A Reliable Storage Partition for Permissioned Blockchain

Qi, Xiaodong; Zhang, Zhao; Jin, Cheqing; Zhou, Aoying

doi:10.1109/tkde.2020.3012668

Cited by 37 publications

(19 citation statements)

References 16 publications

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“…Due to the full-replication data storage mechanism in existing BC technologies, this produces scalability problems due to copying at each node, thus increases overall storage per-block [ 45 ]. Additionally, this mechanism can limit throughput in a permissioned BC.…”

Section: Cybersecurity Data Privacy and Blockchainmentioning

confidence: 99%

Cybersecurity, Data Privacy and Blockchain: A Review

et al. 2022

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In this paper, we identify and review key challenges to bridge the knowledge-gap between SME’s, companies, organisations, businesses, government institutions and the general public in adopting, promoting and utilising Blockchain technology. The challenges indicated are Cybersecurity and Data privacy in this instance. Additional challenges are set out supported by literature, in researching data security management systems and legal frameworks to ascertaining the types and varieties of valid encryption, data acquisition, policy and outcomes under ISO 27001 and the General Data Protection Regulations. Blockchain, a revolutionary method of storage and immutability, provides a robust storage strategy, and when coupled with a Smart Contract, gives users the ability to form partnerships, share information and consent via a legally-based system of carrying out business transactions in a secure digital domain. Globally, ethical and legal challenges significantly differ; consent and trust in the public and private sectors in deploying such defensive data management strategies, is directly related to the accountability and transparency systems in place to deliver certainty and justice. Therefore, investment and research in these areas is crucial to establishing a dialogue between nations to include health, finance and market strategies that should encompass all levels of society. A framework is proposed with elements to include Big Data, Machine Learning and Visualisation methods and techniques. Through the literature we identify a system necessary in carrying out experiments to detect, capture, process and store data. This includes isolating packet data to inform levels of Cybersecurity and privacy-related activities, and ensuring transparency demonstrated in a secure, smart and effective manner.

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Section: Cybersecurity Data Privacy and Blockchainmentioning

confidence: 99%

Cybersecurity, Data Privacy and Blockchain: A Review

et al. 2022

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“…The BFT-Store scheme [7] proposed by the Qi team provides a method to combine blockchain with erasure code technology. It performs erasure coding on the complete blockchain data and stores erasure coding chunks on different nodes, and this greatly reduces the storage overhead.…”

Section: Motivationmentioning

confidence: 99%

“…Every time to read a block, users cannot read it directly but need to collect enough chunks that the block generates from the network and combine or decode for reading, resulting in poor reading performance [15]. Xiaodong Qi's team has also proposed a solution combining erasure code with blockchain [7]. Different from the Perard D team, the Qi team did not encode a block into individual chunks, but unified coding after collecting certain blocks.…”

Section: Related Workmentioning

confidence: 99%

CLEC: Combination Locality Based Erasure Code for Permissioned Blockchain Storage

Wu¹,

Yang²,

Liu³

et al. 2022

Computers, Materials &Amp; Continua

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Building a new decentralized domain name system based on blockchain technology is helping to solve problems, such as load imbalance and over-dependence on the trust of the central node. However, in the existing blockchain storage system, the storage overhead is very high due to its fullreplication data storage mechanism. The total storage consumption for each block is up to O(n) with n nodes. Erasure code applied to blockchains can significantly reduce the storage overhead, but also greatly lower the read performance. In this study, we propose a novel coding scheme for blockchain storage, Combination Locality based Erasure Code for Permissioned blockchain storage (CLEC). CLEC uses erasure code, parity locality, and topology locality in blockchain storage, greatly reducing reading latency and repair time. In CLEC, the storage consumption per block can be reduced to O(1), and the repair penalty can also be lowered to O(1). Experiments in an open-source permissioned blockchain Tendermint show that CLEC has a maximum repair speed of 6 times and a read speed of nearly 1.7 times with storage overhead of only 1.17 times compared to the current work, a great improvement in reading performance and repair performance with slightly increased storage overhead via implementation.

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“…Most of the applications in blockchains use cloud services for storage due to the need for large storage capacity and computational resources [58]. Several centralized data storage schemes has been proposed, still there is a vulnerability to DoS attacks and the untrusted nature of cloud service providesr leads to the proposal of a blockchain-based decentralized storage scheme.…”

Section: Challengesmentioning

confidence: 99%

Approaches towards Blockchain Innovation: A Survey and Future Directions

2021

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A blockchain is a decentralized peer to peer platform which provides security services based on some key concepts, namely authentication, confidentiality, integrity and authorization. It is the process of recording and keeping track of the resources without the intervention of a centralized authority. This paper provides an overview of blockchains, the structure of blockchains, consensus algorithms, etc., It compares the algorithms based on their utility and limitations. Though blockchains provide secure communication, there are some minimal data leaks which are discussed. Various security issues in blockchains are discussed such as denial of service attacks, etc., In addition to security, some other blockchain challenges are presented like scalability, reliability, interoperability, privacy and consensus mechanisms for integration with AI, IoT and edge computing. This paper also explains about the importance of blockchains in the fields of smart healthcare, smart grid, and smart financial systems. Overall, this paper gives the glimpse of various protocols, algorithms, applications, challenges and opportunities that are found in the blockchain domain.

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A Reliable Storage Partition for Permissioned Blockchain

Cited by 37 publications

References 16 publications

Cybersecurity, Data Privacy and Blockchain: A Review

Cybersecurity, Data Privacy and Blockchain: A Review

CLEC: Combination Locality Based Erasure Code for Permissioned Blockchain Storage

Approaches towards Blockchain Innovation: A Survey and Future Directions

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