Cryptographie

Le calcul modulaire est utilisé dans de nombreuses applications des mathématiques...

Exposé de Vanessa Vitse (Institut Fourier) : Nombres de Sophie Germain et codes secrets

Information Structures for Privacy and Fairness

This seminar will talk about some of the privacy risks of these systems and will describe some recent attacks. It will also discuss why they sometimes fail to deliver. Finally, we will also show that

 There are two standard ways to describe a subspace, explicitly by giving a basis, or implicitly, by the solution space of the set of homogeneous linear equations. Therefore, there are two ways of

In this session, I will detail two combinatorial solutions to the decoding problem. The first one is the Exhaustive Search. To find our w columns, we will simply enumerate all the tuples j1 to jw

In this session, we will present an attack against Algebraic Geometry codes (AG codes). Algebraic Geometry codes is determined by a triple. First of all, an algebraic curve of genus g, then a n

Dans cet exposé, on évoquera brièvement les étapes de l'histoire de la cryptologie. On expliquera notamment comment une spécialité, jadis confinée aux univers de la défense et de la diplomatie, est

This sequence will be about the error-correcting capacity of a linear code. We describe the way of considering the space Fq^n as a metric space. This metric is necessary to justify the principle of

In this third session, we will present the most important concept of the week: Information Set Decoding. The problem of decoding is not only a combinatorial problem. Because we are dealing with

All the results that we have seen this week doesn't mean that code based cryptography is broken. So in this session we will see that Goppa code still resists to all these attacks. So recall that

Cette conférence essaiera de jeter un regard original sur certains aspects de la révolution numérique : plutôt que de tenir un discours cent fois entendu sur les dangers du piratage et sur la

À l'ère du tout connecté, la question de la sécurité de nos données personnelles est devenue primordiale. Comment faire pour garder le contrôle de nos données ? Comment déjouer les pièges de plus en