First, get the nightly build of GPGTools at: https://nightly.gpgtools.com Then, read these tutorials on how to set it up, and how to use command line: https://dkn255hz262ypmii.onion.lu/index.php?topic=96799.msg686510#msg686510 https://dkn255hz262ypmii.onion.lu/index.php?topic=42031.0