A Novel Chaos-Based Stream Cipher for Image Encryption

Salwa K. Abd-El-Hafiz; Gamal A. Fuad; Lina A. Sayed

doi:10.24297/ijct.v13i1.2930

Authors

Salwa K. Abd-El-Hafiz Cairo University, Giza, Egypt
Gamal A. Fuad Mathematics Department, University College of Women, Ain Shams University, Cairo
Lina A. Sayed Ain Shams University, Cairo, Egypt

DOI:

https://doi.org/10.24297/ijct.v13i1.2930

Keywords:

Chaotic map, Encryption, Decryption, and Reverse order round.

Abstract

In this paper, we introduce a novel chaos-based image encryption scheme. We perform our scheme using both the binary form and decimal form of chaotic maps. We also use two chaotic maps; one generates the initial values of the other. Thus, we utilize the best two properties of chaos ergodicity and sensitivity to the initial value. We increase the security of the cipher by introducingÂ a reverse order round to resist cryptanalysis attacks.