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Improving Resilience against DDoS Attack in Unstructured P2P Networks

     

摘要

In unstructured peer-to-peer(P2P) systems such as Gnutella,a general routing search algorithm is used to blindly flood a query through network among peers. But unfortunately,malicious nodes could easily make use of the search approach launching distributed denial of service(DDoS) attack which aims at the whole network. In order to alleviate or minimize the bad effect due to behavior of malicious nodes using the flooding search mechanism,the paper proposes a Markov-based evaluation model which exerts the trust and reputation mechanism to computing the level of trustworthy of nodes having the information requested by evaluation of the nodes’ history behavior. Moreover,it can differentiate malicious nodes as early as possible for isolating and controlling the ones’ message transmitted. The simulation results of the algorithm proposed show that it could effectively isolate malicious nodes,and hold back the transmission of vicious messages so that it could enhance tolerance of DDoS based on flooding in Gnutella-like P2P network.

著录项

  • 来源
    《电子科技学刊》 |2007年第1期|18-22+28|共5页
  • 作者

    马新新; 赵洋; 秦志光;

  • 作者单位

    School of Computer Science and Engineering University of Electronic Science and Technology of China;

    School of Computer Science and Engineering;

    University of Electronic Science and Technology of China;

    School of Computer Science and Engineering;

    University o;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 TP393.02;
  • 关键词

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