Re: [OAUTH-WG] Last call review of draft-ietf-oauth-dyn-reg-10

Derek Atkins <derek@ihtfp.com> Tue, 04 June 2013 02:42 UTC

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From: Derek Atkins <derek@ihtfp.com>
To: Justin Richer <jricher@mitre.org>
References: <85AA2C66-108B-4276-92EE-2D7566E54990@oracle.com> <6AF52CCD-4D6B-4696-8465-3345FFFDBE9C@mitre.org> <A1F47E63-DFE6-41A2-9F91-2DB44091D94C@oracle.com> <8EFC7565-0E81-4688-9AEB-459E7503F609@mitre.org> <6D11C230-31F6-4206-8F29-B1F2BFB5C17E@oracle.com> <519652C9.5010303@mitre.org>
Date: Mon, 03 Jun 2013 22:00:32 -0400
In-Reply-To: <519652C9.5010303@mitre.org> (Justin Richer's message of "Fri, 17 May 2013 11:54:49 -0400")
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Cc: "oauth@ietf.org WG" <oauth@ietf.org>
Subject: Re: [OAUTH-WG] Last call review of draft-ietf-oauth-dyn-reg-10
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Justin Richer <jricher@mitre.org> writes:

>     I think the concern here is that rotation of client credential is not
>     something discussed before. Before we put it in the spec we should
>     consider the reasons for doing it and what problems it solves.
>
> The client doesn't get to choose when its credentials get rotated. It used to
> be able to, but now it's purely the server's choice, including whether or not
> it wants to rotate things at all. I think this confusion can be cleared up
> with the explicit lifecycle discussion getting pulled out into one place.

>From a security standpoint, either side should be able to rotate keys.
It should not be only one side's choice; either side should have the
option to refresh due to local policy (or worse, local knowledge of an
issue).

-derek
-- 
       Derek Atkins                 617-623-3745
       derek@ihtfp.com             www.ihtfp.com
       Computer and Internet Security Consultant