Please note: I have changed the Subject: of the thread to match better the real problem.
During generating the keys on the GnuPG card, one can (and should) create some backup of the secret key into a file. It is totally unclear to me how to make something usefull out of this file, for example import it into a "normal" secret keyring to use it in case of the GnuPG acrd gots lost. I followed some hints of Damien Goutte-Gattat (thanks) and did: > > First, remove the private key stubs: > > > > $ rm ~/.gnupg/private-keys-v1.d/*.key > > > > Then, import your backup: > > > > $ gpg2 --import backup.gpg > > > > You will then be prompted for the passphrase you choose when the backup > > was created. > > I did what you suggested, but: > > $ pwd > /home/guru/.gnupg-test > $ rm -f private-keys-v1.d/*.key > $ GNUPGHOME=/home/guru/.gnupg-test export GNUPGHOME > $ gpg2 --import sk_61F1ECB625C9A6C3.gpg > gpg: key 61F1ECB625C9A6C3: no user ID > gpg: Total number processed: 1 > gpg: secret keys read: 1 > $ ls -l sk_61F1ECB625C9A6C3.gpg > -r-------- 1 guru wheel 1865 May 14 20:29 sk_61F1ECB625C9A6C3.gpg > > the file is what was swritte as backup on May 14. > With Don Google I found this older thread in this mailing list here: https://lists.gt.net/gnupg/users/40851 where Werner said after some (today outdated) hints: «... Put a "disable-scdaemon" into gpg-agent.conf, give gpg-agent a HUP and check that no scdaemon is running anymore (you may just kill it). Then use "gpg --no-use-agent --edit-key". The command "bkuptocard" may then be used to store a backup key on a card. Yes, we really need a howto on recovering smartcard keys. ...» Was such a howto ever written? Thanks matthias -- Matthias Apitz, ✉ g...@unixarea.de, ⌂ http://www.unixarea.de/ ☎ +49-176-38902045 Public GnuPG key: http://www.unixarea.de/key.pub
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