A chaos-based image encryption algorithm using wavelet transform

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. The...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:2010 2nd International Conference on Advanced Computer Control Jg. 2; S. 217 - 222
Hauptverfasser: Zhu Yu, Zhou Zhe, Yang Haibing, Pan Wenjie, Zhang Yunpeng
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.03.2010
Schlagworte:
Acceleration
Algorithm design and analysis
Chaos
Cryptography
Data communication
Data security
Frequency
Image analysis
Image reconstruction
wavelet transform
Wavelet transforms
ISBN:1424458455, 9781424458455
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
ISBN:1424458455
9781424458455
DOI:10.1109/ICACC.2010.5486684