Abstract
The Internet of Things (IoT) is increasingly a reality today. Nevertheless, some key challenges still need to be given particular attention so that IoT solutions further support the growing demand for connected devices and the services offered. Due to the potential relevance and sensitivity of services, IoT solutions should address the security and privacy concerns surrounding these devices and the data they collect, generate, and process. Recently, the Blockchain technology has gained much attention in IoT solutions. Its primary usage scenarios are in the financial domain, where Blockchain creates a promising applications world and can be leveraged to solve security and privacy issues. However, this emerging technology has a great potential in the most diverse technological areas and can significantly help achieve the Internet of Things view in different aspects, increasing the capacity of decentralization, facilitating interactions, enabling new transaction models, and allowing autonomous coordination of the devices. The paper goal is to provide the concepts about the structure and operation of Blockchain and, mainly, analyze how the use of this technology can be used to provide security and privacy in IoT. Finally, we present the stalker, which is a selfish miner variant that has the objective of preventing a node to publish its blocks on the main chain.
Highlights
Internet of Things (IoT) and Blockchain are considered emerging concepts and technologies
At the same time they transform concepts and create new possibilities, each in their respective scenarios, and there is an opportunity to create applications that can share the intrinsic characteristics of both, exploring how the IoT can benefit from the decentralized nature of the Blockchain
This paper aims to familiarize newly interested, as well as updating the readers who have some prior knowledge of Blockchain, and this includes the recent applications in security and privacy, and how their use can leverage the IoT
Summary
Internet of Things (IoT) and Blockchain are considered emerging concepts and technologies. There is a demand for security solutions that are capable of providing equivalent levels of security for various types of devices and demands mechanisms capable of audit and access control in these environments In this context that Blockchain falls, because this technology can be used to authenticate, authorize, and audit data generated by devices. Blockchain ( known as “the protocol of trust”) is a concept that aims to decentralization as a security measure, has a function to create a global index for all transactions that occur in a given network, and makes them immutable. It works as a public, shared, and universal ledger.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
