A Chaos-Based Image Encryption Algorithm Using Wavelet Transform

被引：18

作者：

Zhu Yu ^{[1
]}

Zhou Zhe ^{[1
]}

Yang Haibing ^{[1
]}

Pan Wenjie ^{[1
]}

Zhang Yunpeng ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Coll Software & Microelect, Xian 710072, Peoples R China

来源：

2ND IEEE INTERNATIONAL CONFERENCE ON ADVANCED COMPUTER CONTROL (ICACC 2010), VOL. 2 | 2010年

关键词：

cryptography; wavelet transform; chaos;

D O I：

10.1109/ICACC.2010.5486684

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

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.

引用

页码：217 / 222

页数：6

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