An Image Encryption Scheme Using Chaotic Sequence for Pixel Scrambling and DFrFT

Abstract

Now a day digitalization is everywhere in the world, and there is a huge amount of data transfer takes place every second on the internet. In this digital world major contribution of data as Images. The entire data transfer will take place on the internet, i.e., a public network, so the security of these Image data is very important. Image encryption can be done through different methods, these are cryptographic algorithms and various transforms were used for Image encryption. In this paper, an innovative Image encryption algorithm is proposed using Image Pixel Scrambling and DFrFT. The Image pixel scrambling operation is performed using the sequence generated by the chaotic function. The scrambled Image is encrypted through DFrFT. The developed algorithm improves the information security and the robustness of the system. The effectiveness and the efficiency of the proposed algorithm are verified from the simulation results.