Journal on Communications ›› 2014, Vol. 35 ›› Issue (Z2): 179-183.doi: 10.3969/j.issn.1000-436x.2014.z2.024

• Papers • Previous Articles     Next Articles

Extended algebraic immunity of symmetric Boolean function

Gao-fei WU1,Xue-feng LIU1,Ye TIAN1,Yu-qing ZHANG1,2   

  1. 1 State Key Laboratory of Integrated Services Networks,Xidian University,Xi’an 710071,China
    2 National Computer Network Intrusion Protection Center,University of Chinese Academy of Sciences,Beijing 101408,China
  • Online:2014-11-25 Published:2017-06-19
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China

Abstract:

Boolean functions with optimal algebraic immunity play an important role in stream ciphers.Based on the univariate polynomial representation of Boolean functions,a construction of Boolean functions with maximum extended algebraic immunity (EAI) is proposed,some previous results are special cases of our construction.The EAI of symmetric Boolean functions which have maximum algebraic immunity (AI) are analyzed by using the properties of symmetric Boolean functions.The result shows that there are only 2 ⌊ lb(n/2) ⌋+2 n-variable (n even) symmetric Boolean functions achieve maximum EAI.

Key words: cryptography, Boolean functions, symmetric Boolean functions, algebraic immunity; annihilators, extended algebraic immunity

No Suggested Reading articles found!