A multi-gigabit virus detection algorithm using ternary CAM

  • Authors:
  • Il-Seop Song;Youngseok Lee;Taeck-Geun Kwon

  • Affiliations:
  • Dept. of Computer Engineering, Chungnam National University, Deajeon, Korea;Dept. of Computer Engineering, Chungnam National University, Deajeon, Korea;Dept. of Computer Engineering, Chungnam National University, Deajeon, Korea

  • Venue:
  • CIS'05 Proceedings of the 2005 international conference on Computational Intelligence and Security - Volume Part II
  • Year:
  • 2005

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Abstract

During the last few years, the number of Internet worms and viruses has significantly increased. For the fast detection of Internet worms/viruses, the signature-based scheme with TCAM is necessary for the network intrusion detection system (NIDS). However, due to the limit of the TCAM size, all the signatures of Internet worms/viruses cannot be stored. Hence, we propose a two-phase content inspection algorithm which can support a large number of long signatures at TCAM. From the simulation results, it is shown that our algorithm for TCAM provides a fast virus-detection capability at line rate of 10Gbps (OC192).