Re: [TLS] Authenticating incompatible protocols

Martin Thomson <mt@lowentropy.net> Fri, 24 July 2020 01:26 UTC

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Date: Fri, 24 Jul 2020 11:26:25 +1000
From: "Martin Thomson" <mt@lowentropy.net>
To: "Ben Schwartz" <bemasc@google.com>
Cc: "<tls@ietf.org>" <tls@ietf.org>
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Subject: Re: [TLS] Authenticating incompatible protocols
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On Thu, Jul 16, 2020, at 06:52, Ben Schwartz wrote:
> Basically, I think this draft should probably either name the scope or 
> be specific to SVCB, to avoid cases where the scope is ambiguous.  
> Naming the scope, and providing a scope identifier meaning "IP and port 
> number", would often be sufficient for secure QUIC upgrade without 
> SVCB, at the cost of some conceptual complexity.

It took me a while to think this through.  tl;dr, I agree with your conclusion.

Written up in a longer form as an issue: https://github.com/martinthomson/snip/issues/1