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Design of Improved Stream Cipher Algorithms for GSM Communication

Thesis (M.Sc.)--Faculty of Science and Technology, Universiti Sains Islam Malaysia, 2012

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Main Author: Nur Hafiza Zakaria
Format: Thesis
Language:English
Published: Universiti Sains Islam Malaysia 2015
Subjects:
Global system for mobile communications
Stream ciphers
Online Access:http://ddms.usim.edu.my/handle/123456789/8402
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spelling my.usim-84022017-09-11T02:04:33Z Design of Improved Stream Cipher Algorithms for GSM Communication Nur Hafiza Zakaria Global system for mobile communications Stream ciphers Thesis (M.Sc.)--Faculty of Science and Technology, Universiti Sains Islam Malaysia, 2012 Global System for Mobile communication (GSM) is standard set developed by the European Telecommunications Standards Institute to describe technologies for second generation digital cellular networks. GSM was created with a moderate level of service security. Communications between the subscriber and the base station can be encrypted. GSM uses several cryptographic algorithms for information security. The A5/1 and A5/2 stream ciphers are used for ensuring over the air privacy. However, in this research it will focus only on A5/1 stream cipher algorithm. A5/1 was developed earlier than A5/2 and it is a stronger algorithm used within Europe and United States. However, serious weaknesses have been found in A5 algorithms. A5/1 is based around a combination of three linear feedback shift registers. There is a set of statistical tests to determine the security level that can be provided by various algorithms. The perfect system is the one that gives the best statistical results. Simulation on six proposed models was performed on PC using Java language. The generated key of the algorithms were analyzed to see whether the generated key is random or not. Verification of algorithms are analyzed using five statistical tests which are frequency test, runs test, serial test, longest runs of one test and linear complexity test. Data analysis of the simulation was done using NIST statistical test suite. Based on all the tests and analysis, the algorithms designed had fulfilled the characteristics for a good stream cipher algorithm. 2015-06-18T02:15:13Z 2015-06-18T02:15:13Z 2012 Thesis http://ddms.usim.edu.my/handle/123456789/8402 en Universiti Sains Islam Malaysia
institution Universiti Sains Islam Malaysia
building USIM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universit Sains Islam i Malaysia
content_source USIM Institutional Repository
url_provider http://ddms.usim.edu.my/
language English
topic Global system for mobile communications
Stream ciphers
spellingShingle Global system for mobile communications
Stream ciphers
Nur Hafiza Zakaria
Design of Improved Stream Cipher Algorithms for GSM Communication
description Thesis (M.Sc.)--Faculty of Science and Technology, Universiti Sains Islam Malaysia, 2012
format Thesis
author Nur Hafiza Zakaria
author_facet Nur Hafiza Zakaria
author_sort Nur Hafiza Zakaria
title Design of Improved Stream Cipher Algorithms for GSM Communication
title_short Design of Improved Stream Cipher Algorithms for GSM Communication
title_full Design of Improved Stream Cipher Algorithms for GSM Communication
title_fullStr Design of Improved Stream Cipher Algorithms for GSM Communication
title_full_unstemmed Design of Improved Stream Cipher Algorithms for GSM Communication
title_sort design of improved stream cipher algorithms for gsm communication
publisher Universiti Sains Islam Malaysia
publishDate 2015
url http://ddms.usim.edu.my/handle/123456789/8402
_version_ 1645152410517110784
score 13.222552

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