VeraCrypt is a fork of the now-defunct TrueCrypt project and has inherited most of its parent’s functionality and also some quirks like its license, which is why it isn’t available in any distro’s software repository. The project also doesn’t ship binaries for popular distros, but installing it is simple. The program has wizards for common tasks such as creating encrypted volumes and then mounting them, which makes it ideal for to new users. There’s has an option to benchmark the speed for the encryption and decryption of various supported encryption ciphers. You can use the software to organise volumes and mount them with a single click. You can change the encryption password and add or remove key files to volumes. Conducting some tasks using its graphical interface is fairly straightforward, while others require some digging around.