| 一种基于公钥认证可恢复的半脆弱水印算法 |
| |
| 引用本文： | 薛锋,汪定,王立萍. 一种基于公钥认证可恢复的半脆弱水印算法[J]. 计算机安全, 2011, 0(4): 25-28 |
| |
| 作者姓名： | 薛锋 汪定 王立萍 |
| |
| 作者单位： | 解放军汽车管理学院训练部; |
| |
| 摘 要： | 给出了一种基于公钥认证可恢复的半脆弱性水印新算法:首先对原始图像进行信息提取,得到水印图像;然后对原始图像和水印图像分块,并将经公钥加密后的各原始图像块的Hash值填充到相应水印图像块的最低位;接着对水印块进行置乱和嵌入.在图像检测时,能够对图像的篡改嚣域进行精确的检测与定位,并有效恢复出篡改区域图像.实验结果表明了算...
|
| 关 键 词： | 半脆弱水印 公钥认证 Hash函数 恢复 |
A Resumable Semi-fragile Watermarking Algorithm based on Public-Key Authentication |
| |
| XUE Feng,WANG Ding,WANG Li-ping. A Resumable Semi-fragile Watermarking Algorithm based on Public-Key Authentication[J]. Network & Computer Security, 2011, 0(4): 25-28 |
| |
| Authors: | XUE Feng WANG Ding WANG Li-ping |
| |
| Affiliation: | XUE Feng,WANG Ding,WANG Li-ping(Education Technology Center of Automobile Management Institute of PLA,Bengbu,Anhui 233011,China) |
| |
| Abstract: | A resumable semi-fragile watermarking algorithm based on public-key authentication was proposed.Firstly,each pixel of the original image was extracted,then the extracted image comes to be the watermarking image.In the following,the original image and the watermarking image was blocked,and the public-key encrypted Hash value of each block of the original image is put into the lowest bit of the corresponding pixel of the corresponding watermarking image block.After the watermarking image blocks were scrambled... |
| |
| Keywords: | semi-fragile watermarking public-key authentication Hash function rebuild |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
