Architectures for Bit-Split String Scanning in Intrusion Detection

  • Authors:
  • Lin Tan;Timothy Sherwood

  • Affiliations:
  • University of Illinois, Urbana-Champaign;University of California, Santa Barbara

  • Venue:
  • IEEE Micro
  • Year:
  • 2006

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Abstract

String matching is a critical element of modern intrusion detection systems because it lets a system make decisions based not just on headers, but actual content flowing through the network. Through careful codesign and optimization of an architecture with a new string matching algorithm, the authors show it is possible to build a system that is almost 12 times more efficient than the currently best known approaches.