Camellia S盒代数性质研究

Study of the Algebra Properties for the Camellia S-Box

文章对Camellia算法S盒的代数性质进行了研究,考察了S盒的7种代数特性,从本质上解释了算法的安全性,并且采用插值法推导出了Camellia S盒的代数表达式,最后简单指出了算法可能存在的安全隐患。

In this paper, we analyzed the algebra properties of the Camellia S-box in details. We studied the security of the algorithm by investigating on seven important properties of the S-box. The algebraic expression of the S-box is derived by interpolation method. At last, we gave a brief description of the hidden trouble on the algorithm.