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Mathematical Problems in Engineering
Volume 2013 (2013), Article ID 728375, 13 pages
http://dx.doi.org/10.1155/2013/728375
Research Article

A New Hybrid Chaotic Map and Its Application on Image Encryption and Hiding

College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China

Received 4 June 2013; Accepted 27 September 2013

Academic Editor: Dumitru Baleanu

Copyright © 2013 Yang Cao. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A new hybrid chaotic map is constructed in this paper and applied to image encryption and hiding. MD5 is used as part of initial condition and control parameter to perturb the trajectory in order to further increase the security against plaintext-chosen attacks and differential attacks. Ciphered image is embedded into several carrier images to reduce suspiciousness and to increase robustness. The results demonstrate that the proposed scheme is of great security, robustness, and efficiency.