A Novel Bit-level Image Encryption Method Based on Chaotic Map and Dynamic Grouping

被引：2
|
作者：
张国基 [1 ]
沈彦 [1 ]
机构：
[1] Department of Sciences,South China University of Technology
来源：
CommunicationsinTheoreticalPhysics | 2012年 / 58卷 / 10期
关键词：
image encryption; permutation-diffusion; dynamic grouping bit-level;
D O I：
暂无
中图分类号：
TP309.7 [加密与解密]; O415.5 [混沌理论];
学科分类号：
070201 ; 081201 ; 0839 ; 1402 ;
摘要：
In this paper,a novel bit-level image encryption method based on dynamic grouping is proposed.In the proposed method,the plain-image is divided into several groups randomly,then permutation-diffusion process on bit level is carried out.The keystream generated by logistic map is related to the plain-image,which confuses the relationship between the plain-image and the cipher-image.The computer simulation results of statistical analysis,information entropy analysis and sensitivity analysis show that the proposed encryption method is secure and reliable enough to be used for communication application.
引用
收藏
页码：520 / 524
页数：5
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