Hello ACE, We have submitted an updated version of draft-tiloca-ace-revoked-token-notification
https://tools.ietf.org/html/draft-tiloca-ace-revoked-token-notification-02 The document describes how an Authorization Server can notify Clients and Resource Servers of revoked but yet not expired Access Tokens. This is achieved by means of a Token Revocation List (TRL) resource at the AS, that a device can access and observe by using resource observation for CoAP. The approach complements token introspection at the AS, and does not require additional endpoints on Clients and Resource Servers. This update is especially about: 1) Addressing the review at [1] from Carsten and additional input from Ben during the latest interim (thank you both!). 2) Clarifications and examples on how the token hash is built. 3) Simplified interface and payload format for the diff query mode. 4) Building on Carsten's suggestion and Ben's input, the new Appendix A and Appendix B describing how to use the Series Transfer Pattern [2] to further improve the diff query mode. Comments are very welcome. Best, /Marco [1] https://mailarchive.ietf.org/arch/msg/ace/ZoEJ6DulqJQcaMRrOdGkmbeFwwk/ [2] https://tools.ietf.org/html/draft-bormann-t2trg-stp -------- Forwarded Message -------- Subject: New Version Notification for draft-tiloca-ace-revoked-token-notification-02.txt Date: Mon, 13 Jul 2020 10:31:05 -0700 From: [email protected] To: Sebastian Echeverria <[email protected]>, Ludwig Seitz <[email protected]>, Francesca Palombini <[email protected]>, Marco Tiloca <[email protected]>, Grace Lewis <[email protected]> A new version of I-D, draft-tiloca-ace-revoked-token-notification-02.txt has been successfully submitted by Marco Tiloca and posted to the IETF repository. Name: draft-tiloca-ace-revoked-token-notification Revision: 02 Title: Notification of Revoked Access Tokens in the Authentication and Authorization for Constrained Environments (ACE) Framework Document date: 2020-07-13 Group: Individual Submission Pages: 24 URL: https://www.ietf.org/internet-drafts/draft-tiloca-ace-revoked-token-notification-02.txt Status: https://datatracker.ietf.org/doc/draft-tiloca-ace-revoked-token-notification/ Htmlized: https://tools.ietf.org/html/draft-tiloca-ace-revoked-token-notification-02 Htmlized: https://datatracker.ietf.org/doc/html/draft-tiloca-ace-revoked-token-notification Diff: https://www.ietf.org/rfcdiff?url2=draft-tiloca-ace-revoked-token-notification-02 Abstract: This document specifies a method of the Authentication and Authorization for Constrained Environments (ACE) framework, which allows an Authorization Server to notify Clients and Resource Servers (i.e., registered devices) about revoked Access Tokens. The method relies on resource observation for the Constrained Application Protocol (CoAP), with Clients and Resource Servers observing a Token Revocation List on the Authorization Server. Resulting unsolicited notifications of revoked Access Tokens complement alternative approaches such as token introspection, while not requiring additional endpoints on Clients and Resource Servers. Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. The IETF Secretariat
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