CN109858228A - Data sharing service platform and method based on block chain - Google Patents
Data sharing service platform and method based on block chain Download PDFInfo
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Abstract
A kind of data sharing service platform based on block chain technology mainly includes that data directory uploads to shared system, block chain is deposited and demonstrate,proves its upload information, search target information, be packaged demand information, call intelligent contract, public key encryption transmission, decryption sign test.Data upload the main information for realizing data and data format uploads to shared system；Data requirements person searches target data in shared system according to their own needs；Data requirements person is packaged the demand information of oneself according to the format of data set provider while calling intelligent contract；Details and transmission of the data set provider according to the public key encryption oneself of data requirements person；Data requirements person decrypts sign test.The present invention can improve the safety of data sharing, enhance the transparency entirely traded.
Description
Technical field
It is the invention belongs to block chain technical field, in particular to a kind of based on the data sharing service platform of block chain and side
Method.
Background technique
As the field that shared economy is related to is increasing, the safety of data, circulation, shared and Privacy Protection by
It gradually embodies, the maximum bottleneck that the shared economy that data technique has become further develops.Since block chain technology has encryption altogether
It enjoys, the features such as distributed account book, thus a kind of new method and thinking is provided with shared for the circulation of data, with data skill
Art forms complementation.Therefore it combines by block chain with data technique to pay for first and traditional shares economic business model, mode
With the available innovation again of development, completely new opportunity is provided for shared expanding economy.
Block chain is by writing data into chain, together by various data connections.Meanwhile block chain is that one kind goes to center
Change agreement, can the storing data information of safety and the transaction record of data, information has and the characteristics such as can not forge and distort,
With very high public credibility, intelligent contract can be performed automatically, the participation without any centralization mechanism.
Summary of the invention
The present invention provides a kind of data sharing service platforms based on block chain, and it is total to realize data using block chain
It enjoys.
The present invention is directed in the environment of publicly-owned chain, and owner is by sending identity registration information to certificate server, often
Individual can have the identity registration information signed by certificate server, be united by certificate server to proprietary identity
One authentication management.
One of embodiment of the present invention, a kind of data sharing service platform based on block chain, platform is for data sharing
Processing step includes:
Step 1, data set provider uploads data directory and data format to data sharing service platform, is obtaining network
After node verification, card information write-in block chain will be deposited；
Step 2, data requirements person searches in sharing service platform, retrieves the data for meeting oneself demand, obtains data
" contact information " of supplier；
Step 3, data requirements person is packaged demand data according to the call format of data set provider, while calling intelligent conjunction
About, after obtaining network node verifying, block chain is written into part Transaction Information, at the same time, according to the ID of data set provider
It is sent to data set provider；
Step 4, data set provider utilizes its ciphertext of the public key decryptions of data requirements person, compares with demand data, verifies
The accuracy of demand data；
Step 5, analysis of the data set provider analysis demand data to demand, will using the public key encryption of data requirements person
The data of offer are called and confirm intelligent contract, then broadcast the data provided, will be complete after being verified
Transaction Information is put into block chain, while the data provided being sent according to the ID of data requirements person；
Step 6, the data that data requirements person is sended over using the private key ciphertext data supplier of oneself, confirmation data connect
Information is completed in harvest function, the capture transaction of intelligent contract, data sharing service platform by the consideration payment of agreement to data set provider,
Complete entire process of exchange.
Data sharing service platform based on block chain technology of the invention, including data directory upload to shared system,
Block chain, which is deposited, to be demonstrate,proved its upload information, searches target information, be packaged demand information, call intelligent contract, public key encryption transmission, decryption
Sign test.Data upload the main information for realizing data and data format uploads to shared system；Data requirements person is according to certainly
Oneself demand searches target data in shared system；Data requirements person is packaged the demand of oneself according to the format of data set provider
Information calls intelligent contract simultaneously；Details and transmission of the data set provider according to the public key encryption oneself of data requirements person；
Data requirements person decrypts sign test.
The present invention realizes data sharing function using block chain, reduces the cost of data-sharing systems, improves and is
The information security of system enhances the transparency of entire data trade.
Detailed description of the invention
The following detailed description is read with reference to the accompanying drawings, above-mentioned and other mesh of exemplary embodiment of the invention
, feature and advantage will become prone to understand.In the accompanying drawings, if showing by way of example rather than limitation of the invention
Dry embodiment, in which:
Fig. 1 is the process flow diagram of data sharing service platform in the embodiment of the present invention.
Specific embodiment
According to one or more embodiment, as shown in Figure 1, a kind of data sharing platform based on block chain, processing
Step include the following:
Data are published in shared system by step 1, data set provider, block chained record its deposit card information.
The data directory of oneself and data format are put into shared system by data set provider, are tested using common recognition algorithm
Card, then block chained record its deposit card information.
Step 2, data requirements person inquires in shared system and searched targets information, while obtaining data set provider
" contact information ".
Data requirements person searches in shared system, retrieves the data for meeting oneself demand.It can look into several ways
It looks for, the most commonly used is the matching degrees of keyword.According to the data directory in shared system can be apparent from whether with oneself
Demand match.The id information of data set provider is obtained simultaneously.
Step 3, data requirements person's encryption requirements data send encryption data.
Data requirements person's data format according to provided by data set provider be packaged oneself all data (demand information,
Using the ciphertext of private key encryption, personal ID), while intelligent contract is called, the number for being packaged oneself according to the ID of data set provider
Go over according to transmission.It simultaneously will be in the Transaction Information write-in block chain of part.
Step 4, data set provider decrypt ciphertext, verify the correctness of demand data.
Data set provider is when receiving demand data, it is necessary first to which whether verify data deposits during transmission
It is being modified or is being omitted, the correctness and integrality of ciphertext are verified by way of digital signature.Utilize the close of public key decryptions
Text verifies its integrality compared with demand information pair.
Step 5, data set provider analysis demand data simultaneously send complete personal data.
Data set provider verified demand data it is errorless after, demand data is analyzed, while calling and confirming intelligent conjunction
About, it if it is confirmed that the detailed data of oneself successfully to be utilized to the public key encryption of data requirements person, and is sent according to its address ID
To data requirements person.If data requirements person not can confirm that intelligent contract, data requirements person then needs to search target again
Data, return step two.
Step 6, after data requirements person's sign test, information is completed in confirmation data receiver success, intelligent contract capture transaction, from
It is dynamic that the amount of money of contract price is sent to supplier.
Data requirements person is after receiving the data that data set provider sends over, after carrying out sign test, it is ensured that data connect
By success, the Transaction Information of completion is captured, the amount of money for the price appointed in advance is then sent to data and is mentioned by intelligent contract
Donor.
It is not difficult to find that the embodiment of the present invention realizes data sharing function using block chain technology, wherein uploading to shared
System be data directory information, this and other invention are different.It is real using practical Byzantine failure tolerance algorithm simultaneously
Common recognition mechanism, while the use of Merkel tree are showed, have kept information safer.Reduce the storage pressure of data in shared system
With strong Encryption Algorithm so that data it is shared more safety with conveniently.
According to one or more embodiment, a kind of data sharing method based on block chain technology, comprising the following steps:
Data are published in shared system by step 1, data set provider, block chained record its deposit card information.
The data directory of oneself and data format are carried out unified packing and handled by data set provider, will treated data
It is published in shared system, using the common recognition algorithm of practical Byzantine failure tolerance (PBFT), is obtaining the agreement of majority of network node
Afterwards, this is deposited into card information write-in block chain.
The key step of PBFT algorithm is as follows:
1. client sends request call service operations to host node.
2. host node sends the requests to other copies by broadcast.
It requests 3. all copies are carried out and sends result to client.
4. it is identical as a result, result as whole operation that client needs to wait f+1 different replica nodes to send back to.
Step 2, data requirements person inquires in shared system and searched targets information, while obtaining data set provider
" contact information ".
Data requirements person searches on block chain according to demands of individuals, searched targets data, while needing to obtain also
The ID of data set provider can realize that point-to-point data are transmitted by third party's channel according to its ID.Herein everyone
Role is data set provider, is also possible to data requirements person, everyone has, and there are two types of identity.
Step 3, data requirements person's encryption requirements data send encryption data.
Data requirements person has got data format required for data set provider after finding target data,
Data requirements person carries out packing processing by oneself demand data, using the ciphertext of oneself private key encryption, public key, the address ID at this time.
Intelligent contract is called simultaneously, also with the common recognition algorithm of practical Byzantine failure tolerance, block is written into the Transaction Information of part
In chain, according to the address ID of data set provider, the data of packaging ciphering are sent to data set provider.
Herein, the only data block being related to, the transmission of a Transaction Information.When there are a plurality of transaction record biographies
When defeated, each record is regarded a data block by us, each data block carries out cryptographic calculation.Used herein
Encryption method is classical MerkleTree (Merkel tree).Working principle can be briefly summarized are as follows: in the transmission process of data
In in order to improve efficiency and accuracy, can be by big file division at small data block, the bottom of this namely Merkel tree
Part calculates the cryptographic Hash of each data block, then up walks and two adjacent Hash are merged into a character string, then count
The Hash for calculating this character string obtains one " sub- Hash ", and level-one level-one up pushes away, and ultimately forms a projecting tree only
There are a cryptographic Hash, referred to as Merkle Root.
Step 4, data set provider decrypt ciphertext, verify the correctness of demand data.
Data set provider needs to verify its correctness after obtaining the data that data requirements person sends over, according to data need
Its ciphertext of the public key decryptions for the person of asking does contrast verification with its demand data.
The digital signature technology of asymmetric encryption is utilized in the process.Digital signature is the body for verifying sender
Part and the integrality for helping to protect data.Data requirements person utilizes the ciphertext of private key encryption, and data set provider utilizes public key decryptions,
Because only that data requirements person uses the information of private key signature, could be decrypted using public key.
Using digital signature, two o'clock can be confirmed:
1. guaranteeing that information is to be signed to send by signer oneself, signer cannot be denied or be difficult to deny.
2. guaranteeing that information had not made any modification from after signing and issuing until receiving.
Why can be confirmed these two points are because close with necessarily being added with corresponding private key of can decrypting of public key,
And private key only has signer to hold.
Step 5, data set provider analysis demand data simultaneously send complete personal data.
After data set provider has verified the data that data requirements person sends over, sended over using data requirements person
All details of public key encryption oneself.It needs calling again and confirms intelligent contract at this time.If it is confirmed that success,
It will completely be traded using above-mentioned common recognition algorithm and block chain is written, while utilize the id information of data requirements person by detailed number
Go over according to transmission；Data requirements person needs to search the data for meeting oneself demand again if confirmation is unsuccessful.
Step 6, after data requirements person's sign test, information is completed in confirmation data receiver success, intelligent contract capture transaction, from
It is dynamic that contract price is sent to supplier to valence or amount of currency.
Data requirements person is utilized the data of oneself public key encryption, is then decrypted using oneself private key complete needed for it
Entire data.After verify data, confirmation data receiver success, the completion information of intelligent contract meeting automatic capture transaction will be appointed
The amount of money be sent to data set provider, entire transaction is completed.
According to one or more embodiment, before data sharing service platform handles data sharing, number
Identity registration information is sent to certificate server according to supplier and data demander, obtains and is infused by the identity that certificate server is signed
Volume information, carries out unified authentication management by identity of the certificate server to data set provider and data demander.
It is worth noting that although foregoing teachings are by reference to several essences that detailed description of the preferred embodimentsthe present invention has been described creates
Mind and principle, it should be appreciated that, the invention is not limited to the specific embodiments disclosed, the division also unawareness to various aspects
Taste these aspect in feature cannot combine, it is this divide merely to statement convenience.The present invention is directed to cover appended power
Included various modifications and equivalent arrangements in the spirit and scope that benefit requires.
Claims (3)
1. a kind of data sharing service platform based on block chain, which is characterized in that processing step of the platform for data sharing
Include:
Step 1, data set provider uploads data directory and data format to data sharing service platform, is obtaining network node
After verifying, card information write-in block chain will be deposited；
Step 2, data requirements person searches in sharing service platform, retrieves the data for meeting oneself demand, obtains data and provides
" contact information " of person；
Step 3, data requirements person is packaged demand data according to the call format of data set provider, while calling intelligent contract,
After obtaining network node verifying, Transaction Information write-in block chain in part is sent to according to the ID of data set provider at the same time
Data set provider；
Step 4, data set provider utilizes its ciphertext of the public key decryptions of data requirements person, compares with demand data, verifies demand
The accuracy of data；
Step 5, analysis of the data set provider analysis demand data to demand, will be provided using the public key encryption of data requirements person
Data, call and confirm intelligent contract, then the data provided are provided, after being verified, will completely trade
Information is put into block chain, while the data provided being sent according to the ID of data requirements person；
Step 6, the data that data requirements person is sended over using the private key ciphertext data supplier of oneself, confirmation data receiver at
Information is completed in function, intelligent contract capture transaction, and data sharing service platform to data set provider, completes the consideration payment of agreement
Entire process of exchange.
2. a kind of data sharing method based on block chain, which is characterized in that the processing step of data sharing includes:
Step 1, data set provider uploads data directory and data format to data server, is obtaining network node verifying
Afterwards, card information write-in block chain will be deposited；
Step 2, data requirements person searches in data server, retrieves the data for meeting oneself demand, obtains data set provider
" contact information "；
Step 3, data requirements person is packaged demand data according to the call format of data set provider, while calling intelligent contract,
After obtaining network node verifying, Transaction Information write-in block chain in part is sent to according to the ID of data set provider at the same time
Data set provider；
Step 4, data set provider utilizes its ciphertext of the public key decryptions of data requirements person, compares with demand data, verifies demand
The accuracy of data；
Step 5, analysis of the data set provider analysis demand data to demand, will be provided using the public key encryption of data requirements person
Data, call and confirm intelligent contract, then the data provided are provided, after being verified, will completely trade
Information is put into block chain, while the data provided being sent according to the ID of data requirements person；
Step 6, the data that data requirements person is sended over using the private key ciphertext data supplier of oneself, confirmation data receiver at
Function, intelligent contract capture transaction complete information and complete entire process of exchange by the consideration payment of agreement to data set provider.
3. the data sharing service platform according to claim 1 based on block chain, which is characterized in that taken in data sharing
Before business platform handles data sharing,
Data set provider and data demander send identity registration information to certificate server, obtain and to be signed by certificate server
Identity registration information carries out unified authentication management by identity of the certificate server to data set provider and data demander.
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| CN110213296A (en) * | 2019-06-24 | 2019-09-06 | 北京艾摩瑞策科技有限公司 | It is a kind of that data cochain method and its equipment are thumbed up based on block chain |
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| CN110223118A (en) * | 2019-06-11 | 2019-09-10 | 北京艾摩瑞策科技有限公司 | A kind of method of investigation and study realized by intelligent contract and its equipment |
| CN110225032A (en) * | 2019-06-11 | 2019-09-10 | 北京艾摩瑞策科技有限公司 | A kind of method of commerce and its equipment of business datum |
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| CN110753114A (en) * | 2019-10-23 | 2020-02-04 | 哲中自动化科技(重庆)有限公司 | Data sharing method, cloud platform and system for industrial field |
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| CN110298193A (en) * | 2019-06-10 | 2019-10-01 | 中电科大数据研究院有限公司 | Information sharing system and method based on block chain |
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| CN110232286A (en) * | 2019-06-24 | 2019-09-13 | 北京艾摩瑞策科技有限公司 | A kind of electric quotient data cochain method and its equipment for applying intelligent contract |
| CN110264205A (en) * | 2019-06-24 | 2019-09-20 | 北京艾摩瑞策科技有限公司 | A kind of electric quotient data cochain method and its equipment applied to block chain |
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| CN110213295A (en) * | 2019-06-24 | 2019-09-06 | 北京艾摩瑞策科技有限公司 | It is related to the knowledge question data cochain method and its equipment of intelligent contract |
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| CN110753114A (en) * | 2019-10-23 | 2020-02-04 | 哲中自动化科技(重庆)有限公司 | Data sharing method, cloud platform and system for industrial field |
| CN110933093A (en) * | 2019-12-04 | 2020-03-27 | 广西民族大学 | Block chain data sharing platform and method based on differential privacy protection technology |
| CN110941856A (en) * | 2019-12-04 | 2020-03-31 | 广西民族大学 | Data differential privacy protection sharing platform based on block chain |
| CN111327426A (en) * | 2020-01-21 | 2020-06-23 | 腾讯科技（深圳）有限公司 | Data sharing method and related device, equipment and system |
| CN111782537A (en) * | 2020-07-08 | 2020-10-16 | 上海计算机软件技术开发中心 | Crowd-sourcing process management system and method based on block chain technology |
| CN111782537B (en) * | 2020-07-08 | 2021-12-17 | 上海计算机软件技术开发中心 | Crowd-sourcing process management system and method based on block chain technology |
| CN112783847A (en) * | 2021-01-18 | 2021-05-11 | 中国农业科学院深圳农业基因组研究所 | Data sharing method and device |
| CN113344705A (en) * | 2021-06-21 | 2021-09-03 | 上海计算机软件技术开发中心 | Data sharing method and system based on block chain |
| CN113704806A (en) * | 2021-10-27 | 2021-11-26 | 杭州费尔斯通科技有限公司 | Medical data sharing method and system based on block chain |
| CN113746621A (en) * | 2021-11-08 | 2021-12-03 | 湖南宸瀚信息科技有限责任公司 | Multi-chain architecture information sharing system based on block chain technology |
| CN113746621B (en) * | 2021-11-08 | 2022-01-04 | 湖南宸瀚信息科技有限责任公司 | Multi-chain architecture information sharing system based on block chain technology |
| CN115297118A (en) * | 2022-10-09 | 2022-11-04 | 北京航空航天大学杭州创新研究院 | Data sharing method and data sharing system based on block chain |
| CN115297118B (en) * | 2022-10-09 | 2023-01-31 | 北京航空航天大学杭州创新研究院 | Data sharing method and data sharing system based on block chain |
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Application publication date: 20190607 |