Privacy-preserving digital credentials are cryptographic tools that allow a user to prove a predicate about his/her identity or qualifications, without the verifying party learning additional information beyond the status of that predicate. The Identity Mixer (Idemix) [CL01] is a framework providing such credentials. In Idemix, we can distinguish two types of credentials: (1) one-time show cred...

A short segment on Alice has been used in introductory programming classes. The intent was to introduce objects in an easily accessible way. In the third iteration of this approach a presentation was made on quality issues in dramatics. The students were instructed on how to make the video more entertaining. Although this may be accomplished in a class hour or less, the results were encouraging...

Notre travail s’intègre dans la problématique générale de la stabilité du réseau ad hoc. Plusieurs, travaux ont attaqué ce problème. Parmi ces travaux, on trouve la modélisation du réseau ad hoc sous forme d’un graphe (les machines correspondent aux nœuds, les arrêtes correspondent aux liens entre les machines). Donc le problème de stabilité du réseau ad hoc qui correspond à un problème d’alloc...