摘要
Noise is a problem that communication channels cannot avoid. It is, thus, beneficial to analyze the security of MDI-QKD in noisy environment. An analysis model for collective-rotation noise is introduced, and the information theory methods are used to analyze the security of the protocol. The maximum amount of information that Eve can eavesdrop is 50%, and the eavesdropping can always be detected if the noise level ε ≤ 0.68. Therefore, MDI-QKD protocol is secure as quantum key distribution protocol. The maximum probability that the relay outputs successful results is 16% when existing eavesdropping. Moreover, the probability that the relay outputs successful results when existing eavesdropping is higher than the situation without eavesdropping. The paper validates that MDI-QKD protocol has better robustness.
源语言 | 英语 |
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页(从-至) | 83-94 |
页数 | 12 |
期刊 | International Journal of Theoretical Physics |
卷 | 57 |
期 | 1 |
DOI | |
出版状态 | 已出版 - 1 1月 2018 |
已对外发布 | 是 |