Increased block size and Bitcoin blockchain dynamics

Göbel, Johannes; Krzesinski, A. E.

doi:10.1109/atnac.2017.8215367

Cited by 73 publications

(39 citation statements)

References 3 publications

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“…On the other hand, reducing difficulty will reduce the block time but it will increase the number of orphaned blocks in the system and the overall size of the Blockchain. At the time of writing this paper, Bitcoin and Ethereum Blockchain size was recorded to be 162 GB and 450 GB, respectively [146]. Saad et al [33] proposed fee-based and age-based countermeasures to prevent DDoS attack on Blockchain mempools.…”

Section: H Countering Peer-to-peer Attacksmentioning

confidence: 99%

Exploring the Attack Surface of Blockchain: A Comprehensive Survey

Saad

Spaulding

Njilla

et al. 2020

IEEE Commun. Surv. Tutorials

269

161

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In this paper, we systematically explore the attack surface of the Blockchain technology, with an emphasis on public Blockchains. Towards this goal, we attribute attack viability in the attack surface to 1) the Blockchain cryptographic constructs, 2) the distributed architecture of the systems using Blockchain, and 3) the Blockchain application context. To each of those contributing factors, we outline several attacks, including selfish mining, the 51% attack, Domain Name System (DNS) attacks, distributed denial-of-service (DDoS) attacks, consensus delay (due to selfish behavior or distributed denial-of-service attacks), Blockchain forks, orphaned and stale blocks, block ingestion, wallet thefts, smart contract attacks, and privacy attacks. We also explore the causal relationships between these attacks to demonstrate how various attack vectors are connected to one another. A secondary contribution of this work is outlining effective defense measures taken by the Blockchain technology or proposed by researchers to mitigate the effects of these attacks and patch associated vulnerabilities.

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Section: H Countering Peer-to-peer Attacksmentioning

confidence: 99%

Exploring the Attack Surface of Blockchain: A Comprehensive Survey

Saad

Spaulding

Njilla

et al. 2020

IEEE Commun. Surv. Tutorials

269

161

View full text Add to dashboard Cite

show abstract

“…Another method is to reduce the size of the block, although the speed of the node synchronization data can be increased, but this will make the capacity that was not enough to be smaller. These two solutions are like fighting in the left and right hands [28].…”

Section: System Structurementioning

confidence: 99%

Design of personnel big data management system based on blockchain

Chen

Song

2019

Future Generation Computer Systems

169

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h i g h l i g h t s• A method for solving blockchain information redundancy is proposed.• Analyze the shortcomings of the blockchain and the reasons for it. • Feasibility of combining blockchain with information management system. • Developed a prototype system to validate our ideas. a b s t r a c tWith the continuous development of information technology, enterprises, universities and governments are constantly stepping up the construction of electronic personnel information management system. The information of hundreds of thousands or even millions of people's information are collected and stored into the system. So much information provides the cornerstone for the development of big data, if such data is tampered with or leaked, it will cause irreparable serious damage. However, in recent years, electronic archives have exposed a series of problems such as information leakage, information tampering, and information loss, which has made the reform of personnel information management more and more urgent. The unique characteristics of the blockchain, such as non-tampering and traceability make it have great application potential in personnel information management, and can effectively solve many problems of traditional file management. However, the blockchain is limited by its own shortcomings such as small storage space and slow synchronization time, and cannot be directly applied to the big data field. This paper proposes a personnel management system based on blockchain, we analyzed the defects of the blockchain and proposed an improved method, constructs a novel data storage model of on-chain and out-of-chain that can effectively solve the problem of data redundancy and insufficient storage space. Based on this, we developed a prototype system with query, add, modify, and track personnel information, verified the feasibility of applying blockchain to personnel information management, explore the possibility of combining blockchain with big data.

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“…We removed eight DLT characteristics that did not comply with the relevance criteria, leading to a final set of 20 relevant DLT characteristics for the comparison process. For example, block creation interval was excluded because it is expressed in throughput and stale block rate [27], which can be directly mapped to application requirements.…”

Section: Scalabilitymentioning

confidence: 99%

Do Not Be Fooled: Toward a Holistic Comparison of Distributed Ledger Technology Designs

Gräbe¹,

Kannengießer²,

Lins³

et al. 2020

Proceedings of the Annual Hawaii International Conference on System Sciences

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Distributed Ledger Technology (DLT) enables a new way of inter-organizational collaboration via a shared and distributed infrastructure. There are plenty of DLT designs (e.g., Ethereum, IOTA), which differ in their capabilities to meet use case requirements. A structured comparison of DLT designs is required to support the selection of an appropriate DLT design. However, existing criteria and processes are abstract or not suitable for an in-depth comparison of DLT designs. We select and operationalize DLT characteristics relevant for a comprehensive comparison of DLT designs. Furthermore, we propose a comparison process, which enables the structured comparison of a set of DLT designs according to application requirements. The proposed process is validated with a use case analysis of three use cases. We contribute to research and practice by introducing ways to operationalize DLT characteristics and generate a process to compare different DLT designs according to their suitability in a use case.

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Increased block size and Bitcoin blockchain dynamics

Cited by 73 publications

References 3 publications

Exploring the Attack Surface of Blockchain: A Comprehensive Survey

Exploring the Attack Surface of Blockchain: A Comprehensive Survey

Design of personnel big data management system based on blockchain

Do Not Be Fooled: Toward a Holistic Comparison of Distributed Ledger Technology Designs

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