摘要
本文提出一种基于元胞自动机分治策略的图像加密算法,该方法首先利用分治策略把一幅图像分解成若干幅小的图像,然后对每幅小的图像建立不同的元胞自动机模型,根据元胞自动机规则分别进行加密,最后把它们合并就为原图像的加密图像。实验证明,该方法既可以增加密钥空间长度提高安全性,同时可以简化算法的复杂性,提高算法效率。
This paper presents a image encryption algorithm by cellular automata-based partition strategy. In this method, the use of partition strategy to an image is decomposed into a number of pieces of small images, then for each piece of the small images to establish a different cellular automaton model. According to the rules of cellular automata encrypted separately for each images. Finally, consolidated them into encrypted image of the original image. The experimental results show that the image encryption approach combined with the cellular automata-based partition strategy enhanced security and more large key space, improve the efficiency of the algorithm.
出处
《微计算机信息》
2010年第26期34-36,共3页
Control & Automation
关键词
元胞自动机
分治策略
图像加密
图像处理
cellular Automata
partition Strategy
image encryption
image processing
作者简介
张水平(1965-),男,江西南昌人,汉族,江西理工大学副教授,主要研究方向:网络安全技术,人工智能在安全中的应用。通讯地址:(341000江西赣州江西理工大学信息中心)