IETF RFC 2403
The Use of HMAC-MD5-96 within ESP and AH
|Publication Date:||1 November 1998|
This memo describes the use of the HMAC algorithm [RFC-2104] in conjunction with the MD5 algorithm [RFC-1321] as an authentication mechanism within the revised IPSEC Encapsulating Security Payload [ESP] and the revised IPSEC Authentication Header [AH]. HMAC with MD5 provides data origin authentication and integrity protection.
Further information on the other components necessary for ESP and AH implementations is provided by [Thayer97a].