On Sun, 11 May 2025 12:08, Nick said: > Is it because --list-keys shows 0 for signed keys?
You are using "gpg --list-keys" (aka "gpg -k") this lists OpenPGP keys and not S/MIME (i.e. X.509) keys. For that you need to run "gpgsm --list-keys" (or "gpgsm -k"). However, if you want to use a key for signing you need the private (secret) key and thus it is better to use gpgsm --list-secret-keys or shorter gpgsm -K (note the capital 'K'). This lists only keys/certificates for which you have the private (secret) key. > gpgsm: can't sign using '[email protected] <mailto:[email protected]>': No > public key The error message might be confusing, as it should show "no secret key" but in your case it seems that you don't vene have the public key for "[email protected]". BTW, having mailto: as part of the mail address in angle brackets is not the best idea: For gpg any many other tools this looks like the real mail address is "mailto:[email protected]"; and not "[email protected]". Shalom-Salam, Werner -- The pioneers of a warless world are the youth that refuse military service. - A. Einstein
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