• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2013, Vol. 35 ›› Issue (3): 85-91.

• 论文 • 上一篇    下一篇

BitTorrent模型的信任机制研究

张新有,范会波   

  1. (西南交通大学信息科学与技术学院,四川 成都 610031)
  • 收稿日期:2011-11-04 修回日期:2012-03-01 出版日期:2013-03-25 发布日期:2013-03-25
  • 基金资助:

     国家自然科学基金联合资助基金项目(U0970122);中央高校基本科研业务费专项资金科技创新项目资助(SWJTU09CX040)

Research on trust mechanism of BitTorrent model   

ZHANG Xinyou,FAN Huibo   

  1. (School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031,China)
  • Received:2011-11-04 Revised:2012-03-01 Online:2013-03-25 Published:2013-03-25

摘要:

BitTorrent下载模型得到普遍的应用,但节点缺乏控制,存在虚假资源等安全性问题。针对BitTorrent下载模型的特点,分析了BitTorrent模型的安全问题所在及已有的BitTorrent安全防范机制,结合P2P技术中的信任模型思想,改进BitTorrent安全机制,优化文件的拆分和整合算法,提高下载资源的成功率。仿真实验表明,与传统BitTorrent下载模型相比,改进后的模型能较快发现网络中的虚假资源,具有更高的下载成功率。

关键词: BitTorrent, 安全机制, 信任模型

Abstract:

With the wide application of the BitTorrent download model,the problems of lacking peers control measures and existing fake resources arise seriously.The characteristics,security problems and existing security mechanisms of BitTorrent model are analysed.Combining with the idea about the trust model in P2P technology,this paper improve the security mechanism of BitTorrent,optimize the file splitting and integrating algorithms.The simulation results show that the proposed model can find fake resources rapidly and increase the probability of downloading files successfully.

Key words: BitTorrent;security mechanism;trust model