| 基于Logistic混沌序列的图像加密算法 |
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| 引用本文： | 张永红,康宝生.基于Logistic混沌序列的图像加密算法[J].宁夏大学学报(自然科学版),2009,30(1):22-24. |
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| 作者姓名： | 张永红 康宝生 |
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| 作者单位： | 1. 渭南师范学院,数学与信息科学系,陕西,渭南,714000
2. 西北大学,信息科学与技术学院,陕西,西安,710069 |
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| 基金项目： | 陕西省自然科学基金，陕西省教育厅科研基金，渭南师范学院项目 |
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| 摘 要： | 基于混沌序列给出了一种图像加密算法．由于Logistic映射具有初始条件敏感性、随机性、相关性等优良的密码学性能，加密过程借助Logistic产生实数值混沌序列，再通过离散映射关系，把图像自带信息与实数值混沌序列耦合生成参数序列，进而利用标准映射时图像进行置换操作．解密算法即为加密的逆过程．实验结果表明，算法简单易行，安全性好．
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| 关 键 词： | 数字图像 混沌序列 图像加密 迭代 置乱 |
Image Encryption Algorithm Based on Logistic Chaos Sequences |
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| Zhang Yonghong,Kang Baosheng.Image Encryption Algorithm Based on Logistic Chaos Sequences[J].Journal of Ningxia University(Natural Science Edition),2009,30(1):22-24. |
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| Authors: | Zhang Yonghong Kang Baosheng |
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| Institution: | 1.Department of Mathematics and Information Science;Weinan Teacher's College;Weinan 714000;China;2.School of Information Science and Technology;Northwest University;Xi'an 710069;China |
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| Abstract: | An algorithm of digital image encryption is presented.This computing method harnesses the randomicity and the sensitivity of the original value of the Logistic chaotic sequence,to generate the real value sequence,and then,create the parameter sequences through the discrete mapping.The decrypting process is just the reverse of the encrypting process.The numerical experimentations show that the hiding algorithm is efficient and safety. |
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| Keywords: | digital image chaos sequence image encryption iterative scrambling |
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