Title :
A new criterion for the design of 8×8 S-boxes in private-key ciphers
Author :
Xu, Jianhong ; Heys, Howard M.
Author_Institution :
Dept. of Electr. Eng., Memorial Univ. of Newfoundland, St. John´´s, Nfld., Canada
Abstract :
We examine the security of the class of substitution permutation private key block ciphers with respect to linear and differential cryptanalysis. A new S box nonlinearity criterion is proposed and it is shown that S boxes satisfying this criterion and having good diffusion improve remarkably the ability of an SPN to resist linear cryptanalysis and differential cryptanalysis
Keywords :
combinatorial mathematics; cryptography; S box nonlinearity criterion; SPN; differential cryptanalysis; linear cryptanalysis; security; substitution permutation encryption network; substitution permutation private key block ciphers; Cryptography; Linear approximation; Resists; Security; Vectors;
Conference_Titel :
Electrical and Computer Engineering, 1997. Engineering Innovation: Voyage of Discovery. IEEE 1997 Canadian Conference on
Conference_Location :
St. Johns, Nfld.
Print_ISBN :
0-7803-3716-6
DOI :
10.1109/CCECE.1997.614854
