| 一种基于混沌序列的数字图像加密算法 |
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| 引用本文： | 李兴华,高飞. 一种基于混沌序列的数字图像加密算法[J]. 电讯技术, 2006, 46(1): 99-104 |
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| 作者姓名： | 李兴华 高飞 |
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| 作者单位： | 北京理工大学,信息科学技术学院,电子工程系,北京,100081;北京理工大学,信息科学技术学院,电子工程系,北京,100081 |
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| 摘 要： | 对Logistic映射混沌序列生成方法作了一些改进，改进后生成的序列不仅克服了一维混沌序列的短周期行为，而且统计性能有了一定程度的改善。提出了一种基于此混沌序列的JPEG格式数字图像加密算法，通过在图像压缩的同时执行加密运算，使密图具有良好的压缩效率，试验表明加密效果是令人掩意的。
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| 关 键 词： | 混沌序列 JPEG 图像压缩 编码 加密 |
| 文章编号： | 1001-893X（2006）01-0099-06 |
| 收稿时间： | 2004-12-08 |
| 修稿时间： | 2004-12-082005-06-12 |
A Digital Image Encryption Algorithm Based on Chaotic Sequences |
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| LI Xing-hu,GAO Fei. A Digital Image Encryption Algorithm Based on Chaotic Sequences[J]. Telecommunication Engineering, 2006, 46(1): 99-104 |
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| Authors: | LI Xing-hu GAO Fei |
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| Affiliation: | Department of Electronic Engineering,School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Some improvement is presented for producing the chaotic sequence based on Logistic mapping. The method overcomes the disadvantage of short period which usually appears with one dimension chaos system. Further more, the new chaotic sequence takes on better random statistical property. A JPEG digital image encryption algorithm is proposed based on chaotic sequences above,which is implemented during image compression, Encryption image according to this method takes on quite compression efficiency. Experimental results show that encryption effect is satisfactory. |
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| Keywords: | JPEG |
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