Secure Off-chain Payment in Consortium Blockchain System

Yang, Ling; Dong, Xuewen; Tong, Wei; Ma, Shiyang; Qiao, Hui; Xing, Siyu

doi:10.1109/nana51271.2020.00051

Cited by 6 publications

(5 citation statements)

References 7 publications

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“…It is argued that only up to two of the metrics can be improved simultaneously [16]. For example, compared to public blockchains, consortium blockchains yield higher scalability but compromise on security and reduce the extent of decentralization [17]. Moreover, the operational and standby miners in consortium blockchain systems can easily collude to attack the systems due to the limited number of miners.…”

Section: Background and Related Workmentioning

confidence: 99%

“…Here, we can solve (17) with Karush-Kuhn-Tucker (KKT) conditions [44]. Note that (17) implies two types of objective functions corresponding to T i (f n ) and T i (f n ).…”

Section: Sub-problem 1: Optimizementioning

confidence: 99%

“…Here, we can solve (17) with Karush-Kuhn-Tucker (KKT) conditions [44]. Note that (17) implies two types of objective functions corresponding to T i (f n ) and T i (f n ). Based on Appendix C, the solution of ( 17) corresponding to T i (f n ) is given by…”

Section: Sub-problem 1: Optimizementioning

confidence: 99%

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An Enhanced Block Validation Framework With Efficient Consensus for Secure Consortium Blockchains

Ni,

Asheralieva,

Kang

et al. 2024

IEEE Trans. Serv. Comput.

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Consortium blockchains have attracted considerable interest from academia and industry due to their low-cost installation and maintenance. However, typical consortium blockchains can be easily attacked by colluding block validators because of the limited number of miners in the systems. To address this problem, in this paper, we propose a novel block validation framework to enhance blockchain security. In the framework, the block validations are assisted and implemented by various lightweight nodes, e.g., edge devices, in addition to the typical blockchain miners. This improves the blockchain security but can cause an increased block validation delay and, thereby, reduced blockchain throughput. To tackle this challenge, we propose an effective method to select lightweight nodes based on their computing powers to maximize the blockchain throughput, and prove the uniqueness of the optimal nodes selection strategy. Security analysis and simulation results from the deployed consortium blockchain platform show that the proposed framework achieves higher throughput and security than the existing consortium blockchain models.

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Section: Background and Related Workmentioning

confidence: 99%

“…Here, we can solve (17) with Karush-Kuhn-Tucker (KKT) conditions [44]. Note that (17) implies two types of objective functions corresponding to T i (f n ) and T i (f n ).…”

Section: Sub-problem 1: Optimizementioning

confidence: 99%

See 1 more Smart Citation

An Enhanced Block Validation Framework With Efficient Consensus for Secure Consortium Blockchains

Ni,

Asheralieva,

Kang

et al. 2024

IEEE Trans. Serv. Comput.

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show abstract

“…This proposal also provides a dynamic refund extension, which allows the customer to add more funds to the channel. Some papers as [13], [14], [15] propose improvements to state channels systems used as payment channels. [13] achieves better efficiency using a method for connecting channels in contrast to the use of the routing transactions technique.…”

Section: State Of the Artmentioning

confidence: 99%

“…[14] proposes a reduction of the probability of the financial damage caused by fork attacks, using a third party that allows the user to go off-line. Finally, [15] proposes the use of off-chain payment channels on the consortium blockchain.…”

Section: State Of the Artmentioning

confidence: 99%

Transferable Channels for Fair Micropurchases

Payeras-Capellà,

Mut-Puigserver,

Pericàs-Gornals

2024

Preprint

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The development of e-commerce applications, involving small-value transactions for the exchange of goods or services introduces notable security and privacy challenges. Micropurchases, commonly referred to as micropayments, offer a pragmatic solution that provides a balance between efficiency and security for small-value transactions. The increasing demand for this payment approach, particularly with the advent of technologies such as the Internet of Things (IoT), underscores the need for innovative solutions.This paper introduces a novel micropurchase protocol making use of transferable payment channels. The protocol facilitates equitable and fair exchanges betweenminimal monetary units (μ-coins) and desired goods or services, allowing efficient payments of low values. The proposed transferable channels enable off-chain transactions, minimizing the reliance on on-chain transactions to achieve essential security features. The protocol defines the process of performing purchases, handling received payments, incorporating functionalities for the transfer and reutilization of payment channels for both customers and merchants. Furthermore, the proposed scheme specifies the procedures for redeeming the earned μ-coins by the merchant and refundingthe unused μ-coins by the customer.

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