gpg

GNU Privacy Guard. See gpg2 for GNU Privacy Guard 2. Most operating systems symlink gpg to gpg2. More information: https://gnupg.org.

gpg --full-generate-key

gpg --clearsign doc.txt

gpg --encrypt --sign --recipient alice@example.com --recipient bob@example.com doc.txt

gpg --symmetric doc.txt

gpg --decrypt doc.txt.gpg

gpg --import public.gpg

gpg --export --armor alice@example.com

gpg --export-secret-keys --armor alice@example.com