RADIUS Extension for Digest Authentication
RFC 4590
| Document | Type |
RFC - Proposed Standard
(July 2006; No errata)
Obsoleted by RFC 5090
|
|
|---|---|---|---|
| Last updated | 2020-07-29 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 4590 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | David Kessens | ||
| Send notices to | dnelson@enterasys.com, aboba@internaut.com, bernard_aboba@hotmail.com | ||
Network Working Group B. Sterman
Request for Comments: 4590 Kayote Networks
Category: Standards Track D. Sadolevsky
SecureOL, Inc.
D. Schwartz
Kayote Networks
D. Williams
Cisco Systems
W. Beck
Deutsche Telekom AG
July 2006
RADIUS Extension for Digest Authentication
Status of This Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2006).
Abstract
This document defines an extension to the Remote Authentication
Dial-In User Service (RADIUS) protocol to enable support of Digest
Authentication, for use with HTTP-style protocols like the Session
Initiation Protocol (SIP) and HTTP.
Table of Contents
1. Introduction ....................................................2
1.1. Terminology ................................................2
1.2. Motivation .................................................3
1.3. Overview ...................................................4
2. Detailed Description ............................................6
2.1. RADIUS Client Behavior .....................................6
2.1.1. Credential Selection ................................6
2.1.2. Constructing an Access-Request ......................6
2.1.3. Constructing an Authentication-Info Header ..........7
2.1.4. Failed Authentication ...............................8
2.1.5. Obtaining Nonces ....................................9
2.2. RADIUS Server Behavior .....................................9
Sterman, et al. Standards Track [Page 1]
RFC 4590 RADIUS Digest Authentication July 2006
2.2.1. General Attribute Checks ............................9
2.2.2. Authentication .....................................10
2.2.3. Constructing the Reply .............................11
3. New RADIUS Attributes ..........................................12
3.1. Digest-Response attribute .................................12
3.2. Digest-Realm Attribute ....................................13
3.3. Digest-Nonce Attribute ....................................13
3.4. Digest-Response-Auth Attribute ............................14
3.5. Digest-Nextnonce Attribute ................................14
3.6. Digest-Method Attribute ...................................14
3.7. Digest-URI Attribute ......................................15
3.8. Digest-Qop Attribute ......................................15
3.9. Digest-Algorithm Attribute ................................16
3.10. Digest-Entity-Body-Hash Attribute ........................16
3.11. Digest-CNonce Attribute ..................................17
3.12. Digest-Nonce-Count Attribute .............................17
3.13. Digest-Username Attribute ................................17
3.14. Digest-Opaque Attribute ..................................18
3.15. Digest-Auth-Param Attribute ..............................18
3.16. Digest-AKA-Auts Attribute ................................19
3.17. Digest-Domain Attribute ..................................19
3.18. Digest-Stale Attribute ...................................20
3.19. Digest-HA1 Attribute .....................................20
3.20. SIP-AOR Attribute ........................................21
4. Diameter Compatibility .........................................21
5. Table of Attributes ............................................22
6. Examples .......................................................23
7. IANA Considerations ............................................27
8. Security Considerations ........................................27
8.1. Denial of Service .........................................28
8.2. Confidentiality and Data Integrity ........................28
9. Acknowledgements ...............................................29
10. References ....................................................29
10.1. Normative References .....................................29
10.2. Informative References ...................................30
Show full document text