Authors:Cinzia Bernardeschi¹;Andrea Domenici¹ andMaurizio Palmieri²

Affiliations:¹Department of Information Engineering, University of Pisa, Pisa and Italy;²Department of Information Engineering, University of Florence, Florence and Italy

Keyword(s):Security, Cyber-physical attacks, Co-simulation.

Abstract:This paper presents a methodology for the formal modeling of security attacks on cyber-physical systems, and the analysis of their effects on the system using logic theories. We consider attacks only on sensors and actuators. A simulated attack can be triggered internally by the simulation algorithm or interactively by the user, and the effect of the attack is a set of assignments to the variables. The effects of the attacks are studied by injecting attacks in the system model and simulating them. The overall system, including the attacks, the system dynamics and the control part, is co-simulated. The INTO-CPS framework has been used for co-simulation, and the methodology is applied to the Line follower robot case study of the INTO-CPS project.