Chaotic Encryption Applied to Optical Ethernet in Industrial Control Systems

Fuente: arXiv
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Hauptverfasser: Pérez-Resa, Adrián, Garcia-Bosque, Miguel, Sánchez-Azqueta, Carlos, Celma, Santiago
Format: Preprint
Veröffentlicht: 2024
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author Pérez-Resa, Adrián
Garcia-Bosque, Miguel
Sánchez-Azqueta, Carlos
Celma, Santiago
author_facet Pérez-Resa, Adrián
Garcia-Bosque, Miguel
Sánchez-Azqueta, Carlos
Celma, Santiago
contents In the past decades, Ethernet has become an alternative technology for the field buses traditionally used in industrial control systems and distributed measurement systems. Among different transmission media in Ethernet standards, optical fiber provides the best bandwidth, excellent immunity to electromagnetic interference, and less signal loses than other wired media. Due to the absence of a standard that provides security at the physical layer of optical Ethernet links, the main motivation of this paper is to propose and implement the necessary modifications to introduce encryption in Ethernet 1000Base-X standard. This has consisted of symmetric streaming encryption of the 8b10b symbols flow at physical coding sublayer level, thanks to a keystream generator based on chaotic algorithm. The overall system has been implemented and tested in an field programmable gate array and Ethernet traffic has been encrypted and transmitted over an optical link. The experimental results show that it is possible to cipher traffic at this level and hide the complete Ethernet traffic pattern from passive eavesdroppers. In addition, no space overhead is introduced in data frames during encryption, achieving the maximum throughput.
format Preprint
id arxiv_https___arxiv_org_abs_2401_15039
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Chaotic Encryption Applied to Optical Ethernet in Industrial Control Systems
Pérez-Resa, Adrián
Garcia-Bosque, Miguel
Sánchez-Azqueta, Carlos
Celma, Santiago
Cryptography and Security
Signal Processing
In the past decades, Ethernet has become an alternative technology for the field buses traditionally used in industrial control systems and distributed measurement systems. Among different transmission media in Ethernet standards, optical fiber provides the best bandwidth, excellent immunity to electromagnetic interference, and less signal loses than other wired media. Due to the absence of a standard that provides security at the physical layer of optical Ethernet links, the main motivation of this paper is to propose and implement the necessary modifications to introduce encryption in Ethernet 1000Base-X standard. This has consisted of symmetric streaming encryption of the 8b10b symbols flow at physical coding sublayer level, thanks to a keystream generator based on chaotic algorithm. The overall system has been implemented and tested in an field programmable gate array and Ethernet traffic has been encrypted and transmitted over an optical link. The experimental results show that it is possible to cipher traffic at this level and hide the complete Ethernet traffic pattern from passive eavesdroppers. In addition, no space overhead is introduced in data frames during encryption, achieving the maximum throughput.
title Chaotic Encryption Applied to Optical Ethernet in Industrial Control Systems
topic Cryptography and Security
Signal Processing
url https://arxiv.org/abs/2401.15039