SAFIR: Secure access framework for IoT-enabled services on smart buildings

•We develop a SAFIR based on City explorer, which has been developed previously.•SAFIR extends City explorer functionalities with discovery and security modules.•We evaluate the discovery and authorization mechanisms.•Suitability of our platform for smart and secure buildings has been validated.

Recent advances on ubiquitous computing and communication technologies are enabling a seamless integration of smart devices in the Internet infrastructure, promoting a new generation of innovative and valuable services for people. Nevertheless, the potential of this resulting ecosystem may be threatened if security and privacy concerns are not properly addressed. In this work, we propose an ARM-compliant IoT security framework and its application on smart buildings scenarios, integrating contextual data as fundamental component in order to drive the building management and security behavior of indoor services accordingly. This framework is instantiated on a holistic platform called City explorer, which is extended with discovery and security mechanisms. Such platform has been validated in a reference smart building, where reasonable results of energy savings, services discovery and authorization are achieved.