摘要
为提高图像加密效果,可结合混沌理论、位平面分解理论以及灰度置乱理论,获得一种加密新方法,即先对置乱后的图像进行位平面分解,再针对不同位平面使用不同的混沌加密密钥进行加密。仿真分析显示,此加密方法简单有效,密钥空间巨大,加密效果明显,安全性高。
In order to improve the effect of image encryption,a new encryption method combined with image bit-plane distribution,chaos theory and gray scrambling theory is presented.That is to encrypt different bit-plane using different encode key after scramble the image.Simulation shows that this method is simple and effective,moreover,it has a lager encoding key space and a high security.
出处
《西安邮电学院学报》
2010年第5期83-86,共4页
Journal of Xi'an Institute of Posts and Telecommunications
基金
陕西省自然科学基金资助项目(N0.2009JM8004)
关键词
置乱
加密
混沌
substitution
encryption
chaos
