期刊
IEEE TRANSACTIONS ON NETWORK AND SERVICE MANAGEMENT
卷 19, 期 4, 页码 5383-5394出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNSM.2022.3195064
关键词
Blockchains; Plasmas; Costs; Contracts; Security; Finance; Delays; Decentralized applications; blockchains; smart contracts
资金
- Imperial College London President's Ph.D. Scholarship program
This paper presents a mechanism for adaptive cutoffs to address the issue of blockchain congestion in smart-contracts. Additionally, disputable cutoffs are introduced as a more efficient approach. Empirical evidence demonstrates that an adaptive-cutoff/disputable-cutoff-enabled smart-contract can receive more critical transactions when user responsiveness is slowed.
To guarantee delivery of their intended functionalities in the presence of unresponsive parties, current smart-contracts cut users off from being able to commit their responses after a fixed period of time has elapsed. However, current blockchains have limited transaction processing capacities, so a fixed amount of time will not always be sufficient to receive every critical transaction (C-TX). This paper presents a mechanism for adaptive cutoffs (ACs) which ensures that users retain the opportunity to commit C-TXs despite blockchain congestion, and enables early cutoffs when the number of required C-TXs is low. A non-interactive argument system for setting adaptive cutoffs under the current Ethereum Virtual Machine is described. Additionally, disputable cutoffs (DCs) are presented, which are a more efficient approach used in parallel to ACs based on a bisection-based dispute. Furthermore, it's empirically demonstrated that an AC/DC-enabled smart-contract can receive a larger number of C-TXs than its non-adaptive counterparts when user responsiveness is slowed due to denial of service or congestion.
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