An efficient hybrid chaotic map-based encryption technique for multiple image security systems

Researchers are increasingly interested in image encryption in the modern technological era. Their goal is to improve the security of image data from unauthorized sources. Due to its randomness and unpredictable behavior, chaos theory is considered the most suitable method for encrypting images. An image encryption algorithm based on diffusion maps is presented in this paper. An element of nonlinearity is generated by modifying the pixel values with a chaotic map first. Three chaotic maps are used in the proposed image encryption scheme. In an efficient encryption algorithm based on the improved three chaotic maps, the permuted image is subjected to a diffusion process using the key from the original image. This scheme has the advantage of a large key space and is resistant to various attacks. Real-time applications are suitable for the proposed scheme because of their high-security level and low computational complexity.