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Boxify: Full-fledged App Sandboxing for Stock Android
Michael Backes, Saarland University and Max Planck Institute for Software Systems (MPI-SWS); Sven Bugiel, Christian Hammer, Oliver Schranz, and Philipp von Styp-Rekowsky, Saarland University
We present the first concept for full-fledged app sandboxing on stock Android. Our approach is based on application virtualization and process-based privilege separation to securely encapsulate untrusted apps in an isolated environment. In contrast to all related work on stock Android, we eliminate the necessity to modify the code of monitored apps, and thereby overcome existing legal concerns and deployment problems that rewriting-based approaches have been facing. We realize our concept as a regular Android app called Boxify that can be deployed without firmware modifications or root privileges. A systematic evaluation of Boxify demonstrates its capability to enforce established security policies without incurring a significant runtime performance overhead.
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