Abstract
Identity management is a fundamental feature of Internet of Things (IoT) ecosystem, particularly for IoT data access control. However, most of the actual works adopt centralized approaches, which could lead to a single point of failure and privacy issues that are tied to the use of a trusted third parties. A consortium blockchain is an emerging technology that provides a neutral and trustable computation and storage platform that is suitable for building identity management solutions for IoT. This paper proposes a lightweight architecture and the associated protocols for consortium blockchain-based identity management to address privacy, security, and scalability issues in a centralized system for IoT. Besides, we implement a proof-of-concept prototype and evaluate our approach. We evaluate our work by measuring the latency and throughput of the transactions while using different query actions and payload sizes, and we compared it to other similar works. The results show that the approach is suitable for business adoption.
Highlights
The Internet of Things (IoT) is a network of devices, where they communicate and interact with the surrounding
We did not consider a large number of sensors and services as the Hyperledger fabric showed an excellent scalability performance [20]
All of the sensors and services in the smart home have to register to the distributed identity network once and authenticate each time they react with another object
Summary
The Internet of Things (IoT) is a network of devices (e.g., sensors), where they communicate and interact with the surrounding. With the fast growth of applications and services designed for IoT, communication and interaction are becoming a challenge due to the massive number of connected devices and the lack of a robust dynamic identity management solution [1,2]. Identity management of things is allocating identifiers to IoT physical and logical entities from motion, and temperature sensors to scrolling and screen behavior trackers in phones enabling them to exchange data with the other entities effectively and securely, while taking the relationship and the lifecycle of entities, addressability, and authentication methods into consideration [3,4,5]. The identity management of things is a fundamental feature of IoT, notably many academic investigations proposed solutions and standards to tackle the different challenges of the IdM [6,7]. Scalability is another issue regarding the maintenance and infrastructure of identity management solutions
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