Secure and Trusted Open CPS Platforms

Cyber-physical systems (CPS) are devices with sensors and actuators which link the physical with the virtual world. There is a strong trend towards open systems, which can be extended during operation by instantly adding functionalities on demand. We discuss this trend in the context of automotive, medical and industrial automation systems. The goal of this chapter is to elaborate the research challenges of ensuring security in these new platforms for such open systems. A main problem is that such CPS apps shall be able to access and modify safety critical device internals. Cyber-physical attacks can affect the integrity, availability and confidentiality in CPS. Examples range from deception based attacks such as false-data-injection, sensor and actuator attacks, replay attacks, and also denial-of-service attacks. Hence, new methods are required to develop an end-to-end solution for development and deployment of trusted apps. This chapter presents the architecture approach and its key components, and methods for open CPS apps, including tool chain and development support.