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Efficient quantum private comparison protocol based on one direction discrete quantum walks on the circle 被引量:1
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作者 Jv-Jie Wang Zhao Dou +2 位作者 Xiu-Bo Chen yu-ping lai Jian Li 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第5期150-156,共7页
We propose an efficient quantum private comparison protocol firstly based on one direction quantum walks.With the help of one direction quantum walk,we develop a novel method that allows the semi-honest third party to... We propose an efficient quantum private comparison protocol firstly based on one direction quantum walks.With the help of one direction quantum walk,we develop a novel method that allows the semi-honest third party to set a flag to judge the comparing result,which improves the qubit efficiency and the maximum quantity of the participants’secret messages.Besides,our protocol can judge the size of the secret messages,not only equality.Furthermore,the quantum walks particle is disentangled in the initial state.It only requires a quantum walks operator to move,making our proposed protocol easy to implement and reducing the quantum resources.Through security analysis,we prove that our protocol can withstand well-known attacks and brute-force attacks.Analyses also reveal that our protocol is correct and practical. 展开更多
关键词 quantum private comparison protocol one direction quantum walks EFFICIENCY brute-force attack
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Efficient quantum private comparison protocol utilizing single photons and rotational encryption 被引量:1
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作者 Tian-Yi Kou Bi-Chen Che +3 位作者 Zhao Dou Xiu-Bo Chen yu-ping lai Jian Li 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第6期221-227,共7页
As a branch of quantum secure multiparty computation,quantum private comparison is applied frequently in many fields,such as secret elections,private voting,and identification.A quantum private comparison protocol wit... As a branch of quantum secure multiparty computation,quantum private comparison is applied frequently in many fields,such as secret elections,private voting,and identification.A quantum private comparison protocol with higher efficiency and easier implementation is proposed in this paper.The private secrets are encoded as single polarized photons and then encrypted with a homomorphic rotational encryption method.Relying on this method and the circular transmission mode,we implement the multiplexing of photons,raising the efficiency of our protocol to 100%.Our protocol is easy to realize since only single photons,unitary operation,and single-particle measurement are introduced.Meanwhile,the analysis shows that our protocol is also correct and secure. 展开更多
关键词 quantum private comparison rotational encryption polarized single photons EFFICIENCY
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