HMAC-SHA IP Authentication with Replay Prevention

Document Type Expired Internet-Draft (ipsec WG)
Authors K. Glenn  , Shu-jen Chang 
Last updated 1996-11-20
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes a keyed-SHA transform to be used in conjunction with the IP Authentication Header [RFC-1826]. The particular transform is based on [HMAC-MD5]. An option is also specified to guard against replay attacks.


K. Glenn (
Shu-jen Chang (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)