Zhang, Yu;
Fei, Minrui;
Du, Dajun;
Hu, Yukun;
(2024)
Security State Assessment in Cyber-Physical Systems Post-DoS Attack Based on Cyber Layer Partitioning.
IEEE Transactions on Industrial Informatics
pp. 1-10.
10.1109/TII.2024.3495766.
(In press).
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Abstract
Coupling, as an important characteristic of cyber-physical systems (CPS), brings opportunities and challenges to the control and application of industrial systems. This article mainly analyses the role of the cyber layer in the process of controlling the physical layer and gives a security state assessment method for the CPS after the Denial-of-Service (DoS) attack. First, we develop an advanced CPS coupling model that intricately captures the interactions between the physical and cyber layers, emphasizing both data and topology coupling. Unlike existing models that often overlook these aspects, our model offers a more comprehensive understanding of the complex interdependencies within CPS. Second, we propose a unique method for partitioning network layer nodes based on the physical layer's control requirements. Unlike traditional approaches that treat network layer nodes as homogeneous, our method categorizes nodes into sensor, controller, and actuator areas, each with distinct roles in the control process. This differentiation ensures that data flow within the network layer follows a fixed and logical direction, enhancing the overall system efficiency and reliability. Third, we introduce a security state evaluation factor that leverages the network layer partitioning to assess the system's resilience under cyber-attacks. This evaluation provides a detailed analysis of the system's security status, ensuring that potential vulnerabilities are identified and mitigated. Together, these innovations contribute to a more robust and practical framework for CPS design and analysis, with significant implications for enhancing system security and performance in real-world applications.
| Type: | Article |
|---|---|
| Title: | Security State Assessment in Cyber-Physical Systems Post-DoS Attack Based on Cyber Layer Partitioning |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/TII.2024.3495766 |
| Publisher version: | https://doi.org/10.1109/tii.2024.3495766 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Coupling; cyber layer partitioning; cyberphysical system; system security state assessment |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10202556 |
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