混合量子混沌密钥扩展使用洛伦兹系统提高QKD速率
Pobporn Danvirutai1, Sartra Wongthanavasu1, Trong-Minh Hoang2
1Department of Computer Science, College of Computing, Khon Kaen University, Khon Kaen, 40002, Thailand.
Scientific reports
|February 5, 2026
概括
这项研究通过整合决定性混乱来增强量子密钥分布 (QKD) 的安全性,显著提高了安全密钥生成率. 基于软件的方法放大了密钥扩展,为各种应用程序实现更快,更安全的通信.
科学领域:
- 量子信息科学 量子信息科学
- 密码学 密码学 密码学 密码学
- 应用物理 应用物理
背景情况:
- 量子密钥分布 (QKD) 提供了信息理论上的安全性,但由于密钥生成率低而受到影响.
- 高带宽和低延迟应用程序特别受到QKD的吞吐量限制.
- 现有的QKD硬件缺乏快速安全密钥扩展的有效方法.
研究的目的:
- 引入一种混合密码技术,以提高QKD密钥扩展率.
- 为了利用决定性混乱来实现基于软件的安全密钥生成改进.
- 为了使要求高的应用程序能够实现实用,高吞吐量的QKD.
主要方法:
- 传统的QKD与由洛伦兹吸引器建模的确定性混乱的整合.
- 从一个短的QKD种子生成长位流,使用混乱扩张.
- 分析混乱的轨迹分歧,以确保对敌人的安全.
主要成果:
- 与基线QKD相比,有效关键扩张率扩大了两个以上的数量级.
- 来自20位种子的快速比特流生成 (毫秒的长流) 的演示.
- 通过对手相互信息的指数式衰变来证实理论上的安全性.
结论:
- 拟议的混合方法可以显著提高QKD吞吐量,而无需对硬件进行修改.
- 基于软件的混乱扩张为高速安全通信提供了实用的解决方案.
- 这种技术适用于安全视频,物联网和边缘计算等应用.
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