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Invertis Journal of Science & Technology

Securing Data in Fiber Optics

Babita Rawat, Mukesh Sone, Gaurav Agarwal

Published Jan 1, 2015• 1 citation
OpenAlex

Abstract

Fiber optic has previously displayed unbeaten advantages, and was the most secure communication medium, but now it is very easy to tap fiber optic networks. There are a number of known methods of extracting or injecting information into a fiber, while avoiding its detection. Therefore it has become necessary to secure data in optical fiber.

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Fiber optic has previously displayed unbeaten advantages, and was the most secure communication medium, but now it is very easy to tap fiber optic networks. There are a number of known methods of extracting or injecting information into a fiber, while avoiding its detection. Therefore it has become necessary to secure data in optical fiber.
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.
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.
Optical fiber-based communications are not secure enough as it was expected. It is possible to tap information from fiber-based communication. In this paper, we introduce some known methods of invasive and non-invasive information tapping from optical fibers. We investigated the possibility of tapping information from fiber-based communication by simply amplifying leaked fields out of the fiber. We implemented two methods of analytical solution for the Helmholtz equation and the numerical finite element method to simulate the leaked field. Finally by comparing the responses of both methods, we observed that some portion of field in different modes leaks off the fiber enough to be amplified. This enables tapping of information transmitted through the fiber.
The development of communication technology is currently progressing at an extremely rapid pace. One of the most widely applied technologies for data transmission is fiber optic communication, which uses light as the transmission medium. This technology enables data to be transmitted at very high speeds. However, in the process of data transmission, a security mechanism is required to protect information from unauthorized access. Attacks on fiber optic networks can lead to significant alterations in the data received compared to the data sent by the transmitter. This poses a serious risk, particularly when the transmitted data is confidential. Two methods that can be employed to secure fiber optic networks are Optical Steganography and Optical Encryption. The working principle of Optical Steganography involves hiding signals in public channels, while Optical Encryption functions by encrypting the transmitted signals. Both methods can be implemented using OptiSystem software. According to the results of this study, Optical Encryption demonstrates a higher level of reliability compared to Optical Steganography. Optical Encryption achieved a Q-Factor value of 14.65 and a BER of 6.55×10−49. In terms of Q-Factor, Optical Encryption is shown to be 16.3% more effective than Optical Steganography and 90.4% more efficient compared to designs without a security system.
Fiber optic systems are important telecommunication infrastructure for world-wide broadband networks. Wide bandwidth signal transmission with low delay is a key requirement in present day applications. Optical fibers provide enormous and unsurpassed transmission bandwidth with negligible latency, and are now the transmission medium of choice for long distance and high data rate transmission in telecommunication networks. This paper gives an overview of fiber optic communication systems including their key technologies, and also discusses their technological trend towards the next generation
One important advantage of fiberoptic communication is security. Compared with conventional electric cables, optical fiber cables are very hard to tap on information because no elctric or magnetic fields are generated from the cables. However, it is still possible to make an optical fiber to leak some of its power by peeling the jacket and bending the fiber or removing the cladding. Methods to pro-tect fiberoptic communication from tapping has been proposedl). In this paper we propose a new, simple but effective method bases on intermodal interference to protect multimode fiberoptic communication. The optical fiber detects any mechanical distortion of itself, which unavoidably occurs in an attempt to tap information. Although the lightwave carries both communication and security informations, we demonstrate that there is no degradation in communication quality.