Ok thanks Mike,
So, I need to sign the key with these commands:
pgp --sign-key <user> --signer <signer> --sig-type <type> --passphrase <pass>
But I have some doubts:
- In my case the <user> can be the KeyID? :0xB9548AA8
- The <signer> will be again the KeyID or the UserId of the public key?
- Finally, I don't have the passphrase of the private key to sign the public key. How can I do without a passphrase to sign the key?