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一个基于光纤的密钥,用于用户和光纤线路的远程身份验证

Alexander Smirnov¹, Mikhail Yarovikov¹, Ekaterina Zhdanova¹

¹Terra Quantum AG, Kornhausstrasse 25, CH-9000 St. Gallen, Switzerland.

Sensors (Basel, Switzerland)

|July 29, 2023

概括

光纤光学纤维是一种光纤.

科学领域:

光学物理学的光学物理.
电信工程电信工程电信工程
信息安全信息安全.

背景情况:

标准的电信纤维具有独特的内部结构不均性.
这些不均性可以在安全应用中发挥作用.
现有的身份验证方法可能存在漏洞.

研究的目的:

探索光纤不均性用于远程身份验证的使用.
为了证明观察无法克隆的反散信号模式的可行性.
调查这些模式的物理基础和特征.

主要方法:

使用光学时域反射计 (OTDR) 来分析反散信号.
调查检测到的模式的空间周期和物理性质.
通过实验验证这些模式的属性作为物理不可克隆函数 (PUF).

主要成果:

在几十公里外观察到无法克隆的反向散射信号模式.
确定了标准电信纤维的折射率波动作为来源.
证实了这些基于纤维的图案的独特性和可重复性.
证明了它们作为物理不可克隆函数 (PUF) 的适用性.

结论:

光纤不均性为远程认证提供了一种新的方法.
OTDR可以有效地检测和分析这些独特的纤维特性.
拟议的方法为光纤线路提供了一个物理无法克隆的安全解决方案.

关键词:

雷利的背部散射是雷利的背部散射.认证的真实性认证的真实性标识标识标识标识标识光学通信是指光学通信的应用.有光纤的光学纤维.光学时间域反射计反射计.物理上无法克隆的功能.

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