#Tomb is a 100% #free and #open source tool that facilitates managing #secret files in volumes protected by strong #encryption.

Tomb’s ambition is to improve safety by way of:

a minimalist design consisting of small and readable code
the facilitation of good practices, i.e.: key/storage physical separation
the adoption of a few standards and battle-tested components

https://dyne.org/software/tomb/

Dyne.org :: Tomb :: Folder Encryption on GNU/Linux

Tomb is a system to make strong encryption easy for everyday use. A tomb is like a locked folder that can be safely transported and hidden in a filesystem.

^Dyne.org