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  Applicability of Chaotic Network and Jordan Network in Cryptography with Comparative Analysis  
  Authors : Anindita Das Bhattacharjee; Abhijit Mitra; Asiya Amreen Zaman
  Cite as:

 

This research aims to demonstrate the functionalities and prediction capabilities of different neural networks on substitution cipher. To acquire the best possible extent of applicability all possible plaintexts are verified. The normalized Feed Forward Back Propagation Network with Feature Scaling approach results in 50% - 60% of accuracy whereas N – state Sequential Machine with Jordan Network enhanced the accuracy to 100%. This comparative study illustrates the strength of recursive backpropagation over simple back-propagation technique. The incompatibility to deal with plaintext with alphanumeric value makes NState Sequential Machine less efficient. Further, in comparison with former researches on N-State Sequential Machine; that was designed for 3-bit plaintext input with alphabet range [A-H], modifications are performed, to increases the accepted input bit range from 3-bit to 5-bit. This increases the input alphabet acceptance range [A-Z] including few punctuations marks- but falls short to deal with ‘alphanumeric values’. Finally, Chaotic Network is implemented and proved to be a most promising, efficient, significant and well-suited technique to deal with all input plaintexts.

 

Published In : IJCSN Journal Volume 7, Issue 2

Date of Publication : April 2018

Pages : 49-53

Figures :14

Tables : 21

 

Anindita Das Bhattacharjee : Started her career in industry as a trainee software developer for a year. She has done M. Tech in Computer Science from National Institute of Technology (NIT), Durgapur. She secured a position of First Class Second in M. Tech. Currently she is working in Swami Vivekananda Institute of Science and Technology. She has been teaching for about 10 years in Computer Science. She is an author of a book “Artificial Intelligence and Soft Computing for Beginners” published in 2013 and author of book chapters in the book “Intelligent Analysis for Multimedia Information” published by IGI Global and indexed in Scopus.

Abhijit Mitra : Pursuing B. Tech. Final year student in Computer Science and Engineering in Swami Vivekananda Institute of Science and Technology.

Asiya Amreen Zaman : Pursuing B. Tech. Final year student in Computer Science and Engineering in Swami Vivekananda Institute of Science and Technology. Secured 3rd position in International Olympiad of Science and 2nd position in Olympiad of English 2011, New Delhi.

 

Chaotic Neural Network, Cryptography, Feature Scaling, Jordan Network, Modified Caesar Cipher, N – State Sequential Machine, Pangrams, Unity Based Normalization

At the initial stage, it was intended to depict statistically the prediction capability of three specific Neural Networks on Modified Caesar Substitution Cipher technique (with Substitution Factor k=6) to identify the best suited Neural Networks. This research achieves conclusion in interdependent five sequential stages.

 

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