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  • This session has been presented February 05, 2010.

Description

  • Speaker

    Nadia El-Mrabet - Université de Montpellier

Les couplages ont permis la simplification de protocoles existants et la création de protocoles originaux, par exemple la cryptographie basée sur l'identité. Durant un protocole basé sur l'identité, l'utilisateur calcule un couplage entre une entrée secrète et une entrée publique. Nous pouvons alors appliquer des attaques à canaux cachés pour tenter de retrouver ce secret. Nous nous intéressons dans cet exposé à l'attaque différentielle par analyse de courant (acronyme DPA) menée contre l'algorithme de Miller, étape centrale du calcul des couplages de Weil, de Tate, Ate et twisted Ate.

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