Additional OAuth Parameters for Authorization in Constrained Environments (ACE)
draft-ietf-ace-oauth-params-00

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Last updated 2018-10-08 (latest revision 2018-09-18)
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ACE Working Group                                               L. Seitz
Internet-Draft                                                      RISE
Intended status: Standards Track                      September 18, 2018
Expires: March 22, 2019

      Additional OAuth Parameters for Authorization in Constrained
                           Environments (ACE)
                     draft-ietf-ace-oauth-params-00

Abstract

   This specification defines new parameters for the OAuth 2.0 token and
   introspection endpoints when used with framework for authentication
   and authorization for constrained environments (ACE).  These are used
   to express the desired audience of a requested access token, the
   desired proof-of-possession key, the proof-of-possession key that the
   AS has selected, and the key the RS should use to authenticate to the
   client.

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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   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 22, 2019.

Copyright Notice

   Copyright (c) 2018 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
   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

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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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  Parameters for the Token Endpoint . . . . . . . . . . . . . .   3
     3.1.  Client-to-AS Request  . . . . . . . . . . . . . . . . . .   3
     3.2.  AS-to-Client Response . . . . . . . . . . . . . . . . . .   3
   4.  Parameters for the Introspection Endpoint . . . . . . . . . .   4
     4.1.  AS-to-RS Response . . . . . . . . . . . . . . . . . . . .   4
   5.  Confirmation Method Parameters  . . . . . . . . . . . . . . .   4
   6.  CBOR Mappings . . . . . . . . . . . . . . . . . . . . . . . .   5
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   8.  Privacy Considerations  . . . . . . . . . . . . . . . . . . .   5
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
     9.1.  OAuth Parameter Registration  . . . . . . . . . . . . . .   6
     9.2.  OAuth Introspection Response Parameter Registration . . .   6
   10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   6
   11. Normative References  . . . . . . . . . . . . . . . . . . . .   7
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   The Authorization for the Internet of Things specification
   [I-D.ietf-ace-oauth-authz] requires some new parameters for requests
   and responses to the OAuth 2.0 [RFC6749] token and introspection
   endpoints, as well as some new claims to be used in access tokens.
   This document specifies these new parameters and claims separately
   from the framework, so they can be used and updated independently.

2.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in BCP
   14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

   Readers are assumed to be familiar with the terminology from
   [I-D.ietf-ace-oauth-authz].

   Note that the term "endpoint" is used here following its OAuth 2.0
   [RFC6749] definition, which is to denote resources such as token and
   introspection at the AS and authz-info at the RS.  The CoAP [RFC7252]

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   definition, which is "An entity participating in the CoAP protocol"
   is not used in this specification.
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