EncryptPad is a free and open source text editor for sensitive information, which protects files with passwords, key files, or both, available for Linux, Windows and Mac. The app can also be used to encrypt binary files, such as images, videos, and so on.

DNSCrypt is a protocol for securing communications between a client and a DNS resolver, preventing spying, spoofing or man-in-the-middle attacks. To use it, you'll need a tool called dnscrypt-proxy, which "can be used directly as your local resolver or as a DNS forwarder, authenticating requests using the DNSCrypt protocol and passing them to an upstream server".

EncFS is a FUSE-based cryptographic filesystem which encrypts individual files. As some of you might know, an EncFS security audit that was conducted in February 2014, revealed some potential vulnerabilities:

Ubuntu doesn't support tray icons by default and further more, the systray whitelist, which could be used to get applications to use the systray, has been removed with Ubuntu 13.04.

This is pretty bad for TrueCrypt, an open source disk encryption application that still uses a tray icon and doesn't come with an Ubuntu AppIndicator, because you can't bring the mount/dismount dialog up once you close the main window unless you kill the application (it closes to the tray which isn't visible).

For this reason, Stefan Sundin has created an Ubuntu PPA for TrueCrypt which has been patched to use an Ubuntu AppIndicator instead of a tray icon.

Gnome Encfs Manager (GencfsM) is a tool to manage EncFS filesystems. The tool is a great alternative to Cryptkeeper (but with some extra features), which can't be used in Ubuntu 13.04 unless you install a patched Unity to support the old systray whitelist.

Initially, DNSCrypt was announced as being available for Mac only for now, but according to an OpenDNS article posted yesterday, the source code for DNSCrypt was published on GitHub when they've released the Mac preview and even though there's no user interface yet, Linux users can already install DNSCrypt.

Dropbox is very popular - and for a good reason - it's fast, you get free storage space which can easily be increased, there are many additional tools that make use of Dropbox and so on, but unfortunately it doesn't encrypt the data on your computer. This is why, a while back I was suggesting to encrypt private Dropbox data using EncFS.

But what if you want to access an encrypted folder from an Android device? You can use BoxCryptor, but it has some limitations: the free version has read-only access so you can't upload / modify files, only the first two encrypted folder levels are accessible (deeper folders can't be accessed) and has limited EncFS support (you have to use custom EncFS settings to be able to use it).

Well, a new Android application has been released recently, solving all these issues: Cryptonite EncFS.