A Distributed Signature Detection Method for Detecting Intrusions in Sensor Systems

Sensors

Ilkyu Kim²  Doohwan Oh²  Myung Kuk Yoon²  Kyueun Yi¹ 

[1] Software Platform R&D Laboratory, LG Electronics Inc., Seoul 137-130, Korea; E-Mail:;School of Electrical and Electronic Engineering, Yonsei University, Seoul 120-749, Korea; E-Mails:

关键词: network intrusion detection system;    multiple pattern matching;    distributed computing;    Wu-Manber;    Snort;   

DOI  :  10.3390/s130403998

来源: mdpi

【 摘 要 】

Sensor nodes in wireless sensor networks are easily exposed to open and unprotected regions. A security solution is strongly recommended to prevent networks against malicious attacks. Although many intrusion detection systems have been developed, most systems are difficult to implement for the sensor nodes owing to limited computation resources. To address this problem, we develop a novel distributed network intrusion detection system based on the Wu–Manber algorithm. In the proposed system, the algorithm is divided into two steps; the first step is dedicated to a sensor node, and the second step is assigned to a base station. In addition, the first step is modified to achieve efficient performance under limited computation resources. We conduct evaluations with random string sets and actual intrusion signatures to show the performance improvement of the proposed method. The proposed method achieves a speedup factor of 25.96 and reduces 43.94% of packet transmissions to the base station compared with the previously proposed method. The system achieves efficient utilization of the sensor nodes and provides a structural basis of cooperative systems among the sensors.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.