灰度布朗运动信息链Web防火墙设计分析

Analysis and Design of Web Firewall Based on Gray Brown Motion Information Chain

针对传统上采用模糊控制信息链设计防火墙导致攻击序列排队解析模型混乱,抗DDoS攻击的能力非常弱的问题,提出一种基于灰度布朗运动信息链的解析排队模型的Web防火墙设计模型。计算灰度布朗运动信息链模型的状态概率,引入灰度布朗运动信息链理论,设计Web防火墙数学解析模型,对相关的性能关键参数进行分析,引入攻击信息排队论分析机制,构建数据信息链优先链路选择准则,对防火墙的关键性能指标,比如吞吐量、延时、CPU使用率、数据包丢失,得到了这些指标的数学表达式。仿真测试证明该方法构建Web防火墙,参数性能有明显提高,抗攻击能力改进明显。

A queuing model to design the Web firewall based on gray Brown motion information chain is proposed. State probability calculation of gray Brown chain model of motion information is implemented, the motion information of gray Brown chain theory is used, the analytical model of mathematics on the performance of Web firewall design, key parameters are analyzed, the attack information queuing analysis mechanism is cited to construct data information chain precedence link selection criteria. The key performance indicators of the firewall such as throughput, delay, CPU utilization, packet loss, and the mathematical expressions of these indices are obtained. Simulation results show that the method of construct-ing Web firewall, parameters and has a better performance, and anti attack ability is improved obviously.