Re: [TLS] TLS Opaque

"Scott Fluhrer (sfluhrer)" <sfluhrer@cisco.com> Thu, 01 April 2021 13:08 UTC

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From: "Scott Fluhrer (sfluhrer)" <sfluhrer@cisco.com>
To: Rob Sayre <sayrer@gmail.com>, Joseph Salowey <joe@salowey.net>
CC: "<tls@ietf.org>" <tls@ietf.org>
Thread-Topic: [TLS] TLS Opaque
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Date: Thu, 1 Apr 2021 13:08:22 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tls/6jvNPvAhOo6FgmN9ct2ZPTYm0Lw>
Subject: Re: [TLS] TLS Opaque
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On Tue, Mar 30, 2021 at 9:39 PM Joseph Salowey <joe@salowey.net<mailto:joe@salowey.net>> wrote:

There is at least one question on the list that has gone unanswered for some time [1].

[1] https://mailarchive.ietf.org/arch/msg/tls/yCBYp10QuYPSu5zOoM3v84SAIZE/

I've found most of the OPAQUE drafts are pretty confusing / incorrect / or typo'd when it comes to lines like these. Describing these calculations seems difficult in ASCII, so I don't fault anyone for making mistakes here. The authors have also been pretty responsive in adding test vectors and such.

If the answer is “it’s a typo”, that’s fine – I agree that RFCs are a horrid format for expressing equations.  However, it would be good if there were to state what is the correct relationship here (and possibly update the draft with the corrected versions)