  Through the increasing interconnection between various systems, the need for
confidential systems is increasing. Confidential systems share data only with
authorized entities. However, estimating the confidentiality of a system is
complex, and adjusting an already deployed software is costly. Thus, it is
helpful to have confidentiality analyses, which can estimate the
confidentiality already at design time. Based on an existing data-flow-based
confidentiality analysis concept, we reimplemented a data flow analysis as a
Java-based tool. The tool uses the software architecture to identify access
violations based on the data flow. The evaluation for our tool indicates that
we can analyze similar scenarios and scale for certain scenarios better than
the existing analysis.
