智能制造CPS中基于节点有效度的共识算法
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摘要
智能制造信息物理融合系统(Cyber-Physical System,CPS)中设备在系统运行过程中产生大量通信信息和设备数据,这些数据存在被修改和窃取的风险。以分布式存储为核心的区块链技术有利于保障CPS系统的数据安全,但现有共识算法存在数据记录权限集中在少数节点、易被恶意节点劫持的问题。通过引入节点有效度,可以反映节点行为动态变化的情况。实验结果表明,基于节点有效度的共识机制可使得获得数据记录权限的节点分布更加分散,更好地体现系统的去中心化特性,提高了数据的安全性。
In the Cyber-Physical system(CPS), equipment generates a large amount of communication information and equipment data during the operation of the system, which are at risk of being modified and stolen. Block chain technology with distributed storage as the core is conducive to ensuring the data security of CPS system, but the existing consensus algorithms have the problem that data recording rights are concentrated in a few nodes and are easy to be hijacked by malicious nodes. By introducing node validity,the dynamic change of node behavior can be reflected. The experimental results show that the consensus mechanism based on the validity of nodes makes the distribution of nodes with access to data records more decentralized, better reflects the de-centralization characteristics of the system, and improves the security of data.
In the Cyber-Physical system(CPS), equipment generates a large amount of communication information and equipment data during the operation of the system, which are at risk of being modified and stolen. Block chain technology with distributed storage as the core is conducive to ensuring the data security of CPS system, but the existing consensus algorithms have the problem that data recording rights are concentrated in a few nodes and are easy to be hijacked by malicious nodes. By introducing node validity,the dynamic change of node behavior can be reflected. The experimental results show that the consensus mechanism based on the validity of nodes makes the distribution of nodes with access to data records more decentralized, better reflects the de-centralization characteristics of the system, and improves the security of data.
引文
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[2]李馥娟,王群,钱焕延.信息物理融合系统研究[J].电子技术应用,2018,44(9):24-28.
[3]LIU B,YU X L,CHEN S,et al.Blockchain based data integrity service framework for IoT data[C].2017 IEEEInternational Conference on Web Services(ICWS),Honolulu,HI,2017:468-475.
[4]崔丽珍,徐锦涛,丁福星,等.基于物联网的农业大棚气象数据监测系统设计[J].电子技术应用,2018,44(12):73-76,80.
[5]Du Mingxiao,Ma Xiaofeng,Zhang Zhe,et al.A review on consensus algorithm of blockchain[C].2017 IEEE International Conference on Systems,Man,and Cybernetics(SMC),Banff,AB,2017:2567-2572.
[6]LI C,ZHANG L J.A blockchain based new secure multilayer network model for Internet of Things[C].2017 IEEEInternational Congress on Internet of Things(ICIOT),Honolulu,HI,2017:33-41.
[7]DORRI A,KANHERE S S,JURDAK R,et al.Blockchain for IoT security and privacy:the case study of a smart home[C].2017 IEEE International Conference on Pervasive Computing and Communications Workshops(PerCom Workshops),Kona,HI,2017:618-623.
[8]SHARMA P K,CHEN M Y,PARK J H.A software defined fog node based distributed blockchain cloud architecture for IoT[J].IEEE Access,2017,6:115-124.
[9]POLYZOS G C,FOTIOU N.Blockchain-assisted information distribution for the Internet of Things[C].2017 IEEE International Conference on Information Reuse and Integration(IRI),San Diego,CA,2017:75-78.
[10]HUH S,CHO S,KIM S.Managing IoT devices using blockchain platform[C].2017 19th International Conference on Advanced Communication Technology(ICACT),Bongpyeong,2017:464-467.
[11]CHRISTIDIS K,DEVETSIKIOTIS M.Blockchains and smart contracts for the Internet of Things[J].IEEE Access,2016,4:2292-2303.
[12]Fu Dongqi,Fang Liri.Blockchain-based trusted computing in social network[C].2016 2nd IEEE International Conference on Computer and Communications(ICCC),Chengdu,2016:19-22.
[13]黄宇翔,梁志宏,黄苾,等.基于区块链的供应链可信数据管理[J].计算机系统应用,2018,27(12):9-17.