2018256-1
专题:量子保密通信技术与应用
量子保密通信网络架构及移动化应用方案
王健全,马彰超,李新中,孙雷,胡昌玮
(国科量子通信网络有限公司,北京 100193)
摘 要:作为新一次量子革命中率先实用化的代表性技术,量子密钥分发(quantum key distribution,QKD)
为信息安全领域带来了有望实现长期安全性保障的可行方案,近年来从协议设计、技术研发、网络部署到实
际应用都取得了长足的进步。首先探讨了将点对点 QKD 技术扩展到多用户量子保密通信网络的架构设计;进
一步,结合经典密码学方案,提出将 QKD 生成的量子密钥在移动终端侧应用的增强解决方案,使得 QKD 技
术可应用于更广泛的移动化场景。
关键词:量子密钥分发;网络安全;密码学;移动应用
中图分类号:TN918
文献标识码:A
doi: 10.11959/j.issn.1000−0801.2018256
Quantum secure communication network architecture
and mobile application solution
WANG Jianquan, MA Zhangchao, LI Xinzhong, SUN Lei, HU Changwei
CAS Quantum Communication Network Co., Ltd., Beijing 100193, China
Abstract: As the first practical representative technology in the new quantum revolution, quantum key distribution
(QKD) brings a promising solution to achieve long-term security guarantee, which has made series of progress from
research to practical deployment and applications in recent years. The architecture design of quantum secure commu-
nication network was firstly discussed, which extended point-to-point QKD link to multi-user QKD network. Fur-
thermore, combining with the classical cryptography, an enhanced solution was proposed to apply the quantum key gen-
erated by QKD to the mobile terminals, which offered the possibility to apply QKD in general mobile applications.
Key words: quantum key distribution, network security, cryptography, mobile application
1 引言
量子密码学的研究源于 Bennett 和 Brassard 的
开创性工作
[1]
。不同于经典密码学,量子密码学
的安全性保障并不来自于数学算法的计算复杂
度,而是建立在量子物理学的基本定律之上,能
够提供独特的长期安全性保障。
所谓的长期安全性理念,来自信息论的创立
者香农(Shannon C)
[2]
1949 年提出的信息理论安
全模型,其证明在一次一密(one-time pad,OTP)
收稿日期:2018−08−10;修回日期:2018−09−06
通信作者:马彰超,mazc@casquantumnet.com