From [the official website]:
- Tomb is 100% free and open source software to make strong encryption easy to use.
- A tomb is like a locked folder that can be safely transported and hidden in a filesystem.
- Keys can be kept separate: for instance the tomb on your computer and the key on a USB stick.
Tomb aims to be a simple to use software to manage "encrypted directories", called tombs. A tomb can only be opened if you both have a keyfile and you know the password. It also has advanced features, like steganography.
You can install AUR from the aur using
yaourt -S tomb