摘要
Correlation-immunity is an important concept in cryptology. In ref. [1] Siegenthaler introduced the mathematical definition of correlation-immunity and used the correlation-immunity order of logic functions as a measure for cipher systems to defend against correlation attacks. In terms of Walsh transform, the correlation immunity of binary-valued logic functions, i.e. Boolean functions, was studied in ref. [2], and a
基金
Project supported by the National Natural Science Foundation
Doctoral Programme Foundation of Institutions of Higher Education
