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Title:
Threshold Cryptosystems Based on 2^k-th Power Residue Symbols
Authors: George Teseleanu
Abstract:In this paper we introduce a novel version of the Joye-Libert cryptosystem that allows users to decrypt without knowing the factorisation of the composite modulus. Then we use our construction as a building block for a threshold decryption protocol of the homomorphic Joye-Libert encryption scheme. Finally, we present several extensions of the threshold cryptosystem.
ePrint: https://eprint.iacr.org/2023/601
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