R-SGW - SSL Gateway

This repository contains a Python script for creating an SSL Gateway that securely forwards traffic between clients and a backend server. The SSL Gateway uses self-signed certificates for encryption, making it suitable for testing and development environments.

Features

Automatically generates a self-signed SSL certificate if none exists.
Listens for incoming SSL connections and forwards data to a specified backend server.
Handles SSL encryption and decryption using Python's ssl and OpenSSL libraries.

Requirements

Python 3.x
pyOpenSSL library (can be installed via pip)

pip install pyOpenSSL

Usage

You can run the SSL Gateway with command-line arguments to specify configuration options.

Command Line Arguments

--ssl_host: Host IP for the SSL Gateway (default: localhost)
--ssl_port: Port for the SSL Gateway (default: 8443)
--backend_host: Host IP for the backend server (default: localhost)
--backend_port: Port for the backend server (default: 8081)
--certfile: Path to the SSL certificate file (default: cert.pem)
--keyfile: Path to the SSL key file (default: key.pem)

Example Command

python your_script.py --ssl_host 0.0.0.0 --ssl_port 8443 --backend_host 192.168.1.100 --backend_port 8081

How It Works

Self-Signed Certificate Generation: If the specified certificate or key files do not exist, the script generates a self-signed certificate and private key.
Start SSL Gateway: The SSL Gateway listens for incoming SSL connections on the specified host and port.
Forward Data: Once a connection is established, it forwards data between the client and the specified backend server, handling SSL encryption and decryption transparently.

Example Output

When running the script, you should see output similar to:

SSL Gateway is running on localhost:8443, forwarding to localhost:8081...
SSL Connection from ('127.0.0.1', 12345)
SSL connection established with ('127.0.0.1', 12345)
Connected to backend localhost:8081

License

This project is licensed under the MIT License. Feel free to modify and use it as needed.

Contributing

If you want to contribute, please fork the repository and create a pull request with your changes. Any improvements or bug fixes are welcome!

Author

This script was developed by Afrizal F.A as part of R&D at ICWR.