Efficient dynamic quantum secret sharing in pre-measurement and post-measurement phases

Jason Lin, Chang-Chi Chen and Chung-Yung Huang

Physica A: Statistical Mechanics and its Applications, 2024, vol. 638, issue C

Abstract: This study introduces a novel dynamic quantum secret sharing (DQSS) protocol that utilizes entanglement swapping, Bell measurements, and single-particle measurements to enable agent addition and revocation in both the pre-measurement and post-measurement phases. Since the dealer is only required to prepare Bell states for execution, the proposed DQSS offers greater flexibility and practicality compared to other existing protocols that rely on multiparticle entangled states and are limited to agent modifications in one phase. Furthermore, the proposed DQSS not only exhibits superior qubit efficiency to other related protocols but also demonstrates resilience against several notable attack methods, including Trojan horse and collusion attacks.

Keywords: Dynamic quantum secret sharing; Bell state; Entanglement swapping; Eavesdropping (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:638:y:2024:i:c:s0378437124001237

DOI: 10.1016/j.physa.2024.129615

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