Blockchain applications for Internet of Things (IoT): A review

Nowadays, Blockchain is very popular among industries to solve security issues of information systems. The Internet of Things (IoT) has security issues during multi-organization communication, and any organization approves no such robust framework. The combination of blockchain technology with IoT makes it more secure and solves the problem of multi-organization communication issues. There are many blockchain applications developed for the security of IoT, but these are only suitable for some types of IoT infrastructure. This paper introduces the architecture and case studies of blockchain applications. The application scenarios of the Blockchain combined with the Internet of Things, and finally discussed four common issues of the combination of the Blockchain and the Internet of Things.