Privacy-focused secure messenger with post-quantum E2EE (PQXDH/ML-KEM), OpenMLS groups, SFrame voice/video, Sealed Sender. Flutter (iOS/Android) + Tauri (Desktop). Self-hostable, Kubernetes-native, Apache-2.0.

🔐 End-to-end encrypted chat for Android. X25519, AES-256-GCM, full Double Ratchet (PFS + healing), Firebase relay. Zero metadata, zero tracking.

Post-Quantum Extended Diffie-Hellman protocol implementation

Didactic demo implementation of core Signal Protocol cryptography and messaging flows, including PQXDH hybrid key agreement and Double Ratchet concepts for secure communication.