A new scan pattern method for color image encryption based on 3D-Lorenzo chaotic map method

摘要

Securing the exchange of digital images in the form of huge multimedia data over the internet with limited bandwidth emerges as a significant and sensitive issue. In this paper, a new scan pattern method for protecting color image data based on the 3D-Lorenzo chaotic map method is proposed. The scan pattern method is used for generating three different masks one for each channel of colored image. These masks considered the position of the shuffling pixels which is used as input parameters to the 3D-Lorenzo chaotic map for ciphering the image in a new technique. The experimental results demonstrate that the developed method has the benefit of quick and secure protection of brute force attacks. Hence, the performance analysis of color image encryption reveals a correlation coefficient of almost (CC 0.00036) and entropy greater than (7.9984). It can be seen that this method yields better security performance in comparison to the results obtained from other methods with a fast process.