Design of image encryption algorithm based on different chaotic mapping
Mohamed Mokhtar, Nayera M. Sadek, Amira G. Mohamed · 2017
Converting information (data) from its original form to another form is known as encryption as in order to access rising the information protection. The encryption created on chaos theory includes some dynamic methods to improve the protection of image encryption. In this work, encryption image is achieved by using a different chaotic mapping. The original image is split into blocks and then different chaotic maps are employed for five stages of proposed encryption algorithm. First, the cubic map is employed to permute the pixels which contained within the blocks. Second, Henon map has been used to diffuse the permuted pixels. Third, a quadratic map has been worked to permute the blocks. Fourth, a logistic map has been used to permute all the pixels entire an image. Finally, XOR Henon map has been worked to diffuse the permuted image. High-efficiency for encryption quality algorithm has been shown by the performance analysis of proposed algorithm.