Study on Network Security Analysis Method Based on Graph

As information technology security issues become more prominent,the network system security analysis is becoming increasingly important.The paper presents NEG-NSAM,a network security analysis method.Based on network parameters abstract and vulnerability correlation analysis,the network exploitation graph model was constructed,and the dynamic process of a gradual infiltration of the main threats to security objectives was characterized.For large-scale network environment,the simplified algorithm of network exploitation graph model was proposed.Finally,the NEG-NSAM was used to exemplify the network and verify the feasibility and effectiveness of the method.