Evolutionary Encryption

Abstract

In this article, we present an application of evolutionist algorithms to cryptography and especially to symmetrical ciphering. First of all, we reduced ciphering problem to optimisation problem. Then, we assign to it a formalisation similar to the one used for the resolution of the TSP (travelling salesman problem) via evolutionary algorithm. Our attention focussed then on coding the chromosomes, establishing the fitness function and the choice of the adapted genetic operators. On the cryptographic side, we illustrate the processes of ciphering and decoding the message previously scrambled, thanks to the symmetrical key generated by our own evolutionist algorithm. Examples of applications will be given at the end of this article followed in the same way by an evaluative discussion of this work in comparison with other algorithms category.