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Re: [quicwg/base-drafts] Endpoints cannot verify padding (#4253)

Kazuho Oku <notifications@github.com> Tue, 20 October 2020 01:28 UTC

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Date: Mon, 19 Oct 2020 18:28:53 -0700
From: Kazuho Oku <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Endpoints cannot verify padding (#4253)
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As a step forward, I think we should do the following:
* Regarding the sentence we added in #4183, we should either a) change the rule to "MAY discard UDP datagrams less than 1200 bytes that carry ACK-eliciting Initial apckets", or b) delete the sentence, and
* Considering the fact that there could be other occasions in which we might want to require padding, either within the base drafts, or in some of the extensions, add a note to [section 14](https://quicwg.org/base-drafts/draft-ietf-quic-transport.html#name-datagram-size) or somewhere that datagram size is not authenticated and cannot be enforced by the peer.

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