Stochastic Game Theoretic Method of Quantification for Network Situational Awareness

Stochastic game theory is proposed to apply to the research on network situational awareness (NSA),and then a novel quantification method of NSA based on analysis of network service states is proposed. In this paper, network offense-defense game model including both the attacker and the defender in it is constructed; and game mathematical modeling of network situation is realized; the payoff of the both sides in the game is quantified according to the specific application, and the game situations is obtained by analyzing network service state. Finally, simulation experiments are done to validate the Nash equilibrium's existing, at which point both of the sides get a balance between their payoffs and by which the current stable network security state is reflected, finally the quantification of NSA is achieved.