Re: [quicwg/base-drafts] Added a word of caution before abandoning Initial packets (#3416)

Christian Huitema <> Wed, 05 February 2020 15:04 UTC

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Subject: Re: [quicwg/base-drafts] Added a word of caution before abandoning Initial packets (#3416)
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huitema commented on this pull request.

> @@ -3700,7 +3700,9 @@ when it receives its first Handshake packet.  Though packets might still be in
 flight or awaiting acknowledgment, no further Initial packets need to be
 exchanged beyond this point.  Initial packet protection keys are discarded (see
 Section 4.10 of {{QUIC-TLS}}) along with any loss recovery and congestion
-control state (see Sections and 6.9 of {{QUIC-RECOVERY}}).
+control state (see Sections and 6.9 of {{QUIC-RECOVERY}}). This is safe
+because of the additional safeguards against loss of Handshake packets in

The peer having Handshake keys is not sufficient. The peer also needs to ensure that packets are repeated.

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