Network system security analysis based on game strategies graph

To solve the network security response problem, a novel network response decision-making method based on the two-matrix game model was present. We analyzed the attackers and system administrators´ different strategies, and then constructed the dual-benefit matrix of the attackers and defenders. On the basis of this, the two-matrix network security game model was proposed. At last, the optimal defense strategy decision-making algorithm was proposed. Using this algorithm, we could analyze benefits of both offensive and defensive, and solved the Nash Equilibrium Point which balanced the both and gave the optimal response decision-making strategy. The proposed method could make accurate response decision and had a high efficiency. Also, it occupied a lower memory which could reduce the interference to normal user when administrators manage the network.