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Application of Genetic Algorithm in Cryptanalysis of Mono-alphabetic Substitution Cipher

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Application of Genetic Algorithm in Cryptanalysis of Mono-alphabetic Substitution Cipher


Dr. Prabha Shreeraj Nair

https://doi.org/10.31142/ijtsrd2191



Dr. Prabha Shreeraj Nair "Application of Genetic Algorithm in Cryptanalysis of Mono-alphabetic Substitution Cipher" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-4, June 2017, pp.728-736, URL: https://www.ijtsrd.com/papers/ijtsrd2191.pdf

Today, security is a vital concern in computer science, cryptography is used vastly for implementation of the same. Cryptanalysis is a process in which the security is attempted to breach and the complexity of this process is considered as security measurement. As cryptographic algorithm is open to all, the whole strength lies in the complexity of the key i.e. efforts to crack the key. Mostly the strength of the key is shown through its length, eventually the number of communication (Brute- force method). Genetic algorithms are considered to be a tool for meta heuristic applications. In this work an attempt is made to carry out cryptanalysis, through genetic algorithms. In this, mono-alphabetic substitution cipher technique is considered. The experiment is carried out for four key samples, and attempt to break with variations in genetic operators i.e. selection, crossover and mutation. Regarding variations, for selection- random with elitism, roulette wheel and tournament options are used, for crossover – 1 -point, 2-point and Uniform options are used, with interchanging mutation.

Genetic algorithm, Ciphers, Encryption, Roulette wheel selection


IJTSRD2191
Volume-1 | Issue-4, June 2017
728-736
IJTSRD | www.ijtsrd.com | E-ISSN 2456-6470
Copyright © 2019 by author(s) and International Journal of Trend in Scientific Research and Development Journal. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0) (http://creativecommons.org/licenses/by/4.0)

International Journal of Trend in Scientific Research and Development - IJTSRD having online ISSN 2456-6470. IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas like Sciences, Technology, Innovation, Engineering, Agriculture, Management and many more and it is recommended by all Universities, review articles and short communications in all subjects. IJTSRD running an International Journal who are proving quality publication of peer reviewed and refereed international journals from diverse fields that emphasizes new research, development and their applications. IJTSRD provides an online access to exchange your research work, technical notes & surveying results among professionals throughout the world in e-journals. IJTSRD is a fastest growing and dynamic professional organization. The aim of this organization is to provide access not only to world class research resources, but through its professionals aim to bring in a significant transformation in the real of open access journals and online publishing.

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