Open Source BASIC Encryption Software for Linux

PasswordBox is a console-mode program that will keep all your passwords safe, in an encrypted database protected by a master password. PasswordBox can also be used to generate secure (random) passwords. This program is written by Mateusz Viste, and uses the AES implementation of Chris Brown to handle all encryption/decryption processes. PasswordBox is available for the following operating systems: DOS, Windows, Linux. Remember, that if you forget your master password, you will have no way to recover the database content. Usage: pbox [--help] [--dump] --help displays a help screen (any unsupported parameter will display it, too) --dump lists all the data of your encrypted database onscreen

Simple, lightweight, cross-platform (Windows / Linux / ARM6 Linux), cross-arch (x32 / x64), standalone command line file encryption program. GnuPG is probably the best application for cross-platform encryption. However, its usage on Windows PCs may be inconvenient (installation administrator rights; large executable size for perhaps just a one-time file decryption, complicated command-line switches for stronger encryption). NCrypt would fulfill this task, but does not operate on 64-bit Windows - MLCrypt was created because of this. The program's primary aim is cascade encryption: create an encrypted outer layer over an existing compressed and encrypted archive file. (Each encryption layer should have a different complex password.) MLCrypt.zip contains all the executables: Linux, Windows, Raspberry Pi.