Information leakage via side channels in freespace BB84 quantum cryptography

被引：86
|
作者：
Nauerth, Sebastian [1 ]
Fuerst, Martin [1 ]
Schmitt-Manderbach, Tobias [1 ,2 ]
Weier, Henning [1 ]
Weinfurter, Harald [1 ,2 ]
机构：
[1] Univ Munich, Dept Phys, D-80799 Munich, Germany
[2] Max Planck Inst Quantum Opt, D-85748 Garching, Germany
来源：
NEW JOURNAL OF PHYSICS | 2009年 / 11卷
关键词：
KEY DISTRIBUTION;
D O I：
10.1088/1367-2630/11/6/065001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
While the BB84 protocol is in principle secure, real implementations suffer from imperfections. Here, we analyse a free space BB84 transmitter, operating with polarization encoded attenuated pulses. We report on measurements of all degrees of freedom of the transmitted photons in order to estimate potential side channels of the state preparation at Alice.
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收藏
页数：8
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