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Multiple stochastic paths scheme on partially-trusted relay quantum key distribution network

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Abstract

Quantum key distribution (QKD) technology provides proven unconditional point-to-point security based on fundamental quantum physics. A QKD network also holds promise for secure multi-user communications over long distances at high-speed transmission rates. Although many schemes have been proposed so far, the trusted relay QKD network is still the most practical and flexible scenario. In reality, the insecurity of certain relay sections cannot be ignored, so to solve the fatal security problems of partially-trusted relay networks we suggest a multiple stochastic paths scheme. Its features are: (i) a safe probability model that may be more practical for real applications; (ii) a multi-path scheme with an upper bound for the overall safe probability; (iii) an adaptive stochastic routing algorithm to generate sufficient different paths and hidden routes. Simulation results for a typical partially-trusted relay QKD network show that this generalized scheme is effective.

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Authors and Affiliations

  1. Key Lab of Quantum Information, Chinese Academy of Sciences, University of Science and Technology of China, Hefei, 230026, China

    Hao Wen, ZhengFu Han, YiBo Zhao & GuangCan Guo

  2. Department of Electronic Engineering and Information Science, University of Science and Technology of China, Hefei, 230026, China

    PeiLin Hong

Authors
  1. Hao Wen
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  2. ZhengFu Han
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  3. YiBo Zhao
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  4. GuangCan Guo
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  5. PeiLin Hong
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Corresponding author

Correspondence to ZhengFu Han.

Additional information

Supported by the National Fundamental Research Program of China (Grant No. 2006CB921900), the National Natural Science Foundation of China (Grant Nos. 60537020 and 60621064), the Knowledge Innovation Project of the Chinese Academy of Sciences, and the Chinese Academy of Sciences International Partnership Project

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Wen, H., Han, Z., Zhao, Y. et al. Multiple stochastic paths scheme on partially-trusted relay quantum key distribution network. Sci. China Ser. F-Inf. Sci. 52, 18–22 (2009). https://doi.org/10.1007/s11432-009-0001-4

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  • DOI: https://doi.org/10.1007/s11432-009-0001-4

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