数据库安全控制模型的研究与应用

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1、大连理工大学硕士学位论文数据库安全控制模型的研究与应用姓名：曾智申请学位级别：硕士专业：计算机技术与应用指导教师：王秀坤20040601AbstractDatabaseisoneofthemostrapidlydevelopingsubjectsinthecomputersceineefieldThedatawhichbeingmanagedandstoredinthedatabasesystemarecurcialresoucesineachdepartment．Soestablishingtheinformationandapplicationsystembas

2、edonthedatabaseareveryimportantinmanyaspectssuchasimprovingbenefitofthecorporation．developingeconomyofthesocietyandimprovinglifeofthepeopleButatthesmnetimeseriousfatalnessandffangibilityarealSOexisted．Thesecuritiesofinformationanddatabasehavebeenensurenceofthehealthydevelopmentofeconom

3、yandsociety．Computersecurityinvolvedmanyaspectsincludingencryption，authentication，andaccesscontrolandinspectingofinbreakIntheaspectofaccesscontrol，researchershaveputforwardsomepoliesandmodelsofaccesscontrolsuchasdiscretionaryaccesscontrol，mandatoryaccesscontr01．Bell—LaPadulapolicyandro

4、le-basedaccesscontr01．Butsomeaimatsinglepolicy．andsomeneglectseveralimportantfactorssuchastask．theseareallneedtoenhanceandimproveon．Thepaplerstudiesthesecuri．tymodelbasedonroleandtaskandthelatticemodelforcontrolsystematically．ThePal：lercombinesthetwosecuritycontrolmodelsanddesignsanImp

5、rovedExtensibleAccessControIManagement(EACMM)model．ThemodeliSarrangementandgradual．Securityadministratorsofdifierentlevelscanextendmainbodymodelandaccesscontrolpurviewintherulerangeonthebaseoftheirownpurview．AtthesametimetheyCanestablishnewsecurityadministratorsandgrantthemcorrespondin

6、gmanagingpurview．ThepaperimprovesaFlexibleExtensibleAnthorizationLanguage(FEAL)denotingmultipleaccesspoliciesThelanguagedescribesdataaccessformallyadoptingexpressingwayofextendedlogicprogram．SystemsecurityadministratorscandescribemultiplesecuritypoliciesbasedOOsecurityrequirementofprac

7、ticalapplicationandinthiswayfinishestheaccesstOdatabase．ThePaDerappliesthismanagementmodeltotheresearchofdatabasesecuritymanagementsub．-systemofHeiLongJiangProvinceAnti．FloodDecisionSupportSystemandcarryonacertainextendofpractice．Keywords：securitypoIicy；S(}CUritymodoI：IarticemDdeI；EA