1. A blockchain-based loan over-prevention mechanism
- Author
-
Sijia Yang, Zhou Lijing, Li Lixiang, Hu Xiaoya, and Licheng Wang
- Subjects
050101 languages & linguistics ,Information privacy ,Blockchain ,Information sharing ,05 social sciences ,02 engineering and technology ,Computer security ,computer.software_genre ,Information asymmetry ,Order (business) ,Loan ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,0501 psychology and cognitive sciences ,Business ,Leakage (economics) ,Relevant information ,computer - 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.
- Published
- 2019