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K.Madhuravani

Work place: PJMS CET

E-mail: kokk_madhu28@rediffmail.com

Website:

Research Interests: Information Security, Network Architecture, Network Security, Information-Theoretic Security

Biography

Mrs K Madhura Vani is a research scholar actively engaged in research activities in Network Security area.

Author Articles
A Modified Hill Cipher using Randomized Approach

By A.V.N.Krishna K.Madhuravani

DOI: https://doi.org/10.5815/ijcnis.2012.05.07, Pub. Date: 8 Jun. 2012

In Hill Cipher, the plain text is divided into equal sized blocks. The blocks are encrypted one at a time. Cipher text only Crypto analysis of Hill Cipher is difficult. But it is susceptible to known plain text attack. In this work, Hill Cipher is improvised to make it more secure. The output of hill cipher is randomized to generate multiple cipher texts for one plain text. Any one cipher text is used for transmission of data. This approach thwarts any known plain text attacks and also chosen cipher text attacks.

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