A colonel blotto game for interdependence-aware cyber-physical systems security in smart cities

摘要: Smart cities must integrate a number of interdependent cyber-physical systems that operate in coordinated manner to improve the well-being city's residents. A system (CPS) is computational elements controlling physical entities. Large-scale CPSs are more vulnerable attacks due interdependencies can lead cascading failures which have significant detrimental effect on city. In this paper, novel approach proposed for analyzing problem allocating security resources, such as firewalls and anti-malware, over various cyber components an CPS protect against imminent attacks. The formulated Colonel Blotto game attacker seeks allocate its resources compromise CPS, while defender chooses how distribute defend potential To evaluate effects defense attack, factors considered including human-CPS interactions well topological characteristics flow capacity interconnections minimum path algorithms. Results show that, case not aware interdependencies, higher payoff, compared has complete information. results also symmetric nodes, achieves highest payoff at equilibrium with independent, asymmetric nodes.