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Re: [saag] sntrup761x25519-sha512

Peter Gutmann <pgut001@cs.auckland.ac.nz> Fri, 26 May 2023 06:06 UTC

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From: Peter Gutmann <pgut001@cs.auckland.ac.nz>
To: Tero Kivinen <kivinen@iki.fi>, Eric Rescorla <ekr@rtfm.com>
CC: Simon Josefsson <simon=40josefsson.org@dmarc.ietf.org>, "saag@ietf.org" <saag@ietf.org>
Thread-Topic: [saag] sntrup761x25519-sha512
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Date: Fri, 26 May 2023 06:06:18 +0000
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Subject: Re: [saag] sntrup761x25519-sha512
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Tero Kivinen <kivinen@iki.fi> writes:

>All names having @example.com are free for that organization to allocate as
>they like. I.e. openssh has allocated several protocol names from
>@openssh.com domain.

Some of those are actually de facto standards, for example there are
implementations that either ship with, or whose default configuration is,
"*-etm@openssh.com" and none of the MTI mechanisms covered in the spec, so the
only way you can talk to them is to dig up a vague description of what that
involves from the bottom of a locked filing cabinet stuck in a disused
lavatory with a sign on the door saying "Beware of the Leopard".

The ability to stuff things you've made up yourself into @xyz mechanisms I
think is more of a bug than a feature when you've got something that can set
de facto standards in this way, you end up having to implement it or things
break but there's no RFC to implement it from.

Peter.

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