Title: On the (Im)Possibility of Practical and Secure Nonlinear Filters and Combiners
Authors: Lano, ABJ ×
Lano, Joseph #
Issue Date: 2006
Publisher: Springer
Series Title: Lecture Notes in Computer Science vol:3897 pages:159-174
Conference: 12th International Workshop on Selected Areas in Cryptography location:Kingston, CANADA date:August 11-12, 2005
Abstract: A vast amount of literature on stream ciphers is directed to the cryptanalysis of LFSR-based filters and combiners, resulting in various cryptanalytic attacks. In this paper, we present a unified framework for the security of a design against these attacks based on the properties of the LFSR(s) and the Boolean function used. It is explained why building nonlinear filters seems more practical than building nonlinear combiners. We also investigate concrete building blocks that offer a good trade-off in their resistance against these various attacks, and can at the same time be used to build a low-cost synchronous stream cipher for hardware applications.
ISSN: 0302-9743
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - STADIUS, Stadius Centre for Dynamical Systems, Signal Processing and Data Analytics
× corresponding author
# (joint) last author

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