Authentication and Authorization for Constrained Environments (ACE) using the OAuth 2.0 Framework (ACE-OAuth)
draft-ietf-ace-oauth-authz-13
ACE Working Group L. Seitz
Internet-Draft RISE SICS
Intended status: Standards Track G. Selander
Expires: January 3, 2019 Ericsson
E. Wahlstroem
S. Erdtman
Spotify AB
H. Tschofenig
Arm Ltd.
July 2, 2018
Authentication and Authorization for Constrained Environments (ACE)
using the OAuth 2.0 Framework (ACE-OAuth)
draft-ietf-ace-oauth-authz-13
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 CoAP, thus making a well-known and widely used
authorization solution suitable for IoT devices. Existing
specifications are used where possible, but where the constraints of
IoT devices require it, extensions are added and profiles are
defined.
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-
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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 January 3, 2019.
Seitz, et al. Expires January 3, 2019 [Page 1]
Internet-Draft ACE-OAuth July 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1. OAuth 2.0 . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2. CoAP . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4. Protocol Interactions . . . . . . . . . . . . . . . . . . . . 10
5. Framework . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.1. Discovering Authorization Servers . . . . . . . . . . . . 15
5.1.1. Unauthorized Resource Request Message . . . . . . . . 15
5.1.2. AS Information . . . . . . . . . . . . . . . . . . . 16
5.2. Authorization Grants . . . . . . . . . . . . . . . . . . 17
5.3. Client Credentials . . . . . . . . . . . . . . . . . . . 17
5.4. AS Authentication . . . . . . . . . . . . . . . . . . . . 18
5.5. The Authorization Endpoint . . . . . . . . . . . . . . . 18
5.6. The Token Endpoint . . . . . . . . . . . . . . . . . . . 18
5.6.1. Client-to-AS Request . . . . . . . . . . . . . . . . 19
5.6.2. AS-to-Client Response . . . . . . . . . . . . . . . . 22
5.6.3. Error Response . . . . . . . . . . . . . . . . . . . 24
5.6.4. Request and Response Parameters . . . . . . . . . . . 25
5.6.4.1. Audience . . . . . . . . . . . . . . . . . . . . 25
5.6.4.2. Grant Type . . . . . . . . . . . . . . . . . . . 25
5.6.4.3. Token Type . . . . . . . . . . . . . . . . . . . 26
5.6.4.4. Profile . . . . . . . . . . . . . . . . . . . . . 26
5.6.4.5. Confirmation . . . . . . . . . . . . . . . . . . 27
5.6.5. Mapping Parameters to CBOR . . . . . . . . . . . . . 27
5.7. The 'Introspect' Endpoint . . . . . . . . . . . . . . . . 28
5.7.1. RS-to-AS Request . . . . . . . . . . . . . . . . . . 29
5.7.2. AS-to-RS Response . . . . . . . . . . . . . . . . . . 30
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