Quote from: FenderGuitarMan on July 23, 2012, 05:57 pmThe problem is I have come across a seller that doesn't work. I have imported his/her key successfully into the GPG Keychain. I see it in the list of available keys. But when I select text in the editor and select encrypt selection that seller's public key is not in the list. This is happening with just this one seller. All the other keys work fine. The imports and seems to be valid. I haven't yet tried this on the command line. I'd have to do some digging to learn how. I'm a pretty technical guy and comfortable with BASH shell but I am not familiar enough with Open PGP to know how to do this without more research.The GPG command line is your friend.To check if their key is really in your keyring:gpg -k [keyID|UID]If it is, save the file you want to encrypt to a text file (ideally in an encrypted volume without a journaling filesystem):gpg -ea -r their_key_ID -r your_key_ID filename.txtTo do the same, but hide your key as a recipient:gpg -ea -r their_key_ID -R your_key_ID filename.txtTo do the same, but hide both recipients:gpg -ea -R their_key_ID -R your_key_ID filename.txtThen head on over to Pine's PGP Club thread (the link is in her sig) to practice and trawl through it for the recommended reading list. I think I posted the various GPG manual links for command line usage on page 8.