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Research Challenges in Enterprise Privacy Authorization Language

Research Challenges in Enterprise Privacy Authorization Language. Ninghui Li Department of Computer Science and CERIAS Purdue University. Outline. Enforcement Consistency Expressive power Usability. Enforcement. Objective : an EPAL Policy needs to be enforced when data are accessed.

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Research Challenges in Enterprise Privacy Authorization Language

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  1. Research Challenges in Enterprise Privacy Authorization Language Ninghui Li Department of Computer Science and CERIAS Purdue University

  2. Outline • Enforcement • Consistency • Expressive power • Usability 2

  3. Enforcement • Objective: an EPAL Policy needs to be enforced when data are accessed. • Challenge: it is inefficient to have each data-base access to call an EPAL policy engine. • Research problem: how to translate an EPAL policy into policy configurations in lower-level access control mechanism • e.g., into Virtual Private Database policies 3

  4. Consistency • Objective: needs to ensure that an EPAL policy is sufficient to enforce a higher-level privacy policy (e.g., in P3P) promised to customers • Challenge: lacks a sufficiently expressive higher-level formal language for expressing privacy policies • Research problem: to come up with such a language such that consistency can be checked automatically 4

  5. Expressive power • Objective: needs to ensure that one can express desirable policies in an Enterprise Privacy Authorization Language • Challenge: how to deal with dynamic enterprise environments • how to control who can change which parts of a policy and how • Research problem: to come up with administration models for enterprise privacy management 5

  6. Usability • Problem: needs to ensure that policies can be authored correctly and conveniently • Challenge: policy understanding and policy composition are made difficult by the use of both allow and deny with ordered conflict resolution • Research problem: to measure/improve usability 6

  7. Summary • Many challenges remain in the area of Enterprise Privacy Authorization Language • enforcement • consistency • expressive power • usability • Further research is needed 7

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