ecryptfs

From https://help.ubuntu.com/community/EncryptedPrivateDirectory

These articles will also be useful:

• Encrypt Directory in Linux

• Encryptfs

Note

The instructions below will probably work if you use a password to log in.

Install:

sudo apt-get install ecryptfs-utils
ecryptfs-setup-private

Enter your login password, and either choose a mount pass phrase or generate one.

Note

Record both pass phrases in a safe location!!! They will be required if you ever have to recover your data manually.

Log out… log back in…

USB Memory Stick

Make a folder on the USB device e.g:

mkdir /media/patrick/pny8gb/Private

Initialise the encrypted file system:

Tip

Make sure the USB device is mounted before running the following.

sudo mount -t ecryptfs /media/patrick/pny8gb/Private /media/patrick/pny8gb/Private
# enter your sudo password (the first time)
# enter the 'Passphrase' and then accept all default options

Unmount:

sudo umount -l /media/patrick/pny8gb/Private