Abstract
This research studies defense strategies of an interdependent system in the face of rational attacks. We propose a sequential game between an attacker and a defender for an interdependent System of Systems (SoS) to explore the effect of interdependency on an optimal defense strategy. We develop an algorithm of backward induction to obtain the Nash equilibrium of the game. The attacker is the first mover as he applies an attack strategy on constituent systems that maximizes his utility. The defender observes and responds by a defense strategy that maximizes her utility. Both players' utilities are expressed as the difference between a player's reward due to SoS functionality (dysfunctionality) and the cost of the action. The sensitivity analysis compares the effects of different parameters on the attacker's and defender's strategies such as the effectiveness of defense (attack), the unit cost of defense (attack) and the interdependency level of constituent systems.
Original language | English |
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Title of host publication | 2018 21st International Conference on Information Fusion, FUSION 2018 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 2535-2541 |
Number of pages | 7 |
ISBN (Print) | 9780996452762 |
DOIs | |
State | Published - Sep 5 2018 |
Event | 21st International Conference on Information Fusion, FUSION 2018 - Cambridge, United Kingdom Duration: Jul 10 2018 → Jul 13 2018 |
Publication series
Name | 2018 21st International Conference on Information Fusion, FUSION 2018 |
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Conference
Conference | 21st International Conference on Information Fusion, FUSION 2018 |
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Country/Territory | United Kingdom |
City | Cambridge |
Period | 07/10/18 → 07/13/18 |
Funding
This research was funded by the Mathematics of Complex, Distributed, Interconnected Systems Program, Office of Advanced Computing Research, U.S. Department of Energy under award number 4000147347. However, any opinions, findings, and conclusions or recommendations in this document are those of the authors and do not necessarily reflect views of the Department of Energy.