Multi-party semiquantum private comparison of size relationship with d-dimensional Bell states

In this paper, we utilize d -dimensional Bell states to construct a multi-party semiquantum private comparison (MSQPC) protocol with two supervisors, which can determine the size relationship of more than two classical users’ private inputs under the control of two supervisors within one round imple...

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Bibliographic Details
Published inEPJ quantum technology Vol. 10; no. 1; p. 10
Main Authors Lian, Jiang-Yuan, Li, Xia, Ye, Tian-Yu
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2023
Springer Nature B.V
Subjects
Cryptography
Equality
Nanotechnology and Microengineering
Physics
Physics and Astronomy
Protocol
Quantum entanglement
Quantum Information Technology
Quantum Physics
Spintronics
Supervisors
Third party
Semi-honest third party
Size relationship
dimensional Bell states
Multi-party semiquantum private comparison
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Summary:In this paper, we utilize d -dimensional Bell states to construct a multi-party semiquantum private comparison (MSQPC) protocol with two supervisors, which can determine the size relationship of more than two classical users’ private inputs under the control of two supervisors within one round implementation. The two supervisors, i.e., one quantum third party (TP) and one classical TP, are both semi-honest, which means that they can misbehave at their own wishes but are not permitted to conspire with anyone else. Neither quantum entanglement swapping nor unitary operations are required in the proposed MSQPC protocol. The security analysis certifies that the proposed MSQPC protocol can overcome both the outside attacks and the participant attacks.
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ISSN:2662-4400
2196-0763
DOI:10.1140/epjqt/s40507-023-00167-0