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Re: [TLS] 0-RTT, server Application Data, and client Finished

Martin Thomson <martin.thomson@gmail.com> Wed, 27 January 2016 17:45 UTC

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Date: Thu, 28 Jan 2016 04:45:00 +1100
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From: Martin Thomson <martin.thomson@gmail.com>
To: Watson Ladd <watsonbladd@gmail.com>
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Subject: Re: [TLS] 0-RTT, server Application Data, and client Finished
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On 28 January 2016 at 02:09, Watson Ladd <watsonbladd@gmail.com> wrote:
> All 0-RTT data is replayable, but I don't see what replaying a
> authenticated replayable connection gets you.

If the 0-RTT flight includes actions (especially non-idempotent ones)
that only apply if the authentication is correct, then you get
authenticated replayable actions.

e.g., "please pay Watson $10, my certificate authenticates this request"

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