Secure and Prepared Newsletter, February 2016, Vol. 12, no. 2

A bi-weekly newsletter for those involved in the fields of homeland security and/or emergency management.

Secure and Prepared Newsletter, March 2016, Vol. 12, no. 3

A bi-weekly newsletter for those involved in the fields of homeland security and/or emergency management.

Secure and Prepared Newsletter, April 2016, Vol. 12, no. 4

A bi-weekly newsletter for those involved in the fields of homeland security and/or emergency management.

A Secure and Anonymous Cooperative Sensing Protocol for Cognitive Radio Networks

Spectrum is an essential resource for the provision of mobile services. In order to control and delimit its use, governmental agencies set up regulatory policies. Unfortunately, such policies have led to a deficiency of spectrum as only few frequency bands are left unlicensed, and these are used for the majority of new emerging wireless applications. One promising way to alleviate the spectrum shortage problem is adopting a spectrum sharing paradigm in which frequency bands are used opportunistically. Cognitive radio is the key technology to enable this shift of paradigm.Cognitive radio networks are self-organized systems in which devices cooperate to use those spectrum ranges that are not occupied by licensed users. They carry out spectrum sensing in order to detect vacant channels that can be used for communication. Even though spectrum sensing is an active area of research, an important issue remains unsolved: the secure authentication of sensing reports. Not providing security enables the input of false data in the system thus empowering false results. This paper presents a distributed protocol based on wireless physical layer security, symmetric cryptography and one-way functions that allows determining a final sensing decision from multiple sources in a quick and secure way, as well as it preserves users¿ privacy.

Automated monitoring of medical protocols: a secure and distributed architecture

The control of the right application of medical protocols is a key issue in hospital environments. For the automated monitoring of medical protocols, we need a domain-independent language for their representation and a fully, or semi, autonomous system that understands the protocols and supervises their application. In this paper we describe a specification language and a multi-agent system architecture for monitoring medical protocols. We model medical services in hospital environments as specialized domain agents and interpret a medical protocol as a negotiation process between agents. A medical service can be involved in multiple medical protocols, and so specialized domain agents are independent of negotiation processes and autonomous system agents perform monitoring tasks. We present the detailed architecture of the system agents and of an important domain agent, the database broker agent, that is responsible of obtaining relevant information about the clinical history of patients. We also describe how we tackle the problems of privacy, integrity and authentication during the process of exchanging information between agents.

CLARIN: common language resources and technology infrastructure

Presentamos el proyecto CLARIN, un proyecto cuyo objetivo es potenciar el uso de instrumentos tecnológicos en la investigación en las Humanidades y Ciencias Sociales

Secure and Anonymous Multimedia Content Distribution in Peer-to-Peer Networks

Peer-reviewed

Open access and e-infrastructure

Presentation at Open Repositories 2014, Helsinki, Finland, June 9-13, 2014

Developing and maintaining infrastructure services for libraries, archives and museums

Esitys Dries Moreelsin tapaamisessa (Ghent University Library) 15.–16.10. 2014, Vallila Helsinki. /Performance at visit of Dries Moreels Ghent University Library oct 15th- oct 16th 2014, Vallila Helsinki.

Developing and maintaining infrastructure services for libraries, archives and museums

Esitys Helsingissä 24.9.2014.

Transfers and Municipal Infrastructure Expenditures in Canada: 1988-2003. Is There a Flypaper Effect?.

Rapport de recherche

Growth and public infrastructure

The paper analyzes a multicountry extension of the Barro model of productive public expenditure. In the presence of positive infrastructural externalities between countries, the provision of infrastructure will be inefficiently low if countries do not coordinate. This provides a role for a supranational body, such as the European Union, to coordinate the policies of the individual governments. It is shown how intervention by a supranational body can raise welfare by internalizing the infrastructural externality. Infrastructural externalities increase the importance of tax policy in the growth process and distribute the benefits of taxation across countries.