AI 中文总结
本研究采用SDN技术解决大规模QKDN编排问题，提出多种路径选择算法及不经意多方协议，以提升量子安全网络基础设施的可扩展性、弹性与互操作性。
AI 中文摘要
本研究采用软件定义网络（Software Defined Networking, SDN）技术解决大规模量子密钥分发网络（Quantum Key Distribution Networks, QKDNs）的编排问题。研究基于ETSI和ITU的规范，梳理了通用最佳实践与架构。SDN控制器的核心任务是聚合网络中的技术关键性能指标（Key Performance Indicators, KPI），并据此选择最优路径。研究提出了多种基于Dijkstra算法或最大最小容量算法且内置负载均衡的路径选择算法，通过模拟测试验证了这些算法的性能并分析了其权衡关系。此外，还探讨了SDN控制QKDN的其他关键方面，如查询批处理、多路径选择和组密钥能力。针对多域场景，研究提出了一种不经意多方协议用于中继路径选择，使各提供商无需披露其QKDN的敏感信息。这些贡献旨在提升量子安全网络基础设施的可扩展性、弹性与互操作性。
英文摘要
This work addresses the orchestration of large-scale Quantum Key Distribution Networks (QKDNs) using Software Defined Networking (SDN). Building on ETSI and ITU specifications, common best practices and architectures are outlined. The main task of the SDN Controller is to aggregate technical key performance indicators (KPI) from the network and, based on these, select the optimal path. Multiple path selection algorithms, based on Dijkstra or a maximum-minimum capacity algorithm, with built-in load balancing are presented. The algorithms were tested in simulations and their performances, and tradeoffs, are discussed. Additional critical aspects related to SDN controlled QKDNs are discussed, such as query batching, multi-path selection and group key capabilities. An oblivious multi-party protocol is proposed for relay path selection in a multi-domain scenario, so providers don't have to disclose sensitive information about their QKDN. These contributions aim to enhance scalability, resilience and interoperability in quantum-secure network infrastructures.
Journal ref2026 International Conference on Quantum Communications, Networking, and Computing (QCNC)
DOI：10.1109/QCNC69040.2026.00115
