p2p网络信任模型的研究

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1、t≯^fI北京邮电大学硕上学位论文TheResearchofT】rIlstModelofPeer-to—PeernetworkABSTRACTP2Pnetworkisanewlyemergjngcomputingmodelsucceedingconventionalclient／server(c／s)model．EveryPeernodeinP2Pnetworkisequal，whichactsasbothaclientandaserver．ParticularlFtheP2Pnetworksarewiththeabsenceofcentralcontrolan

2、dglobalinforillation．ThecharactersofopenanddistributedarethemostimportantadvantagesofP2Pnetwork．butwhichalsobringachallengetoP2PSinceP2PenvironmentiSopenanddynamicinnature．trustmechanismsinsocialnetworkscanbeusedtobuildtrustinpeersforsafeguardinginteraction．ThemainworkofthispaperiSto

3、putforwardtoaP2Psecuritymodelbasedonthetrustandreputation，onthebasisoftheresearchofdevelopmentoftheP2PnetworkandtheexistingP2Psecuritymodel．Thismodelcaneffectivelysolveitssecurityissueswhicharebroughtbyitsdistribution．Atlastwesimulatethismodelandanalyzetheperformanceofthemodelunderdi

4、fferentcircumstances．Firstofall，thepaperintroducesthevariousP2Pnetworktopology,andthetypicalapplicationandrelatedsecurityneeds．ThemostbasicsecurityneedofP2PnetworkiSsimplified．Secondly,weputforwardtoaP2PsecuritymodelbasedontrustandreputationaftercomparingthecharacteroftheexistingP2Pn

5、etworksecuritymodel．Finally,thesimulationofthismodeliSachieved．TheanalysisofthesecurityperformanceofthismodeliSdetained，basedonthedifferentnodenumber，maliciousnodenumber．KEYWORDS：p2p，trustmodel，security,time—relatedn^1，，}e，；螺^}，毒气：一j。{掣北京邮电大学硕士学位论文日录目录第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

6、⋯⋯⋯⋯⋯⋯⋯l1．1论文的研究背景和意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯l1．2P2P网络中的安全问题⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。21．3研究现状⋯⋯⋯⋯⋯，⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．31．3．1CAs⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．31．3．2社会网络⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。31．3．3概率估计⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯51．3．4博弈理论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯

7、⋯⋯⋯⋯⋯～61．4论文的主要工作和章节安排⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯：⋯⋯⋯．6第二章P2P网络技术的研究⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．82．1P2P网络的产生和应用⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯82．2P2P网络和传统网络的差别⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯92．3P2P网络的拓扑⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．．1l2．4P2P网络的安全需求⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．152．4．1P2P网络内部缺陷⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。1

8、52．4．2P2P网络外