Blockchain in Iot: A Brief Review

Matthew N. O.  Sadiku; Uwakwe C.  Chukwu; Janet O.  Sadiku

Authors

Matthew N. O. Sadiku Department of Electrical & Computer Engineering, Prairie View A&M University, Prairie View, TX USA
Uwakwe C. Chukwu Department of Engineering Technology, South Carolina State University, Orangeburg, SC, USA
Janet O. Sadiku Juliana King University, Houston, TX, USA

Keywords:

blockchain, Internet of things, applications, smart cities, smart homes

Abstract

The world is becoming more and more connected, while increased vulnerability comes with increased connectivity. The Internet of things (IoT) connects everyday physical devices and objects to the Internet, creating a web of interconnected devices that are exposed to hackers and vulnerable to attack. Due to the decentralized nature of blockchain, there is no central point of control, making it almost impossible to hack or tamper with. The combination of IoT with blockchain refers to the use of a cryptographically secure digital ledger to authenticate, store, and share data generated by connected IoT devices. Integrating blockchain with the Internet of things (IoT) can deliver numerous benefits, such as improving transparency, traceability, reliability, and automation. However, combining the two technologies also comes with challenges, including scalability, interoperability, and energy consumption. This paper provides a short review of the union of IoT and blockchain.