management of computing and information systems--- security and protectionnew

management of computing and information systems--- security and protectionnew

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時間：2019-03-08

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1、SECURITYCONCEPTSFORCORPORATENETWORKSRolfOppligerDieterHogrefeUniversityofBerneInstituteforComputerScienceandAppliedMathematicsLanggassstrasse51CH-3012Berne,SwitzerlandTel.+41316314903Fax.+41316313965Internet:foppliger,hogrefeg@iam.unibe.chCRCategoryandSubjectDescriptor:C.2.0[ComputerSystemsOrga

2、niza-tion]:Computer-CommunicationNetworks

3、general;K.6.5[ComputingMilieux]ManagementofComputingandInformationSystems

4、securityandprotectionGeneralTerms:Management,Security,StandardizationAdditionalKeyWords:CorporateNetwork,OSI,SecurityArchitectureAbstractThecurrent,widespreaduseofcomputernetworks

5、hasledtoincreasedconcernsaboutsecurity.Thispaperdealswithnetworksecurityingeneral,andconcentratesoncorporatenetworksinparticular.Amethodtodevelopsecurityconceptsforcorporatenetworksisintroduced,andstepwisere ned.11IntroductionItisassumedthatthereaderofthispaperisfamiliarwiththefundamentalsofcom

6、puternetworks,opensystems,andOSInetworks.Acomputernetworkconsistsofinterconnectedcomputersystemsthatcaneitherbeclosedoropen.Closedsy-stemsareproprietary,usuallybeingabletocommunicateonlywithsystemsofthesamemanufacturer.Inusingstandardizedprotocolstoprovidestandardizedservi-ces,opensystemsarefre

7、etocommunicatewithotheropensystems,forminganOSInetwork(OpenSystemsInterconnection).OSIstandardsarebeingdevelopedbytheJointTechnicalCommittee1(JTC1)oftheInternationalStandardsOrganization(ISO),andtheInternationalElectrotechnicalCommission(IEC).Corporatenetworksusepublicservicestointerconnectgeog

8、raphicallydistributedlocalareanetworksandprivatebranchexchanges.Publicservicesareo eredinwideareanetworks;examplesareleasedlines,circuitswitchedlines,andservicesthatareprovidedinpacketswitcheddatanetworks[OS94].Asecurityconceptisneededtomakeacorporatenetworkcomparablysecure[Opp92,OH92,OH93].Ame

9、thodtodevelopsecurityconceptsforcorporatenetworksisintroducedinthispaper.Itisorganizedasfollows:Possibleattacksareoutlinedinsectiontwo.Themethodisshortlydescribedinsectionthree,andstepwisere nedinsectionsfourand ve.Conclusionsared

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