Titlebook: Data and Applications Security and Privacy XXIX; 29th Annual IFIP WG Pierangela Samarati Conference proceedings 2015 IFIP International Fe

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Migrating from DAC to RBACed as the least expensive configuration with respect to security administration. In this paper, we demonstrate that security administration is not always cheaper under RBAC when compared to the traditional Discretionary Access Control (DAC). If RBAC proves to be beneficial, organizations may choose

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Assisting the Deployment of Security-Sensitive Workflows by Finding Execution Scenariost. We study how to do this for an important class of business processes, called security-sensitive workflows, in which execution constraints on the tasks are complemented with authorization constraints (e.g., Separation of Duty) and authorization policies (constraining which users can execute which

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Privacy-Preserving Public Transport Ticketing System, significantly improving the user experience. The digital data is also used to improve the services’ efficiency. Travelling patterns and route occupancy can be analysed to adjust the frequency and coverage of the service. However, data recorded by the providers extends the information that is neede

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FamilyID: A Hybrid Approach to Identify Family Information from Microblogsking services. In particular, we have observed that family related information, including some very sensitive information, are freely available and easily extracted from Twitter. In this paper, we present a hybrid information retrieval mechanism, namely FamilyID, to identify and extract family relat