# gpg > GNU Privacy Guard, an OpenPGP encryption and signing tool. > More information: . - Create a GPG public and private key interactively: `gpg {{[--full-gen-key|--full-generate-key]}}` - List all keys from the public keyring: `gpg {{[-k|--list-keys]}}` - Sign `doc.txt` without encryption (writes output to `doc.txt.asc`): `gpg --clearsign {{doc.txt}}` - Encrypt and sign `doc.txt` for `alice@example.com` and `bob@example.com` (output to `doc.txt.gpg`): `gpg {{[-es|--encrypt --sign]}} {{[-r|--recipient]}} {{alice@example.com}} {{[-r|--recipient]}} {{bob@example.com}} {{doc.txt}}` - Encrypt `doc.txt` with only a passphrase (output to `doc.txt.gpg`): `gpg {{[-c|--symmetric]}} {{doc.txt}}` - Decrypt `doc.txt.gpg` (output to `stdout`): `gpg {{[-d|--decrypt]}} {{doc.txt.gpg}}` - Import a public key: `gpg --import {{public.gpg}}` - Export the public/private key for `alice@example.com` (output to `stdout`): `gpg {{--export|--export-secret-keys}} {{[-a|--armor]}} {{alice@example.com}}`