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Re: [quicwg/base-drafts] Short header reserved bits: make available for unilateral experimentation (#2022)

MikkelFJ <notifications@github.com> Tue, 20 November 2018 19:58 UTC

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Date: Tue, 20 Nov 2018 19:58:17 +0000
From: MikkelFJ <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Short header reserved bits: make available for unilateral experimentation (#2022)
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I could be wrong. But the receiver first unmasks the header protection, then removes packet protection. The sender first generates all bits in the packet, including all header bits, then applies packet protection. The applies the header protection mask with an XOR.

The current text says the bits are 0. This works. Saying the bits are something else would work equally well.

What will not work is being in doubt about which bits the header protection mask applies to. Some extension could negotiate away the mask on the first CID change or something.

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