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Open AccessArticle

Quantum Identity Authentication in the Counterfactual Quantum Key Distribution Protocol

1
Postdoctoral Station of Computer Science and Technology, College of Computer Science, Chongqing University, Chongqing 400044, China
2
Science and Technology on Communication Security Laboratory, Institute of Southwestern Communication, Chengdu 610041, China
3
Chongqing University–Uninversity of Cincinnati Joint Co-op, Chongqing University, Chongqing 400044, China
*
Authors to whom correspondence should be addressed.
Entropy 2019, 21(5), 518; https://doi.org/10.3390/e21050518
Received: 10 April 2019 / Revised: 15 May 2019 / Accepted: 20 May 2019 / Published: 23 May 2019
(This article belongs to the Collection Quantum Information)
In this paper, a quantum identity authentication protocol is presented based on the counterfactual quantum key distribution system. Utilizing the proposed protocol, two participants can verify each other’s identity through the counterfactual quantum communication system. The security of the protocol is proved against individual attacks. Furthermore, according to the characteristics of the counterfactual quantum key distribution system, we propose an authenticated counterfactual quantum key distribution protocol based on a novel strategy of mixing the two types of quantum cryptographic protocols randomly. The authenticated quantum key distribution can also be used to update the extent of the authentication keys. View Full-Text
Keywords: quantum identity authentication; quantum key distribution; counterfactual quantum communication quantum identity authentication; quantum key distribution; counterfactual quantum communication
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MDPI and ACS Style

Liu, B.; Gao, Z.; Xiao, D.; Huang, W.; Zhang, Z.; Xu, B. Quantum Identity Authentication in the Counterfactual Quantum Key Distribution Protocol. Entropy 2019, 21, 518.

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