Decentralized. Peer-to-Peer. Offline. Free communication without borders, servers, or surveillance.

AURA is a decentralized messenger leveraging Nearby Connections technology to create robust mesh networks. It thrives where the internet fails, bypassing censorship and eliminating central points of failure.

📸 Screenshots

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✨ Key Features

• 🌐 Offline Mesh: Powered by Bluetooth and Wi-Fi Direct. Messages hop from device to device seamlessly.
• 🎭 The Aura: A unique digital identity concept. Your specific color, icon, and behavior patterns form your "Aura" within the network.
• 🔐 Total Privacy: End-to-End (E2E) encryption for all data.
  • Complete anonymity: messages are injected into a shared distributed ledger without sender or recipient metadata.
• 🛡 Flood Protection: Smart architecture designed to mitigate "Blackhole" and flood-based attacks.
• 🎨 Modern UI/UX: A smooth, intuitive interface that bridges the gap between high security and everyday usability.

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🛠 Tech Stack

📱 Frontend (Mobile)

• Framework: React Native 0.83.1
• State Management: Jotai + jotai-family
• Navigation: React Navigation 7

⚙️ Native Layer (Android)

• Language: Kotlin + Coroutines
• Networking: Google Nearby Connections (The core of local P2P mesh)
• Geolocation: Play Services Location (For proximity-based node discovery)

🔐 Security & Cryptography

• Engine: Bouncy Castle (Industrial-grade crypto provider)
• PoW: Argon2 (via Signal implementation).
• Storage: op-sqlite

📸 Utilities

• Camera: Vision Camera 4 (For scanning contact QR codes)
• QR Generation: React Native QR Code SVG.

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🏗 How It Works (Architecture)

AURA avoids Tor to ensure faster and more stable connections within local networks. Instead, it utilizes a Distributed Message Ledger system.

1. Diffusion: A message is encrypted and broadcast to all available peers.
2. Relay: Nodes retransmit the message further into the mesh.
3. Discovery: Only the private key holder can decrypt and read the intended message.
4. Zero-Knowledge: No node in the relay chain knows the identity of the final recipient.

⛓️ Dual-Layer Ledger System

AURA utilizes a unique Dual Ledger system to balance local speed with global reach:

1. Local Ledger (L1):

   • Operates purely via P2P connections (Bluetooth/Wi-Fi).
   • Messages circulate exclusively among physically proximate devices.
   • Perfect for "off-the-grid" scenarios or maximum immediate privacy.

2. Global Ledger (L2): (In Development)

   • Messages can reach Global Nodes (Gateways) if any peer in the mesh gains internet access.
   • Enables worldwide communication while maintaining anonymity through ledger mixing.

Tip

Deep dive into the protocol: Read the full technical specification in AURANET.md

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🚀 Roadmap

• UI Prototype and Aura concept
• Local Distributed Ledger (L1) implementation
• Global Ledger (L2) and first Gateway nodes
• Fast nearby direct messaging and files exchange
• iOS Support (Multiplatform)

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🤝 Contributing

This project is currently in the Alpha stage. Contributions are more than welcome:

1. Fork the repository.
2. Create your feat/your-feature branch.
3. Commit your changes using Gitmoji.
4. Open a Pull Request.

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📄 License

Distributed under the GNU GPL V3 License. See LICENSE for more information.

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Made with ❤️ for a free world and digital sovereignty.