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Comment on: Supervisory Asymmetric Deterministic Secure Quantum Communication

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Abstract

In 2010, Xiu et al. (Optics Communications 284:2065–2069, 2011) proposed several applications based on a new secure four-site distribution scheme using χ-type entangled states. This paper points out that one of these applications, namely, supervisory asymmetric deterministic secure quantum communication, is subject to an information leakage problem, in which the receiver can extract two bits of a three-bit secret message without the supervisor’s permission. An enhanced protocol is proposed to resolve this problem.

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Acknowledgements

The authors would like to thank the anonymous reviewers for their valuable comments, which greatly enhanced the clarity of this paper. This research is partially supported by the National Science Council of Republic of China and the Research Center of Quantum Communication and Security, National Cheng Kung University, Taiwan, R.O.C., under the Contract No. NSC 100-2221-E-006-152-MY3 and D100-36002, respectively.

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Authors and Affiliations

  1. Department of Computer Science and Information Engineering, National Cheng Kung University, No. 1, University Rd., Tainan City, 701, Taiwan, R.O.C.

    Shih-Hung Kao & Tzonelih Hwang

  2. Smart Network System Institute at Institute for Information Industry, No. 133, Sec. 4, Minsheng E. Rd., Songshan Dist., Taipei City 105, Taiwan, R.O.C.

    Chia-Wei Tsai

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  1. Shih-Hung Kao
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  2. Chia-Wei Tsai
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  3. Tzonelih Hwang
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Correspondence to Tzonelih Hwang.

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Kao, SH., Tsai, CW. & Hwang, T. Comment on: Supervisory Asymmetric Deterministic Secure Quantum Communication. Int J Theor Phys 51, 3868–3875 (2012). https://doi.org/10.1007/s10773-012-1273-9

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  • DOI: https://doi.org/10.1007/s10773-012-1273-9

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