Multi-Party Quantum Private Comparison Protocol with an Almost-Dishonest Third Party using GHZ States

Sheng Liang Huang, Tzonelih Hwang, Prosanta Gope

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

This article proposes an innovative quantum private comparison (QPC) protocol for n users using GHZ states, where an almost-dishonest third party (TP) is introduced to assist the participants for comparing their secrets. It is argued that as compared to the existing QPC protocols our proposed scheme has some considerable advantages. First, in the existing QPC protocols, the TP can only to determine whether all participants’ secrets are equal or not. Instead of that, in our proposed scheme a TP can even compare the secrets between any subsects of users. Second, since our proposed scheme is based on GHZ state; hence it can ensure higher efficiency as compared to other existing multi-party QPC protocols on d-dimension photons.

Original languageEnglish
Pages (from-to)2969-2976
Number of pages8
JournalInternational Journal of Theoretical Physics
Volume55
Issue number6
DOIs
Publication statusPublished - 2016 Jun 1

All Science Journal Classification (ASJC) codes

  • Mathematics(all)
  • Physics and Astronomy (miscellaneous)

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