Trojan horse attack free fault-tolerant quantum key distribution protocols

Chun Wei Yang, Tzonelih Hwang

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


This work proposes two quantum key distribution (QKD) protocols - each of which is robust under one kind of collective noises - collective-dephasing noise and collective-rotation noise. Due to the use of a new coding function which produces error-robust codewords allowing one-time transmission of quanta, the proposed QKD schemes are fault-tolerant and congenitally free from Trojan horse attacks without having to use any extra hardware. Moreover, by adopting two Bell state measurements instead of a 4-GHZ state joint measurement for decoding, the proposed protocols are practical in combating collective noises.

Original languageEnglish
Pages (from-to)781-794
Number of pages14
JournalQuantum Information Processing
Issue number3
Publication statusPublished - 2014 Mar

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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