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Re: [TLS] Remove DH-based 0-RTT

Martin Thomson <martin.thomson@gmail.com> Wed, 24 February 2016 17:04 UTC

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Date: Wed, 24 Feb 2016 09:04:39 -0800
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From: Martin Thomson <martin.thomson@gmail.com>
To: Watson Ladd <watsonbladd@gmail.com>
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Subject: Re: [TLS] Remove DH-based 0-RTT
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On 24 February 2016 at 08:34, Watson Ladd <watsonbladd@gmail.com> wrote:
> And if we require a DH+sign every resumption, we don't gain anything
> over the full exchange except 0-RTT. Why is this server liveness issue
> not considered a problem for TLS 1.2 resumption?


It wouldn't be a requirement, merely an option.

In 1.2, resumption and false start have the same latency profile.
Here, resumption will be faster.

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