Re: [openpgp] Subkeys of Subkeys
Justus Winter <justus@sequoia-pgp.org> Tue, 21 September 2021 11:35 UTC
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From: Justus Winter <justus@sequoia-pgp.org>
To: Paul Schaub <vanitasvitae@fsfe.org>, openpgp@ietf.org
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Date: Tue, 21 Sep 2021 13:35:00 +0200
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Subject: Re: [openpgp] Subkeys of Subkeys
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Hi Paul :) Paul Schaub <vanitasvitae@fsfe.org> writes: > Allowing for such constructions would be interesting for per-device > keys in multi-device settings: Yes, we'd like to improve multi-device support using per-device keys as well. > I see no obvious issues which might prevent this, apart from the > ambiguous definition quoted above. > Has anyone already experimented with such constructions? If so, did you > encounter any issues which would need to be taken into consideration? We considered it, and I talk (see [0] and [1]) about that in the context of bringing forward-secrecy to OpenPGP (see also [2] if you are into that). We have also constructed a test vector [3], but unsurprisingly, no implementation supports that [4]. 0: https://sequoia-pgp.org/talks/2018-08-moving-forward/moving-forward.pdf 1: https://www.youtube.com/watch?v=an6oYjikAPY 2: https://gitlab.com/sequoia-pgp/openpgp-dr/-/tree/wip-openpgp 3: https://gitlab.com/sequoia-pgp/weird-keys#cert-subkeyspgp 4: https://gitlab.com/sequoia-pgp/weird-keys#results Justus
- [openpgp] Subkeys of Subkeys Paul Schaub
- Re: [openpgp] Subkeys of Subkeys Justus Winter
- Re: [openpgp] Subkeys of Subkeys Paul Schaub