Supercharge Your Innovation With Domain-Expert AI Agents!

Privacy protection method for credit investigation system based on block chain

A privacy protection and blockchain technology, applied in the field of credit data security, can solve problems such as identity information leakage, achieve the effects of high efficiency of secure storage, short consumption time, and guarantee confidentiality

Pending Publication Date: 2022-02-08
HENAN UNIVERSITY
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the phenomenon of islanding between credit reporting systems and the leakage of identity information in the identity authentication method of credit reporting systems, the present invention provides a privacy protection method for credit reporting systems based on blockchain, which realizes credit reporting users, Secure sharing of credit data among multiple entities such as credit agencies and cloud service providers, while ensuring the confidentiality and availability of credit data

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Privacy protection method for credit investigation system based on block chain
  • Privacy protection method for credit investigation system based on block chain
  • Privacy protection method for credit investigation system based on block chain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the embodiment of the present invention provides a privacy protection method for a blockchain-based credit reporting system, including five entities: credit reporting users, financial institutions, credit reporting agencies, blockchain, and cloud service providers;

[0037] Credit Reporting Agencies: The present invention assumes that credit reporting agencies are trusted. The credit reporting agency CI has a large number of user credit reporting reports, and can securely own, control and conditionally provide the personal credit reporting information of credit reporting users, and obtain relevant fees in the process.

[0038] Credit reporting users: credit reporting users are typical data consumers. They need to pass identity authentication and entrust financial institutions to inquire about relevant credit information.

[0039] Blockchain: The smart contract in the blockchain BC can verify the identity of credit reporting users, and the bl...

Embodiment 2

[0054] The following is the credit user u i As an example, the privacy protection method of the credit reporting system based on the blockchain of the present invention will be described in detail. This solution is based on technologies such as blockchain, smart contracts, searchable symmetric encryption technology, and zero-knowledge proof zkSNARKs to realize credit reporting in the credit reporting system. User identity authentication and secure sharing of credit information data. The method comprises the steps of:

[0055] Step 1 System initialization

[0056] Step 1.1: Initialize and generate p, G p ; Among them, p is a large prime number, G p yes the only subgroup of

[0057] Step 1.2: Select generator g∈G p ,random number Security parameter λ and hash function

[0058] Step 1.3: Set credit reference user u i The public key is PK i , the private key is SK i ;

[0059] Step 1.4: The credit bureau CI selects the security parameter k, and uses the probabilist...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a privacy protection method for a credit investigation system based on a block chain. According to the method, credit investigation data security sharing among a plurality of entities such as a credit investigation user, a credit investigation mechanism and a cloud service provider is realized, and confidentiality, availability, tamper resistance and ciphertext searchability of the credit investigation data as well as fairness in credit investigation data query and identity authentication anonymity are guaranteed. The islanding problem of the credit investigation data is solved based on the block chain and the intelligent contract; anonymous identity authentication is realized on the basis of zero-knowledge proof under the condition that the privacy of the credit investigation user is not leaked; and based on a searchable symmetric encryption technology, ciphertext retrieval of the credit investigation data is realized.

Description

technical field [0001] The invention relates to the technical field of credit investigation data security, in particular to a privacy protection method for a credit investigation system based on blockchain. Background technique [0002] The traditional credit reporting system is dominated by a small number of credit reporting agencies, and the stored credit reporting information seriously cannot meet the needs of users. There is a phenomenon of islanding between credit information systems, and the formats of their credit information are also different. These conditions make it impossible to share credit information. In addition, the traditional credit information system relies on centralized servers. Once hackers attack, the entire system will not work. Credit information is sensitive personal privacy information, so the credit information system needs security and privacy protection. [0003] The identity authentication of the traditional credit information system will al...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/60G06F21/62G06F21/64
CPCG06F21/602G06F21/6245G06F21/64
Inventor 袁科鄢英杰张文超肖彤周素芳周柄材翟晨旭
Owner HENAN UNIVERSITY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com