Setting up dropbox with encryption on ubuntu.

Firstly install drop box: https://www.dropbox.com/install

Now we need to install the encfs.

#apt-get install -y encfs

Now to create an encrypted drive:

#encfs ~/Dropbox/data.encrypt ~/data

Creating new encrypted volume.

Please choose from one of the following options:

enter "x" for expert configuration mode,

enter "p" for pre-configured paranoia mode,

anything else, or an empty line will select standard mode.

?>

Standard configuration selected.

Configuration finished. The filesystem to be created has

the following properties:

Filesystem cipher: "ssl/aes", version 2:2:1

Filename encoding: "nameio/block", version 3:0:1

Key Size: 192 bits

Block Size: 1024 bytes

Each file contains 8 byte header with unique IV data.

Filenames encoded using IV chaining mode.

File holes passed through to ciphertext.

Now you will need to enter a password for your filesystem.

You will need to remember this password, as there is absolutely

no recovery mechanism. However, the password can be changed

later using encfsctl.

New Encfs Password:

Verify Encfs Password:

Now that we have setup the encrypted folder we need to tell Dropbox to not sync the drive settings.

#dropbox exclude add ~/Dropbox/data.encrypt/.encfs6.xml

Excluded:

~/Dropbox/data.encrypt/.encfs6.xml

Now to get this to mount when you login. First install libpam-encfs:

#apt-get install libpam-encfs

Edit /etc/fuse.conf and add:

user_allow_other

Edit /etc/security/pam_encfs.conf

drop_permissions

encfs_default

* /home/$USER/Dropbox/data.encrypt /home/$USER/data -v allow_other

Edit /etc/pam.d/common-auth to look like:

auth sufficient pam_encfs.so

auth [success=2 default=ignore] pam_unix.so nullok_secure use_first_pass

auth [success=1 default=ignore] pam_winbind.so krb5_auth krb5_ccache_type=FILE cached_login try_first_pass

auth requisite pam_deny.so

auth required pam_permit.so

And your done, Enjoy.