C++ app that encrypts and decrypts messages using DES algorithm.

• Introduction
• Technologies Used
• Contributors
• User Guide

Des algorithm is a 16-round encryption technique that encrypts a 64-bit message using a 64-bit key.

• C++.

Salma Hamed

1. Enter the operation you want to perform (encrypt/decrypt).
2. Enter the message (message should be entered using hexadecimal representation).
3. Enter the key (key should be entered using hexadecimal representation).
4. click 'y' if you want to enter another message, and 'n' if not.