Development of a method for securing the operator's situation awareness from manipulation attacks on NPP process data

Nuclear Engineering and Technology

Chanyoung Lee¹  Poong Hyun Seong¹  Jae Gu Song²  Cheol Kwon Lee² 

[1] Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology, 291, Gwahak-ro, Yuseong-gu, Daejeon, 34141, South Korea;Korea Atomic Energy Research Institute,111, Daedeok-daero 989 Beon-gil, Yuseong-gu, Daejeon, 34057, South Korea;

关键词: Cyber attack response;    Manipulation attacks on process data;    Control theory-based system analysis;    Adaptive Kalman filter;    Hardware in the loop system;   

DOI  :  

来源: DOAJ

【 摘 要 】

According to the defense-in-depth concept, not only a preventive strategy but also an integrated cyberattack response strategy for NPPs should be established. However, there are limitations in terms of responding to penetrations, and the existing EOPs are insufficient for responding to intentional disruptions. In this study, we focus on manipulative attacks on process data. Based on an analysis of the related attack vectors and possible attack scenarios, we adopt the Kalman filter to detect process anomalies that can be caused by manipulations of process data. To compensate for these manipulations and secure MCR operators' situational awareness, we modify the Kalman filter such that it can filter out the effects of the manipulations adaptively. A case study was conducted using a hardware-in-the-loop system. The results indicated that the developed method can be used to verify whether the displayed safety-related state data are reliable and to implement the required safety response actions.

【 授权许可】

Unknown