Cryptology ePrint Archive: Report 2013/714

Method to secure data in the cloud while preserving summary statistics

Sanchita Barman, Bimal Roy

Abstract: In this paper we propose a method which will preserve sum- mary statistics of data organized in a two way table. We have shown that fully homomorphic encryption is a powerful solution. However it has a number of disadvantages which makes it impractical. We have proposed a Restricted homomorphic encryption method which uses Pailier encryp- tion and order preserving encryption. This new method can be used for practical purposes owing to itís efficiency in terms of both speed and storage.

Category / Keywords: applications / Fully homomorphic encryption, Paillier encryption, Sum- mary statistics, Order preserving encryption, Restricted homomorphic encryption

Date: received 1 Nov 2013

Contact author: sanchita85 at gmail com

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Version: 20131103:190711 (All versions of this report)

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