I have been looking for an encryption solution since long time ago. I was looking for a solution to encrypt the hard desk in case my laptop got stolen, or somebody expose my confidential information. I heard about too many solutions from computer companies (IBM ThinkPad, HP etc), but to be honest, I hate the closed source solutions especially in this area.
Today, I was listening to security now podcast, and I heard about an open source solution for hard desk encryption. It’s called TrueCrypt. The idea is you create a container file (volume), set a password, and then mount it to a drive letter. Any file you write to the encrypted volume will be automatically encrypted, and any file you read from the encrypted volume automatically decrypted. This means no decrypted file will be stored on the desk, and no file encrypted file will be loaded to the memory. The good thing in this solution is that not all parts of the file will be decrypted and loaded to the memory. Only small portion of the file will be decrypted and loaded, and the application associated with this file will start running this file portion, and at the same time will start loading the next portion.
Too many features in this encryption solution, you can find more information in
