| Quantum Key Distribution against Trojan Horse Attacks |
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| 引用本文： | 蔡庆宇 吕桦. Quantum Key Distribution against Trojan Horse Attacks[J]. 中国物理快报, 2007, 24(5): 1154-1157 |
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| 作者姓名： | 蔡庆宇 吕桦 |
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| 作者单位： | [1]State Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics~ Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 [2]Department of Physics, Hubei University of Technology, Wuhan 430068 [3]Graduate University of the Chinese Academy of Sciences, Beijing 100049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10504039. |
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| 摘 要： |
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| 关 键 词： | 窃听 量子密码 键分布 特洛伊木马攻击 |
| 收稿时间： | 2006-12-25 |
| 修稿时间： | 2006-12-25 |
Quantum Key Distribution against Trojan Horse Attacks |
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| CAI Qing-Yu,LV Hua. Quantum Key Distribution against Trojan Horse Attacks[J]. Chinese Physics Letters, 2007, 24(5): 1154-1157 |
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| Authors: | CAI Qing-Yu LV Hua |
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| Affiliation: | 1State Key Laboratory of Magnetic Resonances and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 ;Department of Physics, Hubei University of Technology, Wuhan 430068 ; 3Graduate University of the Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | Realistic experimental apparatus of quantum cryptography are imperfect, which may be utilized by a potential eavesdropper to eavesdrop on the communication. We show that quantum communication may be improved with quantum teleportation and entanglement swapping, which is robustly secure against the most general Trojan horse attacks. Our scheme is not an improvement of the communication apparatus, but the improvement of quantum communication protocol itself. We show that our modified schemes may be implemented with current technology. |
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| Keywords: | 03.67.Hk 03.67.Dd 03.67.-a |
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