Hybrid Quantum Protocols for Secure Multiparty Summation and Multiplication Article Swipe
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· 2020
· Open Access
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· DOI: https://doi.org/10.1038/s41598-020-65871-8
· OA: W3033928465
The summation and multiplication are two basic operations for secure multiparty quantum computation. The existing secure multiparty quantum summation and multiplication protocols have ( n , n ) threshold approach and their computation type is bit-by-bit, where n is total number of players. In this paper, we propose two hybrid ( t , n ) threshold quantum protocols for secure multiparty summation and multiplication based on the Shamir’s secret sharing, SUM gate, quantum fourier transform, and generalized Pauli operator, where t is a threshold number of players that can perform the summation and multiplication. Their computation type is secret-by-secret with modulo d , where d , n ≤ d ≤ 2 n , is a prime. The proposed protocols can resist the intercept-resend, entangle-measure, collusion, collective, and coherent quantum attacks. They have better computation as well as communication costs and no player can get other player’s private input.
