Image Encryption Combining EZW and AES
Received date: 2003-01-22
Revised date: 2003-04-17
Online published: 2004-01-10
侯启槟 , 王阳生 , 黄向生 , 周晓旭 . 结合EZW和AES的图像加密机制[J]. 中国科学院大学学报, 2004 , 21(1) : 119 -124 . DOI: 10.7523/j.issn.2095-6134.2004.1.019
With wide spread of image and video in internet, various kinds of novel implementations have ap-peared in recent years .In some of these implement ations,private-inform at ion-contain images are employed usually .Due to vulnerability to illegal accessing during transmission of image and video,requirement of secu-rity is impending .A new algorithm is addressed and the essence of this method is that by combination of Dis-crete Wavelet Transform(DWT), Embedded Zerotree Wavelet Algorithm(EZW),and Advanced Encry p-tion Standard(AES), encrypt compressed stream to ensure the transmission efficiency and security .The ex-periments demonstrate that our new algorithm can improve the security of media stream besides keeping hig hcompression rate.
Key words： image encryption; image compression; DWT; EZW; AES
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