Efficient semi-quantum private comparison using single photons

Po Hua Lin, Tzonelih Hwang, Chia Wei Tsai

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


This paper proposes an efficient semi-quantum private comparison protocol (SQPC) using single photons, which allows two classical participants to securely compare the equality of their secret with the help of an almost-dishonest third party. Because of the use of single photons, the SQPC is more practical and the qubit efficiency of the proposed protocol is higher than the existing semi-quantum private comparison protocols. Moreover, the proposed protocol can resist several well-known attacks including outsider and insider’s attacks.

Original languageEnglish
Article number207
JournalQuantum Information Processing
Issue number7
Publication statusPublished - 2019 Jul 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Statistical and Nonlinear Physics
  • Theoretical Computer Science
  • Signal Processing
  • Modelling and Simulation
  • Electrical and Electronic Engineering

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