On Statistical Properties of S-boxes in Block Ciphers  

作　　者：CHEN Hua WU Chuankun FENG Dengguo 

机构地区：[1]State Key Lab of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing 100080, China

出　　处：《Chinese Journal of Electronics》2005年第4期584-587,共4页电子学报（英文版）

基　　金：This work is supported by the Major State Basic Research Development Program of China （No.G1999035802） and the National Natural Science Foundation of China （No.90304007）.

摘　　要：S-boxes being core nonlinear components play a very important role in traditional block ciphers. Well-designed S-boxes will contribute to the security of a block cipher significantly, and security measurement of S-boxes has attracted much interest. Besides many measurements for S-boxes in block ciphers, this paper proposes a new measurement on the statistical property, namely bias test of S-boxes, and gives analysis of the S-boxes in Rijndael and Crypton using the new measurement. It shows that the S-box of Rijndael performs better than that of Crypton under the new measurement. Some relationships between the new measurement and algebraic properties have also been explored.

关 键 词：Block cipher S-BOX Bias test 

分 类 号：TP309[自动化与计算机技术—计算机系统结构]