帶關(guān)鍵詞檢索公鑰加密技術(shù)的研究與實(shí)現(xiàn).pdf

1、暨南大學(xué)碩士學(xué)位論文帶關(guān)鍵詞檢索公鑰加密技術(shù)的研究與實(shí)現(xiàn)姓名：張蓓申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)軟件與理論指導(dǎo)教師：王曉明20100401IIAbstractWiththerapiddevelopmentofinteranumberofcompaniesindividualshavesteddataonathirdpartyserver.Howtoensuretheconfidentialityprivacyofprivatedatah

2、asbecomeanurgentproblem.Encryptionisaneffectivemeansofprotectingtheconfidentialityprivacyofdatabutretrievalontheencrypteddataisaverydifficulttask.Particularlyduetonontrustedenvironmenthowtosearchonencrypteddataefficientl

3、ycausedwidespreadconcern.Thussearchableencryptionhasbecomeahottopicinrecentyears.SearchableencryptioncanbedividedintosymmetricencryptionwithkeywdsearchPublickeyEncryptionwithKeywdSearch(PEKS).Symmetricencryptionwithkeywd

4、searchissimplehashighefficiencybutcannotrealizetheprivatesearchfthirdpartydata.ThePublickeyEncryptionwithKeywdSearchcanrealizetheprivatesearchfthirdpartydatabutisinefficient.Thispapermainlystudiessearchableencryption.Sin

5、cegreatcomputationofpairingsinPEKSschemesarestilltimeconsuminginefficient，thispaperproposesameefficientPEKSscheme.ThenewPEKSschemenotonlyretainstheadvantagesofsymmetricencryptionwithkeywdsearchsuchassimplenesshighefficie

6、ncybutalsocanrealizetheprivatesearchfthirdpartydata.ThenewPEKSschemehasbroadapplicationprospects.Itcanbeappliedinpracticalsystemssuchasemailsystemauditlogsetc.Intheendthispaperalsousesthepopularobjectientedsoftwaredevelo

7、pmenttoolJBuilder6.0toimplementanencryptionmailsystembasedonthenewPEKSschemecompletesthecomparingexperiments.ExperimentsshowthatcomparingwithexistingPEKSschemesotherimprovedschemesthisschemehastheadvantagesofsimplenesshi