Abstract
In this paper, a cryptanalysis on the Self-Shrinking Generator a well known sequence generator with cryptographic application is presented. An improvement in the Guess-and-Determine cryptanalytic technique has been proposed. Numerical results that improve other cryptanalysis developed on such a generator are given. In particular, complexities in the order of O(20.2L) for the amount of intercepted sequence, O(L 2) for computer memory and O(20.5L) for execution time (L being the length of the generator register) are obtained. In addition, a specific hardware for a practical cryptanalysis has been proposed.
This work was supported in part by CDTI (Spain) and the companies INDRA, Unión Fenosa, Tecnobit, Visual Tools, Brainstorm, SAC and Technosafe under Project Cenit-HESPERIA; by Ministry of Science and Innovation and European FEDER Fund under Project TIN2008-02236/TSI.
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Pazo-Robles, M.E., Fúster-Sabater, A. (2011). Cryptanalytic Attack on the Self-Shrinking Sequence Generator. In: Dobnikar, A., Lotrič, U., Šter, B. (eds) Adaptive and Natural Computing Algorithms. ICANNGA 2011. Lecture Notes in Computer Science, vol 6594. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-20267-4_30
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DOI: https://doi.org/10.1007/978-3-642-20267-4_30
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