DVPN Chrome Extension

Overview

The DVPN Chrome Extension is a decentralized VPN built using libp2p to enable peer-to-peer network routing without relying on centralized servers. It leverages libp2p-kad-dht for peer discovery, updates the browser's proxy settings dynamically using a PAC script, and includes a reputation system for managing peer trust.

Features

• Peer-to-peer VPN using libp2p
• Decentralized peer discovery with libp2p-kad-dht and libp2p-mdns
• Proxy auto-configuration (PAC script) updates dynamically based on connected peers
• Reputation-based peer management to ensure security and reliability
• Browser UI to control VPN settings

Project Structure

DVPN-Chrome-Extension/
│── background.js      # Handles networking, proxy settings, and reputation system
│── popup.html         # Frontend UI
│── popup.js           # Handles UI interactions
│── manifest.json      # Chrome extension manifest
│── README.md          # Documentation

How It Works

1. background.js

• Initializes a libp2p node for peer discovery and communication.
• Manages a peer reputation system to track peer reliability.
• Updates proxy settings dynamically by modifying the PAC script.

2. popup.html & popup.js

• Provides a simple user interface to control the VPN.
• Allows users to start/stop the VPN and view connected peers.

3. manifest.json

• Defines permissions for proxy settings, storage, and web requests.
• Configures the background script and popup UI.

Security Considerations

• Reputation system: Peers with bad reputation are disconnected.
• Encryption: Ensure secure peer communication using TLS.
• Traffic filtering: Prevent abuse by monitoring peer behavior.

Future Enhancements

• WebRTC support for improved peer-to-peer connectivity
• Better UI/UX for managing peers and VPN status
• Advanced security mechanisms (e.g., rate limiting, encryption improvements)

License

MIT License