Re: [quicwg/base-drafts] Server should not accept 1-RTT traffic before handshake completion (#3159)

Kazuho Oku <notifications@github.com> Mon, 28 October 2019 12:25 UTC

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Subject: Re: [quicwg/base-drafts] Server should not accept 1-RTT traffic before handshake completion (#3159)
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> In QUIC, the server may receive 1-RTT packets before the client finished.

While this is true, I wonder if we have the issues you point out, because we prohibit the use of such packets until the server receives Client Finished.

[Section 5.7 of the TLS draft](https://quicwg.org/base-drafts/draft-ietf-quic-tls.html#rfc.section.5.7) states that _a server MUST NOT process data from incoming 1-RTT protected packets before the TLS handshake is complete,_ where "handshake complete" is defined as _when the TLS stack has both sent a Finished message and verified the peer’s Finished message_ ([section 4.1.1](https://quicwg.org/base-drafts/draft-ietf-quic-tls.html#rfc.section.4.1.1)).

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