Privacy-aware data management by means of data degradation : making private data less sensitive over time
Heerde van, Harold Johann Wilhelm (2010) Privacy-aware data management by means of data degradation : making private data less sensitive over time. thesis.
|Abstract:||Service-providers collect more and more privacy-sensitive information, even though it is hard to protect this information against hackers, abuse of weak privacy policies, negligence, and malicious database administrators. In this thesis, we take the position that endless retention of privacy-sensitive information will inevitably lead to unauthorized data disclosure. Limiting the retention of privacy-sensitive information limits the amount of stored data and therefore the impact of such a disclosure.
Removing data from a database system is not a straightforward task; data degradation has an impact on the storage structure, indexing, transaction management, and logging mechanisms. To show the feasibility of data degradation, we provide several techniques to implement it; mainly, a combination of keeping data sorted on degradation time and using encryption techniques where possible. The techniques are founded with a prototype implementation and a theoretical analysis.
Electrical Engineering, Mathematics and Computer Science (EEMCS)
|Link to this item:||http://purl.utwente.nl/publications/71594|
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