Study of network security situation awareness model based on simple additive weight and grey theory

Network security situation awareness is a new technology to monitor network security, and it is one of hot research domains in information security. The research situation of situation awareness all over the world is first analyzed. Network security situation awareness model (NSAM) based on simple additive weight and grey theory is presented. The construction of NSAM is divided into two stages: current network security situation evaluation modeling and future network security situation prediction modeling. The model of current network security situation evaluation using simple additive weight is established by the threat degree of various services attacked The model of future network security situation prediction adopting grey theory is built by past and current network security situation. Test results show that NSAM is feasible and reasonable.