One of the oldest still-working protocols on the Internet is FTP (File Transfer Protocol). Designed in the net’s earliest days, FTP never concerned itself with security. Later standards addressed this ...

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 ...

The key used for these kinds of symmetric encryption is called as File Encryption Key (or FEK). This FEK is in return encrypted with a public or a private key algorithm like RSA and stored with the ...

I’ve been involved with multiple projects with file encryption lately, and even though I’ve been assisting with data encryption projects for years, I’m still learning something new every day. They say ...

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 ...

To help secure your Google Drive, use two-factor authentication and be careful when giving other apps permission to use your ...

Last year, in between writing Take Control books and Macworld articles, I managed to squeeze in another little project – writing the 900-page “Mac Security Bible,” published in January 2010 by Wiley.

Curious about the security of your documents in the cloud? You’re not alone. We recently received an email from Dana in Marietta, Ga., who is asking this, "I just read your article on saving documents ...

Whenever we encrypt any data, we need a simple key just to unlock it. Well, this key is everything. This key is the foundation of the security on the user’s front. And keeping it safe and secure is ...

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 ...