Heurísticas para Matriz de Substituição do LSB utilizando Algoritmos Genéticos e Path Relinking

Marcus V. M. VieiraAndré L. BrazilAura ConciCélio V. N. Albuquerque

With the increase of data traffic the need for transmitting secure information gains another perspective. One way to protect the data sent over the web is to embed the relevant information within an unsuspected image. This paper proposes the protection of secret data by combining the genetic algorithm with a path relinking process to optimize the substitution matrix in order to improve the stego image quality. Computational results show that the proposed combination outperforms the LSB substitution technique, the genetic algorithm technique and other variations, concerning both security and stego image quality.

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