security threats scenarios in trust and reputation models

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1、computers&security28(2009)545–556availableatwww.sciencedirect.comjournalhomepage:www.elsevier.com/locate/coseSecuritythreatsscenariosintrustandreputationmodelsfordistributedsystemsFe´lixGo´mezMa´rmol*,GregorioMartı´nezPe´rezDepartamentodeIngenierı´adelaInformacio´nylasComunicaciones,Univer

2、sityofMurcia,30.071Murcia,SpainarticleinfoabstractArticlehistory:TrustandreputationmanagementoverdistributedsystemshasbeenproposedinthelastReceived17December2008fewyearsasanovelandaccuratewayofdealingwithsomesecuritydeficiencieswhichareReceivedinrevisedforminherenttothoseenvironments.Thus,m

3、anymodelsandtheorieshavebeendevelopedin3April2009ordertoeffectiveandaccuratelymanagetrustandreputationinthosecommunities.Accepted1May2009Nevertheless,veryfewofthemtakeintoconsiderationallthepossiblesecuritythreatsthatcancompromisethesystem.Inthispaper,wepresentsomeofthemostimportantandKeyw

4、ords:criticalsecuritythreatsthatcouldbeappliedinatrustandreputationscheme.WewillTrustdescribeandanalyzeeachofthosethreatsandproposesomerecommendationstofaceReputationthemwhendevelopinganewtrustandreputationmechanism.WewillalsostudyhowSecuritythreatssometrustandreputationmodelssolvethem.Thi

5、sworkexpectstobeareferenceguideDistributedenvironmentswhendesigningsecuretrustandreputationmodels.Threatstaxonomyª2009ElsevierLtd.Allrightsreserved.1.IntroductionAnalyzingandstudyingsomeofthesemodels(Josangetal.,2007;SabaterandSierra,2005)werealizedthatthereareTrustandreputationmodelshaveb

6、eenrecentlyproposedbysomesecuritythreatsdirectlyrelatedtothisspecifickindofmanyresearchesasaninnovativesolutionforguaranteeingmodels,whicharecommonandapplicabletomostoftheseaminimumlevelofsecuritybetweentwoentitiesbelongingtoapproaches.adistributedsystemthatwanttohaveatransactionorNeverthel

7、ess,wealsonoticedthateachauthorproposedinteraction.his/herownthreatswhentestingtheirdevelopedmodels,Thus,manystudies,worksandmodelshavebeenrevealingthelackofacommonlyagreedprocessofcheckingdesigned,carriedoutanddevelopedinthisdirection,leadingtherobustnessofat