Enhancing privacy and authorization control scalability in the grid through ontologies

Authors:
I. Blanquer;V. Hernández;D. Segrelles;E. Torres
Affiliations:
Institute for the Applications of Advanced Information and Comunication Technologies and Network Centre for Biomedical Engineering, Polytechnic University of Valencia, Valencia, Spain;Valencia University of Technology, Valencia, Spain;Valencia University of Technology, Valencia, Spain;Department of Information Systems and Computation, Polytechnic University of Valencia, Valencia, Spain
Venue:
IEEE Transactions on Information Technology in Biomedicine
Year:
2009

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Abstract

The use of data Grids for sharing relevant data has proven to be successful in many research disciplines. However, the use of these environments when personal data are involved (such as in health) is reduced due to its lack of trust. There are many approaches that provide encrypted storages and key shares to prevent the access from unauthorized users. However, these approaches are additional layers that should be managed along with the authorization policies. We present in this paper a privacy-enhancing technique that uses encryption and relates to the structure of the data and their organizations, providing a natural way to propagate authorization and also a framework that fits with many use cases. The paper describes the architecture and processes, and also shows results obtained in a medical imaging platform.