Abstract

A secure two-party hamming distance computing protocol is proposed based on the secure two-party matrix product protocol; a secure four-party addition protocol, a secure three-party addition protocol and a secure two-party number protocol are proposed based on the additive homomorphic encryption and secure two-party compare protocol. A secure multi-party closest string protocol is presented based on the secure two-party hamming distance computing protocol and a secure multi-party addition protocol. These protocols are based on semi-honest model.

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