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A Comparison bet Memetic alg and Genetic alg for the cryptanalysis of Simplified Data Encryption Standard Algo-with-cover-page-v2



Accelerating the world's research.
A Comparison between Memetic
algorithm and Genetic algorithm for
the cryptanalysis of Simplified Data
Encryption...
IJNSA Journal
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International Journal of Network Security & Its Applications (IJNSA), Vol.1, No 1, April 2009 
34
A Comparison between Memetic algorithm and Genetic algorithm for 
the cryptanalysis of Simplified Data Encryption Standard algorithm
 
Poonam Garg
Institute of Management Technology, India 
pgarg
@imt.edu
 
 
 
 
 
 
 
 
 
Abstract 
 
Genetic algorithms are a population-based Meta heuristics. They have been successfully applied to many 
optimization problems. However, premature convergence is an inherent characteristic of such classical 
genetic algorithms that makes them incapable of searching numerous solutions of the problem domain. A 
memetic algorithm is an extension of the traditional genetic algorithm. It uses a local search technique to 
reduce the likelihood of the premature convergence. The cryptanalysis of simplified data encryption 
standard can be formulated as NP-Hard combinatorial problem. In this paper, a comparison between
memetic algorithm and genetic algorithm were made in order to investigate the performance for the 
cryptanalysis on simplified data encryption standard problems(SDES). The methods were tested and 
various experimental results show that memetic algorithm performs better than the genetic algorithms for 
such type of NP-Hard combinatorial problem. This paper represents our first effort toward efficient 
memetic algorithm for the cryptanalysis of SDES
.
 
 

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