Post #2063088

2026-05-05 17:28 UTC

@delta @Yuvalne @rpgp @protonprivacy @Tutanota This is ultimately based on a new Autocrypt standard which is based on RFC-9580? That doesn't sound very interoperable to me. So a recipient would have to support Autocrypt2 and RFC-9580 (as opposed to LibrePGP). How likely is it that anything else will support that particular combination of standards?

Replies (2)

@delta@chaos.social 2026-05-05 17:30

@upofadown @Yuvalne @rpgp @protonprivacy @Tutanota Autocrypt2 works with any standard v6 implementation. See https://www.ietf.org/archive/id/draft-autocrypt-openpgp-v2-cert-01.html#name-identifying-an-autocrypt-v2 -- in any case, this is exceeding what should be discussed here. Feel free to open an issue on https://codeberg.org/autocrypt2/autocrypt-v2-cert

Open ##2063089
@hko@floss.social 2026-05-05 17:38

@upofadown Schemes based on RFC 9580 are going to be quite interoperable. I'm aware of at least 7 serious independent codebases that implement RFC 9580, and almost as many mature implementations of draft-ietf-openpgp-pqc. Adding autocrypt2 to the mix is a very small additional layer on top of these already widely available building blocks. (And sure, GnuPG is doing its own thing. But that is really not very relevant to Delta Chat or its users.)

Open ##2063090