The MSK: a simple and robust image encryption method

Abstract

This article proposes a new image encryption approach based on bitplane decomposition methods and chaotic maps. This approach does not depend on any additional images to initiate the encryption process. The encryption method involves a chaotic logistic map to create the initial security bitplanes. The proposed approach is flexible enough to choose any one of the available bitplane decomposition methods. Moreover, some different scrambling algorithms can be used that can efficiently scramble the bitplanes, instead of using the proposed scrambling algorithm. The proposed method can be implemented very easily and does not involve highly complex operations that makes the algorithm suitable for real time applications. The proposed method is simulated, tested, compared with some standard image encryption approaches and analyzed with the help of some standard cipher image evaluation parameters. Both visual and quantitative analysis of the obtained results are presented in detail. The results of the experiments are very promising and shows effective encryption performance on various types of images, that makes the proposed algorithm suitable for the real-life applications. The experimental results also demonstrate the strength of the proposed algorithm against different types of the cryptographic attacks.