Re: Questions regarding the handshake sequence

[Martin Thomson <[e-mail]>]

Hmm, yes, that could be clearer.  Does this help?

https://github.com/quicwg/base-drafts/pull/1368
On Tue, May 22, 2018 at 7:31 PM Magnus Westerlund <
[e-mail]> wrote:

> Hi,

> Reviewing the transport draft -11 I get a bit confused about what
> possible combination of packets type that can occur during the
> handshaking. Thus, I would appreciate some clarifications.

> First a sequence with a HelloRetryRequest

> C -> S: Initial PN=0, ClientHello

> S-> C: Retry Packet PN=0, HelloRetryRequest, ACK (0)

> C -> s: Initial PN=1, ClientHello

> S -> C: Handshake Packet PN=0, ServerHello, ACK (0,1)

> C -> S: ? PN=2, Client Finished, Data Frame, ACK (0)

> So in this sequence, in what type of packet is the client sending its
> Client Finished message?

> Secondly, In the Handshake packet, is the server using PN=0 again. Spec
> text appear to indicate that, but I get uncertain.

> And I understand correctly this is also a valid sequence:

> C -> S: Initial PN=0, ClientHello

> S -> C: Handshake Packet PN=0, ServerHello, ACK (0)

> C-> S: ? PN=1, Client Finished, Data frame, ACK(0)

> Also here, it is unclear which packet type the client uses in its second
> message.

> Cheers

> Magnus Westerlund

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