Detection of deception attacks on the backward channel of networked control systems

This paper addresses the security issues of data transmitted in the backward channel of networked control systems (NCSs) under deception attacks, especially confidentiality and integrity. As a kind of typical active attacks, deception attacks can severely degrade the system performance or even destabilize the system. To detect the deception attacks on the backward channel of NCSs, a detection scheme is presented in this paper, which mainly integrates the Data Encryption Standard (DES) algorithm and strong tracking filter (STF). A numerical example is employed to illustrate the effectiveness of the proposed method.