Wi-COMM: More Than Just a Signal

A secure, local communication platform prototype built with Python. It features an aesthetic UI, end-to-end encrypted text messaging, and one-to-one voice calling over a local Wi-Fi network (LAN).

Features

• Peer-to-Peer Communication: Works entirely on your local network, no internet required.
• Secure Messaging: All text messages are encrypted using AES-256 before transmission.
• Real-time Voice Calling: Low-latency voice calls using UDP, with optional encryption.
• Aesthetic UI: A clean, modern interface built with PyQt5 and custom QSS styling.
• Local Logging: Stores communication and metadata (IP addresses, timestamps) in a local SQLite database.

Prerequisites

• Python 3.10+: Ensure you have a recent version of Python installed.
• Required Libraries: All necessary dependencies can be installed using pip.

Installation

1. Clone the repository:

   git clone [https://github.com/igovindpillai/WiComm.git](https://github.com/your-username/WiComm.git)
   cd WiComm

2. Install dependencies:

   pip install PyQt5 pyaudio pycryptodomex

   Note: If you encounter issues with pyaudio, you may need to install system-level audio libraries.

How to Run

The main.py script automatically handles the client/server logic. It will start a server if one is not detected on the network, and then it will launch the client.

1. Start the first instance:

   python main.py

   This will start a server and a client on your machine.

2. Start another instance on a different machine on the same Wi-Fi network:

   python main.py

   This second instance will detect the running server and connect to it as a client. You can now communicate between the two machines.

3. To start a voice call:

   • Click the "Start Call" button.
   • The voice call is a one-to-one connection. Ensure you know the target IP address and connect to it directly. (Note: The current prototype initiates a local call; for peer-to-peer, you would select a user from the list to call).

Folder Structure

WiComm/
├── main.py
├── server.py
├── client.py
├── ui/
│   ├── chat_ui.py
│   └── style.qss
├── voice/
│   └── voice_stream.py
├── encryption/
│   └── aes_utils.py
├── utils/
│   ├── ip_logger.py
│   └── location.py
├── data/
│   └── logs.db
├── README.md
└── LICENSE