Listar Departament de Tecnologies de la Informació i les Comunicacions por autoría "Escala, Alex"

Mostrando ítems 1-2 de 2

An algebraic framework for Diffie-Hellman assumptions

Escala, Alex; Herold, Gottfried; Kiltz, Eike; Ràfols, Carla; Villar, Jorge L. (Springer, 2013)

We put forward a new algebraic framework to generalize and analyze Di_e-Hellman like Decisional Assumptions which allows us to argue about security and applications by considering only algebraic properties. Our D`;k-MDDH ...
Identity-based lossy trapdoor functions: new definitions, hierarchical extensions, and implications

Escala, Alex; Herranz, Javier; Libert, Benoît; Ràfols, Carla (Springer, 2014)

Lossy trapdoor functions, introduced by Peikert and Waters (STOC’08), have received a lot of attention in the last years, because of their wide range of applications. The notion has been recently extended to the identity-based ...