A Fabric-Based Access Control Approach for the Internet of Things

• 1、School of Cyberspace Security, Beijing University of Posts and Telecommunications, BeiJing 100876

Abstract：While IoT technology facilitates social life, the risk of unauthorized access to data and resource sharing among IoT devices increases. Access control technology provides strong support for securing resources and services in the IoT environment. Blockchain-based IoT access control scheme solves the problem of single-point-of-failure in traditional schemes, but there are problems of inflexible calculation of access control privileges and coarse granularity of auditing the access behavior of resource requesters, which can not satisfy large-scale and dynamically changing IoT access requirements. In this paper, we propose a dynamic access control scheme for IoT that supports fine-grained auditing. The scheme designs access control policies based on attribute sets and version numbers in smart contracts, as well as an auditing method for the access frequency of resource requesters, realizing dynamic access control and fine-grained auditing of access behaviors.

Keywords： Basic Computer Science and Technology Access Control Internet of Things Blockchain Smart Contract