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Eavesdropping on the quantum dialogue protocol in lossy channel |
| Liu Heng(刘恒)a)†, Zhang Xiu-Lan(张秀兰) b), and Lü Hui(吕辉)a) |
| a Department of Mathematics and Computer Science, Huainan Normal University, Huainan 232038, China; b Department of Physics and Electronic Information, Huainan Normal University, Huainan 232038, China |
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Abstract We present an improved eavesdropping scheme on the quantum dialogue protocol in lossy channel, which is based on the strategies of Wójcik [Phys. Rev. Lett. 90 157901 (2003)] and ZML [Phys. Lett. A 333 46 (2004)] attack schemes. We show that our attack scheme doubles the domain of Eve's eavesdropping and Eve can gain more information of the communication with less risk of being detected. Finally, a possible improvement for the dialogue protocol security is proposed.
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Received: 10 February 2011
Revised: 07 March 2011
Accepted manuscript online:
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PACS:
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03.67.Hk
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(Quantum communication)
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| Fund: Project supported by the Natural Science Foundation of the Anhui Higher Education Institutions of China (Grant No. KJ2011Z359). |
Cite this article:
Liu Heng(刘恒), Zhang Xiu-Lan(张秀兰), and Lü Hui(吕辉) Eavesdropping on the quantum dialogue protocol in lossy channel 2011 Chin. Phys. B 20 070305
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