LAUSR

To support cyber security assessment and enhancement of cyber-physical systems, a cross-layered experimental prototype platform has been developed. In this article, to make the prototype versatile, a modular approach has been taken. There are in total four modules: 1) Attack scenario generation; 2) security enhancement; 3) security evaluation; and 4) platform management. In reference to typical cyber-enabled industrial control systems, the design philosophy and selection of the architecture for this platform have been examined. To provide interested readers with additional details and to demonstrate the effectiveness of the proposed platform, a hardware-based cyber security assessment and enhancement prototype platform has been implemented on a lab-scale cyber-physical system. Two types of cyberattacks have been considered to demonstrate the operation of the platform and to validate its functions in an event of a security breach. The results have demonstrated that the design methodology is effective for practical cyber-physical systems, and the platform is a useful tool to identify and analyze vulnerabilities and to evaluate the effectiveness of different security enhancement strategies.