Suppose we have a folder full of information that we do not want someone else to see (pr0n, important documents ... etc) and we simply want to protect it. How do we do it? Well, encrypting said folder or its content.
Cryptkeeper is an application that will allow us to protect our folders in this way in a very simple way. Of course, the first thing we have to do is install the application, which can be found in the repositories of Debian y Ubuntu (I don't know if it exists in the rest of the distributions).
$ sudo aptitude install cryptkeeper
In the case of Xfce, the application appear in the Applications Menu »System. When we run it, they appear in the System Tray (tray) an icon that will allow us to manage the options of Cryptkeeper.
We click on the icon with the left mouse button, and we have two options:
In this case we are interested in creating a New encrypted folder, so we click on that option and we get this window:
I first created a folder in my / Home call Personnel, which will have the encrypted folder inside, which I will call Private. Once the name is entered, we click on the button Forward and the application will ask us for a password for this folder:
We put the password that we want and we give the button Forward, then the folder will have been created successfully:
From this moment we can Assemble / Dismount our encrypted folder using the tray icon.
If we disassemble it and reassemble it, it will ask us for the password that we entered previously. In the preferences of Cryptkeeper (click with the right mouse button on the tray icon), we can choose with which file browser we want to open the folder. By default it came with Nautilus, so I changed it to Thunar:
An important detail: the simple fact of being able encrypt / encrypt A folder does not mean that it cannot be completely deleted, with all its contents. Another way to protect our information is by making use of the Steganography and we have already talked about an application that lets us do this.