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Parallel Logical Cryptanalysis of the Generator A5/1 in BNB-Grid System

Авторы: Semenov A., Zaikin O., Bespalov D., Posypkin M.

Журнал: Lecture Notes in Computer Sciences

Том: 6873

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Год: 2011

Отчётный год: 2011

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Аннотация: In logical cryptanalysis a problem of search of a secret key of a cryptographic system is formulated as a SAT problem, i.e. a problem of search of a satisfying assignment for some CNF. In this paper we consider some natural strategies for parallelization of these SAT problems. We apply coarse-grained approach which makes it possible to use distributed computing environments with slow interconnect. The main practical result of this paper is successful logical cryptanalysis of key-stream generator A5/1 in BNB-Grid system.

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