Access Control Policies for Relational Databases in Data Exchange Process

Nowadays, many organizations rely on database systems as the key data management technology for a large variety of tasks. This wide use of such systems involved that security breaches and unauthorized disclosures threat those systems especially when the data is exchanged between several parts in a distributed system. Consequently, access control must adapt to this exchange process to maintain data privacy. In this paper, the challenge is to design an approach to deal with access control policies in a context of data exchange between relational databases. In fact, the main problem that we are dealing with is that given a set of policies attached to a source schema and a set of mapping rules to a target schema, the question is how the policies will pass from the source schema to the target schema and what are the policies that will be attached to the target schema to comply with the set of source policies. For that purpose, we propose in this paper our methodology called Policies-generation.