ZeroLender: Trustless Peer-to-Peer Bitcoin Lending Platform

Yi Xie, Joshua Holmes, Gaby G. Dagher

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Since its inception a decade ago, Bitcoin and its underlying blockchain technology have been garnering interest from a large spectrum of financial institutions. Although it encompasses a currency, a payment method, and a ledger, Bitcoin as it currently stands does not support bitcoins lending. In this paper, we present a platform called ZeroLender for peer-to-peer lending in Bitcoin. Our protocol utilizes zero-knowledge proofs to achieve unlinkability between lenders and borrowers while securing payments in both directions against potential malicious behaviour of the ZeroLender as well as the lenders, and prove by simulation that our protocol is privacy-preserving. Based on our experiments, we show that the runtime and transcript size of our protocol scale linearly with respect to the number of lenders and repayments.

Original languageAmerican English
Title of host publicationCODASPY 2020:
Subtitle of host publicationProceedings of the 10th ACM Conference on Data and Application Security and Privacy
Pages247-258
Number of pages12
ISBN (Electronic)9781450371070
DOIs
StatePublished - Mar 2020
Event10th ACM Conference on Data and Application Security and Privacy, CODASPY 2020 - New Orleans, United States
Duration: 16 Mar 202018 Mar 2020

Publication series

NameProceedings of the ACM Conference on Data and Application Security and Privacy
PublisherAssociation for Computing Machinery

Conference

Conference10th ACM Conference on Data and Application Security and Privacy, CODASPY 2020
Country/TerritoryUnited States
CityNew Orleans
Period16/03/2018/03/20

Keywords

  • P2P lending
  • banking
  • bitcoin
  • zero knowledge protocols

EGS Disciplines

  • Computer Sciences

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