[CSE]  Advanced Operating Systems 
 COMP9242 2002/S2 
UNSW

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Next: Discretionary Access Control in Up: 12-mungi Previous: SASOS Issues

Subsections

Mungi Security

Two basic kinds of mechanisms:

  • Discretionary access control
    • user-oriented mechanism
    • users determine which of their data should be accessible to others
    • essential for privacy
    • two basic models: access control lists and capabilities
  • Mandatory access control
    • system-oriented mechanism
    • system-wide security policy limits data flow
    • essential for use of untrusted extensions
    • range of models: Denning, Bell-LaPadula, Chinese Wall, role-based....
Mungi has both



Gernot Heiser 2002-10-24