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S. Fischer-Hübner, et al., "Stakeholder Perspectives and Requirements on Cybersecurity in Europe",
Journal of Information Security and Applications, vol. 61, no. 102916, Elsevier, 09/2021. DOI (I.F.: 3.872)More..
Impact Factor: 3.872
Journal Citation Reports® Science Edition (Thomson Reuters, 2020)

D. Ferraris, C. Fernandez-Gago, J. Daniel, and J. Lopez, "A Segregated Architecture for a Trust-based Network of Internet of Things",
IEEE Consumer Communications & Networking Conference 2019, IEEE, 03/2019. DOI More..


With the ever-increasing number of smart home devices, the issues related to these environments are also growing. With an ever-growing attack surface, there is no standard way to protect homes and their inhabitants from new threats. The inhabitants are rarely aware of the increased security threats that they are exposed to and how to manage them. To tackle this problem, we propose a solution based on segmented architectures similar to the ones used in industrial systems. In this approach, the smart home is segmented into various levels, which can broadly be categorised into an inner level and external level. The external level is protected by a firewall that checks the communication from/to the Internet to/from the external devices. The internal level is protected by an additional firewall that filters the information and the communications between the external and the internal devices. This segmentation guarantees a trusted environment between the entities belonging to the internal network. In this paper, we propose an adaptive trust model that checks the behaviour of the entities and, through this model, in case the entities violate trust rules they can be put in quarantine or banned from the network.

PDF icon 1780.pdf (227.72 KB)
C. Meadows, and C. Fernandez-Gago Eds., Security and Trust Management - 7th International Workshop, STM 2011 , vol. 7170, Springer, July 2012. More..
F. Moyano, C. Fernandez-Gago, and J. Lopez, "Service-Oriented Trust and Reputation Architecture",
Proceedings of the Doctoral Symposium of the International Symposium on Engineering Secure Software and Systems (ESSoS-DS 2012), J. Cuellar, and N. Koch Eds., CEUR-WS 834, CEUR-WS, pp. 41-46, 2012. More..


As the Future Internet arrives, more complex, service-based applications are spreading. These applications pose several challenges, including the huge amount of entities that must interact and their het- erogeneity. The success of these applications depends on the collaboration and communication of these entities, that might belong to different or- ganizations and administrative domains. Therefore, trust and reputation become two crucial issues. We propose the specification and design of a service-based security architecture that stresses the delivery of trust and reputation services to any application that might require them.

PDF icon moyano2012essosds.pdf (188.61 KB)
I. Agudo, C. Fernandez-Gago, and J. Lopez, "A Scale Based Trust Model for Multi-Context Environments",
Computers and Mathematics with Applications, vol. 60, Elsevier, pp. 209-216, July, 2010. DOI (I.F.: 1.472)More..


When interactions among users of a system have to take place, for example, over the internet, establishing trust relationships among these users becomes crucial. However, the way this trust is established depends to a certain extent on the context where the interactions take place. Most of the time, trust is encoded as a numerical value that might not be very meaningful for a not very experienced user. In this paper we propose a model that takes into account the semantic and the computational sides of trust. This avoids users having to deal directly with the computational side; they instead deal with meaningful labels such as Bad or Good in a given context.

Impact Factor: 1.472
Journal Citation Reports® Science Edition (Thomson Reuters, 2010)

PDF icon Agudo2010b.pdf (279.77 KB)
J. L. Vivas, C. Fernandez-Gago, A. Benjumea, and J. Lopez, "A security framework for a workflow-based grid development platform.",
Computer Standards and Interfaces, vol. 32, no. 5-6, Elsevier, pp. 230-245, Oct 2010. DOI (I.F.: 0.868)More..


This paper describes the security framework that is to be developed for the generic grid platform created for the project GREDIA. This platform is composed of several components that need to be secured. The platform uses the OGSA standards, so that the security framework will follow GSI, the portion of Globus that implements security. Thus, we will show the security features that GSI already provides and we will outline which others need to be created or enhanced.

Impact Factor: 0.868
Journal Citation Reports® Science Edition (Thomson Reuters, 2010)

PDF icon vivas2009.pdf (1.34 MB)
C. Fernandez-Gago, R. Roman, and J. Lopez, "A Survey on the Applicability of Trust Management Systems for Wireless Sensor Networks",
3rd International Workshop on Security, Privacy and Trust in Pervasive and Ubiquitous Computing (SecPerU’07), IEEE Computer Society, pp. 25-30, 2007. DOI More..


Trust plays an important role in human life environments and virtual organizations. In the context of a network, trust may help its elements to decide whether another member of the same network is being uncooperative or malicious. Trust becomes quite important in self-configurable and autonomous systems, such as wireless sensor networks (WSN). However, very little effort has been done in the field of trust management in WSN. On the other hand, some efforts have been made in quite related fields such as Ad-hoc and P2P networks. In this paper we give an overview of existing trust management solutions, mainly those developed for Ad-Hoc and P2P networks and, more importantly, investigate their suitability to WSN. We also provide some guidelines to aid the development of trust management systems for WSN according to the nature of these networks.

PDF icon FernandezGago2007.pdf (137.36 KB)
F. Sanchez-Cid, A. Munoz, D. Serrano, and C. Fernandez-Gago, "Software Engineering Techniqes Applied to AmI: Security Patterns",
First International Conference on Ambient Intelligence Developments (AmID’06), Springer, pp. 108-123, September, 2006. DOI More..


The realization of the Ambient Intelligence concept entails many important challenges, but the most important barriers to this realization is the lack of adequate support for security. In this paper we present a conceptual model of our solution for building secure systems for AmI environments, taking as basis the concept of Security and Dependability (S&D) Pattern as a precise representation of validated S&D solutions and mechanisms. The main elements embedded in our solution framework (S&D library, monitoring interface and S&D Manager) are presented both conceptually, and also using a simple example scenario based on an hospital AmI environment.

PDF icon Cid2006.pdf (210.37 KB)
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