Evaluation of Aizawa Chaotic Map in Digital Image Protection

Abstract

In recent years, great concerns have been raised regarding the issue of digital image protection due to the increasing demand for security services. To meet this challenge, a novel chaos-based approach is suggested in this paper. To address the security and efficiency problems encountered by many existing permutation-diffusion type image ciphers the new scheme utilizes Aizawa chaotic map which enhances the security against known/chosen –plaintext attack. Experimental tests were carried out and the results indicate that the proposed scheme provides an effective and efficient way for real-time secure digital image transmission over unsecured networks.