Secure and Efficient Cross-Domain Access Control for Industrial Internet Alliance Chains Based on Zero-Knowledge Proof

This paper proposes a novel cross-domain access control mechanism for industrial Internet alliance chains using zero-knowledge proof (ZKP). The mechanism integrates ZKP with blockchain technology to achieve secure, privacy-preserving, and decentralized access control across multiple industrial domains. A formal system model and security framework are presented, along with an efficient ZKP protocol for attribute-based access control. The proposed scheme is implemented using smart contracts and distributed ledger technology. Comprehensive performance analysis and security verification demonstrate the mechanism’s high throughput, low latency, and resilience against various security threats. Experimental results show that the proposed solution is scalable and practical for large-scale industrial Internet scenarios, enabling secure data sharing and collaboration while protecting user privacy and ensuring fine-grained access control.