HTTP Authentication Extensions for Interactive Clients
draft-ietf-httpauth-extension-06

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Document Type Active Internet-Draft (httpauth WG)
Last updated 2016-05-25
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HTTPAUTH Working Group                                           Y. Oiwa
Internet-Draft                                               H. Watanabe
Intended status: Experimental                                  H. Takagi
Expires: November 23, 2016                                    ITRI, AIST
                                                              T. Hayashi
                                                                 Lepidum
                                                                 Y. Ioku
                                                              Individual
                                                            May 22, 2016

         HTTP Authentication Extensions for Interactive Clients
                    draft-ietf-httpauth-extension-06

Abstract

   This document specifies extensions of HTTP authentication framework
   for interactive clients.  Recently, fundamental features of HTTP-
   level authentication are insufficient for complex requirements of
   various Web-based applications.  This forces these applications to
   implement their own authentication frameworks using HTML Forms and
   other means, which becomes one of the hurdles against introducing
   secure authentication mechanisms handled jointly by servers and user-
   agent.  The extended framework fills gaps between Web application
   requirements and HTTP authentication provisions to solve the above
   problems, while maintaining compatibility against existing Web and
   non-Web uses of HTTP authentications.

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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   time.  It is inappropriate to use Internet-Drafts as reference
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   This Internet-Draft will expire on November 23, 2016.

Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the

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Internet-Draft   HTTP Auth. Ext. for Interactive Clients        May 2016

   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
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   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.

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1.  Terminology  . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . .  5
     2.1.  Terms for describing authentication protocol flow  . . . .  5
     2.2.  Syntax Notation  . . . . . . . . . . . . . . . . . . . . .  7
   3.  Optional Authentication  . . . . . . . . . . . . . . . . . . .  8
   4.  Authentication-Control header  . . . . . . . . . . . . . . . .  9
     4.1.  Non-ASCII extended header parameters . . . . . . . . . . . 11
     4.2.  Auth-style parameter . . . . . . . . . . . . . . . . . . . 12
     4.3.  Location-when-unauthenticated parameter  . . . . . . . . . 13
     4.4.  No-auth parameter  . . . . . . . . . . . . . . . . . . . . 13
     4.5.  Location-when-logout parameter . . . . . . . . . . . . . . 14
     4.6.  Logout-timeout parameter . . . . . . . . . . . . . . . . . 15
     4.7.  Username parameter . . . . . . . . . . . . . . . . . . . . 15
   5.  Usage examples (informative) . . . . . . . . . . . . . . . . . 16
     5.1.  Example 1: a portal site . . . . . . . . . . . . . . . . . 16
       5.1.1.  Case 1: a simple application . . . . . . . . . . . . . 17
       5.1.2.  Case 2: specific action required on log-out  . . . . . 17
       5.1.3.  Case 3: specific page displayed before log-in  . . . . 18
     5.2.  Example 2: authenticated user-only sites . . . . . . . . . 18
     5.3.  When to use Cookies  . . . . . . . . . . . . . . . . . . . 18
     5.4.  Parallel deployment with Form/Cookie authentications . . . 19
   6.  Methods to extend this protocol  . . . . . . . . . . . . . . . 20
   7.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 20
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