实用化量子通信技术  

Practical Technology of Quantum Communication

作　　者：周飞 王向斌[1,2] 

机构地区：[1]济南量子技术研究院,济南250101 [2]低微量子物理国家重点实验室(清华大学物理系),北京100084

出　　处：《信息安全研究》2017年第1期80-85,共6页Journal of Information Security Research

基　　金：山东省重点研发计划基金项目(2015GGX101035)

摘　　要：量子通信是唯一得到严格证明、能从原理上确保无条件安全的通信技术.狭义地讲,量子通信技术指的是量子密钥分发技术,基于理想BB84协议的量子密钥分发技术被证明是绝对安全的,而现实系统无法完全满足理想化条件,其中非理想光源很容易受到光子数分束攻击,而基于BB84协议的诱骗态量子密钥分发方案能很好地解决非理想光源的安全通信问题.Quantum communication is the only strictly proved communication technology with unconditional security in principle. In a narrow sense, quantum communication refers to quantum key distribution, which is proved to be absolutely security based on ideal BB84 protocol. However, the idealized conditions can not be fully satisfied by real systems, wherein nonideal light sources readily get photon number splitting attack, and this security problem can be well solved by BB84 decoy state quantum key distribution.

关 键 词：量子密钥分发 光子数分束攻击 诱骗态 无条件安全 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]