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Reseach Article

Variable-length Hill Cipher with MDS Key Matrix

by Kondwani Magamba, Solomon Kadaleka, Ansley Kasambara
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 57 - Number 13
Year of Publication: 2012
Authors: Kondwani Magamba, Solomon Kadaleka, Ansley Kasambara
10.5120/9178-3587

Kondwani Magamba, Solomon Kadaleka, Ansley Kasambara . Variable-length Hill Cipher with MDS Key Matrix. International Journal of Computer Applications. 57, 13 ( November 2012), 43-45. DOI=10.5120/9178-3587

@article{ 10.5120/9178-3587,
author = { Kondwani Magamba, Solomon Kadaleka, Ansley Kasambara },
title = { Variable-length Hill Cipher with MDS Key Matrix },
journal = { International Journal of Computer Applications },
issue_date = { November 2012 },
volume = { 57 },
number = { 13 },
month = { November },
year = { 2012 },
issn = { 0975-8887 },
pages = { 43-45 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume57/number13/9178-3587/ },
doi = { 10.5120/9178-3587 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:00:23.185112+05:30
%A Kondwani Magamba
%A Solomon Kadaleka
%A Ansley Kasambara
%T Variable-length Hill Cipher with MDS Key Matrix
%J International Journal of Computer Applications
%@ 0975-8887
%V 57
%N 13
%P 43-45
%D 2012
%I Foundation of Computer Science (FCS), NY, USA
Abstract

The Hill Cipher is a classical symmetric cipher which breaks plaintext into blocks of size m and then multiplies each block by an m×m key matrix to yield ciphertext. However, it is well known that the Hill cipher succumbs to cryptanalysis relatively easily. As a result, there have been efforts to strengthen the cipher through the use of various techniques e. g. permuting rows and columns of the key matrix to encrypt each plaintext vector with a new key matrix. In this paper, a method is proposed to strengthen the security of the Hill cipher against a known-plaintext attack by encrypting each plaintext matrix by a variable-length key matrix obtained from a Maximum Distance Separable (MDS) master key matrix.

References
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Index Terms

Computer Science
Information Sciences

Keywords

MDS matrix Variable-Length Cipher