【Author】 Guo, Wei Xu, Jin Pei, Yukui Yin, Liuguo Jiang, Chunxiao Ge, Ning

【Source】IEEE INTERNET OF THINGS JOURNAL CCF-C

【影响因子】10.238

【主题类别】

区块链技术-协同技术-6G

【Abstract】Satellite Internet (SI) dramatically expanded the ground-based Internet, and it is also the future direction of 6G. However, due to limited computing power and bandwidth resources, Distributed Denial-of-Service (DDoS) attacks can cause more severe damage to SI, and even paralysis of the entire network. Current DDoS defense mechanisms are built on abundant computing power and bandwidth resources, making applying in the SI scenario challenging. Aiming at protecting SI from DDoS attacks, a blockchain-based distributed collaborative entrance defense (DCED) framework is proposed, in which network traffic characteristics can be recorded and aggregated at the entrances of SI. The proposed framework consists of a distributed detection digesting procedure, a digest virtual aggregation procedure, and an entrance control strategy. The former procedure detects and extracts multidimensional characteristics of DDoS attacks and pushes them onto the blockchain. The latter procedure collects block data and aggregates attack features using the MapReduce algorithm and then compares them with baseline and gives an alert. The strategy completes the filtering and interception of traffic. Experiments use the IXIA platform to generate malicious traffic, and results show that the framework can accurately identify attack traffic within 1500 ms, reaching an area of 0.99 under the receiver operating characteristic curve. The proposed framework is more effective than other similar DDoS methods, protecting the precious SI bandwidth resources.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Denial-of-service attack; Computer crime; Internet; Satellites; Feature extraction; Blockchains; Servers; Blockchain; distributed Denial-of-Service (DDoS) detection; MapReduce; satellite Internet (SI)

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 理论模型

【DOI】 10.1109/JIOT.2022.3176121

【Author】 Yi, Longyang Sun, Yangyang Wang, Bin Duan, Li Ma, Hongliang Han, Zhen Wang, Wei

【Source】INTERNATIONAL JOURNAL OF INTELLIGENT SYSTEMS CCF-C

【影响因子】8.993

【主题类别】

区块链技术-核心技术-跨链与多链

【Abstract】Usage-based insurance (UBI) provides reasonable vehicle insurance premiums based on vehicle usage and driving behavior. In general, there are three major issues in realizing intelligent UBI systems. First, UBI evaluation mechanisms are not auditable to drivers. Insurers may thus deliberately adjust the UBI premiums. Second, the process of collecting driving data by insurers may lead to serious privacy breaches. Third, forging safer driving data for reducing insurance premiums may cause economic losses for insurers. To address these challenges, in this study, we propose CCUBI, a cross-chain-based premium competition scheme with privacy preservation for intelligent UBI systems. We introduce tamper-resistant blockchain and smart contracts to construct credible insurance mechanisms. The cross-chain technology connects these blockchains in the entire network to form an open premium competition scheme. Vehicle owners can assess designated insurers by sharing historical data with them to get a suitable CCUBI plan. In addition, we propose a data aggregation method used for CCUBI analysis with privacy preservation. Vehicle owners only publish proofs of the driving data. Proofs can still maintain privacy and computability in cross-chain flows. Finally, we adopt roadside units to detect forged driving data. We conduct a detailed security analysis. Experimental results also demonstrate the efficiency of CCUBI.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain; cross-chain; data aggregation; privacy preservation; usage-based insurance

【发表时间】

【收录时间】2022-09-20

【文献类型】 理论模型

【DOI】 10.1002/int.23053

【Author】 Chen, Jing Zhan, Zeyi He, Kun Du, Ruiying Wang, Donghui Liu, Fei

【Source】IEEE TRANSACTIONS ON DEPENDABLE AND SECURE COMPUTING CCF-A

【影响因子】6.791

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】It is well known that each Public Key Infrastructure (PKI) system forms a closed security domain and only recognizes certificates in its own domain (such as medical systems, financial systems, and 5G networks). When users need to access services in other domains, their identities often cannot be recognized or PKI systems require extremely complex operations to authenticate the users' identities. This is the cross-domain authentication problem. The distributed consensus feature of blockchain provides a technical approach to solve this problem. However, there are some unresolved problems in existing blockchain-based schemes. On one hand, due to the low throughput of blockchain systems, the response speed may be insufferable when the number of cross-domain authentication requirements becomes enormous. On the other hand, these schemes insufficiently consider the privacy risk in the cross-domain scenario. In this article, we propose an efficient privacy-preserving cross-domain authentication scheme called XAuth that is integrated naturally with the existing PKI and Certificate Transparency (CT) systems. Specifically, we design a lightweight correctness verification protocol based on Multiple Merkle Hash Tree for rapid response. To protect users' privacy, we present an anonymous authentication protocol for cross-domain authentication. The security analysis and experimental results demonstrate that XAuth is secure and efficient.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Authentication; Security; Blockchain; Privacy; Public key; Protocols; Computer architecture; Cross-domain authentication; public key infrastructure; blockchain; privacy-preserving

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.1109/TDSC.2021.3092375

【Author】 Khanna, Abhirup Jain, Sapna Burgio, Alessandro Bolshev, Vadim Panchenko, Vladimir

【Source】FOODS

【影响因子】5.561

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Conventional food supply chains are centralized in nature and possess challenges pertaining to a single point of failure, product irregularities, quality compromises, and loss of data. Numerous cases of food fraud, contamination, and adulteration are daily reported from multiple parts of India, suggesting the absolute need for an upgraded decentralized supply chain model. A country such as India, where its biggest strength is its demographic dividend, cannot afford to malnutrition a large population of its children by allowing them to consume contaminated and adulterated dairy products. In view of the gravity of the situation, we propose a blockchain-enabled supply chain platform for the dairy industry. With respect to the supply chain platform, the dairy products of choice include milk, cheese, and butter. Blockchain is one of the fastest growing technologies having widespread acceptance across multiple industry verticals. Blockchain possesses the power to transform traditional supply chains into decentralized, robust, transparent, tamper proof, and sustainable supply chains. The proposed supply chain platform goes beyond the aspect of food traceability and focuses on maintaining the nutritional values of dairy products, identification of adulteration and contamination in dairy products, the increasing economic viability of running a dairy farm, preventing counterfeit dairy products, and enhancing the revenue of the dairy company. The paper collates the mentioned functionalities into four distinct impact dimensions: social, economic, operations, and sustainability. The proposed blockchain-enabled dairy supply chain platform combines the use of smart contracts, quick response code (QR code) technology, and IoT and has the potential to redefine the dairy supply chains on socio-economic, operational, and sustainability parameters.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】dairy products; food safety; traceability; supply chain management; blockchain

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.3390/foods11172716

【Author】 Kouhizadeh, Mahtab Zhu, Qingyun Sarkis, Joseph

【Source】INTERNATIONAL JOURNAL OF LOGISTICS MANAGEMENT

【影响因子】5.446

【主题类别】

区块链应用-虚拟经济-金融领域

【Abstract】Purpose This study proposes a systematic and comprehensive circular economy (CE) performance measure as an instrument to operationalize and quantify circularity. It seeks to evaluate the relative contribution of blockchain technology to evaluate various measures in this study. A general research agenda for investigating blockchain capabilities to performance assessment in CE is presented. Design/methodology/approach Empirical survey data from 32 CE and blockchain experts are collected to inform this study. Inductive reasoning, heatmaps, and a middle-range theory building approach are utilized to generalize theoretical patterns for blockchain support of CE performance assessment and measurement. A series of propositions are then developed as a middle-range theory for the true, false, perceptible, and hidden affordances of blockchain technology capabilities for CE performance measurement. Findings Overall, sixteen performance measures and metrics are identified and examined. The authors find most of these measures and metrics - based on literature and expert opinion - can be supported using blockchain technology capabilities. Four major blockchain capabilities, transparency and traceability, reliability and security, smart contracts, and incentivization and tokenization are shown to have varying potential support for CE performance assessment. There needs to be an evaluation of true, false, perceptible, and hidden affordances of blockchain technology capabilities for CE performance measurement in future studies. Originality/value Blockchain application for CE, and specifically performance measurements, is a new area. Research and practice evaluation on this issue is important but needs substantially additional investigation to help CE progress. This study provides a framework for evaluation and a foundation for future research at the nexus of CE, blockchain technology, and performance measurement.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Circular economy; Blockchain technology; Performance measurement; Sustainability; Supply chain

【发表时间】

【收录时间】2022-09-20

【文献类型】 理论模型

【DOI】 10.1108/IJLM-04-2022-0145

【Author】 Sun, Xiaowen Yang, Tan Hu, Bo

【Source】APPLIED INTELLIGENCE CCF-C

【影响因子】5.019

【主题类别】

--

【Abstract】

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 期刊

【DOI】 10.1007/s10489-022-03249-1

【Author】 Li, Zhiwen Xu, Xianhao Bai, Qingguo Chen, Cheng

【Source】ANNALS OF OPERATIONS RESEARCH

【影响因子】4.820

【主题类别】

区块链应用-实体经济-供应链

【Abstract】This paper explores the optimal joint decision of product information disclosure and ordering in a blockchain-enabled luxury supply chain. Using analytical models, we investigate the optimal joint decision of information disclosure and ordering under three scenarios (i.e., wholesale contracts only, revenue-sharing (RS) contracts only, and a hybrid of these two types of contracts). Furthermore, we extend our study to examine the impacts of the number of competing retailers and the retailers' fairness concerns on supply chain members' optimal decisions. Lastly, the theoretical results are checked and illustrated by numerical examples with sensitivity analysis. The main findings are as follows: (1) As the proportion of information-sensitive consumers in the market increases, the level of product information disclosure of supply chain members increases in varying degrees, while supply chain members' order quantities and profits first decrease and then increase in varying degrees. (2) When a RS contract is acceptable for all supply chain members, all members benefit from the cooperation between the manufacturer and retailers. (3) Although all supply chain members may benefit from an increase in the number of retailers, when the number of retailers is greater than a certain threshold, retailers would be caught in a "prisoner's dilemma" of product information disclosure due to consumer information overload. Moreover, to maximize business profits, manufacturers should sometimes strictly limit and control the number of their reseller partners, rather than blindly expand their markets. (4) Retailers may benefit from their own fairness concerns if and only if the level of fairness concerns is sufficiently low, otherwise such concerns would be harmful to all supply chain members.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain technology; Information disclosure; Wholesale and revenue-sharing contracts; Luxury supply chain; Newsvendor model

【发表时间】

【收录时间】2022-09-20

【文献类型】 实证数据

【DOI】 10.1007/s10479-022-04703-6

【Author】 Njualem, Lewis A.

【Source】SUSTAINABILITY

【影响因子】3.889

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Technological advancements in the past few decades have played a critical role in enhancing supply chain management from varied dimensions. While advancements in information technology have significantly improved various facets of the supply chain, supply chain visibility still lags in tracking and tracing capabilities. The disruptive and emergent blockchain technology (BCT) presents enormous potential to address issues of supply chain sustainability. This paper seeks to evaluate the proximity of BCT to resolve provenance issues throughout the supply chain. The research considers the immaturity of BCT alongside limited success stories in supply chain management. It uses a content analysis methodology to examine recent literature about using BCT in supply chain sustainability and provenance. A conceptual model for using BCT to create an enabled, visible, and sustainable supply chain is provided to frame the investigation. Findings reveal that the benefits of BCT have mostly been conceptually demonstrated in the sustainable supply chain literature, but with few practical applications. Moreover, technically driven challenges including scalability and control are still prevalent. It reaffirms the fact that participants within a blockchain enabled supply chain network must be at the same level of knowledge regarding the technology and its functionality. The study also indicates evidence of a growing research interest in the niche, which will eventually bring about solutions to address ongoing challenges faced by BCT in its integration into supply chain management. These findings contribute to the literature about improving the security and utility of supply chain sustainability and provenance by using BCT.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】sustainable supply chain; blockchain technology; visibility; traceability; provenance

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 综述

【DOI】 10.3390/su141710533

【Author】 Hu, Hongbin Wang, Yongbin

【Source】SUSTAINABILITY

【影响因子】3.889

【主题类别】

区块链技术-核心技术-共识机制

【Abstract】In recent years, the media industry has achieved rapid development and experienced three development stages from traditional media to new media and then to the current convergence media. Convergence media has brought about great changes in content production, communication mechanism, operation and maintenance management, but also brought about problems such as declining credibility of the industry, difficulty in confirming content rights, difficulty in protecting user privacy, etc. Research on convergence media based on blockchain can make use of the characteristics of blockchain to design or optimize the media industry. In this paper, we introduced the development of convergence media, blockchain and consensus mechanism, then we described a sustainable convergence media ecology based on blockchain. Furthermore, we designed and implemented a consensus mechanism named proof of efficiency (PoE). After analysis, PoE can provide high security and resist 51% resource attack, sybil attack, etc. The experimental results show that PoE has the characteristics of decentralization, strong consistency, low energy consumption, short average block generation time, high throughput and short block confirmation time; the consensus results of PoE can reflect the node's ecological characteristics in convergence media which can stimulate the activity of nodes and better solve the generation of the Matthew effect.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain; consensus mechanism; convergence media; media ecology; half-life; PageRank

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.3390/su141711026

【Author】 Lavaur, Thomas Lacan, Jerome Chanel, Caroline P. C.

【Source】SENSORS

【影响因子】3.847

【主题类别】

区块链技术-协同技术-物联网

【Abstract】The Internet of Things includes all connected objects from small embedded systems with low computational power and storage capacities to efficient ones, as well as moving objects like drones and autonomous vehicles. The concept of Internet of Everything expands upon this idea by adding people, data and processing. The adoption of such systems is exploding and becoming ever more significant, bringing with it questions related to the security and the privacy of these objects. A natural solution to data integrity, confidentiality and single point of failure vulnerability is the use of blockchains. Blockchains can be used as an immutable data layer for storing information, avoiding single point of failure vulnerability via decentralization and providing strong security and cryptographic tools for IoE. However, the adoption of blockchain technology in such heterogeneous systems containing light devices presents several challenges and practical issues that need to be overcome. Indeed, most of the solutions proposed to adapt blockchains to devices with low resources confront difficulty in maintaining decentralization or security. The most interesting are probably the Layer 2 solutions, which build offchain systems strongly connected to the blockchain. Among these, zk-rollup is a promising new generation of Layer 2/off-chain schemes that can remove the last obstacles to blockchain adoption in IoT, or more generally, in IoE. By increasing the scalability and enabling rule customization while preserving the same security as the Layer 1 blockchain, zk-rollups overcome restrictions on the use of blockchains for IoE. Despite their promises illustrated by recent systems proposed by startups and private companies, very few scientific publications explaining or applying this barely-known technology have been published, especially for non-financial systems. In this context, the objective of our paper is to fill this gap for IoE systems in two steps. We first propose a synthetic review of recent proposals to improve scalability including onchain (consensus, blockchain organization, horizontal ellipsis ) and offchain (sidechain, rollups) solutions and we demonstrate that zk-rollups are the most promising ones. In a second step, we focus on IoE by describing several interesting features (scalability, dynamicity, data management, horizontal ellipsis ) that are illustrated with various general IoE use cases.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】IoT; IoE; blockchain; rollup; Zero-Knowledge; zk-rollup; scalability

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.3390/s22176493

【Author】 Ashfaq, Tehreem Khalid, Rabiya Yahaya, Adamu Sani Aslam, Sheraz Azar, Ahmad Taher Alkhalifah, Tamim Tounsi, Mohamed

【Source】SENSORS

【影响因子】3.847

【主题类别】

区块链应用-实体经济-交通领域

【Abstract】The exponential growth of intelligent vehicles(IVs) development has resulted in a complex network. As the number of IVs in a network increases, so does the number of connections. As a result, a great deal of data is generated. This complexity leads to insecure communication, traffic congestion, security, and privacy issues in vehicular networks (VNs). In addition, detecting malicious IVs, data integration, and data validation are major issues in VNs that affect network performance. A blockchain-based model for secure communication and malicious IV detection is proposed to address the above issues. In addition, this system also addresses data integration and transaction validation using an encryption scheme for secure communication. A multi-chain concept separates the legitimate and malicious data into two chains: the Integrity chain (I-chain) and Fraud chain (F-chain). This multi-chain mechanism solves the storage problem and reduces the computing power. The integration of blockchain in the proposed model provides privacy, network security, transparency, and immutability. To address the storage issue, the InterPlanetary File System (IPFS) is integrated with Certificate Authority (CA). A reputation mechanism is introduced to detect malicious IVs in the network based on ratings. This reputation mechanism is also used to prevent Sybil attack. The evaluation of the proposed work is based on the cost of smart contracts and computation time. Furthermore, two attacker models are presented to prevent the selfish mining attack and the Sybil attack. Finally, a security analysis of the proposed smart contracts with their security vulnerabilities is also presented.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】certificate authority; intelligent vehicles; InterPlanetary File System; vehicular network

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 理论模型

【DOI】 10.3390/s22176318

【Author】 Ahmed, Waheeb Di, Wu Mukathe, Daniel

【Source】SENSORS

【影响因子】3.847

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】As a part of the intelligent transportation system, vehicular ad hoc networks (VANETs) provide timely information about road events and traffic to improve road safety and traffic efficiency. However, VANETs face many challenges, such as attacks from malicious vehicles, identity privacy leakage, and the absence of trust between vehicular nodes. In addition, vehicles nearby an event usually lack the motivation to participate in the traffic event validation whenever it occurs, which requires the cooperation of vehicles on the network. To solve these problems, a blockchain-enabled incentive trust model with a privacy-preserving threshold ring signature scheme for VANETs is proposed. Firstly, a threshold ring signature scheme is designed in order to allow participants in the non-trusted environment to anonymously witness the message's authenticity and reliability while guaranteeing the vehicle's privacy. Second, a blockchain-enabled incentive trust management model is presented to enable the roadside units (RSUs) to thwart various attacks and guarantee the trustworthiness of event messages transmitted in VANETs and also motivate the senders of the traffic information and their witnesses with incentives. Finally, to improve efficiency, a practical Byzantine fault-tolerant consensus mechanism is used. Our proposed system is demonstrated to be effective and secure for VANETs, according to both security analysis and performance evaluation.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】vehicular ad hoc networks; trust; privacy; security; event validation; incentives; blockchain; ring signature

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.3390/s22176715

【Author】 Ferraro, Giovanna Ramponi, Alessandro Scarlatti, Sergio

【Source】TECHNOLOGY ANALYSIS & STRATEGIC MANAGEMENT

【影响因子】3.745

【主题类别】

区块链应用-实体经济-工业领域

【Abstract】The Fintech and Industry 4.0 paradigms, and the combination of the two, have gained increasing attention from the scientific community in recent years. This paper aims to explore the convergence of these two research themes by framing their interplay through a systematic literature review covering the period of 2017 to August 2021 and involving 78 papers. The bibliometric approach made it possible to extract a large amount of useful information which was previously scattered and to present it in a systematic way. The analysis of the co-occurrence network of keywords identified four distinct clusters, corresponding to the dominant research themes in the area, which suggested the design of a research agenda. The agenda-driven questions indicated which current aspects of Fintech and Industry 4.0 need additional insight. In that regard, the environmental and social responsibility aspects of the firms in the sectors were found of particular importance. Theoretical and practical implications of this study as well as answers provided to a set of initially posed research questions were also discussed.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Fintech; Industry 4; 0; innovation; blockchain

【发表时间】

【收录时间】2022-09-20

【文献类型】 综述

【DOI】 10.1080/09537325.2022.2117025

【Author】 Wang, Chuangao Liu, Xuefeng

【Source】TECHNOLOGY ANALYSIS & STRATEGIC MANAGEMENT

【影响因子】3.745

【主题类别】

区块链治理-元分析-主题识别

【Abstract】The previous literature on blockchain focuses on its technological principles and characteristics, broad application scenarios, and industrial development. Only a few studies conduct patent information analyses, and even fewer investigate the technological opportunities of blockchain. Through patent analyses, the authors identify the technology activities and potential areas of technology development of blockchain, and thereby make patent roadmaps. Technology-Effect Matrix and Distribution Difficulty of Technological Effect are used for further analysis. This study contributes by examining the current development of blockchain, predicting the potential areas of future development, and providing some suggestions for public policymaking and research and development strategising of innovators.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Technology activity; potential areas of technology development; patent roadmap; blockchain

【发表时间】

【收录时间】2022-09-20

【文献类型】 实证数据

【DOI】 10.1080/09537325.2022.2118575

【Author】 Kwon, Soonhong Park, Jaehyoung Lee, Taeyang Oh, SungHeun Lee, Jong-Hyouk

【Source】SOFTWARE-PRACTICE & EXPERIENCE

【影响因子】3.200

【主题类别】

区块链技术-核心技术-加密算法

【Abstract】The coronavirus pandemic, which first began in December 2019, has completely changed our daily lives. In particular, daily online digital content consumption over the world has soared since the start of the coronavirus pandemic. For preventing illegal digital content distribution, various technologies have been applied, but current copyright protection technologies are still lacking to provide secure digital content distribution while preserving privacy. In this article, we introduce a new digital content distribution system, which utilizes blockchain-based decentralized identifier and format-preserving encryption to enable user privacy preserved digital content tracking. We present the system architecture with detailed message flows of the proposal and provide its analysis result in terms of security and overhead.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】decentralized identity; forensic watermarking; format-preserving encryption; illegal digital content distribution tracking system

【发表时间】

【收录时间】2022-09-20

【文献类型】 理论模型

【DOI】 10.1002/spe.3148

【Author】 Matenga, Alice Elizabeth Mpofu, Khumbulani

【Source】APPLIED SCIENCES-BASEL

【影响因子】2.838

【主题类别】

区块链应用-实体经济-供应链

【Abstract】Sheet metal part manufacture is a precursor to various upstream assembly processes, including the manufacturing of mechanical and body parts of railcars, automobiles, ships, etc., in the transport manufacturing sector. The (re)manufacturing of railcars comprises a multi-tier manufacturing supply chain, mainly supported by local small and medium enterprises (SMEs), where siloed information leads to information disintegration between supplier and manufacturer. Technology spillovers in information technology (IT) and operational technology (OT) are disrupting traditional supply chains, leading to a sustainable digital economy, driven by new innovations and business models in manufacturing. This paper presents application of industrial DevOps by merging industry 4.0 technologies for collaborative and sustainable supply chains. A blockchain-based information system (IS) and a cloud manufacturing (CM) process system were integrated, for a supply chain management (SCM) system for the railcar manufacturer. A systems thinking methodology was used to identify the multi-hierarchical system, and a domain-driven design approach (DDD) was applied to develop the event-driven microservice architecture (MSA). The result is a blockchain-based cloud manufacturing as a service (BCMaaS) SCM system for outsourcing part production for boxed sheet metal parts. In conclusion, the BCMaaS system performs part provenance, traceability, and analytics in real time for improved quality control, inventory management, and audit reliability.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】SCM; cloud manufacturing; industry 4.0; event-driven microservices; permissioned blockchain; Kubernetes; stateful

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 理论模型

【DOI】 10.3390/app12178664

【Author】 Feng, Hangwei Wang, Jinlin Li, Yang

【Source】ELECTRONICS

【影响因子】2.690

【主题类别】

区块链技术-核心技术-分布式存储

【Abstract】Blockchain technology is a unique distributed ledger technology that has been widely used in various areas. With the increase in data on the blockchain and the append-only nature of the blockchain, the traditional blockchain's full replica storage technique leads to blockchain storage scalability problem. Existing methods prioritize minimizing the storage strain on blockchain nodes while ignoring the availability of data, resulting in a lengthy average response time for users to access the blockchain. To address the shortcomings, this paper proposes an Information-Centric Networking-based blockchain storage architecture. The architecture uses the enhanced resolution system for community division to build blockchain node partitions and store blockchain ledgers in the underlying network. It introduces virtual chain for rapid blockchain indexing and adopts a collaborative block replica deletion algorithm across neighboring partitions, including replica number decision based on blockchain access decay characteristics and replica deletion based on resource relationship. Finally, we compare and analyze the proposed blockchain storage architecture with BC-store and KASARASA, and the results demonstrate that this architecture has significantly lower average access time than others. The replica data volume of this method is reduced by 57.2% compared to the full replica policy, but the access time is only 5.2% slower when compared to the full replica policy, which substantially increases the replica storage utilization.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain storage; informationcentric networking; replica delete; decay

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.3390/electronics11172661

【Author】 Cohen, Gil

【Source】JOURNAL OF FORECASTING

【影响因子】2.627

【主题类别】

区块链治理-市场治理-市场分析

【Abstract】This research makes the first attempt to design, optimize and use average true range (ATR)-based trading systems for five popular cryptocurrencies. We used particle swarm optimization procedures to optimize systems with multiple objectives that are based on the ATR concept. Our aim was to determine the best configurations for each system that would maximize net profits, the profit factor, and the percentage of profitable trades. We demonstrate that the ATR-based systems can predict the price trends of the examined cryptocurrencies. Our results also indicate that optimized Keltner Channel-based systems improve the ability of the stand-alone optimized ATR systems to forecast trends, net profits, and the profit factor. Finally, both systems perform better for long trades than for short trades.

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【Keywords】algorithmic; artificial intelligence; cryptocurrencies; intraday trading

【发表时间】

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.1002/for.2906

【Author】 Kertesz, Attila

【Source】COMPUTER

【影响因子】2.256

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】This article proposes an architecture for vaccination information validation and tracking with a fog and cloud-based blockchain system, providing a privacy-aware and scalable approach for interoperable and effective data management. It evaluates the scalability of the underlying blockchain system by means of simulation.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.1109/MC.2022.3147368

【Author】 Rahman, Anichur Montieri, Antonio Kundu, Dipanjali Karim, Md Razaul Islam, Md Jahidul Umme, Sara Nascita, Alfredo Pescape, Antonio

【Source】JOURNAL OF NETWORK AND SYSTEMS MANAGEMENT

【影响因子】2.198

【主题类别】

区块链技术-协同技术-隐私计算

【Abstract】Blockchain (BC) and software-defined networking (SDN) are leading technologies which have recently found applications in several network-related scenarios and have consequently experienced a growing interest in the research community. Indeed, current networks connect a massive number of objects over the Internet and in this complex scenario, to ensure security, privacy, confidentiality, and programmability, the utilization of BC and SDN have been successfully proposed. In this work, we provide a comprehensive survey regarding these two recent research trends and review the related state-of-the-art literature. We first describe the main features of each technology and discuss their most common and used variants. Furthermore, we envision the integration of such technologies to jointly take advantage of these latter efficiently. Indeed, we consider their group-wise utilization-named BC-SDN-based on the need for stronger security and privacy. Additionally, we cover the application fields of these technologies both individually and combined. Finally, we discuss the open issues of reviewed research and describe potential directions for future avenues regarding the integration of BC and SDN. To summarize, the contribution of the present survey spans from an overview of the literature background on BC and SDN to the discussion of the benefits and limitations of BC-SDN integration in different fields, which also raises open challenges and possible future avenues examined herein. To the best of our knowledge, compared to existing surveys, this is the first work that analyzes the aforementioned aspects in light of a broad BC-SDN integration, with a specific focus on security and privacy issues in actual utilization scenarios.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; Software defined networking; BC-SDN integration; Security; Privacy; Confidentiality; Internet of Things

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 理论模型

【DOI】 10.1007/s10922-022-09682-4

【Author】 Bravo, Manuel Chockler, Gregory Gotsman, Alexey

【Source】DISTRIBUTED COMPUTING CCF-C

【影响因子】1.937

【主题类别】

区块链技术-核心技术-共识机制

【Abstract】Partially synchronous Byzantine consensus protocols typically structure their execution into a sequence of views, each with a designated leader process. The key to guaranteeing liveness in these protocols is to ensure that all correct processes eventually overlap in a view with a correct leader for long enough to reach a decision. We propose a simple view synchronizer abstraction that encapsulates the corresponding functionality for Byzantine consensus protocols, thus simplifying their design. We present a formal specification of a view synchronizer and its implementation under partial synchrony, which runs in bounded space despite tolerating message loss during asynchronous periods. We show that our synchronizer specification is strong enough to guarantee liveness for single-shot versions of several well-known Byzantine consensus protocols, including PBFT and HotStuff. We furthermore give precise latency bounds for these protocols when using our synchronizer. By factoring out the functionality of view synchronization we are able to specify and analyze the protocols in a uniform framework, which allows comparing them and highlights trade-offs.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Byzantine consensus; Blockchain; Partial synchrony; Liveness

【发表时间】

【收录时间】2022-09-20

【文献类型】 实验仿真

【DOI】 10.1007/s00446-022-00432-y

【Author】 Jadav, Nilesh Kumar Nair, Anuja R. Gupta, Rajesh Tanwar, Sudeep Lakys, Yahya Sharma, Ravi

【Source】INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS

【影响因子】1.882

【主题类别】

区块链技术-协同技术-物联网

【Abstract】Internet of things (IoT) has massively adopted the market due to the current era demanding fully intelligent and autonomous services. However, efficient network management and message exchange are challenging in a dynamic and energy-constrained IoT environment. Hence, for efficient message passing in IoT applications, softwarization of the IoT network is essential, wherein the logical control plane is decoupled from the data plane consisting of hardware devices such as routers and switches. Using softwarization, a centralized software-defined networking (SDN) controller is responsible for routing data packets from source to destination in a dynamic environment. However, to reduce the computational overhead of filtering malicious and nonmalicious packets, artificial intelligence (AI) classifiers prove beneficial. Moreover, such challenges have trade-offs with network requirements such as ultralow latency, high reliability, and higher data rates. Motivated by this, we propose an AI-enabled network softwarization scheme for efficient message exchange under the 6G network. Lastly, the performance of the proposed scheme is evaluated with different performance metrics, such as accuracy, precision, f1-score, packet drop ratio, and latency. The empirical result revealed that the proposed scheme outperforms in terms of accuracy and controller efficiency, that is, 81.64% and 82.2%, respectively.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】6G network; artificial intelligence; internet of things; LSTM; network softwarization; software-defined networking

【发表时间】

【收录时间】2022-09-20

【文献类型】 实证数据

【DOI】 10.1002/dac.5336

【Author】 Garratt, Rodney J. van Oordt, Maarten R. C.

【Source】JOURNAL OF ECONOMIC DYNAMICS & CONTROL

【影响因子】1.620

【主题类别】

区块链应用-虚拟经济-ICO

【Abstract】This paper examines whether initial coin offerings (ICOs) are a beneficial form of financing with desirable economic properties. We do so by examining how financing a start-up via an ICO changes the incentives of an entrepreneur to exert effort to reduce cost. An ICO can result in a better or worse alignment of the interests of the entrepreneur and the investors compared with debt and venture capital financing. Notably, an ICO can be the only form of financing that induces optimal effort, and there are projects that should not take place unless they can be financed through an ICO. (C) 2021 Published by Elsevier B.V.

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【Keywords】Valuation; Venture capital; Corporate finance; Initial coin offerings; Cryptocurrencies

【发表时间】2022

【收录时间】2022-09-20

【文献类型】 实证数据

【DOI】 10.1016/j.jedc.2021.104171

【Author】 Fu, Yating Xia, Yufei

【Source】APPLIED ECONOMICS LETTERS

【影响因子】1.287

【主题类别】

区块链治理-市场治理-技术采用

【Abstract】Using a sample of listed firms in China, we aim to examine the motivation of blockchain adoption and propose two opposite hypotheses, namely value creation hypothesis and insider selling hypothesis. The empirical results demonstrate that initial blockchain adoption announcement leads to approximately 2% CAAR over the three-day interval around the release, whereas the abnormal return quickly reverses after the announcement, implying that the blockchain adoption can only provide short-term value and against the value creation hypothesis. The finding remains robust for largest industries (manufacturing and information technology) and release channels. On the contrary, we observe a significant positive effect of insider selling on the blockchain adoption announcement, which supports the insider selling hypothesis. Our findings can provide a better understanding on firms' motivation of blockchain adoption, warn the investors to keep a rational attitude to 'blockchain hysteria' when making investment decisions, and motivate the regulators to propose strict information disclosure mechanism and prevent insider selling behaviours.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain; value creation; insider selling; event study; two-stage least square regression

【发表时间】

【收录时间】2022-09-20

【文献类型】 观点阐述

【DOI】 10.1080/13504851.2022.2118960

【Author】 Emmert, Frank

【Source】AMERICAN JOURNAL OF COMPARATIVE LAW

【影响因子】0.951

【主题类别】

区块链技术-平台项目-数字货币

【Abstract】

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】

【发表时间】

【收录时间】2022-09-20

【文献类型】 编辑社论

【DOI】 10.1093/ajcl/avac022