Toward secure and efficient attestation for highly dynamic swarms

Remote Attestation (RA) has been proven to be a powerful security service to check the legitimacy of the software configuration (e.g., running software and data) of devices. In recent years, advances in trusted computing, made possible to extend the use of RA also to embedded and Internet of Things (IoT) devices. The massive scale of IoT deployments poses scalability challenges to RA. Recently, researchers proposed efficient protocols for collective network attestation, i.e., efficient attestation of a whole network of interconnected embedded devices; however, most of these solutions are either costly, or simply unsuitable for highly dynamic networks. This paper presents our ongoing effort in the definition of an efficient, scalable and secure solution for collective attestation of potentially large and highly dynamic networks of tiny devices.