A Color Image Encryption Using E0 Keystream Generator with Chaotic Map

Abstract

Development and advancement of technology and the transfer and sending of images over the Internet, it has become necessary to protect images from brute-force attacks. Therefore, one crucial step in securing images from intrusion or unwanted access is image encryption. In this paper, the E0 algorithm is used in Bluetooth encryption, but here we will use the keystream generator of this algorithm in image encryption once and use the logistic map and the E0 key stream generator again, and then we will compare the results of these methods. The new methods take advantage of the disordered movement of  logistic map to further improve the confusion and diffusion aspects of image encryption processes. The E0 algorithm can produce a stream that appears to be random, which is then used to image encryption, which leads to higher entropy and lower correlation with the image. Several different tests this was done to evaluate the performance of the encoder scheme generated using  E0 algorithm and logistic map, including randomness tests, correlation coefficient analysis parameters, uniform average intensity of change (UACI) ,number of pixels change rate (NPCR), and other tests that prove its efficiency. The paper concludes that the E0 algorithm enhanced by the logistic map not only provides more secure and efficient image encryption but also focuses on preserving the confidential information in the image more effectively.