一种适用于量子密钥分配网络的组密钥协商方案

为了更好地在QKD(Quantum Key Distribution)中服务多用户组播通信,在量子密钥成对产生的特殊应用背景基础上,构建了组密钥协商模型,提出了一种基于分簇结构和二进制编码的组密钥协商方案.该方案消耗少量的端端量子密钥,经过安全协商,得到一致的组密钥.当新成员加入或者旧成员离开时,密钥更新快速易行.分析发现,该方案具有较好的安全性.

A Group Key Agreement Scheme for QKD Networks

Abstract： In QKD(quantum key distribution) networks, in order to serve the multicast communications among multiple users better, based on the special application background of quantum key generation in pairs, a group key agreement model was built and a group key agreement scheme based on clustering structure and binary code was presented. This scheme consumes a small amount of end-to-end quantum keys, and then obtains a consistent set of keys via security consultation. When new members join or old members leave, the key update is fast and easy. Analysis shows that the scheme has good security.
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