Abstract
The Internet of Things aims at connecting everything, ranging from individuals, organizations, and companies to things in the physical and virtual world. The digital identity has always been considered as the keystone for all online services and the foundation for building security mechanisms such as authentication and authorization. However, the current literature still lacks a comprehensive study on the digital identity management for the Internet of Things (IoT). In this paper, we firstly identify the requirements of building identity management systems for IoT, which comprises scalability, interoperability, mobility, security and privacy. Then, we trace the identity problem back to the origin in philosophy, analyze the Internet digital identity management solutions in the context of IoT and investigate recent surging blockchain sovereign identity solutions. Finally, we point out the promising future research trends in building IoT identity management systems and elaborate challenges of building a complete identity management system for the IoT, including access control, privacy preserving, trust and performance respectively.
Highlights
The Internet of Things aims at connecting everything ranging from individuals, collectives to things such as objects from physical and cyber worlds [1]
We point out the promising future research trends in building Internet of Things (IoT) identity management systems and elaborate challenges of building a complete identity management system for the IoT, including access control, privacy preserving, trust and performance respectively
We investigate the recent promising paradigm of the blockchain sovereign identity solutions, enumerate some projects and startups that are focusing on IoT identity problems, and point out challenges in building identity management systems for the Internet of Things
Summary
The Internet of Things aims at connecting everything ranging from individuals (human-beings), collectives (homes, organizations, companies, etc.) to things such as objects from physical and cyber worlds [1]. With the advent of IoT, existing identity management systems on the Internet cannot be directly transplanted to IoT environments due to some native IoT characteristics such as scalability, interoperability, and mobility. Diversity and heterogeneity lead to interoperability problems, unifying all identities of IoT objects from different manufactures, vendors, communities and standard groups has been considered to be an impossible mission. The Internet of Things calls for a brand new identity management paradigm to solve the existing identity security and privacy concerns on the Internet and take into account the native IoT unconventional characteristics. We investigate the recent promising paradigm of the blockchain sovereign identity solutions, enumerate some projects and startups that are focusing on IoT identity problems, and point out challenges in building identity management systems for the Internet of Things
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