中国物理B ›› 2012, Vol. 21 ›› Issue (3): 30306-030306.doi: 10.1088/1674-1056/21/3/030306

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何立宝1 2,黄刘生1 2,杨威2,许瑞2   

  • 收稿日期:2010-10-12 修回日期:2011-08-31 出版日期:2012-02-15 发布日期:2012-02-15
  • 通讯作者: 何立宝,helibao@mail.ustc.edu.cn E-mail:helibao@mail.ustc.edu.cn

Cryptanalysis of fair quantum blind signatures

He Li-Bao(何立宝)a)b)†, Huang Liu-Sheng(黄刘生)a)b), Yang Wei(杨威)b), and Xu Rui(许瑞) b)   

  1. a. National High Performance Computing Center, Department of Computer Science and Technology, University of Science and Technology of China, Hefei 230026, China;
    b. Suzhou Institute for Advanced Study, University of Science and Technology of China, Suzhou 215123, China
  • Received:2010-10-12 Revised:2011-08-31 Online:2012-02-15 Published:2012-02-15
  • Contact: He Li-Bao,helibao@mail.ustc.edu.cn E-mail:helibao@mail.ustc.edu.cn
  • Supported by:
    Project supported by the Major Research Plan of the National Natural Science Foundation of China (Grant No. 90818005), the National Natural Science Foundation of China (Grant Nos. 60903217 and 60773032), and the China Postdoctoral Science Foundation (Grant No. 20090450701).

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Abstract: We investigate the fair quantum blind signature scheme proposed by Wang and Wen [Wang T Y and Wen Q Y 2010 Chin. Phys. B 19 060307], which uses the fundamental properties of quantum mechanics and the availability of a trusted arbitrator. However, in this paper, we find that the protocol cannot satisfy the property of non-forgeability even under the condition that the trusted arbitrator is totally credible. Moreover, a simple feasible suggestion for improving the protocol is proposed.

Key words: fair blind signature, single photons, hash function

中图分类号:  (Quantum cryptography and communication security)

  • 03.67.Dd
03.67.-a (Quantum information) 03.67.Ac (Quantum algorithms, protocols, and simulations) 03.67.Hk (Quantum communication)