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Permissions and Inheritance (best viewed in slide show mode)

Permissions and Inheritance (best viewed in slide show mode). Ravi Sandhu Laboratory for Information Security Technology George Mason University www.list.gmu.edu sandhu@gmu.edu. Reference.

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Permissions and Inheritance (best viewed in slide show mode)

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  1. Permissions and Inheritance(best viewed in slide show mode) Ravi Sandhu Laboratory for Information Security Technology George Mason University www.list.gmu.edu sandhu@gmu.edu

  2. Reference • Jason Crampton. “On permissions, inheritance and role hierarchies.” Proceedings of the 10th ACM conference on Computer and communications security, Washington D.C 2003, pages: 85-92 • Several diagrams and text excerpts are taken directly from this paper.

  3. Arrow notation

  4. Administrative scope

  5. Effective roles of permission p up down neutral

  6. Permission Hierarchy

  7. Consistency and redundancy

  8. Simulating BLP (liberal *-property)

  9. Simulating BLP (liberal *-property) Maximal or minimal permission is assigned to exactly one role

  10. Constraints for simulating BLP

  11. Constraints for simulating BLP

  12. Constraints for simulating BLP

  13. Constraints for simulating BLP

  14. Constraints for simulating BLP

  15. Security levels

  16. Security levels

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