通过光纤通道单面的设备独立的随机数生成
Jinfang Zhang1, Yi Li2,3, Mengyu Zhao1
1State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan, 030006, China.
Light, science & applications
|January 2, 2025
概括
研究人员在2公里长的光纤通道上使用量子转向生成安全的量子随机数字. 这种单面的设备独立方法确保了随机性安全性,而无需对远程设备进行描述.
科学领域:
- 量子信息科学 量子信息科学
- 量子密码学 量子密码学
- 量子通信是一种量子通信.
背景情况:
- 认证的随机性对于密码学和模拟等安全应用至关重要.
- 量子随机生成通常依赖于设备特征,这带来了安全挑战.
- 一面独立于设备 (SDI) 的方法通过放松设备假设来提供增强的安全性.
研究的目的:
- 在实用的光纤通道中演示基于转向的随机数生成.
- 为了实现单方面设备独立的量子随机数生成 (QRNG).
- 为了证明远程设备的完整特征而没有随机性.
主要方法:
- 通过2公里的光纤通道,在两个遥远的用户之间分配量子转向.
- 重建共变矩阵的共享高斯纠状态,以证明随机性.
- 从测量的振幅方程波动中提取量子随机数.
主要成果:
- 量子转向在2公里的光纤通道上成功分布.
- 产生量子随机数字的速度为7.06 Mbits/s.
- 在光纤通道中首次实践实现基于转向的QRNG的演示.
结论:
- 基于定向的QRNG提供了一种可行的方法,用于在不对称网络中生成安全的随机性.
- 这项工作为一方放松了设备要求,提高了实际实施.
- 在现实世界通信网络中为安全的量子随机数生成铺平了道路.
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