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A blockchain-based electronic contract management method, device and system

A technology of electronic contracts and management methods, applied in the field of blockchain, can solve problems such as too many resources, and achieve the effect of ensuring normal signing and legality.

Active Publication Date: 2020-07-24
STATE GRID BLOCKCHAIN TECH (BEIJING) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved in this application is to provide a blockchain-based electronic contract management method and system due to the use of CA certification to verify the legitimacy of the user's public key.

Method used

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  • A blockchain-based electronic contract management method, device and system
  • A blockchain-based electronic contract management method, device and system
  • A blockchain-based electronic contract management method, device and system

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Embodiment Construction

[0071] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0072] The inventor of the present application found through research that in the prior art, a digital certificate certification authority (Certificate Authority, CA) authentication method can be used to verify whether the user's public key is legal. However, the process of verifying whether the user's public key is legal by means of CA authentication is complicate...

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Abstract

This application discloses a block chain-based electronic contract management method. After the first device receives the first electronic contract and the first signature from the second device, it can obtain the key corresponding to the first private key from the block chain. first public key, and use the first public key to verify the legitimacy of the first signature. Wherein, the first signature is obtained by the second device using the first private key to encrypt the first digest, and the first digest is obtained by calculating the first electronic contract by using the first HASH algorithm. After the first device determines that the first signature is legal, it may perform a signing operation for the first electronic contract. The user's public key is stored in the blockchain, and the data on the blockchain cannot be tampered with. Therefore, the user's public key stored in the blockchain can be considered legal. Therefore, using the solutions of the embodiments of the present application, it is possible to ensure the normal signing of the first electronic contract without consuming additional resources to verify the legitimacy of the first public key.

Description

technical field [0001] This application relates to the field of blockchain, in particular to a blockchain-based electronic contract management method, device and system. Background technique [0002] During the signing process of the electronic contract, the user's public key can be used to determine whether the electronic contract has been tampered with. Therefore, the legitimacy of the user's public key is particularly important. [0003] Currently, a digital certificate certification authority (Certificate Authority, CA) can be used to verify whether the user's public key is legal. However, the process of verifying whether the user's public key is legal by means of CA authentication is complicated and consumes a lot of resources. [0004] Therefore, be badly in need of a kind of scheme, can solve above-mentioned problem. Contents of the invention [0005] The technical problem to be solved in this application is to provide a block chain-based electronic contract mana...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L9/06H04L29/06H04L29/08G06Q10/10
CPCH04L9/3247H04L9/3236H04L9/0643H04L67/1097H04L63/0435H04L63/0442G06Q10/103H04L9/50
Inventor 王栋陈帅玄佳兴伏跃红卢峰石欣杨成于晓昆
Owner STATE GRID BLOCKCHAIN TECH (BEIJING) CO LTD