image is recorded as SHAhmacCS.svg^[5].
• HMAC's instance of is recorded as message authentication code^[6].
• HMAC's Commons category is recorded as HMAC^[7].
• HMAC's Freebase ID is recorded as /m/04cfs^[8].
• HMAC's described by source is recorded as RFC 2104: HMAC: Keyed-Hashing for Message Authentication^[9].
• HMAC's has characteristic is recorded as malleability^[10].
• HMAC's uses is recorded as keyed hashing^[11].
• HMAC's defining formula is recorded as \operatorname{HMAC}(K, m) = \operatorname{H}\Bigl(\bigl(K' \oplus opad\bigr) \parallel \operatorname{H} \bigl(\left(K' \oplus ipad\right) \parallel m\bigr)\Bigr)^[12].
• HMAC's OpenAlex ID is recorded as C100485629^[13].

Why It Matters

HMAC draws 830 Wikipedia views per month (message_authentication_code category, ranking #1 of 5).^[2] HMAC has Wikipedia articles in 19 language editions, a strong signal of global cultural recognition.^[14] HMAC is known by 4 alternative names across languages and contexts.^[15]