Investigations on nonlinear streamcipher systems: construction and evaluation methods
Cees J. A. Jansen · Research Repository (Delft University of Technology) · 1989
Soon after I got involved in cryptology in 1980,1 learned that there was a big gap between the theory and the practical application of cipher systems.In particular, I found that there existed little theory on the nonlinear aspects of streamcipher systems, whereas after reading Golomb's book my interest was definitely raised.Through a detour, caused by the many interesting and relevant problems of key management, I arrived at the topics described in this thesis.Several results described here were presented at various symposia.The results of Section 2.2 were presented at Eurocrypt 86, Linköping, Sweden, and Section 2.3 was presented at Eurocrypt 87, Amsterdam, The Nether lands.The results of Chapter 5 were presented at the 1988 Benelux Sympo sium on Information Theory, Mierlo, The Netherlands and at the 1988 IEEE International Symposium on Information Theory, Kobe, Japan.Chapter 5 and Section 6.2 are co-authored by Ir.W.G. Franx.I want to express my deep gratitude to Prof. D.E.Boekee,