Privacy query rewriting algorithm instrumented by a privacy-aware access control model

In this paper, we present an approach to instrument a Simple Protocol And RDF Query Language query rewriting algorithm enforcing privacy preferences. The term instrument is used to mean supplying appropriate constraints. We show how to design a real and effective instrumentation process of a rewriting algorithm using an existing privacy-aware access control model like PrivOrBAC. We take into account various dimensions of privacy preferences through the concepts of consent, accuracy, purpose, and recipient. We implement and evaluate our process of privacy enforcement based on a healthcare scenario.