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2017
J. Lopez, R. Rios, F. Bao, and G. Wang, "Evolving privacy: From sensors to the Internet of Things", In Future Generation Computer Systems, vol. 75, Elsevier, pp. 46–57, 10/2017. ISI JCR Impact Factor 2016: 3.997 DOI More..

Abstract

The Internet of Things (IoT) envisions a world covered with billions of smart, interacting things capable of offering all sorts of services to near and remote entities. The benefits and comfort that the IoT will bring about are undeniable, however, these may come at the cost of an unprecedented loss of privacy. In this paper we look at the privacy problems of one of the key enablers of the IoT, namely wireless sensor networks, and analyse how these problems may evolve with the development of this complex paradigm. We also identify further challenges which are not directly associated with already existing privacy risks but will certainly have a major impact in our lives if not taken into serious consideration. 

Impact Factor: 3.997
Journal Citation Reports® Science Edition (Thomson Reuters, 2016)

PDF icon Lopez2017iotpriv.pdf (440.5 KB)
C. Fernandez-Gago, F. Moyano, and J. Lopez, "Modelling Trust Dynamics in the Internet of Things", In Information Sciences, vol. 396, Elsevier, pp. 72-82, 2017. ISI JCR Impact Factor 2016: 4.832 DOI More..

Abstract

The Internet of Things (IoT) is a paradigm based on the interconnection of everyday objects. It is expected that the ‘things’ involved in the IoT paradigm will have to interact with each other, often in uncertain conditions. It is therefore of paramount importance for the success of IoT that there are mechanisms in place that help overcome the lack of certainty. Trust can help achieve this goal. In this paper, we introduce a framework that assists developers in including trust in IoT scenarios. This framework takes into account trust, privacy and identity requirements as well as other functional requirements derived from IoT scenarios to provide the different services that allow the inclusion of trust in the IoT.

Impact Factor: 4.832
Journal Citation Reports® Science Edition (Thomson Reuters, 2016)

PDF icon Fer_IS17.pdf (1002.43 KB)
C. Alcaraz, and J. Lopez, "Secure Interoperability in Cyber-Physical Systems", In Security Solutions and Applied Cryptography in Smart Grid Communications, IGI Global, USA, IGI Global, pp. 137-158, 2017. DOI More..

Abstract

Transparency in control transactions under a secure network architecture is a key topic that must be discussed when aspects related to interconnection between heterogeneous cyber-physical systems (CPSs) arise. The interconnection of these systems can be addressed through an enforcement policy system responsible for managing access control according to the contextual conditions. However, this architecture is not always adequate to ensure a rapid interoperability in extreme crisis situations, and can require an interconnection strategy that permits the timely authorized access from anywhere at any time. To do this, a set of interconnection strategies through the Internet must be studied to explore the ability of control entities to connect to the remote CPSs and expedite their operations, taking into account the context conditions. This research constitutes the contribution of this chapter, where a set of control requirements and interoperability properties are identified to discern the most suitable interconnection strategies.

PDF icon 1603.pdf (546.13 KB)
2016
R. Rios, and J. Lopez, "Evolución y nuevos desafios de privacidad en la Internet de las Cosas", In XIV Reunión Española sobre Criptología y Seguridad de la Información, pp. 209-213, 10/2016. More..

Abstract

La Internet de las Cosas (en inglés, Internet of Things (IoT)) es una evolución de la Internet tal y como lo conocemos. Esta nueva versión de Internet incorpora objetos de la vida cotidiana, rompiendo así barrera de los digital y extendiéndose al mundo físico. Estos objetos interactuarán entre sí y con otras entidades tanto de manera local como remota, y estarán dotados de cierta capacidad computacional y sensores para que sean conscientes de lo que ocurre en su entorno. Esto traerá consigo un sinfín de posibilidades y nuevos servicios, pero también dará lugar a nuevos y mayores riesgos de privacidad para los ciudadanos. En este artículo, estudiamos los problemas de privacidad actuales de una de las tecnologías claves para el desarrollo de este prometedor paradigma, las redes de sensores, y analizamos como pueden evolucionar y surgir nuevos riesgos de privacidad al ser completamente integradas en la Internet.

 

PDF icon Rios2016a.pdf (263.7 KB)
2013
R. Roman, J. Zhou, and J. Lopez, "On the features and challenges of security and privacy in distributed internet of things", In Computer Networks, vol. 57, Elsevier, pp. 2266–2279, July 2013. ISI JCR Impact Factor 2013: 1.282 DOI More..

Abstract

In the Internet of Things, services can be provisioned using centralized architectures, where central entities acquire, process, and provide information. Alternatively, distributed architectures, where entities at the edge of the network exchange information and collaborate with each other in a dynamic way, can also be used. In order to understand the applicability and viability of this distributed approach, it is necessary to know its advantages and disadvantages – not only in terms of features but also in terms of security and privacy challenges. The purpose of this paper is to show that the distributed approach has various challenges that need to be solved, but also various interesting properties and strengths.

Impact Factor: 1.282
Journal Citation Reports® Science Edition (Thomson Reuters, 2013)

PDF icon roman2013iot.pdf (407.59 KB)
C. Alcaraz, R. Roman, P. Najera, and J. Lopez, "Security of Industrial Sensor Network-based Remote Substations in the context of the Internet of Things", In Ad Hoc Networks, vol. 11, Elsevier, pp. 1091–1104, 2013. ISI JCR Impact Factor 2013: 1.943 DOI More..

Abstract

The main objective of remote substations is to provide the central system with sensitive information from critical infrastructures, such as generation, distribution or transmission power systems. Wireless sensor networks have been recently applied in this particular context due to their attractive services and inherent benefits, such as simplicity, reliability and cost savings. However, as the number of control and data acquisition systems that use the Internet infrastructure to connect to substations increases, it is necessary to consider what connectivity model the sensor infrastructure should follow: either completely isolated from the Internet or integrated with it as part of the Internet of Things paradigm. This paper therefore addresses this question by providing a thorough analysis of both security requirements and infrastructural requirements corresponding to all those TCP/IP integration strategies that can be applicable to networks with constrained computational resources.

Impact Factor: 1.943
Journal Citation Reports® Science Edition (Thomson Reuters, 2013)

PDF icon 1752.pdf (1.21 MB)
2012
J. Clarke, et al., "Trust & Security RTD in the Internet of Things: Opportunities for International Cooperation", In Proceedings of the First International Conference on Security of Internet of Things, ACM, pp. 172–178, 2012. DOI More..

Abstract

While there has been considerable progress in the research and technological development (RTD) of the Internet of Things (IoT), there is still considerable RTD required by international communities for the trust, privacy and security research challenges arising from the constitution of the IoT architectures, infrastructures, communications, devices, objects, applications and services. In this paper, we present an thorough analysis of the ongoing and future RTD work, specifically in Europe, regarding trust, privacy and security of the Internet of Things with a view towards enabling international cooperation efforts around the globe to solve these major research challenges.

2011
R. Roman, P. Najera, and J. Lopez, "Securing the Internet of Things", In IEEE Computer, vol. 44, no. 9, IEEE, pp. 51 -58, Sept 2011. ISI JCR Impact Factor 2011: 1.47 DOI More..

Abstract

This paper presents security of Internet of things. In the Internet of Things vision, every physical object has a virtual component that can produce and consume services Such extreme interconnection will bring unprecedented convenience and economy, but it will also require novel approaches to ensure its safe and ethical use. The Internet and its users are already under continual attack, and a growing economy-replete with business models that undermine the Internet’s ethical use-is fully focused on exploiting the current version’s foundational weaknesses.

Impact Factor: 1.47
Journal Citation Reports® Science Edition (Thomson Reuters, 2011)

PDF icon 1633.pdf (373.78 KB)
2010
C. Alcaraz, R. Roman, P. Najera, and J. Lopez, "Acceso seguro a redes de sensores en SCADA a través de Internet", In XI Reunión Española sobre Criptología y Seguridad de la Información (RECSI 2010), pp. 337-342, September, 2010. More..

Abstract

Las Infraestructuras Críticas (ICs) son monitorizadas por sistemas altamente complejos, conocidos como sistemas SCADA (Sistemas de Control y Adquisición de Datos), cuyo principal soporte se encuentra en las subestaciones, las cuales miden de primera instancia el estado real de tales ICs. Para mejorar este control, la industria está actualmente demandando la integración en el modelo tradicional de dos avances tecnológicos: Internet y las redes de sensores inalámbricas. Sin embargo, su incorporación requiere analizar los requisitos de seguridad que surgen en dicho contexto, así como diversos aspectos correlacionados (ej. mantenimiento, rendimiento, seguridad y optimización) y, en base a estos, la estrategia de integración más adecuada para satisfacer dichos requisitos. Este artículo proporciona dicho análisis en profundidad con el fin de ofrecer un modelo de integración seguro adecuado para entornos críticos.

PDF icon Alcaraz2010.pdf (496.18 KB)