Scientific Papers


Authors: Claudia Morgadoy, Gisele Busichia Baioco, Tania Basso, Regina Moraes - University of Campinas, Limeira, Brazil

Nowadays, organizations collect vast amounts of data for future analysis. Motivated by this amount of data and requirements of Web2.0, a plethora of non-relational databases (NoSQL) emerged in recent years. However, several security features in relational databases (e.g., access control) have been left in non-relational management systems to be developed by the application, which can raise security breaches. This paper proposes a security model, based on the use of...

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Authors: Francisco Brasileiro and Andrey Brito, from Department of Systems and Computing Universidade Federal de Campina Grande Ignacio Blanquer, Institute of Instrumentation for Molecular Imaging (I3M) Universitat Politecnica de Valencia - CSIC

This paper describes the goals of the ATMOSPHERE project, which is a multi-institutional research and development (R&D) effort aiming at designing and implementing a framework and platform to develop, build, deploy, measure and evolve trustworthy, cloud-enabled applications. The proposed system should address the federation of geographically distributed cloud computing providers that rely on lightweight virtualization, and provide access to heterogeneous sets of resources. We discuss some preliminary results, including the architecture that has been proposed to address these challenges...

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Authors: Tania Basso and Regina Moraes (University of Campinas), Nuno Antunes and Marco Vieira (University of Coimbra)

Frequently users have to provide personal information for being able to use web applications and services. They are commonly confronted with a privacy policy that they must accept, implicitly trusting the provider organization to protect their privacy. The recent trend to develop frameworks for privacy policy definition has moved the state-of-the-art forward, but did not solve the main problems: allow users to express their privacy requirements and assure that these requirements will be enforced. This paper discusses the main challenges towards the development of privacy-aware web...

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Authors: Tania Basso, Roberta Matsunaga, Regina Moraes, Nuno Antunes


This paper provides an overview of the tools and methodologies for data privacy protection that can cope with the challenges raised by the Big Data storage and analytics processing, with focus on anonymity. Preserving individual privacy is one of the major issues in the context of Big Data, as while handling huge volumes of data, it is possible that sensitive or personally identifiable information ends up disclosed. In fact, even when dealing with anonymized raw data, sensitive information may be extracted through analytics. Preserving anonymity is...

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