OAuth 2.0 Authorization Server Metadata
draft-ietf-oauth-discovery-07

Document Type Active Internet-Draft (oauth WG)
Last updated 2017-10-09 (latest revision 2017-09-07)
Replaces draft-jones-oauth-discovery
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication (wg milestone: Mar 2017 - Submit 'OAuth 2.0 Au... )
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Send notices to Hannes Tschofenig <Hannes.Tschofenig@gmx.net>
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OAuth Working Group                                             M. Jones
Internet-Draft                                                 Microsoft
Intended status: Standards Track                             N. Sakimura
Expires: March 11, 2018                                              NRI
                                                              J. Bradley
                                                           Ping Identity
                                                       September 7, 2017

                OAuth 2.0 Authorization Server Metadata
                     draft-ietf-oauth-discovery-07

Abstract

   This specification defines a metadata format that an OAuth 2.0 client
   can use to obtain the information needed to interact with an OAuth
   2.0 authorization server, including its endpoint locations and
   authorization server capabilities.

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 https://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 March 11, 2018.

Copyright Notice

   Copyright (c) 2017 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
   (https://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

Jones, et al.            Expires March 11, 2018                 [Page 1]
Internet-Draft   OAuth 2.0 Authorization Server Metadata  September 2017

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Notation and Conventions . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Authorization Server Metadata . . . . . . . . . . . . . . . .   3
     2.1.  Signed Authorization Server Metadata  . . . . . . . . . .   7
   3.  Obtaining Authorization Server Metadata . . . . . . . . . . .   8
     3.1.  Authorization Server Metadata Request . . . . . . . . . .   9
     3.2.  Authorization Server Metadata Response  . . . . . . . . .   9
     3.3.  Authorization Server Metadata Validation  . . . . . . . .  10
   4.  String Operations . . . . . . . . . . . . . . . . . . . . . .  10
   5.  Compatibility Notes . . . . . . . . . . . . . . . . . . . . .  11
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
     6.1.  TLS Requirements  . . . . . . . . . . . . . . . . . . . .  11
     6.2.  Impersonation Attacks . . . . . . . . . . . . . . . . . .  11
     6.3.  Publishing Metadata in a Standard Format  . . . . . . . .  12
     6.4.  Protected Resources . . . . . . . . . . . . . . . . . . .  12
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
     7.1.  OAuth Authorization Server Metadata Registry  . . . . . .  13
       7.1.1.  Registration Template . . . . . . . . . . . . . . . .  14
       7.1.2.  Initial Registry Contents . . . . . . . . . . . . . .  14
     7.2.  Updated Registration Instructions . . . . . . . . . . . .  17
     7.3.  Well-Known URI Registry . . . . . . . . . . . . . . . . .  18
       7.3.1.  Registry Contents . . . . . . . . . . . . . . . . . .  18
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  18
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  18
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  20
   Appendix A.  Acknowledgements . . . . . . . . . . . . . . . . . .  21
   Appendix B.  Document History . . . . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  22

1.  Introduction

   This specification generalizes the metadata format defined by "OpenID
   Connect Discovery 1.0" [OpenID.Discovery] in a way that is compatible
   with OpenID Connect Discovery, while being applicable to a wider set
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