  The concept of Industry 4.0 is a newly emerging focus of research throughout
the world. However, it has lots of challenges to control data, and it can be
addressed with various technologies like Internet of Things (IoT), Big Data,
Artificial Intelligence (AI), Software Defined Networking (SDN), and Blockchain
(BC) for managing data securely. Further, the complexity of sensors,
appliances, sensor networks connecting to the internet and the model of
Industry 4.0 has created the challenge of designing systems, infrastructure and
smart applications capable of continuously analyzing the data produced.
Regarding these, the authors present a distributed Blockchain-based security to
industry 4.0 applications with SDN-IoT enabled environment. Where the
Blockchain can be capable of leading the robust, privacy and confidentiality to
our desired system. In addition, the SDN-IoT incorporates the different
services of industry 4.0 with more security as well as flexibility.
Furthermore, the authors offer an excellent combination among the technologies
like IoT, SDN and Blockchain to improve the security and privacy of Industry
4.0 services properly. Finally , the authors evaluate performance and security
in a variety of ways in the presented architecture.
