K进制面包师变换及其在数字图像加密中的应用

为了对数字图像进行加密,Masaki Miyam等把经典面包师变换推广到截断面包师变换情形;邹建成等给出了三进制下的截断面包师变换的数字图像信息加密方法.本文对这些方法进行了推广,给出了K进制面包师变换的定义,并讨论了其在数字图像加密中的应用.特别是,对基于面包师变换的数字图像加密算法的鲁棒性进行了分析.实验结果表明,这种加密方法能在一定程度上抵抗一些通常的图像攻击,如裁减、压缩和高斯噪音等攻击.

K-th System Baker Transformation and Its Application in Digital Image Encryption

For the purpose of digital image encryption, Masaki Miyam et al extend the classical baker transformation to its truncated version. Parallelly, Zou Jiangcheng and others present baker transformation with triad system. In this paper, the authors extend the baker transformation to K-th system and give the digital image encryption algorithm thereon. Experiments show that this algorithm can with stand some common image attacks, such as cutting, compression and Gaussian noises, etc.