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Quantum Cryptography Security

Permutation attack and counterattack on the two-party quantum key agreement over a collective noisy channel

arXiv
Authors: Jun Gu, Tzonelih Hwang

Year

2020

Paper ID

20695

Status

Preprint

Abstract Read

~2 min

Abstract Words

77

Citations

N/A

Abstract

Recently, Yang et al. (Quantum Inf Process 18, 74, 2019) proposed a two-party quantum key agreement protocol over a collective noisy channel. They claimed that their quantum key agreement protocol can ensure both of the participants have equal influence on the final shared key. However, this study shows that the participant who announces the permutation operation can manipulate the final shared key by himself/herself without being detected by the other. To avoid this loophole, an improvement is proposed here.

Why This Paper Matters

  • This paper contributes to the Quantum Cryptography & Security research area in the Quantum Articles archive.
  • It adds a 2020 reference point for readers tracking recent quantum research.
  • Recently, Yang et al.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2009.06871 [2] arXiv https://arxiv.org/abs/2009.06871 [3] Publisher https://arxiv.org/abs/2009.06871

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