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Re: [Last-Call] [OAUTH-WG] Last Call: <draft-ietf-oauth-jwt-introspection-response-09.txt> (JWT Response for OAuth Token Introspection) to Proposed Standard

Dick Hardt <dick.hardt@gmail.com> Wed, 26 August 2020 16:52 UTC

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From: Dick Hardt <dick.hardt@gmail.com>
Date: Wed, 26 Aug 2020 09:52:00 -0700
Message-ID: <CAD9ie-vqRVT438_Z1T8Dj29=Ou7BpAHgwNaGs9P-TLdkppJ9Fg@mail.gmail.com>
To: Torsten Lodderstedt <torsten=40lodderstedt.net@dmarc.ietf.org>
Cc: Denis <denis.ietf@free.fr>, last-call@ietf.org, oauth <oauth@ietf.org>
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Subject: Re: [Last-Call] [OAUTH-WG] Last Call: <draft-ietf-oauth-jwt-introspection-response-09.txt> (JWT Response for OAuth Token Introspection) to Proposed Standard
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On Wed, Aug 26, 2020 at 4:37 AM Torsten Lodderstedt <torsten=
40lodderstedt.net@dmarc.ietf.org> wrote:

> Hi Denis,
>
> > On 25. Aug 2020, at 16:55, Denis <denis.ietf@free.fr> wrote:
>
> > The fact that the AS will know exactly when the introspection call has
> been made and thus be able to make sure which client
> > has attempted perform an access to that RS and at which instant of time.
> The use of this call allows an AS to track where and when
> > its clients have indeed presented an issued access token.
>
> That is a fact. I don’t think it is an issue per se. Please explain the
> privacy implications.
>

As I see it, the privacy implication is that the AS knows *when* the client
(and potentially the user) is accessing the RS, which is also an indication
of *when* the user is using the client.

I think including this implication would be important to have in a Privacy
Considerations section.

/Dick
ᐧ

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