Mutual Authentication Protocol for HTTP
draft-ietf-httpauth-mutual-11

Document Type Active Internet-Draft (httpauth WG)
Last updated 2017-03-16 (latest revision 2016-11-13)
Replaces draft-oiwa-httpbis-mutualauth
Stream IETF
Intended RFC status Experimental
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Stream WG state Submitted to IESG for Publication
Document shepherd Rifaat Shekh-Yusef
Shepherd write-up Show (last changed 2016-07-17)
IESG IESG state RFC Ed Queue
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Send notices to "Rifaat Shekh-Yusef" <rifaat.ietf@gmail.com>
IANA IANA review state Version Changed - Review Needed
IANA action state RFC-Ed-Ack
RFC Editor RFC Editor state AUTH48
HTTPAUTH Working Group                                           Y. Oiwa
Internet-Draft                                               H. Watanabe
Intended status: Experimental                                  H. Takagi
Expires: May 18, 2017                                         ITRI, AIST
                                                                K. Maeda
                                                              T. Hayashi
                                                                 Lepidum
                                                                 Y. Ioku
                                                              Individual
                                                       November 14, 2016

                Mutual Authentication Protocol for HTTP
                     draft-ietf-httpauth-mutual-11

Abstract

   This document specifies a mutual authentication scheme for the
   Hypertext Transfer Protocol (HTTP).  This scheme provides true mutual
   authentication between an HTTP client and an HTTP server using
   password-based authentication.  Unlike the Basic and Digest
   authentication schemes, the Mutual authentication scheme specified in
   this document assures the user that the server truly knows the user's
   encrypted password.

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
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 18, 2017.

Copyright Notice

   Copyright (c) 2016 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

Oiwa, et al.              Expires May 18, 2017                  [Page 1]
Internet-Draft   Mutual Authentication Protocol for HTTP   November 2016

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  6
     1.2.  Document Structure and Related Documents . . . . . . . . .  6
   2.  Protocol Overview  . . . . . . . . . . . . . . . . . . . . . .  7
     2.1.  Messages Overview  . . . . . . . . . . . . . . . . . . . .  7
     2.2.  Typical Flows of the Protocol  . . . . . . . . . . . . . .  8
     2.3.  Alternative Flows  . . . . . . . . . . . . . . . . . . . . 10
   3.  Message Syntax . . . . . . . . . . . . . . . . . . . . . . . . 11
     3.1.  Non-ASCII extended header parameters . . . . . . . . . . . 12
     3.2.  Values . . . . . . . . . . . . . . . . . . . . . . . . . . 13
       3.2.1.  Tokens . . . . . . . . . . . . . . . . . . . . . . . . 13
       3.2.2.  Strings  . . . . . . . . . . . . . . . . . . . . . . . 14
       3.2.3.  Numbers  . . . . . . . . . . . . . . . . . . . . . . . 14
   4.  Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     4.1.  401-INIT and 401-STALE . . . . . . . . . . . . . . . . . . 16
     4.2.  req-KEX-C1 . . . . . . . . . . . . . . . . . . . . . . . . 18
     4.3.  401-KEX-S1 . . . . . . . . . . . . . . . . . . . . . . . . 19
     4.4.  req-VFY-C  . . . . . . . . . . . . . . . . . . . . . . . . 20
     4.5.  200-VFY-S  . . . . . . . . . . . . . . . . . . . . . . . . 20
   5.  Authentication Realms  . . . . . . . . . . . . . . . . . . . . 21
     5.1.  Resolving Ambiguities  . . . . . . . . . . . . . . . . . . 22
   6.  Session Management . . . . . . . . . . . . . . . . . . . . . . 23
   7.  Host Validation Methods  . . . . . . . . . . . . . . . . . . . 25
     7.1.  Applicability notes  . . . . . . . . . . . . . . . . . . . 26
     7.2.  Notes on tls-unique  . . . . . . . . . . . . . . . . . . . 27
   8.  Authentication Extensions  . . . . . . . . . . . . . . . . . . 27
   9.  String Preparation . . . . . . . . . . . . . . . . . . . . . . 28
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