Authors:
Ibrahim Abdul Rasool Hammood,Ayad Ghazi Naser Alshamri,DOI NO:
https://doi.org/10.26782/jmcms.2019.10.00077Keywords:
Cryptography,Stream Cipher,Frequency,LFSR,Abstract
In this paper, the key generators generated by using (Brüer generator, Geffe generator, and Linear generator), then improved these key generators (Brüerand Geffe). In this research was the focus on the frequency test and then compares the outputs with results in a chi-square.Refference:
I. C. Paar, J. Pelzl, 2010,”Understanding Cryptography”, Springer, Verlag
Berlin Heidelberg.
II. A. Klein, 2013, “Stream Ciphers”, Springer Verlag London.
III. Fardous Eljadi, 2017, “Dynamic Linear Feedback Shift Registers: A Review”,
Kuala Lumpur, Malaysia.
IV. Alice Reinaudo, 2015, “Empirical testing of pseudo random number
generators based on elliptic curves”, Linnaeus University, Sweden.
V. Yassir Nawaz, 2007, “Design of Stream Ciphers and Cryptographic
Properties of Nonlinear Functions”, University of Waterloo, Canada.
VI. Hossam El-din H. Ahmed, Hamdy M. Kalash, and Osama S. Farag Allah,
2005, “An Efficient Chaos-Based Feedback Stream Cipher (ECBFSC) for
Image Encryption and Decryption”, Menoufia University.
VII. M. Robshaw and O. Billet (Eds.), 2008, ” Design of a New Stream Cipher—
LEX”, Springer-Verlag Berlin Heidelberg.
VIII. Roy Ward, Tim Molteno, 2007, “Table of Linear Feedback Shift Registers”,
University of Otago.
IX. Abdullah Ayad Ghazi,Faez Hassan Ali,2018, “Robust and Efficient Dynamic
Stream Cipher Cryptosystem”,Iraqi Journal of Science,University of
Baghdad.
X. Xingyuan Wang, Xiaojuan Wang, Jianfeng Zhao, Zhenfeng Zhang, 2010,”
Chaotic encryption algorithm based on alternant of stream cipher and block
cipher “, Springer, Dalian University of Technology.
XI. Gordon Meiser, 2007,” Efficient Implementation of Stream Ciphers on
Embedded Processors”, Ruhr-University Bochum (Germany).
XII. Rusol M. Shaker Alzewary,Ayad G. Naser Al-Shammar,2016, “Designof
High Efficiency Non-linear Keys Generator Based on Shift Registers”, Iraqi
Journal of Science,University of Baghdad.