| 结合多混沌映射和输出反馈的图像加密算法 |
| |
| 引用本文： | 朱从旭, 黄大足, 郭迎. 结合多混沌映射和输出反馈的图像加密算法[J]. 武汉大学学报 ( 信息科学版), 2010, 35(5): 528-531. |
| |
| 作者姓名： | 朱从旭 黄大足 郭迎 |
| |
| 作者单位： | 1中南大学信息科学与工程学院,长沙市麓山南路932号410083;2湖南财经高等专科学校信息管理系,长沙市枫林二路139号,410205 |
| |
| 基金项目： | 国家自然科学基金资助项目(60902044); 中南大学首批研究生培养扶植基金资助项目(71333000482) |
| |
| 摘 要： | 提出了一种结合多个Logistic混沌映射和逐段正弦混沌映射的图像加密算法。通过m个Logistic混沌映射的多次迭代,分别产生m个分段正弦混沌映射的初值和参数值,由m个分段正弦混沌映射迭代产生图像加密密钥序列,并引入密文输出反馈机制,对图像像素值逐点进行2轮异或加密。实验表明,该算法使密文对明文和密钥都充分敏感,加密图像像素值具有类随机均匀分布特性,相邻像素具有零相关特性,而且算法具有密钥空间大、加密速度快的优越性。
|
| 关 键 词： | 图像加密 Logistic混沌映射 正弦混沌映射 输出反馈 |
| 收稿时间： | 2010-03-15 |
| 修稿时间： | 2013-07-09 |
A New Image Encryption Algorithm Based on Multiple Chaotic Maps and Output-Feedback |
| |
| ZHU Congxu, HUANG Dazu, GUO Ying. A New Image Encryption Algorithm Based on Multiple Chaotic Maps and Output-Feedback[J]. Geomatics and Information Science of Wuhan University, 2010, 35(5): 528-531. |
| |
| Authors: | ZHU Congxu HUANG Dazu GUO Ying |
| |
| Affiliation: | 1School of Information Science and Engineering,Central South University,932 South Lushan Road,Changsha 410083,China;2Department of Information Management,Hunan College of Finance and Economics,139 Fenglin Road,Changsha 410205,China |
| |
| Abstract: | A new chaotic image encryption algorithm based on multi logistic maps(LMs) and piecewise sine chaotic maps(PSCMs) is proposed.The initial values and system parameters of the m PSCMs are generated by four LMs via iteration.By using the m-PSCMs chaotic secret key stream are generated.The image is encrypted two rounds by the chaotic secret key stream pixel by pixel and ciphertext output-feedback technology is introduced.The experimental results demonstrate that the extremely sensitive to the key and the plaint... |
| |
| Keywords: | image encryption Logistic chaotic maps sine chaotic maps output-feedback |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《武汉大学学报(信息科学版)》浏览原始摘要信息 |
|
点击此处可从《武汉大学学报(信息科学版)》下载全文 |
