Secure Chat Application

This project is a secure chat application that allows users to communicate over a network using different encryption methods. The application supports AES, RSA, and no encryption options, providing flexibility in terms of security and performance.

Features

• Server-Client Architecture: The application is built using a server-client model, where one user hosts the server and others connect as clients.
• Encryption Options: Users can choose between AES, RSA, or no encryption for their communication.
• Key Exchange: For RSA encryption, the application supports public key exchange between the server and client.
• Threaded Communication: Both server and client can send and receive messages simultaneously using threading.

Prerequisites

• Python 3.x
• pycryptodome library for AES encryption
• rsa library for RSA encryption

You can install the required libraries using pip:

pip install pycryptodome rsa

Setup

1. Clone the repository:

   git clone https://fadel-hasan/Secure-Chat-Application.git
   cd secure-chat-application

2. Generate AES Key: Run the generate_key.py script to generate a key for AES encryption:

   python generate_key.py

3. Run the Application:

   • Server: Start the server by running:

     python main.py

     Choose the "Host (Server)" option and follow the prompts.

   • Client: Connect to the server by running:

     python main.py

     Choose the "Connect (Client)" option and follow the prompts.

Usage

• Starting the Server: Enter the host IP and choose an encryption method. The server will wait for a client to connect.
• Connecting as a Client: Enter the server IP and the client will connect using the chosen encryption method.
• Messaging: Type messages to send them. Type 'close' to end the connection.

Encryption Methods

• AES: Symmetric encryption requiring a password. The password is used to derive a key from a salt stored in key.bin.
• RSA: Asymmetric encryption using public/private key pairs. Keys are exchanged between server and client.
• No Encryption: Messages are sent in plain text.

License

This project is licensed under the MIT License. See the LICENSE file for details.

Contributing

Contributions are welcome! Please fork the repository and submit a pull request for any improvements or bug fixes.

Contact

For any questions or issues, please contact [email protected].