Engineering Commons^™

A Frequency Hopping Method To Detect Replay Attacks, Guofu Tang

LSU Master's Theses

The application of information technology in network control systems introduces the potential threats to the future industrial control system. The malicious attacks undermine the security of network control system, which could cause a huge economic loss. This thesis studies a particular cyber attack called the replay attack, which is motivated by the Stuxnet worm allegedly used against the nuclear facilities in Iran. For replay attack, this thesis injects the narrow-band signal into control signal and adopts the spectrum estimation approach to test the estimation residue. In order to protect the information of the injected signal from knowing by attackers, the …