Authors: Camion, Paul
Mihaljević, Miodrag J. 
Imai, Hideki
Title: On employment of LFSRs over GF(q) in certain stream ciphers
Journal: IEEE International Symposium on Information Theory - Proceedings
First page: 210
Issue Date: 1-Jan-2002
ISSN: 2157-8095
DOI: 10.1109/ISIT.2002.1023482
Abstract: 
The possibility for malicious selection of LFSRs feedback polynomials in order to install a trap-door for the cryptanalysis was investigated. A design criteria for employment of LFSRs in nonlinear combination keystream generators for stream ciphers was proposed. The criterion required checking of the pattern distribution in a sequence of successive powers of the LFSR state transition matrix.
Keywords: Algorithms | Computational complexity | Correlation methods | Matrix algebra | Nonlinear filtering | Polynomials
Publisher: IEEE

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