【Author】 Wang, Yuntao Su, Zhou Ni, Jianbing Zhang, Ning Shen, Xuemin

【Source】IEEE COMMUNICATIONS SURVEYS AND TUTORIALS

【影响因子】33.840

【主题类别】

区块链应用-物联网-

【Abstract】The terrestrial networks face the challenges of severe cost inefficiency and low feasibility to provide seamless services anytime and anywhere, especially in the extreme or hotspot areas (e.g., disaster areas, mountains, and oceans) due to limited service coverage and capacity. The integration of multi-dimensional networks consisting of space, air, and ground layers is expected to provide solutions in delivering cost-effective and ubiquitous Internet of things (IoT) services for billions of users and interconnected smart devices. Autonomous data collection, exchange, and processing across different network segments with minimal human interventions in space-air-ground IoT (SAG-IoT) can bring great convenience to consumers, however, it also suffers new attacks from intruders. Severe privacy invasion, reliability issues, and security breaches of SAG-IoT can hinder its wide deployment. The emerging blockchain holds great potentials to address the security concerns in SAG-IoT, thanks to its prominent features of decentralization, transparency, immutability, traceability, and auditability. Despite of the benefits of blockchain-empowered SAG-IoT, there exist a series of fundamental challenges in terms of efficiency and regulation due to the intrinsic characteristics of SAG-IoT (e.g., heterogeneity, time-variability, and poor interoperability) and the limitations of existing blockchain approaches (e.g., capacity and scalability). This article presents a comprehensive survey of the integration of blockchain technologies for securing SAG-IoT applications. Specifically, we first discuss the architecture, characteristics, and security threats of SAG-IoT systems. Then, we concentrate on the promising blockchain-based solutions for SAG-IoT security. Next, we discuss the critical challenges when integrating blockchain in SAG-IoT security services and review the state-of-the-art solutions. We further investigate the opportunities of blockchain in artificial intelligence and beyond 5G networks and provide open research directions for building future blockchain-empowered SAG-IoT systems.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Internet of Things; Security; Reliability; Privacy; Vehicle dynamics; Smart devices; Blockchain; space-air-ground integrated network (SAGIN); Internet of Things (IoT); security; privacy; trust; network optimization

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.1109/COMST.2021.3131711

【Author】 Huo, Ru Zeng, Shiqin Wang, Zhihao Shang, Jiajia Chen, Wei Huang, Tao Wang, Shuo Yu, F. Richard Liu, Yunjie

【Source】IEEE COMMUNICATIONS SURVEYS AND TUTORIALS

【影响因子】33.840

【主题类别】

区块链应用-实体经济-云服务

【Abstract】With rapid development of enabling technologies such as Internet of Things, robotics, and big data, the fourth industrial revolution known as "Industry 4.0" (I4.0) has become a great opportunity for productivity innovation around the world. Industrial Internet of Things (IIoT), as a typical implication of Cyber-Physical Systems (CPS) in I4.0 era, has attracted significant attention. It aims at optimizing resources and improving production efficiency for manufacturing industry through deep interconnection of physical equipment, wide collection of multi-dimensional data, intelligent awareness of environment and automatic control. Blockchain is a kind of distributed ledger technology and has features including decentralization, anti-tamper, transparency, anonymity, and contract-autonomy. These features are helpful to improve the services and promote the development of IIoT. In this paper, we provide a comprehensive survey on the literatures applying blockchain technology into IIoT. We firstly introduce the related works and background knowledge. And then, the motivations and benefits for applying blockchain into IIoT are discussed in detail. Furthermore, based on the layered architecture of blockchain we summarized in the previous work, we outline the research framework of blockchain in IIoT. Meanwhile, the related application research is presented from the perspectives of devices security, data collection and sharing, and industrial application. Moreover, we explore the technical requirements of blockchain platforms in IIoT applications. Finally, some challenges and future directions on blockchain in IIoT, as well as broader perspectives, are concluded for further study.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Tutorials; I4; 0; IIoT; blockchain; decentralization; security; optimization; application; platform; identity resolution system; digital twins

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 综述

【DOI】 10.1109/COMST.2022.3141490

【Author】 Zhang, Liang Qiu, Feiyang Hao, Feng Kan, Haibin

【Source】IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY CCF-A

【影响因子】7.231

【主题类别】

区块链技术-密码学-

【Abstract】Distributed key generation (DKG) is widely used in multi-party computation and decentralized applications. DKG has two phases, namely sharing and reconstruction. Most of the prior DKG protocols need at least 2 rounds for the sharing phase, in case some party raises a dispute. The existing 1-round DKG protocol [Fouque et at., PKC'01], built based on a publicly verifiable secret sharing (PVSS) scheme, assumes a static adversary model and its reconstruction phase requires O(n(2)) communication complexity. Motivated by the observation that a ciphertext-policy attribute-based encryption (CP-ABE) scheme hides secret sharing (SS) in ciphertext, we utilize decentralized CP-ABE to achieve the first adaptively secure 1-round DKG protocol. Firstly, a CP-ABE scheme enables the ciphertexts in DKG to be externally decrypted, making our protocol superior to the PVSS-based DKG protocol in reconstruction. The communication and computation complexities are both lowered to O(n) thanks to the constant-sized decryption key and the proposed batch decryption. The use of CP-ABE also makes our DKG protocol storage-friendly, i.e., the parties store no ciphertext after the sharing phase. Secondly, we add non-interactive zero-knowledge (NIZK) proofs to make the CP-ABE ciphertext publicly verifiable by leveraging the sigma protocol and the Fiat-Shamir heuristic. Thirdly, we demonstrate our protocol's feasibility by presenting a proof-of-concept implementation over Ethereum, which is used as a public channel and a trustworthy computation platform. The implementation is a non-trivial task due to Ethereum's incompatibility with the bilinear mapping group.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Distributed key generation; ethereum; smart contract; attribute-based encryption; zero-knowledge proofs; sigma protocol

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.1109/TIFS.2022.3152356

【Author】 Wang, Lixing He, Yulin Wu, Zhenning

【Source】FOODS

【影响因子】5.561

【主题类别】

区块链应用-产品溯源-

【Abstract】Tracing food products along the entire supply chain is important for achieving better management of food products. Traditionally, centralized traceability systems have been developed for such purposes. One major drawback of this approach is that different users of the supply chain have their own systems with their own complexities and distinct features; thus, the interaction among them creates challenges when implementing a single centralized system. Therefore, a decentralized traceability system is favorable for tracing food products along the supply chain. In this study, we develop a supply chain traceability system framework based on blockchain and radio frequency identification (RFID) technology. The system consists of a decentralized blockchain-enabled data storage platform for data management and an RFID system at the packaging level for data collection and storage. We applied a consortium blockchain to the application. Fabric 2.0 in Hyperledger was chosen as the development platform. The proposed blockchain-enabled platform can provide decentralized data management and its underlying algorithm can guarantee data security. The system includes a creatively designed blockchain-enabled data structure in the RFID tag. When people scan the tag, the relevant information is written in the tag as a block linked to the previous blocks; simultaneously, the information is transmitted to the blockchain platform and recorded on the platform. No battery is required and the system works when there is an RFID reader nearby. The usage conditions included shipment, stocking, and storage. The RFID tag can be directly attached to paper packaging. This approach embeds the blockchain technique into the RFID tag and develops a corresponding system. The new traceability system has the potential to simplify the tracking of products and can be scaled for industrial use.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain; RFID; food package; food supply chain

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.3390/foods11050744

【Author】 Chang, Yuxia Fang, Chen Sun, Wenzhuo

【Source】COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE

【影响因子】3.120

【主题类别】

区块链应用--

【Abstract】The development of artificial intelligence and worldwide epidemic events has promoted the implementation of smart healthcare while bringing issues of data privacy, malicious attack, and service quality. The Medical Internet of Things (MIoT), along with the technologies of federated learning and blockchain, has become a feasible solution for these issues. In this paper, we present a blockchain-based federated learning method for smart healthcare in which the edge nodes maintain the blockchain to resist a single point of failure and MIoT devices implement the federated learning to make full of the distributed clinical data. In particular, we design an adaptive differential privacy algorithm to protect data privacy and gradient verification-based consensus protocol to detect poisoning attacks. We compare our method with two similar methods on a real-world diabetes dataset. Promising experimental results show that our method can achieve high model accuracy in acceptable running time while also showing good performance in reducing the privacy budget consumption and resisting poisoning attacks.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】

【发表时间】2021

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.1155/2021/4376418

【Author】 Lopez-Pimentel, Juan Carlos Morales-Rosales, Luis Alberto Algredo-Badillo, Ignacio

【Source】APPLIED SCIENCES-BASEL

【影响因子】2.838

【主题类别】

区块链技术-数据存储-

【Abstract】The current digital age, mainly characterized by an economy based upon information technology, demands a data integrity service, even more so because organizations and companies are migrating their services over the cloud. This is not a simple task; it is cumbersome since traditional schemes in databases could be subject to modifications. However, it can be solved using blockchain technology. This paper provides a data integrity verifiability architecture for cloud systems based on blockchain. The architecture provides a mechanism to store events (as logs) within a blockchain platform from any cloud system. Users can then consult data integrity through a microservice, acting as an intermediate server that carries out a set of verification steps within the blockchain, which confirms the integrity of a previously stored log. Our architecture takes advantage of the blockchain strength concerning integrity, providing a traceability track of the stored logs. A prototype system and a case study were implemented based on the proposed architecture. Our experimental results show that the proposed decentralized architecture can be adapted to cloud existing systems that were born without blockchain technology and require a modular and scalable audit characteristic.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain; integrity; audit; microservices; cloud systems

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.3390/app12052754

【Author】 Lee, Hyeonju Woo, Donghyun Yu, Sunjin

【Source】APPLIED SCIENCES-BASEL

【影响因子】2.838

【主题类别】

区块链应用-教育领域-

【Abstract】Due to the COVID-19 pandemic, there has been a shift from in-person to remote education, with most students taking classes via video meetings. This change inhibits active class participation from students. In particular, video education has limitations in replacing practical classes, which require both theoretical and empirical knowledge. In this study, we propose a system that incorporates virtual reality and metaverse methods into the classroom to compensate for the shortcomings of the existing remote models of practical education. Based on the proposed system, we developed an aircraft maintenance simulation and conducted an experiment comparing our system to a video training method. To measure educational effectiveness, knowledge acquisition, and retention tests were conducted and presence was investigated via survey responses. The results of the experiment show that the group using the proposed system scored higher than the video training group on both knowledge tests. As the responses given to the presence questionnaire confirmed a sense of spatial presence felt by the participants, the usability of the proposed system was judged to be appropriate.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】virtual reality; presence; metaverse; education; remote education; technical training

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.3390/app12052667

【Author】 Dumitrache, Mihail Sandu, Ionut-Eugen Rotun, Carmen-Ionela Cohal, Antonio

【Source】ROMANIAN JOURNAL OF INFORMATION TECHNOLOGY AND AUTOMATIC CONTROL-REVISTA ROMANA DE INFORMATICA SI AUTOMATICA

【影响因子】0.000

【主题类别】

区块链技术-智能合约-

【Abstract】The transition to eGovernment creates challenges in terms of the confidentiality and security of sensitive data of citizens and organizations. Information systems require the implementation of appropriate security mechanisms to ensure the confidentiality, integrity and availability of data. Blockchain technology has the potential to transform public services, enabling administrations to organize processes and manipulate information in an innovative way. Blockchain's high level of security is an advantage over other tools and technologies used in data processing. This study examines how blockchain technology can contribute to the development of the new generation of eGovernment services and proposes an ecosystem model based on SSI (Self-Sovereign Identity) authentication and Smart Contracts between citizens and administrations. The results can be a starting point for the development of national initiatives to use the blockchain as a platform for communications and transactions in the public sector. Blockchain based electronic services provide enhanced security for governments, citizens and businesses.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; POS; POW; Smart Contracts; eGovernment; eID; SSI

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.33436/v32i1y202201

【Author】 Tella, Adeyinka Amuda, Halimah Odunayo Ajani, Yusuf Ayodeji

【Source】DIGITAL LIBRARY PERSPECTIVES

【影响因子】0.000

【主题类别】

区块链应用-文化领域-

【Abstract】Purpose This study aims to examine the awareness and perception of the relevance of blockchain technology in the management of libraries and archives in the fourth industrial revolution in a developing country, Nigeria. Design/methodology/approach Ten system librarians selected from five different libraries and ten archivists selected from five different archives in the Southwest geopolitical zone of Nigeria represent the sample for the study. The study adopted a purely qualitative approach where data was collected through an open-ended questionnaire mailed to the participants to guide against physical contact and maintained social distancing to observe COVID-19 protocol. Findings The results reveal that both the librarians and archivists are aware of blockchain technology, its adoption and use in libraries and archives. There is a positive perception about blockchain technology believing that it can assist libraries and archives in storing information in a distributed settings through gathering, preserving and sharing authoritative information, and supports archivists in creating a unique verifiable record that can be accessed by anyone in archives. Implementation, maintenance cost and difficulty in sustainability are identified as the challenges of blockchain adoption. Research limitations/implications This study is limited to one geopolitical zone of Nigeria which necessitates the need for further research on the similar subject matter in other geopolitical zones in Nigeria. Practical implications The findings of the study have identified the need for librarians and archivists to increase their awareness and develop a positive perception toward blockchain technologies. Originality/value To the best of the authors' knowledge, this study is the first to research the relevance of blockchain technology in Nigerian libraries and archives. This paper reported the benefits libraries and archives could derive from the adoption of blockchain, and how such can improve effective services delivery to the satisfaction of the users of archives and libraries.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Libraries; Nigeria; Archives; Fourth industrial revolution; Blockchain technology; Advanced technologies; Management of libraries

【发表时间】

【收录时间】2022-04-09

【文献类型】 期刊

【DOI】 10.1108/DLP-08-2021-0065

【Author】 Daniel, Erik Tschorsch, Florian

【Source】IEEE COMMUNICATIONS SURVEYS AND TUTORIALS

【影响因子】33.840

【主题类别】

综述--

【Abstract】Decentralized, distributed storage offers a way to reduce the impact of data silos as often fostered by centralized cloud storage. While the intentions of this trend are not new, the topic gained traction due to technological advancements, most notably blockchain networks. As a consequence, we observe that a new generation of peer-to-peer data networks emerges. In this survey paper, we therefore provide a technical overview of the next generation data networks. We use select data networks to introduce general concepts and to emphasize new developments. Specifically, we provide a deeper outline of the Interplanetary File System and a general overview of Swarm, the Hypercore Protocol, SAFE, Storj, and Arweave. We identify common building blocks and provide a qualitative comparison. From the overview, we derive future challenges and research goals concerning data networks.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Peer-to-peer computing; Next generation networking; Blockchains; Cloud computing; Protocols; File systems; Overlay networks; Blockchain networks; data networks; overlay networks; peer-to-peer networks

【发表时间】2022

【收录时间】2022-04-09

【文献类型】 综述

【DOI】 10.1109/COMST.2022.3143147