摘要
研究在有限域上构造MDS方阵的一些方法,这类矩阵作为扩散映射用于构建块加密算法和检验函数.给出了若干类4阶循环MDS矩阵以及具有最多单位元的4阶MDS矩阵.
The paper examines some approaches to construct the square maxi- mum distance separable (MDS) matrices over a finite field. This class of matrices is widely used as diffuse maps when building block type cryptographic algorithms and hash functions. Some classes of circulant MDS matrices of size 4 x 4 and matrices with the maximum number of units are presented.
出处
《应用数学与计算数学学报》
2017年第2期143-152,共10页
Communication on Applied Mathematics and Computation
关键词
MDS矩阵
MDS编码
数据保护算法
maximum distance separable (MDS) matrix
MDS code
data pro-tection algorithms