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Cryptanalysis of DES-16 using Binary Firefly Algorithm

In this paper, we present a novel approach for the cryptanalysis of Data Encryption Standard based on Binary Firefly Algorithm using a chosen plaintext attack. The Firefly Algorithm gives promising results with simple ciphers, but to our best of knowledge, has not been experimentally investigated with respect to cryptanalysis of product ciphers. This work implements the Binary Firefly Algorithm for cryptanalysis of DES and its results are compared with those obtained using Standard Genetic Algorithm. Experimental results show that the Binary Firefly Algorithm for cryptanalysis of DES, on average, is more efficient than Standard Genetic Algorithm in terms of higher fitness of optimal keys obtained.