Re: NSS v3.52 and TLSv1.3's Post-Handshake Authentication -- completion notification?

Martin Thomson <[email protected]> Wed, 8 Jul 2020 12:26:07 +1000
Newsgroups gmane.comp.mozilla.crypto
Message-ID <CAPLxc=WUEUv_ct_Qp4sEAJ1KQfaewv8p8b8vEKBJ2nNjJjfhpg@mail.gmail.com>
On Wed, Jul 8, 2020 at 2:36 AM Daiki Ueno <[email protected]> wrote:
>
> Martin Thomson <[email protected]> writes:
>
> > I think that we considered this when we first landed this code, but
> > deferred adding any callbacks until it was clear what the right answer
> > was.  As you say, you get the callback, but you might not if the
> > request is rejected.
>
> I think that is about the server side.  On the client side, it seems
> even harder to detect the completion, because there will be no
> indication of acceptance until the next application data is sent.

Fair point, but we have never had a way to indicate that you consider
your peer to be authenticated as "X".  It's down to individual
authorization decisions to reflect whatever opinion you have formed.
For instance, a 403 response in HTTP might provide some more
information.
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