Abstract
In order to grasp the overall security status of the cloud platform, it is necessary to conduct security situational awareness research on cloud platform. Firstly, a three-layer security situation index system including static and dynamic is proposed. Then, the order relation method is used to calculate the static indexes, and the BP neural network method based on particle swarm optimization is used to calculate the dynamic indexes. Finally, the variable weight comprehensive analysis method is used to calculate the overall security situation value. The analysis and experiment results show that, the situation indicator system and situation awareness method proposed by us are generally more scientific and reasonable, and can identify the security situation of cloud platform more effectively.
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