Re: [TLS] 0-RTT profiles

Benjamin Kaduk <bkaduk@akamai.com> Mon, 06 August 2018 18:20 UTC

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Date: Mon, 06 Aug 2018 13:20:33 -0500
From: Benjamin Kaduk <bkaduk@akamai.com>
To: Joseph Birr-Pixton <jpixton@gmail.com>
Cc: "<tls@ietf.org>" <tls@ietf.org>
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Subject: Re: [TLS] 0-RTT profiles
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On Mon, Aug 06, 2018 at 07:01:42PM +0100, Joseph Birr-Pixton wrote:
> Hello,
> 
> > Application protocols MUST NOT use 0-RTT data without a profile that defines its use.
> > That profile needs to identify which messages or interactions are safe to use with 0-RTT
> > and how to handle the situation when the server rejects 0-RTT and falls back to 1-RTT.
> 
> 0-RTT has now at least two large deployments on the public internet
> that I know of. Are there any such "profiles" published or being
> worked on?

draft-ietf-httpbis-replay is in the RFC Editor's queue.

-Ben