Partitioning Attacks on Bitcoin: Colliding Space, Time, and Logic

Saad, Muhammad; Cook, Victor; Nguyen, L.D.; Thai, My T.; Mohaisen, Aziz

doi:10.1109/icdcs.2019.00119

Cited by 39 publications

(22 citation statements)

References 18 publications

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“…In double spending multiple transactions with the same cryptocurrency are performed by a user [131,132]. This transaction is broadcast to each node in that network.…”

Section: Double Spendingmentioning

confidence: 99%

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Research and Applied Perspective to Blockchain Technology: A Comprehensive Survey

et al. 2021

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Blockchain being a leading technology in the 21st century is revolutionizing each sector of life. Services are being provided and upgraded using its salient features and fruitful characteristics. Businesses are being enhanced by using this technology. Countries are shifting towards digital currencies i.e., an initial application of blockchain application. It omits the need of central authority by its distributed ledger functionality. This distributed ledger is achieved by using a consensus mechanism in blockchain. A consensus algorithm plays a core role in the implementation of blockchain. Any application implementing blockchain uses consensus algorithms to achieve its desired task. In this paper, we focus on provisioning of a comparative analysis of blockchain’s consensus algorithms with respect to the type of application. Furthermore, we discuss the development platforms as well as technologies of blockchain. The aim of the paper is to provide knowledge from basic to extensive from blockchain architecture to consensus methods, from applications to development platform, from challenges and issues to blockchain research gaps in various areas.

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“…In double spending multiple transactions with the same cryptocurrency are performed by a user [131,132]. This transaction is broadcast to each node in that network.…”

Section: Double Spendingmentioning

confidence: 99%

“…This transaction is broadcast to each node in that network. This transaction needs to be confirmed by the nodes, this confirmation is time consumable [131]. This time between two transactions' initiation and confirmation can be a window for the attacker to quickly launch his/her attack [133,134].…”

Section: Double Spendingmentioning

confidence: 99%

Research and Applied Perspective to Blockchain Technology: A Comprehensive Survey

et al. 2021

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“…Typically, the mining pool uses the stratum overlay protocol server that has a public IP address, which is vulnerable to routing attack and flood attacks due to the open public IP address. According to research by Apostolaki et al [69] and Saad et al [70], the impact of these BGP hijacking and routing attacks is severe such that the network hash rate can be reduced up to 50% due to the hijacking. Besides, the block propagation time of Bitcoin network can increase up to 20 mins by routing attacks.…”

Section: F Vdr Partitioning / Icn Attack (A 17 )mentioning

confidence: 99%

A Security Analysis of Blockchain-Based Did Services

et al. 2021

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Decentralized identifiers (DID) has shown great potential for sharing user identities across different domains and services without compromising user privacy. DID is designed to enable the minimum disclosure of the proof from a user's credentials on a need-to-know basis with a contextualized delegation. At first glance, DID appears to be well-suited for this purpose. However, the overall security of DID has not been thoroughly examined. In this paper, we systemically explore key components of DID systems and analyze their possible vulnerabilities when deployed. First, we analyze the data flow between DID system components and analyze possible security threats. Next, we carefully identify potential security threats over seven different DID functional domains, ranging from user wallet to universal resolver. Lastly, we discuss the possible countermeasures against the security threats we identified.

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“…Proof‐of‐work . The PoW consensus protocol involves solving a computationally expensive challenge to elect a leader [21]. In PoW‐based systems, the leader is also called a miner, who solves the challenge, orders transactions in a block, and broadcasts the block to the network.…”

Section: Background and Preliminariesmentioning

confidence: 99%

Empirically comparing the performance of blockchain's consensus algorithms

et al. 2021

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Blockchain‐based audit systems suffer from low scalability and high message complexity. The root cause of these shortcomings is the use of “Practical Byzantine Fault Tolerance” (PBFT) consensus protocol in those systems. Alternatives to PBFT have not been used in blockchain‐based audit systems due to the limited knowledge about their functional and operational requirements. Currently, no blockchain testbed supports the execution and benchmarking of different consensus protocols in a unified testing environment. This paper demonstrates building a blockchain testbed that supports the execution of five state‐of‐the‐art consensus protocols in a blockchain system; namely PBFT, Proof‐of‐Work (PoW), Proof‐of‐Stake (PoS), Proof‐of‐Elapsed Time (PoET), and Clique. Performance evaluation of those consensus algorithms is carried out using data from a real‐world audit system. These results show that the Clique protocol is best suited for blockchain‐based audit systems, based on scalability features.

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Partitioning Attacks on Bitcoin: Colliding Space, Time, and Logic

Cited by 39 publications

References 18 publications

Research and Applied Perspective to Blockchain Technology: A Comprehensive Survey

Research and Applied Perspective to Blockchain Technology: A Comprehensive Survey

A Security Analysis of Blockchain-Based Did Services

Empirically comparing the performance of blockchain's consensus algorithms

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