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Quantum Information Processing

Multi-party quantum private comparison of size relation with d-level single-particle states

  • 01-10-2018
Published in:
Authors
Chong-Qiang Ye
Tian-Yu Ye
Published in
Quantum Information Processing | Issue 10/2018

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Abstract

In this paper, by using d-level single-particle states, two novel multi-party quantum private comparison protocols for size relation comparison with two semi-honest third parties and one semi-honest third party are constructed, respectively. Here, each protocol can compare the size relation of secret integers from n parties rather than just the equality within one time execution. In each protocol, every third party is assumed to be semi-honest in the sense that she may misbehave on her own but is not allowed to collude with anyone else; and each party employs the qudit shifting operation to encode her secret integer. Each protocol can resist both the outside attack and the participant attack. Specially, each party’s secret integer can be kept unknown to other parties and the third parties. The proposed protocol with two third parties is workable in a stranger environment, as there are no communication and no pre-shared key between each pair of party. The proposed protocol with one third party is workable in an acquaintance environment, as all parties need to share a common private key beforehand.

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previous article Universal quantum encryption for quantum signature using the swap test
next article Secure simultaneous dense coding using -type entangled state
Title
Multi-party quantum private comparison of size relation with d-level single-particle states
Authors
Chong-Qiang Ye
Tian-Yu Ye
Publication date
01-10-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 10/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-2021-8
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