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Re: [quicwg/base-drafts] Rework Key Update (#2237)

Kazuho Oku <notifications@github.com> Fri, 21 December 2018 05:38 UTC

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Subject: Re: [quicwg/base-drafts] Rework Key Update (#2237)
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@martinthomson 
> As a practical matter, spending the two bits on epoch gives us more flexibility. You could, if you wanted, have multiple updates in flight with two bits (up to 3 updates then). If you echo a bit, you do fix the bug, but get less out of it.

I agree. OTOH, assuming that we wouldn't be updating the keys too often, I would prefer the least complex approach on solving the issue (when spending enough amount of bits). And to me it seems that having an explicit signal that indicates that the peer has received the key update might be the simplest.

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