ZKIM Messaging: DeCom Architecture for Decentralized Communication

Abstract

This paper presents ZKIM Messaging, a decentralized messaging system implementing DeCom (Decentralized Communication) architecture. ZKIM Messaging provides end-to-end encrypted messaging, adaptive message routing and delivery, room management and group messaging, and distributed message storage and retrieval. The system uses three-layer encryption (Platform/User/Content) via ZKIM File Format, WebRTC-based peer-to-peer transport, and multi-layer storage (CAS + DHT + Local cache) for high availability. We describe the DeCom architecture, implementation details, and performance characteristics of ZKIM Messaging, demonstrating its effectiveness in production deployments. The system achieves end-to-end encryption with privacy-preserving search capabilities, supports adaptive routing based on network conditions, and provides distributed storage with automatic deduplication. Performance evaluation demonstrates efficient message delivery with sub-second latency for small groups and scalable delivery for large groups through relay hierarchies.