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Privacy of Outsourced Data

Abstract : Data outsourced to an external storage server are usually encrypted since there is the common assumption that all data are equally sensitive. The encrypted data however cannot be efficiently queried and their selective release is not possible or require the application of specific solutions. To overcome these problems, new proposals have been recently developed, which are based on a fragmentation technique possibly combined with encryption. The main advantage of these proposals is that they limit the use of encryption, thus improving query execution efficiency. In this paper, we describe such fragmentation-based approaches focusing in particular on the different data fragmentation models proposed in the literature. We then conclude the paper with a discussion on some research directions.
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https://hal.inria.fr/hal-01061071
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Sabrina Capitani Di Vimercati, Sara Foresti. Privacy of Outsourced Data. 5th IFIP WG 9.2, 9.6/11.4, 11.6, 11.7/PrimeLife International Summer School(PRIMELIFE), Sep 2009, Nice, France. pp.174-187, ⟨10.1007/978-3-642-14282-6_14⟩. ⟨hal-01061071⟩

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