| 一种新的抗剪切的数字图像加密算法 |
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| 引用本文： | 成亚萍,吕巍,张太忠.一种新的抗剪切的数字图像加密算法[J].计算机工程与应用,2008,44(27):130-131. |
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| 作者姓名： | 成亚萍 吕巍 张太忠 |
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| 作者单位： | 1. 南京信息工程大学,计算机与软件学院,南京,210044
2. 南京信息工程大学,数理学院,南京,210044 |
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| 基金项目： | 江苏省高校自然科学基金 |
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| 摘 要： | 提出一种将图像的重要信息嵌入自身,再进行加密的算法。该算法将图像8×8块的重要信息嵌入到由Lorenz混沌系统决定的另一图像块中,再对嵌入自身信息后的图像采用Lorenz混沌系统进行像素加密。通过对实验结果分析,证明该算法具有较好的安全性和较强的抗剪切攻击能力。
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| 关 键 词： | 图像加密 混沌系统 自嵌入 剪切攻击 |
| 收稿时间： | 2007-11-29 |
| 修稿时间： | 2008-2-25
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New digital image encryption algorithm protect from shearing attack |
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| CHENG Ya-ping,LV Wei,ZHANG Tai-zhong.New digital image encryption algorithm protect from shearing attack[J].Computer Engineering and Applications,2008,44(27):130-131. |
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| Authors: | CHENG Ya-ping LV Wei ZHANG Tai-zhong |
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| Affiliation: | 1.Computer and Software Institute，Nanjing University of Information Science and Technology，Nanjing 210044，China 2.School of Mathematics and Physics，Nanjing University of Information Science and Technology，Nanjing 210044，China |
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| Abstract: | An encryption algorithm based on self-embedding is proposed to protect from shearing attack to improve security of the encryption algorithms. The image pixels are encrypted by Lorenz chaotic sequences after the image is divided into 8×8 blocks and each block’s important image information is embed into another block located by Lorenz system. Simulation results show that the algorithm can not only improve security，but also effectively protect from shearing attack. |
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| Keywords: | image encryption chaotic system self-embedding shearing attack |
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