【Author】 Jiao, Zhenzhen Tian, Rui Shang, Dezhong Ding, Hui Zhang, Baoxian Li, Cheng

【Source】IEEE NETWORK

【影响因子】10.294

【主题类别】

区块链技术-核心技术-共识机制

【Abstract】How to simultaneously achieve high security level, good scalability, and full decentralization is still a big issue in the design of a blockchain system. In this article, we propose Bicomp, a bilayer, scalable Nakamoto consensus protocol that is based purely on decentralized Nakamoto consensus. Bicomp works to generate two types of blocks - microblocks for concurrent in-network transaction serialization and macroblocks for chain formation. A leader is elected at the beginning of each round through Proof of Work-based computation; it puts microblocks mined by different nodes into one macroblock at the end of its tenure. Such bilayer design limits a leader's power and encourages as many nodes as possible to concurrently participate in the transaction serialization process, promoting the sharding nature of the system. Furthermore, several mechanisms are elaborately designed to reduce the transaction overlapping and further limit a leader's power, including a novel transaction diversity-based metric for deciding the branch legality. Security issues and potential attacks to Bicomp are extensively discussed. Experimental results based on 500 nodes all over the world show that Bicomp achieves high throughput performance.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Measurement; Leadership; Voting; Scalability; Throughput; Consensus protocol; Security

【发表时间】2022

【收录时间】2022-08-24

【文献类型】 理论模型

【DOI】 10.1109/MNET.103.2100339

【Author】 Hu, Xiao

【Source】PRODUCTION PLANNING & CONTROL

【影响因子】6.846

【主题类别】

区块链技术-协同技术-物联网

【Abstract】This paper uses the Internet of Things and blockchain-related technologies to combine computer technology to develop a real-time monitoring system for cold chain logistics. The system can grasp the real-time dynamics of the cold chain environment of agricultural products and control them according to the dynamic conditions, which eliminates the blind spots in the cold chain logistics process and also guarantees the quality and safety of fresh agricultural products. This paper optimizes the internal resources of the blockchain system model, proposes an optimization algorithm, and combines the blockchain technology to construct a cold chain logistics model for agricultural products to obtain an embedded cold chain system. Finally, this paper designs an experiment to verify the performance of the system. According to the results of experimental research, the cold chain logistics system of agricultural products based on embedded system and blockchain constructed in this paper can effectively improve the transportation efficiency of agricultural products, and it also has a certain auxiliary effect on the monitoring of agricultural logistics transportation.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Embedded; blockchain; agricultural products; cold chain logistics

【发表时间】

【收录时间】2022-08-24

【文献类型】 实验仿真

【DOI】 10.1080/09537287.2022.2101939

【Author】 Wang, Haiyan Sun, Min Li, Han Kang, Diantong Yan, Lei Gao, Jianhao

【Source】FRONTIERS IN PUBLIC HEALTH

【影响因子】6.461

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】A central issue of public health security and the construction of an early warning system is to establish a set of responsibility-oriented incentives and restraint mechanisms. This is closely related to the accounting transparency of the institutional environment and the fear sentiment of the individual's predicament. This study analyses the relationship between accounting transparency, fear sentiment, and COVID-19 through a VAR model analysis. The results show a significant and negative relationship between accounting transparency and daily new COVID-19 patients. In particular, accounting transparency has a negative impact on the increase in the number of people infected with a two-period lag, while the three-period lag in the number of new epidemics has a negative impact on accounting information. Second, accounting transparency has a positive impact on the increase in the search volume on COVID-19 within a three-period lag. After the three-period lag, the number of new epidemics has a positive impact on accounting information. Third, an increase in fear sentiment can be driven by the fear of COVID-19. Fourth, in the public health early warning system, according to the abovementioned time characteristics, the system arranges the emotional counseling, early warning incentives, and institutional constraints to be dealt with in the first 4 days. In addition, in the early warning target-oriented system setting, the parallel system helps to improve the early warning efficiency.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】fear sentiment; accounting transparency; COVID-19; blockchain; public health; public health security early warning system

【发表时间】2022

【收录时间】2022-08-24

【文献类型】 理论模型

【DOI】 10.3389/fpubh.2022.908430

【Author】 Amanat, Amna Rizwan, Muhammad Maple, Carsten Zikria, Yousaf Bin Almadhor, Ahmad S. Kim, Sung Won

【Source】FRONTIERS IN PUBLIC HEALTH

【影响因子】6.461

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】Healthcare information is essential for both service providers and patients. Further secure sharing and maintenance of Electronic Healthcare Records (EHR) are imperative. EHR systems in healthcare have traditionally relied on a centralized system (e.g., cloud) to exchange health data across healthcare stakeholders, which may expose private and sensitive patient information. EHR has struggled to meet the demands of several stakeholders and systems in terms of safety, isolation, and other regulatory constraints. Blockchain is a distributed, decentralized ledger technology that can provide secured, validated, and immutable data sharing facilities. Blockchain creates a distributed ledger system using techniques of cryptography (hashes) that are consistent and permit actions to be carried out in a distributed manner without needing a centralized authority. Data exploitation is difficult and evident in a blockchain network due to its immutability. We propose an architecture based on blockchain technology that authenticates the user identity using a Proof of Stake (POS) cryptography consensus mechanism and Secure Hash Algorithm (SHA256) to secure EHR sharing among different electronic healthcare systems. An Elliptic Curve Digital Signature Algorithm (ECDSA) is used to verify EHR sensors to assemble and transmit data to cloud infrastructure. Results indicate that the proposed solution performs exceptionally well when compared with existing solutions, which include Proof-Of-Work (POW), Secure Hash Algorithm (SHA-1), and Message Digest (MD5) in terms of power consumption, authenticity, and security of healthcare records.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain; cloud computing; electronic healthcare records; decentralized; Internet of Things

【发表时间】2022

【收录时间】2022-08-24

【文献类型】 理论模型

【DOI】 10.3389/fpubh.2022.938707

【Author】 Boobalan, Parimala Ramu, Swarna Priya Quoc-Viet Pham Dev, Kapal Pandya, Sharnil Maddikunta, Praveen Kumar Reddy Gadekallu, Thippa Reddy Thien Huynh-The

【Source】COMPUTER NETWORKS CCF-B

【影响因子】5.493

【主题类别】

区块链技术-协同技术-物联网

【Abstract】Industrial Internet of Things (IIoT) lays a new paradigm for the concept of Industry 4.0 and paves an insight for new industrial era. Nowadays smart machines and smart factories use machine learning/deep learning based models for incurring intelligence. However, storing and communicating the data to the cloud and end device leads to issues in preserving privacy. In order to address this issue, Federated Learning (FL) technology is implemented in IIoT by the researchers nowadays to provide safe, accurate, robust and unbiased models. Integrating FL in IIoT ensures that no local sensitive data is exchanged, as the distribution of learning models over the edge devices has become more common with FL. Therefore, only the encrypted notifications and parameters are communicated to the central server. In this paper, we provide a thorough overview on integrating FL with IIoT in terms of privacy, resource and data management. The survey starts by articulating IIoT characteristics and fundamentals of distributed machine learning and FL. The motivation behind integrating IIoT and FL for achieving data privacy preservation and on-device learning are summarized. Then we discuss the potential of using machine learning (ML), deep learning (DL) and blockchain techniques for FL in secure IIoT. Further we analyze and summarize several ways to handle the heterogeneous and huge data. Comprehensive background on data and resource management are then presented, followed by applications of IIoT with FL in automotive, robotics, agriculture, energy, and healthcare industries. Finally, we shed light on challenges, some possible solutions and potential directions for future research.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Data storage; IIoT; Federated Learning; Data privacy; Data sharing; Resource management

【发表时间】2022

【收录时间】2022-08-24

【文献类型】 综述

【DOI】 10.1016/j.comnet.2022.109048

【Author】 Chittipaka, Venkataiah Kumar, Satish Sivarajah, Uthayasankar Bowden, Jana Lay-Hwa Baral, Manish Mohan

【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】Organizations adopt blockchain technologies to provide solutions that deliver transparency, traceability, trust, and security to their stakeholders. In a novel contribution to the literature, this study adopts the technology-organization-environment (TOE) framework to examine the technological, organizational, and environmental dimensions for adopting blockchain technology in supply chains. This represents a departure from prior studies which have adopted the technology acceptance model (TAM), technology readiness index (TRI), theory of planned behavior (TPB), united theory of acceptance and use of technology (UTAUT) models. Data was collected through a survey of 525 supply chain management professionals in India. The research model was tested using structural equation modeling. The results show that all the eleven TOE constructs, including relative advantage, trust, compatibility, security, firm's IT resources, higher authority support, firm size, monetary resources, rivalry pressure, business partner pressure, and regulatory pressure, had a significant influence on the decision of blockchain technology adoption in Indian supply chains. The findings of this study reveal that the role of blockchain technology adoption in supply chains may significantly improve firm performance improving transparency, trust and security for stakeholders within the supply chain. Further, this research framework contributes to the theoretical advancement of the existing body of knowledge in blockchain technology adoption studies.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain Technologies; Technological Perspective; Organizational perspective; Environmental perspective; Structural equation modeling

【发表时间】

【收录时间】2022-08-24

【文献类型】 实验仿真

【DOI】 10.1007/s10479-022-04801-5

【Author】 Zhang, Tianshuai Zhang, Leyou Wu, Qing Mu, Yi Rezaeibagha, Fatemeh

【Source】IEEE SYSTEMS JOURNAL

【影响因子】4.802

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】The application of blockchain to data sharing in an untrusted environment has received widespread industry attention in recent years. However, the tamper-proof property of blockchain brings protection for sharing data and also leads to a new limitation for the deletion of malicious data. Nowadays, many methods based on redactable blockchain with a chameleon hash is proposed to attempt to solve the above problem, but loss of effective access control to the modifiers can easily lead to breaking the positive characteristics of the blockchain. To address the aforementioned problem, a hierarchical access control redactable blockchain model for data sharing through attribute-based encryption and a chameleon hash is introduced. Under this model, the data owner can specify who can modify their data by setting an access policy and authenticating the modifier with a digital signature. The data owner's full control over rights is guaranteed, while the modifier's behavior is regulated. In addition, the hierarchical access control decentralized technique solves the overpowerful problem of center authority and single-point-of-failure problems in the existing works. The security analysis indicates that the proposed scheme achieves indistinguishable chosen plaintext attack security as well as collision resistance security. Performance analysis shows that the proposed scheme is more complete and has better efficiency compared with other schemes.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchains; Authorization; Periodic structures; Performance analysis; Organizations; Medical diagnostic imaging; Logic gates; Attribute-based encryption (ABE); blockchain; chameleon hash; data sharing

【发表时间】

【收录时间】2022-08-24

【文献类型】 实验仿真

【DOI】 10.1109/JSYST.2022.3186145

【Author】 Du, Pengbo Liu, Ziming Huang, Bonan Jing, Guoxiu Feng, Lihong Yang, Chao

【Source】FRONTIERS IN ENERGY RESEARCH

【影响因子】3.858

【主题类别】

区块链应用-实体经济-能源领域

【Abstract】With the increase of wind power penetration, the deviation caused by its volatility and intermittency poses a growing threat to the grid. Energy trading in short-term markets for wind power and backup storage helps compensate for the deviations. Furthermore, the introduction of peer-to-peer (P2P) energy trading can effectively reduce the risk of centralized market management. However, the higher cost of energy storage are not conducive to wind power producers (WPPs). And P2P trading also suffers from trust and efficiency problems. This paper provides a blockchain based short-term energy trading market, which resolves generation deviations through efficient and trusted real-time transactions between WPP and prosumers. The blockchain-based energy trading market is a trustless P2P structure, and the trading is triggered by smart contracts to ensure efficiency. Furthermore, a reputation mechanism is designed to incentivize WPP's generation forecasts to be accurate and prosumers to participate in the market. A bilevel optimization method is designed to increase the revenue of WPP and reduce the costs of prosumers. The market can effectively balance the deviation of wind power generation, increase the revenue of WPP by 9.55%, and reduce the costs for consumers by 5.6%.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】wind power producer; blockchain; bilevel; energy trading; short-term market

【发表时间】2022

【收录时间】2022-08-24

【文献类型】 实验仿真

【DOI】 10.3389/fenrg.2022.923292

【Author】 Kaur, Jaspreet Kumar, Satish Narkhede, Balkrishna E. Dabic, Marina Rathore, Ajay Pal Singh Joshi, Rohit

【Source】ELECTRONIC COMMERCE RESEARCH

【影响因子】3.462

【主题类别】

区块链应用-虚拟经济-供应链金融

【Abstract】Small and medium enterprises (SMEs) in India are suffering from the long-standing challenges related to asymmetric information, high transaction costs, SMEs' opacity and limited access to credit. Blockchain technology, which is still in its infancy in terms of adoption in India, can facilitate SMEs to counter these challenges. Fuelled by this motivation, the study aims to investigate the significant barriers to blockchain adoption in supply chain finance practices by Indian SMEs. Using fuzzy-analytic hierarchy process, sensitivity analysis, and fuzzy-decision-making trial and evaluation laboratory this paper identifies the blockchain barriers, prioritises them and examine their cause and effect relationships. The results of the study indicate that technology barriers are the most influential barriers that impede blockchain adoption. The findings will help the policymakers and practitioners to take suitable measures to overcome these barriers and fuel the adoption of blockchain in Indian SMEs.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Blockchain technology; Supply chain finance; SME; Barriers; Fuzzy-AHP; Fuzzy-DEMATEL; Sensitivity analysis

【发表时间】

【收录时间】2022-08-24

【文献类型】 观点阐述

【DOI】 10.1007/s10660-022-09566-4

【Author】 Baig, Muhammad Anas Sunny, Danish Ali Alqahtani, Abdullah Alsubai, Shtwai Binbusayyis, Adel Muzammal, Muhammad

【Source】COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE

【影响因子】3.120

【主题类别】

区块链应用-实体经济-供应链

【Abstract】The integration of blockchain and IoT enables promising solutions in decentralized environments in contrast with centralized systems. The blockchain brings forth features such as fault tolerance, security, and transparency of the data in IoT devices. As there is requirement of consensus among the network nodes to agree on a single-state-of-ledger, nonetheless, the extensive computational requirement for the consensus protocol becomes a limitation in resource-constrained IoT devices with limited battery, computation, and communication capabilities. This study proposes an empirical approach on the adoption of blockchain in a supply chain environment. Furthermore, a modified version of the Raft consensus protocol is proposed for use in supply-chain environment on the permissioned blockchain Hyperledger. In Raft consensus protocol, each transaction is directed to the leader node that transmits it to the follower nodes, making the leader node the bottleneck thus inhibiting the scalability and throughput of the system. This also results in high latency for the network. The modified RAFT consensus protocol (mRAFT) is based on the idea of utilizing the idle follower nodes in disseminating the vote requests and log replication messages. A detailed empirical evaluation of the solution built on Hyperledger Caliper is performed to demonstrate the applicability of the system. The improved workload division on the peers boosts the throughput and latency of the system in ordering service that enhances the overall efficiency of the system.

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】2022-08-24

【文献类型】 观点阐述

【DOI】 10.1155/2022/9228982

【Author】 Wang, Zeyu Lu, Jia Li, Mingyu Yang, Siting Wang, Yutong Cheng, Xin

【Source】COMPUTATIONAL INTELLIGENCE AND NEUROSCIENCE

【影响因子】3.120

【主题类别】

区块链技术-协同技术-边缘计算

【Abstract】Aiming at improving the enterprise performance and venture capital management, the edge computing is combined with blockchain technology in the construction of the supply chains so as to improve the stability and security of raw material supply chains of venture capital enterprises. Firstly, the relationships among venture capital, enterprise performance, and supply chain integration are analyzed, and the positive impacts of optimization and innovation of supply chain technology and venture capital on enterprise performance improvement are discussed. Secondly, the edge computing and blockchain technology are adopted to optimize the supply chain, and a protocol model is established to improve the security of supply chain information transmission. In addition, the supply chain Internet of Things (IoT) system is designed in layers based on blockchain and edge computing technology. Finally, the designed protocol model is applied to the supply chain and the supplier performance is evaluated by using the fuzzy analytic hierarchy process (FAHP). The results show that the gas value of the designed protocol model is stable at 104,000 similar to 116,000 in blockchain transactions, and the execution time of a single blockchain transaction fluctuates between 4,300 and 6,100 ms. Therefore, the designed protocol model can effectively ensure the security of supply chain data during the transmission. The evaluation results of supplier performance suggest that the cooperative relationship between venture capital enterprises and suppliers is affected by many factors. Optimizing the supply chain structure and production activities can improve the performance of suppliers and venture capital enterprises. This work provides a reference for analyzing the performance of blockchain technology on venture capital enterprises and suppliers.

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】2022-08-24

【文献类型】 实证数据

【DOI】 10.1155/2022/2914936

【Author】 Arora, Deepanshu Gupta, Shashank Anpalagan, Alagan

【Source】WIRELESS PERSONAL COMMUNICATIONS

【影响因子】2.017

【主题类别】

区块链技术-协同技术-物联网

【Abstract】The uprising of Internet of Things (IoT) has dramatically influenced the world's technology in terms of interoperability, connectivity and interconnectivity with help of smart sensors, devices, objects, data and applications. General population aging, dearth of healthcare resources and upsurge in healthcare costs makes IoT advancements in healthcare all the more essential in order to confront these challenges. The revolution in IoT healthcare is redeveloping the healthcare sector in every aspect - social, technical and economical. This article presents a comprehensive survey on upcoming technologies helpful in healthcare 4.0 systems where the major focus is on emerging technologies like fog computing, cloud computing, machine learning and Bigdata analytics and that are all based on IoT based healthcare applications. In addition, the authors also provided an exhaustive survey on Wide Body Area Network (WBAN)-based IoT health care systems and discussed their network topology, architecture, platform, services and their applications. In addition, this study analyses IoT healthcare security challenges, possible threats, attack taxonomies and how blockchain technology can be helpful in countering these challenges. Lastly, exhaustive state-of-the-art technologies, challenges identified so far and possible future scope of this domain is also discussed in this survey.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】Fog computing; IoT; Cloud computing; Big data analytics; Machine learning; Blockchain; Wearables; WBANs

【发表时间】

【收录时间】2022-08-24

【文献类型】 观点阐述

【DOI】 10.1007/s11277-022-09932-3

【Author】 Azees, M. Rajasekaran, Arun Sekar Satti, Muhammad Islam

【Source】SECURITY AND COMMUNICATION NETWORKS CCF-C

【影响因子】1.968

【主题类别】

区块链应用-实体经济-其他

【Abstract】Anonymous authentication is a critical step in safeguarding vehicle privacy and security in VANETs. VANETs connected with blockchain are gaining popularity as a means to increase the effectiveness of anonymous authentication across many security domains. However, present blockchain-assisted authentication systems cannot successfully achieve anonymity since colluding RSUs or vehicles may acquire linkability via the same retrieved record, hence destroying anonymity. To solve the problem, the proposed work offers an unlinkable anonymous signature-based authentication for VANET to ensure collusion resistance. To provide V2R unlinkability, a trusted authority issues anonymous parameters that conceal the vehicle's identification from RSUs and other vehicles in the VANET system. The vehicle user produces anonymous signatures, and RSUs validate them during anonymous authentication. Moreover, the proposed authentication methods are based on an anonymous certificateless signature (ACS) approach that is computationally more efficient and provably safe against eternal forgery in the random oracle model. Additionally, the proposed work guarantees that neither an RSU nor a vehicle has the authority to divulge users' true identities. Hence, the proposed system has stringent unlinkability and better anonymity, and it enhances the efficiency of V2R and V2V communications considerably according to security analysis and performance assessment.

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】2022-08-24

【文献类型】 实验仿真

【DOI】 10.1155/2022/1222660

【Author】 Huang, Jie Wu, Dehua

【Source】SECURITY AND COMMUNICATION NETWORKS CCF-C

【影响因子】1.968

【主题类别】

区块链技术-协同技术-大数据

【Abstract】Blockchain is a distributed time-series database. Based on the blockchain platform, this paper designs the framework model of cloud storage and designs the cloud storage model based on homomorphic encryption based on the operation process of the model. According to the applicability of underlying blockchain storage, the HElib library is established as the algorithm for data privacy protection. The BGV homomorphic encryption algorithm is used as the bottom layer of the algorithm, and the efficiency of the BGV homomorphic encryption algorithm is compared with that of the Gentry's bootstrap-based homomorphic encryption algorithm. It is proved that the BGV algorithm is more suitable for big data.

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】2022-08-24

【文献类型】 实验仿真

【DOI】 10.1155/2022/8541313

【Author】 Reegu, Faheem Ahmad Abas, Hafiza Hakami, Zaid Tiwari, Sanatan Akmam, Rudzidatul Muda, Iskandar Almashqbeh, Hashem Ali Jain, Rituraj

【Source】SECURITY AND COMMUNICATION NETWORKS CCF-C

【影响因子】1.968

【主题类别】

区块链应用-实体经济-医疗领域

【Abstract】A peer-to-peer (P2P) decentralized information-sharing network is used to share data and maintain security, privacy, and integrity standards called blockchain. In this case, information sharing and updating require regular simplification. The presented systematic review mainly focuses on the interoperability of electronic health records (EHRs) using blockchain. Correspondingly, 18 blockchain-based solutions were selected to address the interoperability challenges of EHRs. The limitation of solutions includes reliability, privacy, integrity, sharing, and standards. This systematic review contains six phase's research question, research phase, article selection, abstract-based keyword, data extraction, and progress tracking. Various Web resources such as Google Scholar, Web of Science, and IEEE are used to extract the relevant manuscripts. Primarily, 18 articles were selected to present the interoperable requirements of EHRs using blockchain, standards of blockchain-based EHRs, and solutions for interoperability of EHRs using blockchain. The conducted study explains the best available interoperable blockchain-based EHR standards, implementations, applications, and challenges.

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】2022-08-24

【文献类型】 观点阐述

【DOI】 10.1155/2022/1953723

【Author】 Demi, Selina Sanchez-Gordon, Mary Kristiansen, Monica

【Source】JOURNAL OF SOFTWARE-EVOLUTION AND PROCESS

【影响因子】1.864

【主题类别】

区块链治理-市场治理-市场分析

【Abstract】Blockchain technology has emerged as a "disruptive innovation" that has received significant attention in academic and organizational settings. However, most of the existing research is focused on technical issues of blockchain systems, overlooking the organizational perspective. This study adopted a grounded theory to unveil the blockchain implementation process in organizations from the lens of blockchain experts. The results revealed three main categories: key activities, success factors, and challenges related to blockchain implementation in organizations, the latter being identified as the core category, along with 17 other concepts. Findings suggested that the majority of blockchain projects stop at the pilot stage and outlined organizational resistance to change as the core challenge. According to the experts, the following factors contribute to the organizational resistance to change: innovation-production gap, conservative management, and centralized mentality. The study aims to contribute to the existing blockchain literature by providing a holistic and domain-agnostic view of the blockchain implementation process in organizational settings. This can potentially encourage the development and implementation of blockchain solutions and guide practitioners who are interested in leveraging the inherent benefits of this technology. In addition, the results are used to improve a blockchain-enabled requirements traceability framework proposed in our previous paper.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】blockchain technology; grounded theory; interorganizational software projects; requirements traceability

【发表时间】

【收录时间】2022-08-24

【文献类型】 观点阐述

【DOI】 10.1002/smr.2493

【Author】 Liu, Haiqing Ai, Ming Huang, Rong Qiu, Rixuan Li, Yuancheng

【Source】CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE

【影响因子】1.831

【主题类别】

区块链技术-协同技术-隐私计算

【Abstract】Device identity authentication is the first line of defense for edge computing security mechanisms. Many authentication schemes are often accompanied by high communication and computational overhead. In addition, due to the continuous enhancement of network virtualization and dynamics, the security requirements for logical boundaries of many enterprise information systems "cloudification," and the huge data security challenges faced by enterprise core assets, all make the original "one-time authentication, all the way" trust model no longer reliable. Therefore, the paper proposes a local identity authentication and roaming identity authentication protocol based on a zero-trust architecture. First, we propose a revocable group signature scheme, the expiration time is bound to the key of each edge terminal device. According to this solution, since the identity authentication token generated by the expired key is invalid, it does not need to be included in the revocation list, which improves the efficiency of revocation checking. Compared with the current identity authentication protocol, this article not only builds a model based on the zero trust architecture, effectively solves the shortcomings of the network security protection architecture, but also considers the unforgeability of the expiration time, and realizes effective revocation and more efficient identity authentication.

你可以尝试使用大模型来生成摘要 立即生成

【Keywords】group signature; identity authentication; revocation; roaming authentication; zero trust

【发表时间】

【收录时间】2022-08-24

【文献类型】 理论模型

【DOI】 10.1002/cpe.7198

【Author】 Luo, Yong Tang, Yanhong

【Source】DISCRETE DYNAMICS IN NATURE AND SOCIETY

【影响因子】1.457

【主题类别】

区块链应用-虚拟经济-供应链金融

【Abstract】The authors took the financing warehouse in supply chain finance as an example, used the game between capital providers (banks and their entrusted logistics supervision enterprises) and capital demanders (core enterprises of supply chain, upstream suppliers, and downstream dealers) as the research object, and constructed the income matrices, respectively, and the Nash equilibrium of pure decision and mixed decision was calculated. The authors compared the game behavior of the participants in the traditional supply chain finance and the supply chain finance on the blockchain and the difference of the mixed decision Nash equilibrium whether blockchain rewards and punishment were added. When the rewards and punishment were added to encourage the transaction information placing in the blockchain, the Nash equilibrium point would be further away from the origin point, and the capital provider and the capital demander would choose to cooperate with greater probability. When the cost of the blockchain is gradually reduced, the two sides of the game choose to place the transaction information in the chain, which can improve the cooperation of the participants of the supply chain finance, and they can get more profit.

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【Keywords】

【发表时间】2022

【收录时间】2022-08-24

【文献类型】 实证数据

【DOI】 10.1155/2022/6706437