README.md

metadata

title: Secure Messenger v5.0
emoji: 🔒
colorFrom: green
colorTo: indigo
sdk: docker
app_port: 7860

Secure Messenger v5.0

Post-Quantum End-to-End Encrypted Messaging

Security Features

Feature	Specification
Key Exchange	Double ML-KEM-1024 (NIST FIPS 203)
Signatures	Double SLH-DSA (NIST FIPS 205)
AEAD	XChaCha20-Poly1305
Security Bits	288-bit quantum-resistant
Forward Secrecy	✅ Enabled
Post-Compromise	✅ Auto key rotation

API Endpoints

• GET / - Service info
• GET /api/health - Health check
• GET /api/security_report - Security details
• POST /api/register - Register user
• GET /api/friends/{user_id} - Get friends list
• POST /api/friends/add - Add friend
• GET /api/items/user/{user_id} - Get user items
• GET /api/items/marketplace - Browse marketplace
• POST /api/items - Create item
• POST /api/items/{id}/transfer - Transfer ownership
• GET /api/user/{user_id} - User profile
• GET /api/encryption_key/{user_id} - Get encryption key
• WS /ws/{user_id} - WebSocket for real-time chat

Deployed

This space runs the Secure Messenger v5.0 backend.

Mobile app available at: [GitHub Repository]

Security Guarantee

✅ Quantum computer resistant
✅ Forward secrecy
✅ Post-compromise recovery
✅ No server-side decryption