# DES Encryption Algorithm

## Description
This project implements a simplified version of the DES encryption algorithm, with encryption and decryption using a symmetric key.

## How to Build
1. Navigate to the `build` directory.
2. Run `make` to compile the project.

## How to Run
1. After building, run the `des` executable using `./des`.
2. You will be prompted to enter a message and a key, both as integers (64-bit).

## How to Clean
- Run `make clean` to remove all compiled files.