"Encrypting files is fairly straightforward and there are
various tools for doing this. For example, there is bcrypt, ncrypt,
and Pad which is a one-time pad encryption tool. The most popular
tool is probably Gnupg. It comes with just about every Linux
distribution. However, the point of this article is about encrypted
file systems for Linux so it will focus on the other two
"There are several options for encrypted file systems or
encrypted partitions. This article isn't intended to be an
exhaustive listing of options or a HOWTO on the various options.
Rather it's intended to wet your appetite so you can explore the
details of the various options yourself.
"While wikipedia is perhaps not the most authoritative source of
information about cryptography or encrypted file systems, there is
a simple list of file systems. It's definitely not complete but it
at least lists options as a starting point."