Ruiz Rodriguez, Alexandre (Date of defense: 2013-07-22)
The present thesis deals with primitives related to the eld of distributed cryptography. First, we study signcryption schemes, which provide at the same time the functionalities of encryption and ...
Vena Cros, Lluís (Date of defense: 2012-07-02)
This thesis presents some contributions in additive combinatorics and arithmetic Ramsey theory. More specifically, it deals with the interaction between combinatorics, number theory and additive ...