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  • A collaborative protocol for anonymous reporting in vehicular ad hoc networks 

    Tripp Barba, Carolina; Urquiza Aguiar, Luis; Aguilar Igartua, Mónica; Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge; Pallarès Segarra, Esteve (Elsevier, 2013-11-01)
    Article
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    Vehicular ad hoc networks (VANETs) have emerged to leverage the power of modern communication technologies, applied to both vehicles and infrastructure. Allowing drivers to report traffic accidents and violations through ...

  • A Collaborative Protocol for Private Retrieval of Location-Based Information 

    Rebollo Monedero, David; Forné Muñoz, Jorge; Subirats Maté, Laia; Solanas, Agustí; Martínez-Ballasté, Antoni (IADIS Press, 2009)
    Comunicació de congrés
    Accés obert
    Privacy and security are paramount for the proper deployment of location-based services (LBSs). We present a novel protocol based on user collaboration to privately retrieve location-based information from an LBS provider. ...

  • An Algorithm for k-Anonymous Microaggregation and Clustering Inspired by the Design of Distortion-Optimized Quantizers 

    Forné Muñoz, Jorge; Soriano Ibáñez, Miguel (Elsevier Science Ltd., 2011)
    Article
    Accés restringit per política de l'editorial
    We present a multidisciplinary solution to the problems of anonymous microaggregation and clustering, illustrated with two applications, namely privacy protection in databases, and private retrieval of location-based ...

  • A privacy-preserving architecture for the semantic web based on tag suppression 

    Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (Springer, 2010)
    Text en actes de congrés
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    We propose an architecture that preserves user privacy in the semantic Web via tag suppression. In tag suppression, users may wish to tag some resources and refrain from tagging some others in order to hinder privacy ...

  • A Privacy-Preserving Architecture for the Semantic Web Based on Tag Suppression 

    Parra, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (2010-09)
    Article
    Accés restringit per política de l'editorial
    We propose an architecture that preserves user privacy in the semantic Web via tag suppression. In tag suppression, users may wish to tag some resources and refrain from tagging some others in order to hinder privacy ...

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

    Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (Springer, 2011)
    Text en actes de congrés
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    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 privacy-protecting architecture for collaborative filtering via forgery and suppression of ratings 

    Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (2012)
    Article
    Accés restringit per política de l'editorial
    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 privacy-protecting architecture for recommendation systems via the suppression of ratings 

    Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (2012-04)
    Article
    Accés restringit per política de l'editorial
    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 ...

  • Building hierarchical public key infrastructures in mobile ad-hoc networks 

    Satizábal Echavarría, Isabel Cristina; Forné Muñoz, Jorge; Hernández Serrano, Juan; Pegueroles Vallés, Josep R. (Springer, 2006)
    Text en actes de congrés
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    Dynamism of mobile ad-hoc networks implies changing trust relationships among their nodes that can be established using peer-to-peer PKIs. Here, certification paths can be built although part of the infrastructure is ...

  • Categorization of bibsonomy tags to apply privacy-preserving mechanisms. 

    Parra Arnau, Javier; Rebollo Monedero, David; Forné Muñoz, Jorge (2012-07-24)
    Altres
    Accés obert
    In this technical report, we approach one of the practical aspects when it comes to represent users' interests from their tagging activity, namely the categorization of tags into high-level categories of interest. The ...

  • Certificate revocation system implementation based on the Merkle Hash Tree 

    Muñoz Tapia, José Luis; Forné Muñoz, Jorge; Esparza Martín, Óscar; Soriano Ibáñez, Miguel (2004-01)
    Article
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    Public-key cryptography is widely used to provide Internet security services. The public-key infrastructure (PKI) is the infrastructure that supports the public-key cryptography, and the revocation of certificates implies ...

  • CERVANTES - A certificate validation test-bed 

    Muñoz Tapia, José Luis; Forné Muñoz, Jorge; Esparza Martín, Óscar; Soriano Ibáñez, Miguel (Springer Berlin / Heidelberg, 2004)
    Text en actes de congrés
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    Certificate validation is one of the toughest scalability problems of the PKI. The goal of this paper is to introduce a Java platform for certificate revocation called CERVANTES. CERVANTES pretends to be an easy to extend ...

  • Coherent and automatic address resolution for vehicular ad hoc networks 

    Urquiza Aguiar, Luis; Tripp Barba, Carolina; Rebollo Monedero, David; Mezher, Ahmad Mohamad; Aguilar Igartua, Mónica; Forné Muñoz, Jorge (2015)
    Article
    Accés obert
    The interest in vehicular communications has increased notably. In this paper, the use of the address resolution (AR) procedures is studied for vehicular ad hoc networks (VANETs).We analyse the poor performance of AR ...

  • Coherent, automatic address resolution for vehicular ad hoc networks 

    Urquiza Aguiar, Luis; Tripp Barba, Carolina; Rebollo Monedero, David; Mezher, Ahmad Mohamad; Aguilar Igartua, Mónica; Forné Muñoz, Jorge; Estrada Jiménez, José (2017-01-01)
    Article
    Accés obert
    The interest in vehicular communications has increased notably. In this paper, the use of the address resolution (AR) procedures is studied for vehicular ad hoc networks (VANETs). We analyse the poor performance of AR ...

  • ¿Cómo medir la privacidad? 

    Forné Muñoz, Jorge; Rebollo Monedero, David (2009-11)
    Article
    Accés obert
    En el presente estudio revisamos el estado del arte sobre métricas de privacidad en métodos con perturbación para el control estadístico de revelación. Aunque el artículo se enfoca en microagregación de datos, dichos métodos ...

  • Computational improvements in parallelized k-anonymous microaggregation of large databases 

    Mezher, Ahmad Mohamad; Garcia Alvarez, Alejandro; Rebollo Monedero, David; Forné Muñoz, Jorge (2017)
    Text en actes de congrés
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    The technical contents of this paper fall within the field of statistical disclosure control (SDC), which concerns the postprocessing of the demographic portion of the statistical results of surveys containing sensitive ...

  • Digital hyper-transparency: leading e-government against privacy 

    Rodríguez Hoyos, Ana; Estrada Jiménez, José; Urquiza Aguiar, Luis; Parra Arnau, Javier; Forné Muñoz, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Comunicació de congrés
    Accés obert
    For a long time, the Internet and web technologies have supported a more fluid interaction between public institutions and citizens through e-government. With this spirit, several public services are being offered online. ...

  • Does k-anonymous microaggregation affect machine-learned macrotrends? 

    Rodríguez Hoyos, Ana; Estrada Jiménez, José; Rebollo Monedero, David; Parra Arnau, Javier; Forné Muñoz, Jorge (Institute of Electrical and Electronics Engineers (IEEE), 2018-05-16)
    Article
    Accés obert
    n the era of big data, the availability of massive amounts of information makes privacy protection more necessary than ever. Among a variety of anonymization mechanisms, microaggregation is a common approach to satisfy the ...

  • Evaluation of a query-obfuscation mechanism for the privacy protection of user profile 

    Estrada, Jose Antonio; Rodríguez, Ana Fernanda; Parra-Arnau, Javier; Forné Muñoz, Jorge (2014-06-30)
    Article
    Accés obert
    Traces related to our identity are left every day while we browse the Internet. Being the user’s information a very valued asset for most of the companies, user activities on Internet are permanently monitored, and the ...

  • From t-closeness-like privacy to postrandomization via information theory 

    Rebollo Monedero, David; Forné Muñoz, Jorge; Domingo Ferrer, Josep (2010)
    Article
    Accés restringit per política de l'editorial
    t-Closeness is a privacy model recently defined for data anonymization. A data set is said to satisfy t-closeness if, for each group of records sharing a combination of key attributes, the distance between the distribution ...