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Reexamining the security of fair quantum blind signature schemes

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Abstract

In this paper, we reexamined the security of fair quantum blind signature protocols and found there exists a secure leakage caused by the reuse of signing key. To illustrate it, a new attack strategy is proposed based on unambiguous set discrimination of quantum state. In this attack, the attacker can forge a valid signature for any message when he owns three signatures. Finally, a feasible improved method is proposed to solve this problem.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Grant Nos. 61202451, 61202452, 61370078), the Foundation of Fujian Education Bureau (Grant Nos. JA12062, JA11054), a Program for Innovative Research Team in Science and Technology in Fujian Province University, and a Fujian Normal University Innovative Research Team (Grant No. IRTL1207).

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Authors and Affiliations

  1. School of Mathematics and Computer Science, Fujian Normal University, Fuzhou, 350007, China

    Song Lin & Gong-De Guo

  2. Computer Science Research Institute, School of Computing and Mathematics, University of Ulster, Belfast, BT37 0QB, UK

    Song Lin

  3. State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing, 100876, China

    Chao-Hua Yu

  4. Key Lab of Network Security and Cryptography, Fujian Normal University, Fuzhou, 350007, China

    Gong-De Guo

Authors
  1. Song Lin
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  2. Chao-Hua Yu
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  3. Gong-De Guo
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Correspondence to Song Lin.

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Lin, S., Yu, CH. & Guo, GD. Reexamining the security of fair quantum blind signature schemes. Quantum Inf Process 13, 2407–2415 (2014). https://doi.org/10.1007/s11128-014-0840-9

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  • DOI: https://doi.org/10.1007/s11128-014-0840-9

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