收稿日期: 2015-01-05
修回日期: 2015-04-10
网络出版日期: 2015-11-15
基金资助
Supported by the National Natural Science Foundation of China (11271363)
The cardinalities of some certain Hamming constraint sets
Received date: 2015-01-05
Revised date: 2015-04-10
Online published: 2015-11-15
Supported by
Supported by the National Natural Science Foundation of China (11271363)
宋佳 , 陈玉福 . Hamming约束集的计数问题[J]. 中国科学院大学学报, 2015 , 32(6) : 721 -727 . DOI: 10.7523/j.issn.2095-6134.2015.06.001
It is difficult to find Boolean functions used in stream ciphers that can meet all the necessary performance criteria. Recently, two classes of Boolean functions with many good cryptographic properties have been proposed by Tu and Deng based on correctness of a combinatorial conjecture about binary strings distribution (we call it Hamming constraint set). Tu-Deng conjecture has attracted much attention from cryptographers. In this paper we give a new method to obtain the explicit formulas for the cardinalities of some certain Hamming constraint sets, which partially proves Tu-Deng conjecture.
Key words: Boolean function; Tu-Deng conjecture; Hamming weight
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