Businesses have proprietary information such as customer lists that need protection. The easiest way to protect only a few critical files is to encrypt and decrypt them manually. Unix system come with ...

There are many reasons to encrypt files — even on a system that is well maintained and comparatively secure. The files may highly sensitive, contain personal information that you don’t want to share ...

There are numerous commands for encrypting files on Linux. When you want to limit access to file contents, you can use file permissions but file encryption makes limiting access much more effective.

Encrypting files from the command line is simple with gpg. You can use it to encrypt and decrypt files with a password. The command gpg is part of GnuPG. GnuPG stands ...

Encryption is an interesting thing. The first time I saw encryption in action was on a friend’s Gentoo Linux laptop that could only boot if the USB key with the boot partition and decryption key was ...

You have data on your machines. Some of that data might be in the form of sensitive company or client information. Should that particular information fall into the wrong hands, well, you know that ...

In the Linux Journal article “Implementing Encrypted Home Directories” (August 2003), I described how to encrypt home directories transparently. This article describes how to implement another ...