RC4 Algorithm in Rust

This repository contains an implementation of the RC4 stream cipher algorithm in Rust. The program allows you to encrypt and decrypt messages using RC4.

Features

• Key Scheduling Algorithm (KSA)
• Pseudo-Random Generation Algorithm (PRGA)
• Real-time encryption and decryption of input text
• Hexadecimal output for ciphertext
• Support for UTF-8 plaintext and decryption back to the original text

Getting Started

Prerequisites

• Rust programming language installed. You can download it from rust-lang.org.

Running the Program

1. Clone the Repository

   git clone https://github.com/Oxion7/rc4-rust.git
   cd rc4-rust

2. Build the Program

   cargo build

3. Run the Program

   cargo run

Usage

Upon running the program, you will be prompted to enter a key and the plaintext to encrypt. The program will output the ciphertext in hexadecimal format and then decrypt it back to show the original plaintext.

Example:

Enter the key: mysecretkey
Enter the plaintext: hello world
Ciphertext (hex): 3e 14 23 3d 25 8b 2c 8b 1a 15 5a 
Decrypted: hello world
Decrypted text: hello world