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A Secure DBMS Architecture to Preserve Data Privacy, Confidentiality, and Integrity

Halvachi, Hadi | 2013

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44961 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Jalili, Rasool
  7. Abstract:
  8. While data outsourcing provides some benefits, it suffers from new privacy and security concerns, mainly about the confidentiality and integrity of the stored sensitive data, as well as enforcing access control policies. Current solutions to these aims are not comprehensive and consider only one aspect of security requirements. A secure DBMS architecture is introduced that simultaneously considers confidentiality, integrity and access control enforcement requirements. The transparency of security functions from data owner, service providers, and applications facilitates the operationality of the solution.Additionally, a new indexing technique for character encrypted data is proposed that generates indices based on the distribution of characters. Utilizing the differenc of characters occurrence probabilities, the distribution of the result indices has been uniformed. It causes the reduction of false positive and the prevention of inference attacks. In addition to this, an access control-aware indexing technique in which content-driven access policies are enforced, is proposed. The approach not only prevents information leakage due to query processing, but also obviates the need to a separate access control enforcement mechanism. Meanwhile, the overhead associated with updating access control policies is dramatically reduced. Our simulations demonstrate the efficiency of our solutions compared to similar existing proposals
  9. Keywords:
  10. Cryptography ; Access Control ; Outsourcing ; Confidentiality ; Privacy Preserving ; Secure Database Management System (DBMS)Architecture ; Data Integrity

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