CN111444264A - Data security sharing method based on block chain - Google Patents
Data security sharing method based on block chain Download PDFInfo
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- CN111444264A CN111444264A CN202010099200.2A CN202010099200A CN111444264A CN 111444264 A CN111444264 A CN 111444264A CN 202010099200 A CN202010099200 A CN 202010099200A CN 111444264 A CN111444264 A CN 111444264A
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- data
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- block chain
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
- G06F16/2471—Distributed queries
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
Abstract
The invention provides a data security sharing method based on a block chain, which comprises the following steps that S1, a data provider, a data demander, a data sharing platform and a platform supervisor are used as nodes to construct a data security sharing chain; s2, uploading the data to a data sharing platform by the data provider; s3, the data sharing platform stores the data into the block chain; s4, the data requester and the data sharing platform reach a data sharing protocol; s5, the data sharing platform calls corresponding data from the block chain according to the data needs; s6, the data sharing platform processes the called data and provides the inquired result to the data demander; s7, judging whether a change event occurs or not, judging whether the change type is data change or not, and if so, encrypting the change data corresponding to the change event to obtain change encrypted data; s8, recording the behavior of the whole data sharing inquiry process on the blockchain through a blockchain behavior recording contract; the method has the advantages of convenience in data sharing and query and good safety.
Description
Technical Field
The invention belongs to the technical field of block chains, and particularly relates to a data security sharing method based on a block chain.
Background
As the data volume around the world is rapidly expanded according to the moore's law of data, the data resources are more and more, and the huge data resources are actually hidden values. However, governments and many large enterprises have mastered a large amount of high-density, high-value data for security or other reasons, and have not been shared with the public, and if these data resources were always hidden from resource sharing with human society, the enormous value they imply would be wasted. Nowadays, people are more and more aware of the importance of data sharing, and simultaneously, higher requirements are also put on the security in data sharing. The blockchain technology is a technology for maintaining a complete, distributed and non-falsifiable ledger database by using a decentralized consensus mechanism, and can enable participants in a blockchain to realize a uniform ledger system on the premise of not establishing a trust relationship. When the block chain technology is used for realizing the safe data sharing, the safety problem of the data sharing can be better solved, and the value of the data can be better used by people; the existing data sharing method cannot provide proper data for data demanders in a targeted manner during data sharing, and data security protection in the data sharing process is insufficient.
Disclosure of Invention
The invention aims to provide a data security sharing method based on a block chain, which aims to solve the problems that the existing data sharing method can not provide proper data for data demanders in a targeted manner during data sharing and the data security protection in the data sharing process is insufficient.
The invention provides the following technical scheme:
a safe data sharing method based on a block chain comprises the following steps: s1, constructing a data security sharing chain by taking the data provider, the data demander, the data sharing platform and the platform supervisor as nodes; s2, the data provider preliminarily processes and uploads the data to the data sharing platform; s3, the data sharing platform processes the data again and stores the processed data into the block chain, and common identification of other nodes is obtained on the block chain; s4, the data demander and the data sharing platform reach a data sharing protocol, meanwhile, the access authority control rules of each item of data are stored in the block chain through an intelligent contract, and other node consensus is obtained on the block chain; s5, the data sharing platform calls corresponding data from the block chain according to the authority and the requirement of the data demander; s6, the data sharing platform processes the called data through the sandbox security bin, and provides the query result for the data demander; s7, a platform supervisor monitors whether a data provider, a data demander and a node of a data sharing platform generate a change event, if so, the platform supervisor determines whether the change type of the change event belongs to the data change, if so, the platform supervisor encrypts the change data corresponding to the change event to obtain change encrypted data, and obtains other node consensus on a block chain; and S8, recording the behavior of the whole data sharing inquiry process on the blockchain through the blockchain behavior recording contract.
Further, the preliminary processing of the data in S2 includes: data desensitization processing, data encryption processing or data cleaning processing.
Further, the reprocessing of the data in S3 includes: and the data sharing platform encrypts the data again and arranges the storage address directory hash and the data hash of the data.
Further, the identity generation of the data provider and the data demander comprises that the data sharing platform generates a corresponding encryption key and a signature public and private key, and the data provider verifies the identity of the data provider to upload the data to the data sharing platform; and providing the result of the query to the data demander through the identity verification of the data demander.
Further, the platform regulator is a big data office, a government agency, or a regulatory qualified agency.
Further, the data sharing platform is used for establishing a platform for communicating with a data provider and a data needed person, achieving a data sharing protocol with both the data provider and the data needed person, achieving a data application, retrieval and processing protocol with a data security sharing link, and coordinating and controlling the whole process of data sharing.
The invention has the beneficial effects that:
the invention relates to a data security sharing method based on a block chain, which is characterized in that a data provider, a data needed person, a data sharing platform and a platform supervisor are orderly connected together based on the characteristics of non-tampering, decentralization, data encryption and trust transfer of a block chain technology on the basis of a trusted network constructed by an intelligent contract, all data which are identified by the block chain network are encrypted by the supervisory node before data sharing, all encrypted data are recorded on the block chain, and data sharing transmission is encrypted, so that the security of data sharing can be ensured; and the credibility and the public credibility of data sharing are ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic flow diagram of the process of the present invention.
Detailed Description
As shown in fig. 1, a block chain-based data security sharing method includes the following steps:
s1, constructing a data security sharing chain by taking the data provider, the data demander, the data sharing platform and the platform supervisor as nodes;
s2, the data provider preliminarily processes and uploads the data to the data sharing platform; the data preliminary processing comprises the following steps: data desensitization processing, data encryption processing or data cleaning processing.
S3, the data sharing platform processes the data again and stores the processed data into the block chain, and common identification of other nodes is obtained on the block chain; the data reprocessing includes: and the data sharing platform encrypts the data again and arranges the storage address directory hash and the data hash of the data.
S4, the data demander and the data sharing platform reach a data sharing protocol, meanwhile, the access authority control rules of each item of data are stored in the block chain through an intelligent contract, and other node consensus is obtained on the block chain;
s5, the data sharing platform calls corresponding data from the block chain according to the authority and the requirement of the data demander;
s6, the data sharing platform processes the called data through the sandbox security bin, and provides the query result for the data demander;
s7, the platform supervisor monitors whether the data provider, the data demander and the node sharing the platform have changed events,
if so, determining whether the change type of the change event belongs to data change, if so, encrypting the change data corresponding to the change event to obtain change encrypted data, and obtaining other node consensus on the block chain;
and S8, recording the behavior of the whole data sharing inquiry process on the blockchain through the blockchain behavior recording contract.
The data provider, the data demander, the data sharing platform and the platform supervisor are specifically as follows:
the identity generation of the data provider and the data demander comprises that the data provider and the data demander generate a corresponding encryption key and a signature public and private key through a data sharing platform, and the data are uploaded to the data sharing platform through the verification of the identity of the data provider; and providing the result of the query to the data demander through the identity verification of the data demander.
The platform regulator is a big data office, a government agency, or an agency with regulatory qualifications.
And the data sharing platform is used for establishing a platform for communicating with a data provider and a data needed person, achieving a data sharing protocol with both the data provider and the data needed person, achieving a data application, calling and processing protocol with a data safety sharing chain, and coordinating and controlling the whole process of data sharing.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A safe data sharing method based on a block chain is characterized by comprising the following steps:
s1, constructing a data security sharing chain by taking the data provider, the data demander, the data sharing platform and the platform supervisor as nodes;
s2, the data provider preliminarily processes and uploads the data to the data sharing platform;
s3, the data sharing platform processes the data again and stores the processed data into the block chain, and common identification of other nodes is obtained on the block chain;
s4, the data demander and the data sharing platform reach a data sharing protocol, meanwhile, the access authority control rules of each item of data are stored in the block chain through an intelligent contract, and other node consensus is obtained on the block chain;
s5, the data sharing platform calls corresponding data from the block chain according to the authority and the requirement of the data demander;
s6, the data sharing platform processes the called data through the sandbox security bin, and provides the query result for the data demander;
s7, the platform supervisor monitors whether the data provider, the data demander and the node of the data sharing platform have changed events,
if so, determining whether the change type of the change event belongs to data change, if so, encrypting the change data corresponding to the change event to obtain change encrypted data, and obtaining other node consensus on the block chain;
and S8, recording the behavior of the whole data sharing inquiry process on the blockchain through the blockchain behavior recording contract.
2. The method according to claim 1, wherein the preliminary processing of data in S2 includes: data desensitization processing, data encryption processing or data cleaning processing.
3. The method according to claim 1, wherein the reprocessing at S3 includes: and the data sharing platform encrypts the data again and arranges the storage address directory hash and the data hash of the data.
4. The secure sharing method of data based on blockchain according to claim 1, wherein the generating of the identities of the data provider and the data demander comprises generating a corresponding encryption key and signature public and private key by the data sharing platform, and uploading the data to the data sharing platform by verifying the identity of the data provider; and providing the result of the query to the data demander through the identity verification of the data demander.
5. The blockchain-based data security sharing method according to claim 1, wherein the platform supervisor is a big data bureau, a government agency, or a regulatory-qualified agency.
6. The method according to claim 1, wherein the data sharing platform is used to establish a platform for communicating with data providers and data consumers and to establish a data sharing agreement with both data providers and data consumers, and to establish a data application, retrieval and processing agreement with the data security sharing chain and to coordinate and control the whole process of data sharing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099200.2A CN111444264A (en) | 2020-02-18 | 2020-02-18 | Data security sharing method based on block chain |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010099200.2A CN111444264A (en) | 2020-02-18 | 2020-02-18 | Data security sharing method based on block chain |
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| CN111444264A true CN111444264A (en) | 2020-07-24 |
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| CN202010099200.2A Withdrawn CN111444264A (en) | 2020-02-18 | 2020-02-18 | Data security sharing method based on block chain |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112733207A (en) * | 2021-04-02 | 2021-04-30 | 国网电子商务有限公司 | Data processing method, device and system based on block chain |
| CN112765640A (en) * | 2021-01-29 | 2021-05-07 | 重庆卡歌科技有限公司 | Data sharing method based on block chain technology |
| WO2022078011A1 (en) * | 2020-10-12 | 2022-04-21 | 深圳壹账通智能科技有限公司 | Data sharing method and system, server, and computer-readable storage medium |
-
2020
- 2020-02-18 CN CN202010099200.2A patent/CN111444264A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022078011A1 (en) * | 2020-10-12 | 2022-04-21 | 深圳壹账通智能科技有限公司 | Data sharing method and system, server, and computer-readable storage medium |
| CN112765640A (en) * | 2021-01-29 | 2021-05-07 | 重庆卡歌科技有限公司 | Data sharing method based on block chain technology |
| CN112733207A (en) * | 2021-04-02 | 2021-04-30 | 国网电子商务有限公司 | Data processing method, device and system based on block chain |
| CN112733207B (en) * | 2021-04-02 | 2021-07-13 | 国网电子商务有限公司 | Data processing method, device and system based on block chain |
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Application publication date: 20200724 |