| 一种基于二维Logistic混沌映射的VEA置乱加密算法设计 |
| |
| 引用本文： | 梁元,李建平,郭科.一种基于二维Logistic混沌映射的VEA置乱加密算法设计[J].计算机工程与科学,2012,34(5):13-17. |
| |
| 作者姓名： | 梁元 李建平 郭科 |
| |
| 作者单位： | 1. 成都电子科技大学计算机科学与工程学院,四川成都,610054
2. 成都理工大学管理科学学院,四川成都,610059 |
| |
| 基金项目： | 数学地质四川省高校重点实验室2009年度开放基金资助(SCSXDZ2009008) |
| |
| 摘 要： | 为解决视频信息的安全问题,本文提出了一种基于二维Logistic混沌映射的VEA置乱加密算法。先对视频数据中的I帧、P帧和B帧进行DCT转换,然后将DC、AC系数进行置乱,再利用二维Logistic混沌系统、产生的2组具有混沌特性的二进制流序列,对DC、AC系数进行两次混沌加密,得到加密的视频数据。通过使用混沌密钥进行二次加密的视频数据,具有安全性高、抵抗攻击能力强等特点。
|
| 关 键 词： | 图像处理 混沌密钥 VEA加密 Logistic混沌系统 置乱 |
A Design of the VEA Scrambling Encryption Algorithm Based on Two-Dimensional Logistic Chaos Mapping |
| |
| LIANG Yuan
,
LI Jian-ping
,
GUO Ke.A Design of the VEA Scrambling Encryption Algorithm Based on Two-Dimensional Logistic Chaos Mapping[J].Computer Engineering & Science,2012,34(5):13-17. |
| |
| Authors: | LIANG Yuan LI Jian-ping GUO Ke |
| |
| Affiliation: | 1.School of Computer Science and Engineering,University of Electronics Science and Technology of Chengdu,Chengdu 610054;2.School of Management Science,Chengdu University of Technology,Chengdu 610059,China) |
| |
| Abstract: | A VEA scrambling encryption algorithm design based on two-dimensional Logistic chaos mapping is put forward to deal with the security problem of video information.Firstly we transform the I frame,P frame and B frame of video data by DCT(Discrete Cosine Transform),and scramble the DC and AC coefficients,and then use the two dimensional chaotic sequences of the Logistic chaotic system to encrypt the DC and AC coeficients twice,and then we obtain the encryption data.The video data which are encrypted twice by the chaos key have the characteristics of high security,strong attack-resistance and so on. |
| |
| Keywords: | image processing chaos encryption VEA encryption Logistic chaotic system scrambling |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程与科学》浏览原始摘要信息 |
|
点击此处可从《计算机工程与科学》下载全文 |
|
