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A Modified Encryption Technique using Playfair Cipher 10 by 9 Matrix with Six Iteration Steps
Mallabhum Istitute of Technology Bishnupur, West Bengal, India.
Department at Mallabhum Institute of Technology, Campus Braja-Radhanagar, West Bengal, India.
Mallabhum Istitute of Technology Bishnupur, West Bengal, India.
2014 (English)In: International Journal of Advanced Research in Computer Engineering & Technology, ISSN 2278-1323, Vol. 3, no 2, p. 307-312Article in journal (Refereed) Published
Abstract [en]

One of the well-known digraph substitution cipher is the Playfair Cipher. It secures information mathematically by mangling message with key. The privacy of intended sender and receiver information is protected from eavesdropper. However the original 5 x 5 Playfair Cipher can support only 25 uppercase alphabets. Here we have implemented a new technique which includes a rectangular matrix having 10 columns and 9 rows and six iteration steps for encryption as well as decryption purpose. This 10 x 9 rectangular matrix includes all alphanumeric characters and some special characters. Cryptanalysis is done to show that the modified cipher is a strong one. Finally we have implemented this concept with the help of MATLAB.

Place, publisher, year, edition, pages
Shri Pannala Research Institute of Technology , 2014. Vol. 3, no 2, p. 307-312
Keywords [en]
Playfair cipher, Substitution cipher, Special characters, Cryptanalysis, Symmetric encryption
National Category
Engineering and Technology Media and Communication Technology
Identifiers
URN: urn:nbn:se:oru:diva-80534OAI: oai:DiVA.org:oru-80534DiVA, id: diva2:1413320
Available from: 2020-03-10 Created: 2020-03-10 Last updated: 2020-03-10

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Chakraborty, Subham

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1112131415161714 of 226
CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf