From intricate codes, comprising of numbers and text to forms of invisible ink, encryption has played a part in communication throughout the ages.
Today is no different, with computers being the tools for communication.
The only way to protect information from hackers is by using a method of encryption. With increasingly powerful encryption processors and the costs of computing power halving every 16 months, it is essential to always 'update' cryptographic algorithms. DES is a symmetric cryptosystem, specifically a 16-round Feistel cipher and was originally designed for implementation in hardware. DES can also be used for single-user encryption, such as to store files on a hard disk in encrypted form. Three DES encryptions with three different keys.