Crypto-Agility Requirements for Remote Authentication Dial-In User Service (RADIUS)
RFC 6421
Internet Engineering Task Force (IETF) D. Nelson, Ed.
Request for Comments: 6421 Elbrys Networks, Inc.
Category: Informational November 2011
ISSN: 2070-1721
Crypto-Agility Requirements
for Remote Authentication Dial-In User Service (RADIUS)
Abstract
This memo describes the requirements for a crypto-agility solution
for Remote Authentication Dial-In User Service (RADIUS).
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6421.
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Nelson Informational [Page 1]
RFC 6421 Crypto-Agility Requirements for RADIUS November 2011
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Table of Contents
1. Introduction ....................................................2
1.1. General ....................................................2
1.2. Requirements Language ......................................3
1.3. Publication Process ........................................3
2. A Working Definition of Crypto-Agility ..........................4
3. The Current State of RADIUS Security ............................5
4. The Requirements ................................................5
4.1. Overall Solution Approach ..................................5
4.2. Security Services ..........................................6
4.3. Backwards Compatibility ....................................7
4.4. Interoperability and Change Control ........................9
4.5. Scope of Work ..............................................9
4.6. Applicability of Automated Key Management Requirements .....9
5. Security Considerations ........................................10
6. Acknowledgments ................................................10
7. References .....................................................10
7.1. Normative References ......................................10
7.2. Informative References ....................................11
1. Introduction
1.1. General
At the IETF 66 meeting, the RADIUS Extensions (RADEXT) Working Group
(WG) was asked by members of the Security Area Directorate to prepare
a formal description of a crypto-agility work item and corresponding
charter milestones. After consultation with one of the Security Area
Directors (Russ Housley), text was initially proposed on the RADEXT
WG mailing list on October 26, 2006. The following summarizes that
proposal:
Nelson Informational [Page 2]
RFC 6421 Crypto-Agility Requirements for RADIUS November 2011
The RADEXT WG will review the security requirements for crypto-
agility in IETF protocols, and identify the deficiencies of the
existing RADIUS protocol specifications against these
requirements. Specific attention will be paid to RFC 4962
[RFC4962].
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