Teleportation attack on the QSDC protocol with a random basis and order
Gao Fei(高飞)a)b)†, Wen Qiao-Yan(温巧燕)a), and Zhu Fu-Chen(朱甫臣)c)
aState Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; bState Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China; cNational Laboratory for Modern Communications, Chengdu 610041, China
Abstract The quantum secure direct communication (QSDC) protocol with a random basis and order is analysed and an effective attack, i.e. teleportation attack, is presented. An eavesdropper can obtain half of the transmitted secret bits with the help of this special attack. It is shown that quantum teleportation can be employed to weaken the role of the order-rearrangement encryption at least in a certain circumstance. Meanwhile, a possible improvement on this protocol is proposed, which makes it secure against this kind of attack.
Received: 19 February 2008
Revised: 19 March 2008
Accepted manuscript online:
(Telecommunications: signal transmission and processing; communication satellites)
Fund: Project supported by the National
High Technology Development Program of China (Grant No
2006AA01Z419), the Major Research Plan of the National Natural
Science Foundation of China (Grant No 90604023), the National
Laboratory for Modern Communications Scie
Cite this article:
Gao Fei(高飞), Wen Qiao-Yan(温巧燕), and Zhu Fu-Chen(朱甫臣) Teleportation attack on the QSDC protocol with a random basis and order 2008 Chin. Phys. B 17 3189
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