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

• 作者: Lili Yan Qirun Wang Shibin Zhang Yan Chang Yuhua Sun Zhiwei Sheng
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: QUANTUM private comparison semi-quantum protocol semi-honest third party GHZ class STATES
• 年，卷（期）: 2019,（8）
• 页码范围: 877-887
• 页数: 11页
• 分类号: TP3

摘要

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.