一种基于t-rbac的访问控制模型研究与应用

《一种基于t-rbac的访问控制模型研究与应用》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、AbstractI‘withtherapidpopul撕zali咖ofncMofkan“tsapplicanont0eVer)『aspedof_sodal；life，thesecurityofnetworkhasbecomeanimportantproblem．Accesscontrolisoneoffivesecurityservicesthatmustbeimplementedinthebasicarchitectureforsecureinformationsystemsdefinedinthesecuritystandard(IS07498—2)byISO．

2、Role-BasedAccessControl(RBAC)isoneofthebestandmostpopularaccesscontrolmodels．ComparedwiththetraditionalDACModelandMACModel，itcanprovidebetterflexibilityandscalability．Basedonthis，aTask-Role—BasedAccessControl(T-P,BAC)modelisbroughtup，whichisintegratedwiththeconceptofroleinRBACandtaskin

3、TBAC．T-RBACcaneffectivelyreduceredundantdataandmaketherelatedmanagementmoreconvenient．However,thelackofconstraintssuchastimenarrowsitsdeploymentinsystemswhereamuchhighersecurityrequirementisneeded．ThethesispresentsastudyonextendedT-RBACmodelinmilitaryenviroment．First，systematicalresear

4、chesonDiscretionaryAccessControl，MandatoryAccessControl，Role—BasedAccessControlandTask-Role-BasedAccessControl，summarizesthecharacterisitic-s’advantagesanddisadvantagesofthem；Then，analysestheespecialrequestinmilitaryenvironmentandputsforwardamilitaryaccesscontrolmodelbasedontaskandrole

5、calledAT-RBACmodel(armyTask-RoleBasedAccessContr01)．Themodelputtemporalconstraintintheprocessofeonferingroleandperformingtaskthatenhancetimecharacteristicofthemodel．Inordertodecreaseinheritancegranularity,wedividetheroleinheritanceintotwoways：opensuccessionandclosesuccession．Atthesamet

6、ime，someconceptsareintroducedinthemodel：rolelevel，taskfraction，taskpriority,dependencyamongtasks．ToRBACmodelsoundlystrengthensconstraintandsatisfytheveracityandsecurityrequest．Finally,inordertoexplainhowtorealizethissystembasedonT-RBACmodel，thethesisimplementsthegivenmodelinMilitaryDic

7、tateAutomatizationSystem．Thethesisdescribestheworkflow,datababasedesignandimportantcodeinthesystem．、^：札，弓颂士学位论文Abstractr}1t、‘Ps：+cqultshowsthatthesystemcanachieveexpectedfunctionofthemodelaswellasitsteasiblity．Kevwords：AccessControl；RBAC；T-RBAC；Role；Task；AT-RBAC吐●●●，I¨●怎东北大学硕士学位论文目录目