JISE

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Journal of Information Science and Engineering, Vol. 24 No. 4, pp. 1229-1239

Network Intrusion Detection Based on Shift-OR Circuit

Huang-Chun Roan, Wen-Jyi Hwang, Wei-Jhih Huang and Chia-Tien Dan Lo⁺
Department of Computer Science and Information Engineering
National Taiwan Normal University
Taipei, 117 Taiwan
^*Department of Computer Science
University of Texas at San Antonio
San Antonio, TX 78249, U.S.A.

This paper introduces a novel FPGA-based signature match co-processor that can serve as the core of a hardware-based network intrusion detection system (NIDS). The key feature of the signature match co-processor is an architecture based on the shift-or algorithm, which employs simple shift registers, or-gates, and ROMs where patterns are stored. As compared with related work, experimental results show that the proposed work achieves higher throughput and less hardware resource in the FPGA implementations of NIDS systems.

Keywords: network intrusion detection system, FPGA implementation, pattern matching, shift-or algorithm, string searching

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