Rijndael S盒代数性质研究  

The Study of the Algebra Properties for the Rijndael S-Box

作　　者：刘景伟[1] 韦宝典[1] 吕继强[1] 王新梅[1] 

机构地区：[1]西安电子科技大学计算机网络与信息安全教育部重点实验室,西安710071

出　　处：《计算机工程与应用》2003年第31期45-47,63,共4页Computer Engineering and Applications

基　　金：国家973重点基础研究发展规划项目(编号:G1999035803);"十五"国家密码发展基金

摘　　要：该文对Rijndael算法中为算法提供安全性的唯一非线性结构—S盒的代数性质进行了深入的研究,从S盒的七种重要代数性质考察了算法的安全性,并且采用插值法推导出了S盒的代数表达式,分析了S盒两种详细的代数结构,最后指出了算法中可能存在的安全隐患。The algebra properties of the S -box,which is the only nonlinear structure in Rijindael algorithm and accounts for the security of the algorithm,are analyzed in detail in this paper.The security of the algorithm is studied by investigating on seven important properties of the S -box.The algebraic expression of the S -box is derived by interpolation method.Detail algebraic constructions of the S-box are analyzed and the existence of the hidden trouble on the algorithm is also put forward.

关 键 词：RIJNDAEL算法 S盒 线性密码分析 差分密码分析 多输出布尔函数 

分 类 号：TN918.4[电子电信—通信与信息系统]