scispace - formally typeset
Open AccessJournal ArticleDOI

Blockchains and Smart Contracts for the Internet of Things

Reads0
Chats0
TLDR
The conclusion is that the blockchain-IoT combination is powerful and can cause significant transformations across several industries, paving the way for new business models and novel, distributed applications.
Abstract
Motivated by the recent explosion of interest around blockchains, we examine whether they make a good fit for the Internet of Things (IoT) sector. Blockchains allow us to have a distributed peer-to-peer network where non-trusting members can interact with each other without a trusted intermediary, in a verifiable manner. We review how this mechanism works and also look into smart contracts—scripts that reside on the blockchain that allow for the automation of multi-step processes. We then move into the IoT domain, and describe how a blockchain-IoT combination: 1) facilitates the sharing of services and resources leading to the creation of a marketplace of services between devices and 2) allows us to automate in a cryptographically verifiable manner several existing, time-consuming workflows. We also point out certain issues that should be considered before the deployment of a blockchain network in an IoT setting: from transactional privacy to the expected value of the digitized assets traded on the network. Wherever applicable, we identify solutions and workarounds. Our conclusion is that the blockchain-IoT combination is powerful and can cause significant transformations across several industries, paving the way for new business models and novel, distributed applications.

read more

Citations
More filters
Proceedings ArticleDOI

Defining granularity levels for supply chain traceability based on IoT and blockchain

TL;DR: A generic framework for defining granularity levels based on product's unique characteristics, supply chain processes and stakeholders engagement is proposed and different levels of granularity are determined by using smart contracts within a blockchain-enabled supply chain traceability architecture.
Journal ArticleDOI

Blockchain for aerospace and defense: Opportunities and open research challenges

TL;DR: This survey studies how blockchain features, platforms, and architectures can be leveraged to reshape and revolutionize modern aerospace and defense ecosystems and applications, and compares the existing blockchain platforms to analyze their suitability and applicability for aerospace anddefense applications.
Journal ArticleDOI

Early mover (dis)advantages and knowledge spillover effects on blockchain startups’ funding and innovation performance

TL;DR: In this article, the authors examined how the entry timing of a startup in the blockchain industry affects its funding attraction from venture capitals and innovation performance, and whether the startup's knowledge spillover activities moderate the relationship between its entry timing and subsequent performance.
Journal ArticleDOI

Sustainable Supply Chains with Blockchain, IoT and RFID: A Simulation on Order Management

TL;DR: The purpose of this study is to highlight how order and disruption events processes can be improved with the adoption of emerging technologies and how this reflects on the improvement of sustainability aspects.
Proceedings ArticleDOI

Dependable IoT Using Blockchain-Based Technology

TL;DR: This paper presents some discussion about the usage of blockchain technology in IoT environments and proposes a layer model of blockchains for IoT, and presents open issues and future trends about blockchain in IoT.
References
More filters
Journal ArticleDOI

The Byzantine Generals Problem

TL;DR: The Albanian Generals Problem as mentioned in this paper is a generalization of Dijkstra's dining philosophers problem, where two generals have to come to a common agreement on whether to attack or retreat, but can communicate only by sending messengers who might never arrive.
Book ChapterDOI

The Byzantine generals problem

TL;DR: In this article, a group of generals of the Byzantine army camped with their troops around an enemy city are shown to agree upon a common battle plan using only oral messages, if and only if more than two-thirds of the generals are loyal; so a single traitor can confound two loyal generals.
Book ChapterDOI

The Sybil Attack

TL;DR: It is shown that, without a logically centralized authority, Sybil attacks are always possible except under extreme and unrealistic assumptions of resource parity and coordination among entities.
Proceedings ArticleDOI

Practical Byzantine fault tolerance

TL;DR: A new replication algorithm that is able to tolerate Byzantine faults that works in asynchronous environments like the Internet and incorporates several important optimizations that improve the response time of previous algorithms by more than an order of magnitude.
Proceedings Article

In search of an understandable consensus algorithm

TL;DR: Raft is a consensus algorithm for managing a replicated log that separates the key elements of consensus, such as leader election, log replication, and safety, and it enforces a stronger degree of coherency to reduce the number of states that must be considered.
Related Papers (5)