Browsing by Subject "Criptografia"

Now showing items 1-20 of 237

    • A CellBE-based HPC application for the analysis of vulnerabilities in cryptographic hash functions 

      Cilardo, Alessandro; Esposito, Luigi; Veniero, Antonio; Mazzeo, Antonino; Beltran Querol, Vicenç; Ayguadé Parra, Eduard (2010)
      Conference report
      Restricted access - publisher's policy
      After some recent breaks presented in the technical literature, it has become of paramount importance to gain a deeper understanding of the robustness and weaknesses of cryptographic hash functions. In particular, in the ...

    • A control plane for WireGuard 

      Paillissé Vilanova, Jordi; Barcia González, Alejandro; López Brescó, Albert; Rodríguez Natal, Alberto; Maino, Fabio; Cabellos Aparicio, Alberto (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Conference report
      Open Access
      WireGuard is a VPN protocol that has gained significant interest recently. Its main advantages are: (i) simple configuration (via pre-shared SSH-like public keys), (ii) mobility support, (iii) reduced codebase to ease ...

    • A Decentralized, Secure and Censorship Resistant Governance Protocol on Ethereum 

      Rodríguez Setó, Oriol (Universitat Politècnica de Catalunya, 2022-07-06)
      Bachelor thesis
      Open Access
      Decentralized governance system on Ethereum implemented with a unique identification system of using the ERC721 standard.

    • A new character-level encryption algorithm: how to implement cryptography in an ICT classroom 

      Arboledas Brihuega, David (OmniaScience, 2019-09)
      Article
      Open Access
      It is evident that the society in which we live will demand more and more qualified and specialized positions in the different branches of engineering. Now we are in a highly digitized world in which information is ...

    • A new class of codes for fingerprinting schemes 

      Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel; Cotrina Navau, Josep (Springer, 2005)
      Conference report
      Restricted access - publisher's policy
      In this paper we discuss the problem of collusion secure fingerprinting. In the first part of our contribution we prove the existence of equidistant codes that can be used as fingerprinting codes. Then we show that by ...

    • A new countermeasure against side-channel attacks based on hardware-software co-design 

      Lumbiarres López, Rubén; López García, Mariano; Cantó Navarro, Enrique (2016-09-01)
      Article
      Open Access
      This paper aims at presenting a new countermeasure against Side-Channel Analysis (SCA) attacks, whose implementation is based on a hardware-software co-design. The hardware architecture consists of a microprocessor, which ...

    • A note about the traceability properties of linear codes 

      Fernández Muñoz, Marcel; Cotrina Navau, Josep; Soriano Ibáñez, Miguel; Domingo, Neus (Springer, 2007)
      Conference report
      Restricted access - publisher's policy
      We characterize the traceability properties of linear codes. It is well known that any code of length n and minimum distance d is a c-TA code if c 2¿<¿n/(n¿-¿d). In this paper, we show that a less restrictive condition can ...

    • A privacy-protecting architecture for collaborative filtering via forgery and suppression of ratings 

      Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (Springer, 2011)
      Conference report
      Restricted access - publisher's policy
      Recommendation systems are information-filtering systems that help users deal with information overload. Unfortunately, current recommendation systems prompt serious privacy concerns. In this work, we propose an architecture ...

    • A safety-critical, RISC-V SoC integrated and ASIC-ready classic McEliece accelerator 

      Kostalampros, Ioannis-Vatistas; Ribes González, Jordi; Farràs Ventura, Oriol; Moretó Planas, Miquel; Hernández Luz, Carles (Springer, 2024)
      Conference report
      Open Access
      Security is an integral part of ensuring the integrity of safety-critical systems. Safety-critical systems with extremely long-lifespan, such as the ones employed in the space and automotive industry, need additional ...

    • A secure communication design based on the chaotic logistic map: an experimental realization using Arduino microcontrollers 

      Zapateiro De La Hoz, Mauricio Fabian; Acho Zuppa, Leonardo; Vidal Seguí, Yolanda (Springer, 2015)
      Part of book or chapter of book
      Restricted access - publisher's policy

    • AAA 

      Navarro Morales, Lara (Factoria BCBL, 2011-05-02)
      Audiovisual
      Open Access

    • AAA Protocol. Autenticació, autorització i comptabilitat 

      Mengual, Ester (Factoria BCBL, 2012-05)
      Audiovisual
      Open Access

    • AAA: autenticación, autorización y accounting 

      Marín Vinuesa, Lara (2010-05-20)
      Audiovisual
      Open Access

    • AAA: autentificación, autoritzación y accounting 

      Toro Sánchez, Alberto Carlos (2010-12)
      Audiovisual
      Open Access

    • Accelerating zero knowledge proofs 

      Pujol Ventosa, Laia (Universitat Politècnica de Catalunya, 2023-10-19)
      Bachelor thesis
      Open Access
      Covenantee:   Massachusetts Institute of Technology / Massachusetts Institute of Technology
      Les proves de coneixement zero són una eina criptogràfica altament prometedora que permet demostrar que un predicat és correcte sense revelar informació addicional sobre aquest. Aquestes tipus de proves són útils en ...

    • Acotación superior de la tasa de información de estructuras de compartición de secretos: algoritmos combinatorios 

      Escudé I Pujol, Manuel (Universitat Politècnica de Catalunya, 2024-05-27)
      Bachelor thesis
      Open Access
      The work builds on the method of sequences of independent subsets, which allows finding an upper bound for the information rate for a specific scheme. To calculate this upper bound, it is necessary to find a lower bound ...

    • 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 experimental realization of a chaos-based secure communication using arduino microcontrollers 

      Zapateiro De La Hoz, Mauricio Fabian; Acho Zuppa, Leonardo; Vidal Seguí, Yolanda (2015-08-27)
      Article
      Open Access
      Security and secrecy are some of the important concerns in the communications world. In the last years, several encryption techniques have been proposed in order to improve the secrecy of the information transmitted. ...

    • Analisis de seguridad de la red TOR 

      Ballesteros Lopez, Ignacio (Universitat Politècnica de Catalunya, 2018-10-31)
      Bachelor thesis
      Open Access
      The TOR network aims at providing anonymity to those users of the Internet who do not want to reveal their identity when browsing specific contents. TOR is composed of a set of routers that make use of cryptography to apply ...

    • Analysis and performance evaluation of post-quantum cryptography methods 

      Calaf Martí, Tomas (Universitat Politècnica de Catalunya, 2025-01-21)
      Bachelor thesis
      Open Access
      This project is delivered as the Final Project of the Computer Engineering degree of the Barcelona School of Informatics. It is intended to put in practice the con- tents and knowledge acquired during the degree and ...