Re: [quicwg/base-drafts] TLS provides AEAD and KDF (#2046)

Martin Thomson <notifications@github.com> Tue, 27 November 2018 03:19 UTC

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Subject: Re: [quicwg/base-drafts] TLS provides AEAD and KDF (#2046)
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martinthomson commented on this pull request.



> @@ -753,9 +770,8 @@ thus ensuring that the keys are different for each version of QUIC. This
 prevents a middlebox that only recognizes one version of QUIC from seeing or
 modifying the contents of handshake packets from future versions.
 
-The HKDF function defined in TLS 1.3 MUST be used even in case the minimum TLS
-version that the endpoint is willing to use is greater, so as to assure that
-the peer can decrypt the packet.
+The HKDF-Expand-Label function defined in TLS 1.3 MUST be used for Initial

Yeah, I considered that, but it's a long slide down that slope.  I think that it's sufficiently strongly implied.

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