Encrypting External USB Drives (Linux)
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Encrypting removable devices (USB flash drives, external hard drives, etc) provides a method to guarantee data security in the event of loss, theft or confiscation. When backing up personal information onto external storage, encryption is a recommended preparation for the filesystem.Source: Encrypted FileSystemsWhile playing around with TAILS, I learned about how to encrypt external drives...I'd read about it before, but hadn't spent as much time since TrueCrypt and AESCrypt.com took care of my needs.
For fun, I started encrypting all my external USB drives, but since I don't typically run TAILS (e.g. Crunchbang or PeppermintOS) all the time, I wondered how to do this on those GNU/Linux distros.
Here are the steps I followed:
1) Install cryptsetup
sudo apt-get install cryptsetup
2) Install Disk Utility
sudo apt-get install gnome-disk-utility
Here's what it looks like:
3) Add this to my Openbox menu
This is the only step that really caused me some concern but a quick google search revealed that you can use the following command palimpsest or gnome-disks
4) To encrypt a hard drive--all pre-existing data will be wiped out--follow these steps:
a) Format the device
b) This will result in a blank drive, so you will need to create a partition ... note that you will want to check the "Encrypt underlying device" and assign it a name, then click CREATE.
c) When you click CREATE, you will be prompted for a passphrase. Be sure to memorize this; if you lose it, you won't be able to get access to the drive later.
d) That's pretty much it. Success will look something like this:
5) Plug the drive in. The next time you plug the drive into a computer, you will be prompted:
After you enter the password, you will be able to access the encrypted contents:
If you ever need to change the password, you can run Disk Utility again and click on "Change passphrase."
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