In 2013, the people of the world learned that our privacy was being violated. This 'program' is known as PRISM, and involves the United States Federal Government and many multinational corporations. In the wake of this, there has been a great backlash. With the increasing need for security and privacy, the base standards for encryption need to be increased. 128-bit encryption isn't enough anymore.... More Info »
Krypta uses three layers of multiple encryption. Each file or volume is encrypted with one layer of 256-bit AES, one layer of 256-bit Twofish, and one layer of 256-bit Serpent ciphers. Each layer of encryption uses an independent SALT (Random hash) and an independent password (If the user permits so by checking "Use three passwords").
These independent variables help to keep each layer as separate and independent from each other as possible. This maximizes and utilizes the benefit of multiple encryption. After all what is more secure: a locked door or a door that is locked, chained, and deadbolted? A keyfile may also be used to maximize security. The keyfile may be any file the user wishes from a picture file to a video file, just make sure to store the keyfile in a safe place as the file cannot be decrypted without it.
The keyfile works by supplying separate data to the algorithm that isn't accessible from the Salt or password. A cracker could discover your password(s) and still wouldn't be able to properly decrypt your file because they don't have that other data supplied by the keyfile.
The program, naturally is GNU free software, however this app is not free as in 'free food,' it is free as in free speech. The app is available currently on the Mac App store and soon on the Ubuntu Software Center. Unsandboxed versions are available for Linux, Windows (64-bit), and OSX.
For more information, visit: http://miragesoftware.jimdo.com/krypta/