| 一种新的数字图像置乱方案* |
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| 引用本文： | 赵学峰.一种新的数字图像置乱方案*[J].计算机应用研究,2004,21(6):112-113. |
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| 作者姓名： | 赵学峰 |
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| 作者单位： | 西北师范大学,数学与信息科学学院,甘肃,兰州,730070 |
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| 基金项目： | 国家自然科学重点基金（40235053）资助项目 |
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| 摘 要： | 提出了一种新的数字图像置乱概念和模型，采用了矩阵的配对及移位操作技术。配对的选择方式和移位次数决定于离散Chebyshev映射系统生成的密钥混沌序列。混沌系统的特性使得该置乱方法具有随机性和变化的多样性。讨论了置乱算法的安全性问题并给出了实验结果。
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| 关 键 词： | 置乱变换 图像加密 混沌序列 |
| 文章编号： | 1001-3695(2004)06-0112-02 |
A New Scrambling Scheme of Digital Image |
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| ZHAO Xue-feng.A New Scrambling Scheme of Digital Image[J].Application Research of Computers,2004,21(6):112-113. |
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| Authors: | ZHAO Xue-feng |
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| Affiliation: | (College of Mathematics & Information Science,Northwest Normal University,Lanzhou Gansu 730070,China) |
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| Abstract: | A new scheme of scrambling digital image is proposed in this paper.Its concepts and models are described in detail.The scheme is based on matching pairs of the image matrix and shift operator.The discrete Chebyshev mapping is employed to generate secret key chaotic streams as scrambling parameters.With the properties of chaotic system,the proposed algorithm has the features of randomness as well as varieties for image scrambling.At last,the problem for security is discussed,and the test result is obtained efficiently. |
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| Keywords: | Scrambling Transformation Digital Image Encryption Chaotic Sequences |
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