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Design of Modified Exclusive-128 Bit NLFSR Stream Cipher and Randomness Test

by K. Rajam, I. Raja Mohamed, K. J. Jegadish Kumar
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 91 - Number 12
Year of Publication: 2014
Authors: K. Rajam, I. Raja Mohamed, K. J. Jegadish Kumar
10.5120/15934-5205

K. Rajam, I. Raja Mohamed, K. J. Jegadish Kumar . Design of Modified Exclusive-128 Bit NLFSR Stream Cipher and Randomness Test. International Journal of Computer Applications. 91, 12 ( April 2014), 32-36. DOI=10.5120/15934-5205

@article{ 10.5120/15934-5205,
author = { K. Rajam, I. Raja Mohamed, K. J. Jegadish Kumar },
title = { Design of Modified Exclusive-128 Bit NLFSR Stream Cipher and Randomness Test },
journal = { International Journal of Computer Applications },
issue_date = { April 2014 },
volume = { 91 },
number = { 12 },
month = { April },
year = { 2014 },
issn = { 0975-8887 },
pages = { 32-36 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume91/number12/15934-5205/ },
doi = { 10.5120/15934-5205 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:12:34.678429+05:30
%A K. Rajam
%A I. Raja Mohamed
%A K. J. Jegadish Kumar
%T Design of Modified Exclusive-128 Bit NLFSR Stream Cipher and Randomness Test
%J International Journal of Computer Applications
%@ 0975-8887
%V 91
%N 12
%P 32-36
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this paper, we describe modified Exclusive-128 NLFSR stream cipher which generates 128 bit keystreams using only NLFSR element as its main function and XOR operation. It consists of different sizes of NLFSRs both in Fibonacci and Galois configurations which offer better trade off between the algorithm security and hardware capability. Further, using this modified version of Exclusive-128 NLFSR stream cipher, analysis has been done for pseudorandom test to prove that this stream cipher is highly non-linear and truly randomness when all the initial key inputs are either zero and/or one.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Cryptography Stream cipher NLFSR Fibonacci configuration Galois configuration NIST Randomness Test.

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