基于复杂网络的网络系统脆弱点发现方法研究

Using complex networks to find vulnerable points in network systems can be carried out from the perspective of the topology of the network. We can research the vulnerability of nodes based on their topological characteristics. This can effectively solve the problem that the vulnerability assessment methods such as attack graphs cannot handle large-scale networks. Through the improvement of the node deletion method of Li Pengxiang, the average shortest path change of the network after the dynamic deletion of the node is calculated, and the nodes in the simulated network cannot be used after being attacked, thereby causing the change of the overall performance of the network. The evaluation not only considers the degree of network damage caused by deleting nodes, but also takes into account the impact on the efficiency of the network, so that defensive measures can be deployed more effectively against the vulnerable points.