平衡旋转对称布尔函数的计数
收稿日期: 2011-02-16
修回日期: 2011-09-06
网络出版日期: 2012-01-30
基金资助
国家自然科学基金(No.61070215, No.61103191)资助
Enumeration of Balanced Rotation-Symmetric Boolean Functions
Received date: 2011-02-16
Revised date: 2011-09-06
Online published: 2012-01-30
张鹏1, 付绍静2, 屈龙江1, 李超1;2 . 平衡旋转对称布尔函数的计数[J]. 应用科学学报, 2012 , 30(1) : 45 -51 . DOI: 10.3969/j.issn.0255-8297.2012.01.008
Rotation-symmetric Boolean functions (RSBF) that are invariant under circular translation of
indices have been used as components of different cryptosystems. This paper investigates enumeration of the
balanced RSBFs. Based on some improvements and analysis of the solutions of the correlative equation system,
the lower bound on the number of pr-variable balanced RSBFs is improved, where p is a prime. For a general
odd number n, a lower bound on the number of n-variable balanced RSBFs is provided.
Key words: cryptography; Boolean function; rotation-symmetry; balance; enumeration
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