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1、ACOMPARISONOFSESAMEANDSSLFORINTRANETANDINTERNETSECURITYPaulAshleyMarkVandenwauverJorisClaessensInformationSecurityResearchCenterKatholiekeUniversiteitLeuvenSchoolofDataCommunicationsDept.Elektrotechniek,ESAT-COSICQueenslandUniversityofTechnologyKardinaa
2、lMercierlaan94GPOBox2434,Brisbane-AUSTRALIAB-3001Heverlee-BELGIUMTel.+61738641940Tel.+3216321134Fax+61732212384Fax.+3216321986ashley@ t.qut.edu.aumark.vandenwauver@esat.kuleuven.ac.bejoris.claessens@esat.kuleuven.ac.beAbstractInrecentyearstherehasbeenap
3、henomenalincreaseintheuseofnetworking.BothInternetandIntranetshavebecomeastandardinfrastructuretoexchangeinformation.Duetotheirsuccessithasbecomepossibletoo erservicesthatwereunthinkable veyearsago:electroniccommerce,distancelearning,remotelibraries,etc
4、.Cryptographicsolutionsareessentialtoprotectcomputerassetsandmorespeci callyforelectroniccommercetobecomesuccessful.Moreover,thefuturegrowthoftheInternetdependsonhowwellitisorwillbesecured.Twoproposalsforprovidingcryptographicprotectionfornetworksarethe
5、SESAMEse-curityarchitectureandtheSSLsolution.Thepurposeofthispaperistocomparethesetwosolutions:wherethey tintheTCP/IPmodel,whatsecurityservicestheyprovide,whatcryptographictechnologyisusedbyeachsolution,theappli-cationssupported,theavailabilityand nally
6、adescriptionoftheirlimitations.Thepaper nishesbyintroducingtwoschemesfortheintegrationofSESAMEandSSL.KeywordsSESAME,SSL,Intranet,Internet,networksecurity1IntroductionIntranetsandtheInternetarecorecomponentsofmostorganisations'commu-nicationsinfrastructu
7、re.TheInternetespeciallyisseenasane ectivewaytoexchangeinformationandmoreimportantlyasamediumforelectroniccom-merce.FuturegrowthintheuseofIntranetsandtheInternetdependsveryheavilyonhowwelltheycanbesecured.NetworkscanbesecuredbysecuringAppearedinProceedi
8、ngsofthe6thIFIPWG11.1&11.2workingconference,Vienna-Budapest,September2,1998,pp60{69.particularapplicationsliketelnet,ftp,e-mail(PGP,S/MIME),orcorporateapplications.ItisalsopossibletosecureotherlayersinthenetworkinghierarchylikeIP
