The interactions between attackers and network administrator are modeled as a non-cooperative non-zero-sum dynamic game with incomplete information, which considers the uncertainty and the special properties of multi-stage attacks. The model is a Fictitious Play approach along a special game tree when the attacker is the leader and the administrator is the follower. Multi-objective optimization...

Data throughput is spectacularly increasing by using MIMO and CR utilizes the existing wireless spectrum opportunistically. The emerging technologies tackle the problem of limited available spectrum. Combination of ad hoc networks with MIMO and cognitive radios greatly ready to merge with the networking and communication technology of decentralized architecture. Adhoc in nature the networks mee...

This paper analyzes a multicriteria matrix goal game under entropy environment. Here a new game model known as multicriteria entropy matrix goal Game is formulated. Multiobjective non-linear programming model for each player is established. The concept of Pareto-optimal security strategy assures the property of security in the individual criteria against an opponent’s deviation in strategy; how...

We present classification of known attacks in online games and provide security solutions against them. While previous works just presented attacks and solutions in case by case, we newly classify attacks by objectives and methods. Moreover, we present attacks in each of four layers: client, server, network, and environment. Through this systematic classification, solutions can be provided more...

In this paper, we propose an evolutionary game model to analyze the investment decision making process in the cyber offender-defender interaction and provide a quantified approach for defender to calculate the safety threshold to avoid the occurrence of offender-leading game. Then we use simulation as a workbench to discuss the adjustment of each parameter to the security investment threshold. ...

Cloud Computing is one of the most popular information processing concepts of today’s IT world. The security of the cloud computing is complicated because each service model uses different infrastructure elements. Security elements implemented in a model are transferred to other persons or entities in another model. Each asset may need different security level than other assets depending on the...

With increasing connectivity among comprising agents or (sub-)systems in large, complex systems, there is a growing interest in understanding interdependent security and dealing with inefficiency in security investments. Making use of a population game model and the well-known Chung-Lu random graph model, we study how one could encourage selfish agents to invest more in security by internalizin...