The PRECIOSA demonstration video provides information on PeRA, the
Privacy-enforcing Runtime Architecture which was one of the major
results of the project. PeRA is the middleware for privacy data
management in Intelligent Transportation Systems (ITS). It manages
information from sensors, communication nodes, and other data sources.
Every data item is coupled with a privacy policy which defines privacy
requirements for processing and transmitting the data. PeRA evaluates
requests and policies in order to control the information flow in the
system, and to ensure compliant data processing and transmission.
The
demonstration video describes the PeRA architecture and presents the
final prototype based on Java and OSGi. The demonstration currently runs on two
laptops but PeRA was designed to be integrated in ITS nodes. The use case
demonstrates the information exchanged between a vehicle node and an ITS
service provider, for example a traffic control center.
In this case, the vehicle transmits Floating Car Data (FCD records)
to the back-end server via PeRA, where the FCD records are stored in an
encrypted data base together with their privacy policies. ITS
applications running on the back-end can request access to FCD records
for different purposes, for example to visualise the current traffic
state on a map. A request is accepted or not according to the privacy policies attached to the record.
The video demonstrates how a vehicle moving on the streets of a city sets its privacy policy and sends FCD data to a back-end server, and how the back-end server processes it.