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Characterizations of the differential uniformity of vectorial functions by the Walsh transform
secret-key cryptography known APN functions
2017/6/6
For every positive integers nn, mm and every even positive integer δδ, we derive inequalities satisfied by the Walsh transforms of all vectorial (n,m)(n,m)-functions and prove that the case of equalit...
Characterizations of the Degraded Boolean Function and Cryptanalysis of the SAFER Family
Cryptography Block cipher Degradation property Zero- correlation linear cryptanalysis
2016/1/27
This paper investigates the degradation properties of Boolean functions from the aspects of the distributions of di erences and linear masks, and shows two characterizations of the degraded Boolean fu...