| Quantum Overloading Cryptography Using Single-Photon Nonlocality |
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| 作者姓名： | 谭勇刚 蔡庆宇 史庭云 |
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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]Graduate School 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, and the Foundation of 0ne Hundred Talent Project of Chinese Academy of Sciences. |
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| 摘 要： |
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| 关 键 词： | 量子载体 密码学 量子光学 光学 |
| 收稿时间： | 2007-3-12 |
| 修稿时间： | 2007-03-12 |
Quantum Overloading Cryptography Using Single-Photon Nonlocality |
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| TAN Yong-Gang,CAI Qing-Yu,SHI Ting-Yun.Quantum Overloading Cryptography Using Single-Photon Nonlocality[J].Chinese Physics Letters,2007,24(8):2177-2180. |
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| Authors: | TAN Yong-Gang CAI Qing-Yu SHI Ting-Yun |
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| Institution: | 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. Graduate School of the Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | Using the single-photon nonlocality, we propose a quantum novel overloading cryptography scheme, in which a single photon carries two bits information in one-way quantum channel. Two commutative modes of the single photon, the polarization mode and the spatial mode, are used to encode secret information. Strict time windows are set to detect the impersonation attack. The spatial mode which denotes the existence of photons is noncommutative with the phase of the photon, so that our scheme is secure against photon-number-splitting attack. Our protocol may be secure against individual attack. |
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| Keywords: | 03 67 Dd 03 65 Ud |
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