中国物理B ›› 2008, Vol. 17 ›› Issue (9): 3189-3193.doi: 10.1088/1674-1056/17/9/006

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Teleportation attack on the QSDC protocol with a random basis and order

朱甫臣1, 温巧燕2, 高飞3   

  1. (1)National Laboratory for Modern Communications, Chengdu 610041, China; (2)State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; (3)State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China;State Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China
  • 收稿日期:2008-02-19 修回日期:2008-03-19 出版日期:2008-09-08 发布日期:2008-09-08
  • 基金资助:
    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

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)   

  1. a State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China; b State Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China; c National Laboratory for Modern Communications, Chengdu 610041, China
  • Received:2008-02-19 Revised:2008-03-19 Online:2008-09-08 Published:2008-09-08
  • Supported by:
    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

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摘要： 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.

关键词: quantum secure direct communication, quantum cryptography, cryptanalysis, teleportation

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.

Key words: quantum secure direct communication, quantum cryptography, cryptanalysis, teleportation

中图分类号:  (Quantum communication)

  • 03.67.Hk
84.40.Ua (Telecommunications: signal transmission and processing; communication satellites)