TY  - EJOU
AU  - Yan, Lili  
AU  - Chang, Yan  
AU  - Zhang, Shibin  
AU  - Wang, Qirun  
AU  - Sheng, Zhiwei  
AU  - Sun, Yuhua  

TI  - Measure-Resend Semi-Quantum Private Comparison Scheme Using GHZ Class States
T2  - Computers, Materials \& Continua

PY  - 2019
VL  - 61
IS  - 2
SN  - 1546-2226

AB  - 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.
KW  - Quantum private comparison
KW  -  semi-quantum protocol
KW  -  semi-honest third party
KW  -  GHZ class states

DO  - 10.32604/cmc.2019.06222