Re: Working Group Last Call for Using Early Data in HTTP

On Mon, Dec 4, 2017 at 11:53 AM, Victor Vasiliev <vasilvv@google.com> wrote:
> On Fri, Dec 1, 2017 at 2:47 PM, Willy Tarreau <w@1wt.eu> wrote:
>>
>> That's exactly why it's requested that all servers are configured
>> consistently. As you demonstrated, as long as "all of them" is granted
>> regardless of the decision, the processing is safe. What is important
>> is that you can't end up in a situation whose starts with "some servers".
>>
>> Willy
>>
>
> That's what I thought.  But Martin's email makes it sound like there is a
> reason to discard early data when it's received after handshake completion,
> instead of treating it as replay-secure.

If there is a chance that you would have accepted (and processed)
those packets prior to handshake completion, you have an exposure.
This is just a another case of the consistency requirement.

Received on Monday, 4 December 2017 00:58:21 UTC