Asymmetric Image Encryption Approach with Plaintext-Related Diffusion
Jakub Oravec, Ján Turán, Ľuboš Ovseník, Tomáš Ivaniga, D. Solus, Michal Márton · Radioengineering · 2018
This paper deals with topic of image encryption based on chaotic maps.A solution which has advantage of robustness against chosen-plaintext attacks is proposed.Permutations of image pixels are carried out in a way that enables operations on grayscale images with arbitrary resolution.All calculations done with user key and also all diffusion processes employ the same chaotic map.This feature enables usage of look-up tables which reduce computational times.The paper includes several experiments which verify achieved results and also briefly describes advantages and drawbacks of proposed solution.