Abstract
An improved quantum proxy blind signature scheme based on controlled teleportation is proposed in this paper. Genuine seven-qubit entangled state functions as quantum channel. We use the physical characteristics of quantum mechanics to implement delegation, signature and verification. Security analysis shows that our scheme is unforgeability, undeniability, blind and unconditionally secure. Meanwhile, we propose a trust party to provide higher security, the trust party is costless.
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Acknowledgements
This work is supported by the National Natural Science Foundation of China (Grant Nos. 61402275, 61402015, 61273311), the Natural Science Foundation of Shaanxi Province (Grant No.2015JM6263), and the Fundamental Research Funds for the Central Universities(Grant No.GK201402004).
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Yang, YY., Xie, SC. & Zhang, JZ. An Improved Quantum Proxy Blind Signature Scheme Based on Genuine Seven-Qubit Entangled State. Int J Theor Phys 56, 2293–2302 (2017). https://doi.org/10.1007/s10773-017-3379-6
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DOI: https://doi.org/10.1007/s10773-017-3379-6