| 一种基于混沌序列的图像加密算法 |
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| 引用本文： | 易开祥,孙鑫,石教英.一种基于混沌序列的图像加密算法[J].计算机辅助设计与图形学学报,2000,12(9):672-676. |
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| 作者姓名： | 易开祥 孙鑫 石教英 |
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| 作者单位： | [1]浙江大学CAD＆CG国家重点实验室 [2]浙江大学工业控制技术研究所 |
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| 基金项目： | 国家自然科学基金!(6 9773 0 2 0和 6 982 3 0 0 3 ) |
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| 摘 要： | 混沌序列具有容易生成，对初始条件敏感，以及具有白噪声的统计特性等特点，混沌序列的离散映射也具有与其相似的特性，文中讨论了一种基于混沌序列的图像加密算法，首先，由密钥生成实数值混沌序列，混合将其通过离散映射生成相应的符号矩阵和置换矩阵，最后，在变换域利用其进行数字图像加密，实验证产了该算法的有效性，并得到了较好的加密效果。
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| 关 键 词： | 混沌序列 排列变换 图像加密算法 多媒体通信 |
An Image Encryption Algorithm Based on Chaotic Sequences |
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| YI Kai Xiang,SUN Xin,SHI Jiao Ying.An Image Encryption Algorithm Based on Chaotic Sequences[J].Journal of Computer-Aided Design & Computer Graphics,2000,12(9):672-676. |
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| Authors: | YI Kai Xiang SUN Xin SHI Jiao Ying |
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| Affiliation: | YI Kai Xiang 1) SUN Xin 2) SHI Jiao Ying 1) 1) |
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| Abstract: | An image encryption algorithm based on chaotic sequences is presented to make use of its good properties such as ease of generation, sensitive dependence on their initial condition and noise like statistic characteristics. First, the real number value chaotic sequences using the key value is generated. Then it is dispersed into symbol matrix and transformation matrix. Finally the image is encrypted using them in DCT domain. Preliminary results are satisfactory. |
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| Keywords: | chaos chaos sequences scrambling transformation encryption discrete cosine transformation |
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