Blockchain technology is growing day by day and getting more courtesy from researchers because of its magical services, solutions, and security concerns. The blockchain-based Internet of Things (B-IoT) is considered as revaluated IoT due to blockchain architecture, service models, security, and key privacy concerns. In the direction of the security and privacy enhancement of the Internet of Things (IoT), this book focuses on the fundamentals of Blockchain technology and various functionalities of blockchain in terms of implementation such as immutability, transparency, distributed ledger, and...