Efficient quantum multi-proxy signature

  • Huawang QinEmail author
  • Wallace K. S. Tang
  • Raylin Tso


An efficient quantum multi-proxy signature scheme is proposed, in which the original signatory Alice distributes her authority to several proxy signatories, and then each proxy signatory can sign the message for Alice alone. To sign multiple messages, Alice only needs to perform the initializing phase once, and the proxy signatories can use their particles repeatedly. Compared to the existing schemes, our scheme is more efficient in practice.


Quantum signature Proxy signature Multi-proxy signature Quantum cryptography 



This study is supported by Natural Science Foundation of China (Grant No. 61602247) and Natural Science Foundation of Jiangsu Province (Grant No. BK20160840).


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of AutomatizationNanjing University of Science and TechnologyNanjingChina
  2. 2.Department of Electronic EngineeringCity University of Hong KongKowloonHong Kong
  3. 3.Department of Computer ScienceNational Chengchi UniversityTaipeiTaiwan

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