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ID:7513181
大小:204.80 KB
页数:12页
时间:2018-02-17
《privacy preserving indexing of documents on the network》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、Privacy-PreservingIndexingofDocumentsontheNetworkMayankBawaRobertoJ.BayardoJr.RakeshAgrawalStanfordUniversityIBMAlmadenResearchCenterStanford,CA94305SanJose,CA95120bawa@db.stanford.edufbayardo,ragrawalg@almaden.ibm.comAbstract1IntroductionWhileprivateandsemi-privateinformationont
2、henet-workhasgrownrapidlyinrecentyears,mechanismsWeaddresstheproblemofprovidingprivacy-forsearchingthisinformationhavefailedtokeeppace.preservingsearchoverdistributedaccess-Auserfacedwiththeproblemoflocatinganaccess-controlledcontent.Indexeddocumentscancontrolleddocumentmusttypic
3、allyidentifyandindi-beeasilyreconstructedfromconventional(in-viduallysearcheachrelevantrepository,assumingofverted)indexesusedinsearch.Theneedtocoursetheuserknowsandrememberswhichreposito-avoidbreachesofaccess-controlthroughtheriesarerelevant!indexrequirestheindexhostingsitetobeT
4、helackoftoolsforsearchingaccess-controlledcon-fullysecuredandtrustedbybyallparticipat-tentonthenetworkstemsfromtheconsiderabledif-ingcontentproviders.Thisleveloftrustiscultyincreatingasearch-enginethatindexestheimpracticalintheincreasinglycommoncasecontentwhilerespectingthesecur
5、ityandprivacyre-wheremultiplecompetingorganizationsorin-quirementsofthecontentproviders.Contemporarydividualswishtoselectivelysharecontent.Wesearchengines[4,16,22]buildinvertedindexesthatproposeasolutionthateliminatestheneedofmapakeywordtoitspreciselocationsinanindexedsuchatruste
6、dauthority.Thesolutionbuildsdocument.Theindexeddocumentcanthusbeeasilyacentralizedprivacy-preservingindexincon-reconstructedfromtheindex.Conferredwithknowl-junctionwithadistributedaccess-controlen-edgeofeverysearchabledocument,thetrustrequiredforcingsearchprotocol.Thenewindexpro-
7、ofasearchengineoveraccess-controlledcontentgrowsvidesstrongandquantiableprivacyguaran-rapidlywitheachparticipatingprovider.Thisenor-teesthatholdeveniftheentireindexismademoustrustrequirement,coupledwiththepotentialforpublic.Experimentsonareal-lifedatasetval-acompletebreachofacce
8、sscontrolbywayofmaliciousidateperformanc
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