Re: [TLS] Negotiating with known_configuration

Ilari Liusvaara <ilari.liusvaara@elisanet.fi> Tue, 21 July 2015 15:17 UTC

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Date: Tue, 21 Jul 2015 18:17:49 +0300
From: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
To: Eric Rescorla <ekr@rtfm.com>
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Subject: Re: [TLS] Negotiating with known_configuration
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On Tue, Jul 21, 2015 at 05:09:31PM +0200, Eric Rescorla wrote:
> On Tue, Jul 21, 2015 at 4:15 PM, Ilari Liusvaara <
> ilari.liusvaara@elisanet.fi> wrote:
> >
> > Also, with regard to ending 0RTT, even without encrypted content
> > types. Either I am misunderstanding something, or:
> >
> > - Client: Send ClientHello.
> > - Server: Read ClientHello.
> > - Client: Send 0-RTT & client cert.
> > - Server: Read 0-RTT & client cert.
> > - Client: Wait for server reply.
> > - Server: Wait for handshake message to end 0-RTT.
> > *deadlock*.
> 
> 
> Is this the case where the server is accepting 0-RTT or  rejecting it?

Apparently, only for accepting case.

(If the server rejects, it can reply immediately, avoiding this
deadlock).


-Ilari