I'm looking to encrypt a file with OpenSSL functions (blowfish, des, rc4-- haven't picked one yet). Anyhow, after decrypting a file, I need to know if the file was correctly decrypted. The only way it ...

Encrypting your PC is one thing, but how do you keep it backed up? And how do you maintain easy access to the files if you work on several computers at different times? One author I know has two ...

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 ...

A discreetly tucked-away folder that contains your résumé, your tax returns, and other important files may be convenient for you, but it’s also a gold mine for online crooks who steal and sell digital ...

GnuPG, or GPG, is a free implementation of the OpenPGP standard. It allows you to encrypt and sign your data and communications. It features a versatile key management system and access modules for ...

You probably have documents on your desktop operating system that contain sensitive information. So what do you do to protect that data? You could hide the document in an obscure folder -- but that's ...