http://hdl.handle.net/10016/5551 2013-05-23T09:51:20Z 2013-05-23T09:51:20Z Fuentes, José María de González-Tablas, Ana Isabel Hernández-Ardieta, Jorge L. Ribagorda, Arturo http://hdl.handle.net/10016/14412 2012-10-08T10:42:55Z 2012-08-31T22:00:00Z

Title: Towards an automatic enforcement for speeding: enhanced model and ITS realization Author(s): Fuentes, José María de; González-Tablas, Ana Isabel; Hernández-Ardieta, Jorge L.; Ribagorda, Arturo Abstract: An adequate enforcement process is essential to make road traffic fines be effective. Automatising such process is intended to provide with such effectiveness. However, current enforcement practices do not achieve this goal, as they usually have weaknesses regarding the reliable identification of the offender, the immediacy of feedback after the violation, and the completeness of the offence description. Intelligent Transportation Systems (ITSs) technologies may be introduced to contribute on these issues. To enable such integration, a complete model of this process must be built. Based on the VERA2 model and the Spanish traffic legislation, in this work it is proposed an enhanced model that identifies the stakeholders, the process entities, the data at stake and their interchanges. Its suitability to represent current enforcement systems (particularly the Spanish ESTRADA and the French CSA) is evaluated. Furthermore, based on this model, the integration of ITS-related technologies is analysed, as well as their suitability compared to current approaches.

2012-08-31T22:00:00Z Fuentes, José María de González-Tablas, Ana Isabel Ribagorda, Arturo http://hdl.handle.net/10016/9310 2012-09-26T23:05:29Z 2010-01-31T23:00:00Z

Title: Authentication and privacy in vehicular networks Author(s): Fuentes, José María de; González-Tablas, Ana Isabel; Ribagorda, Arturo Abstract: Vehicular ad-hoc networks (VANETs) are composed mainly by vehicles. These communication networks allow data interchanging. In this way, more and better information is provided to drivers, thus achieving a better road safety. Information security is critical in these scenarios, as human lives are at stake. Particularly, spreading false data should be prosecuted, so sender identification and authentication is needed. However, it could allow vehicle tracking. In this way, privacy protection must also be achieved. In this work, mechanisms to fulfill this authentication-privacy compromise are analyzed. Description: Monograph: Identity and Privacy Management

2010-01-31T23:00:00Z Pastrana, Sergio Mitrokotsa, Aikaterini Orfila, Agustin Peris-López, Pedro http://hdl.handle.net/10016/14984 2012-07-25T08:37:30Z 2011-12-31T23:00:00Z

Title: Evaluation of Classification Algorithms for Intrusion Detection in MANETs Author(s): Pastrana, Sergio; Mitrokotsa, Aikaterini; Orfila, Agustin; Peris-López, Pedro Abstract: Mobile Ad-hoc Networks (MANETs) are wireless networks without fixed infrastructure based on the cooperation of independent mobile nodes. The proliferation of these networks and their use in critical scenarios (like battlefield communications or vehicular networks) require new security mechanisms and policies to guarantee the integrity, confidentiality and availability of the data transmitted. Intrusion Detection Systems used in wired networks are inappropriate in this kind of networks since different vulnerabilities may appear due to resource constraints of the participating nodes and the nature of the communication. This article presents a comparison of the effectiveness of six different classifiers to detect malicious activities in MANETs. Results show that Genetic Programming and Support Vector Machines may help considerably in detecting malicious activities in MANETs.

2011-12-31T23:00:00Z Orfila, Agustín Carbó, Javier Ribagorda, Arturo http://hdl.handle.net/10016/13203 2012-02-03T23:24:23Z 2004-10-31T23:00:00Z

Title: Decision Model Analysis for Spam Author(s): Orfila, Agustín; Carbó, Javier; Ribagorda, Arturo Abstract: One of the security challenges of e-Government is to offer a fluid dialogue to citizens that guarantees the availability, confidentiality and integrity of the information interchanged. Spam jeopardizes the sur- vival of electronic mail as a communication mean. Many approaches to solve the spam problem has been proposed. This paper shows the ne- cessity of studying the real value of spam filters. Contrary to common belief, false positive rate and false negative rate do not completely reveal to what extent a junk filter is worth using. Very important parameters like the hostility of the environment (summarized by the probability of receiving spam) or the error costs associated with the filter play a decisive role.

2004-10-31T23:00:00Z