Publications scientifiques
Diophantine Solutions Based Permutation for Image Encryption (ouvre dans un nouvel onglet)
Auteurs
Université de Yaoundé I
* (Auteur correspondant)
Bertrand Bodo
Publications scientifiques
* (Auteur correspondant)
Bertrand Bodo
Joseph Yves Effa
Maaruf Ali
Journal of Algorithms & Computational Technology
A permutation technique based on the resolution of the system of three independent Diophantine equations is presented. Each Diophantine equation parameters are two positive integers generated from a chaotic system. The resulting solutions are then used for rearranging the positions of the bits and pixels in the ciphered sequence. The performance of such a technique is compared to GRP and Xiang permutation algorithms. From this permutation algorithm an efficient chaos-based block cipher using a chaotic logistic map is proposed. Statistical analyses of this system show a high security level and non-propagation of errors.