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Multiplicative Partially Homomorphic CRT Secret Sharing
Nov. 1, 2022, 2:30 a.m. |
IACR News www.iacr.org
ePrint Report: Multiplicative Partially Homomorphic CRT Secret Sharing
Yaniv Kleinman, Shlomi Dolev
A new CRT-based positive (non-zero) secret-sharing scheme with perfect information-theoretic (PIT) security and multiplicative homomorphism is presented. The scheme is designed to support the evaluation of multiplications of non-zero secrets of multiplicative groups.
Our CRT-based scheme is partially homomorphic, supporting homomorphic multiplications. Nevertheless, our scheme has the potential to be regarded as fully homomorphic for practical scenarios, such as bounded-sized multi-cloud databases.
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