CN108011709A - A kind of data trade method based on block chain - Google Patents
A kind of data trade method based on block chain Download PDFInfo
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- CN108011709A CN108011709A CN201710981551.4A CN201710981551A CN108011709A CN 108011709 A CN108011709 A CN 108011709A CN 201710981551 A CN201710981551 A CN 201710981551A CN 108011709 A CN108011709 A CN 108011709A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/40—Authorisation, 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
- G06Q20/401—Transaction verification
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
- H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Strategic Management (AREA)
- Physics & Mathematics (AREA)
- General Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The present invention proposes a kind of data trade method based on block chain, it is characterised in that, this method comprises the following steps:The data providing and data consumer for participating in data trade build a block chain；Data providing binds one or more rights and interests card respectively for its data possessed；Data providing generates data trade in a manner of transferring the possession of rights and interests card to data consumption side；The transaction is broadcasted in alliance's block chain, after verifying legitimacy, charges to designated blocks；The holder of rights and interests card obtains corresponding data by the card.
Description
Technical field
The application belongs to data trade field, more particularly to a kind of data trade method based on block chain.
Background technology
In information-intensive society now, data play more and more important part.Share and the transaction of data, which become, works as
One hot spot of preceding technology and business.Be additionally, since data has larger difference compared with traditional commodities, for example is easily lost,
Easily replicate, it is necessary to maintain secrecy.Thus, traceability, the integrality of transaction data of disposal ability, process of exchange to transaction
And reliability has the requirement of higher.
But in traditional mode of doing business, reaching for transaction generally requires the third-party trade center of dependence, in transaction
The disposal ability of the heart can influence the efficiency of transaction, and the failure of trade center can influence all related sides of transaction.
Moreover, the tracking to conventional transaction process is highly dependent upon traditional center trust authority, such as bank, securities trading
The centralization mechanism such as institute, third-party institution, the verification of transaction can be just completed only by these center trust authorities.
On traditional transaction platform, it is difficult to safeguard that the integrality of transaction data, which is also, nontransparent due to conventional transaction
Property, the history of transaction is difficult to trace, and process of exchange file may also be tampered, thus easily grows fraud.
Therefore, it is necessary to it is a kind of go center, go trust, anti-tamper method of commerce, to ensure that data trade can efficiently pacify
Carry out entirely.
The content of the invention
In view of the above-mentioned problems, present applicant proposes a kind of data trade method based on block chain, it is characterised in that the party
Method includes the following steps:
The data providing and data consumer for participating in data trade build a block chain；
Data providing binds one or more rights and interests card respectively for its data possessed；
Data providing carries out data trade by transferring the possession of rights and interests card to data consumption side on block chain；
The holder of rights and interests card asks corresponding data by the card.
Especially, in the above-mentioned data trade method based on block chain, the rights and interests demonstrate,prove the transfer bag on block chain
Include following steps：
Data providing generates the transaction that rights and interests card is transferred the possession of to data consumption side, and is broadcasted in the block chain network；
That is specified in block chain has the node of write-in authority after the legitimacy of the transaction is verified, will by the mechanism of common recognition
The transaction writes block chain；
Other nodes check the transaction by the inquiry and verification interface of block chain.
Especially, in the above-mentioned data trade method based on block chain, the block chain is alliance's block chain, wherein institute
The mechanism for the common recognition stated is proof of work (POW), and equity proves (POS), the one or more in majority signature.
Especially, in the above-mentioned data trade method based on block chain, data providing and data consumer it is online under
Determine data transaction protocol, generate data trade on line.
Especially, in the above-mentioned data trade method based on block chain, the transaction that data providing is generated includes power
Benefit card and the mark of data consumer, and signed using the private key of data providing；
Other nodes after the data trade of broadcast is received, using data providing public key verifications its signature it is legal
Property.
Especially, in the above-mentioned data trade method based on block chain, the holder of rights and interests card is by card request phase
The data answered include the following steps：
Demonstrate,prove comprising rights and interests in request and signed with the private key of requestor；
Data providing is with its signature of the public key verifications of requestor；
Data providing is demonstrate,proved by the corresponding rights and interests of the block chain query, and checking request person's holding for rights and interests card
Person；
For requestor after by above-mentioned verification, the scope of authority of the data providing according to rights and interests card, number is provided to requestor
According to.
Especially, in the above-mentioned data trade method based on block chain, rights and interests card includes as follows to using
One or more of restriction of authority：Workable data area, usage time limits, access times limit, use flow
Limit and reassignment limits.
Especially, in the above-mentioned data trade method based on block chain, the data set provider is also provided without rights and interests
Card is addressable data.
The above-mentioned data trade method based on block chain realizes transaction decentralization, goes intermediary's trustization, and transaction is transparent
And safeguarded by collective.Thus, this method avoid the data degradation being subjected to the Single Point of Faliure because of trade center, and can subtract
Fraud in few data trade, prevents transaction data to be tampered, improves the security and data traceability of transaction.Make
, just can be complete not via traditional trust authority, such as bank, stock exchange, centralization mechanism of the third-party institution with this method
Into transaction verification.
Brief description of the drawings
Fig. 1 is illustrated that one embodiment according to the application, the schematic diagram of the data transacting system based on block chain.
Fig. 2 is illustrated that one embodiment according to the application, the flow signal of the data trade method based on block chain
Figure.
It is one embodiment according to the application that Fig. 3, which is illustrated that, in the flow diagram of the completion transaction of block chain.
Embodiment
With reference to Figure of description, with specific embodiment to the data trade method described herein based on block chain
It is described in detail.
Fig. 1 is illustrated that one embodiment according to the application, the schematic diagram of the data transacting system based on block chain.
Wherein, participate in the data providing of data trade and data consumer constitutes a block chain network.The network
For a peer-to-peer network (Peer-to-Peer Network), each node can be with direct interaction.
Data providing in Fig. 1 each possesses a collection of data merchandised, in order to facilitate data trade, data providing
(hereinafter referred to as rights and interests card) is demonstrate,proved using rights and interests for every part of one or more data of data binding, is demonstrate,proved with the rights and interests and is carried come mark data
The access of mandate of the supplier to data consumer is those data and the restriction to using.Wherein, restriction data used
Including：Usage time limit, access times limit, using flow restriction and can reassignment limit.These restrictions can basis
The needs of real trade are flexibly set.
Also, in above-mentioned rights and interests card the content of defined can by data providing and data consumer it is online under draft phase
Close together, corresponding rights and interests card is then generated on line, to be traded in block chain.
Such as Fig. 1, data providing 1 is bundled with two rights and interests cards for its data 1, is rights and interests card 1 and rights and interests card 2 respectively；Number
According to provider 2 rights and interests card 3 is bundled with for its data 2.The authorization of rights and interests card 1 and rights and interests card 2 can be different, such as rights and interests card
Access in 1 certain time of mandate to data 1, and rights and interests card 2 authorizes the access to data 1 are carried out with finite number of time.
The process of exchange and history of rights and interests card are all recorded in block record.Since block record is by each section in network
Point collective safeguards, realize transaction record it is traceable, can not distort, thus transaction verification can be complete by the block chain network
Into.
Such as Fig. 1, by transaction, the current holder of rights and interests card 1 is data consumption side A, thus, data consumption side A can be with
Data 1 are initiated with access request by the card, and data providing 1 opens data consumer A after verifying that the request is legal
Corresponding authority.
Summarize to above-mentioned data trade method, it performs step as shown in Fig. 2, wherein：
Step S101：The data providing and data consumer for participating in data trade build a block chain；
Step S102：Data providing binds one or more rights and interests card respectively for its data possessed；
Step S103：Data providing carries out data friendship by transferring the possession of rights and interests card to data consumption side on block chain
Easily；
Step S104：The holder of rights and interests card asks corresponding data by the card.
In one embodiment, the block chain established is alliance's chain, wherein the part credit only specified is higher
Node can just participate in keeping accounts, and relevant Transaction Information can be inquired about and verified to other nodes by API.
Fig. 3 it is particularly shown go out the process merchandised in block chain of rights and interests card, wherein,
Step S201：Data providing generates the transaction that rights and interests card is transferred the possession of to data consumption side, and in the block chain network
Middle broadcast；
Step S202：Accounting nodes in block chain, should by the mechanism of common recognition after the legitimacy of the transaction is verified
Transaction write-in block chain；
Step S203：Other nodes check the transaction by the inquiry and verification interface of block chain.
Common recognition mechanism wherein described in step S202 can be proof of work (POS：Proof of work), equity
Prove (POS：Proof of stake), majority signature in a kind of or various ways combination.
Asymmetric encryption techniques are employed in above-mentioned transaction.Specifically, in order to ensure transferor identity truly with transaction
Safety, the transaction generated in step S201 not only includes the mark of rights and interests card and rights and interests card assignee, and (rights and interests demonstrate,prove assignee
Namely buy the data consumption side of the data usage rights), which can be also encrypted with the private key of data providing,
Do digital signature.
And other nodes can use the public key of data providing to solve the transaction after the data trade of broadcast is received
It is close, if successful decryption, show that the data providing of above-mentioned transaction is true.Otherwise, decryption is unsuccessful, shows to be likely to be
The illegal transaction that data falsification provider identity carries out, thus can be refused by other nodes, block chain will not be charged to, thus should
Illegal transaction can not also be completed.
Heretofore described shared mechanism is that Transaction Information performs fraud when charging to block chain by some in order to prevent
Node distort.
The shared mechanism that can be used has proof of work, and equity proves, majority signature etc..Wherein, proof of work skill
Need to carry out proof of work calculating before art, i.e. block of the generation comprising the transaction.Work amount proves that what is calculated is mainly characterized by
Node needs to do the calculating of certain difficulty, draw one as a result, and other nodes whether hold very much authentication result correct.Example
Such as, proof of work calculates in the following way in one embodiment：To given transaction, the workload demand that we provide
It is that a random integer value nonce is added behind this transaction data, SHA256 Hash fortune is carried out to changed data
Calculate, if obtained Hash result (being represented in the form of 16 systems) is started with " 0000 ", be verified.In order to reach
The target of this proof of work, each node are not verified such as after random integer value nonce is generated, then need not
That stops is incremented by the nonce values, and SHA256 Hash operations are carried out to obtained new data, eligible until there is a node to obtain
Result.At this time, which can be packaged into the transaction block, and can prove that the nonce values of its evaluation work together at this together
Broadcasted in block chain network.
Other nodes, especially accounting nodes can carry out after receiving the block and can prove that the nonce values of its workload
Verification, after the transaction that the confirmation proof of work and block are included is effective, accounting nodes receive the block, by the block
Add in block chain account book.When specifying the node of number all to have received the block, after being logged into account book, above-mentioned transaction is completed
.Other nodes then can inquire about the relevant information of the transaction by the interface that the block chain provides.
After the completion of above-mentioned transaction, the holder of rights and interests card can obtain corresponding data by it.
Specifically, in one embodiment, the holder of rights and interests card initiates data acquisition request to data set provider, should ask
Include rights and interests card in asking, and use the private key signature of requestor.
Data set provider is true in order to ensure the identity of requestor, and data are decrypted with the public key of requestor first,
To be verified to requestor's identity.
In requestor's authentication by rear, data providing will also verify whether rights and interests card is true, and be looked into block chain
The holder of rights and interests card is ask, verifies whether the requestor holds rights and interests card.
After being verified, data providing can demonstrate,prove defined authority according to rights and interests, and corresponding number is provided to requestor
According to.
Specified otherwise is needed, in the present invention, rights and interests card can be set as can not reassignment and can be with reassignment two
Kind form.For can not reassignment rights and interests demonstrate,prove, its assignee cannot again by the rights and interests card transfer other data consumption sides.
And can be demonstrate,proved with the rights and interests of reassignment, assignee can be transferred the possession of other people again, you can be handed over again on the block chain
Easily.
Also, in the present invention, data providing can also realize that data are arranged to shared, for example, without checking request side
Rights and interests card provide some specified datas to requestor.
The above-mentioned data trade method based on block chain realizes transaction decentralization, goes intermediary's trustization, and transaction is transparent
And safeguarded by collective.Thus, this method avoid the data degradation being subjected to the Single Point of Faliure because of trade center, and can subtract
The fraud in data trade is lacked, transaction data can have been prevented to be tampered, security and the data for improving transaction are traceable
Property.
Specific embodiment is had been combined above, and invention has been described for refer to the attached drawing, but it is to be understood that,
Above-mentioned specific implementation is merely illustrative, does not form limiting the scope of the invention.Protection scope of the present invention by
Claim is limited, and is directed to the modification known to those skilled in the art that technical solution is made in claim,
The replacement and combination of equivalence are all fallen within protection scope of the present invention.
Claims (8)
- A kind of 1. data trade method based on block chain, it is characterised in that, this method comprises the following steps:The data providing and data consumer for participating in data trade build a block chain；Data providing binds one or more rights and interests card respectively for its data possessed；Data providing carries out data trade by transferring the possession of rights and interests card to data consumption side on block chain；The holder of rights and interests card asks corresponding data by the card.
- 2. the data trade method based on block chain as claimed in claim 1, it is characterised in that, the rights and interests card is in block chain On transfer include the following steps：Data providing generates the transaction that rights and interests card is transferred the possession of to data consumption side, and is broadcasted in the block chain network；That is specified in block chain has the node of write-in authority after the legitimacy of the transaction is verified, is handed over this by the mechanism of common recognition Easily write-in block chain；Other nodes check the transaction by the inquiry and verification interface of block chain.
- 3. the data trade method based on block chain as claimed in claim 2, it is characterised in that, the block chain is area of alliance Block chain, wherein the mechanism of the common recognition is proof of work (POW), equity proves (POS), one kind or more in majority signature Kind.
- 4. the data trade method based on block chain as claimed in claim 1, it is characterised in that, data providing and data disappear The side of expense online under definite data transaction protocol, generate data trade on line.
- 5. the data trade method based on block chain as claimed in claim 2, it is characterised in that, what data providing was generated Transaction includes rights and interests card and the mark of data consumer, and is signed using the private key of data providing；Other nodes use the legitimacy of its signature of the public key verifications of data providing after the data trade of broadcast is received.
- 6. the data trade method based on block chain as claimed in claim 1, it is characterised in that, the holder of rights and interests card relies on The card asks corresponding data to include the following steps：Demonstrate,prove comprising rights and interests in request and signed with the private key of requestor；Data providing is with its signature of the public key verifications of requestor；Data providing is demonstrate,proved by the corresponding rights and interests of the block chain query, and the holder that checking request person is rights and interests card；For requestor after by above-mentioned verification, the scope of authority of the data providing according to rights and interests card, data are provided to requestor.
- 7. the data trade method based on block chain as claimed in claim 1, rights and interests card includes as follows to using One or more of restriction of authority：Workable data area, usage time limit, access times limit, use flow Limit and reassignment limits.
- 8. the data trade method based on block chain as claimed in claim 1, it is characterised in that the data set provider is also right Specified data, which provides, to be shared, and may have access to without rights and interests card.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016112335556 | 2016-12-27 | ||
| CN201611233555 | 2016-12-27 |
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| CN108011709A true CN108011709A (en) | 2018-05-08 |
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| CN108694586A (en) * | 2018-07-31 | 2018-10-23 | 佛山市甜慕链客科技有限公司 | A kind of method and system being traded by block chain |
| CN108805567A (en) * | 2018-05-22 | 2018-11-13 | 深圳供电局有限公司 | Charging company network transaction settlement method and device |
| CN108846748A (en) * | 2018-05-31 | 2018-11-20 | 杭州秘猿科技有限公司 | A kind of independent process executes the method and device of contract |
| CN108880784A (en) * | 2018-05-28 | 2018-11-23 | 江苏众享金联科技有限公司 | User privacy information shared system under a kind of different trust domain of solution based on block chain |
| CN109067724A (en) * | 2018-07-24 | 2018-12-21 | 中国联合网络通信集团有限公司 | Block chain data trade method, apparatus, equipment and storage medium |
| CN109146482A (en) * | 2018-08-29 | 2019-01-04 | 北京京东尚科信息技术有限公司 | User's right providing method and device based on block chain |
| CN109345247A (en) * | 2018-10-11 | 2019-02-15 | 合肥达朴汇联科技有限公司 | Applied to provider's client resource stream method of commerce, device, equipment and medium |
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| CN108805567A (en) * | 2018-05-22 | 2018-11-13 | 深圳供电局有限公司 | Charging company network transaction settlement method and device |
| CN108880784A (en) * | 2018-05-28 | 2018-11-23 | 江苏众享金联科技有限公司 | User privacy information shared system under a kind of different trust domain of solution based on block chain |
| CN108846748A (en) * | 2018-05-31 | 2018-11-20 | 杭州秘猿科技有限公司 | A kind of independent process executes the method and device of contract |
| CN109067724B (en) * | 2018-07-24 | 2021-01-26 | 中国联合网络通信集团有限公司 | Block chain data transaction method, device, equipment and storage medium |
| CN109067724A (en) * | 2018-07-24 | 2018-12-21 | 中国联合网络通信集团有限公司 | Block chain data trade method, apparatus, equipment and storage medium |
| CN108694586A (en) * | 2018-07-31 | 2018-10-23 | 佛山市甜慕链客科技有限公司 | A kind of method and system being traded by block chain |
| CN109146482A (en) * | 2018-08-29 | 2019-01-04 | 北京京东尚科信息技术有限公司 | User's right providing method and device based on block chain |
| CN109360095A (en) * | 2018-09-27 | 2019-02-19 | 深圳技术大学（筹） | A kind of processing method, device and the terminal device of block chain transaction data |
| CN109345247A (en) * | 2018-10-11 | 2019-02-15 | 合肥达朴汇联科技有限公司 | Applied to provider's client resource stream method of commerce, device, equipment and medium |
| CN109509092A (en) * | 2018-10-16 | 2019-03-22 | 中国传媒大学 | Data trade motivational techniques and system based on alliance's chain |
| CN109584066B (en) * | 2018-10-31 | 2020-09-01 | 阿里巴巴集团控股有限公司 | Privacy transaction based on block chain and application method and device thereof |
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