Open Access

ARTICLE

Measure-Resend Semi-Quantum Private Comparison Scheme Using GHZ Class States

by Lili Yan¹, Yan Chang¹, Shibin Zhang¹, Qirun Wang², Zhiwei Sheng¹, Yuhua Sun¹

1 School of Cybersecurity, Chengdu University of Information Technology, Chengdu, 610000, China.
2 School of Engineering and Technology, University of Hertfordshire, Hertford, UK.

*Corresponding Author: Lili Yan. Email: .

Computers, Materials & Continua 2019, 61(2), 877-887. https://doi.org/10.32604/cmc.2019.06222

Abstract

Quantum private comparison is an important topic in quantum cryptography. Recently, the idea of semi-quantumness has been often used in designing private comparison protocol, which allows some of the participants to remain classical. In this paper, we propose a semi quantum private comparison scheme based on Greenberge-Horne-Zeilinger (GHZ) class states, which allows two classical participants to compare the equality of their private secret with the help of a quantum third party (server). In the proposed protocol, server is semi-honest who will follow the protocol honestly, but he may try to learn additional information from the protocol execution. The classical participants’ activities are restricted to either measuring a quantum state or reflecting it in the classical basis{0,1}. In addition, security and efficiency of the proposed schemes have been discussed.

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Citations