An IoT-Based Vending Machine Using Blockchain for Enhanced Security

Abstract

The Internet of Things (IoT) is an established technology changing the way of our daily lives. However, as its usage increases, the threat of utilizing them wrongly also increases. Blockchain technology, which provides strong security, is used to protect IoT devices from being hacked, helping solve the drawbacks of an IoT system. The automated vending machine works by distributing a variety of vended goods and helps provide disintermediation. The vending machine's primary goal is to speed up client service while minimizing human touch. In this paper, the development of a system for cashless payment is described. This helps vending companies with problems like cash handling, fake or slug currency, encashment, and change. The infrastructure of IoT vending machines, which is based on the blockchain network, is discussed thoroughly. Finally, a model has been provided for the security of the internet of things using blockchain.