Active attack detection method for improving detection rate

Abstract

The invention provides an active attack detection method capable of improving the detection rate when network attacks exist. Through preprocessing and data recovery of the observer residual error, the designed active attack detector can significantly improve the attack detection rate in combination with the watermarking technology. The method can be simultaneously suitable for attack detection problems of denial of service attack, replay attack and false data attack, and has very high application value.

Description

technical field [0001] The invention belongs to the field of network attack detection in cyber-physical system security, and in particular relates to an active attack that improves the detection rate when a linear system with unknown but bounded noise is attacked by using the fully symmetrical polytope theory and watermarking technology Detection method. Background technique [0002] Cyber-physical system (CPS) is an intelligent system integrating control, communication and computing. On the basis of intelligent perception and information communication, the deep integration of computing, communication and control can be realized through the mutual influence of information computing and physical processes, and the physical system can be detected and controlled in a safe, reliable, efficient and real-time manner to realize the autonomy of the whole system and collaboration. Due to the existence of communication networks, attackers can not only carry out physical attacks, but...

AI Technical Summary

Problems solved by technology

[0004] At present, the problem of active attack detection for systems with unknown but bounded noise has always been a major problem for those skilled in the art

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