Title :
Linear approximation of injective s-boxes
Author :
Youssef, A. ; Tavares, S. ; Mister, S. ; Adams, C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, Ont., Canada
fDate :
12/7/1995 12:00:00 AM
Abstract :
Nonlinearity is a crucial requirement for the substitution boxes in secure block ciphers. The authors derive an estimate for the expected nonlinearity of a randomly selected injective substitution box
Keywords :
approximation theory; cryptography; block ciphers; injective s-boxes; linear approximation; nonlinearity; substitution boxes;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19951466
