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IEICE TRANSACTIONS on Fundamentals

Characterizing Linear Structures of Boolean Functions from Arithmetic Walsh Transform

Qinglan ZHAO, Dong ZHENG, Xiangxue LI, Yinghui ZHANG, Xiaoli DONG

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Summary :

As a with-carry analog (based on modular arithmetic) of the usual Walsh-Hadamard transform (WHT), arithmetic Walsh transform (AWT) has been used to obtain analogs of some properties of Boolean functions which are important in the design and analysis of cryptosystems. The existence of nonzero linear structure of Boolean functions is an important criterion to measure the weakness of these functions in their cryptographic applications. In this paper, we find more analogs of linear structures of Boolean functions from AWT. For some classes of n-variable Boolean functions f, we find necessary and sufficient conditions for the existence of an invariant linear structure and a complementary linear structure 1n of f. We abstract out a sectionally linear relationship between AWT and WHT of n-variable balanced Boolean functions f with linear structure 1n. This result show that AWT can characterize cryptographic properties of these functions as long as WHT can. In addition, for a diagonal Boolean function f, a recent result by Carlet and Klapper says that the AWT of f can be expressed in terms of the AWT of a diagonal Boolean function of algebraic degree at most 3 in a larger number of variables. We provide for the result a complete and more modular proof which works for both even and odd weights (of the parameter c in the Corollary 19 by Carlet and Klapper (DCC 73(2): 299-318, 2014).

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E100-A No.9 pp.1965-1972
Publication Date
2017/09/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E100.A.1965
Type of Manuscript
PAPER
Category
Cryptography and Information Security

Authors

Qinglan ZHAO
  Shanghai Jiao Tong University,Xi'an University of Post and Telecommunications
Dong ZHENG
  Xi'an University of Post and Telecommunications
Xiangxue LI
  East China Normal University
Yinghui ZHANG
  Xi'an University of Post and Telecommunications
Xiaoli DONG
  Xi'an University of Post and Telecommunications

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