Research Area: Internet of Things
This paper presents a comprehensive survey of the existing blockchain protocols for the Internet of Things (IoT) networks. We start by describing the blockchains and summarizing the existing surveys that deal with blockchain technologies. Then, we provide an overview of the application domains of blockchain technologies in IoT, e.g., Internet of Vehicles, Internet of Energy, Internet of Cloud, Edge computing, etc. Moreover, we provide a classification of threat models, which are considered by blockchain protocols in IoT networks, into five main categories, namely identity-based attacks, manipulation-based attacks, cryptanalytic attacks, reputation-based attacks, and service-based attacks. In addition, we provide a taxonomy and a side-by-side comparison of the state-of-the-art methods toward secure and privacy-preserving blockchain technologies with respect to the blockchain model, specific security goals, performance, limitations, computation complexity, and communication overhead. Based on the current survey, we highlight open research challenges and discuss possible future research directions in the blockchain technologies for IoT.
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Author(s) Name: Mohamed Amine Ferrag; Makhlouf Derdour; Mithun Mukherjee; Abdelouahid Derhab; Leandros Maglaras; Helge Janicke
Journal name: IEEE Internet of Things Journal
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Publisher name: IEEE
DOI: 10.1109/JIOT.2018.2882794
Volume Information: Volume: 6, Issue: 2, April 2019, Page(s): 2188 - 2204
