A Regular Expression Matching Approach to Distributed Wireless Network Security System

Jie Wang ； Yanshuo Yu ； Kuanjiu Zhou

《International Journal of Network Security》 16卷5期 (2014/09) Pp. 382-388

https://doi.org/10.6633/IJNS.201409.16(5).08

並列摘要

There is a growing demand for wireless ad hoc network systems in examining the content of data packages in order to improve network security and application service. Whereas, each distributed wireless node has limited memory and computing power. Since regular expressions offer superior expression power and flexibility, taking advantage of distributed nodes and regular expression collaboratively can be a new perspective for wireless network security strategy. In this paper, a regular expression matching approach is introduced for distributed wireless net- work security system called DREM (Distributed Regular Expression Matching), which divides the matching into two stages: prefiltering stage and verifying stage. Intensive experiments were conducted on Snort and L7-Filter regular expression data sets to verify the system. The experimental results show that our strategy can speed up the efficiency to 1.7 times faster than conventional approaches for wireless security systems. It is also proved by emulation that our approach can be regarded as a fire- wall system and well applied in medium or large scale distributed wireless network systems.

並列關鍵字

DREM ； regular expression ； wireless ad hoc