OpenPGP key generation for GnuTLS

Create key pair. Write down the key number.

gpg --gen-key

Edit the key with the command below.

gpg --edit-key 1F8D4A4C

In gpg prompt enter passwd and specify empty password, type quit.

gpg --armor --export 1F8D4A4C> public.key
gpg --armor --export-secret-keys 1F8D4A4C> secret.key

Delete keys from keyrings if required.

gpg --delete-secret-keys 1F8D4A4C
gpg --delete-keys 1F8D4A4C