Access Control on Big Data and Small Pixels: How to Achieve Privacy and Security

With high-volume, function-rich Web services on spatio-temporal raster data on the rise there is a growing need for adaptive access control. However, while the data-cube paradigm has proven suitable for large-scale, efficient raster services it is not yet clear how appropriate access control mechanisms can be provided to service administrators. In this contribution we provide a model which extends the SQL datacube query language, SQL/MDA, with flexible definition and enforcement of array-aware access control.