Putting sensitive files on a cloud drive like Dropbox can be dangerous no matter how secure they claim their systems are. The basic fact is that any system can be hacked, it happens every day. If you are using Dropbox to backup and share critical files like I am the first thing you want to do is to setup two factor authentication. In Dropbox the 2nd factor authentication sends a six digit access code in the form of a text message to your mobile phone. While this extends your security it alone will not totally protect your files. In this article I will take you step by step in setting up a encrypted Dropbox folder using EncFS and Ubuntu.
Install EncFS in Ubuntu
sudo apt-get install encfs
sudo add-apt-repository ppa:gencfsm/ppa
sudo apt-get update && sudo apt-get install gnome-encfs-manager
Set the directory to encrypt to a folder inside your Dropbox folder.
Set the mount directory wherever you want, the default is fine just don't put it in your Dropbox folder.
nter a strong password with at least 20 characters and click "Create".
Importing the drive on other computers:
1. Wait for all files to sync on Dropbox.
2. Start gnome-encfs-manager and set up a new stash.
3. encfs-manager will detect the drive and import it.
4. Set the mount directory wherever you want (default is fine) and click "Import"
5. Edit the new stash as described above.
6. You will be asked for your password on first mount.