Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution

Quantum Key Distribution (QKD) has remained the provable technique of ensuring secure communication amidst the impending security threat by the emerging quantum computers. Its security guarantee is based on superposition and entanglement, which are fundamental principle of quantum mechanics. As eff...

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Main Author:	Abiola, Taiwo Ambali
Format:	Thesis
Language:	English
Published:	2018
Subjects:	Data encryption (Computer science) Technology and engineering
Online Access:	http://psasir.upm.edu.my/id/eprint/76059/1/FK%202018%2072%20IR.pdf
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spelling	my-upm-ir.760592019-11-29T03:03:44Z Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution 2018-04 Abiola, Taiwo Ambali Quantum Key Distribution (QKD) has remained the provable technique of ensuring secure communication amidst the impending security threat by the emerging quantum computers. Its security guarantee is based on superposition and entanglement, which are fundamental principle of quantum mechanics. As efforts are currently underway toward actualization of QKD network, researchers have explored a number of techniques though which this could be achieved. Some of the techniques proposed are; subcarrier based QKD network, Orthogonal Frequency Division Multiplexed (OFDM) based QKD network and spectral amplitude coding optical code division multiplexed (SAC-OCDMA) based QKD network. Among the aforementioned technique, SAC-OCDMA based system has history of efficient channel management, asynchronous nature, as well as channel security. Nevertheless, the adopted Optical Orthogonal Code (OOC) which is a family of OCDMA code, has a couple of challenges which include complex architecture, as well as longer code length, both of which are capable of resulting to reduction in the secure key rate and number of simultaneous users. Thus, this work presents a new one-weight authentication code, which are assigned, uniquely to individual user in SAC-OCDMA based QKD network. The performance of the code was explored in QKD network using simulation, mathematics and laboratory experiment. Firstly, the proof of concept of plug and play (p&p) in QKD network was carried out and the concept of phase reorientation was clearly established using Optisystem simulation tool. This was followed by mathematical modelling of the secure key rate and QBER for different number of users. As observed in the obtained results, at an average mean photon number of 0.48, a 21-user network was achieved at a secure key rate of 24 bps over a distance of 5 km. The result of comparison of the proposed code with a Wavelength Division Multiplexed (WDM) system shows its security capability above the later. The code was further compared with an OOC based network and found to generate key at higher rate when the number of users is below 14. A two-user experimental result shows the real life realization of the proposed system as a transmission distance up to 40 km was achieved with secure key rate of 320 bps. Application of the proposed code in Differential Phase Shift Key – Quantum Key Distribution (DPS-QKD) environment was also established. The obtained results have shown that aside presenting a secure mechanism, the design flexibility and moderate code length exhibited by the proposed code are excellent factors that could be explored in enhancing the performance of QKD network. Data encryption (Computer science) Technology and engineering 2018-04 Thesis http://psasir.upm.edu.my/id/eprint/76059/ http://psasir.upm.edu.my/id/eprint/76059/1/FK%202018%2072%20IR.pdf text en public doctoral Universiti Putra Malaysia Data encryption (Computer science) Technology and engineering
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Data encryption (Computer science) Technology and engineering
spellingShingle	Data encryption (Computer science) Technology and engineering Abiola, Taiwo Ambali Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution
description	Quantum Key Distribution (QKD) has remained the provable technique of ensuring secure communication amidst the impending security threat by the emerging quantum computers. Its security guarantee is based on superposition and entanglement, which are fundamental principle of quantum mechanics. As efforts are currently underway toward actualization of QKD network, researchers have explored a number of techniques though which this could be achieved. Some of the techniques proposed are; subcarrier based QKD network, Orthogonal Frequency Division Multiplexed (OFDM) based QKD network and spectral amplitude coding optical code division multiplexed (SAC-OCDMA) based QKD network. Among the aforementioned technique, SAC-OCDMA based system has history of efficient channel management, asynchronous nature, as well as channel security. Nevertheless, the adopted Optical Orthogonal Code (OOC) which is a family of OCDMA code, has a couple of challenges which include complex architecture, as well as longer code length, both of which are capable of resulting to reduction in the secure key rate and number of simultaneous users. Thus, this work presents a new one-weight authentication code, which are assigned, uniquely to individual user in SAC-OCDMA based QKD network. The performance of the code was explored in QKD network using simulation, mathematics and laboratory experiment. Firstly, the proof of concept of plug and play (p&p) in QKD network was carried out and the concept of phase reorientation was clearly established using Optisystem simulation tool. This was followed by mathematical modelling of the secure key rate and QBER for different number of users. As observed in the obtained results, at an average mean photon number of 0.48, a 21-user network was achieved at a secure key rate of 24 bps over a distance of 5 km. The result of comparison of the proposed code with a Wavelength Division Multiplexed (WDM) system shows its security capability above the later. The code was further compared with an OOC based network and found to generate key at higher rate when the number of users is below 14. A two-user experimental result shows the real life realization of the proposed system as a transmission distance up to 40 km was achieved with secure key rate of 320 bps. Application of the proposed code in Differential Phase Shift Key – Quantum Key Distribution (DPS-QKD) environment was also established. The obtained results have shown that aside presenting a secure mechanism, the design flexibility and moderate code length exhibited by the proposed code are excellent factors that could be explored in enhancing the performance of QKD network.
format	Thesis
qualification_level	Doctorate
author	Abiola, Taiwo Ambali
author_facet	Abiola, Taiwo Ambali
author_sort	Abiola, Taiwo Ambali
title	Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution
title_short	Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution
title_full	Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution
title_fullStr	Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution
title_full_unstemmed	Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution
title_sort	development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution
granting_institution	Universiti Putra Malaysia
publishDate	2018
url	http://psasir.upm.edu.my/id/eprint/76059/1/FK%202018%2072%20IR.pdf
_version_	1747813109315141632

Development of authentication code based on spectral amplitude coding optical code division multiplexing for multi-user pseudo quantum key distribution

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