RFC 4305 · PROPOSED STANDARD · 2005

Cryptographic Algorithm Implementation Requirements for Encapsulating Security Payload and Authentication Header

Overview

RFC 4305, “Cryptographic Algorithm Implementation Requirements for Encapsulating Security Payload and Authentication Header”, is a Proposed Standard document published in December 2005 by D. Eastlake 3rd. It obsoletes RFC 2402, RFC 2406. It has been obsoleted by RFC 4835 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.

Abstract

The IPsec series of protocols makes use of various cryptographic algorithms in order to provide security services. The Encapsulating Security Payload (ESP) and the Authentication Header (AH) provide two mechanisms for protecting data being sent over an IPsec Security Association (SA). To ensure interoperability between disparate implementations, it is necessary to specify a set of mandatory-to-implement algorithms to ensure that there is at least one algorithm that all implementations will have available. This document defines the current set of mandatory-to-implement algorithms for ESP and AH as well as specifying algorithms that should be implemented because they may be promoted to mandatory at some future time. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

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 4305 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC obsoletes
RFC 2402 RFC 2406
Obsoleted by
RFC 4835
Other RFCs from 2005

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