Science and Education Publishing Journal of Computer Sciences and Applications 2328-725X 3 2 2015 04 16 Cryptanalysis Using Soft Computing Techniques 52 55 EN Harsh Bhasin Department of Computer Sc.&Engg, Jamia Hamdard University, New Delhi-62, India Asif Hameed Khan JCSA2015326 10.12691/jcsa-3-2-6 2015 03 18 2015 04 03 2015 04 16 This paper proposes a Genetic Algorithm (GAs) based cryptanalysis technique. Genetic Algorithms are the optimization techniques which are also known for robustness. The analysis and the involved theory have been presented in the paper. The designing of fitness function has been done using the statistical analysis of a Standard English Language documents. The technique has been verified using 9 text documents of about 4000 words and the results are encouraging. The technique paves way of Soft Computing techniques in Cryptanalysis.