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Colmade: Collaborative Masking in Auditable Decryption for BFV-based Homomorphic Encryption
2022
Information Hiding and Multimedia Security Workshop
This paper proposes a novel collaborative decryption protocol for the Brakerski-Fan-Vercauteren (BFV) homomorphic encryption scheme in a multiparty distributed setting, and puts it to use in designing a leakage-resilient biometric identification solution. Allowing the computation of standard homomorphic operations over encrypted data, our protocol reveals only one least significant bit (LSB) of a scalar/vectorized result resorting to a pool of N parties. By employing additively shared masking,
doi:10.1145/3531536.3532952
dblp:conf/ih/IbarrondoCDO22
fatcat:kcty2b7sxbhmvonb6gtny5fmiu