Now showing items 1-5 of 5

    • Advanced cryptographic techniques for building verifiable and transparent electronic voting protocols 

      Escala Ribas, Alex (Universitat Politècnica de Catalunya, 2017-07-21)
      Doctoral thesis
      Open Access
      Electronic voting presents many challenges due to its multiple security requirements. Some of the challenges are related to guaranteeing voters' privacy and system's transparency, which are hard to satisfy simultaneously. ...
    • An algebraic framework for Diffie-Hellman assumptions 

      Escala Ribas, Alex; Herold, Gottfried; Kiltz, Eike; Ràfols Salvador, Carla; Villar Santos, Jorge Luis (2017-01)
      Article
      Open Access
      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 ...
    • An algebraic framework for Diffie–Hellman assumptions 

      Escala Ribas, Alex; Herold, Gottfried; Kiltz, Eike; Ràfols Salvador, Carla; Villar Santos, Jorge Luis (2015-10-22)
      Article
      Open Access
      We put forward a new algebraic framework to generalize and analyze Diffie-Hellman like Decisional Assumptions which allows us to argue about security and applications by considering only algebraic properties. Our D`,k-MDDH ...
    • Nou esquema segur de firma basat en atributs 

      Escala Ribas, Alex (Universitat Politècnica de Catalunya, 2010-07)
      Master thesis (pre-Bologna period)
      Open Access
      En aquest treball proposem un nou esquema de firma basat en atributs. La idea bàsica d’un esquema de firma basat en atributs és que, enlloc de firmar com a una identitat es firma com a algú que conté una sèrie d’atributs. ...
    • Vote validatability in Mix-Net-based eVoting 

      Bibiloni, Pedro; Escala Ribas, Alex; Morillo Bosch, M. Paz (2015)
      Article
      Open Access
      One way to build secure electronic voting systems is to use Mix-Nets, which break any correlation between voters and their votes. One of the characteristics of Mix-Net-based eVoting is that ballots are usually decrypted ...