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.
翻译：闪存贷款是分散化金融生态系统中的一种新兴服务,它允许用户申请非抵押贷款。它提供了方便,同时也使袭击者能够以他们不具备的大量资产发起恶意行动。虽然有关于利用闪存贷款进行袭击的现场媒体报道,但对现有的闪存贷款服务缺乏全面了解。在这项工作中,我们首先研究三个流行平台提供的闪存贷款服务。具体地说,我们首先说明闪存贷款提供者和用户之间的互动。然后,我们设计三种模式,以确定闪存贷款交易。根据模式,确定了76 303项交易。评价结果显示闪存贷款服务随着时间的推移越来越受欢迎。最后,我们用现实世界的例子介绍了四个闪存贷款应用程序,并提出了两个潜在的研究方向。
相关内容
微信扫码咨询专知VIP会员