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Practical Private-key Fully Homomorphic Encryption in Rings

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JournalGroups Complexity Cryptology
DateE-pub ahead of print - 19 Apr 2018
DatePublished (current) - 1 May 2018
Issue number1
Volume10
Number of pages10
Pages (from-to)17-27
Early online date19/04/18
Original languageEnglish

Abstract

We describe a practical fully homomorphic encryption (FHE) scheme based on homomorphisms between rings and show that it enables very efficient computation on encrypted data. Our encryption though is private-key; public information is only used to operate on encrypted data without decrypting it. Still, we show that our method allows for a third party search on encrypted data.

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