Journal
INSTRUMENTS AND EXPERIMENTAL TECHNIQUES
Volume 63, Issue 4, Pages 591-594Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0020441220040272
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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.
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