CN108399571A - Unsecured method of commerce and system based on block chain intelligence contract - Google Patents
Unsecured method of commerce and system based on block chain intelligence contract Download PDFInfo
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- CN108399571A CN108399571A CN201810087945.XA CN201810087945A CN108399571A CN 108399571 A CN108399571 A CN 108399571A CN 201810087945 A CN201810087945 A CN 201810087945A CN 108399571 A CN108399571 A CN 108399571A
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- G—PHYSICS
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- 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
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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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
- H04L9/32—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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Abstract
The invention discloses a kind of unsecured method of commerce and system based on block chain intelligence contract, create intelligent contract by the input side that merchandises, and added in intelligent contract：Transaction amount, transaction public key, intelligent contract is published in block chain network；Transaction output side will confirm that information of participating in business is sent in intelligent contract using private key signature, and intelligent contract comes into force, and freezes transaction amount；It is completed when merchandising under chain, transaction input side will confirm that transaction is completed information and is sent in intelligent contract using private key signature, intelligent contract defrosting transaction amount, and transaction amount is transferred to transaction output side；Alternatively, not completed when merchandising under chain, then merchandise input side and transaction output Fang Jun will confirm that transaction cancels information and is sent to intelligent contract, intelligent contract releasing using key signature, and transaction amount is back to transaction input side；It tenders guarantee without third-party platform, can not only ensure the fair and just of transaction, and application scenarios are more, the scope of application is wider.
Description
Technical field
The present invention relates to field of computer technology, especially a kind of unsecured method of commerce based on block chain intelligence contract
And corresponding transaction system.
Background technology
As the technologies such as e-commerce, internet develop, network payment, mobile payment etc. have become very common.At present
All there are one common ground for all electric network payments, that is, need third-party platform to assure, i.e., payer first pays currency
Then third party gives the side of being paid for by Third-party payment again, ensure the evil that is fair and just, and being likely to occur of transaction with this
Meaning such as is broken one's promise, cheats at the behaviors.
But the current means of payment is equally there is also many drawbacks, as data that third party grasps are possible to be destroyed, take off
From stranger's transaction scene etc. other than third-party platform, also third party guarantees generally can all be collected because of the problem of cost
A certain number of commissions.
Block chain is the novel of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm
Application model.The block chain of narrow sense is a kind of data structure, is sequentially in time successively chained up data block, and with close
Code learns algorithm and ensures that the data stored in this way can not be distorted and can not be forged, and can easily be verified；Broad sense
Block chain technology refer to then include a systems such as this data structure and point-to-point (P2P) network, common recognition mechanism, intelligent contract
The general name for the technical system that row technology is constituted.Usually our so-called block chains refer to the concept of broad sense.Wherein, intelligence is closed
Be approximately a set of promise defined in digital form include contract participant can be executed above these promise agreement, be based on area
Block chain technology exists and realizes.That is, intelligent contract is a kind of computer protocol.
How the advantage of block chain is utilized, including：Decentralization, opening, autonomy, information can not tamper, anonymities
Property the features such as, to structure one without guarantee transaction system, be a urgent problem to be solved.
Invention content
The present invention is to solve the above problems, providing a kind of unsecured method of commerce based on block chain intelligence contract and being
System, tenders guarantee without third-party platform, can not only ensure the fair and just of transaction, and application scenarios are more, applicable
Range is wider.
To achieve the above object, the technical solution adopted by the present invention is：
A kind of unsecured method of commerce based on block chain intelligence contract comprising following steps：
A. transaction input side creates intelligent contract, and is added in intelligent contract：Transaction amount, transaction public key；
B. the intelligent contract is published in block chain network by transaction input side；
C. transaction output side will confirm that information of participating in business is sent in the intelligent contract using private key signature, the intelligence
Energy contract comes into force, and freezes the transaction amount；
D. it is completed when merchandising under chain, transaction input side will confirm that transaction completes information and is sent to the intelligence using private key signature
In energy contract, the intelligent contract defrosting transaction amount, and the transaction amount is transferred to the transaction output side；Alternatively,
E. it is not completed when merchandising under chain, then the transaction input side and transaction output Fang Jun will be true using key signature
Recognize transaction and cancel information and be sent to the intelligent contract, the intelligence contract releases, and the transaction amount is back to described
Merchandise input side.
Preferably, the transaction output side is independently added by the transaction input side, and the transaction input side creates intelligence
When contract, further transaction output side is added in the intelligent contract.
Preferably, the transaction output side includes more than one；When the transaction input side creates intelligent contract, further
The transaction allocation rule of each transaction output side is added in the intelligent contract；When transaction is completed under chain, according to described
Transaction allocation rule automatically distributes the transaction amount to each transaction output side.
Further, the intelligent contract further obtains the transaction output side when being allocated transaction output side
The intelligent contract contracted quantity, and judge contracted quantity whether be more than predetermined threshold value, if so, no longer to the friendship
Easy output side dispensing transaction demand.
Preferably, the transaction output side includes more than one；It is not completed when merchandising under chain, then all participants use
When key signature will confirm that transaction cancellation information is sent to the intelligent contract, the intelligence contract can just release；Wherein, own
Participant includes the transaction input side and all transaction output sides.
Corresponding, the present invention also provides a kind of unsecured transaction systems based on block chain intelligence contract comprising：
Intelligent contract creation module creates intelligent contract by the input side that merchandises, and is added in intelligent contract：Transaction
The amount of money, transaction public key；
Intelligent contract release module, by merchandising, the intelligent contract is published in block chain network by input side；
Intelligent contract signs module, and by merchandising, output side will confirm that information of participating in business is sent to using private key signature
In the intelligence contract, the intelligence contract comes into force, and freezes the transaction amount；
Intelligent contract settlement module is completed when merchandising under chain, and transaction input side will confirm that transaction is completed using private key signature
Information is sent in the intelligent contract, the intelligent contract defrosting transaction amount, and the transaction amount is transferred to the friendship
Easy output side；
Intelligent contract releases module, is not completed when merchandising under chain, then the transaction input side and the transaction exports Fang Jun
It will confirm that transaction cancels information and is sent to the intelligent contract using key signature, the intelligence contract releases, and by the friendship
The easy amount of money is back to the transaction input side.
The beneficial effects of the invention are as follows：
(1) present invention carries out publication transaction using block chain intelligence contract, tenders guarantee without third-party platform, can not only
It is enough to ensure the fair and just of transaction, and application scenarios are more, the scope of application is wider, can be applied at any time.
(2) the present invention is based on cryptography mechanism, the addition transaction public key in intelligent contract, and used by participant of merchandising
Private key signature is traded confirmation, realizes that transaction executes and really rests in participant on hand, reduces the trust cost concluded the transaction,
And safety higher.
(3) present invention can protect the privacy of both parties using the anonymity of block chain；
(4) intelligent contract of the invention uses the validation testing of private key signature, especially suitable for the abolishable transaction of contract
Scene, as long as in the case that all participants all confirm cancellation, contract can be cancelled, to avoid the transaction amount quilt in contract
Freeze.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and constitutes the part of the present invention, this hair
Bright illustrative embodiments and their description are not constituted improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is a kind of general flow chart of the unsecured method of commerce based on block chain intelligence contract of the present invention；
Fig. 2 is a kind of structural schematic diagram of the unsecured transaction system based on block chain intelligence contract of the present invention.
Specific implementation mode
In order to keep technical problems, technical solutions and advantages to be solved clearer, clear, tie below
Closing accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
A kind of unsecured method of commerce based on block chain intelligence contract comprising following steps：
A. transaction input side creates intelligent contract, and is added in intelligent contract：Transaction amount, transaction public key；
B. the intelligent contract is published in block chain network by transaction input side；
C. transaction output side will confirm that information of participating in business is sent in the intelligent contract using private key signature, the intelligence
Energy contract comes into force, and freezes the transaction amount；
D. it is completed when merchandising under chain, transaction input side will confirm that transaction completes information and is sent to the intelligence using private key signature
In energy contract, the intelligent contract defrosting transaction amount, and the transaction amount is transferred to the transaction output side；Alternatively,
E. it is not completed when merchandising under chain, then the transaction input side and transaction output Fang Jun will be true using key signature
Recognize transaction and cancel information and be sent to the intelligent contract, the intelligence contract releases, and the transaction amount is back to described
Merchandise input side.
In the present embodiment, the parameter transaction of the intelligence contract includes：Merchandise input side, merchandise output side, transaction amount,
Transaction public key, transaction allocation rule.The transaction output side is independently added by the transaction input side, the transaction input side wound
When building intelligent contract, further transaction output side is added in the intelligent contract.The transaction output side include one with
On；When the transaction input side creates intelligent contract, the transaction allocation rule of each transaction output side is further added to institute
It states in intelligent contract；When transaction is completed under chain, the transaction amount is distributed to each automatically according to the transaction allocation rule
A transaction output side.
In order to ensure trading efficiency, transaction input side can limitation transaction output side can not when publication intelligent contract
While multiple effective intelligent contracts of contracting.Intelligent contract is when being allocated transaction output side described in the present embodiment, into one
Step obtains the quantity for the intelligent contract of the transaction output side contracted, and whether the quantity that judges to have contracted is more than default threshold
Value, if so, no longer to transaction output side dispensing transaction demand.
The transaction of the present embodiment is abolishable, if transaction can not be completed or be closed because other business needs to release under chain
About, only need all participants that can release contract using private key signature confirmation.Specifically：When there are one the output sides of merchandising,
Then need to only merchandise input side and transaction output side both sides confirmed using key signature, you can releasing contract；When the transaction exports
When side includes more than one；It is not completed when merchandising under chain, then all participants will confirm that letter is cancelled in transaction using key signature
When breath is sent to the intelligent contract, the intelligence contract can just release；Wherein, all participants include the transaction input side
And all transaction output sides.
As shown in Fig. 2, the present invention also provides a kind of unsecured transaction systems based on block chain intelligence contract comprising：
Intelligent contract creation module creates intelligent contract by the input side that merchandises, and is added in intelligent contract：Transaction
The amount of money, transaction public key；
Intelligent contract release module, by merchandising, the intelligent contract is published in block chain network by input side；
Intelligent contract signs module, and by merchandising, output side will confirm that information of participating in business is sent to using private key signature
In the intelligence contract, the intelligence contract comes into force, and freezes the transaction amount；
Intelligent contract settlement module is completed when merchandising under chain, and transaction input side will confirm that transaction is completed using private key signature
Information is sent in the intelligent contract, the intelligent contract defrosting transaction amount, and the transaction amount is transferred to the friendship
Easy output side；
Intelligent contract releases module, is not completed when merchandising under chain, then the transaction input side and the transaction exports Fang Jun
It will confirm that transaction cancels information and is sent to the intelligent contract using key signature, the intelligence contract releases, and by the friendship
The easy amount of money is back to the transaction input side.
It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment weight
Point explanation is all difference from other examples, and the same or similar parts between the embodiments can be referred to each other.
For system embodiments, since it is basically similar to the method embodiment, thus description it is fairly simple, related place referring to
The part of embodiment of the method illustrates.
Also, herein, the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment including a series of elements includes not only those elements, but also includes
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.In addition, those of ordinary skill in the art can manage
Solution realizes that all or part of step of above-described embodiment can be completed by hardware, can also be instructed by program relevant
Hardware is completed, and the program can be stored in a kind of computer readable storage medium, and storage medium mentioned above can be with
It is read-only memory, disk or CD etc..
The preferred embodiment of the present invention has shown and described in above description, it should be understood that the present invention is not limited to this paper institutes
The form of disclosure is not to be taken as excluding other embodiments, and can be used for other combinations, modifications, and environments, and energy
Enough in this paper invented the scope of the idea, modifications can be made through the above teachings or related fields of technology or knowledge.And people from this field
The modifications and changes that member is carried out do not depart from the spirit and scope of the present invention, then all should be in the protection of appended claims of the present invention
In range.
Claims (6)
1. a kind of unsecured method of commerce based on block chain intelligence contract, which is characterized in that include the following steps：
A. transaction input side creates intelligent contract, and is added in intelligent contract：Transaction amount, transaction public key；
B. the intelligent contract is published in block chain network by transaction input side；
C. transaction output side will confirm that information of participating in business is sent in the intelligent contract using private key signature, and the intelligence is closed
It about comes into force, and freezes the transaction amount；
D. it is completed when merchandising under chain, transaction input side will confirm that transaction completion information is sent to the intelligence and closes using private key signature
In about, the intelligent contract defrosting transaction amount, and the transaction amount is transferred to the transaction output side；Alternatively,
E. it is not completed when merchandising under chain, then the transaction input side and transaction output Fang Jun will confirm that friendship using key signature
Easily cancel information and be sent to the intelligent contract, the intelligence contract releases, and the transaction amount is back to the transaction
Input side.
2. a kind of unsecured method of commerce based on block chain intelligence contract according to claim 1, it is characterised in that：Institute
It states transaction output side independently to be added by the transaction input side, when the transaction input side creates intelligent contract, will further hand over
Easy output side is added in the intelligent contract.
3. a kind of unsecured method of commerce based on block chain intelligence contract according to claim 1, it is characterised in that：Institute
It includes more than one to state transaction output side；When the transaction input side creates intelligent contract, further by each transaction output side
Transaction allocation rule be added in the intelligent contract；It is automatic according to transaction allocation rule when transaction is completed under chain
The transaction amount is distributed to each transaction output side.
4. a kind of unsecured method of commerce based on block chain intelligence contract according to claim 3, it is characterised in that：Institute
Intelligent contract is stated when being allocated transaction output side, further obtains the intelligent contract of the transaction output side contracted
Quantity, and judgement has contracted quantity whether more than predetermined threshold value, if so, no longer being needed to transaction output side dispensing transaction
It asks.
5. a kind of unsecured method of commerce based on block chain intelligence contract according to claim 1, it is characterised in that：Institute
It includes more than one to state transaction output side；It is not completed when merchandising under chain, then all participants will confirm that friendship using key signature
When easily cancellation information is sent to the intelligent contract, the intelligence contract can just release；Wherein, all participants include the friendship
The easily side of input and all transaction output sides.
6. a kind of unsecured transaction system based on block chain intelligence contract, which is characterized in that including：
Intelligent contract creation module creates intelligent contract by the input side that merchandises, and is added in intelligent contract：Trade gold
Volume, transaction public key；
Intelligent contract release module, by merchandising, the intelligent contract is published in block chain network by input side；
Intelligent contract signs module, will confirm that information of participating in business is sent to by merchandising output side using private key signature described in
In intelligent contract, the intelligence contract comes into force, and freezes the transaction amount；
Intelligent contract settlement module is completed when merchandising under chain, and transaction input side will confirm that information is completed in transaction using private key signature
It is sent in the intelligent contract, intelligent contract thaws the transaction amount, and it is defeated that the transaction amount is transferred to the transaction
The side of going out；
Intelligent contract releases module, is not completed when merchandising under chain, then the transaction input side and transaction output Fang Jun are used
Key signature will confirm that transaction cancels information and is sent to the intelligent contract, and the intelligence contract releases, and by the trade gold
Volume is back to the transaction input side.
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Cited By (20)
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| CN109359978A (en) * | 2018-10-08 | 2019-02-19 | 全链通有限公司 | Intelligent contract method of commerce and system based on block chain network |
| CN109389469A (en) * | 2018-09-30 | 2019-02-26 | 中链科技有限公司 | Boarding card method of commerce and device based on block chain |
| CN109583891A (en) * | 2018-11-14 | 2019-04-05 | 咪咕文化科技有限公司 | Information processing method, device and storage medium |
| CN109615513A (en) * | 2018-11-02 | 2019-04-12 | 克洛斯比尔有限公司 | For value to be exchanged in block chain or the method and system of article even exchange |
| CN109635575A (en) * | 2018-11-30 | 2019-04-16 | 无锡井通网络科技有限公司 | Intelligent contract signs method and device |
| CN109636602A (en) * | 2018-12-04 | 2019-04-16 | 武汉东湖大数据交易中心股份有限公司 | A kind of safety certification management system based on block chain big data |
| CN109727131A (en) * | 2018-12-28 | 2019-05-07 | 苏州鸿链信息科技有限公司 | Method of commerce and system are executed under a kind of chain based on block chain contract layer |
| CN109726997A (en) * | 2019-01-09 | 2019-05-07 | 广州闪链区块链科技有限公司 | A kind of gold register auditing method, device and storage medium based on block chain |
| CN109727033A (en) * | 2018-12-29 | 2019-05-07 | 杭州趣链科技有限公司 | A kind of Data Access Security control method based on block chain |
| CN109741182A (en) * | 2018-12-29 | 2019-05-10 | 杭州趣链科技有限公司 | A kind of secure data method of commerce issued based on block chain token |
| CN109743182A (en) * | 2019-01-21 | 2019-05-10 | 中国联合网络通信集团有限公司 | Intelligent contract based on block chain checks and approves method and system |
| CN110084066A (en) * | 2019-04-30 | 2019-08-02 | 杭州复杂美科技有限公司 | A kind of shielded repayment method of privacy information and system, equipment and storage medium |
| CN110223067A (en) * | 2019-06-12 | 2019-09-10 | 北京航空航天大学 | A pair of of pay this extra method and system under a kind of chain with decentralization characteristic |
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| CN109389469A (en) * | 2018-09-30 | 2019-02-26 | 中链科技有限公司 | Boarding card method of commerce and device based on block chain |
| CN109359978A (en) * | 2018-10-08 | 2019-02-19 | 全链通有限公司 | Intelligent contract method of commerce and system based on block chain network |
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| CN109583891A (en) * | 2018-11-14 | 2019-04-05 | 咪咕文化科技有限公司 | Information processing method, device and storage medium |
| CN109635575A (en) * | 2018-11-30 | 2019-04-16 | 无锡井通网络科技有限公司 | Intelligent contract signs method and device |
| CN109636602A (en) * | 2018-12-04 | 2019-04-16 | 武汉东湖大数据交易中心股份有限公司 | A kind of safety certification management system based on block chain big data |
| CN109727131A (en) * | 2018-12-28 | 2019-05-07 | 苏州鸿链信息科技有限公司 | Method of commerce and system are executed under a kind of chain based on block chain contract layer |
| CN109741182A (en) * | 2018-12-29 | 2019-05-10 | 杭州趣链科技有限公司 | A kind of secure data method of commerce issued based on block chain token |
| CN109727033A (en) * | 2018-12-29 | 2019-05-07 | 杭州趣链科技有限公司 | A kind of Data Access Security control method based on block chain |
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