A modified approach to improve the performance of AES using feistel structure

In encryption algorithm design, apart from the security performance, processing performance and the cost of the implementation are very important trade-off parameters. A most popular and widely adopted symmetric encryption algorithm is the Advanced Encryption Standard (AES). It suffers from the dema...

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Main Author:	Al-Ansi, Afeef Yahya Ahmed
Format:	Thesis
Language:	English
Published:	2018
Subjects:	Data encryption (Computer science) Data Encryption Standard
Online Access:	http://psasir.upm.edu.my/id/eprint/68819/1/FSKTM%202018%2027%20IR.pdf
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id	my-upm-ir.68819
record_format	uketd_dc
spelling	my-upm-ir.688192019-06-18T02:38:37Z A modified approach to improve the performance of AES using feistel structure 2018-01 Al-Ansi, Afeef Yahya Ahmed In encryption algorithm design, apart from the security performance, processing performance and the cost of the implementation are very important trade-off parameters. A most popular and widely adopted symmetric encryption algorithm is the Advanced Encryption Standard (AES). It suffers from the demand for the performance efficiency. To improve its computational cost, we propose a modification of the AES technique. Having found that out of the four major operations in the AES; MixColumn is the one that takes huge amount of computing time and for which replacement with look-up table adds additional space constrain, we propose replacing the MixColumns with a Feistel Structure that exits and is the main engine of the Data Encryption Standard (DES). Empirical performance analysis on our proposed modified AES shows a significant reduction in the processing time by up to 67% on the average. The method support parallel implementation with little overhead. Data encryption (Computer science) Data Encryption Standard 2018-01 Thesis http://psasir.upm.edu.my/id/eprint/68819/ http://psasir.upm.edu.my/id/eprint/68819/1/FSKTM%202018%2027%20IR.pdf text en public masters Universiti Putra Malaysia Data encryption (Computer science) Data Encryption Standard
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Data encryption (Computer science) Data Encryption Standard
spellingShingle	Data encryption (Computer science) Data Encryption Standard Al-Ansi, Afeef Yahya Ahmed A modified approach to improve the performance of AES using feistel structure
description	In encryption algorithm design, apart from the security performance, processing performance and the cost of the implementation are very important trade-off parameters. A most popular and widely adopted symmetric encryption algorithm is the Advanced Encryption Standard (AES). It suffers from the demand for the performance efficiency. To improve its computational cost, we propose a modification of the AES technique. Having found that out of the four major operations in the AES; MixColumn is the one that takes huge amount of computing time and for which replacement with look-up table adds additional space constrain, we propose replacing the MixColumns with a Feistel Structure that exits and is the main engine of the Data Encryption Standard (DES). Empirical performance analysis on our proposed modified AES shows a significant reduction in the processing time by up to 67% on the average. The method support parallel implementation with little overhead.
format	Thesis
qualification_level	Master's degree
author	Al-Ansi, Afeef Yahya Ahmed
author_facet	Al-Ansi, Afeef Yahya Ahmed
author_sort	Al-Ansi, Afeef Yahya Ahmed
title	A modified approach to improve the performance of AES using feistel structure
title_short	A modified approach to improve the performance of AES using feistel structure
title_full	A modified approach to improve the performance of AES using feistel structure
title_fullStr	A modified approach to improve the performance of AES using feistel structure
title_full_unstemmed	A modified approach to improve the performance of AES using feistel structure
title_sort	modified approach to improve the performance of aes using feistel structure
granting_institution	Universiti Putra Malaysia
publishDate	2018
url	http://psasir.upm.edu.my/id/eprint/68819/1/FSKTM%202018%2027%20IR.pdf
_version_	1747812638095572992

A modified approach to improve the performance of AES using feistel structure

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