Storage

Fragmentation and Encryption to Enforce Privacy in Data Storage

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Executive Summary

Privacy requirements have an increasing impact on the realization of modern applications. Technical considerations and many significant commercial and legal regulations demand today that privacy guarantees be provided whenever sensitive information is stored, processed, or communicated to external parties. It is therefore crucial to design solutions able to respond to this demand with a clear integration strategy for existing applications and a consideration of the performance impact of the protection measures. This paper addresses this problem and proposes a solution to enforce privacy over data collections by combining data fragmentation with encryption. The idea behind the approach is to use encryption as an underlying measure for making data unintelligible, while exploiting fragmentation as a way to break sensitive associations between information.

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