Author/Authors :
ABADI، M. نويسنده TARBIAT MODARES UNIVERSITY, P.O.BOX 14115-143, TEHRAN, IRAN , , SADEGHIYAN، B. نويسنده AMIRKABIR UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN , , GHAEMI، A. نويسنده FERDOWSI UNIVERSITY OF MASHHAD, MASHHAD, IRAN , , ALIPOUR، M. A. نويسنده UNIVERSITY OF KASHAN, KASHAN, IRAN ,
Abstract :
In this paper, we propose a genetic algorithm, called GenSPN,
for finding highly probable differential characteristics of substitutionpermutation
networks (SPNs). A special fitness function and a heuristic
mutation operator have been used to improve the overall performance
of the algorithm. We report our results of applying GenSPN for finding
highly probable differential characteristics of Serpent block cipher. A
comparison of the resultant characteristics with the previously published
works shows that GenSPN can find differential characteristics of higher
probabilities.
