Intercept-and-resend attack on controlled bidirectional quantum direct communication and its improvement

Chih Hung Chang, Yi Ping Luo, Chun Wei Yang, Tzonelih Hwang

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Recently, Ye and Jiang (Chin Phys Lett 30(4):040305, 2013) proposed two controlled bidirectional quantum direct communication protocols by using a Green–Horne–Zeilinger state and a Bell state. This paper shows that a malicious user, Bob, can obtain the other user’s secret message without the controller’s permission by performing an intercept-and-resend attack. An improvement is then proposed to avoid this problem.

Original languageEnglish
Pages (from-to)3515-3522
Number of pages8
JournalQuantum Information Processing
Volume14
Issue number9
DOIs
Publication statusPublished - 2015 Sep 10

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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