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All optical metropolitan quantum key distribution network with post-quantum cryptography authentication
Optics Express ( IF 3.8 ) Pub Date : 2021-07-28 , DOI: 10.1364/oe.432944
Yong-Hua Yang , Pei-Yuan Li , Shi-Zhao Ma , Xiao-Cong Qian , Kai-Yi Zhang , Liu-Jun Wang , Wan-Li Zhang , Fei Zhou , Shi-Biao Tang , Jia-Yong Wang , Yu Yu , Qiang Zhang , Jian-Wei Pan

Quantum key distribution (QKD) provides information theoretically secure key exchange requiring authentication of the classic data processing channel via pre-sharing of symmetric private keys to kick-start the process. In previous studies, the lattice-based post-quantum digital signature algorithm Aigis-Sig, combined with public-key infrastructure (PKI), was used to achieve high-efficiency quantum security authentication of QKD, and we have demonstrated its advantages in simplifying the MAN network structure and new user entry. This experiment further integrates the PQC algorithm into the commercial QKD system, the Jinan field metropolitan QKD network comprised of 14 user nodes and 5 optical switching nodes, and verifies the feasibility, effectiveness and stability of the post-quantum cryptography (PQC) algorithm and advantages of replacing trusted relays with optical switching brought by PQC authentication large-scale metropolitan area QKD network. QKD with PQC authentication has potential in quantum-secure communications, specifically in metropolitan QKD networks.

中文翻译:

后量子密码认证全光城域量子密钥分发网络

量子密钥分发 (QKD) 提供了理论上安全的密钥交换信息,需要通过对称私钥的预共享来启动过程来验证经典数据处理通道。在以往的研究中,基于格的后量子数字签名算法 Aigis-Sig 结合公钥基础设施(PKI)被用于实现 QKD 的高效量子安全认证,我们已经证明了其在简化签名方面的优势。城域网网络结构和新用户入口。本实验进一步将PQC算法集成到商用QKD系统中,济南野外城域QKD网络由14个用户节点和5个光交换节点组成,并验证了可行性,后量子密码(PQC)算法的有效性和稳定性,以及PQC认证大规模城域QKD网络带来的光交换替代可信中继的优势。带有 PQC 身份验证的 QKD 在量子安全通信中具有潜力,特别是在城域 QKD 网络中。
更新日期:2021-08-02
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