Abstract
The emerging Industrial Internet of Things (IIoT) provides industries with an opportunity to collect, aggregate, and analyze data from sensors, including motion control, machine‐to‐machine communication, predictive maintenance, smart energy grid, big data analysis, and other smart connected medical systems. The physical systems and the cyber systems are organically integrated, forming an interdependent IIoT. This system provides us with enormous advantages, but at the same time, it also introduces the main safety challenges in the design and operation phase. To exploit the security threats of IIoT systems, in this paper, we propose a novel security‐by‐design approach for interdependent IIoT environments across two different levels, namely, theory modeling and runtime simulation. Our method theoretically analyzes the cascading failure dynamics of the intentional attack network. Simultaneously, we verified the theoretical results through simulations and gave the risk factors that affect the system’s security to mitigate potential security attack threats. Besides, we prove its applicability through comparative simulation experiments to study application environments that rely on IIoT, which shows that our method helps identify risk factors and mitigate IIoT attacks’ mechanism.
Highlights
In recent years, with human society’s progress and the widespread use of the Internet, many emerging technologies and industries are booming
We found that the Internet of things technology has been embedded in people’s daily life, intelligently connecting things or objects around us. e industrial Internet of things is the deep integration of the Internet of things in industrialization and informatization
In 2011, Germany first proposed the concept of Industry 4.0 [3, 4] and took CPS as the primary goal of Industry 4.0 development [5]
Summary
With human society’s progress and the widespread use of the Internet, many emerging technologies and industries are booming. Embedded computer and communication networks are considered network components It is the interdependent computational-resource network and physical-resource network that the CPS model as Ref. We model the IIoT system composed of computing resources and physical resources as two interdependent complex networks and elaborate the cascading failure dynamics of the cyberphysical system under the intentional attack strategy. We will mainly analyze and study the two critical theories of the security of the Industrial Internet of ings, namely the interdependent network and percolation theory. Compared with the above work, this paper’s difference is that it analyzes the interdependent network’s cascading failure dynamics based on the intentional attack mode, and the network type is closer to reality. We can better evaluate CPS’s network security performance and industrial Internet of things through the combination of theory and simulation
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