Method and system for realizing trusted timestamp service based on block chain

A realization method and technology of time stamp, applied in the direction of transmission system, digital transmission system, safety communication device, etc.

Active Publication Date: 2019-12-03
SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical task of the present invention is to provide a method and system for realizing trusted timestamp service based on blockchain to solve the problem of how to remove the trusted timestamp service of third-party institutions

Method used

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  • Method and system for realizing trusted timestamp service based on block chain
  • Method and system for realizing trusted timestamp service based on block chain
  • Method and system for realizing trusted timestamp service based on block chain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] as attached figure 1 As shown, the implementation method of the blockchain-based trusted timestamp service of the present invention, the specific steps of the method are as follows:

[0065] S1. Hyperledger fabric blockchain network construction and user registration: build a hyperledger fabric blockchain network, and deploy smart contracts for storing electronic data-related information on the hyperledger fabric blockchain network. The identity registered in the blockchain network; among them, the electronic data is an electronic file or text;

[0066] S2. Credible timestamp generation: the user uses a hash algorithm to perform a hash operation on the electronic data to obtain a summary, and writes the relevant information of the electronic data into the blockchain, and at the same time uses the transaction time of the corresponding transaction as the corresponding transaction time of the trusted timestamp. Time point, and then return the json structure composed of tr...

Embodiment 2

[0096] as attached Figure 5 As shown, it is used to realize the trusted timestamp service system based on blockchain in Embodiment 1, the system includes,

[0097] The hyperledger fabric blockchain network construction and user registration unit M1 is used to build the hyperledger fabric blockchain network and deploy smart contracts for storing electronic data-related information on the hyperledger fabric blockchain network. Register identity in the ledger fabric blockchain network;

[0098] Credible time stamp generation unit M2 is used for users to use hash algorithm to perform hash operation on electronic data to obtain a summary, and write the relevant information of electronic data into the block chain, and at the same time use the transaction time of the corresponding transaction as a trusted time stamp The corresponding time point, and then return the json structure composed of transaction key value, transaction hash and timestamp as a trusted timestamp;

[0099] The...

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PUM

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Abstract

The invention discloses a method and a system for realizing a trusted timestamp service based on a block chain. The invention belongs to the technical field of block chain, super account book Fabric and hash algorithms, aims to solve the technical problem of how to remove trusted timestamp service of a third-party institution, and adopts the technical scheme that (1) the method specifically comprises the following steps of: constructing a super account book Fabric block chain network and registering users; generating a credible timestamp; a user performing hash operation on the electronic databy using a hash algorithm to obtain an abstract, writing related information of the electronic data into the block chain, taking transaction time of corresponding transaction as a time point corresponding to the trusted timestamp, and returning a json structure consisting of a transaction key value, transaction hash and the timestamp as the trusted timestamp; verifying the trusted timestamp; (2)the system comprises a super account book Fabric block chain network construction and user registration unit, a trusted timestamp generation unit and a trusted timestamp verification unit.

Description

technical field [0001] The present invention relates to the technical fields of block chain, hyperledger fabric, and hash algorithm, in particular to a method and system for realizing trusted time stamp service based on block chain. Background technique [0002] Hyperledger fabric is a blockchain network, the core of which is a distributed ledger, in which all transaction information that occurs in the network is recorded. The use of encryption technology ensures that once a transaction is added to the ledger, it cannot be tampered with. [0003] Smart contracts, smart contracts on the blockchain are computer programs that are automatically executed when certain conditions are met. Once deployed on the blockchain, the execution logic cannot be tampered with. [0004] Electronic signature technology, electronic signature refers to the electronic signature of dictionary documents through cryptography technology, involving asymmetric key encryption technology. Do hash operati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/32G06F16/27G06Q40/04
CPCH04L9/3297G06F16/27G06Q40/04H04L2463/121
Inventor 张岚庞松涛商广勇王伟兵马岩堂赵树林姜鑫陶鑫刘伟巍
Owner SHANDONG LANGCHAO YUNTOU INFORMATION TECH CO LTD
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