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RE: The first octet

Mike Bishop <mbishop@evequefou.be> Mon, 06 August 2018 19:57 UTC

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From: Mike Bishop <mbishop@evequefou.be>
To: Martin Thomson <martin.thomson@gmail.com>, Dirkjan Ochtman <dirkjan@ochtman.nl>
CC: QUIC WG <quic@ietf.org>
Subject: RE: The first octet
Thread-Topic: The first octet
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Date: Mon, 06 Aug 2018 19:57:05 +0000
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…but the definition of that version could Very Closely Resemble QUIC v1 (or whatever version we wind up calling this) with a different protocol carried in CRYPTO frames / providing keys.

From: QUIC <quic-bounces@ietf.org> On Behalf Of Martin Thomson
Sent: Monday, August 6, 2018 2:38 AM
To: Dirkjan Ochtman <dirkjan@ochtman.nl>
Cc: QUIC WG <quic@ietf.org>
Subject: Re: The first octet


On Mon, 6 Aug. 2018, 18:10 Dirkjan Ochtman, <dirkjan@ochtman.nl<mailto:dirkjan@ochtman.nl>> wrote:
On Mon, Aug 6, 2018 at 7:56 AM Martin Thomson <martin.thomson@gmail.com<mailto:martin.thomson@gmail.com>> wrote:
For those who read this far, if you have opinions on what principles
should drive this design, please respond here.  If you have a proposed
design (or designs) and can explain the principles that are expressed,
that's OK too.  If this gets enough feedback, I might arrange a call
for interested parties.

I haven't dug deeply into this, but I have been wondering about enabling alternatives to TLS for integrity and confidentiality. Notably, I think the Noise protocol variants are looking very interesting into this space. Assuming that the current stream 0 design makes it possible to somewhat generically swap out TLS for something and that Noise provides the right primitives to fit that conceptual API, it seems reserving some bits in the long header packets might help enable this?

QUIC v1 will use TLS. All the questions I am asking relate specifically to that version. I made it clear in my original email that these are version-specific bits.

A protocol that uses a different cryptographic handle has to use a different version number.

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