量子密钥分发网络架构及其标准化

Quantum Key Distribution Network Architecture and Its Standardization

量子密钥分发(Quantum Key Distribution,QKD)网络可将点到点QKD技术扩展为端到端、多用户的安全密钥分发。为推动QKD网络技术研究、标准化与实际应用,梳理了其组网基本原理,并从标准化角度介绍了其网络分层模型和功能架构,讨论了分布式控制、集中式控制、分级控制、集中密钥中继等多种组网方案,进一步剖析了其未来研究趋势及标准化工作展望。最后指出QKD网络基本理论与应用虽已接近成熟,但多技术融合及面向未来量子网络演进仍需深入研究,以加快该技术的实际应用和产业化发展,充分发挥其为信息通信服务提供量子安全保障的优势。

Quantum Key Distribution(QKD)network can extend the point-to-point QKD technology to end-to-end multi-user secure key distribution.In order to promote the research,standardization and practical application of QKD network,this paper introduce its basic networking principles,layered network model and functional architecture from the perspective of standardization,and discussed various network configurations including distributed control,centralized control,hierarchical control and centralized key relay.It further analyzed its future research trends and standardization outlook.Finally,it is pointed out that the basic theory and application of QKD network has matured,but multi-disciplinary technology integration and the evolution to the future quantum network still need to be studied in depth to speed up the actual application and industrialization and give full play to its advantage of providing quantum security guarantee for information and communication services.