An Anonymous and Supervisory Cross-Chain Privacy Protection Protocol for Zero-Trust IoT Application

Internet of things(IoT) development tends to reduce the reliance on centralized servers. The zero-trust distributed system combined with blockchain technology has become a hot topic in IoT research. However, distribution data storage services and different protocols make network interoperability cross-platform more complex. Relay chain is promising cross-chain that solves complexity compatibility issues associated transactions by utilizing relay blockchains as connectors. Yet, need collect asset information implement via two-way peg. Due release user transaction information, there issue privacy leakage. In this paper, we propose protection protocol based Groth16 zero-knowledge proof algorithm coin-mixing technology, which changes authentication mechanism uses combination generating functions map virtual external addresses transactions. It allows fast anonymous while hiding genuine user’s address. experiment shows that, context, our scheme can effectively protect accomplish controlled traceability operations, guarantee security.