Complex event processing for attack detection in a cyber-physical system

With technology advancing faster than ever and complex systems present in most of the areas of our lives ensuring security has become a critical issue. Protecting data from unwanted access by modifying it through cryptography, hiding data or digitally signing it are some of the solutions available. Just as important however is to detect and prevent attacks. We propose a system with hierarchical access to data which is gained through a digital signature algorithm. We focus our attention on detecting and preventing attacks through a less conventional method - complex event processing. Any action within the cyber-physical system can be viewed as an event, such as digitally signing a message. With this idea in mind we propose a solution that allows designing a secure cyber-physical system with an efficient attack detection architecture.