Abstract
Nowadays, as the next generation sensor networks, Cyber-Physical Systems (CPSs) refer to the complex networked systems that have both physical subsystems and cyber components, and the information flow between different subsystems and components is across a communication network, which forms a closed-loop. New generation sensor networks are found in a growing number of applications and have received increasing attention from many inter-disciplines. Opportunities and challenges in the design, analysis, verification and validation of sensor networks co-exists, among which security and privacy are two important ingredients. This paper presents a survey on some recent results in the security and privacy aspects of emerging sensor networks from the viewpoint of the closed-loop. This paper also discusses several future research directions under these two umbrellas.
Highlights
As the generation sensor networks, Cyber-Physical Systems (CPSs) are the complex systems that consist of cyber elements, physical elements and an interface that connects the different subsystems.The physical subsystems typically evolve according to some physical laws (e.g., Newton’s laws)
We will discuss a few research directions around these two topics, which we think are important in the analysis and design of a secure CPS with privacy guarantee
We have made a survey on the Security and privacy in CPS from the viewpoint of the closed-loop
Summary
As the generation sensor networks, Cyber-Physical Systems (CPSs) are the complex systems that consist of cyber elements, physical elements and an interface that connects the different subsystems. In case an attacker obtains the privilege to the cyber space and is able to control the desired device, he/she is able to spread malware, compromise sensing and communication equipments and inject false information in measured or computed data. A global objective cannot be achieved without active participation of many individual users Such a global objective, for example obtaining the average electricity consumption of the households in a small community, may not need the exact electricity usage (private information) of each household, but only need their collective data. Natural questions to ask here are whether the privacy of each individual can be well maintained while at the same time certain global objectives are met, and how to achieve a desired tradeoff between individual’s privacy and payoff In this survey paper, we present the works from many different areas that focused on CPSs security and privacy. Some concluding remarks and opening questions in CPSs security and privacy are presented at the end
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