A Chaos-Based Image Encryption Algorithm Using Wavelet Transform

摘要：

In recent years many chaos-based image cryptosystems are proposed. As encryption process is applied to the whole image, it is difficult to improve the efficiency. In this paper, wavelet decomposition is used in our algorithm to concentrate the main information of image to the low frequency part. Then high-strength chaotic encryption is applied. After that, wavelet reconstruction and Arnold scrambling are used for diffusion. Finally, another wavelet decomposition and encryption round is needed to complete the encryption. The effective acceleration of chaos-based image cryptosystem is thus achieved. Theoretical analysis and experimental results show that the proposed algorithm has large key-space, high efficiency, and satisfied security, suits for image data transmission.

关键词： cryptography wavelet transform chaos

作者: Zhu Yu Zhou Zhe Yang Haibing Pan Wenjie Zhang Yunpeng

作者单位: College of Software and Microelectronics,Nothwestern Polytechnical University Xian, China

会议类型: 国际会议

会议名称: The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)

会议地点: 沈阳

会议语种:英文

页码: 217-222

在线出版日期: 2010-03-27（万方平台首次上网日期，不代表论文的发表时间）