Here we investigate autonomous automata with automaton states being binary n-dimensional vectors and transition function being a monocycle substitution. The complexity Tn of solving gamma generating equations system by formal coding method is estimated asuming the number of equations is not constrained. Bounds of Tn are obtained by estimating line complexity and the order monomial sets for the output functions sequence. It is stated that TL(2n-1) n < TL(2n) where TL(m) is a complexity of solving linear equations system of size m × m over field GF(2).
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- Title ON COMPLEXITY OF FORMAL CODING METHOD FOR ANALYSIS OF GENERATOR WITH MONOCYCLE SUBSTITUTIONAL TRANSITION FUNCTION
- Headline ON COMPLEXITY OF FORMAL CODING METHOD FOR ANALYSIS OF GENERATOR WITH MONOCYCLE SUBSTITUTIONAL TRANSITION FUNCTION
- Publesher
Tomsk State University
- Issue Prikladnaya Diskretnaya Matematika - Applied Discrete Mathematics 3(5)
- Date:
- DOI
Keywords
линейная оболочка , аннулирующий полином , моном Authors
References
Фомичёв В. М. Дискретная математика и криптология. М.: ДИАЛОГ-МИФИ, 2003. 400 с.
Schaumuller-Bichl. Cryptanalysis of the Data Encryption Standard by a method of formal coding // Cryptography, Proc. Burg Feuerstein 1982. LNCS. 1983. V. 149. P. 235-255.
Courtois N., Klimov A., Patarin J., Shamir A. Efficient Algorithms for Solving Overdefined Systems of Multivariate Polynomial Equations // LNCS. 2000. V. 1807. P. 392-407.
ON COMPLEXITY OF FORMAL CODING METHOD FOR ANALYSIS OF GENERATOR WITH MONOCYCLE SUBSTITUTIONAL TRANSITION FUNCTION | Prikladnaya Diskretnaya Matematika - Applied Discrete Mathematics. 2009. № 3(5).
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