Technology Architecture
Four-layer architecture design, secure, scalable, decentralized
Multi-Transport Architecture
Triple transport channels, smart routing, censorship-resistant
SMP Message Relay
SimpleX Messaging Protocol, bidirectional async message queues, server cannot decrypt
SMPNostr Relay Network
Connect to decentralized Nostr relays, multi-node message broadcast, no single point of failure
NostrBLE Mesh Proximity
Bluetooth Low Energy proximity communication, fully offline, for disaster and censorship scenarios
BLE MeshSystem Architecture
Client Layer
iOS/Android/Desktop native apps, local key management, zero-knowledge proofs
Protocol Layer
Popopx Protocol (PCP), hybrid post-quantum encryption, message routing
Service Layer
SMP server clusters, decentralized storage, message relay
Economy Layer
Token economy system, privacy computing marketplace, data trading
Quantum Security
Comprehensive protection against quantum computer attacks
Kyber-768
Kyber-768 (ML-KEM) - NIST standardized post-quantum key encapsulation algorithm
Dilithium-3
Dilithium-3 (ML-DSA) - NIST standardized post-quantum digital signature algorithm
AES-256-GCM
PQC + X25519 hybrid encryption, resisting both quantum and classical attacks
Decentralized Design
SMP Servers
Users can self-host servers, messages relayed through multiple nodes
Distributed Storage
Data sharded storage, no single node can access complete data
Governance
Token holders participate in protocol upgrades, parameter adjustments
Technology Stack
iOS
SwiftUI, Swift 6, liboqs (PQC), CryptoKit, ARKit (FaceGuardian), BLE Mesh, Lightning/Cashu
Backend
Haskell, SMP Server, Double Ratchet, Nostr Relays, SQLite/PostgreSQL
Protocol
PCP Protocol, Kyber-768 (ML-KEM), Dilithium-3 (ML-DSA), AES-256-GCM, CRDT
BinThere Burn-After-Read
22 security features including gaze tracking, anti-screenshot, anti-photography, silent capture detection, and AES-GCM evidence logging.
Gaze Tracking
ARKit TrueDepth + Vision framework fallback. Detects unauthorized viewers and auto-blurs sensitive content.
Moiré Anti-Photography
Pattern overlay defeats camera capture. Silent detection with AES-GCM evidence logging and audit trail.
Secure Container
SecureContainerView prevents screenshots, screen recording, and peeping. Auto-blur on background transition.
Needle Local AI
Fully on-device AI inference. PII auto-filter strips sensitive data before processing. No data ever leaves the device.
Local LLM Inference
AI runs entirely on device with PII auto-filter. Supports multiple model backends with privacy-first architecture.
FaceGuardian
Dual-backend gaze detection: ARKit TrueDepth for precision, Vision framework fallback. Real-time privacy protection.
CactusEngine
Keyword-based fallback when Metal/CoreML unavailable. Ensures always-on privacy protection across all devices.
Our Security Commitment
Zero-Knowledge Architecture
Servers cannot decrypt your messages, keys exist only on your device
Open Source & Auditable
Core protocol code is open source, audited by global security researchers
Quantum-Safe Ready
NIST-standardized post-quantum cryptography deployed, ready against future quantum threats
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