论文标题
迈向了解Flash Loan及其在Defi生态系统中的应用的第一步
Towards A First Step to Understand Flash Loan and Its Applications in DeFi Ecosystem
论文作者
论文摘要
Flash Loan作为分散融资生态系统中的新兴服务，允许用户要求非合金贷款。在提供便利的同时，它还使攻击者能够使用他们没有的大量资产发起恶意运营。尽管存在现场媒体报道有关利用Flash贷款的攻击报告，但对现有的Flash Loan服务缺乏全面的了解。在这项工作中，我们迈出的第一步来研究由三个流行平台提供的闪存贷款服务。具体来说，我们首先说明了Flash贷款提供商与用户之间的交互。然后，我们设计了三种模式来识别闪存贷款交易。根据模式，确定了76、303的交易。评估结果表明，随着时间的推移，Flash贷款服务变得越来越受欢迎。最后，我们提出了四个带有现实世界示例的Flash贷款申请，并提出了两个潜在的研究指示。
Flash Loan, as an emerging service in the decentralized finance ecosystem, allows users to request a non-collateral loan. While providing convenience, it also enables attackers to launch malicious operations with a large amount of asset that they do not have. Though there exist spot media reports of attacks that leverage Flash Loan, there lacks a comprehensive understanding of existing Flash Loan services. In this work, we take the first step to study the Flash Loan service provided by three popular platforms. Specifically, we first illustrate the interactions between Flash Loan providers and users. Then, we design three patterns to identify Flash Loan transactions. Based on the patterns, 76, 303 transactions are determined. The evaluation results show that the Flash Loan services get more popular over time. At last, we present four Flash Loan applications with real-world examples and propose two potential research directions.
