articleIEEE Communications Surveys & TutorialsJan 1, 2024HYBRID OA

The Evolution of Quantum Secure Direct Communication: On the Road to the Qinternet

DPDong PanGLGui‐Lu LongLYLiuguo YinYSYu‐Bo ShengDRDong Ruan

Beijing Academy of Quantum Information Sciences · University of Southampton · +2 more institutions

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Abstract

Communication security has to evolve to a higher plane in the face of the threat from the massive computing power of the emerging quantum computers. Quantum secure direct communication (QSDC) constitutes a promising branch of quantum communication, which is provably secure and overcomes the threat of quantum computing, whilst conveying secret messages directly via the quantum channel. In this survey, we highlight the motivation and the status of QSDC research with special emphasis on its theoretical basis and experimental verification. We will detail the associated point-to-point communication protocols and show how information is protected and transmitted. Finally, we discuss the open challenges as well as…

Citation impact

144
total citations
FWCI
45.00
Percentile
100%
References
536
Citations per year

Authors

8

Topics & keywords

Topics
Keywords
  • Quantum key distribution
  • Computer science
  • Quantum
  • Quantum information science
  • Quantum cryptography
  • Key (lock)
  • Protocol (science)
  • Scheme (mathematics)
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