Follow blockchain research across journals, conferences, and preprint repositories.
8,837 results · page 305 of 369
Amritraj Singh, Kelly Click, Reza M. Parizi, Qi Zhang · 6 authors
No abstract is available for this record.
Said El Kafhali, Chorouk Chahir, Mohamed Hanini, Khaled Salah
In this paper, we propose a novel architecture that utilizes features of Blockchain, fog computing, and cloud computing to manage IoT data. Blockchain allows to have a distributed peer-to-peer network in which non-trusting participants can interact with each other without a trusted intermediary or third party. We evaluate how this mechanism works to face the challenges of IoT with respect to multiple accessibility to IoT devises. We consider a Blockchain architecture in presence of edge computing layer. With fog or fog computing, the sensitive data can be analyzed locally instead of sending it to the cloud for analysis. Edge nodes can also keep track and control of the IoT devices that collect, analyze and store data. We show that this control can be better executed when Software Defined Network (SDN) and Network Functions Virtualization (NFV) are integrated into our process for optimal resource management. In this paper, we present our system architecture with a detailed description of the different interactions. We remark that the integration of Blockchain, IoT, and edge computing when coupled with SDN and NFV-enabled cloud infrastructure can bring to more superior and efficient platform for accessing, managing, and processing the huge influx of IoT data.
Joice Joseph, Keivan Navaie
The number of IoT devices is growing at an exponential rate.It is expected that by 2020, there will be approximately 30 billion internet-connected devices and 500 billion by 2030.Not only, does it increase security concerns but will give rise to interoperability issues.In this paper, the recently introduced Ethereum network will be utilised with respect to Internet of Things to create an infrastructure compatible with IoT devices.With an addition of an automated, immutable smart contract that will aid the interoperability of various devices through the heterogenousfriendly Ethereum network.The true potential of Ethereum, when combined with IoT, will be explored and demonstrated.Demonstrated through an implementation in which power will be provided to a room embedded with various IoT devices upon payment (in the form of rent) into a landlord's smart contract [1].
Imran Makhdoom, Ian Zhou, Mehran Abolhasan, Justin Lipman · 5 authors
No abstract is available for this record.
Ao Zhou, Qibo Sun, Jinglin Li
Summary In recent decades, newly emerging mobile applications and services are becoming increasingly resource hungry and computation intensive. Portable size mobile devices fall short in providing such services. Cloud computing has been a core computation technology to provide visualized resources in a scalable way for mobile services. However, the unpredictable network transmission latency makes cloud computing not efficient enough for time‐sensitive mobile services, which requires major changes in underlying computing platform. Mobile edge computing is widely known as one of the novel technologies has emerged in recent years to address this issue. For being impractical to construct huge edge cloud in network edge, edge clouds can still be overloaded in rush time. Offloading to near‐user facilities using device‐to‐device (D2D) or other technologies becomes an augmentation approach. However, how to manage the facilities/resources effectively become a new issue. In this paper, we proposed a resource management scheme named BCEdge based on blockchain in D2D‐assisted mobile edge computing. BCEdge is a reliable scheme that operates in a distributed way to relieve the load of edge clouds. We illustrate the advantages and technical details of BCEdge using flow charts and interaction charts. The experiment results validate the effectiveness of our scheme. Finally, we discuss the possible future extensions.
Yibo Huang, Li Jin, Zhihui Lu, Xin Zhou · 7 authors
Known as a distributed ledger, blockchain is becoming prevalent due to its decentralization, traceability and tamper resistance. Particularly, permissioned blockchain such as Hyperledger Fabric shows great application prospects as the infrastructure of IoT security, credit management, etc. Many cloud platforms like AWS, Azure, Oracle and IBM cloud currently provide blockchain as a service, in which tenants can quickly build permissioned blockchain and run smart contract based applications. However, the transactions throughput and scalability in the permissioned blockchain are not ideal, despite many optimization efforts in consensus protocol and parallel chain. Existing solutions still reveals some limitations like excessive CPU scheduling, inefficient block broadcast and high latency of initial blocks synchronization when new nodes join blockchain network. Inspired by the emerging RDMA (Remote Direct Memory Access) network, we propose BoR, an RDMA-based permissioned blockchain framework. By offloading the block transfer transaction into RDMA NICs, it can increase block broadcast speed and reduce block sync delay. We exploit the RDMA primitives to redesign the block synchronization protocol and accelerate DPoS (Delegated Proof of Stake) consensus process for higher throughput and lower latency in kernel-bypass manner. As demonstrated in our evaluation with different workloads, BoR with lower CPU utilization significantly outperforms the state-of-the-art EoS blockchain.
Raja Jalees ul Hussen Khan, Zainib Noshad, Atia Javaid, Maheen Zahid · 6 authors
No abstract is available for this record.
Abdul Mateen, Jawad Tanveer, Ashrafullah, Nasir Khan · 6 authors
No abstract is available for this record.
Tanzeela Sultana, Abdul Ghaffar, Muhammad Azeem, Zain Abubaker · 6 authors
No abstract is available for this record.
M. Dakshayini, B. V. Balaji Prabhu
No abstract is available for this record.
Víctor Garcia-Font
No abstract is available for this record.
Gabriel Hogan, Sigma Dolins, Izzet F. Senturk, Ioannis Fyrogenis · 8 authors
In this paper two contemporary technological novelties are combined to introduce the concept of a blockchain-based MaaS, with the aim of pinpointing where and how business value can be created through data-based services of such a system. Towards this purpose, an integrated version of the Business Model Canvas is deployed, combining the advantages of the Lean Canvas and the Ethics Canvas. The overview of data flows among the versatile system stakeholders are outlined to highlight the potential benefits for diverse industries through sharing and collaboration.
Asad Ullah Khan, Affaf Shahid, Fatima Tariq, Abdul Ghaffar · 7 authors
No abstract is available for this record.
Bong-Gyeol Choi, EuiSeob Jeong, Sangwoo Kim
As the number of Internet of Things (IoT) devices increases, services expand and illegal hacking and infringement methods become more sophisticated, an effective solution for blockchain technology is required as a fundamental solution to security threats. In this paper, we develop the security module of an IoT device based on blockchain technology that blocks hacking and information infringement and forms a multi-security blockchain system between the IoT device and the user device and we develop a user application. We contribute to addressing the security threats faced by IoT application services by developing a new method. In particular, we present some schemes for the development of a multi-security certification system based on blockchain for IoT security.
Zain Abubaker, Muhammad Usman Gurmani, Tanzeela Sultana, Shahzad Rizwan · 7 authors
No abstract is available for this record.
Tehreem Ashfaq, Muhammad Ahmed Younis, Shahzad Rizwan, Zahid Iqbal · 6 authors
No abstract is available for this record.
Atia Javaid, Maheen Zahid, Ishtiaq Ali, Raja Jalees ul Hussen Khan · 6 authors
No abstract is available for this record.
Hafiza Syeda Zainab Kazmi, Faiza Nazeer, Sahrish Mubarak, Seemab Hameed · 6 authors
No abstract is available for this record.
Keke Gai, Yulu Wu, Liehuang Zhu, Zijian Zhang · 5 authors
Contemporarily, two emerging techniques, blockchain and edge computing, are driving a dramatical rapid growth in the field of Internet-of-Things (IoT). Benefits of applying edge computing is an adoptable complementarity for cloud computing; blockchain is an alternative for constructing transparent secure environment for data storage/governance. Instead of using these two techniques independently, in this article, we propose a novel approach that integrates IoT with edge computing and blockchain, which is called blockchain-based Internet of Edge model. The proposed model, designed for a scalable and controllable IoT system, sufficiently exploits advantages of edge computing and blockchain to establish a privacy-preserving mechanism while considering other constraints, such as energy cost. We implement experiment evaluations running on Ethereum. According to our data collections, the proposed model improves privacy protections without lowering down the performance in an energy-efficient manner.
Iago Sestrem Ochôa, Luís Augusto Silva, Gabriel de Mello, Bruno Alves da Silva · 8 authors
With the popularization of the Internet-of-Things, various applications have emerged to make life easier. These applications generate a large amount of user data. Analyzing the data obtained from these applications, one can infer personal information about each user. Considering this, it is clear that ensuring privacy in this type of application is essential. To guarantee privacy various solutions exist, one of them is UbiPri middleware. This paper presents a decentralized implementation of UbiPri middleware using the Ethereum blockchain. Smart contracts were used in conjunction with a communication gateway and a distributed storage service to ensure users privacy. The results obtained show that the implementation of this work ensures privacy at different levels, data storage security, and performance regarding scalability in the Internet of Things environments.
Sang‐Young Lee
The biggest advantage of introducing blockchain is that it can deliver data to members while maintaining the security of medical data sensitive to personal privacy. That is, by using a blockchain in the ecosystem of medical information, it is possible to connect the insurer, the health care organization, and the patient. The blockchain provides health data efficiently and increases accuracy and efficiency when changing patient data through the health system. In addition, it improves the efficiency and control of patients' personal health data and increases the price transparency of pharmaceuticals and health services. So far, the healthcare industry has had strict regulations and policies to limit data security and personal privacy. Therefore, this paper has suggested the framework with functions to support clinical decision making more efficiently using blockchain technology and FHIR data standards. Basically, this framework is built on the FHIR, which is designed to be provided to patients. In addition, it complements and uses open key encryption technology and meets the key requirements required in interoperability functions, such as user identification/authentication, secure data exchange, and authorized data. In particular, it provides further secure data exchange method aiming access guarantee, consistent data format and system modularity. These instructions give you guidelines for preparing papers for
Stephen Ornes
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
Sen He, Wei Ren, Tianqing Zhu, Kim‐Kwang Raymond Choo
The role of the Industrial Internet of Things (IIoT) in critical infrastructure sectors, such as power, chemistry, and manufacturing, will be increasingly important as we move toward Industry 5.0. For example, IIoT devices are deployed in factories to help the manufacturing companies (e.g., automotive) gain in-depth insight into the various states of production, and thus improving production efficiency and achieving cost reductions. However, malicious code may compromise IIoT devices if either the devices are exposed to outside or unexposed inner devices are updated unauthentically. Due to their limited resources and features, it is challenging to implement strong security solutions for such embedded devices. In this article, we propose a blockchain-based software status monitoring system, called BoSMoS. The system is designed to monitor the software status of IIoT devices to detect and respond to identified malicious behaviors (e.g., intrusions). BoSMoS takes a snapshot of the statue of monitored software and monitors its file system calls. In order to ensure the software integrity information, we use blockchain as the distributed ledger to store a snapshot of software status. The blockchain network of BoSMoS can employ different consensus algorithms. We also evaluate the performance of BoSMoS, in terms of exception response delay, resistance performance to various intrusions, and scalability. The experimental results justify that BoSMoS is practical and sound. In addition, the evaluation of scalability and security demonstrates that the system can carry deployment of large-scale IIoT devices and can guarantee authenticated software updating, as well as detect unauthorized software status.
Óscar Lage
The extreme automation of our factories is necessary in order to face the Fourth Industrial Revolution. This new industrial paradigm will force our industries to manufacture much shorter and customized series at increasingly competitive prices, even tackling the manufacture of thousands of different configurations of a single base product. In order to achieve this, our production processes must have a flexibility in their configuration that has never been imagined before. This flexibility and ability to adapt automatically to demand are the essence of the Fourth Industrial Revolution and are part of the Western strategy to recover an industrial sector increasingly threatened by the Eastern production of large series at really competitive prices. Based on our participation in more than a dozen proofs of concept in the automotive, aeronautics, agri-food, or energy sectors, we describe the scenarios in which blockchain technology brings the greatest benefits to Industry 4.0. After finishing different experimentations, we carried out an in-depth analysis of the true added value of blockchain in the industry and contrasted our conclusions through interviews with more than 20 people in charge of innovation from different industries. As a result, we have obtained the principal four values of blockchain technology applied to Industry 4.0.