How can I use GnuPG with ECDSA keys?

Question

I'd like to generate an ECDSA (rather than RSA, DSA, or ElGamal) key using GnuPG, and use it as I might otherwise use an OpenPGP-compatible master key. I've read that gpg2has support for ECDSA keys, but I haven't been able to use that functionality. What am I missing?

myroslav · Answer 1 · 2023-09-28T10:42:52.710

6

GnuPG 2.1.x does support ECC (including Ed25519); for more info (and examples), see https://www.gnupg.org/faq/whats-new-in-2.1.html#ecc.

FYI, you must add the --expert option to reveal the new options.

edited Sep 28 '23 at 10:42

answered Apr 15 '16 at 16:58

myroslav

311

score 1 · Answer 2 · answered Sep 22 '13 at 06:48

Neither GPG 1.4.x nor GPG 2.0.x currently support ECC or ECDSA keys. Werner has been working on it for the highly developmental 2.1.x releases, but that's nowhere near ready for production use. Elliptic Curve may be backported to the current stable releases in the future, but there is no timeframe on that.

How can I use GnuPG with ECDSA keys?

2 Answers2