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1、CloudComputingandCryptographyJamesMarkKellyColumbusStateUniversityCPSC6128Spring2010Kelly_james5@colstate.eduABSTRACTCloudcomputinghasemergedasamodelforenablingconvenient,on-demandnetworkaccesstoasharedsourceofconfigurablecomputingresourcesthatcanberapidlyprovisionedandputint
2、oplacewithminimalmanagementeffortorserviceproviderinteraction.Cloudsolutionsareseenashavingthepotentialtodramaticallyreduceinfrastructurecostsandtoincreasethedevelopmentofapplications.Althoughtheadvantagesofusingcloudsaregreat,therearealsomanyrisksinvolvedwithturningcontrolofyo
3、urdataovertoacloud.Thesecurityreadinessofcloudcomputingisthemostcommoncitedreasonholdingcloudcomputingbackfromwide-spreadadoptionbybusinessandgovernment.Inthispaper,weaddresssomeofthesesecurityconcernsandpresentabriefsurveyofsolutionsbeingproposedinthisregard.Mostofthesolutions
4、proposedsofararepurelyexperimentalinnatureandtherearestillmanyquestionsregardinghowwellthesesolutionswillworkinreal-lifesituations.CategoriesandSubjectDescriptorsD.4.6[SecurityandProtection]:AccessControls,Authentication,CryptographiccontrolsGeneralTermsAlgorithms,SecurityKeywo
5、rdsSaaS(Software-as-a-Service),utilitycomputing,API(applicationprogramminginterface),PaaS(platformasaservice),MSP(managedserviceproviders)1.INTRODUCTIONPermissiontomakedigitalorhardcopiesofallorpartofthisworkforpersonalorclassroomuseisgrantedwithoutfeeprovidedthatcopiesarenotma
6、deordistributedforprofitorcommercialadvantageandthatcopiesbearthisnoticeandthefullcitationonthefirstpage.Tocopyotherwise,orrepublish,topostonserversortoredistributetolists,requirespriorspecificpermissionand/orafee.CloudcomputinghastakentheITworldbystorm,quicklymakingitswayupthe
7、listoftechnologybuzzwords.Cloudcomputingisessentiallythemanagementandprovisionofapplications,informationanddataasaservice.Theseservicesareprovidedovertheinternet,oftenonapay-as-you-gobasedmodel.Cloudcomputingprovidesaconvenientwayofaccessingcomputingservices,independentofthehar
8、dwareyouuseoryourphysicallocation.Itrelievestheneedtos