SOVEREIGN BRIDGE

Zero-Cloud Cross-Platform Data Synchronization

Absolute E2E encrypted. No intermediary. No cloud storage.

^{Sovereign Bridge Mobile Application — VERITAS gold-and-obsidian zero-cloud timeline}

^{Sovereign Bridge Desktop Console — E2EE PC node visualization}

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Sovereign Bridge is a cross-platform clipboard, file, note, and capture sharing system between PC and Android. Architecture: Python aiohttp daemon on PC + React Native mobile app, connected via WebSocket with localtunnel NAT traversal.

Data traverses directly from device to device. Zero cloud storage.

Architecture

+----------------------------+ +----------------------------+ | MOBILE APP (Android) | <-WS-> | PC DAEMON (Python) | | React Native | | aiohttp + WebSocket | | Clipboard / Camera / Files| | Port 5003 | +----------------------------+ +----------------------------+ | | +--- localtunnel NAT traversal ----------+ | | +----------------------------+ +----------------------------+ | AES-256 E2EE | | DESKTOP DASHBOARD | | Pre-shared key | | React UI | | Zero handshake | | Drag-and-drop staging | +----------------------------+ +----------------------------+

Cryptographic Guarantees (AES-256 E2EE)

All JSON payloads are encrypted before leaving device memory using AES-256-CBC with PKCS7 padding and randomized 16-byte initialization vectors per transmission. Pre-shared key (PSK) architecture — zero key exchange, zero MITM surface.

You MUST change the STATIC_SECRET in all three source files before deployment.

Features

• Bidirectional Clipboard Sync - Real-time clipboard sharing with selective gating
• Native Android Share Intents - Beam files, photos, text, or URLs via OS share sheet
• Desktop Notifications - Windows toast overlays (winotify) for incoming transfers
• OCR Text Extraction - Image-to-text for receipts, code, and documents
• Dropzone Staging - Drag and drop PC files to transfer to phone
• Ephemeral + Persistent Lanes - Choose whether transfers are kept or auto-cleared
• Project Tagging - Tag transfers to organize by project context
• Offline Queue - Transfers queued when disconnected, delivered on reconnect

Quick Start

1. Boot the Daemon

�ash cd daemon_and_desktop pip install -r requirements.txt python bridge_daemon.py

2. Launch the Dashboard

�ash cd daemon_and_desktop/desktop npm install npm run dev

3. Deploy the Mobile App

�ash cd mobile_app npm install npm run android

License

MIT

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_{Built by RJ Lopez | VERITAS Framework}