The network security of electric power information system is easy to be attacked,hence,an intelligent assessment method of electric power information system network security situation is proposed.A hierarchical structure is used for the power information system network,a security assessment model is built to obtain the number of attack sources and attack fre-quency from the original data such as attack data,attack status and traffic monitoring,and measure the indicators of the securi-ty situation.It realizes the intelligent assessment of the power information system network security situation through the hier-archical calculation of the security situation values at the service level,host level,system level and multi-level network.The experimental results show that this method can effectively evaluate the attack category and threat level when the power informa-tion system network is attacked,and the highest credibility after intelligent evaluation is 0.8,and the fault tolerance coefficient fluctuates around 0.92,so the credibility and fault tolerance are higher.
关键词
电力信息系统/网络安全态势/智能评估/威胁数据
Key words
electric power information system/network security situation/intelligent assessment/threat data
维普
万方数据