1. Install encfs
  2. do $mkdir ~/Dropbox/Secure ; mkdir ~/DropboxSecure
  3. do $ encfs ~/Dropbox/Secure ~/DropboxSecure
  4. I chose paranoia mode. This will use the settings below.
  5. Enter a secure password and there you go.

You now have a folder ‘DropboxSecure’, in which you can store your sensitive data. It will save this in ~/Dropbox/Secure/ .

You can unmount this via $ sudo umount /home/karlo/DropboxSecure #needs to be done using sudo. I guess this is a bug. After umounting, you will notice the directory DropboxSecure is still there, but empty.

Mount again by using step 3 and entering your password.

Paranoia settings: 

Filesystem cipher: “ssl/aes”, version 3:0:2
Filename encoding: “nameio/block”, version 3:0:1
Key Size: 256 bits
Block Size: 1024 bytes, including 8 byte MAC header
Each file contains 8 byte header with unique IV data.
Filenames encoded using IV chaining mode.
File data IV is chained to filename IV.
File holes passed through to ciphertext.

Screenshot:

By karlo