论文部分内容阅读
针对无线自组网的网络带宽受限、对实时性业务支持较差、安全性不高等弊端,提出一种基于正则表达式匹配的分布式网络安全系统匹配(DREM)方法,协同利用每个节点资源完成分布式无线网络的安全防御。以无线自组网为应用场景,以移动嵌入式无线节点为运算平台,将匹配过程分为预过滤阶段和验证阶段:预处理阶段过滤一部分不满足的条目,在验证阶段根据预处理阶段的结果简化条目验证。实验表明精确匹配的计算效率提升平均达到82.1%以上。匹配方案可以有效对数据包进行检测和访问控制,对于中规模或大规模分布式无线节点具有良好适用性。
Aiming at the limitation of wireless ad hoc network, such as limited network bandwidth, poor support for real-time business, and low security, a distributed network security system matching (DREM) method based on regular expression matching is proposed. Each node Resources to complete the defense of distributed wireless networks. Adopting wireless Ad Hoc network as the application scenario, the mobile embedded wireless node is taken as the computing platform. The matching process is divided into pre-filtering stage and verification stage. Pre-processing stage filters some of the unsatisfied entries. During the verification stage, according to the result of the pre-processing stage Simplify entry verification. Experiments show that the computational efficiency of exact matching can reach an average of more than 82.1%. The matching scheme can effectively detect and control the data packets and has good applicability for medium-scale or large-scale distributed wireless nodes.