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布尔函数非线性度界的问题

郑连清1;张串绒1,2;董庆宽2;傅晓彤2;肖国镇2   

  1. (1. 空军工程大学 电讯工程学院,陕西 西安 710077;
    2. 西安电子科技大学 信息保密研究所,陕西 西安 710071)

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2003-04-20 发布日期:2003-04-20

Study of nonlinearity bounds of Boolean functions

ZHENG Lian-qing1;ZHANG Chuan-rong1,2;DONG Qing-kuan2;FU Xiao-tong2;XIAO Guo-zhen2

  

  1. (1. Telecommunications Engineering Inst., A.E.U., Xi'an 710077, China;
    2. Research Inst. of Information Security, Xidian Univ., Xi’an 710071, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-04-20 Published:2003-04-20

摘要: 对目前有关布尔函数非线性度的界已有结果作了较全面的比较和分析,指出关于非线性度的界尚需解决的问题. 尤其对满足平衡性、相关免疫性和同时满足平衡相关免疫性函数的非线性度的界分别进行了研究,利用非线性度和相关免疫阶之间的关系,给出相关免疫函数非线性度的一种新的上界.

关键词: 密码学, 布尔函数, 非线性度, 平衡性, 相关免疫性

Abstract: The previous results about nonlinearity bounds of Boolean functions are compared and analyzed completely. For that, some problems which need research are pointed out. Especially, the nonlinearity bounds of functions with balancedness, with correlation-immunity, or with balanced correlation-immunity are discussed respectively. Using the relationship between nonlinearity and the order of correlation-immune, one upper bound of nonlinearity of correlation-immune functions is obtained.

Key words: cryptography, Boolean functions, nonlinearity, balancedness, correlation-immunity

中图分类号: 

  • TN918.1