摘要
鉴于传统图像加密技术和低维混沌加密技术各有其局限性,该文中提出了一种利用Lorenz系统产生混沌序列,并结合混沌镜像加密方法的三维超混沌图像加密方法。该方案对初始密钥敏感强,对混沌序列的预处理时间短,是一种具有较高的安全性,加密效率高,且易于实现的图像加密算法。
In view of the fact that the traditional image encryption technology and the low dimension chaos encryption technology respectively had its limitation, in this paper we discussed a new image encryption algorithm based - on the Lorenz system using chaotic mirror - like image encryption algorithm. For its sensitive dependence on the initial condition and the generation of chaos sequence in short time, the algorithm provides good security, the high encryption efficiency. Experimental results are satisfactory.
出处
《微处理机》
2007年第3期49-52,共4页
Microprocessors
基金
国家自然科学基金资助项目(60271019)
重庆自然科学基金资助项目(20020611007)
关键词
混沌系统
图像加密
LORENZ系统
镜像变换
Chaos system
Image encryption
Lorenz system
Mirror - like transformation
