Secure and customizable software applications in embedded networks

Improved technology and economically feasible costs allow a widespread deployment of embedded systems in various application domains - ranging from integration into cars, industrial automation up to building automation. A sophisticated security architecture considering the challenging constraints on these systems and providing secure communication, secure software as well as physical security is needed. This paper presents an approach to allow untrusted, possible (intentional) malicious software to be executed securely on a low end embedded system. A proof of concept and an evaluation for a building automation system is given.