Chaotic Image Encryption Scheme Based on Modified Arnold Cat Map and Henon Map

摘要

In today's scenario, the usage of images has become very popular in many applications like military, medical, social media and industries. Sensitive images are communicated through insecure networks. Therefore some methods are required by which the images can be transmitted securely over the network. The proposed algorithm is a modified image encryption algorithm based on Arnold Cat Map. The scheme involves confusion process in which the position of each pixel of the image is shuffled using Cat Map. The shuffling of pixel position leads to the generation of a permuted image which is secured for transmission. Security analysis for the suggested scheme is performed using correlation coefficient (which is 0.6402 horizontally and 0.6954 vertically) and information entropy (which is 7.9504) analysis.