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An Effective Pattern Matching Algorithm for Intrusion Detection

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1 Author(s)
Feng Du ; Zhijiang Coll., Zhejiang Univ. of Technol., Hangzhou, China

In this paper, an improved algorithm based on the BM algorithm: BMD is proposed. BMD algorithm can reduce the space complexity and maintain the time complexity by reducing a pretreatment function and recording the number of times that a bad char found in the pattern. Experiments indicate that the space complexity is reduced by 36% at most. Therefore, the improved algorithm can provide significant improvement in pattern matching performance when using in an IDS.

Published in:

Computer Science and Electronics Engineering (ICCSEE), 2012 International Conference on  (Volume:3 )

Date of Conference:

23-25 March 2012