A Distributed XACML based Access Control Architecture for IoT Systems

IoT (Internet of Things) is the new technological revolution that enables the high connectivity of intelligent objects or devices both to each other or/and to humans. However, the major difficulty found in the use of this IoT technology is the lack of networking reference architectures and standards for this new paradigm. Moreover, security and privacy protection are foremost important issue to gain trust of IoT users. In this paper, we firstly present a comparative study of IoT security architectures previously proposed in the literature, then we investigate different works done in the field, based on the CIA triad (Confidentiality, Integrity and Availability) and the associated algorithms. The last part of this paper is devoted to study the proposed distributed model in order to face the IoT access control problems using the XACML language.