A Novel Extended Algorithm for Network Security Situation Awareness

Network security situational awareness (NSSA) technology as a new research area in network security plays an important role in changing network security defense model from passive type to active. In order to enhance the capability of perceiving status the network stays in and emergency responding capability, it is especially important to design an index system for large scale NSSA and a situation assessment algorithm. This paper extends the existing hierarchical evaluation method and introduces a new network security assessment algorithm with a high adaptability based on other researchers´ work.