Multiparty Mediated Semi-Quantum Secret Sharing Protocol

02/13/2021
by   Chia-Wei Tsai, et al.
0

This study proposes the first multiparty mediated semi-quantum secret sharing (MSQSS) protocol to overcome two existing challenges in current semi-quantum secret sharing protocols: (1) dealer must be the quantum user, and (2) classical users must be equipped with Trojan horse detectors. In the proposed MSQSS protocol, a classical dealer can share secrets with multiple classical agents via the help of a dishonest quantum third party. Security analysis is performed to prove that the proposed protocol cannot suffer from a collective attack, a collusion attack, or a Trojan horse attack. Furthermore, the proposed MSQSS protocol is more lightweight than existing SQSS protocols because the classical user is equipped with only two quantum capabilities.

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