PT-EAP: Posture Transport (PT) Protocol For EAP Tunnel Methods
draft-ietf-nea-pt-eap-06

The information below is for an old version of the document
Document Type Active Internet-Draft (nea WG)
Last updated 2013-01-17 (latest revision 2012-12-29)
Replaces draft-hanna-nea-pt-eap
Stream IETF
Intended RFC status Proposed Standard
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IESG IESG state Waiting for AD Go-Ahead::Revised I-D Needed
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Responsible AD Stephen Farrell
IESG note Susan Thomson (sethomso@cisco.com) is the Document Shepherd
Send notices to nea-chairs@tools.ietf.org, draft-ietf-nea-pt-eap@tools.ietf.org
NEA                                                        N. Cam-Winget
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                             P. Sangster
Expires: June 30, 2013                              Symantec Corporation
                                                       December 27, 2012

     PT-EAP: Posture Transport (PT) Protocol For EAP Tunnel Methods
                        draft-ietf-nea-pt-eap-06

Abstract

   This document specifies PT-EAP, an Extensible Authentication Protocol
   (EAP) based Posture Transport (PT) protocol designed to be used only
   inside a TLS protected EAP tunnel method.  The document also
   describes the intended applicability of PT-EAP.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on June 30, 2013.

Copyright Notice

   Copyright (c) 2012 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
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   described in the Simplified BSD License.

Cam-Winget & Sangster     Expires June 30, 2013                 [Page 1]
Internet-Draft                 NEA PT-EAP                  December 2012

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1.  Prerequisites  . . . . . . . . . . . . . . . . . . . . . .  3
     1.2.  Message Diagram Conventions  . . . . . . . . . . . . . . .  3
     1.3.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  4
     1.4.  Conventions used in this document  . . . . . . . . . . . .  4
     1.5.  Compatibility with other Specifications  . . . . . . . . .  4
   2.  Use of PT-EAP  . . . . . . . . . . . . . . . . . . . . . . . .  4
   3.  Definition of PT-EAP . . . . . . . . . . . . . . . . . . . . .  5
     3.1.  Protocol Overview  . . . . . . . . . . . . . . . . . . . .  5
     3.2.  Version Negotiation  . . . . . . . . . . . . . . . . . . .  6
     3.3.  PT-EAP Message Format  . . . . . . . . . . . . . . . . . .  6
     3.4.  Preventing MITM Attacks with Channel Bindings  . . . . . .  8
   4.  Security Considerations  . . . . . . . . . . . . . . . . . . .  9
     4.1.  Trust Relationships  . . . . . . . . . . . . . . . . . . .  9
       4.1.1.  Posture Transport Client . . . . . . . . . . . . . . .  9
       4.1.2.  Posture Transport Server . . . . . . . . . . . . . . . 10
     4.2.  Threats and Countermeasures  . . . . . . . . . . . . . . . 11
       4.2.1.  Message Confidentiality  . . . . . . . . . . . . . . . 11
       4.2.2.  Message Fabrication  . . . . . . . . . . . . . . . . . 12
       4.2.3.  Message Modification . . . . . . . . . . . . . . . . . 12
       4.2.4.  Denial of Service  . . . . . . . . . . . . . . . . . . 13
       4.2.5.  NEA Asokan Attacks . . . . . . . . . . . . . . . . . . 13
     4.3.  Candidate EAP Tunnel Method Protections  . . . . . . . . . 14
     4.4.  Security Claims for PT-EAP as per RFC3748  . . . . . . . . 14
   5.  Requirements for EAP Tunnel Methods  . . . . . . . . . . . . . 15
   6.  Privacy Considerations . . . . . . . . . . . . . . . . . . . . 16
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 17
     7.1.  Registry for PT-EAP Versions . . . . . . . . . . . . . . . 17
   8.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 18
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 18
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 18
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 19
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 20

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