| 对一种抗统计分析的LSB隐写方案的攻击 |
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| 引用本文： | 刘光杰,王金伟,戴跃伟,王执铨.对一种抗统计分析的LSB隐写方案的攻击[J].信息与控制,2005,34(3):312-317. |
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| 作者姓名： | 刘光杰 王金伟 戴跃伟 王执铨 |
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| 作者单位： | 南京理工大学自动化系,江苏,南京,210094 |
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| 基金项目： | 国家自然科学基金资助项目(60374066)，江苏省自然科学基金资助项目(BK2001054) |
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| 摘 要： | 针对张新鹏等人提出的抗统计分析的LSB隐写方案对图像差分直方图的影响，本文提出了一种基于差分直方图分析的隐写分析方案．该方案使用隐写前后图像差分直方图转移矩阵结合对差分直方图广义拉普拉斯分布的拟合偏差实现对嵌入数据长度的估计．实验证明该算法具有较好的估计精度．
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| 关 键 词： | 隐写分析 LSB隐写 差分直方图分析 直方图转移矩阵 拟合偏差 |
| 文章编号： | 1002-0411(2005)03-0312-06 |
Attack on an LSB Steganography Scheme Against Statistical Analysis |
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| LIU Guang-jie,WANG Jin-wei,DAI Yue-wei,WANG Zhi-quan.Attack on an LSB Steganography Scheme Against Statistical Analysis[J].Information and Control,2005,34(3):312-317. |
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| Authors: | LIU Guang-jie WANG Jin-wei DAI Yue-wei WANG Zhi-quan |
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| Abstract: | In this paper, a steganalytical scheme based on i ma ge difference histogram analysis is proposed on the basis of the effect on image difference histogram caused by the LSB steganography scheme against statistical analysis proposed by Zhang Xin-peng et al. The scheme uses the histogram trans fer matrix between the cover image and stego image, combining fitness bias cause d by using generalized Laplacian distribution to fit the difference histogram, t o estimate the embedded message length. Experiments show that our method has p referable accuracy. |
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| Keywords: | steganalysis LSB steganography difference histogram analysis histogram transfer matrix fitness bias |
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