A new colour image encryption approach using a combination of two 1D chaotic map

What is it about?

In this paper, we propose an improved chaotic map by coupling two existing methods. Numerical tests prove that the proposed technique presents closely complex behaviour and wider chaotic range than their seed maps. In this paper a new colour image encryption approach using the enhanced chaotic map has been suggested. The proposed scheme is based on the conventional confusion-diffusion structure that contains a new permutation process, it has designed to randomly scramble neighbouring pixels. The performance and the quality measurement of the proposed scheme are analysed by comparing it with some existing research.

Featured Image

Photo by Markus Spiske on Unsplash

Photo by Markus Spiske on Unsplash

Why is it important?

In this paper, we have introduced an improved chaotic map by coupling two existing techniques. The test results prove that this latter presents better chaos performance than their seed maps. Then, we propose a colour image encryption technic by using the improved chaotic map. The proposed technique defines a new permutation process to randomly scramble adjacent pixels. The effectiveness of the proposed algorithm is analysed by comparing it with some related works and it is found that the proposed algorithm can resist against some attacks and can provide acceptable security.

Perspectives