Chaos-based image encryption using hybrid model of linear-feedback shift register system and deoxyribonucleic acid

The security of digital images has been under much more attack recently. A novel image security based on a hybrid model of deoxyribonucleic acid (DNA), Linear-Feedback Shift Register (LFSR) and logistic map has been proposed in this study. In the first step each pixel of plain-image converted to DNA sequence using DNA rules and chaotic map, then the four bases DNA have generated using LFSR. These two DNA sequences have been XOR’ed. with each other. Experimental results and computer simulations both confirm that the proposed scheme not only demonstrates excellent encryption but also resists various typical attacks.