Encryption

At Rest Encryption

Learn why at rest encryption doesn't mean encryption when your laptop is asleep. There are many steps you can take to harden a computer, and a common recommendation you'll see in hardening guides is to enable disk encryption. Disk encryption also often is referred to as "at rest encryption", especially in security compliance guides, and many compliance regimes, such as PCI, mandate the use of at rest encryption. This term refers to the fact that data is encrypted "at rest" or when the disk is unmounted and not in use. At rest encryption can be an important part of system-hardening, yet many administrators who enable it, whether on workstations or servers, may end up with a false sense of security if they don't understand not only what disk encryption protects you from, but also, and more important, what it doesn't.

The Wire

In the US, there has been recent concern over ISPs turning over logs to the government. During the past few years, the idea of people snooping on our private data (by governments and others) really has made encryption more popular than ever before. One of the problems with encryption, however, is that it's generally not user-friendly to add its protection to your conversations.

Jetico's BestCrypt Container Encryption for Linux

Cyber-attacks are now constant, threats to privacy are increasing, and more rigid regulations are looming worldwide. To help IT folks relax in the face of these challenges, Jetico updated its BestCrypt Container Encryption solution to include Container Guard.

Flat File Encryption with OpenSSL and GPG

The Pretty Good Privacy (PGP) application, which has long been known as a primary tool for file encryption, commonly focused on email. It has management tools for exchanging credentials with peers and creating secure communication channels over untrusted networks.

smbclient Security for Windows Printing and File Transfer

Microsoft Windows is usually a presence in most computing environments, and UNIX administrators likely will be forced to use resources in Windows networks from time to time. Although many are familiar with the Samba server software, the matching smbclient utility often escapes notice.

Preseeding Full Disk Encryption

Usually I try to write articles that are not aimed at a particular distribution. Although I may give examples assuming a Debian-based distribution, whenever possible, I try to make my instructions applicable to everyone. This is not going to be one of those articles.

Secret Agent Man

It used to be that only the paranoid among us focused on strict security practices, yet these days, it seems like people are stepping up their games with respect to encryption, password policy and how they approach their computers in general. Although I always have considered myself more inside that paranoid camp than outside of it, I even have found myself stepping up my game lately.

USMobile, Inc.'s Scrambl3

The special sauce in USMobile, Inc.'s Scrambl3, the mobile app that facilitates "the world's most private calls and messages", is a set of open-source components that create a top-secret-grade VPN, encryption algorithms and internet protocols.

Let's Automate Let's Encrypt

HTTPS is a small island of security in this insecure world, and in this day and age, there is absolutely no reason not to have it on every Web site you host. Up until last year, there was just a single last excuse: purchasing certificates was kind of pricey.

Stunnel Security for Oracle

Oracle has integrated modern Transport Layer Security (TLS) network encryption into its eponymous database product, and TLS usage no longer requires the Advanced Security option beginning with the 10.2 database release.

Encrypt Your Dog (Mutt and GPG)

I have been focusing a lot on security and privacy issues in this year's columns so far, but I realize some of you may expect a different kind of topic from me (or maybe are just tired of all this security talk). Well, you are in luck.

Tails above the Rest, Part III

In my first two columns in this series, I gave an overview of Tails, including how to get the distribution securely, and once you have it, how to use some of the basic tools.

Encrypting Your Cat Photos

The truth is, I really don't have anything on my hard drive that I would be upset over someone seeing. I have some cat photos. I have a few text files with ideas for future books and/or short stories, and a couple half-written starts to NaNoWriMo novels. It would be easy to say that there's no point encrypting my hard drive, because I have nothing to hide.