New Image Encryption Scheme Using Chaotic Maps

Abstract

Data on the Internet is always vulnerable to different types of attacks due to the public nature of the Internet, which is the only source of communication all over the world. To protect sensitive information, many encryption techniques like Gingerbreadman chaotic map and S8 permutation-based image encryption scheme are proposed. However, due to security issues in these techniques, 3D Logistic map based confusion and diffusion processes are employed which solve those security problems.3D Logistic map was used to eliminate the strong correlation between the plain text image pixels. A random matrix is created in the diffusion stage via a 3D Logistic map and XORed with the scrambled image. The final ciphertext image is extracted using existing Gingerbread-man chaotic map based S-Box. The proposed scheme is analyzed experimentally and statistically using key space analysis, information entropy analysis, and differential analysis. Results are also validated via the Number of Pixel Rate Change (NPRC) to ensure the security and robustness of the proposed scheme.