Multiparty quantum secret sharing of classical messages based on entanglement swapping

Zhan-jun Zhang and Zhong-xiao Man

Phys. Rev. A 72, 022303 – Published 4 August 2005

Abstract

A multiparty quantum secret sharing (QSS) protocol of classical messages (i.e., classical bits) is proposed by using swapping quantum entanglement of Bell states. The secret messages are imposed on Bell states by local unitary operations. The secret messages are split into several parts, and each part is distributed to a separate party so that no action of a subset of all the parties without the cooperation of the entire group is able to read out the secret messages. In addition, dense coding is used in this protocol to achieve a high efficiency. The security of the present multiparty QSS against eavesdropping has been analyzed and confirmed even in a noisy quantum channel.

Received 20 December 2004

DOI:https://doi.org/10.1103/PhysRevA.72.022303

Authors & Affiliations

Zhan-jun Zhang^1,2,* and Zhong-xiao Man²

¹School of Physics and Material Science, Anhui University, Hefei 230039, China
²Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China

^*Corresponding author. Email address: zjzhang@ahu.edu.cn

Comments & Replies

Comment on “Multiparty quantum secret sharing of classical messages based on entanglement swapping”

Song Lin, Fei Gao, Fen-Zhuo Guo, Qiao-Yan Wen, and Fu-Chen Zhu

Phys. Rev. A 76, 036301 (2007)

Reply to “Comment on ‘Multiparty quantum secret sharing of classical messages based on entanglement swapping’ ”

Zhan-jun Zhang and Zhong-xiao Man

Phys. Rev. A 76, 036302 (2007)

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Vol. 72, Iss. 2 — August 2005

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