Overview of Device Access Control in the IoT and its Challenges

(From the abstract)
This article introduces different architectural models for decentralized device access control, their security requirements and implications. Access control is a building block for the overall security of any communication system. When it comes to device-to-device communication, decentralized approaches for access control will allow governing a mass of devices in a scalable mode.

A common understanding and standardization of application-level access control is also primordial for the incoming era of cooperating devices in IoT.