Abstract
Recently, Shen et al. (Int. J. Theor. Phys. doi:10.1007/s10773-012-1276-6, 2012) proposed a quantum dialogue with authentication protocol based on Bell states. This study points out that Shen et al.’s protocol suffers from a man-in-the-middle attack. By manipulating the photons and classical information transmitted between two communicants, an attacker can not only pass the mutual identity authentication, but also obtain their secret messages and new authentication keys without being detected.
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The authors would like to thank the National Science Council of the Republic of China, Taiwan for financially supporting this research under Contract No. NSC 100-2221-E-006-152-MY3.
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Lin, TH., Lin, CY. & Hwang, T. Man-in-the-Middle Attack on “Quantum Dialogue with Authentication Based on Bell States”. Int J Theor Phys 52, 3199–3203 (2013). https://doi.org/10.1007/s10773-013-1614-3
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DOI: https://doi.org/10.1007/s10773-013-1614-3