I get this error everytime. Now, I’ve inserted the public key and the privatekey in to Kleopatra. Howcome I still get this error?
The party that encrypts our files says that they do so with our public key.
(This might be a noob question, my apologies).
the most likely cause is that the pubkey the message was signed with does not
match the list of public keys that you have in your crypto engine (GnuPG) store.
(Verification different from decryption and needs a different public key.)
Try verifying the signature on the command line
gpg --verify -v YOURFILE
to see more diagnostic messages.