Live Operating System
, which
makes using PGP encryption and decryption very easy. A live operating system is an
operating system that you can run on top of your current operating system. So for
example, if you are a Windows user, you have 2 choices. You can download the live
operating system, burn it to a CD or DVD and then boot your computer from that DVD or
CD. This will make your computer run as if you have this operating system installed on
your computer. However, if you remove the CD or DVD and reboot, then your computer
will boot as normal. You can also use a USB drive to perform this same feature.
Secondly, you can run this live operating system in what’s called a Virtual Box. The
benefits of this are that you can run Windows simultaneously as you run this other
operating system and you can easily switch back and forth between them without
rebooting the computer. Both methods have their pros and cons. The pros of running a live
CD boot, is that it reduces the risk of having your computer compromised by viruses,
malware and keyloggers that rely on Windows vulnerabilities to run.
If you are going to run this OS from a Virtual Box, I suggest downloading Virtual Box
from Oracle. Note the
https://
https://www.virtualbox.org/
Next, the live operating system I would encourage you to use is
Tails
. Tails can be found
at the following website.
https://tails.boum.org/
The reason I choose Tails, is because it has many of the security features that you require
to stay anonymous already installed. Some users are not happy with Tails, but it really is a
great operating system loaded with security features. Many I will talk about in this series
on security including PGP encryption and decryption. Make sure you download the Tails
ISO file from the official Tails website and you can either load it into Virtual Box or burn
it to a DVD or load it onto a USB and booting your computer from that drive.
There are plenty of tutorials on how to load Tails into Virtual Box, so I won’t go into
much detail other than, make sure you run Virtual Box and Tails from a USB drive or SD
card. I would suggest a USB drive however for reasons I will explain later. But basically
when when Virtual Box runs directly on your hard drive, it creates a virtual hard drive that
is uses as a temporary hard drive while Tails is running. Once Tails is closed, this virtual
drive is deleted, but it’s not permanently deleted. As we know from the power of recovery
tools, deleted files are easily recoverable with the right tools. I will talk about how to
protect your files from data recovery tools in future chapters but for now, just keep Virtual
Box and Tails OFF of your hard drive, and load it either on a USB drive or SD card.
The same goes when booting your computer directly into Tails from a DVD or USB stick.
Your hard drive will be used to store files used by Tails, so make sure any files that are
saved or accessed using Tails are done from a USB stick or SD card, otherwise they will
be recoverable. This is why I prefer using a Virtual Box and running both the Virtual Box
and Tails inside of it, off of a USB stick. Keep as much as possible off of your actual hard
drive. It is possible to shred files beyond recovery, but it’s much easier to do this on a
16gb flash drive, then it is a 1 TB hard drive.
Next we will start learning how to use PGP. The reason I had to take a detour to using
Tails is because we will be using Tails for many of the features from here on out, including
PGP.
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