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International Conference on Electrical, Telecommunication and Computer Engineering (ELTICOM)

Comparative Analysis of Fiber Optical Network Security Using Optical Steganography and Encryption Method

Naemah Mubarakah, M. Agus Susanto Sinaga, Rika Wahyuni, Rvandika Afdila, Soeharwinto Soeharwinto, Kasmir Tanjung

Published Nov 21, 2024• 0 citations
Publisher

Abstract

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.

DOI
10.1109/elticom64085.2024.10864772

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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 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 encryption, key generation, and optical stealth transmission techniques for protecting the privacy of communication in optical networks are proposed and summarized. The signal processing methods based on fiber components provide ways to encrypt data and generate encryption keys at the speed of data transmission in optical fibers. Private and confidential communication is achieved without compromising the capacity and bandwidth of the optical network. Optical stealth transmission can hide the signal in plain sight. Because an eavesdropper can neither read the data nor detect the existence of the transmitted signal, optical stealth transmission provides a higher level of privacy. A hybrid system which includes both the public channels and stealth channels can effectively provide anonymous communication and defend against traffic analysis.
An optical fiber is an important communication channel as it proposes a high bandwidth and less attenuation, and can be easy challenging assistances such as huge-quality data transmission and others in computer networks. The basic optical transmission system consists of three basic elements which are fiber media (transmission channel), light sources as the input (covert electric signal into optic signal) and light detector as the output (convert optic signal into electric signal). FBG is the key component in optical communication system as, dispersion compensators, filters and flatteners gain. There is need to introduce mechanism that should be capable to provide data security in less time. More over there is need to introduce energy efficient mechanism that should be capable to reduce the size of packet during data transmission. There are several problems that are faced due to attenuation in fiber optics. There is need of repeater in order to regenerate the signals. Process working principle of proposed technique that is being used enhancement of security in steganography has been discussed with process flow and result. It states how brute force and timing attack are not applicable on proposed technique.
The growing awareness of the vulnerability of information transmitted on communication systems within the government, military and commercial sectors, has stimulated a number of areas of research within the optical community to design optical hardware encryption systems providing inherent immunity to espionage techniques. This paper describes a hardware optical encryption technique that utilises off the shelf telecommunication equipment and negates the necessity for an independent key distribution system with respect to the data transmission system, as is common with alternative encryption system implementations. This method also lends itself easily to fiber optic or free space communication and is applicable within any optical waveband. The encryption-decryption of the optical signal is achieved through low coherence optical interferometry. This requires the instantaneous processing and analysis of the signal, optically, to retrieve the relevant optical phase information hidden in the transmitted optical noise. This technology allows an authorised user to transmit encrypted information at a high data rate securely, while maintaining opaqueness to an unauthorised observer that data transmission is occurring. As the instantaneous optical field properties of the signals present in the system are essential to the optical encryption - decryption process, the system is inherently protected against electronic recording and advances in computational decryption algorithms. For organisations wishing to protect sensitive data and levels of communication activity these are highly desirable features.
Using optical processing techniques, we experimentally enhance the physical layer security of optical communication systems. We exploit optical encryption using fiber nonlinearity to achieve real time data encryption. By implementing interleaved waveband switching modulation and variable two-code keying to the system, the security of the data is further enhanced. Based on spread spectrum, we also demonstrate optical steganography such that the stealth signal is transmitted underneath system noise. Optical steganography in WDM and optical CDMA systems is experimentally demonstrated. We also propose and study optical CDMA-based backup channels that improve service availability without wasting the bandwidth in the backup channel. The multi-layered security provided improves the confidentiality and availability of the network.
Abstract Optical encryption techniques in over the last 10 years have become more important in the area of optical information processing. Several applications, including online payments, medical or biometric image storage or transmission, private military applications, police identification techniques, online banking platforms, governmental services, identity (ID) cards, etc., are only a few examples. Require special and reliable security in the transmission and storage of images. Since digital picture information may be readily accessed by hackers via transmission over the Internet or other communication channels, the issue of photos with unlawful usage is becoming more and more severe. A more effective and secure means of communicating images may be offered via optical encryption. The encryption mechanism and keys are needed at the receiver side in order to decrypt the original optical data. Picture security becomes a highly important subject in communication science as a result of network growth and rising need for image transmission. There are several security issues with picture data, including forgery detection and illegal access. The most straightforward method of picture protection is to encrypt it as text. The traditional text encryption algorithms are inappropriate for picture encryption because of the high correlation present in image data. Over the last two decades, a number of optical approaches have been proposed for photo encryption, with the specific advantage of processing two-dimensional (2D) image data in parallel conduction mode. Therefore, we are doing an extensive investigation on optical image encryption in this work.