??RBAC?????? - PowerPoint PPT Presentation

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??RBAC??????

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Title: ??RBAC??????


1
?????????????????
  • ? ? ? ? ?
  • ? ? ? ? ? ?
  • ? ???????
  • ? ? ??? ??
  • 2003.6.

2
??????
  • ??RBAC??????
  • ??????RBAC????
  • RBAC???????
  • ????????????
  • RBAC???????
  • ???????????
  • ?????

3
????
  • RBAC????
  • ??RBAC??????
  • RBAC???????
  • RBAC???????
  • ??

4
????
  • RBAC????
  • ?????????
  • RBAC????RBAC96?ARBAC97
  • ??RBAC??????
  • RBAC???????
  • RBAC???????
  • ??

5
????
  • ??
  • ?????????????
  • ???????,???,Web?????
  • ??
  • ????????????????
  • ?????????????
  • ????
  • ??????????(DAC),??????(MAC)
  • ????????????(RBAC)

6
?????????
  • ??
  • ???????????,????????
  • Web??????????????
  • ????
  • ??????????
  • ?????????????????????
  • ??RBAC??????????
  • ????
  • RBAC96RBAC???? Sandhu et al. 1996
  • ARBAC97RBAC???? Sandhu et al. 1997

7
RBAC????RBAC96 (1)
  • ???RBAC????
  • RBAC0 ??RBAC????
  • RBAC1 ??RBAC0,????????(RH)
  • RBAC2 ??RBAC0,????(Constraints)
  • RBAC3 ????????,???????

8
RBAC????RBAC96 (2)
  • RBAC96??????

9
RBAC????ARBAC97 (1)
  • ????
  • ?RBAC???????????????
  • ???????????
  • ????????????
  • ARBAC97?????????
  • URA97 ????????
  • PRA97 ????????
  • RRA97 ????????

10
RBAC????ARBAC97 (2)
  • ARBAC97??????

11
????
  • RBAC????
  • ??RBAC??????
  • ??RBAC??MDRBAC
  • ??RBAC????MDARBAC
  • ??RBAC????????
  • RBAC???????
  • RBAC???????
  • ??

12
??RBAC?????
  • ???
  • ?????????????
  • ?????????????
  • ????
  • ??????????? ??,??????
  • ???????????????????

13
??RBAC??MDRBAC (1)
  • ??RBAC96???????
  • ????????RBAC96??

14
??RBAC??MDRBAC (2)
  • MDRBAC0
  • ?????U(???),P(???),S(???)
  • d ????????? ,???????,??????????,d
    ??????
  • ??? R ???????????,?
  • ,?????????????
  • ,?????????????
  • ,???????????
  • ,???????????,?

15
??RBAC??MDRBAC (3)
  • MDRBAC1
  • U, P, S, VRi , R, UA, PA, user?MDRBAC0
  • ???VRi????????,??
  • ?????? ?R??????,?? ,?
  • ?????? ?R??????,??
  • ?R??????,?? ? ????
  • ,? ,??? ,? ?
  • ??????????
  • ?????

??ERH??ERHC??,?RH?????
16
??RBAC??MDRBAC (4)
  • MDRBAC2
  • MDRBAC0??????
  • ??????,????MDRBAC0??????????
  • ???MDRBAC2????????
  • ????????????
  • ??????????????????
  • ???????????????

17
??RBAC??MDRBAC (5)
  • MDRBAC3

18
??RBAC????MDARBAC (1)
  • ????
  • DSO???????
  • SSO???DSO??
  • ??????????ARBAC97??
  • ????
  • MDURA
  • MDPRA
  • MDRRA

19
??RBAC????MDARBAC (2)
  • MDURA
  • ??URA97??
  • ?DSO????????????????
  • ??????????????????
  • MDPRA
  • ??PRA97??
  • MDURA?????
  • ?????????PA??

20
??RBAC????MDARBAC (3)
  • MDRRA
  • ??RRA97??
  • ??????????????
  • ????????
  • ????????????VRHi
  • ???????????????
  • ????????????????
  • ????????
  • ????????????ERH
  • ?????????????

21
??RBAC????? (1)
  • ??
  • ???????????????????
  • ?????????RRA???
  • ????
  • ?????????????
  • ????
  • RRA???
  • ????1,????2,????
  • ????

22
??RBAC????? (2)
  • ??????
  • ???????????????
  • ???????
  • ???????RRA?

???? ???? ??????
??? company company
??? filiale company/1filiale
???? ???? ??????
?? manager manager
???? developer manager/2developer
???? salesman manager/2salesman
???? employee manager/2developer/2employee
manager/2salesman manager/2developer/2employee gt
RRA
23
??RBAC????? (3)
  • ????
  • ?????????????????????
  • ??????????

?? ????
????? company/1manager
????? company/1filiale/1manager
????? company/1manager/2developer
????? company/1filiale/1manager/2developer
????? company/1manager/2salesman
????? company/1filiale/1manager/2salesman
????? company/1manager/2developer/2employee
????? company/1filiale/1manager/2developer/2employee
24
??RBAC????? (4)
  • ???WebDaemon??

25
??RBAC????? (5)
  • WebDaemon???TCL??????
  • ??????,????????????
  • ??3??????,???????
  • ????,????,????
  • 8600?????260??????
  • 90????????????????
  • ??????,??????????

26
??RBAC?????
  • ?????RBAC96?ARBAC97??
  • ?????RBAC??????1?????
  • ??????,????,??????
  • ?????????????????
  • ???????????????????RBAC??
  • ???????????????

27
????
  • RBAC????
  • ??RBAC??????
  • RBAC???????
  • RBAC?????
  • RBAC?????
  • RBAC????????
  • RBAC???????
  • ??

28
RBAC???????
  • ??
  • ????????????????
  • ???????????????

29
RBAC?????
  • ?????????????
  • ??????????
  • ??????

30
RBAC????? (1)
  • RBAC????????

31
RBAC????? (2)
  • ?RBAC??????????
  • ?????????
  • ???????????????
  • ??????????
  • ????????
  • ??????
  • ??????
  • ????????

32
RBAC????? (3)
  • ????????
  • ???RBAC?????
  • ??????????
  • ??????
  • ????
  • ????
  • ??????
  • ??????
  • ????
  • ????????

33
RBAC????? (4)
  • ??????
  • ??????????????????????????????
  • (u, r1)?UA,r1 r2,???(u, r2)
  • ?????????????????
  • ????????????
  • ????
  • ??????
  • ????
  • ????????

34
RBAC????? (5)
  • ??????
  • ??????????????????????????????
  • (r2, p)?PA,r1 r2,???(r1, p)
  • ?????????????????
  • ????????????
  • ????
  • ??????
  • ????
  • ????????

35
RBAC????? (6)
  • ????????
  • ???????????????????????????????
  • r1 r2,?r2 r3,???r1 r3
  • ???????????????????
  • ????????????
  • ????
  • ????????

36
RBAC???????
  • ??????????????????
  • ?????????????????
  • ???????
  • ???????????????
  • ????
  • ???????????,????????

37
RBAC???????? (1)
  • ????????
  • ??????????????
  • ????????????????
  • ????2530

???? ???? ????
f_userid ??ID varchar
f_roleid ??ID varchar
f_iscached ???????(Y/N) char
???? ???? ????
f_userid ??ID varchar
f_roleid ??ID varchar
f_directroleid ???f_userid??????? varchar
38
RBAC???????? (2)
  • ??LDAP???
  • ???????????????
  • ???????LDAP???????,?????
  • ????20??

39
????
  • RBAC?????????
  • ??RBAC??????
  • RBAC???????
  • RBAC???????
  • RBAC??????
  • RBAC??????
  • RBAC??????
  • ??

40
RBAC???????
  • ??
  • RBAC??????,????
  • ??????????,????
  • ??
  • ????????
  • ????????????????????
  • ????????
  • ?????????????

41
RBAC?????? (1)
  • ????????
  • ??????????????
  • RBAC??????
  • ???????(??ARBAC97??)

42
RBAC?????? (2)
  • ???
  • ???????User,Role,Permission
  • ??????????????
  • ?????????????
  • ????????????
  • ??????????Role?
  • ???????????????

43
RBAC?????? (3)
  • ??????
  • ?????,?????????
  • ??????,?????????????
  • ????????,????????
  • ??????? (?45???)
  • ????????
  • ??????
  • ???????
  • ????
  • ??????

44
RBAC?????? (4)
  • ???????
  • ?????????,????????
  • ????????,??????
  • ?????????????????
  • ??????? (?29???)
  • ????
  • ????
  • ????
  • ????

45
RBAC?????? (5)
  • ???????
  • AddInheritance(role1, role2, bNeedCheck)
  • ????????,??bNeedCheck??????????
  • DeleteRole(role)
  • ????,?????????????????????,????????????
  • CheckUserPermission(user, perm)
  • ????????,????????????????
  • ?????????????

46
RBAC?????? (1)
  • ???RBAC???????,??
  • ??RBAC??
  • RBAC?????
  • ????
  • ????????????????
  • ?????????????????

47
RBAC?????? (2)
  • ????RBAC??
  • ???????VirtualRole,?????????????????
  • ????????????????
  • ??????????????????????,????????????????

48
RBAC?????? (3)
  • ??RBAC?????
  • ????????????????????
  • ??????????????????????????
  • ??????????????
  • ??????????????

49
RBAC??????
  • ????????
  • ??SQL??????????
  • ??????????????????
  • ??LDAP???
  • ????LDAP?????
  • ????????????????????????
  • ??????????,?WebDaemon???????????????

50
????
  • RBAC????
  • ??RBAC??????
  • RBAC???????
  • RBAC???????
  • ??

51
??
  • ??RBAC??
  • RBAC??????????
  • RBAC?????
  • ???????????????
  • RBAC?????
  • ?????RBAC?????,??????
  • ?????Web??????WebDaemon?????????

52
? ? ? ?!
53
????
54
?????????
  • ??????(DAC) Lampson 1971
  • ???????????,???????
  • ????????????????????
  • ????,????????
  • ??????(MAC) Bell Lapadula 1975
  • ??????,????????????
  • ??/?????????,??/?????????
  • ????,??????,???????
  • ????
  • ?????????,??????

55
??????(DAC)
  • ????
  • ???????????,?????????
  • ??????????????????????
  • ???DAC??
  • Grantee????????????
  • Strict DAC grantee??????
  • Liberal DAC grantee??????
  • ???????????
  • ??????????(revocation)?
  • ?????
  • ?????????
  • ???????????

56
??????(MAC)
  • ??????(security labels)
  • ??(subject)security clearance
  • ??(object)security classification
  • ??????????????,?????
  • ????(s???,o???,??????)
  • Simple security property s??o -gt?(s)gt?(o)
  • Liberal -property s??o -gt?(s)lt?(o)
  • Strict -property s??o -gt?(s)?(o)
  • ?????
  • ????????,?????????
  • ????,????

57
RBAC???????? (1)
  • ??(U) ???????????
  • ??(P) ??????????????????
  • ??(R) ??????????????????
  • ????(UA) ?????????????
  • ????(PA) ?????????????
  • ??(S) ???????????????,?????????

58
RBAC???????? (2)
  • ??????(RH) ???????????
  • ????????????,????????????????
  • ??(Constraints) ??????????,??????
  • ???????????,????
  • ???????????????/??????

59
RBAC??????????
  • ??? RBAC??????DAC?MAC
  • ??????
  • ??????,??????
  • ????????????
  • ?RBAC????????????
  • ????
  • ??????(RBDM)
  • ??RBAC??(TRBAC)
  • ???RBAC??(DRBAC)

60
RBAC??????????
  • RBAC????
  • ????????,Java,CORBA?
  • Web?RBAC??? Park Sandhu 2000
  • ????user-pull/server-pull
  • ????????cookies,CA,LDAP
  • RBAC????
  • ?????,???,?????
  • RBAC??
  • ???Oracle,Sybase?
  • ????Windows,Solaris?
  • WebGetAccess,Tivoli,WebDaemon?

61
RBAC?????????
  • ?WebDaemon???????
  • ??TCL???????????????
  • ???????
  • ????????LDAP??????
  • ????????????????
  • LDAP???????????
  • ???????????
  • ????

62
RBAC?????????
  • ???? P_AddUser(user)
  • ???? P_DeleteUser(user)
  • ???? P_AddResource(res)
  • ???? P_DeleteResource(res)
  • ???? P_AddRole(role)
  • ???? P_DeleteRole(role)
  • ???????? P_AddInheritance(role1, role2)
  • ???????? P_DeleteInheritance(role1, role2)
  • ?????????? P_AddRelationUserRole(user, role)
  • ??????????P_DeleteRelationUserRole(user, role)
  • ??????????P_AddRelationRoleResource(role, res)
  • ??????????P_DeleteRelationRoleResource(role, res)

63
RBAC??????????
  • ????AddUser(user)
  • ???? AddPermission(perm)
  • ???? AddRole(role)
  • ????????1 AddInheritance(prole, crole,
    bNeedCheck)
  • ????????2 AddInheritance(prole, crole)
  • ?????????? AddRelationUserRole(user, role)
  • ?????????? AddRelationRolePermission(role, perm)
  • ???? DeleteUser(user)
  • ???? DeletePermission(perm)
  • ???? DeleteRole(role)
  • ???????? DeleteInheritance(role1, role2)
  • ?????????? DeleteRelationUserRole(user, role)
  • ?????????? DeleteRelationRolePermission(role,
    perm)
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