国防科技大学学报2012，Vol.34Issue(2)：42-45,4.
模2n加与模2加相对结合律相容程度的分析
Analysis on the consistent degree of addition modulo 2n with XOR for associative law
摘要
Abstract
Addition modulo 2" and XOR addition are two code links which are often used in cipher algorithms, the consistent degree of the two links means the difference degree when the computing sequence is changed in the equation including the two links. The difference function between addition modulo 2" and XOR addition corresponding to associative law is studied. When the computing sequence of [(x⊕y) + z] mod 2" is changed, the computation formulae of the probability distribution of the difference function ξ (χ,y, z) =[(x⊕y) + nz]⊕[x(⊕)(y + az) ] is given, and the square sum of the probability is given too. The results presented are useful for some distinguishing attack.关键词
模2n加/异或加/相容程度/噪声函数/区分攻击Key words
addition modulo 2n / XOR addition/ consistent degree/ noise function/ distinguish attack分类
信息技术与安全科学引用本文复制引用
关杰,金晨辉,常亚勤..模2n加与模2加相对结合律相容程度的分析[J].国防科技大学学报,2012,34(2):42-45,4.基金项目
通信保密重点实验室基金资助项目(9140C110202110C1101) （9140C110202110C1101）
