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International Forum on Management, Education and Information Technology Application (IFMEITA)

Optical Fiber Communication Network Eavesdropping and Defensive Measures

Haiying Si, Hao Liu, Hao Ma

Published Jan 1, 2018• 8 citations

Abstract

With the development of optical fiber communication network eavesdropping technology, its security is facing new challenges in recent years.Some of the optical fiber communication eavesdropping technology cannot be detected with its hidden features, so it is necessary to study optical fiber tapping technology and its defensive measures.This paper summarized the cases in which the international optical fiber communication network had been eavesdropped in recent years, and introduced the intrusion and non-intrusive optical fiber eavesdropping methods.Based on the analysis of the general misunderstanding of optical fiber communication network security, the effective measures to defense fiber eavesdropping are put forward.

DOI: 10.2991/ifmeita-17.2018.53

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Optical network transfers a huge aggregate traffic,and a good part of this traffic is sensitive and confidential,and thus attractive to malicious attackers in eavesdropping,source mimicking,or denial of service attack.Furthermore,any service interruption due to failures and severe degradations could cause network congestion and/or traffic loss.As a result,it is very important for optical network to deploy fast detection and traffic recovery.This paper principally analyzes optical-fiber wiretapping method and its detection,describes the new quantum wiretapping detection technology,and gives some remarks on the related new technologies.

Optical fiber communication is not as secure as generally perceived. There are a number of known methods of extracting or injecting information into a fiber link, while avoiding detection. Few incidents have been reported as a successfully tapped fiber is difficult to detect. In this paper we highlight a number of known fiber tapping methods. We report simulation of optical characteristics of a fiber being tapped by `bend' method and proof of concept with physical experiment. We also presented visualized scenarios in which a resourceful eavesdropper can compromise security of a fiber link with existing technologies. Some measures to prevent fiber tapping or to nullify the significance of information tapped from fiber were also discussed.

High-speed and large-capacity optical fiber communication plays an important role in power system communication.With the development of optical fiber communication network tapping technology,optical fiber communication security faces new challenges.This paper analyzes the vulnerability of optical fiber communication network,introduces the fiber quantum key distribution technology,and summarizes the features of three QKD networks.Finally,the paper proposes the prospect of fiber QKD in power system and future research directions.