Anonymous identity management and verification method supporting dynamic change of user attributes

A technology of dynamic change and identity management, applied in the field of blockchain, it can solve the problems of unforgeability and the inability to obtain the real identity of users, so as to achieve the effect of identity management and verification, preventing collusion attacks and protecting privacy.

Pending Publication Date: 2021-11-16
INST OF INFORMATION ENG CHINESE ACAD OF SCI
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the signature verification process, any third party cannot obtain the real identity of the user from the message and the signature of the message
[0021] (3) Unforgeability
At present, there is no existing method or system that can solve the above problems in the alliance chain, so further research is needed

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
  • Anonymous identity management and verification method supporting dynamic change of user attributes
  • Anonymous identity management and verification method supporting dynamic change of user attributes
  • Anonymous identity management and verification method supporting dynamic change of user attributes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] In order to make the technical solution of the present invention more comprehensible, specific embodiments and accompanying drawings are described in detail as follows.

[0071] This embodiment proposes a distributed and traceable anonymous authentication method suitable for alliance chains, which is applied to blockchain network systems, such as figure 1 As shown, the system includes users, attribute institutions and blockchain service providers. Property authorities are responsible for maintaining their property sets, generating property keys and public keys, and generating property signing keys for users. Different agencies are responsible for different attributes. Users are given corresponding attributes, there may be one or more. Through the management and verification of these attributes, the user identity management and verification are realized. Blockchain service providers provide an open platform for transactions between users. All transaction information ...

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 discloses an anonymous identity management and verification method supporting dynamic change of user attributes, which belongs to the field of block chains and mainly comprises four steps of system initialization, generation and updating of an attribute signature key, signature generation and signature verification. According to the method, the problems in the prior art can be effectively solved, management and verification of the user identity can be realized under the condition that the user identity is not leaked, and the process does not depend on a central trust mechanism, so that the method is well suitable for a distributed scene.

Description

technical field [0001] The invention relates to an anonymous identity management and verification method that supports dynamic changes of user attributes, and belongs to the field of block chains. Background technique [0002] In recent years, blockchain technology has become a hot research topic. Blockchain refers to a technical solution for collectively maintaining a reliable database through decentralization and trustlessness. This technical solution allows any number of nodes participating in the system to calculate and record all the information exchange data in the system for a period of time into a data block (block) through cryptographic algorithms, and generate the fingerprint of the data block for linking ( chain) next data block and verification, all participating nodes of the system will jointly determine whether the record is true. [0003] The four main properties of blockchain are: [0004] (1) Decentralized. There is no centralized hardware or management ...

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): G06F21/62G06F21/31G06F21/46
CPCG06F21/6218G06F21/31G06F21/46
Inventor 苏倩倩章睿薛锐孙优
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap