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Plausible deniability for privacy-preserving data synthesis (2212.06604v1)

Published 13 Dec 2022 in cs.CR

Abstract: In the field of privacy protection, publishing complete data (especially high-dimensional data sets) is one of the most challenging problems. The common encryption technology can not deal with the attacker to take differential attack to obtain sensitive information, while the existing differential privacy protection algorithm model takes a long time for high-dimensional calculation and needs to add noise to reduce data accuracy, which is not suitable for high-dimensional large data sets. In view of this situation, this paper designs a complete data synthesis scheme to protect data privacy around the concept of "plausible denial". Firstly, the paper provides the theoretical support for the difference between "plausible data" and "plausible data". In the process of scheme designing, this paper decomposes the scheme design into construction data synthesis module and privacy test module, then designs algorithm models for them respectively and realizes the function of privacy protection. When evaluating the feasibility of the scheme, the paper selects the Results of the 2013 community census in the United States as the high-dimensional data set, uses the simulation program that is based on Python to test and analyzes the efficiency and reliability of the data synthesis scheme. This portion focuses on the evaluation of the privacy protection effectiveness of the scheme.

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