一种基于SaaS的云计算安全模型(英文).pdf

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1、第32卷第6期宁夏师范学院学报(自然科学)VoI．32No．62011年12月JournalofNingxiaTeachersUniversity(NaturalScience)Dec．2011ASecureModelofCloudComputingBasedonSaaSMAXu(SchoolofMathematicsandComputerScience，NingxiaTeachersUniversity，Guyuan，Ningxia756000)Abstract：Cloudcomputingsoftwareservicesenab

2、lecompaniestocutcostsbyoutsourcingcomputati0nsonde—mand．However，clientsofcloudcomputingservicescurrentlyhavenomeanstoverifythec0nfidentialityandintegrityoftheirdataandcomputation．ToaddressthisproblemweproposethedesignofasecHremodelofcloudcomputjngplatform(SCC)．SCCenabl

3、esSoftwareasaService(SaaS)providerstoprovideaclosedboxexecutionenvironmentthatguaranteesconfidentialexecutionofguestvirtualmachines．Moreover，itallowsuserstoattesttotheSaaSDrovideranddeterminewhetherornottheserviceissecurebeforetheylaunchtheirvirtualmachine8．Keywords：Cl

4、oudcomputing；Securemodel：SoftwareasaServiceCLCN：TP391．41DocumentCode：AArticleID：1674—1331(2010)03～0039—07Receiveddate：2011一l0—12Foundationitem：NaturalScienceFoundationofNingxia(NZ11257)；ResearchFundforHigherEducationofNingxia(NGNS201003)；ThekeyScicntificandResearchProj

5、ectofNingxiaTeachersUniversity(ZD2011001)．Biograpgy：MAXu(1971一)，male，vice—professor．1IntrOductiOnitisstoredattheprovider，itcannotbeappliedinCompaniescangreatlyreduceITcostsbyoff-serviceswheredataistobecomputed，sincetheUB—loadingdataandcomputationtocloudcomputingencrypt

6、eddatamustresideinthememoryofthehostservices．Still，manycompaniesarereluctanttodorunningthecomputation．InSoftwareasaServiceso，mostlyduetooutstandingsecureconcerns．Are．(SaaS)cloudservicessuchasGoogleAppEngine，centstudy[]surveyedmorethan500chiefexecutivestheproviderhostsv

7、irtualmachines(VMs)onbehafandITmanagersfoundthatdespitethepotentialben—ofitscustomers，whocandoarbitrarycomputations．efits，executives“trustexistinginternalsystemsoverInthesesystems，anyonewithprivilegedaccesstocloud—basedsystemsduetofearaboutsecurethreatsthehostcanreador

8、manipulateacustomersdata．andlossofcontrolofdataandsystems”．OneoftheConsequently，customerscannotprotecttheirVMsonmosts