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Image Encryption Based on Development of Hénon Chaotic Maps using Fractional Fourier Transform

In this paper, the authors propose an image encryption scheme based on the development of a Henon chaotic map using fractional Fourier transform FRFT which is introduced to satisfy the necessity of high secure image. This proposed algorithm combines the main advantages of confusion and diffusion with FRFT, it use Arnold Cat map for confusion and Henon chaotic map or one of the proposed Henon chaotic maps for diffusion. The proposed algorithm is compared with some image encryption algorithms based on Arnold Cat map, Baker chaotic map, Henon chaotic map and RC6. The authors perform a comparison between them in several experimental tests as statistical analyses, processing time and security analysis. The authors find from these comparison tests that the proposed algorithm demonstrates good result even better than RC6 and other chaotic maps in some cases.