Analysis and improvement of S-Box in Rijndael- AES algorithm

The internet has become a part of everyday life and is used as a communication tool, a way to bank, invest, shop and an educational and entertainment medium. As the importance and popularity of the internet has grown over the years, so has the number of threats from hackers on the internet which has...

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Main Author:	Gaithuru, Juliet Nyokabi
Format:	Thesis
Language:	English
Published:	2013
Subjects:	QA75 Electronic computers Computer science
Online Access:	http://eprints.utm.my/id/eprint/78145/1/GaithuruJulietNyokabiMFC20131.pdf
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id	my-utm-ep.78145
record_format	uketd_dc
spelling	my-utm-ep.781452018-07-25T08:17:47Z Analysis and improvement of S-Box in Rijndael- AES algorithm 2013-09 Gaithuru, Juliet Nyokabi QA75 Electronic computers. Computer science The internet has become a part of everyday life and is used as a communication tool, a way to bank, invest, shop and an educational and entertainment medium. As the importance and popularity of the internet has grown over the years, so has the number of threats from hackers on the internet which has necessitated the need for the encryption of confidential data. Various methods of data encryption have been used over time, with developments being made to improve these techniques as hackers develop improved ways of attacking the algorithms used for encryption. This process of continued improvement of cryptographic security brought about the development and acceptance of the Advanced Encryption Standard (AES), which is a National Institute of Standards and Technology specification for the encryption of electronic data including financial, telecommunications, and government data. The Rijndael algorithm was selected as the encryption algorithm for AES in October 2001 and is currently used by government agencies and the private sector to secure sensitive unclassified information. Research has shown that Rijndael is susceptible to differential/ linear cryptanalysis for 7 and 8-round Rijndael, saturation attacks, algebraic attacks and side channel attacks on reduced versions of Rijndael, which could pave the way for a full-blown attack on the Rijndael algorithm in the future. This research investigates the weaknesses present in the Rijndael algorithm using various custom-made testing tools and then using the results of this investigation to improve the security of the algorithm. The improvement is provided in the form a technique of generating highly non-linear output using a non-linear random number generator which uses the recursive inverse congruential method. The research will comprise of three phases; literature review, analysis of the Rijndael algorithm using custom-made tools and development of an improvement whose performance will be evaluated in comparison to the current algorithm. 2013-09 Thesis http://eprints.utm.my/id/eprint/78145/ http://eprints.utm.my/id/eprint/78145/1/GaithuruJulietNyokabiMFC20131.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:81510 masters Universiti Teknologi Malaysia, Faculty of Computing Faculty of Computing
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	QA75 Electronic computers Computer science
spellingShingle	QA75 Electronic computers Computer science Gaithuru, Juliet Nyokabi Analysis and improvement of S-Box in Rijndael- AES algorithm
description	The internet has become a part of everyday life and is used as a communication tool, a way to bank, invest, shop and an educational and entertainment medium. As the importance and popularity of the internet has grown over the years, so has the number of threats from hackers on the internet which has necessitated the need for the encryption of confidential data. Various methods of data encryption have been used over time, with developments being made to improve these techniques as hackers develop improved ways of attacking the algorithms used for encryption. This process of continued improvement of cryptographic security brought about the development and acceptance of the Advanced Encryption Standard (AES), which is a National Institute of Standards and Technology specification for the encryption of electronic data including financial, telecommunications, and government data. The Rijndael algorithm was selected as the encryption algorithm for AES in October 2001 and is currently used by government agencies and the private sector to secure sensitive unclassified information. Research has shown that Rijndael is susceptible to differential/ linear cryptanalysis for 7 and 8-round Rijndael, saturation attacks, algebraic attacks and side channel attacks on reduced versions of Rijndael, which could pave the way for a full-blown attack on the Rijndael algorithm in the future. This research investigates the weaknesses present in the Rijndael algorithm using various custom-made testing tools and then using the results of this investigation to improve the security of the algorithm. The improvement is provided in the form a technique of generating highly non-linear output using a non-linear random number generator which uses the recursive inverse congruential method. The research will comprise of three phases; literature review, analysis of the Rijndael algorithm using custom-made tools and development of an improvement whose performance will be evaluated in comparison to the current algorithm.
format	Thesis
qualification_level	Master's degree
author	Gaithuru, Juliet Nyokabi
author_facet	Gaithuru, Juliet Nyokabi
author_sort	Gaithuru, Juliet Nyokabi
title	Analysis and improvement of S-Box in Rijndael- AES algorithm
title_short	Analysis and improvement of S-Box in Rijndael- AES algorithm
title_full	Analysis and improvement of S-Box in Rijndael- AES algorithm
title_fullStr	Analysis and improvement of S-Box in Rijndael- AES algorithm
title_full_unstemmed	Analysis and improvement of S-Box in Rijndael- AES algorithm
title_sort	analysis and improvement of s-box in rijndael- aes algorithm
granting_institution	Universiti Teknologi Malaysia, Faculty of Computing
granting_department	Faculty of Computing
publishDate	2013
url	http://eprints.utm.my/id/eprint/78145/1/GaithuruJulietNyokabiMFC20131.pdf
_version_	1747817918039588864

Analysis and improvement of S-Box in Rijndael- AES algorithm

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