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Re: KEYS_READY

"Martin Thomson" <mt@lowentropy.net> Thu, 14 February 2019 22:30 UTC

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Date: Thu, 14 Feb 2019 17:30:30 -0500
From: Martin Thomson <mt@lowentropy.net>
To: David Schinazi <dschinazi.ietf@gmail.com>
Cc: Mike Bishop <mbishop@evequefou.be>, Ryan Hamilton <rch=40google.com@dmarc.ietf.org>, Marten Seemann <martenseemann@gmail.com>, Jana Iyengar <jri.ietf@gmail.com>, Mikkel Fahnøe Jørgensen <mikkelfj@gmail.com>, QUIC WG <quic@ietf.org>
Subject: Re: KEYS_READY
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Archived-At: <https://mailarchive.ietf.org/arch/msg/quic/spARJsp6hKym7xFYGAdAsEzvtpM>
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On Fri, Feb 15, 2019, at 09:02, David Schinazi wrote:
> 
> On Thu, Feb 14, 2019 at 1:02 PM Martin Thomson <mt@lowentropy.net> wrote:
> > Please explain how the two differ, because I'm not seeing a difference.
> 
> Here's the difference between them as I understand it:
> 
> I'd initially assumed KEYS_READY meant that the keys were installed - 
> meaning that you send KEYS_READY when your keys are installed. But not 
> quite! The server does not send KEYS_READY when the 1-RTT keys are 
> installed, it sends it when it believes the handshake is done. So now 
> you have a notion of keys being ready that is impacted by parts of the 
> protocol further away.
> 
> RETIRE_KEYS just means that you're done sending with a set of keys - so 
> you send it when you have received ACKs for everything you cared about 
> sending with those keys. I find that a lot more easier to reason about.

Take another look at the PR and see if you can spot the difference.  You will find that maybe you are just arguing for a name change here.

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