基于区块链的ICS数据安全策略研究

随着“中国制造2025”规划的推进,工业控制系统(industrial control system,ICS)日益增长,工控网络安全性和可靠性得到普遍关注。区块链思想和技术的出现,为数据安全性和可靠性提供了新的思路。针对工业控制网络中的数据安全问题,将区块链技术应用于工业控制网络中,再结合区块链的关键技术,以及区块链不可篡改、分布式记账和不可伪造的去中心化特点,提出了在工控区块链网络环境下的共识控制模型。在模型中记录一旦被输入就永远不会被更改或删除,想通过干预个别节点而篡改数据是不可能的,除非对全网信息进行干预,保证了模型中节点之间的数据的一致性。通过OPNET网络仿真软件对工控区块链网络进行仿真,其网络延时和吞吐量都说明了区块链技术能实现工业控制系统的网络安全、数据安全,使工业控制网络可靠、安全、高效、低成本。

Research on Data Security Strategy of ICS Based on Blockchain

With the promotion of“Made in China 2025”plan,the industrial control system(ICS)in China is growing day by day,and the safety and reliability of industrial control network are paid more and more attention.The emergence of blockchain idea and technology provides a new idea for data security and reliability.Aiming at the problem of data security in the industrial control network,applying the block chain technology to the industrial control network and combining the key technologies of the block chain,as well as the characteristics of the block chain that can not be tampered with,distributed accounting and non forgeable decentralization,we put forward the consensus control model in the industrial control block chain network environment.In this model,once the records are input,they will never be changed or deleted.It is impossible to tamper with data by intervening individual nodes,unless the whole network information is intervened to ensure the consistency of data between nodes in the model.Through OPNET Network simulation software to simulate the industrial control blockchain network,its network delay result graph and throughput graph can show that blockchain technology can realize the network security,data security of industrial control system,and make the industrial control network reliable,safe,efficient and low-cost.