Cryptography, in particular public-key cryptography, has emerged in the last 20 years as an
important discipline that is not only the subject of an enormous amount of research, but …

In this work, we study the security of several recent MAC constructions with provable security
beyond the birthday bound. We consider block-cipher based constructions with a double …

The counter mode (CTR) is a simple, efficient and widely used encryption mode using a
block cipher. It comes with a security proof that guarantees no attacks up to the birthday …

RaSTA is a transport protocol that has been designed to be deployed in the safety-critical
domain of railway signalling. The protocol provides safety properties such as message …

We provide a survey about generic attacks on cryptographic hash constructions including
hash-based message authentication codes and hash combiners. We look into attacks …

A method for generating one or more secrets for use by members. The method includes
sending a first request for connection with a second member, and sending a second request …

The Message Authenticator Algorithm (MAA) is one of the first cryptographic functions for
computing a Message Authentication Code. Between 1987 and 2001, the MAA was adopted …

La sécurité des transmissions et du stockage des données est devenue un enjeu majeur de
ces dernières années et la cryptologie, qui traite de la protection algorithmique de …

Nowadays, cryptology is heavily used to protect stored and transmitted data against
malicious attacks, by means of security algorithms. Cryptology comprises cryptography, the …

Cette thèse explore à la fois la construction et l'analyse de primitives de cryptographie
symétrique. Nous obtenons de meilleures constructions que celles de la littérature, en visant …