Séminaire Cryptographie

Infos pratiques

• Date

  Le séminaire de cryptographie de Rennes se déroule le vendredi à 13h45. Les participants peuvent suggérer un invité ou un sujet d'exposé en utilisant le formulaire ci-dessous.
• Emplacement

  IRMAR - Université de Rennes - Campus Beaulieu Bat. 22, RDC, Rennes Amphi Lebesgue
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• Proposer un exposé

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Prochains exposés

• Cryptanalysis of full BEANIE

  • 05 juin 2026 (13:45 - 14:45)

  • IRMAR - Université de Rennes - Campus Beaulieu Bat. 22, RDC, Rennes - Amphi Lebesgue

  Orateur : Xavier Bonnetain - Inria

  BEANIE is a tweakable block cipher recently published at ToSC aiming for memory encryption of microcontroller units. In line with this goal, it handles small plaintexts of only 32 bits and has a low latency. In this paper, we propose the first third-party analysis of the two variants of BEANIE. By carefully leveraging structural properties of the cipher and taking advantage of its distinctive[…]

  • Cryptography

  • Symmetrical primitive

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Presentation du séminaire

• About cryptography

  Scientists welcome the renewed interest and original insight that cryptography brings to their disciplines, as well as the intellectual challenges posed to them.

  Multidisciplinary par excellence, cryptography constitutes a point of contact between number theory, algebraic geometry, algorithms and computer science. It brings whole sections of the most fundamental mathematics into contact with applications of great practical importance. 

• The seminar leaders

  Leader :

  • Sylvain Duquesne ( University of Rennes) (leader) 

  Board :

  • Gwezenheg Robert (DGA)
  • André Schrottenloher (INRIA)  

• The scientific committee

  • Philippe Chartier (IRMAR)
  • Clément Dell'aiera (DGA-MI & IRISA)
  • Sylvain Duquesne (IRMAR)
  • Antonin Leroux (DGA-MI & IRMAR)
  • Pierre Loidreau (DGA-MI & IRMAR)
  • David Lubicz (DGA-MI & IRMAR)
  • Jade Nardi (IRMAR)
  • Gwezenheg Robert (DGA-MI & IRMAR)
  • André Schrottenloher (IRISA)
  • YiXin Shen (IRISA)
  • Arnaud Tisserand 

• The organizations involved

  • The General Directorate of Armament (DGA) : state body responsible for the development of cryptographic algorithms, which depends on the the Ministry of the Armed Forces.
  • Rennes Mathematical Research Institute (IRMAR) : mathematics research laboratory associating the National Center for Scientific Research (CNRS), the University of Rennes, the École Normale Supérieure de Cachan (ENS Cachan), the National Institute of Applied Sciences of Rennes (INSA Rennes) and the University of Rennes 2.
  • Institute for Research in Computer Science and Random Systems (IRISA): computer science research laboratory in Rennes.

  DGA, IRISA and IRMAR wish, by organizing this cooperative seminar, to crystallize the interest of different actors in the Rennes region around cryptography and, beyond current fashion, to encourage fruitful and scientific collaboration. quality.