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A GSS-API Mechanism for the Extensible Authentication Protocol
RFC 7055

Document type: RFC - Proposed Standard (December 2013; No errata)
Document stream: IETF
Last updated: 2013-12-31
Other versions: plain text, pdf, html

IETF State: Submitted to IESG for Publication Oct 2010 May 2011
Consensus: Unknown
Document shepherd: Leif Johansson
Shepherd Write-Up: Last changed 2012-06-16

IESG State: RFC 7055 (Proposed Standard)
Responsible AD: Stephen Farrell
Send notices to: abfab-chairs@tools.ietf.org, draft-ietf-abfab-gss-eap@tools.ietf.org

Internet Engineering Task Force (IETF)                   S. Hartman, Ed.
Request for Comments: 7055                             Painless Security
Category: Standards Track                                     J. Howlett
ISSN: 2070-1721                                                JANET(UK)
                                                           December 2013

     A GSS-API Mechanism for the Extensible Authentication Protocol

Abstract

   This document defines protocols, procedures, and conventions to be
   employed by peers implementing the Generic Security Service
   Application Program Interface (GSS-API) when using the Extensible
   Authentication Protocol mechanism.  Through the GS2 family of
   mechanisms defined in RFC 5801, these protocols also define how
   Simple Authentication and Security Layer (SASL) applications use the
   Extensible Authentication Protocol.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on
   Internet Standards is available in 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/rfc7055.

Copyright Notice

   Copyright (c) 2013 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Hartman & Howlett            Standards Track                    [Page 1]
RFC 7055                       EAP GSS-API                 December 2013

Table of Contents

   1. Introduction ....................................................3
      1.1. Discovery ..................................................4
      1.2. Authentication .............................................4
      1.3. Secure Association Protocol ................................6
   2. Requirements Notation ...........................................6
   3. EAP Channel Binding and Naming ..................................6
      3.1. Mechanism Name Format ......................................7
      3.2. Internationalization of Names .............................10
      3.3. Exported Mechanism Names ..................................10
      3.4. Acceptor Name RADIUS AVP ..................................11
      3.5. Proxy Verification of Acceptor Name .......................11
   4. Selection of EAP Method ........................................12
   5. Context Tokens .................................................13
      5.1. Mechanisms and Encryption Types ...........................14
      5.2. Processing Received Tokens ................................15
      5.3. Error Subtokens ...........................................16
      5.4. Initial State .............................................16
           5.4.1. Vendor Subtoken ....................................17
           5.4.2. Acceptor Name Request ..............................17
           5.4.3. Acceptor Name Response .............................18
      5.5. Authenticate State ........................................18
           5.5.1. EAP Request Subtoken ...............................19
           5.5.2. EAP Response Subtoken ..............................19
      5.6. Extensions State ..........................................20
           5.6.1. Flags Subtoken .....................................20
           5.6.2. GSS Channel Bindings Subtoken ......................20
           5.6.3. MIC Subtoken .......................................21
      5.7. Example Token .............................................22
      5.8. Context Options ...........................................23
   6. Acceptor Services ..............................................23
      6.1. GSS-API Channel Binding ...................................24
      6.2. Per-Message Security ......................................24
      6.3. Pseudorandom Function .....................................24
   7. IANA Considerations ............................................25
      7.1. OID Registry ..............................................25

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