Encrypt Your Data With EncFS (Ubuntu 12.10)
provides an encrypted filesystem in user-space. It runs without any
special permissions and uses the FUSE library and Linux kernel module to
provide the filesystem interface. It is a pass-through filesystem, not
an encrypted block device, which means it is created on top of an
existing filesystem. This tutorial shows how you can use EncFS on Ubuntu
12.10 to encrypt your data.