1,304 research outputs found

    An end-to-end bidirectional authentication system for pallet pooling management through blockchain internet of things (BIoT)

    Get PDF
    Pallet pooling is regarded as a sustainable and cost-effective measure for the industry, but it is challenging to advocate due to weak data and pallet authentication. In order to establish trust between end-users and pallet pooling services, the authors propose an end-to-end, bidirectional authentication system for transmitted data and pallets based on blockchain and internet-of-things (IoT) technologies. In addition, secure data authentication fosters the pallet authenticity in the whole supply chain network, which is achieved by considering the tag, location, and object-specific features. To evaluate the object-specific features, the scale invariant feature transform (SIFT) approach is adopted to match key-points and descriptors between two pallet images. According to the case study, it is found that the proposed system provides a low bandwidth blocking rate and a high probability of restoring complete data payloads. Consequently, positive influences on end-user satisfaction, quality of service, operational errors, and pallet traceability are achieved through the deployment of the proposed system

    Blockchain-based Provenance Solution for Handcrafted Jewellery

    Get PDF
    Käsitsi tehtud ehete valmistamiseks kasutatakse tootmismasinate asemel inimeste kätetööd. Kui masinate poolt tehtud ehted on samasugused, odavad ja kergesti kättesaadavad, siis käsitsi valmistatud ehted on ainulaadsed ja küllaltki kallid. Seda eriti siis, kui tegemist on tuntud käsitöölise või disaineriga. Käesolev tehnoloogiaajastu on tõstnud tarbijate teadlikkust ning inimesed on valmis rohkem maksma tõestatud päritoluga toodete eest. Samuti soovivad tootjad oma töö eest saada tunnustatud ja omada selle õigusi. Praegused lahendused on pärituolu osas poolikud ning see võimaldab tarneahelal olla läbipaistmatu ning seetõttu kõrvale hiilida läbipaistvusest ning jälgitavusest. Seetõttu on hüppeliselt kasvanud võltstoodangu arv, mis toob kaasa majandusliku ja keskkondliku kahju, terviseriskid, valdkonna halva maine ning rikutud usalduse. Käesolev dissertatsioon vaatleb ja selgitab plokiahela tehnoloogial põhinevaid lahendusi ja võimalusi taustakontrolli tegemiseks ning teostab Ethereumi plokiahelal põhineva lahenduse käsitööehete päritolu kontrolliks. Uurimuse tulemus aitab kaasa taustakontrollimehhanismide arengule ning aitab seda rakendada ülemaailmse tarneahela läbispaistvamaks muutmisel.Handcrafted jewellery involves use of hand labour rather than manufacturing machinery. Unlike manufactured jewellery which is similarly crafted, cheap and easy to find, handcrafted jewellery tend to be uniquely crafted and fairly expensive, especially when it is attributed to a well known artisan or designer. The current information age has birthed a new era of conscious consumers who are willing to pay more for products with proven origins. Likewise, creators desire to be rightfully attributed and acknowledged for their work. However, the partial implementation of provenance by current solutions has encouraged opaque supply chains that hinder transparency and traceability. For this reason, there has been a rapid increase in counterfeit products, unprecedented economic loss, environmental degradation, health risks, increase in defamation cases, and broken trust. In this thesis, we review related provenance solutions using blockchain technology, identify key provenance features and implement a provenance solution for handcrafted jewellery on Ethereum blockchain. The output of this research can be used towards the development of provenance as a subject and its implementation in global supply chains

    Supply chain traceability using blockchain

    Get PDF
    Mestrado em Gestão MBARastreabilidade é a capacidade de rastrear a origem, a história e a distribuição de produtos numa cadeia logística. Para implementar rastreabilidade completa, é crucial estabelecer uma cadeia de custódia, normalmente definida como uma sequência de procedimentos que valida a propriedade e o controle de produtos ao longo da cadeia de logística. No mercado atual globalizado, as cadeias de logística podem abranger um grande número de países e fronteiras e exigir a interoperabilidade de numerosas organizações. Esta vastidão e complexidade impacta a competitividade dos negócios e dificulta a segurança, e a transparência da cadeia de logística. A implementação da rastreabilidade é fundamental para que as organizações possam posteriormente demonstrar a rastreabilidade, proveniência e integridade e conformidade do produto. A tecnologia Blockchain, com os seus atributos de descentralização, transparência e imutabilidade, tem sido apontada como destinada a revolucionar vários setores, com aplicação ao gerenciamento de cadeias de logística. O presente estudo começa pela revisão da literatura publicada para encontrar aspetos que influenciam o problema e segue a Metodologia de Pesquisa de Projeto para analisar os requisitos e propor uma solução para um sistema de gestão de cadeia de logística com melhor rastreabilidade. Os resultados da tese são artefactos de arquitetura, incluindo um contracto inteligente para Ethereum e um sistema de autenticação baseado em certificados, que permitem a implementação de um sistema de cadeia de logística suportado em Ethereum Blockchain que providencia aos seus utilizadores e ao consumidor final, as funcionalidades de proveniência, rastreabilidade e cadeia de custódia.Traceability is the ability to trace the origin, processing history, and the distribution of products in a Supply chain. In order to implement a complete traceability system, it is crucial to establish a chain of custody. Chain of Custody is typically defined as a sequence of procedures that validates the ownership and control of products along the supply chain. In the current global marketplace supply chains can span a huge number of countries and require interoperation of a multitude of organizations. This vastness of supply chains impacts business competitiveness since it adds complexity and can difficult securing traceability, chain of custody and transparency. In this work it is proposed a complete approach for organizations to be able to demonstrate traceability, provenance (proof of origin) and product integrity and compliance. Blockchain technology with its attributes of decentralization, transparency and immutability has been touted to revolutionize several industries, and most recently has been proposed for supply chain management (SCM). The present study reviews the published literature to find the aspects that influence the problem and then follows the Design Science Research Methodology to analyze the requirements and propose a solution to a more complete traceability in SCMs. The results of this thesis were architectural artifacts, including an Ethereum SC (Smart Contract) and a certificate-based authentication system. These deliverables would allow implementation of a supply chain system over the Ethereum Blockchain that can provide decentralized and trustful assurance of the provenance, chain of custody and traceability functionalities for the participants and consumers.info:eu-repo/semantics/publishedVersio

    Internet of robotic things : converging sensing/actuating, hypoconnectivity, artificial intelligence and IoT Platforms

    Get PDF
    The Internet of Things (IoT) concept is evolving rapidly and influencing newdevelopments in various application domains, such as the Internet of MobileThings (IoMT), Autonomous Internet of Things (A-IoT), Autonomous Systemof Things (ASoT), Internet of Autonomous Things (IoAT), Internetof Things Clouds (IoT-C) and the Internet of Robotic Things (IoRT) etc.that are progressing/advancing by using IoT technology. The IoT influencerepresents new development and deployment challenges in different areassuch as seamless platform integration, context based cognitive network integration,new mobile sensor/actuator network paradigms, things identification(addressing, naming in IoT) and dynamic things discoverability and manyothers. The IoRT represents new convergence challenges and their need to be addressed, in one side the programmability and the communication ofmultiple heterogeneous mobile/autonomous/robotic things for cooperating,their coordination, configuration, exchange of information, security, safetyand protection. Developments in IoT heterogeneous parallel processing/communication and dynamic systems based on parallelism and concurrencyrequire new ideas for integrating the intelligent “devices”, collaborativerobots (COBOTS), into IoT applications. Dynamic maintainability, selfhealing,self-repair of resources, changing resource state, (re-) configurationand context based IoT systems for service implementation and integrationwith IoT network service composition are of paramount importance whennew “cognitive devices” are becoming active participants in IoT applications.This chapter aims to be an overview of the IoRT concept, technologies,architectures and applications and to provide a comprehensive coverage offuture challenges, developments and applications

    Blockchain-based distributive auction for relay-assisted secure communications

    Get PDF
    Physical layer security (PLS) is considered as a promising technique to prevent information eavesdropping in wireless systems. In this context, cooperative relaying has emerged as a robust solution for achieving PLS due to multipath diversity and relatively lower transmission power. However, relays or the relay operators in the practical environment are unwilling for service provisioning unless they are incentivized for their cost of services. Thus, it is required to jointly consider network economics and relay cooperation to improve system efficiency. In this paper, we consider the problem of joint network economics and PLS using cooperative relaying and jamming. Based on the double auction theory, we model the interaction between transmitters seeking for a particular level of secure transmission of information and relay operators for suitable relay and jammer assignment, in a multiple source-destination networks. In addition, theoretical analyses are presented to justify that the proposed auction mechanism satisfies the desirable economic properties of individual rationality, budget balance, and truthfulness. As the participants in the traditional centralized auction framework may take selfish actions or collude with each other, we propose a decentralized and trustless auction framework based on blockchain technology. In particular, we exploit the smart contract feature of blockchain to construct a completely autonomous framework, where all the participants are financially enforced by smart contract terms. The security properties of the proposed framework are also discussed

    The Applications of the Internet of things in the Medical Field

    Get PDF
    The Internet of Things (IoT) paradigm promises to make “things” include a more generic set of entities such as smart devices, sensors, human beings, and any other IoT objects to be accessible at anytime and anywhere. IoT varies widely in its applications, and one of its most beneficial uses is in the medical field. However, the large attack surface and vulnerabilities of IoT systems needs to be secured and protected. Security is a requirement for IoT systems in the medical field where the Health Insurance Portability and Accountability Act (HIPAA) applies. This work investigates various applications of IoT in healthcare and focuses on the security aspects of the two internet of medical things (IoMT) devices: the LifeWatch Mobile Cardiac Telemetry 3 Lead (MCT3L), and the remote patient monitoring system of the telehealth provider Vivify Health, as well as their implementations

    From truth to trust: the impact of blockchain traceability on trust in product authenticity

    Get PDF
    In the global marketplace, customers are increasingly unaware of the source, provenance, and authenticity of products. Early research has shown that the introduction of blockchain technology into the supply chain area can make it more transparent and trustworthy. As a platform that supports distributed, cryptographically secure, auditable transactions, blockchain has expanded from the domain of digital cryptocurrency into the domain of physical asset provenance and ownership tracking and tracing. This research examines blockchain support of trust in product authenticity adopting a two-paper dissertation format. In the first conceptual paper, I develop a conceptual framework on blockchain technology\u27s unique features and characteristics and how it can boost trust in product authenticity. The second paper adopts the conceptual framework to test through a vignette experiment the effects of blockchain traceability, product identification, and the interaction between them on trust in product origin authenticity. Academics can use this research to develop new instruments to inform practice about how blockchain can boost trust in product authenticity. Results from this study can inform managers considering investments into blockchain solutions and unique product identification as a customer product authenticity, brand protection, or anti-counterfeiting strategy
    corecore