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