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  • Ajouter à votre agenda03-10-2019 - Lower and Upper Bounds on the Randomness Complexity of Private Computations of AND
    Thời gian : 14:30
    Người thuyết trình : 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 agenda15-10-2019 - Optimizing Multiple Objectives for Clustering
    Thời gian : 10:00
    Người thuyết trình : Sanghamitra Bandyopadhyay (Indian Statistical Institute)
    Clustering is an unsupervised exploratory data analysis tool which groups the data on the basis of some similarity/dissimilarity metric such that a predefined criterion is optimized. The problem of clustering is therefore essentially one of optimization. The use of metaheuristics...
    LIP6, salle 105 (1er étage), couloir 25-26, 4 place Jussieu, 75005 Paris -
  • Ajouter à votre agenda17-10-2019 - Brute-Force Cryptanalysis with Aging Hardware: Controling Half the Output of SHA-256
    Thời gian : 14:30
    Người thuyết trình : 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 agenda24-10-2019 - Wave: a New Family of Trapdoor One-Way PSF Based on Codes
    Thời gian : 14:30
    Người thuyết trình : 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 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...

    Erdeven -
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