Robust Color Image Encryption Using 3D Chaotic Maps and S-Box Algorithms

Abstract

Chaos' key qualities, such as initial state sensitivity and unpredictability, make it an ideal contender for cryptography applications. This study presents an encryption scheme for efficient and secure image encryption. The encryption scheme includes two ciphering stages and a substitution stage. In this work, an algorithm for key generation has been proposed. The design of a Pseudo-random number generator that used for key generation is based on chaotic algorithms. The chaotic map will be utilised in encryption systems due to its high security. To evaluate the proposed PRNG randomness, NIST tests are used for these sequences. In the following subsection, security analysis of the proposed image encryption technique has been made to know the efficiency of the proposed technique. The statistical analysis now reaffirms that the technique is secure and efficient for and encrypting simple or complex images, be it in shades of black and white or, colorful. By a comparison with past chaotic investigations, demonstrating that our algorithm is competitive with earlier work.