应用于工业互联网数据安全的分层轻量级高通量区块链方法

Hierarchical lightweight high-throughput blockchain for industrial Internet data security

随着工业互联网应用的快速发展,其分布式的拓扑结构和异构设备的资源限制,对传统的数据存储、传输和安全保护提出了新的挑战。区块链技术的分散式信任和分布式帐本机制,适应于大规模工业互联网应用,并有可能成为工业安全和数据保护的有效方法。但是,传统区块链的计算通量低、能耗高、可扩展性有限,并且会产生显著的带宽开销和网络延迟,难以直接适应于工业应用。由此提出一种满足工业环境要求的高效、安全和轻量级的分层扩展式区块链。该模型在典型工业互联网结构下构建了资源受限层、扩展资源层两层区块链。设计了轻量级共识算法、分布式信任确权机制和动态高通量管理方法,并通过工业互联网受限资源设备的数据存储请求交易说明了分层区块链具体实现流程。扩展了不同资源能力的工业设备在网络中的高效区块操作,并确保端到端的操作安全和数据保护。为工业互联网泛在接入建立实体间信任关系和数据安全提供新的思路和方法。

With the rapid development of industrial Internet applications,its decentralized topology and resource limitations of heterogeneous devices,traditional data protection methods have been challenged.The basic technologies of decentralized trust and distributed ledger of blockchain technology are suitable for distributed and large-scale industrial Internet,which aslo becomes an effective method for Industrial Internet security and data protection.However,traditional blockchains have low computational throughput,high power consumption,limited scalability,and significant bandwidth overhead.Therefore,a security,private and lightweight expandable blockchain that met the requirements of industrial control environment was proposed.Two-layer blockchain that consisted of Restricted Resource Layer(RRL)and Extended Resource Layer(ERL)was constructed in the overlay network.The lightweight consensus algorithm,distributed trust confirmation mechanism and dynamic high-throughput management algorithm were designed,and the specific implementation process of blockchain was illustrated by local data storage request transaction in the industrial control environment.The efficient block operation of devices with different resource capabilities in the entire overlay network was expanded,and the end-to-end privacy and security were guananteed.It had provided a new way for industrial Internet in data security.