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Proceedings Paper

A new quantum private comparison protocol
Author(s): Ling Xu; Jing Wang; Hafeez Ahmed; Zhiwen Zhao
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Paper Abstract

For two participants to compare the equality of their private information without revealing them, a new quantum private protocol with the help of semi-honest third party TP is proposed. Different from previous protocols, the four particle |Wf⟩ state and the |χ+⟩ state are utilized in this protocol as the carriers of quantum information and form the entanglement swapping as basic principle. The simple measurement of quantum states and exclusive-or operation are only required to conduct in this protocol. What’s more, this protocol can compare two bits of two participants’ private information in every comparison time. Meanwhile, it needs no unitary operation to fulfill this protocol. This protocol is feasible and efficient to execute through these aspects. In the end, the security of this protocol is analyzed at great length from two kinds of attacks including the outside attack and the participant attack. And the analysis result shows that this protocol can withstand various kinds of attacks and be secure to perform efficiently.

Paper Details

Date Published: 24 October 2017
PDF: 8 pages
Proc. SPIE 10464, AOPC 2017: Fiber Optic Sensing and Optical Communications, 104640M (24 October 2017); doi: 10.1117/12.2284477
Show Author Affiliations
Ling Xu, Beijing Normal Univ. (China)
Jing Wang, Beijing Normal Univ. (China)
Hafeez Ahmed, Beijing Normal Univ. (China)
Zhiwen Zhao, Beijing Normal Univ. (China)

Published in SPIE Proceedings Vol. 10464:
AOPC 2017: Fiber Optic Sensing and Optical Communications
Zi-Sen Zhao; Leping Wei; Yanbiao Liao; Weixu Zhang; Desheng Jiang; Wei Wang; Kenneth T. V. Grattan, Editor(s)

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