Re: [TLS] 0-RTT (Was: Re: 0-RTT and Anti-Replay)

Martin Thomson <martin.thomson@gmail.com> Mon, 13 April 2015 19:30 UTC

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Date: Mon, 13 Apr 2015 12:30:04 -0700
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From: Martin Thomson <martin.thomson@gmail.com>
To: Ilari Liusvaara <ilari.liusvaara@elisanet.fi>
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Subject: Re: [TLS] 0-RTT (Was: Re: 0-RTT and Anti-Replay)
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On 13 April 2015 at 12:17, Ilari Liusvaara <ilari.liusvaara@elisanet.fi>; wrote:
> There are three kinds of ClientHellos:
> 1) Those that attempt resumption (session-id or session-ticket)
> 2) Those that don't (no session-id, no session-ticket).
> 3) Some new type that doesn't currently exist (I presume TLS 1.3 won't
>    add one).
>
> Is attempt to send 0-RTT data allowed with 1)? With 2)?

You assume that 0-RTT doesn't fall into that third category.  I hadn't.