The Algebraic Normal Form of Addition Mod 2n
In 1, compact formulas are derived to represent the Algebraic Normal Form (ANF) of f(X + Y mod2n) and f(X*Y mod 2n) from the ANF of f, where f is a Boolean function with n variables and Y is a constant. In this paper, based on a property of the carry bits of addition mod 2n, we give a method to compute the ANFs of the n component Boolean functions of X+Y mod2n, with time complexity O(2n), where both X and Y are variables. The total time complexity O(2n) is much lower than O(2n 22n), which is the time complexity of the computation of the ANF of the highest bit of X + Y mod 2n by the classical algorithm 15 of computation of ANF of a Boolean function from the truth table.
ANF Algebraic Nor& Form addition mod2n
Peng Changyong Zhu Yuefei
Department of Network Engineering, Zhengzhou Information Science & Technology Institute,Zhengzhou, China.
国际会议
成都
英文
189-190
2010-12-17(万方平台首次上网日期,不代表论文的发表时间)