Efficient multiparty quantum secret sharing based on a novel structure and single qubits

EPJ Quantum Technology

Research

Chia-Ching Yang¹  Yao-Hsin Chou²  Kuo-Chun Tseng³  Shu-Yu Kuo⁴ 

[1] Department of Computer Science and Engineering, National Chung Hsing University, Taichung, Taiwan;Department of Computer Science and Information Engineering, National Chi Nan University, Puli, Taiwan;Department of Computer Science and Information Engineering, National Ilan University, Yilan, Taiwan;Department of Physics and Center for Theoretical Physics, National Taiwan University, Taipei, Taiwan;

关键词: Quantum secret sharing;    Quantum secure direct communication;    Single qubits;   

DOI  :  10.1140/epjqt/s40507-023-00186-x

 received in 2023-01-08, accepted in 2023-07-11,  发布年份 2023

来源: Springer

【 摘 要 】

Quantum secret sharing (QSS) is a significant branch of quantum cryptography and can be widely used in various applications. Quantum secret sharing schemes can be developed by utilizing different features of quantum mechanics, and quantum secure direct communication (QSDC) is an effective way to achieve secret sharing using single qubits. The utilization of QSDC offers certain benefits, such as low cost, high security, and great potential for implementation with current technologies. However, the purpose of QSDC is different from that of QSS, which causes some vulnerabilities, such as dishonest participant attacks. We discover two critical factors that affect the security of traditional protocols. Firstly, they skip a few steps from the QSDC protocol to the QSS protocol. Secondly, the participants have different privileges. This can lead to participants with more privileges engaging in potential attack behavior. In light of these issues, this study proposes a new multiparty QSS scheme to address these vulnerabilities. The proposed protocol ensures the independence of each participant and grants them equal privileges. Analysis results demonstrate that it can defend against malicious attackers, retain the advantages of the QSDC protocol, and further reduce transmission costs. It achieves an excellent balance between security and performance.

【 授权许可】

CC BY   
© The Author(s) 2023

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