Feb. 5, 2024, 2 a.m. |

IACR News www.iacr.org

ePrint Report: Homomorphic sign evaluation using functional bootstrapping with a RNS representation of integers

Philippe Chartier, Michel Koskas, Mohammed Lemou, Florian Méhats

In the context of fully-homomorphic-encryption, we consider the representation of large integers by their decomposition over a product of rings (through the Chinese Remainder Theorem) and introduce a new algorithm for the determination of the sign solely through the knowledge of ring-components. We then prove that our algorithm delivers a correct result with a very high probability.

chinese context encryption eprint report evaluation large product report representation rings sign

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