| 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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