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Ocean Optics and Information Technology

Analysis of submarine optical cable eavesdropping defense means

Liang Zheng, Chang Shu, Xiuling Li, Yingjian Wang

Published Dec 12, 2018• 1 citation
Publisher

Abstract

To tackle the increasingly serious information security issue of submarine cables, this article summarizes various kinds optical fiber eavesdropping defense means, and analyzes their advantages and disadvantages one by one. Then it puts forward two feasible secrecy system design proposals, and offers some advices and suggestions for information security protection system construction of submarine optical cables in China.

DOI
10.1117/12.2505161

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To tackle the increasingly serious information security issue of submarine cables, this article summarizes various kinds optical fiber eavesdropping defense means, and analyzes their advantages and disadvantages one by one. Then it puts forward two feasible secrecy system design proposals, and offers some advices and suggestions for information security protection system construction of submarine optical cables in China.
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.
Fiber Optics Communication is also one of the major branch which is widely used in current communication world. Due to several advantages of fiber optics communication over different conventional wired communication method it is having higher priority. Though fiber optic transmits large amount of data quickly over long distance, it is vulnerable to various security attacks. The fiber optic cable can be easily tapped. Fundamental improvements can be achieved for the entire network by increasing the optical network’s performance in terms of channel capacity, data rate, and processing speed. Furthermore, the security of the optical network has an impact on the security of the entire communication system. Optical network security can be effectively protected by fiber-based methods, including all optical signal processing, optical key distribution, optical steganography, and optical chaos-based communication. Fiber-based devices do not radiate an electromagnetic signature and are immune to electromagnetic interference. To provide end to end secure fiber optic communication, a special encryption algorithm based on Advanced Encryption Standard (AES) is employed. The proposed encryption algorithm is simulated and the performance is analyzed. In this paper we are mostly dealing with the basics of fiber optics working principle, priority over other conventional communication system and role of fiber optics communication in computer networking and its vulnerabilities.
At present, the optical fiber transmission technology is developing more and more rapidly. In the meantime, the discussion on the security issues triggered by it has become more and more intense. Based on this, this article summarizes the mainstream methods for improving the security of optical fiber transmission technology at the present stage. This can provide the certain reference direction for future research and exploration. Currently certain accomplishments have been attained in the physical layer, management layer, the network layer, the encryption technology, and the access control. But at the same time, there are also some disadvantages in certain aspects. For example, the complexity of the encryption technology is too high, the cost of the management layer is too excessive, and the difficulty of constructing the network layer is too great. In the future, more in-depth research can be conducted in material improvement, intelligent management, optimization of encryption technology, construction of secure networks, and detection of intrusion signals. This will further enhance the security of optical fiber transmission technology.
Optical network has the characteristics of high speed, large capacity, long distance, and no electromagnetic interference. It is widely used in global information network. More than 90% of the world's information is transmitted through optical network, and has become an important strategic infrastructure of modern information society. Optical network physical layer security is one of the important indicators of optical network communication quality. It represents the ability of the optical network physical layer information to resist human interception and attacks. This paper summarizes the development of physical layer security technology of optical network, including physical layer security system of optical network, optical information protection and optical layer firewall, analyzes the development trend of the technology, and puts forward some suggestions on the development of physical layer security technology of optical network from the perspective of long-term development strategy and recent development focus.
Solving the problem of ensuring the information security of the fiber-optics systems requires an analysis of possible methods of unauthorized access. Improving the technology of installation and operation of the fiber-optics systems not only enhances the quality and distance of information transmission over an optical cable, but also potentially expands the range of channels for possible leakage of information transmitted through it. Improving the construct of the optical fibers, the use of such technologies as wavelength division multiplexing (WDM), necessitates a complex analysis of increasing the information capacity and security of fiber-optics systems from unauthorized access. The paper compares the security of the fiber-optics systems built on the standard single mode fiber (SSMF) and dispersion shifted fiber (DSF). It is shown that, despite of the possibility of a higher information capacity, fiber-optics systems built on DSF require more careful control to avoid unauthorized access than in the case of using standard SSMF.