Re: [quicwg/base-drafts] Can a client send 0-RTT data when receiving Retry? (#1507)

Martin Thomson <notifications@github.com> Mon, 02 July 2018 04:19 UTC

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Subject: Re: [quicwg/base-drafts] Can a client send 0-RTT data when receiving Retry? (#1507)
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The point is that if the handshake is successful, then the ClientHello and all the 0-RTT have the same destination connection ID, so they probably end up at the same point.  Add Retry and they might not.

I think that the TLS analogy is fine.  In TLS, a server could want a different key share, but find the PSK perfectly adequate for the purposes of 0-RTT.  There's no reason a server that sends HelloRetryRequest would need to stop accepting 0-RTT.

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