Abstract

The problem of information protection against unauthorized access is considered and the results of a comparative analysis of methods for extracting information from an optical fiber are presented. A method for detecting the formation of channels of information leakage, which is performed in various ways, is proposed for the successful struggle against unauthorized access. Among the analyzed methods for forming information leakage channels in a fiber-optic communication line, the simplest method involves bending the optical fiber to disturb the conditions for the total internal reflection. In this case, the monitoring system must track the introduced losses made in order to detect fiber bends.

中文翻译：

---

光接入网物理信道的信息安全原理

摘要

考虑了防止未经授权的访问的信息保护问题，并给出了从光纤中提取信息的方法的比较分析结果。为了成功地对抗未经授权的访问，提出了一种以各种方式执行的用于检测信息泄漏的通道的形成的方法。在分析的用于在光纤通信线路中形成信息泄漏通道的方法中，最简单的方法包括弯曲光纤以干扰全内反射的条件。在这种情况下，监视系统必须跟踪引入的损耗，以检测光纤弯曲。