一种新的图像自适应并行加密算法  

A New Self-adaptive Parallel Image Encryption Algorithm

作　　者：刘祝华[1] 袁文[1] 

机构地区：[1]江西师范大学物理与通信电子学院,江西南昌330022

出　　处：《微电子学与计算机》2015年第1期68-71,75,共5页Microelectronics & Computer

基　　金：国家自然科学基金项目(11264016);江西省教育厅科研基金项目(GJJ12172);江西师范大学科研基金项目(4554)

摘　　要：提出了一种新的图像自适应并行加密算法.该算法根据奇偶加密轮次对图像进行水平或垂直分组,再对分组进行子块划分,并使用相邻块像素扰动混沌映射,同时设计了新的分组扩散方法,并使用S盒完成像素非线性替代.实验结果表明,新算法具有安全、简单、高效的特点,适合并行实现.A new self-adaptive parallel image encryption algorithm is proposed.In the new algorithm,image is divided into horizontal or vertical groups according to encryption rounds,each group is divided into two sub-blocks,chaotic mapping of each sub-block is disturbed by adjacent sub-block pixels,a new pixel diffusion method is designed,and pixels are replaced by using S box.The experiments show that the new algorithm has the advantages of safety,simple and efficient,which is suitable for parallel implementation.

关 键 词：图像加密 自适应 并行加密 密码学 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]