Improvement of Networked Control Systems Performance Using a New Encryption Algorithm

Subject Areas : Renewable energy

Seyed Ali Mesbahifard ¹ ( Yazd University )
Benyamin Hagh Niaz Jahrimi ² ( Yazd University )
Pooya Hajebi ³ ( Yazd University )
Seyed Mohammad Taghi Almadrasi ⁴ ( Yazd University )

Received: 2013-07-29 Accepted : 2014-04-25 Published : 2014-06-01

Keywords: Security, Encryption, Time delay, Deception attack, networked control systems,

Abstract :

Networked control systems are control systems which controllers and plants are connected via telecommunication network. One of the most important challenges in networked control systems is the problem of network time delay. Increasing of time delay may affect on control system performance extremely. Other important issue in networked control systems is the security problems.  Since it is possible that unknown people access to network especially Internet, the probability of terrible attacks such as deception attacks is greater, therefore presentation of methods which could decrease time delay and increase system immunity are desired. In this paper a symmetric encryption with low data volume against deception attacks is proposed. This method has high security and low time delay rather than the other encryption algorithms and could improve the control system performance against deception attacks.

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