 HMAC: Keyed-Hashing for Message Authentication (RFC 2104)

February1997, bylines H.Krawczyk, M.Bellare and R.Canetti. Title page and Status of This Memo classify the RFC as Informational; §§1–2 motivate and define HMAC. Full author identities are verified separately by the June1996 author manuscript Keying Hash Functions for Message Authentication, rather than inferred by expanding initials.