Data security transmission mechanism in industrial networked control systems against deception attack

Abstract

Industrial networked control sy stems (INCSs) are widely used in the modern critical infrastructures and the collapse of INCSs will cause serious economic losses. Due to the communication protocols used in INCSs mostly without security control, this paper proposes a data security ftansmission (DSTM) to protect the data transmitted in INCSs, which integrates DES, MD5 algorithms and a dynamic key mechanism sy nchronous with events. The former two algorithms are used to enforce the data confidentiality and check the data integrity and reliability. For the keys update in encryption, the dynamic key- mechanism based on event synchronization is proposed to avoid transmitting the key through network. The results of simulation performed in the MATLAB SIMUUNK suggest that the DSTM can effectively solve the key management problem of encryption and secure the data transmission in INCSs.