Subject: [Ace] Fwd: New Version Notification for draft-tiloca-ace-revoked-token-notification-05.txt

From: Marco Tiloca <[email-masked]>
Date: Fri, 16 Jul 2021 14:23:03 +0200

Hello ACE,

We have submitted an updated version of 
draft-tiloca-ace-revoked-token-notification

https://datatracker.ietf.org/doc/html/draft-tiloca-ace-revoked-token-notification-05

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 comments from Michael Richardson [1] over the previous 
version - Thanks a lot!

2) Specifying the optional additional usage of the "pmax" conditional 
attribute from [2].

Comments are very welcome!

Best,
/Marco

[1] https://mailarchive.ietf.org/arch/msg/ace/4eg79d-ekcI--O5zXa3irpHxqrc/

[2] https://datatracker.ietf.org/doc/draft-ietf-core-conditional-attributes/

-------- Forwarded Message --------
Subject: 	New Version Notification for 
draft-tiloca-ace-revoked-token-notification-05.txt
Date: 	Mon, 12 Jul 2021 09:02:41 -0700
From: 	[email-masked]
To: 	Francesca Palombini <[email-masked]>, Grace Lewis 
<[email-masked]>, Ludwig Seitz <[email-masked]>, Marco 
Tiloca <[email-masked]>, Sebastian Echeverria <[email-masked]>

A new version of I-D, draft-tiloca-ace-revoked-token-notification-05.txt
has been successfully submitted by Marco Tiloca and posted to the
IETF repository.

Name: draft-tiloca-ace-revoked-token-notification
Revision: 05
Title: Notification of Revoked Access Tokens in the Authentication and 
Authorization for Constrained Environments (ACE) Framework
Document date: 2021-07-12
Group: Individual Submission
Pages: 35
URL: 
https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Farchive%2Fid%2Fdraft-tiloca-ace-revoked-token-notification-05.txt&amp;data=04%7C01%7Cmarco.tiloca%40ri.se%7C2d021471fe694f16d57708d9454e8eed%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617025969303302%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=ACbXo9gz8jqHJCTvW76YcsKHGLy%2B8SfqrOltqwMmEA8%3D&amp;reserved=0
Status: 
https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-tiloca-ace-revoked-token-notification%2F&amp;data=04%7C01%7Cmarco.tiloca%40ri.se%7C2d021471fe694f16d57708d9454e8eed%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617025969303302%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=VVp%2FQ5FjT6omk0rvPGHOtsdQcoAtk4JSZUtnqnvgb1w%3D&amp;reserved=0
Htmlized: 
https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Fdraft-tiloca-ace-revoked-token-notification&amp;data=04%7C01%7Cmarco.tiloca%40ri.se%7C2d021471fe694f16d57708d9454e8eed%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617025969303302%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=w1gv6UXsCjsMvc6FbQg7c0hMa8VOx0BTmWmqTEboqao%3D&amp;reserved=0
Diff: 
https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Frfcdiff%3Furl2%3Ddraft-tiloca-ace-revoked-token-notification-05&amp;data=04%7C01%7Cmarco.tiloca%40ri.se%7C2d021471fe694f16d57708d9454e8eed%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617025969303302%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=iYNs2cRqNznbQMzyrb6fJPIy9zP82rYoPHouCSmvI2I%3D&amp;reserved=0

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.

The IETF Secretariat