GPG

gpg --full-generate-key
# default
# 4096 size
# 0 (do not expire)
# real name : your-name
# email : your@mail.com

gpg --list-secret-keys --keyid-format=long

# Encrypt
gpg --encrypt --sign --armor -r FINGERPRINT name_of_file

# Decrypt
gpg file_name.asc

## Export key
gpg --output public.pgp --armor --export FINGERPRINT

## Export private key !!!
gpg --output private.pgp --armor --export-secret-key FINGERPRINT

Key edition

# FINGERPRINT is the key fingerprint or the email
gpg --edit-key FINGERPRINT

> notation # add a notation, put a minus to remove
> save

> showpref # show key
> quit

gpg --armor --export FINGERPRINT > public.asc