JWT Response for OAuth Token Introspection
draft-ietf-oauth-jwt-introspection-response-09
Open Authentication Protocol T. Lodderstedt, Ed.
Internet-Draft yes.com AG
Intended status: Standards Track V. Dzhuvinov
Expires: October 27, 2020 Connect2id Ltd.
April 25, 2020
JWT Response for OAuth Token Introspection
draft-ietf-oauth-jwt-introspection-response-09
Abstract
This specification proposes an additional JSON Web Token (JWT)
secured response for OAuth 2.0 Token Introspection.
Status of This Memo
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Lodderstedt & Dzhuvinov Expires October 27, 2020 [Page 1]
Internet-Draft JWT Response April 2020
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Requirements Notation and Conventions . . . . . . . . . . . . 3
3. Resource Server Management . . . . . . . . . . . . . . . . . 3
4. Requesting a JWT Response . . . . . . . . . . . . . . . . . . 4
5. JWT Response . . . . . . . . . . . . . . . . . . . . . . . . 4
6. Client Metadata . . . . . . . . . . . . . . . . . . . . . . . 7
7. Authorization Server Metadata . . . . . . . . . . . . . . . . 8
8. Security Considerations . . . . . . . . . . . . . . . . . . . 9
8.1. Cross-JWT Confusion . . . . . . . . . . . . . . . . . . . 9
8.2. Token Data Leakage . . . . . . . . . . . . . . . . . . . 9
8.3. Keeping Token Data Confidential from OAuth Clients . . . 10
8.4. Logging and Audit of Introspection Activity . . . . . . . 10
9. Privacy Considerations . . . . . . . . . . . . . . . . . . . 10
10. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 10
11. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
11.1. OAuth Dynamic Client Registration Metadata Registration 11
11.1.1. Registry Contents . . . . . . . . . . . . . . . . . 11
11.2. OAuth Authorization Server Metadata Registration . . . . 11
11.2.1. Registry Contents . . . . . . . . . . . . . . . . . 12
11.3. Media Type Registration . . . . . . . . . . . . . . . . 12
11.3.1. Registry Contents . . . . . . . . . . . . . . . . . 12
11.4. JWT Claim Registration . . . . . . . . . . . . . . . . . 13
11.4.1. Registry Contents . . . . . . . . . . . . . . . . . 13
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 14
12.1. Normative References . . . . . . . . . . . . . . . . . . 14
12.2. Informative References . . . . . . . . . . . . . . . . . 15
Appendix A. Document History . . . . . . . . . . . . . . . . . . 16
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 18
1. Introduction
OAuth 2.0 Token Introspection [RFC7662] specifies a method for a
protected resource to query an OAuth 2.0 authorization server to
determine the state of an access token and obtain data associated
with the access token. This enables deployments to implement opaque
access tokens in an interoperable way.
The introspection response, as specified in OAuth 2.0 Token
Introspection [RFC7662], is a plain JSON object. However, there are
use cases where the resource server requires stronger assurance that
the authorization server issued the token introspection response for
an access token, including cases where the authorization server
assumes liability for the content of the token introspection
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