Re: [quicwg/base-drafts] Single Packet Number Space (#1591)

Mike Bishop <notifications@github.com> Fri, 27 July 2018 20:33 UTC

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Subject: Re: [quicwg/base-drafts] Single Packet Number Space (#1591)
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What happens when you receive, in a Handshake packet, an ACK for an Initial packet you never sent?  If you blow up, it becomes trivial to inject a packet and make the handshake fail.  If you don't, then the receiver will discard your packet with the same packet number because it has already received that number.

However, I think the first piece is true regardless of packet number spaces -- someone who sent additional Initial packets with your CID can cause your handshake to fail in interesting and novel ways.

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