Now showing items 1-17 of 17

    • A modeling of certificate revocation and its application to synthesis of revocation traces 

      Hernández Gañán, Carlos; Mata Diaz, Jorge; Muñoz Tapia, José Luis; Hernández Serrano, Juan; Esparza Martín, Óscar; Alins Delgado, Juan José (2012)
      Article
      Restricted access - publisher's policy
      One of the hardest tasks of a public key infrastructure (PKI) is to manage revocation. New communication paradigms push the revocation system to the limit and an accurate resource assessment is necessary before implementing ...
    • Area-efficient snoopy-aware NoC design for high-performance chip multiprocessor systems 

      Roca Pérez, Antoni; Hernández Gañán, Carlos; Lodde, Mario; Flich Cardo, José (2015-07-01)
      Article
      Open Access
      Manycore CMP systems are expected to grow to tens or even hundreds of cores. In this paper we show that the effective co-design of both, the network-on-chip and the coherence protocol, improves performance and power meanwhile ...
    • Certificate status information distribution and validation in vehicular networks 

      Hernández Gañán, Carlos (Universitat Politècnica de Catalunya, 2013-09-04)
      Doctoral thesis
      Open Access
      Vehicular ad hoc networks (VANETs) are emerging as an functional technology for providing a wide range of applications to vehicles and passengers. Ensuring secure functioning is one of the prerequisites for deploying ...
    • COACH: COllaborative certificate stAtus CHecking mechanism for VANETs 

      Hernández Gañán, Carlos; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Mata Diaz, Jorge; Hernández Serrano, Juan; Alins Delgado, Juan José (2011-11-01)
      Article
      Restricted access - publisher's policy
      Vehicular Ad Hoc Networks (VANETs) require mechanisms to authenticate messages, identify valid vehicles, and remove misbehaving vehicles. A public key infrastructure (PKI) can be used to provide these functionalities using ...
    • Impact of the revocation service in PKI prices 

      Hernández Gañán, Carlos; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Mata Diaz, Jorge; Alins Delgado, Juan José (2012)
      Conference report
      Restricted access - publisher's policy
      The ability to communicate securely is needed for many network applications. Public key infrastructure (PKI) is the most extended solution to verify and confirm the identity of each party involved in any secure transaction ...
    • Impacto de las unidades a pie de carretera en las interferencias en redes vehiculares 

      Hernández Gañán, Carlos; Reñé Vicente, Sergi; Mata Diaz, Jorge; Alins Delgado, Juan José (2013)
      Conference report
      Restricted access - publisher's policy
      Las redes ad hoc vehiculares (VANETs) han emergido como una tecnolog´ıa clave que posibilita el despliegue diversas aplicaciones. Proporcionar seguridad a los servicios de informaci´on y entretenimiento en estos entornos ...
    • Improving time-randomized cache design 

      Benedicte Illescas, Pedro; Hernández Gañán, Carlos; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (Barcelona Supercomputing Center, 2018-04-24)
      Conference report
      Open Access
      Enabling timing analysis for caches has been pursued by the critical real-time embedded systems (CRTES) community for years due to their potential to reduce worstcase execution times (WCET). Measurement-based protabilistic ...
    • Mecanismo para evitar ataques por confabulación basados en code passing 

      Jaimez, Marc; Esparza Martín, Óscar; Hernández Gañán, Carlos; Parra Arnau, Javier (2009)
      Conference report
      Restricted access - publisher's policy
      Los agentes móviles son entidades software formadas por código, datos, itinerario y estado, que pueden migrar de host en host autónomamente ejecutando su código. A pesar de sus ventajas, los aspectos de seguridad restringen ...
    • MHT-based mechanism for certificate revocation in VANETs 

      Muñoz Tapia, José Luis; Esparza Martín, Óscar; Hernández Gañán, Carlos; Mata Diaz, Jorge; Alins Delgado, Juan José; Ganchev, Ivan (Springer, 2014-07)
      Part of book or chapter of book
      Restricted access - publisher's policy
      Vehicular Ad Hoc Networks (VANETs) require mechanisms to authenticate messages, identify valid vehicles, and remove misbehaving vehicles. A Public Key Infrastructure (PKI) can be utilized to provide these functionalities ...
    • Nuevo criterio para la estimación de información de estado de certificados en MANET 

      Muñoz Tapia, José Luis; Parra Arnau, Javier; Hernández Gañán, Carlos; Jáimez, Marc (Universidad Politécnica de Cartagena, 2009)
      Conference report
      Restricted access - publisher's policy
      In general, certificate status validation is a critical operation but it is particularly complex in Mobile Ad-hoc Networks (MANETs). MANET users require solutions to manage both the lack of fixed infrastructure inside ...
    • Nuevo sistema de emisión de CRLs para la red KAD 

      Caubet, Juan; Hernández Gañán, Carlos; Esparza Martín, Óscar; Muñoz Tapia, José Luis (Editorial Universidad de Granada, 2013)
      Conference report
      Restricted access - publisher's policy
      Muchas overlays P2P requieren ciertos servicios de seguridad para poder ser utilizadas como aplicaciones comerciales, y una simple Infraestructura de Clave P´ublica (PKI) podr´ia solucionar el problema. Sin embargo, ...
    • PKIX Certificate Status in Hybrid MANETs 

      Muñoz Tapia, José Luis; Esparza Martín, Óscar; Hernández Gañán, Carlos; Parra Arnau, Javier (Springer Berlin / Heidelberg, 2009)
      Conference report
      Open Access
      Certificate status validation is a hard problem in general but it is particularly complex in Mobile Ad-hoc Networks (MANETs) because we require solutions to manage both the lack of fixed infrastructure inside the MANET and ...
    • PPREM: Privacy Preserving REvocation Mechanism for Vehicular Ad Hoc Networks 

      Hernández Gañán, Carlos; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Mata Diaz, Jorge; Alins Delgado, Juan José (Elsevier, 2014-03-01)
      Article
      Restricted access - publisher's policy
      One of the critical security issues of Vehicular Ad Hoc Networks (VANETs) is the revocation of misbehaving vehicles. While essential, revocation checking can leak potentially sensitive information. Road Side Units (RSUs) ...
    • RAR: Risk aware revocation mechanism for vehicular networks 

      Hernández Gañán, Carlos; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Mata Diaz, Jorge; Alins Delgado, Juan José; Silva Cárdenas, Carlos; Bartra Gardini, Gumercindo (2012)
      Conference report
      Restricted access - publisher's policy
      Vehicular Ad Hoc Networks (VANETs) require some mechanism to authenticate messages, identify valid vehicles, and remove misbehaving ones. A Public Key Infrastructure (PKI) can provide this functionality using digital ...
    • RAR: Un mecanismo "Risk-Aware" para redes vehiculares 

      Hernández Gañán, Carlos; Muñoz Tapia, José Luis; Hinarejos Campos, M. Francisca; Isern Deyà, Andreu; Alins Delgado, Juan José (2012)
      Conference report
      Restricted access - publisher's policy
      Las redes vehiculares requieren de alg ́ un meca- nismo para autenticar los mensajes, identificar a los veh ́ ıculos leg ́ ıtimos y sacar de la red aqu ́ ellos que no presenten un comportamiento adecuado. La ...
    • Risk-based decision-making for public key infrastructures using fuzzy logic 

      Hernández Gañán, Carlos; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Mata Diaz, Jorge; Alins Delgado, Juan José (2012-11-01)
      Article
      Restricted access - publisher's policy
      Public key infrastructures (PKIs) are complex systems that are responsible for giving users enough information to make reasonable trust judgments about one another. The validation of public keys is hence of great importance. ...
    • Secure handoffs for V2I communications in 802.11 networks 

      Hernández Gañán, Carlos; Reñé Vicente, Sergi; Muñoz Tapia, José Luis; Esparza Martín, Óscar; Mata Diaz, Jorge; Alins Delgado, Juan José (ACM Press. Association for Computing Machinery, 2013)
      Conference report
      Restricted access - publisher's policy
      Vehicular ad hoc networks (VANETs) are emerging as a novel paradigm for safety services, supporting real-time applications (e.g., video-streaming, Internet browsing, online gaming, etc.). However, maintaining ubiquitous ...