3D Content Encryption Using Multi-Level Chaotic Maps

Nashwan Alsalam Ali; Abdul Monem S. Rahma; Shaimaa H. Shaker

doi:10.24996/ijs.2023.64.5.35

Authors

Nashwan Alsalam Ali Computer Department, College of Education for Women, University of Baghdad, Baghdad, Iraq https://orcid.org/0000-0002-9341-9278
Abdul Monem S. Rahma Computer Sciences Department, Al-Maarif University College, Anbar, Iraq
Shaimaa H. Shaker Computer Science Department, University of Technology, Baghdad, Iraq

DOI:

https://doi.org/10.24996/ijs.2023.64.5.35

Keywords:

3D content, 2D Logistic map, 3D Lorenz map, chaotic map, 1D Tent map

Abstract

Nowadays, 3D content is becoming an essential part of multimedia applications, when the 3D content is not protected, hackers may attack and steal it. This paper introduces a proposed scheme that provides high protection for 3D content by implementing multiple levels of security with preserving the original size using weight factor (w). First level of security is implemented by encrypting the texture map based on a 2D Logistic chaotic map. Second level is implemented by shuffling vertices (confusion) based on a 1D Tent chaotic map. Third level is implemented by modifying the vertices values (diffusion) based on a 3D Lorenz chaotic map. Results illustrate that the proposed scheme is completely deform the entire 3D content according to Hausdorff Distance (HD) approximately around 100 after the encryption process. It provides a high security against brute force attack because it has large key space equal to 10¹⁶⁵ and secret key sensitivity using NPCR near 99:6% and UACI near 33:4%. The histogram and HD indicate the decrypted 3D content is identical to the origin where HD values approximate zero.