[1]吴家新[],蒋国平[]. 基于交叉分段和并行扩散的混沌图像加密算法[J].计算机技术与发展,2014,24(12):133-137.
　WU Jia-xin[],JIANG Guo-ping[]. Chaotic Image Encryption Algorithm Based on Cross Subsection and Parallel Diffusion[J].,2014,24(12):133-137.
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 基于交叉分段和并行扩散的混沌图像加密算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
24
期数:
2014年12期
页码:
133-137
栏目:
安全与防范
出版日期:
2014-12-10

文章信息/Info

Title:
 Chaotic Image Encryption Algorithm Based on Cross Subsection and Parallel Diffusion
文章编号:
1673-629X（2014)12-0133-05
作者:
 吴家新[1]; 蒋国平[2]
 1.南京邮电大学 计算机学院；2.南京邮电大学 自动化学院
Author(s):
 WU Jia-xin[1]; JIANG Guo-ping[2]
关键词:
 ; 混沌; 图像加密; 交叉分段; 并行扩散; Logistic
Keywords:
 ; chaos; image encryption; cross subsection; parallel diffusion; Logistic
分类号:
TP309.7
文献标志码:
A
摘要:
 结合Logistic混沌系统,提出一种新的基于交叉分段和并行扩散的混沌图像加密算法（Cross Subsection and Parallel Diffusion,CSPD）。算法将明文交叉分成两段,降低明文段相邻像素点之间的相关性；每段密文之间形成两轮的并行扩散,提高算法对明文图像和密钥的敏感性；采用动态的密钥流生成规则,使得加密所需的密钥流与明文密切相关。实验结果和安全性分析表明：基于交叉分段和并行扩散的混沌图像加密算法具有密钥空间大,统计特性分布均匀,加密系统敏感性高和算法时间复杂度低等特点。
Abstract:
 Combined with the Logistic chaotic system,a novel algorithm is proposed based on cross subsection and parallel diffusion.The algorithm divides the plaintext into two segments to reduce the correlation between adjacent pixels of the plaintext.Each cipher text forms two rounds of parallel diffusion,which improves the sensitivity of algorithm for plaintext and key.Moreover,the algorithm adopts dynam-ic key generation rules,which makes the keystreams closely related to the plaintext.Experimental results and security analysis show that the chaotic image encryption algorithm based on cross subsection and parallel diffusion has a large key space,uniform distribution of the statistical characteristics,high sensitivity of the encryption system,and low time complexity etc.

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更新日期/Last Update: 2015-04-15