For more details, please have a look at the paper.
This research is based on technology invented and developed at Backes SRT GmbH and was published in cooperation with the Center for Information Security, Privacy and Accountability (CISPA) at Saarland University.
The Boxify framework will be made freely available for academic and non-commercial use. We are working hard to turn our research prototype of Boxify into usable technology suitable for other academic research projects. However, we are not quite there yet.
UPDATE: Because of ongoing business negotiations, the public release of the source code has been postponed by a few weeks.