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Re: [TLS] Simpler backward compatibility rules for 0-RTT

Martin Thomson <martin.thomson@gmail.com> Wed, 22 June 2016 00:45 UTC

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From: Martin Thomson <martin.thomson@gmail.com>
Date: Wed, 22 Jun 2016 10:45:13 +1000
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To: Bill Frantz <frantz@pwpconsult.com>
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Subject: Re: [TLS] Simpler backward compatibility rules for 0-RTT
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On 22 June 2016 at 10:30, Bill Frantz <frantz@pwpconsult.com> wrote:
> Well, it seems like a browser could try TLS 1.3 without 0-RTT first.
>
> If it connects with 1.3 non-0-RTT, then it could mark the host as not
> supporting 0-RTT for a day or so and after that time retry to see if the
> host has been fixed.

Yes, that is an option.  Harder to manage, but certainly possible and
(overall) preferable to falling back to 1.2.

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