A Secret Information Preservation Scheme Based on Four-qubit Entangled State

  • Man-Mang Xue
  • Jian-Zhong ZhangEmail author
  • Shu-Cui Xie


With the improvement of people’s security awareness, the security of personal information has attracted more and more attention. This paper proposes a scheme that considers the preservation of personal information fundamentally. It is based on quantum cryptography. The scheme uses four-qubit entangled states and unitary operation to preserve or read information. In addition, quantum key distribution and one-time pad are used to ensure the security of message transmission. Finally, security analysis shows that the scheme is feasible.


Four-qubit entangled state Information security Unitary operation Quantum measurement 



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 Nos. 2015JM6263, 2016JM6069), the Fundamental Research Funds for the Central Universities (Grant No. GK201402004), and the Fundamental Research Funds for the Central Universities (Grant No. 2019CSLZ001).


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

Authors and Affiliations

  1. 1.College of Mathematics and Information ScienceShaanxi Normal UniversityXi’anChina
  2. 2.School of ScienceXi’an University of Posts and TelecommunicationsXi’anChina

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