Multi-Party Quantum Private Comparison Based on Entanglement Swapping of Bell Entangled States within d-Level Quantum System

In this paper, a multi-party quantum private comparison (MQPC) scheme is suggested based on entanglement swapping of Bell entangled states within d -level quantum system, which can accomplish the equality comparison of secret binary sequences from n users via one execution of scheme. Detailed securi...

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Bibliographic Details
Published inInternational journal of theoretical physics Vol. 60; no. 4; pp. 1471 - 1480
Main Authors Ye, Tian-Yu, Hu, Jia-Li
Format Journal Article
LanguageEnglish
Published New York Springer US 01.04.2021
Springer Nature B.V
Subjects
Elementary Particles
Entangled states
Mathematical and Computational Physics
Physics
Physics and Astronomy
Quantum cryptography
Quantum entanglement
Quantum Field Theory
Quantum Physics
Quantum theory
Qubits (quantum computing)
Sequences
Theoretical
Bell entangled state
Multi-party quantum private comparison
Entanglement swapping
level quantum system
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Summary:In this paper, a multi-party quantum private comparison (MQPC) scheme is suggested based on entanglement swapping of Bell entangled states within d -level quantum system, which can accomplish the equality comparison of secret binary sequences from n users via one execution of scheme. Detailed security analysis shows that both the outside attack and the participant attack are ineffective. The suggested scheme needn’t establish a private key among n users beforehand through the quantum key distribution (QKD) method to encrypt the secret binary sequences. Compared with previous MQPC scheme based on d -level Cat states and d -level Bell entangled states, the suggested scheme has distinct advantages on quantum resource, quantum measurement of third party (TP) and qubit efficiency.
ISSN:0020-7748
1572-9575
DOI:10.1007/s10773-021-04771-7