CN107464118A - A kind of data trade method based on block chain intelligence contract - Google Patents

A kind of data trade method based on block chain intelligence contract Download PDF

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Publication number
CN107464118A
CN107464118A CN201710701511.XA CN201710701511A CN107464118A CN 107464118 A CN107464118 A CN 107464118A CN 201710701511 A CN201710701511 A CN 201710701511A CN 107464118 A CN107464118 A CN 107464118A
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node
data
block chain
contract
data trade
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CN201710701511.XA
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Chinese (zh)
Inventor
孙善宝
于治楼
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济南浪潮高新科技投资发展有限公司
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Priority to CN201710701511.XA priority Critical patent/CN107464118A/en
Publication of CN107464118A publication Critical patent/CN107464118A/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/38Payment protocols; Details thereof
    • G06Q20/40Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/405Establishing or using transaction specific rules
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/20Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/27Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/602Providing cryptographic facilities or services
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60Protecting data
    • G06F21/62Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6218Protecting 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/08Payment architectures
    • G06Q20/085Payment architectures involving remote charge determination or related payment systems
    • G06Q20/0855Payment architectures involving remote charge determination or related payment systems involving a third party
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/22Payment schemes or models
    • G06Q20/223Payment schemes or models based on the use of peer-to-peer networks
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q20/00Payment architectures, schemes or protocols
    • G06Q20/38Payment protocols; Details thereof
    • G06Q20/40Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
    • G06Q20/401Transaction verification
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06QDATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q40/00Finance; Insurance; Tax strategies; Processing of corporate or income taxes
    • G06Q40/04Exchange, e.g. stocks, commodities, derivatives or currency exchange

Abstract

The present invention relates to big data, block chain and intelligent contract technical field, more particularly to a kind of data trade method based on block chain intelligence contract.A kind of data trade method based on block chain intelligence contract of the present invention, it records the act of purchase and sale of both parties by block chain, and the automatic execution of transaction is realized using intelligent contract, the big data being traded is not recorded in block chain, data can be stored encrypted in external data storage, after intelligent contract is merchandised successfully, buyer could obtain data, in addition, buyer can also be merchandised by supervising block chain common recognition Web Publishing simultaneously, realize that third party witnesses, increase the security guarantee of data trade.

Description

A kind of data trade method based on block chain intelligence contract

Technical field

It is more particularly to a kind of based on block chain intelligence the present invention relates to big data, block chain and intelligent contract technical field The data trade method of contract.

Background technology

Block chain technology, it is a kind of decentralization, the distributed account book of collective's maintenance also known as " distributed account book technology " Technical scheme, its essence are by the distributed data base system of multiple node group participations.Block chain is not a kind of single skill Art, but the result that multiple technologies are integrated, recorded using one account book that is reliable, being difficult to tamper with of block chain technical maintenance, can To reduce the risk trusted, and the maintenance cost of many participant cooperations can be effectively reduced.

With the development of block chain technology, intelligent contract is possibly realized, and this subversive technology will be to human society Structure produces great change.Intelligent contract is the key property of block chain, and its essence is one section of program code, and this section of code can be by One computer or computer network perform automatically according to the rights and duties of signature contract, are carried out without Centroid Control.This characteristic becomes programmable currency and may be programmed the technical foundation of finance.

In recent years, traditional forms of enterprises's transition and upgrade is that data-driven is trend of the times, and big data expedites the emergence of one wherein Field unprecedented information revolution, Industrial Revolution and management revolution, turning into and promoting social technology innovation, promote government function Change, lead the important means of social change.Big data enters link under line from line, and the value of data is by industrial circle Accreditation, the thing followed is the transaction and circulation of big data, but traditional centralized transaction mode can not meet it is growing Demand, in this case, how effectively to realize the problem of big data transaction turns into urgent need to resolve using block chain technology.

The content of the invention

In order to solve problem of the prior art, the invention provides a kind of data trade side based on block chain intelligence contract Method, it records the act of purchase and sale of both parties by block chain, and the automatic execution of transaction, area are realized using intelligent contract The big data being traded is not recorded in block chain, data can be stored encrypted in external data storage, when intelligent contract is merchandised After success, buyer could obtain data, in addition, buyer can also be merchandised by supervising block chain common recognition Web Publishing simultaneously, it is real Existing third party's witness, increase the security guarantee of data trade.

The technical solution adopted in the present invention is as follows:

A kind of data trade method based on block chain intelligence contract, its method are data trade common recognition network and supervision common recognition net All nodes between network safeguard that a account book records jointly by block chain, and described node can issue data trade, Described data trade common recognition network is published in a manner of intelligent contract in block chain, and by P2P net distributions to each Node, common recognition is finally achieved, can also know together Web Publishing data trade to supervision, reach common understanding, and be total to by data trade The checking node for knowing network performs intelligent contract automatically.

Data trade method specifically includes:

Step 1, buyer node propose data trade application;

Step 2, seller node provide data register and sample is sent to buyer node;

Step 3, described buyer node formulate data directory, rule and strategy, and determine proving program logic, are sent to the seller Node;

Step 4, described seller node encrypting transactions data, and be put into external storage, external linkage and authentication mode are added Enter into intelligent contract;

Step 5, described buyer node and described seller node are held consultation, and finally issue intelligence by described buyer node Contract is known together network to described data trade;

Step 6, each node of described data trade common recognition network are reached common understanding, and are generated block, are added to block chain;

Step 7, described checking node temporally require to automatically begin to perform intelligent contract;

Step 8, described checking node can produce temporary key pair in intelligent contract implementation procedure, and by intelligent contract mark Know, authentication information and temporary public key are sent to described seller node;

Step 9, the checking of described seller node receive the legitimacy of information, the data key that external encryption is stored, utilize intelligence Energy contract temporary public key is encrypted, and sends described checking node;

The information that step 10, described checking node are received using the temporary private decryption of intelligent contract, obtains key, and will be outer The transaction data of portion's encryption storage is locally downloading, using key by data deciphering;

Step 11, described checking node perform the program of the checking data validity of intelligent contract;If the verification passes, by number Utilize the public key of described buyer node to be encrypted according to encryption key, and be sent to described buyer node, contract has performed Into renewal execution state;Otherwise, described buyer node and described seller node Fail Transaction are notified, updates execution state.

Between step 5 and step 6, in addition to the content of intelligent contract is published to institute by step 51, described buyer node The supervision common recognition network stated.

Between step 6 and step 7, in addition to step 61, each node of described supervision common recognition network are reached common understanding, and are generated Block, it is added to block chain;

After step 11, in addition to the execution state of intelligent contract is published to described prison by step 12, described checking node Pipe common recognition network;Step 13, each node of described supervision common recognition network are reached common understanding, and are generated block, are added in block chain.

Buyer node by P2P Web Publishing data trade intelligence contracts, reach common understanding by each node for participating in block chain, Described seller node provides the transaction data after encryption, and carries out the negotiation of intelligent contract.

Data trade common recognition network is P2P networks, and data trade is completed by block chain;Described supervision common recognition network Node is participated in by the third party to participate in business, and the data trade intelligence particulars of a contract are witnessed;Described checking node is born Duty performs intelligent contract, and key is sent into buyer node according to trading situation.

The beneficial effect that technical scheme provided by the invention is brought is:

A kind of data trade method based on block chain intelligence contract of the present invention, passes through block by the act of purchase and sale of both parties Chain is recorded, and the automatic execution of transaction is realized using intelligent contract, compared to traditional third party's data trade flat-bed format, Unified, decentralization transaction and authentication service are provided, enhances the reliability and unforgeable of transaction authentication;We Method also fully takes into account the particularity of data trade, and data directory, rule and strategy and Validation of Data are added to In intelligent contract, the fairness of transaction is effectively guaranteed.In intelligent contract implementation procedure, the transaction data of the seller is not sent out Cloth is into block chain, but encryption is stored in external data storage, is on the one hand reduced the carrying cost of block chain, be ensure that The efficiency that block chain performs, on the other hand, the node and external data storage for only performing intelligent contract interact, and buyer Transaction data can not be obtained, this ensure that the security of vendor data.In addition, buyer simultaneously can also be by supervising block chain Web Publishing of knowing together is merchandised, and is realized that third party witnesses, is increased the security guarantee of data trade.

Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings Accompanying drawing.

Fig. 1 is the block chain node signal in a kind of data trade method based on block chain intelligence contract of the present invention Figure;

Fig. 2 is the common recognition network block chain signal in a kind of data trade method based on block chain intelligence contract of the present invention Figure;

Fig. 3 is a kind of method flow diagram of data trade method based on block chain intelligence contract of the present invention.

Embodiment

To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention Formula is described in further detail.

Embodiment one

As shown in fig. 1, data trade common recognition network and supervision common recognition network in the present embodiment be present, all nodes pass through block Chain safeguards a account book record jointly.Any node can issue transaction(transaction), data trade is with intelligent contract Mode be published in block chain, and by P2P net distributions to each node, finally achieve common recognition, can also be to supervision altogether Know Web Publishing transaction, reach common understanding.In addition, intelligent contract is performed by the checking node for network of knowing together automatically.Wherein,

Buyer node by P2P Web Publishing data trade intelligence contracts, reach common understanding by each node for participating in block chain;The seller Node provides the transaction data after encryption, and carries out the negotiation of intelligent contract;Data trade common recognition network is P2P networks, is passed through Block chain completes data trade;The node of supervision common recognition network is participated in by the third party to participate in business, and data trade is intelligently closed Same content is witnessed;Checking node is responsible for performing intelligent contract, and key is sent into buyer node according to trading situation.

Clear in order to describe, as shown in Figure 2, the transaction in data trade common recognition network block chain is intelligent contract, prison Transaction in pipe common recognition network block chain is traditional transaction.It will be appreciated by those skilled in the art that except more than use tying Outside structure method for expressing, construction according to the embodiment of the present invention can also apply on other data presentation techniques.

Procedure provided by the invention is described in detail below in conjunction with specific embodiments.For the side of description Just, SM3 national secret algorithms are used in procedure below, and as digest algorithm, SM3SM2 national secret algorithms are as signature algorithm, the close calculation of SM2 states Method is as rivest, shamir, adelman, and SM4 is as symmetric encipherment algorithm.

First, data trade

With reference to figure 3, data trade comprises the following steps:

Step 1, described buyer node propose data trade application;

Step 2, described seller node provide data register and sample is sent to described buyer node;

Step 3, described buyer node formulate data directory, rule and strategy, and determine proving program logic, are sent to the seller Node;

Step 4, described seller node encrypting transactions data(Using the close symmetric encipherment algorithm of SM4 states), and it is put into external storage In, external linkage and authentication mode are added in intelligent contract;

Step 5, described buyer node and described seller node are held consultation, and finally issue intelligence by described buyer node Contract is known together network to described data trade;

The content of intelligent contract is published to described supervision common recognition network by step 6, described buyer node;

Step 7, each node of described data trade common recognition network are reached common understanding, and are generated block, are added to block chain;

Step 8, each node of described supervision common recognition network are reached common understanding, and are generated block, are added to block chain;

Step 9, described checking node temporally require to automatically begin to perform intelligent contract;

Step 10, described checking node can produce temporary key pair in intelligent contract implementation procedure(Using the close calculation of SM2 states Method), and intelligent Contract ID, authentication information and temporary public key are sent to described seller node;

Step 11, the checking of described seller node receive the legitimacy of information, the data key that external encryption is stored, utilize intelligence Energy contract temporary public key is encrypted, and sends described checking node;

The information that step 12, described checking node are received using the temporary private decryption of intelligent contract, obtains key, and will be outer The transaction data of portion's encryption storage is locally downloading, using key by data deciphering;

Step 13, described checking node perform the program of the checking data validity of intelligent contract;If the verification passes, by number Utilize the public key of described buyer node to be encrypted according to encryption key, and be sent to described buyer node, contract has performed Into renewal execution state;Otherwise, described buyer node and described seller node Fail Transaction are notified, updates execution state.

The execution state of intelligent contract is published to described supervision common recognition network by step 14, described checking node;

Step 15, each node of described supervision common recognition network are reached common understanding, and are generated block, are added in block chain.

The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.

Claims (7)

1. a kind of data trade method based on block chain intelligence contract, its method is that data trade common recognition network and supervision are known together All nodes between network safeguard that a account book records jointly by block chain, and described node can issue data friendship Easily, described data trade common recognition network is published in a manner of intelligent contract in block chain, and by P2P net distributions to respectively Individual node, common recognition is finally achieved, can also know together Web Publishing data trade to supervision, reach common understanding, and pass through data trade The checking node of network of knowing together performs intelligent contract automatically.
2. a kind of data trade method based on block chain intelligence contract according to claim 1, it is characterised in that described Data trade method specifically include:
Step 1, buyer node propose data trade application;
Step 2, seller node provide data register and sample is sent to buyer node;
Step 3, described buyer node formulate data directory, rule and strategy, and determine proving program logic, are sent to the seller Node;
Step 4, described seller node encrypting transactions data, and be put into external storage, external linkage and authentication mode are added Enter into intelligent contract;
Step 5, described buyer node and described seller node are held consultation, and finally issue intelligence by described buyer node Contract is known together network to described data trade;
Step 6, each node of described data trade common recognition network are reached common understanding, and are generated block, are added to block chain;
Step 7, described checking node temporally require to automatically begin to perform intelligent contract;
Step 8, described checking node can produce temporary key pair in intelligent contract implementation procedure, and by intelligent contract mark Know, authentication information and temporary public key are sent to described seller node;
Step 9, the checking of described seller node receive the legitimacy of information, the data key that external encryption is stored, utilize intelligence Energy contract temporary public key is encrypted, and sends described checking node;
The information that step 10, described checking node are received using the temporary private decryption of intelligent contract, obtains key, and will be outer The transaction data of portion's encryption storage is locally downloading, using key by data deciphering;
Step 11, described checking node perform the program of the checking data validity of intelligent contract;If the verification passes, by number Utilize the public key of described buyer node to be encrypted according to encryption key, and be sent to described buyer node, contract has performed Into renewal execution state;Otherwise, described buyer node and described seller node Fail Transaction are notified, updates execution state.
A kind of 3. data trade method based on block chain intelligence contract according to claim 2, it is characterised in that step Between 5 and step 6, in addition to the content of intelligent contract is published to described supervision and known together by step 51, described buyer node Network.
A kind of 4. data trade method based on block chain intelligence contract according to claim 2, it is characterised in that step Between 6 and step 7, in addition to step 61, each node of described supervision common recognition network are reached common understanding, and are generated block, are added to Block chain.
A kind of 5. data trade method based on block chain intelligence contract according to claim 2, it is characterised in that step After 11, in addition to the execution state of intelligent contract is published to described supervision common recognition net by step 12, described checking node Network;Step 13, each node of described supervision common recognition network are reached common understanding, and are generated block, are added in block chain.
6. a kind of data trade method based on block chain intelligence contract according to claim 2-5 any one, it is special Sign is that described buyer node by P2P Web Publishing data trade intelligence contracts, reach by each node for participating in block chain Common recognition, described seller node provides the transaction data after encryption, and carries out the negotiation of intelligent contract.
7. a kind of data trade method based on block chain intelligence contract according to claim 2-5 any one, it is special Sign is that described data trade common recognition network is P2P networks, and data trade is completed by block chain;Described supervision common recognition The node of network is participated in by the third party to participate in business, and the data trade intelligence particulars of a contract are witnessed;Described checking Node is responsible for performing intelligent contract, and key is sent into buyer node according to trading situation.
CN201710701511.XA 2017-08-16 2017-08-16 A kind of data trade method based on block chain intelligence contract CN107464118A (en)

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