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Re: [quicwg/base-drafts] Client's initial destination CID is unauthenticated (#1486)

MikkelFJ <notifications@github.com> Tue, 10 July 2018 06:47 UTC

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Subject: Re: [quicwg/base-drafts] Client's initial destination CID is unauthenticated (#1486)
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> Ok, but if you make initial secret (or ODCID) a part of AD for 1-rtt encryption, ...

That already happens because the handshake needed to construct the clients 1-RTT key is protected by the servers initial secret. If the servers initial secret is not based on the correct ODCID, the client cannot proceed.

The surfer of the clients initial packet can be manipulated, likel header flags, but the TLS layer eventually verifies the clients TP too.

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