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-01 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 Travis and further additional input from Jim (thank you both!). 2) Having a single TRL resource at the AS, rather than one per device as in -00. 3) Handling administrators as special requesters. 4) Query of the TRL resource in full mode (all current revoked tokens) or diff mode (just the latest recent updates concerning revoked tokens). 5) Improved security considerations. Comments are very welcome. Best, /Marco [1] https://mailarchive.ietf.org/arch/msg/ace/1UK5QuLh4kmzlH211JBtotdchfQ/ -------- Forwarded Message -------- Subject: New Version Notification for draft-tiloca-ace-revoked-token-notification-01.txt Date: Mon, 09 Mar 2020 12:25:20 -0700 From: internet-dra...@ietf.org To: Grace Lewis <gle...@sei.cmu.edu>, Sebastian Echeverria <sechever...@sei.cmu.edu>, Ludwig Seitz <ludwig.se...@combitech.se>, Francesca Palombini <francesca.palomb...@ericsson.com>, Marco Tiloca <marco.til...@ri.se> A new version of I-D, draft-tiloca-ace-revoked-token-notification-01.txt has been successfully submitted by Marco Tiloca and posted to the IETF repository. Name: draft-tiloca-ace-revoked-token-notification Revision: 01 Title: Notification of Revoked Access Tokens in the Authentication and Authorization for Constrained Environments (ACE) Framework Document date: 2020-03-09 Group: Individual Submission Pages: 16 URL: https://www.ietf.org/internet-drafts/draft-tiloca-ace-revoked-token-notification-01.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-01 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-01 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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