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  • Ajouter à votre agenda17/10/2019 - Brute-Force Cryptanalysis with Aging Hardware: Controling Half the Output of SHA-256
    horario : 14:30
    Conferenciante(s) : Charles Bouillaguet
    This paper describes three random-looking bit strings whose hashes by SHA-256 maintain a non-trivial relation: their XOR starts with 128 zero bits. They have been found by brute-force, without exploiting any cryptographic weakness in the hash function itself. This shows that birt...
    Salle 309, couloir 24-25, 4 place Jussieu - 75005 Paris
  • Ajouter à votre agenda17/10/2019 - User Centric Data Exploration
    horario : 11:00
    Conferenciante(s) : Nicolas Labroche (Université François Rabelais de Tours), Patrick Marcel (Université François Rabelais de Tours)
    Traditional data exploration is an iterative process that generally starts with fuzzy initial user needs, and a prescriptive querying language such as SQL to extract meaningful information. Since their inception, most DBMSs have notoriously been optimized to ensure that massive q...
    LIP6, salle 105 (1er étage), couloir 25-26, 4 place Jussieu, 75005 Paris -
  • Ajouter à votre agenda24/10/2019 - Wave: a New Family of Trapdoor One-Way PSF Based on Codes
    horario : 14:30
    Conferenciante(s) : Thomas Debris
    (joint work with Nicolas Sendrier and Jean-Pierre Tillich)
    We present here a new family of trapdoor one-way Preimage Sampleable Functions (PSF) based on codes, the Wave-PSF family. The trapdoor function is one-way under two computational assumptions: the hardness of gene...

    Salle 309, couloir 24-25, 4 place Jussieu - 75005 Paris
  • Ajouter à votre agenda07/11/2019 - Lower and Upper Bounds on the Randomness Complexity of Private Computations of AND
    horario : 14:30
    Conferenciante(s) : Damien Vergnaud
    (joint work with Eyal Kushilevitz, Rafail Ostrovsky, Emmanuel Prouff, Adi Rosen & Adrian Thillard)
    We consider multi-party information-theoretic private protocols, and specifically their randomness complexity. The randomness complexity of private protocols is of interest bot...

    Salle 309, couloir 24-25, 4 place Jussieu - 75005 Paris
  • Ajouter à votre agenda15/03/2020 - Journées C2
    L’objectif de ces journées est de réunir la communauté scientifique française dont les thèmes de recherche sont liés au codage et à la cryptographie.
    Ces journées sont organisées par le groupe de travail C2 du GDR IM et du GDR Sécurité Informatique, ainsi que par l’IRISA (CN...

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