Re: [TLS] Application layer interactions and API guidance

Ilari Liusvaara <ilariliusvaara@welho.com> Sat, 08 October 2016 17:06 UTC

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Date: Sat, 8 Oct 2016 20:06:05 +0300
From: Ilari Liusvaara <ilariliusvaara@welho.com>
To: Eric Rescorla <ekr@rtfm.com>
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Subject: Re: [TLS] Application layer interactions and API guidance
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On Sat, Oct 08, 2016 at 09:22:40AM -0700, Eric Rescorla wrote:
>
> In the APIs people have been designing, 0-RTT can become 1-RTT but not the
> other way around.
> Specifically:
> 
> - There is an option to allow 0-RTT writing
> - With that option on, SSL_Write() succeeds in both 0-RTT and 1-RTT modes.
> - There is a callback that tells you when you have gone from 0-RTT to 1-RTT.

I really hope I misunderstood what you wrote...

I understood it as: The TLS client library notifies the application
that it has transitioned on its own, without instruction from client
application from sending 0-RTT data to server to sending 1-RTT data
to the server???


-Ilari