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Re: [TLS] Draft 18 review : 0-RTT

Olivier Levillain <olivier.levillain@ssi.gouv.fr> Wed, 23 November 2016 08:53 UTC

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To: Martin Thomson <martin.thomson@gmail.com>
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From: Olivier Levillain <olivier.levillain@ssi.gouv.fr>
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Date: Wed, 23 Nov 2016 09:53:31 +0100
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Subject: Re: [TLS] Draft 18 review : 0-RTT
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Le 23/11/2016 01:28, Martin Thomson a écrit :
> On 23 November 2016 at 06:07, Olivier Levillain
> <olivier.levillain@ssi.gouv.fr> wrote:
>> In 4.2.8 (P.47), the server receiving early_data "can behave in one of
>> two ways"... followed by three cases.  Beside the typo, the first case
>> could be phrased differently.  Actually, it reads
>>
>>    -  Ignore the extension and return no response.  This indicates that
>>       the server has ignored any early data and an ordinary 1-RTT
>>       handshake is required.
>>
>> Since an ordinary 1-RTT handshake will require the server to actually
>> send a response (the ServerHello), it might be better to put it this
>> way:
>>
>>    -  Ignore the extension and return a standard 1-RTT ServerHello.
>>       This indicates that the server has ignored any early data and
>>       an ordinary 1-RTT handshake is required.
> Here's a PR: https://github.com/tlswg/tls13-spec/pull/773
>
> I've gone a little bit further than what Olivier suggests and pointed
> out in each of these that the server is required to ignore early data.

Thank you for the rewrite.

olivier

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