veracrypt

Free and open source disk encryption software. More information: https://www.veracrypt.fr/code/VeraCrypt/plain/doc/html/Documentation.html.

• Create a new volume through a text user interface and use /dev/urandom as a source of random data:
  veracrypt --text --create --random-source={{/dev/urandom}}
• Decrypt a volume interactively through a text user interface and mount it to a directory:
  veracrypt --text {{path/to/volume}} {{path/to/mount_point}}
• Decrypt a partition using a keyfile and mount it to a directory:
  veracrypt --keyfiles={{path/to/keyfile}} {{/dev/sdXN}} {{path/to/mount_point}}
• Dismount a volume on the directory it is mounted to:
  veracrypt --dismount {{path/to/mounted_point}}