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https://github.com/arad-afzali/secure-messaging-server-side
Secure Chat Server is a Python-based application enabling secure communication between two clients. It supports RSA public key exchange, encrypted messaging, and optional SSL/TLS support for enhanced security. The server routes messages without accessing their contents and ensures secure key exchange and disconnection of additional clients.
https://github.com/arad-afzali/secure-messaging-server-side
encrypted-messaging public-key-exchange rsa-encryption secure-chat-server secure-communication secure-server ssl-tls
Last synced: 3 days ago
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Secure Chat Server is a Python-based application enabling secure communication between two clients. It supports RSA public key exchange, encrypted messaging, and optional SSL/TLS support for enhanced security. The server routes messages without accessing their contents and ensures secure key exchange and disconnection of additional clients.
- Host: GitHub
- URL: https://github.com/arad-afzali/secure-messaging-server-side
- Owner: Arad-Afzali
- License: mit
- Created: 2024-06-03T12:10:55.000Z (5 months ago)
- Default Branch: main
- Last Pushed: 2024-06-07T18:13:30.000Z (5 months ago)
- Last Synced: 2024-06-07T19:36:22.817Z (5 months ago)
- Topics: encrypted-messaging, public-key-exchange, rsa-encryption, secure-chat-server, secure-communication, secure-server, ssl-tls
- Language: Python
- Homepage:
- Size: 4.4 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# Secure Chat Server
This is a simple secure chat server implemented in Python. It allows two clients to connect, exchange public keys for secure communication, and send messages to each other.
## Client Application
The client application is necessary to connect to this secure chat server. You can find the client application repository and instructions on how to set it up below:
https://github.com/Arad-Afzali/secure-messaging-client-side
Please follow the installation and usage instructions in the client application's README to ensure proper communication with the server.
## Features
- Supports two clients.
- Exchanges public keys for secure communication and removes them immediately when they are not needed.
- Routes messages between clients (note: the server does not have access to the messages as they are encrypted by the clients).
- Disconnects all clients when more than two clients attempt to connect.
## Requirements
- Python 3.x
- `openssl` (for SSL/TLS support, Optional but Recommended)
## Installation
1. **Clone the repository**:
```bash
git clone https://github.com/Arad-Afzali/secure-messaging-server-side.git
cd secure-messaging-server-side
```
### Note (Optional but Recommended Steps)
2. **Generate SSL/TLS certificates**:
```bash
# Generate a new RSA private key
openssl genrsa -out server.key 4096
# Generate a Certificate Signing Request (CSR)
openssl req -new -key server.key -out server.csr
# Generate a self-signed SSL certificate
openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt
```
3. **SSL/TLS Support**
To enable SSL/TLS support, first you should uncomment the relevant sections in the ChatServer class and provide the paths to your certificate and key files:
```bash
#uncomment these sections in the code:
self.context = ssl.create_default_context(ssl.Purpose.CLIENT_AUTH)
self.context.load_cert_chain(certfile='server.crt', keyfile='server.key')
#---------
client_socket = self.context.wrap_socket(client_socket, server_side=True)
```
## Usage
1. **Start the server**:
```bash
python3 server.py
```
### Note
You should change the IP address and port in the server.py. The default IP address in 127.0.0.1 and the default port is 7004.
2. **Connect clients to the server using the client application.**
## Contributing
Contributions are welcome! Please open an issue or submit a pull request.