Meta-Key: A Secure Data-Sharing Protocol Under Blockchain-Based Decentralized Storage Architecture

Li, Dagang; Du, Rong; Fu, Yue; Au, Man Ho

doi:10.1109/lnet.2019.2891998

Cited by 49 publications

(27 citation statements)

References 3 publications

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“…Li et al [19] proposed Meta-key, a data-sharing mechanism that enables users to share their encrypted data under a blockchain-based distributed storage architecture. For the blockchain expansion problem, the scheme only extracts and stores some metadata, and the data and metadata are encrypted by the data owner.…”

Section: B Overview Of Applications Of Blockchain In Trusted Sharingmentioning

confidence: 99%

DNSTSM: DNS Cache Resources Trusted Sharing Model Based on Consortium Blockchain

Xue

Fan

et al. 2020

IEEE Access

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The inseparable internet requirements and the endless stream of cyber-attacks have led to strong demand for trusted IP addresses. However, the existing collaborative DNS security schemes have the defects of low credibility and imperfect incentive mechanism. Enlightened by the Consortium blockchain technology, we propose a novel DNS Cache Resources Trusted Sharing Model, which can improve the credibility of DNS resolution results by establishing a complete chain of trust. Firstly, the consortium blockchain is introduced as the carrier of the peer-to-peer network to reduce the impact of illegal access and complicity tampering on the DNS cache credibility; Secondly, the evaluation index of the node credibility in the DNS cache sharing model is proposed, and the trust-based incentive mechanism is designed to reduce the impact of free-riding behavior and on the trusted performance of the system. The two indicators of node abnormal behavior similarity and roundtrip time between nodes are used to comprehensively evaluate the degree of recommendation of the node and serve as the basis for dynamic scheduling; Finally, we use the stochastic distributed decentralized storage mechanism to solve the problem of low efficiency in the consortium blockchain. The simulation results show that the model has certain advantages in ensuring the credibility of domain name resolution results, and maintains the ideal efficiency while ensuring trust. INDEX TERMS Blockchain, consortium blockchain, DNS security, sharing model.

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Section: B Overview Of Applications Of Blockchain In Trusted Sharingmentioning

confidence: 99%

DNSTSM: DNS Cache Resources Trusted Sharing Model Based on Consortium Blockchain

Xue

Fan

et al. 2020

IEEE Access

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“…All the coronavirus data from hospitals, clinical labs, patient-generated data (IoT sensors and mobile operators), and several other sources are combined to construct a primary dataset that subsequently leads to big data. These big data are encrypted and stored in a decentralized storage system by utilizing privacy and security features [67,68]. In a decentralized storage system, the data are distributed into different chunks and stored inside various nodes of a P2P network, instead of storing all the coronavirus-related data in a centralized server.…”

Section: The Proposed Patient-centric Frameworkmentioning

confidence: 99%

A Blockchain and Artificial Intelligence-Based, Patient-Centric Healthcare System for Combating the COVID-19 Pandemic: Opportunities and Applications

Jabarulla

Lee

2021

Healthcare

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The world is facing multiple healthcare challenges because of the emergence of the COVID-19 (coronavirus) pandemic. The pandemic has exposed the limitations of handling public healthcare emergencies using existing digital healthcare technologies. Thus, the COVID-19 situation has forced research institutes and countries to rethink healthcare delivery solutions to ensure continuity of services while people stay at home and practice social distancing. Recently, several researchers have focused on disruptive technologies, such as blockchain and artificial intelligence (AI), to improve the digital healthcare workflow during COVID-19. Blockchain could combat pandemics by enabling decentralized healthcare data sharing, protecting users’ privacy, providing data empowerment, and ensuring reliable data management during outbreak tracking. In addition, AI provides intelligent computer-aided solutions by analyzing a patient’s medical images and symptoms caused by coronavirus for efficient treatments, future outbreak prediction, and drug manufacturing. Integrating both blockchain and AI could transform the existing healthcare ecosystem by democratizing and optimizing clinical workflows. In this article, we begin with an overview of digital healthcare services and problems that have arisen during the COVID-19 pandemic. Next, we conceptually propose a decentralized, patient-centric healthcare framework based on blockchain and AI to mitigate COVID-19 challenges. Then, we explore the significant applications of integrated blockchain and AI technologies to augment existing public healthcare strategies for tackling COVID-19. Finally, we highlight the challenges and implications for future research within a patient-centric paradigm.

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“…The distributed storage nodes remove the need for a centralized repository. A data-sharing mechanism called Meta-Key is proposed in Reference [74], which shares encrypted data based on the distributed storage compatible architecture of blockchain. It allows users to encrypt data with their own public keys and store the keys to the dedicated storage nodes in a blockchain network.…”

Section: Application Of Blockchain-empowered Data-driven Network 51 Decentralized Data Sharing and Data Privacymentioning

confidence: 99%

Blockchain-empowered Data-driven Networks

Wang

Leung

et al. 2021

ACM Comput. Surv.

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The paths leading to future networks are pointing towards a data-driven paradigm to better cater to the explosive growth of mobile services as well as the increasing heterogeneity of mobile devices, many of which generate and consume large volumes and variety of data. These paths are also hampered by significant challenges in terms of security, privacy, services provisioning, and network management. Blockchain, which is a technology for building distributed ledgers that provide an immutable log of transactions recorded in a distributed network, has become prominent recently as the underlying technology of cryptocurrencies and is revolutionizing data storage and processing in computer network systems. For future data-driven networks (DDNs), blockchain is considered as a promising solution to enable the secure storage, sharing, and analytics of data, privacy protection for users, robust, trustworthy network control, and decentralized routing and resource managements. However, many important challenges and open issues remain to be addressed before blockchain can be deployed widely to enable future DDNs. In this article, we present a survey on the existing research works on the application of blockchain technologies in computer networks and identify challenges and potential solutions in the applications of blockchains in future DDNs. We identify application scenarios in which future blockchain-empowered DDNs could improve the efficiency and security, and generally the effectiveness of network services.

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Meta-Key: A Secure Data-Sharing Protocol Under Blockchain-Based Decentralized Storage Architecture

Cited by 49 publications

References 3 publications

DNSTSM: DNS Cache Resources Trusted Sharing Model Based on Consortium Blockchain

DNSTSM: DNS Cache Resources Trusted Sharing Model Based on Consortium Blockchain

A Blockchain and Artificial Intelligence-Based, Patient-Centric Healthcare System for Combating the COVID-19 Pandemic: Opportunities and Applications

Blockchain-empowered Data-driven Networks

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