Re: [openpgp] Multi-algo pubkey, or how to create future-proof keys

Stephen Farrell <stephen.farrell@cs.tcd.ie> Mon, 21 June 2021 21:07 UTC

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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/openpgp/rLfd8AI99NpzkCqyiSdY38gIhpU>
Subject: Re: [openpgp] Multi-algo pubkey, or how to create future-proof keys
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Hiya,

(This is just my personal reaction - as chair, if there were
a load of people wanting this now, I'd re-evaluate...)

On 21/06/2021 02:16, Ángel wrote:
> I would like to bring up a point I had noticed some time ago, about
> having multiple public keys combined. A few days ago, we have been
> talking about v5 keys, potential Post-Quantum algorithms, etc.

I think I agree with Werner that this is better one for
later. My particular reasons are that moving from 1 to many
keys isn't so much a crypto change as an architectural one
and that as you point out, such a change if/when it comes, is
likely to be intertwined with PQC (assuming the model of
mixing "classic" and PQ algs seeming to find favour with
e.g. TLS is also sensible for pgp).

Lastly, (and this time looking at, but not quite wearing, a
chair hat:-), I'd prefer see us progress the "easier" work
first and then attempt more ambitious things.

Cheers,
S.