| 基于二维混沌系统的数字图像加密算法 |
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| 引用本文： | 叶瑞松,黄慧青.基于二维混沌系统的数字图像加密算法[J].汕头大学学报(自然科学版),2009,24(1):56-61. |
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| 作者姓名： | 叶瑞松 黄慧青 |
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| 作者单位： | 汕头大学数学系,广东,汕头,515063 |
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| 摘 要： | 提出一个新的二维离散混沌系统,用来产生两对不同的具有很好伪随机性的混沌序列,利用混沌序列优良的伪随机性对一个与加密图像同样大小的魔方矩阵进行置乱,用置乱后的魔方矩阵对原图进行置乱,再用另一个混沌序列对其灰度值进行扩散,从而将明文图像充分地置乱并改变其统计特性.计算模拟试验的结果证实了该加密方法具有较好的加密性能和抗攻击的鲁棒性.
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| 关 键 词： | 二维混沌映射 图像加密 置乱 伪随机性 |
An Image Encryption Algorithm Based on a Novel 2D Chaotic Map |
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| YE Rui-song,HUANG Hui-qing.An Image Encryption Algorithm Based on a Novel 2D Chaotic Map[J].Journal of Shantou University(Natural Science Edition),2009,24(1):56-61. |
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| Authors: | YE Rui-song HUANG Hui-qing |
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| Institution: | (Department of Mathematics, Shantou University, Shantou 515063, Guangdong, China) |
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| Abstract: | A novel 2D discrete chaotic map is proposed. The proposed chaotie system is applied to generate two pseudorandom chaotic sequences. One magic matrix is scrambled which have the same size of the enerypt images. Another chaotic sequence is used to enerypt images by XOR approach. Simulation results verify that the eneryption algorithm has good eneryption effect and good robustness against attaching. |
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| Keywords: | 2D chaotic system image encryption scrambling pseudorandom |
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