外文翻译--web环境下基于角色的访问控制

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1、附录A：英文原文Role-BasedAccessControlfortheWebJohnF.Barkley,D.RichardKuhn,LynneS.Rosenthal,MarkW.Skall,andAnthonyV.Cincotta,NationalInstituteofStandardsandTechnologyGaithersburg,Maryland20899ABSTRACTEstablishingandmaintainingapresenceontheWorldWideWeb(Web),onceasidelineforU.S.industry,hasbecomeak

2、eystrategicaspectofmarketingandsales.ManycompanieshavedemonstratedthatawelldesignedWebsitecanhaveapositiveeffectontheirprofitability.EnablingcustomerstoanswertheirownquestionsbyclickingtheirwaythroughWebpages,insteadofdealingwithoperatorsandvoiceresponsesystems,increasestheefficiencyofthecu

3、stomerinterface.Oneofthemostchallengingproblemsinmanaginglargenetworkedsystemsisthecomplexityofsecurityadministration.ThisisparticularlytruefororganizationsthatareattemptingtomanagesecurityindistributedmultimediaenvironmentssuchasthoseusingWorldWideWebservices.Today,securityadministrationis

4、costlyandpronetoerrorbecauseadministratorsusuallyspecifyaccesscontrollistsforeachuseronthesystemindividually.Role-basedaccesscontrol(RBAC)isatechnologythatisattractingincreasingattention,particularlyforcommercialapplications,becauseofitspotentialforreducingthecomplexityandcostofsecurityadmi

5、nistrationinlargenetworkedapplications.TheconceptanddesignofRBACisperfectlysuitedforuseonbothintranetsandinternets.Itprovidesasecureandeffectivewaytomanageaccesstoanorganization’sWebinformation.ThispaperdescribesaresearchefforttodevelopRBAContheWeb.Thesecurityandsoftwarecomponentsthatprovid

6、eRBACfornetworkedserversusingWebprotocolshavebeenimplementedandaredescribedinthispaper.TheRBACcomponentscanbelinkedwithcommerciallyavailablewebservers,andrequirenomodificationoftheserversoftware.IntroductionEstablishingandmaintainingapresenceontheWorldWideWeb(Web),onceasidelineforU.S.indust

7、ry,hasbecomeakeystrategicaspectofmarketingandsales.Manycompanieshavedemonstratedthatawell-designedWebsitecanhaveapositiveeffectontheirprofitability.EnablingcustomerstoanswertheirownquestionsbyclickingtheirwaythroughWebpages,insteadofdealingwithoperatorsa