RFC 2857 · PROPOSED STANDARD · 2000
WED · 29 JUL 2026
The Use of HMAC-RIPEMD-160-96 within ESP and AH
Overview
RFC 2857, “The Use of HMAC-RIPEMD-160-96 within ESP and AH”, is a Proposed Standard document published in June 2000 by A. Keromytis, N. Provos. The canonical text is published by the RFC Editor.
Abstract
This memo describes the use of the HMAC algorithm in conjunction with the RIPEMD-160 algorithm as an authentication mechanism within the revised IPSEC Encapsulating Security Payload (ESP) and the revised IPSEC Authentication Header (AH). [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 2857 is hosted at rfc-editor.org. Available in TXT,HTML.
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