基于诱骗态方法的量子密钥分发  

Quantum key distribution with the decoy-state method

作　　者：胡嘉仲[1] 王向斌[1] 

机构地区：[1]清华大学物理系,北京100084

出　　处：《中国科学：物理学、力学、天文学》2011年第4期459-465,共7页Scientia Sinica Physica,Mechanica & Astronomica

摘　　要：诱骗态量子密钥分发方法成功地解决了光子数分离攻击的安全性漏洞,并且使得人们实现了长距离的量子密钥分发.回顾了量子密钥分发的发展过程,从BB84协议至三强度诱骗态方法的实现.并且详细叙述了如何通过输入参数来获得绝对安全密钥的成码率.The decoy-state method of quantum key distribution（QKD） successfully solves the loophole of Photon-Number-Splitting attack and it also makes people to demonstrate QKD with a long distance. In this paper, we review the development of QKD, from BB84 protocol to the demonstration of three-intensity decoy-state method. We also explain how to get the final security key rate from the input parameters.

关 键 词：量子密钥分发 诱骗态方法 密码 安全 

分 类 号：TN918.1[电子电信—通信与信息系统]