Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physics Letters A

Comment on: “Three-party quantum secure direct communication based on GHZ states” [Phys. Lett. A 354 (2006) 67]

Fei Gao, Su‐Juan Qin, Qiaoyan Wen, Fu-Chen Zhu

Published Feb 2, 2008• 55 citations
Publisher
DOI
10.1016/j.physleta.2008.01.043

Related papers

Three-party quantum secure direct communication based on GHZ states

Jin Xing-Ri, Xin Ji, Ying-Qiao Zhang +4 more

arXiv:quant-ph/0601125•Physics Letters A•Jan 23, 2006•215 citations

Multiparty Simultaneous Quantum Secure Direct Communication Based on GHZ States and Mutual Authentication

Wenjie Liu, Jingfa Liu, Hao Xiao +2 more

Lecture notes in computer science•Jan 1, 2011•0 citations

Comment on “Improvement of Controlled Bidirectional Quantum Direct Communication Using a GHZ State" [Chin. Phys. Lett. 30 (2013) 040305]

Zhihao Liu, Hanwu Chen

The problem of definite information leakage existing in the controlled bidirectional quantum direct communication protocol using GHZ states [ Chin. Phys. Lett. 23 (2006) 1680 ] was pointed out by Ye and Jiang [ Chin. Phys. Lett. 30 (2013) 040305 ]. Then, they proposed two strategies to improve this security bug. However, if the revised versions are analyzed from the viewpoint of information theory, it can be found that they still have the problem of information leakage. That is, three quarters and one half of the information interchanged by the communication parties are leaked out unknowingly in the first and second revised protocols, respectively.

Chinese Physics Letters•Jul 1, 2013•28 citations

Improvement of Security of Three-Party Quantum Secure Direct Communication Based on GHZ States

Man Zhong-Xiao, Yun‐Jie Xia

A protocol for three-party quantum secure direct communication based on Greenberger–Horne–Zeilinger (GHZ) states was recently proposed by Jin et al. [Phys. Lett. A 354 (2006) 67] By analysing the protocol we find some security loopholes, e.g. one bit of secret messages of a party (Alice in the original paper) can always be leaked straight to the public without any eavesdropping. These problems suggested previously are discussed and possible solutions are presented to improve the security of the original protocol.

Chinese Physics Letters•Jan 1, 2007•75 citations

Comment on “Controlled Bidirectional Quantum Secure Direct Communication with Six-Qubit Entangled States”

Xiangfu Zou, Xin Wang, Zhenbang Rong +3 more

International Journal of Theoretical Physics•Feb 22, 2023•5 citations

Comment on “Quantum Secure Direct Communication with Authentication Expansion Using Single Photons”

Yu‐Guang Yang, Xin Jia, Juan Xia +2 more

International Journal of Theoretical Physics•Jul 24, 2012•8 citations
The problem of definite information leakage existing in the controlled bidirectional quantum direct communication protocol using GHZ states [ Chin. Phys. Lett. 23 (2006) 1680 ] was pointed out by Ye and Jiang [ Chin. Phys. Lett. 30 (2013) 040305 ]. Then, they proposed two strategies to improve this security bug. However, if the revised versions are analyzed from the viewpoint of information theory, it can be found that they still have the problem of information leakage. That is, three quarters and one half of the information interchanged by the communication parties are leaked out unknowingly in the first and second revised protocols, respectively.
A protocol for three-party quantum secure direct communication based on Greenberger–Horne–Zeilinger (GHZ) states was recently proposed by Jin et al. [Phys. Lett. A 354 (2006) 67] By analysing the protocol we find some security loopholes, e.g. one bit of secret messages of a party (Alice in the original paper) can always be leaked straight to the public without any eavesdropping. These problems suggested previously are discussed and possible solutions are presented to improve the security of the original protocol.