Authentication and Authorization for Constrained Environments (ACE) using the OAuth 2.0 Framework (ACE-OAuth)
draft-ietf-ace-oauth-authz-31
ACE Working Group L. Seitz
Internet-Draft Combitech
Intended status: Standards Track G. Selander
Expires: July 21, 2020 Ericsson
E. Wahlstroem
S. Erdtman
Spotify AB
H. Tschofenig
Arm Ltd.
January 18, 2020
Authentication and Authorization for Constrained Environments (ACE)
using the OAuth 2.0 Framework (ACE-OAuth)
draft-ietf-ace-oauth-authz-31
Abstract
This specification defines a framework for authentication and
authorization in Internet of Things (IoT) environments called ACE-
OAuth. The framework is based on a set of building blocks including
OAuth 2.0 and the Constrained Application Protocol (CoAP), thus
transforming a well-known and widely used authorization solution into
a form suitable for IoT devices. Existing specifications are used
where possible, but extensions are added and profiles are defined to
better serve the IoT use cases.
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
working documents as Internet-Drafts. The list of current Internet-
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 July 21, 2020.
Seitz, et al. Expires July 21, 2020 [Page 1]
Internet-Draft ACE-OAuth January 2020
Copyright Notice
Copyright (c) 2020 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
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.1. OAuth 2.0 . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2. CoAP . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4. Protocol Interactions . . . . . . . . . . . . . . . . . . . . 11
5. Framework . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1. Discovering Authorization Servers . . . . . . . . . . . . 16
5.1.1. Unauthorized Resource Request Message . . . . . . . . 16
5.1.2. AS Request Creation Hints . . . . . . . . . . . . . . 17
5.1.2.1. The Client-Nonce Parameter . . . . . . . . . . . 19
5.2. Authorization Grants . . . . . . . . . . . . . . . . . . 20
5.3. Client Credentials . . . . . . . . . . . . . . . . . . . 20
5.4. AS Authentication . . . . . . . . . . . . . . . . . . . . 21
5.5. The Authorization Endpoint . . . . . . . . . . . . . . . 21
5.6. The Token Endpoint . . . . . . . . . . . . . . . . . . . 21
5.6.1. Client-to-AS Request . . . . . . . . . . . . . . . . 22
5.6.2. AS-to-Client Response . . . . . . . . . . . . . . . . 25
5.6.3. Error Response . . . . . . . . . . . . . . . . . . . 27
5.6.4. Request and Response Parameters . . . . . . . . . . . 28
5.6.4.1. Grant Type . . . . . . . . . . . . . . . . . . . 28
5.6.4.2. Token Type . . . . . . . . . . . . . . . . . . . 29
5.6.4.3. Profile . . . . . . . . . . . . . . . . . . . . . 29
5.6.4.4. Client-Nonce . . . . . . . . . . . . . . . . . . 30
5.6.5. Mapping Parameters to CBOR . . . . . . . . . . . . . 30
5.7. The Introspection Endpoint . . . . . . . . . . . . . . . 31
5.7.1. Introspection Request . . . . . . . . . . . . . . . . 32
Show full document text