Re: [MLS] MLS: the WG name should include "group"

Daniel Kahn Gillmor <dkg@fifthhorseman.net> Tue, 27 March 2018 21:01 UTC

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From: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
To: Nadim Kobeissi <nadim@symbolic.software>, Suhas Nandakumar <suhasietf@gmail.com>
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Date: Tue, 27 Mar 2018 16:54:56 -0400
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Subject: Re: [MLS] MLS: the WG name should include "group"
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On Sun 2018-03-25 21:33:42 +0200, Nadim Kobeissi wrote:
> I do not believe the name should be changed:
>
> 1. MLS is a protocol that is equally suited for pairwise messaging as it is for group messaging
> 2. The MLS name is elegant and mirrors TLS.

"Mirroring TLS" is exactly what i'm afraid of.  This is a radically
different protocol, performing demonstrably different work at a
different position within the stack, with a different view on what
interoperability even means.

Let's make it very clear that this *is not* TLS, and that it is not a
substitute for TLS.

The protocol described in the documents is *not* equally-suited for
pairwise messaging -- it has a number of subtle features that are
included solely because it is intended to handle group messaging.  As
other people have written upthread, the protocol this nascent WG aims to
describe will handle pairwise messaging as a special case of group
messaging.  It is not designed intentionally for pairwise messaging and
if it were, it would have a different design.

          --dkg