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Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA

Recently, due to the advent of resource-constrained trends, such as smartphones and smart devices, the computing environment is changing. Because our daily life is deeply intertwined with ubiquitous networks, the importance of security is growing. A lightweight encryption algorithm is essential for...

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Detalles Bibliográficos
Autores principales: Lee, Donggeon, Kim, Dong-Chan, Kwon, Daesung, Kim, Howon
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926597/
https://www.ncbi.nlm.nih.gov/pubmed/24406859
http://dx.doi.org/10.3390/s140100975
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author Lee, Donggeon
Kim, Dong-Chan
Kwon, Daesung
Kim, Howon
author_facet Lee, Donggeon
Kim, Dong-Chan
Kwon, Daesung
Kim, Howon
author_sort Lee, Donggeon
collection PubMed
description Recently, due to the advent of resource-constrained trends, such as smartphones and smart devices, the computing environment is changing. Because our daily life is deeply intertwined with ubiquitous networks, the importance of security is growing. A lightweight encryption algorithm is essential for secure communication between these kinds of resource-constrained devices, and many researchers have been investigating this field. Recently, a lightweight block cipher called LEA was proposed. LEA was originally targeted for efficient implementation on microprocessors, as it is fast when implemented in software and furthermore, it has a small memory footprint. To reflect on recent technology, all required calculations utilize 32-bit wide operations. In addition, the algorithm is comprised of not complex S-Box-like structures but simple Addition, Rotation, and XOR operations. To the best of our knowledge, this paper is the first report on a comprehensive hardware implementation of LEA. We present various hardware structures and their implementation results according to key sizes. Even though LEA was originally targeted at software efficiency, it also shows high efficiency when implemented as hardware.
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spelling pubmed-39265972014-02-18 Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA Lee, Donggeon Kim, Dong-Chan Kwon, Daesung Kim, Howon Sensors (Basel) Article Recently, due to the advent of resource-constrained trends, such as smartphones and smart devices, the computing environment is changing. Because our daily life is deeply intertwined with ubiquitous networks, the importance of security is growing. A lightweight encryption algorithm is essential for secure communication between these kinds of resource-constrained devices, and many researchers have been investigating this field. Recently, a lightweight block cipher called LEA was proposed. LEA was originally targeted for efficient implementation on microprocessors, as it is fast when implemented in software and furthermore, it has a small memory footprint. To reflect on recent technology, all required calculations utilize 32-bit wide operations. In addition, the algorithm is comprised of not complex S-Box-like structures but simple Addition, Rotation, and XOR operations. To the best of our knowledge, this paper is the first report on a comprehensive hardware implementation of LEA. We present various hardware structures and their implementation results according to key sizes. Even though LEA was originally targeted at software efficiency, it also shows high efficiency when implemented as hardware. Molecular Diversity Preservation International (MDPI) 2014-01-08 /pmc/articles/PMC3926597/ /pubmed/24406859 http://dx.doi.org/10.3390/s140100975 Text en © 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Lee, Donggeon
Kim, Dong-Chan
Kwon, Daesung
Kim, Howon
Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA
title Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA
title_full Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA
title_fullStr Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA
title_full_unstemmed Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA
title_short Efficient Hardware Implementation of the Lightweight Block Encryption Algorithm LEA
title_sort efficient hardware implementation of the lightweight block encryption algorithm lea
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3926597/
https://www.ncbi.nlm.nih.gov/pubmed/24406859
http://dx.doi.org/10.3390/s140100975
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