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Hundreds of image encryption schemes based on the conventional 2D image space exist in the literature. Very few were built using the 3D image space. In this study, for better security, we present a new RGB (color image) encryption scheme based on the Dynamic 3D scrambled image (D3DSI), 5D multi-wing-hyperchaotic-system and DNA computing. After providing a color image as input, its three components are reshaped in a 1D array. These three components are concatenated to form a single 1D array. A 3D scrambled image with arbitrary dimensions is created. Pixels from the 1D array are shifted randomly to the different cells of the 3D scrambled image. Afterwards, for the realization of the diffusion effects, an XOR operation is performed between the key image and the 3D scrambled image. Next, the pixels data and the DNA key image are DNA-encoded. The pixels data in the form of DNA strands is once …