Token Revocation
draft-ietf-oauth-revocation-04

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Last updated 2013-01-07
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OAuth Working Group                                  T. Lodderstedt, Ed.
Internet-Draft                                       Deutsche Telekom AG
Intended status: Standards Track                               S. Dronia
Expires: July 11, 2013
                                                           M. Scurtescu
                                                                  Google
                                                         January 7, 2013

                            Token Revocation
                     draft-ietf-oauth-revocation-04

Abstract

   This document proposes an additional endpoint for OAuth authorization
   servers, which allows clients to notify the authorization server that
   a previously obtained refresh or access token is no longer needed.
   This allows the authorization server to cleanup security credentials.
   A revocation request will invalidate the actual token and, if
   applicable, other tokens based on the same authorization.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of this Memo

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

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   This Internet-Draft will expire on July 11, 2013.

Copyright Notice

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

Lodderstedt, et al.       Expires July 11, 2013                 [Page 1]
Internet-Draft              Token Revocation                January 2013

   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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  Token Revocation  . . . . . . . . . . . . . . . . . . . . . . . 3
     2.1.  Cross-Origin Support  . . . . . . . . . . . . . . . . . . . 5
   3.  Implementation Note . . . . . . . . . . . . . . . . . . . . . . 5
   4.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . . . 6
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 7
     7.1.  Normative References  . . . . . . . . . . . . . . . . . . . 7
     7.2.  Informative References  . . . . . . . . . . . . . . . . . . 7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . . . 8

Lodderstedt, et al.       Expires July 11, 2013                 [Page 2]
Internet-Draft              Token Revocation                January 2013

1.  Introduction

   The OAuth 2.0 core specification [RFC6749] defines several ways for a
   client to obtain refresh and access tokens.  This specification
   supplements the core specification with a mechanism to revoke both
   types of tokens.  A token is a string representing an authorization
   issued by the resource owner to the client.  A revocation request
   will invalidate the actual token and, if applicable, other tokens
   based on the same authorization and the authorization itself.

   From an end-user's perspective, OAuth is often used to log into a
   certain site or app.  This revocation mechanism allows a client to
   invalidate its tokens if the end-user logs out, changes identity, or
   uninstalls the respective app.  Notifying the authorization server
   that the token is no longer needed allows the authorization server to
   clean up data associated with that token (e.g. session data) and the
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