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Conditional Linear Cryptanalysis

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If you have a question about this talk, please contact Alexander Vetterl.

In this talk we will discuss some new techniques in linear cryptanalysis, that can improve the bias of linear approximations. These techniques can also create some new kinds of linear approximations, that were hard to find previously. When used in attacks, these techniques can reduce the complexity of some known attacks. In particular, they improve over Matsui’s attack on DES . This is a joint work with Stav Perle.

This talk is part of the Computer Laboratory Security Seminar series.

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