Re: [quicwg/base-drafts] Which DCID determines Initial keys (#3862)

Jana Iyengar <> Tue, 14 July 2020 06:30 UTC

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Date: Mon, 13 Jul 2020 23:30:35 -0700
From: Jana Iyengar <>
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Subject: Re: [quicwg/base-drafts] Which DCID determines Initial keys (#3862)
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@janaiyengar commented on this pull request.

> +The Destination Connection ID field from the first Initial packet sent by a
+client is used to determine packet protection keys for Initial packets.  These
+keys change after receiving a Retry packet; see Section 5.2 of {{QUIC-TLS}}.

I'm fine with the reference, but if there's any question, then being explicit doesn't hurt. I'm fine either way. Separately, I noticed that Sec 5.2 in TLS says "the Initial packet". That should be "the first Initial packet from the client".

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