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Playfair using DES Algorithm, 7 by 9 Matrix and Colour Substitution

by C. S. Subramaniyam
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 150 - Number 6
Year of Publication: 2016
Authors: C. S. Subramaniyam
10.5120/ijca2016911553

C. S. Subramaniyam . Playfair using DES Algorithm, 7 by 9 Matrix and Colour Substitution. International Journal of Computer Applications. 150, 6 ( Sep 2016), 30-34. DOI=10.5120/ijca2016911553

@article{ 10.5120/ijca2016911553,
author = { C. S. Subramaniyam },
title = { Playfair using DES Algorithm, 7 by 9 Matrix and Colour Substitution },
journal = { International Journal of Computer Applications },
issue_date = { Sep 2016 },
volume = { 150 },
number = { 6 },
month = { Sep },
year = { 2016 },
issn = { 0975-8887 },
pages = { 30-34 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume150/number6/26099-2016911553/ },
doi = { 10.5120/ijca2016911553 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T23:55:14.005213+05:30
%A C. S. Subramaniyam
%T Playfair using DES Algorithm, 7 by 9 Matrix and Colour Substitution
%J International Journal of Computer Applications
%@ 0975-8887
%V 150
%N 6
%P 30-34
%D 2016
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this paper the playfair cipher is handled in a new way from the normal way of encrypting the plain text with alphabet only.In this paper encrypting the plain text with the help of colours is discussed.Traditionally encrypting the text elements is done by the use of the text only,but here new encryption techinique by using the colours is used. In this paper two different things that is the difference in the normal playfair techinique,and the other is that encrypting with the colours which makes the decryption by the hackers some more difficult.Then the other thing is that we are implementing the DES techinique in playfair to make it more difficult for the hacker to decrypt.Through this method we can encrypt both the uppercase and lowercase letters with case sensitive patterns and also the numeric datas.First use the colour substitution for the plain text and then the encryption takes place with the help of colours.

References
  1. Stallings, W. (2006). Cryptography and Network Security: Principles and Practice(4th ed.). Prentice Hall: New York
  2. Stallings, W. (2004). Cryptography and Network Security – Principles and Practices(3rd ed.). Pearson Education: Boston
  3. Stallings, W. (2003), Cryptography and Network Security, (3rd ed.). Pearson Education:Boston
  4. A. Aftab Alam, B. Shah Khalid, and C. Muhammad Salam,” A Modified Version of Playfair Cipher Using 7×4 Matrix”, International Journal of Computer Theory and Engineering, Vol. 5, No. 4, August 2013.
  5. Sombir Singh* Sunil K. Maakar Dr.Sudesh Kumar,” Enhancing the Security of DES Algorithm Using Transposition Cryptography Techniques”, Volume 3, Issue 6, June 2013 ISSN: 2277 128X International Journal of Advanced Research in Computer Science and Software Engineering
  6. Yahaya Bala Zakariyau, Zirra Peter Buba and Gregory Maksha Wajiga,” Securing Message Transactions through Modified Playfair Cipher Technique”, IJISET - International Journal of Innovative Science, Engineering & Technology, Vol. 2 Issue 12, December 2015.
  7. Subhajit Bhattacharyya, Nisarga Chand and Subham Chakraborty,”A Modified Encryption Technique using Playfair Cipher 10 by 9 Matrix with Six Iteration Steps”, International Journal of Advanced Research in Computer Engineering & Technology (IJARCET) Volume 3, Issue 2, February 2014.
  8. Monika Arora, Anish Sandiliya and Jawad Ahmad Dar,” Modified Encryption Technique by Triple Substitution on Playfair Square Cipher Using 6 By 6 Matrix with Five Iteration Steps”, International Journal of Advanced Research in Computer Science and Software Engineering Volume 5, Issue 4, 2015.
  9. en.wikipedia.org/wiki/Playfair_cipher
  10. en.wikipedia.org/wiki/Cryptography
Index Terms

Computer Science
Information Sciences

Keywords

playfair colour substitution DES algorithm encryption decryption

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