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Block chain-based data flow tracing method

A block chain and data technology, applied in the direction of structured data retrieval, electronic digital data processing, database distribution/replication, etc.

Active Publication Date: 2022-02-11
中国人民解放军92493部队信息技术中心
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a blockchain-based data transfer traceability method to solve the problem of universality of data traceability and the problem that data will not be maliciously modified during the transfer process

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0025] The data traceability system includes traceability official website, traceability application,

[0026] refer to Figure 1-2 , a blockchain-based data flow traceability method, comprising the following steps:

[0027] S1: The user accesses the traceability cloud platform based on the SDK technology and the double-key cryptography algorithm. The traceability cloud platform is equipped with a blockchain and a traceability contract module. The traceability contract module is packaged with a smart contract and an identification analysis service; the smart contract realizes user identity binding , verification, and on-chain storage, query, and verification of structured and unstructured data information to generate a globally unique traceabilit...

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Abstract

The invention belongs to the technical field of block chains, and particularly relates to a block chain-based data flow tracing method. A data structure is established from data, a check code is obtained according to an information code in the data structure, after data information code is placed in the check code in a superposed way, in the data flow process, all users who check the data and the check time form information code, and after the information code is superposed in the check code in sequence to form a new check code. After a user initiates data traceability and completes data traceability, the check code is obtained according to traceability data, a CRC check algorithm is adopted for checking, whether the data are wrong or not as well as the step which is wrong is determined by calculation, and then the user who carries out malicious modification on the data in the data circulation process is inquired; therefore, illegal users are greatly prevented from maliciously modifying the data, the accuracy of the data in the data circulation process is finally ensured, and data traceability does not have errors; and meanwhile, through dynamic traceability information template control, traceability information construction of different industries is realized.

Description

technical field [0001] The invention belongs to the technical field of blockchain data sharing, and in particular relates to a method for traceability of data circulation based on blockchain. Background technique [0002] Blockchain is a term in the field of information technology. In essence, it is a shared database in which the data or information stored has the characteristics of "unforgeable", "full trace", "traceable", "open and transparent", "collective Maintenance" and other features. Based on these characteristics, blockchain technology has laid a solid "trust" foundation, created a reliable "cooperation" mechanism, and has broad application prospects. distributed ledger. The blockchain is developed and operated using technologies such as P2P technology, cryptography, consensus algorithms, and smart contracts. These technologies ensure that the blockchain ledger cannot be tampered with or forged. The blockchain provides a mechanism for information and value transf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/27G06F11/10H04L9/40H04L9/32
CPCG06F16/27G06F11/1004H04L63/0442H04L9/3247H04L2209/72
Inventor 金振中马跃飞陈峰胡永涛庞亮邱钰超刘在爽龚昕岳明桥张继强姚鹏飞
Owner 中国人民解放军92493部队信息技术中心
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