GNU Privacy Guard (GnuPG or GPG) is an encryption software, which is a substitute for PGP encryption software to meet GPL. GnuPG is designed according to the technical standard of OpenPGP formulated by IETF. GnuPG is a software for encryption, digital signature and asymmetric key pair generation.

Install GPG first

Sudo apt installs gnupg.

gpg - gen-key

Real name: enter the user name.

Email Address: Enter an email address.

Change your name, email or other means? O

Check it for the last time

Gpg-list-key