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Re: [Secdispatch] EDHOC Summary

Carsten Bormann <cabo@tzi.org> Fri, 12 April 2019 02:35 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Fri, 12 Apr 2019 04:34:55 +0200
Cc: Göran Selander <goran.selander@ericsson.com>, Richard Barnes <rlb@ipv.sx>, Michael Richardson <mcr+ietf@sandelman.ca>, "secdispatch@ietf.org" <secdispatch@ietf.org>, Martin Thomson <mt@lowentropy.net>
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To: Tero Kivinen <kivinen@iki.fi>
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Subject: Re: [Secdispatch] EDHOC Summary
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On Apr 12, 2019, at 02:08, Tero Kivinen <kivinen@iki.fi> wrote:
> 
> it could be done by just [doing something contorted].

Sure, it could be (we have a lot of experience with header compression).
(It is actually the only way to claim that we are “doing TLS”, as opposed to a new thing that just happens to be TLS-branded as well).

But if that were the way forward, we would do compressed JSON over compressed HTTP over compressed TCP over compressed IP.  (Actually, we *are* compressing IP, because a concise IP would be a nonstarter…)

Some people are actually using heavy compression in their stacks (hey, we just registered a deflated JSON Content-Format for CoAP!).  But generally:

   Concise wins over compressed.

Grüße, Carsten

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