基于提升小波变换LWT的AES数据加密水印技术  

Watermarking of AES Data Encryption Based on the Lift Wavelet Transform

作　　者：李伟 孙云娟[2] LI Wei;SUN Yunjuan(College of Electronic and Electrical Engineering,Henan Normal University,Xinxiang 453007,China;Xinlian College,Henan Normal University,Xinxiang 453007,China)

机构地区：[1]河南师范大学电子与电气工程学院,河南新乡453007 [2]河南师范大学新联学院,河南新乡453007

出　　处：《洛阳理工学院学报（自然科学版）》2022年第3期58-61,75,共5页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

摘　　要：基于提升小波变换(LWT)和高级加密标准(AES)数据加密技术提出一个新的灰度水印技术方案。LWT计算速度快,运算效率高,是一种整数到整数的变换。灰度水印图像AES数据加密,数据更安全,为水印技术又多了一层保护。将原始图像进行LWT变换,取出LL子带;然后将灰度水印图像AES数据加密;提取LL子带和水印图像的主值,通过修改算法将水印图像的主值嵌入到LL子带的主值中。水印的提取按照相逆的算法,实验仿真说明了该方法的有效性。A new watermarking method is proposed based on the theory of LWT and AES data encryption.The algorithm of LWT owns high speed and high efficiency for processing signals,and LWT is a transform from integer to integer.The gray watermark image,encrypted with AES algorithm,with secure data,provides more protection for watermarking.LWT is applied to the original image and the LL sub-bands is obtained.Then the gray watermark image is encrypted using AES algorithm.The principal components of the LL sub-bands and watermark image are abstracted,and the principal components of watermark image are embedded in those of the LL sub-bands through adapting algorithm.The watermark is extracted in inverse way.The simulation results show that the proposed method is effective.

关 键 词：提升小波变换 AES算法 奇异值分解 

分 类 号：TP317.4[自动化与计算机技术—计算机软件与理论]