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Blockchain certificate processing method and system

A processing method and blockchain technology, applied in the blockchain field, can solve problems such as user privacy leakage, achieve high processing efficiency, protect user identity privacy, and achieve the effect of security

Active Publication Date: 2019-05-17
INDUSTRIAL AND COMMERCIAL BANK OF CHINA
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0004] In most cases, the transaction node (transaction sender) will initiate multiple transactions at the same time or in a short period of time. After generating the certificate, the transaction node (transaction sender) will attach the same certificate to different transactions. Although this method handles The efficiency is very high, but because different transactions use the same certificate, the relationship between transactions will be easily grasped by a third party, and user behavior may be tracked, resulting in the leakage of user privacy

Method used

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  • Blockchain certificate processing method and system
  • Blockchain certificate processing method and system

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0041] As mentioned above, the blockchain certificate processing method in the prior art is as follows: figure 1 As shown, three roles are involved: certificate management node, transaction node (transaction sender), and other transaction nodes (transaction receiver). And the whole system shares a root certificate, which is held by all nodes, and the private key corresponding to the root certificate is only mastered by the certificate management node. The root certificate and the corresponding private key are configured on each node before the whole system is started....

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Abstract

The invention discloses a blockchain certificate processing method and system. The method comprises the steps that a certificate management node receives a node public key sent by a transaction node;The certificate management node randomly generates one or more groups of temporary public keys and temporary private keys; The certificate management node generates each certificate according to the node public key and each temporary public key; And the certificate management node sends the certificate and the corresponding temporary private key to the transaction node. According to the invention,one or more groups of temporary public keys and temporary private keys can be generated; According to the technical scheme, the method comprises the steps that a transaction node receives a node public key and generates a plurality of certificates according to the node public key and each temporary public key, when a plurality of transactions are generated, the transaction node attaches differentcertificates to each transaction, the user identity privacy is protected while the high processing efficiency is ensured, the association relationship between the transactions is prevented from beingmastered by a third party, and thus the security of the block chain is achieved.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a block chain certificate processing method and system. Background technique [0002] In recent years, blockchain technology has developed rapidly under the impetus of Bitcoin. The blockchain system records data and data operations, encrypts and hashes them through cryptographic algorithms to form a block data structure, and uses consensus algorithms to reliably share among nodes to ensure that data can be verified and cannot be tampered with. node system. The blockchain network consists of multiple transaction nodes, which are responsible for broadcasting transactions to each other, building a peer-to-peer network, participating in consensus, generating blocks, and recording transaction data. In addition, there is generally a certificate management node in the consortium blockchain, and the certificate management node is responsible for issuing certificates for each trans...

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Application Information

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IPC IPC(8): G06Q20/38
Inventor 冯浩铭彭顺求罗伟彬张叶飞
Owner INDUSTRIAL AND COMMERCIAL BANK OF CHINA
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