On Technical Security Issues in Cloud Computing.1

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1、2009IEEEInternationalConferenceonCloudComputingOnTechnicalSecurityIssuesinCloudComputingMeikoJensen,JorgSchwenk¨NilsGruschka,LuigiLoIaconoHorstGortzInstituteforITSecurity¨NECLaboratoriesEuropeRuhrUniversityBochum,GermanyNECEuropeLtd.{meiko.jensen

2、joerg.schwenk}@rub.de{nils.gruschka@nw.nec

3、lab.eu,lo_iacono@it.neclab.eu}AbstractTheCloudComputingconceptoffersdynamically)1$3"!'("#("()'!*+&',-)"").4!13#'!scalableresourcesprovisionedasaserviceoverthe/0"$1!2("#("()'!*+&',-/"").Internet.Economicbenefitsarethemaindriverforthe
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4、romisesthereductionofcapitalexpen-diture(CapEx)andoperationalexpenditure(OpEx).71221,8&&'##9'&:101;+'#Inorderforthistobecomereality,however,therearestillsomechallengestobesolved.AmongsttheseareFigure1.Cloudlayersandaccesstechnologiessecurityandtrustissues,sincetheuser’sdatahastobereleased

5、totheCloudandthusleavestheprotection-sphereofthedataowner.Mostofthediscussionsonas-a-Service(SaaS).ToaccesstheseCloudservices,thistopicsaremainlydrivenbyargumentsrelatedtotwomaintechnologiescanbecurrentlyidentified.Weborganisationalmeans.Thispaperfocussesontechni-Servicesarecommonlyusedtop

6、rovideaccesstoIaaScalsecurityissuesarisingfromtheusageofCloudservicesandWebbrowsersareusedtoaccessSaaSservicesandespeciallybytheunderlyingtechnologiesapplications.InPaaSenvironmentsbothapproachesusedtobuildthesecross-domainInternet-connectedcanbefound.collaborations.Alloftheselayerscomewi

7、ththepromisetoreduce1.Introductionfirstofallcapitalexpenditures(CapEx).ThisincludesreducedhardwarecostsintheIaaSlayerandreducedThenewconceptofCloudComputingoffersdy-licensecostsinalllayers.EspeciallyintheIaaSlayeritnamicallyscalableresourcesprovisionedasaserviceisnotrequiredanymoretoengine

8、ertheowndatacenterovertheInternetandthereforepromisesalotofforpeakperformancecases,whichoccuringeneraleconomicbenefitstobedistributedamongitsadopters.veryseldomandwhichusuallyresultinapoorutiliza-Dependingonthetypeofresourcesprovidedbythetionoftheavailableresources.A