A blockchain-based loan over-prevention mechanism

  • Xiaoya Hu
  • , Licheng Wang
  • , Lijing Zhou
  • , Lixiang Li
  • , Sijia Yang

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

1 Citation (Scopus)

Abstract

Information sharing solves the problem of information asymmetry between banks to a certain extent, but it also brings about the leakage of customer privacy. Therefore, how to protect data privacy while sharing data is an urgent issue. Blockchain protects the privacy of accounts and data while sharing data. Therefore, we propose a blockchain-based loan over-prevention mechanism. The program can hide the customer loan/repayment amount and thus protect the customer's privacy; we prove that the customer's loan amount is within a certain range and does not exceed the remaining loanable amount via a range proof. In order to share customer loan information between banks, we store the commitment of customers' amounts in the blockchain, and banks can obtain relevant information directly from the chain, which also reduces the amount of communication between banks. Finally, we implement the model and performe a performance analysis.

Original languageEnglish
Title of host publication2019 17th International Conference on Privacy, Security and Trust, PST 2019 - Proceedings
EditorsAli Ghorbani, Indrakshi Ray, Arash Habibi Lashkari, Jie Zhang, Rongxing Lu
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728132655
DOIs
Publication statusPublished - Aug 2019
Externally publishedYes
Event17th International Conference on Privacy, Security and Trust, PST 2019 - Fredericton, Canada
Duration: 26 Aug 201928 Aug 2019

Publication series

Name2019 17th International Conference on Privacy, Security and Trust, PST 2019 - Proceedings

Conference

Conference17th International Conference on Privacy, Security and Trust, PST 2019
Country/TerritoryCanada
CityFredericton
Period26/08/1928/08/19

Keywords

  • blockchain
  • loan over-prevention
  • privacy protection

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