Controlled quantum dialogue using cluster states

Shih Hung Kao, Tzonelih Hwang

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


This paper presents a new controlled quantum dialogue (CQD) protocol based on the cluster entangled states. The security analyses indicate that the proposed scheme is secure under not only various well-known attacks but also the collusive attack, where the participants may collude to communicate without the controller’s permission. Compared to a previous CQD scheme, which is also robust against the conspiracy attack, the proposed protocol is more efficient in both the qubit efficiency and the hardware requirement.

Original languageEnglish
Article number139
JournalQuantum Information Processing
Issue number5
Publication statusPublished - 2017 May 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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