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.

(Moved to Fialka) 🔐 End-to-end encrypted chat for Android. PQXDH (X25519 + ML-KEM-1024) + AES-256-GCM, full Double Ratchet (PFS + healing), Firebase relay. Zero metadata, zero tracking.

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

Post-Quantum Extended Diffie-Hellman protocol implementation

🔐 End-to-end encrypted chat for Android. PQXDH (X25519 + ML-KEM-1024) + AES-256-GCM, full Double Ratchet (PFS + healing), P2P, Zero metadata, zero tracking.