Netinfo Security ›› 2018, Vol. 18 ›› Issue (10): 45-50.doi: 10.3969/j.issn.1671-1122.2018.10.007

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Improvement of Selection Operator in Multithreading Model for Multimedia Packets in NIDS

Xu ZHAO1,2(), Guangqiu HUANG1, Yanpeng CUI3, Mingming WANG2   

  1. 1. School of Management,Xi’an University of Architecture & Technology,Xi’an Shannxi 710055,China
    2. School of Computer Science,Xi’an Polytechnic University,National and Local Joint Engineering Research Center for Advanced Networking & Intelligent Information Service,Xi’an Shannxi 710048,China
    3. School of Cyber Engineering,XIDIAN University,Xi’an Shannxi 710071,China
  • Received:2018-02-20 Online:2018-10-10 Published:2020-05-11

Abstract:

Omission is inevitable, when the network traffic exceeds the load capacity of network intrusion detection system (NIDS). In this case, dangerous packets should be given priority to processing. Since the large proportion of multimedia packets in traffic, the multithreading model for multimedia packets has been proposed in NIDS. In this paper, the selection operator is improved, and new processing steps in the model is proposed. When omission occurs, this improved model can choose more dangerous multimedia packets for processing within the maximum processing capacity of different threads. Experimental results indicate that this model can help NIDS to improve its detection rate for dangerous multimedia packets effectively.

Key words: intrusion detection, multimedia packets, genetic algorithm, selection operator, the model of choosing danger

CLC Number: