A block chain privacy protection scheme and system based on SM9 algorithm

A technology of privacy protection and block chain, which is applied in the field of privacy protection scheme and system architecture design based on the alliance block chain, can solve the problem that the block chain structure is difficult to apply to real scenarios, etc., to reduce authority and workload, and reduce work The effect of increasing the amount and increasing the degree of decentralization

Inactive Publication Date: 2019-03-01
BEIJING ANRUSHAN CULTURE TECH
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] (1) Solve the problem that the blockchain architecture is difficult to apply to real scenarios

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
  • A block chain privacy protection scheme and system based on SM9 algorithm
  • A block chain privacy protection scheme and system based on SM9 algorithm
  • A block chain privacy protection scheme and system based on SM9 algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of the present invention is not limited in any way.

[0020] The present invention adopts a blockchain node privacy protection scheme. In the alliance blockchain environment, a privacy protection transaction platform based on the alliance chain is constructed, which can realize the protection of node identity privacy and ensure the legitimacy of block generation. At the same time, the work weight of the main nodes in the alliance blockchain is reduced, and the degree of decentralization is higher. The designed blockchain privacy protection scheme based on the SM9 algorithm and the overall system architecture are as follows: figure 1 shown.

[0021] The main node is responsible for maintaining blockchain parameters and historical data, initializing the parameters of the SM9 multi-KGC signature algorithm and group signature...

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 a block chain privacy protection scheme and a block chain privacy protection system based on an SM9 commercial cryptographic algorithm in China, belonging to the field of blockchain security and privacy protection. This invention provides an inter-node transaction platform based on federation chain, defines the permissions and functions of various nodes in the platform, and supports node transaction, information verification, parameter maintenance, block generation and other functions. This invention describes an improved SM9 multi-KGC (Key Generation Center) signaturealgorithm, which improves the working mode of single KGC in SM9 algorithm, adapts to the federation chain structure, and adopts this algorithm to determine the identity of the opposite party in the transaction between nodes. A group signature scheme based on SM9 algorithm is proposed. The identity verification of SM9 algorithm is improved to group signature verification, which effectively protects the identity privacy of the signatory. The transaction information is signed by the node through the algorithm and written into the block chain after the transaction, which can effectively hide theidentity information of both parties of the transaction, protecting the privacy of the node and ensuring the legitimacy of the transaction.

Description

technical field [0001] The invention belongs to the field of blockchain security and privacy protection, and specifically relates to a privacy protection scheme and system architecture design based on an alliance blockchain. Background technique [0002] Due to its "decentralization" and "de-trust" characteristics, blockchain technology can safely transmit information between unfamiliar nodes without the participation of a trusted third party, thereby effectively improving the efficiency of information interaction. Reduce interaction costs and have broad application prospects in Bitcoin, supply chain and other fields. Hash algorithms and digital signature algorithms are widely used in the blockchain to verify the correctness of blocks and transactions. When the blockchain is applied in actual scenarios, not only the public key addresses of nodes need to be verified, but also the true identity of each node should be verified. The traditional PKI system does not conform to t...

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): G06Q20/38G06Q20/40G06F21/64
CPCG06Q20/3829G06F21/64G06Q20/4014
Inventor 杨亚涛蔡居良张筱薇黄洁润赵阳
Owner BEIJING ANRUSHAN CULTURE TECH
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