Title:
PRIVACY PROTECTION AND IDENTITY MANAGEMENT METHOD AND SYSTEM FOR MULTI-MODE IDENTIFIER NETWORK
Document Type and Number:
WIPO Patent Application WO/2020/113546
Kind Code:
A1
Abstract:
The present invention is applicable to the technical field of blockchains. Provided is a privacy protection and identity management method for a multi-mode identifier network. The method comprises: S1, utilizing blockchain technology to register network identifiers, forming a multi-mode identifier network, and performing domain division to construct a hierarchical blockchain system; S2, employing a group/ring signature mechanism to combine, according to differences in the identification of respective nodes in the multi-mode identifier network, respective node signatures into a signature tree structure; and S3, performing authentication on a given higher-level node signature in the signature tree structure to realize authentication of a lower-level node signature by taking said signature as a root in the signature tree structure. The present invention employs a group/ring signature technique to realize identity privacy protection for members. A manager node and ordinary nodes form a group so as to generate an upper-level group signature for multiple transactions. At the same time, the manager node and member nodes also form a ring so as to create an upper-level ring signature for multiple voting messages.
Inventors:
LI HUI (CN)
WANG HAN (CN)
WU JIANGXING (CN)
ZHU FUSHENG (CN)
YI PENG (CN)
AN HUIYAO (CN)
ZHANG XINCHUN (CN)
WANG ZIXIAN (CN)
WANG HAN (CN)
WU JIANGXING (CN)
ZHU FUSHENG (CN)
YI PENG (CN)
AN HUIYAO (CN)
ZHANG XINCHUN (CN)
WANG ZIXIAN (CN)
Application Number:
PCT/CN2018/119724
Publication Date:
June 11, 2020
Filing Date:
December 07, 2018
Export Citation:
Assignee:
UNIV PEKING SHENZHEN GRADUATE SCHOOL (CN)
CHINA NATIONAL DIGITAL SWITCHING SYSTEM ENGINEERING & TECH R&D CENTER (CN)
CHINA NATIONAL DIGITAL SWITCHING SYSTEM ENGINEERING & TECH R&D CENTER (CN)
International Classes:
H04L29/06
Foreign References:
| CN108259438A | 2018-07-06 | |||
| CN102055769A | 2011-05-11 | |||
| CN101325481A | 2008-12-17 | |||
| US20180341775A1 | 2018-11-29 |
Attorney, Agent or Firm:
SZ KINDWALF INTELLECTUAL PROPERTY FIRM (CN)
Download PDF: