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J. Lopez, R. Roman, I. Agudo, and C. Fernandez-Gago, "Trust Management Systems for Wireless Sensor Networks: Best practices",
Computer Communications, vol. 33, no. 9, Elsevier, pp. 0140-3664, 2010. DOI (I.F.: 0.816)More..


Wireless sensor networks (WSNs) have been proven a useful technology for perceiving information about the physical world and as a consequence has been used in many applications such as measurement of temperature, radiation, flow of liquids, etc. The nature of this kind of technology, and also their vulnerabilities to attacks make the security tools required for them to be considered in a special way. The decision making in a WSN is essential for carrying out certain tasks as it aids sensors establish collaborations. In order to assist this process, trust management systems could play a relevant role. In this paper, we list the best practices that we consider are essential for developing a good trust management system for WSN and make an analysis of the state of the art related to these practices.

Impact Factor: 0.816
Journal Citation Reports® Science Edition (Thomson Reuters, 2010)

PDF icon JavierLopezMunoz2010.pdf (210.98 KB)
J. Lopez, A. Mana, J. A. Montenegro, J. J. Ortega, and J. M. Troya, "Towards a Trustful and Flexible Environment for Secure Communications with Public Administrations",
First International Conference on Electronic Government (EGOV’02), LNCS 2456, Springer, pp. 211-214, September, 2002. More..


Interaction of citizens and private organizations with Public Administrations can produce meaningful benefits in the accessibility, efficiency and availability of documents, regardless of time, location and quantity. Although there are some experiences in the field of e-government there are still some technological and legal difficulties that avoid a higher rate of communications with Public Administrations through Internet, not only from citizens, but also from private companies. We have studied two of the technological problems, the need to work in a trustful environment and the creation of tools to manage electronic versions of the paper-based forms.

PDF icon JavierLopez2002g.pdf (72.46 KB)
J. Lopez, J. A. Montenegro, R. Oppliger, and G. Pernul, "On a Taxonomy of Systems for Authentication and/or Authorization Services",
TERENA Networking Conference, June, 2004. More..


In this work we elaborate on a taxonomy of systems that provide either joint solutions for both authentication and authorization problems, or solutions for only one of the problems. Basically, we do not focus our work on theoretical systems that have been proposed only in the literature. On the other hand, we focus on: (i) systems that are already developed; (ii) systems that are under development or deployment; and (iii) systems that are still in the initial stages of design but are supported by international working groups or bodies. More precisely, we elaborate on a taxonomy of systems that are (or will be soon) available to final users.

PDF icon JavierLopez2004a.pdf (19.35 KB)