CN109816531A - Intelligent contract method of commerce based on double chain framework - Google Patents
Intelligent contract method of commerce based on double chain framework Download PDFInfo
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- CN109816531A CN109816531A CN201910137090.1A CN201910137090A CN109816531A CN 109816531 A CN109816531 A CN 109816531A CN 201910137090 A CN201910137090 A CN 201910137090A CN 109816531 A CN109816531 A CN 109816531A
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Abstract
Present invention discloses a kind of intelligent contract method of commerce based on double chain framework, comprising: centralized configuration is combined with distributed frame S1, obtains centralized and distributed mixed structure；S2, manager are managed intelligent contract using double chain framework；S3, user both sides formulate contract, create intelligent contract；S4, the intelligent contract is digitally signed, and the intelligent contract is passed in the double chain framework and is audited；S5, manager execute corresponding operating according to the auditing result selection of the intelligent contract；S6, when user both sides need to modify contract or abolish contract when, need first be audited through administrator, relevant operation can be performed by rear.It is of the invention it is centralized and distributed combine, the double-chain method for managing intelligent contract transaction, excellent effect is easily achieved, practical.The present invention is also that every a intelligent contract on chain transaction carries out audit inspection, it is ensured that the legitimacy and safety of contract.
Description
Technical field
The present invention relates to a kind of method of commerce of intelligent contract, and in particular to a kind of intelligent contract based on double chain framework
Method of commerce belongs to the innovation and application field of intelligent contract.
Background technique
The concept of intelligent contract (Smart contract) is put forward for the first time in nineteen ninety-five by Nick Szabo, it is a kind of
It is intended to propagate, verify or execute in a manner of information-based the computer protocol of contract.Intelligent contract allows in no third-party feelings
Credible transaction is carried out under condition, these transaction are traceable and irreversible.The purpose of intelligent contract is to provide better than traditional contract
Safety method, and reduce other transaction costs relevant to contract.
From 2016, national governments began to focus on the development of intelligent contract industry, the Ministry of Community Development, the United Nations, English one after another
Government Office, state, Ministry of Industry and Information, China have issued intelligent contract correlation report.2017, both at home and abroad to block chain and intelligence
The research of contract such as blowout is broken out, and each field shows growth trend, and major part all concentrates on digital encryption currency
Transaction.Academic circles at present is to the research of intelligent contract mainly for encoded question, safety problem, privacy concern and performance issue
Deng four aspects, wherein the concerned degree highest of safety and privacy concern.
Intelligent contract as the program on block chain, block chain can be helped preferably to operate, realize it is more multi-functional, therefore
People have very big expectation for intelligent contract technology report.But a DAO attack in 2016, exposes existing
Intelligent contract technology problems.These problems mainly include the following aspects: 1, ununified exploitation and supervision
Standard management.2, lack the counter-measure to risk or crisis.3, lack effective risk management measures.4, relevant method law
Rule are still not perfect, and responsibility judgment is indefinite.
In conclusion how to propose a kind of safer, stronger intelligence of the ability to ward off risks on the basis of existing technology
Contract method of commerce also just becomes current those skilled in that art institute urgent problem to be solved.
Summary of the invention
In view of the prior art there are drawbacks described above, the purpose of the present invention is to propose to a kind of, and the intelligence based on double chain framework is closed
About method of commerce includes the following steps:
S1, centralized configuration is combined with distributed frame, obtains centralized and distributed mixed structure；
S2, manager are managed intelligent contract using double chain framework；
S3, user both sides formulate contract, create intelligent contract；
S4, the intelligent contract is digitally signed, and the transaction that the intelligent contract is passed to the double chain framework is examined
It is audited in core chain；
S5, manager execute corresponding operating according to the auditing result selection of the intelligent contract；
S6, when user both sides need to modify contract or abolish contract, need first audit through administrator, it is executable by rear
Relevant operation.
Preferably, further include following steps:
S7, setting check the time limit, manager according to the inspection time limit, periodically to the conjunction in the chain transaction of the double chain framework
It is about checked, if the intelligent contract that discovery is dangerous, initiates the request of pause contract immediately and broadcast to the transaction to examine
In core chain, when the manager's agreement request in the transaction auditing chain being more than half, then the intelligence contract is stopped operation,
The intelligent contract of remaining safety operates normally.
Preferably, in the centralized and distributed mixed structure described in S1: all users connect in a distributed manner
Together, the center of connection is the transaction auditing chain being made of manager；All managers link together in a distributed manner,
The auditing result of the manager need to be published to the whole network, and the auditing result need to can after the manager for being more than half agrees to
It executes.
Preferably, between two step of S1 and S2, there is also a managers to elect step, specifically includes:
Manager is elected by the personnel in different regions, and each manager is responsible for the intelligent contract in some areas；It is described
Whether just manager can not obtain user and the specific identity of other managers, only other people identity are confirmed by zero-knowledge proof
Really.
Preferably, double chain framework described in S2 include a chain transaction and a transaction auditing chain, the chain transaction with
Bi-directional data transmitting can be carried out between the transaction auditing chain.
Preferably, the intelligent contract is digitally signed in S4, is specifically comprised the following steps:
Manager carries out self verification to intelligent contract, after self verification is errorless, carries out packing processing to the intelligent contract, and
It is digitally signed with private key；Comprising being used for anti-fake hash function in the digital signature.
Preferably, auditing result selection execution corresponding operating of the manager according to the intelligent contract in S5, specifically includes
Following steps:
Manager obtains the auditing result of the intelligent contract, and for the intelligent contract that audit passes through, the manager is added
Enter in chain transaction；For the intelligent contract that the audit fails, the manager is returned to user both sides and illustration.
Compared with prior art, advantages of the present invention is mainly reflected in the following aspects:
It is of the present invention it is centralized and distributed combine, the double-chain method for managing intelligent contract transaction, be not used only
Excellent effect, and be easily achieved, there is very high practicability.The present invention is also chain transaction using the method for addition audit chain
On every a intelligent contract carry out audit inspection, it is ensured that the legitimacy and safety of contract may meet in face of intelligent contract
The attack received can control prevention in time.Meanwhile the centralized and distributed method combined of the present invention, so that side
Method integrally existing distributed high computing capability and low cost, possess again centralization stability and be convenient for coordinating pipe rationality, then
In addition zero-knowledge proof method used in the present invention, further ensure that safety of the user information in transmission process.
In addition, the present invention also provides reference for other relevant issues in same domain, can be opened up on this basis
Extension is stretched, and is applied in other technical solutions about intelligent contract method of commerce, has very wide application prospect.
Just attached drawing in conjunction with the embodiments below, the embodiment of the present invention is described in further detail, so that of the invention
Technical solution is more readily understood, grasps.
Detailed description of the invention
Fig. 1 is the flow diagram of the method for the present invention；
Fig. 2 is mixed structure schematic diagram centralized and distributed in the present invention.
Specific embodiment
As shown in Figure 1, present invention discloses a kind of intelligent contract method of commerce based on double chain framework, including walk as follows
It is rapid:
S1, centralized configuration is combined with distributed frame, obtains centralized and distributed mixed structure.
S2, manager are managed intelligent contract using double chain framework.The double chain framework includes a transaction
Chain and a transaction auditing chain, can carry out bi-directional data transmitting between the chain transaction and the transaction auditing chain.
S3, user both sides formulate contract, create intelligent contract.
S4, the intelligent contract is digitally signed, and the intelligent contract is passed to the friendship of the double chain framework
Easily audited in audit chain.
S5, manager execute corresponding operating according to the auditing result selection of the intelligent contract.
Manager obtains the auditing result of the intelligent contract, and for the intelligent contract that audit passes through, the manager will
It is added in chain transaction.For the intelligent contract that the audit fails, the manager is returned to user both sides and illustrates original
Cause.
S6, when user both sides need to modify contract or abolish contract when, need first be audited through administrator, can after
Execute relevant operation.
Intelligent contract method of commerce based on double chain framework of the invention, further includes following steps:
S7, setting check the time limit, manager according to the inspection time limit, periodically to the conjunction in the chain transaction of the double chain framework
It is about checked, if the intelligent contract that discovery is dangerous, initiates the request of pause contract immediately and broadcast to the transaction to examine
In core chain, when the manager's agreement request in the transaction auditing chain being more than half, then the intelligence contract is stopped operation,
The intelligent contract of remaining safety operates normally.
As shown in Fig. 2, in centralized and distributed mixed structure described in S1: all users connect in a distributed manner
It is connected together, the center of connection is the transaction auditing chain being made of manager.All managers are connected to one in a distributed manner
It rises, the auditing result of the manager need to be published to the whole network, and the auditing result need to be after the manager for being more than half agrees to
It can execute.
Between two step of S1 and S2, there is also a managers to elect step, specifically includes:
Manager by different regions relevant departments and professional auditor elect, each manager is responsible for some areas
Interior intelligent contract.The manager does not have right of veto by one vote, and acquired results need to broadcast the whole network.The manager can not obtain use
The specific identity of family and other managers only confirm whether other people identity are correct by zero-knowledge proof.
The intelligent contract is digitally signed in S4, is specifically comprised the following steps:
Manager carries out self verification to intelligent contract, after self verification is errorless, carries out packing processing to the intelligent contract, and
It is digitally signed with private key.Comprising being used for anti-fake hash function in the digital signature.Due to the hash function
Discrete nature has the characteristics that one-way and can not forge, therefore in addition to signer, other people can not generate same number
Word signature, to play anti-fake effect.
It is of the present invention it is centralized and distributed combine, the double-chain method for managing intelligent contract transaction, not only
Using effect is excellent, and is easily achieved, and has very high practicability.The present invention is also using the method for addition audit chain, to hand over
Every a intelligent contract on easy chain carries out audit inspection, it is ensured that the legitimacy and safety of contract, it can in face of intelligent contract
The attack that can be subjected to can control prevention in time.Meanwhile the centralized and distributed method combined of the present invention, make
Method integrally existing distributed high computing capability and low cost, possess again centralization stability and convenient for coordinate and manage
Property, along with zero-knowledge proof method used in the present invention, it further ensure that peace of the user information in transmission process
Quan Xing.
In addition, the present invention also provides reference for other relevant issues in same domain, can be opened up on this basis
Extension is stretched, and is applied in other technical solutions about intelligent contract method of commerce, has very wide application prospect.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit and essential characteristics of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention, and any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of intelligent contract method of commerce based on double chain framework, which comprises the steps of:
S1, centralized configuration is combined with distributed frame, obtains centralized and distributed mixed structure；
S2, manager are managed intelligent contract using double chain framework；
S3, user both sides formulate contract, create intelligent contract；
S4, the intelligent contract is digitally signed, and the transaction that the intelligent contract is passed to the double chain framework is examined
It is audited in core chain；
S5, manager execute corresponding operating according to the auditing result selection of the intelligent contract；
S6, when user both sides need to modify contract or abolish contract, need first audit through administrator, it is executable by rear
Relevant operation.
2. the intelligent contract method of commerce according to claim 1 based on double chain framework, which is characterized in that further include as
Lower step:
S7, setting check the time limit, manager according to the inspection time limit, periodically to the conjunction in the chain transaction of the double chain framework
It is about checked, if the intelligent contract that discovery is dangerous, initiates the request of pause contract immediately and broadcast to the transaction to examine
In core chain, when the manager's agreement request in the transaction auditing chain being more than half, then the intelligence contract is stopped operation,
The intelligent contract of remaining safety operates normally.
3. the intelligent contract method of commerce according to claim 1 based on double chain framework, which is characterized in that the institute in S1
In the centralized and distributed mixed structure stated: all users link together in a distributed manner, and the center of connection is by pipe
The transaction auditing chain of reason person's composition；All managers link together in a distributed manner, and the auditing result of the manager needs
It is published to the whole network, the auditing result need to agree to that rear is executable by the manager more than half.
4. the intelligent contract method of commerce according to claim 1 based on double chain framework, which is characterized in that in S1 and S2
Between two steps, there is also a managers to elect step, specifically includes:
Manager is elected by the personnel in different regions, and each manager is responsible for the intelligent contract in some areas；It is described
Whether just manager can not obtain user and the specific identity of other managers, only other people identity are confirmed by zero-knowledge proof
Really.
5. the intelligent contract method of commerce according to claim 1 based on double chain framework, it is characterised in that: described in S2
Double chain framework includes a chain transaction and a transaction auditing chain, can be carried out between the chain transaction and the transaction auditing chain
Bi-directional data transmitting.
6. the intelligent contract method of commerce according to claim 1 based on double chain framework, which is characterized in that institute in S4
It states intelligent contract to be digitally signed, specifically comprise the following steps:
Manager carries out self verification to intelligent contract, after self verification is errorless, carries out packing processing to the intelligent contract, and
It is digitally signed with private key；Comprising being used for anti-fake hash function in the digital signature.
7. the intelligent contract method of commerce according to claim 1 based on double chain framework, which is characterized in that managed in S5
Person executes corresponding operating according to the auditing result selection of the intelligent contract, specifically comprises the following steps:
Manager obtains the auditing result of the intelligent contract, and for the intelligent contract that audit passes through, the manager is added
Enter in chain transaction；For the intelligent contract that the audit fails, the manager is returned to user both sides and illustration.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112929177A (en) * | 2020-12-29 | 2021-06-08 | 合肥达朴汇联科技有限公司 | Block chain anonymous user auditing method and system applied to block chain server |
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| CN107911216A (en) * | 2017-10-26 | 2018-04-13 | 矩阵元技术（深圳）有限公司 | A kind of block chain transaction method for secret protection and system |
| CN108664787A (en) * | 2018-05-15 | 2018-10-16 | 深圳市网心科技有限公司 | Contract deployment, call method, contract audit equipment, storage medium and system |
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2019
- 2019-02-25 CN CN201910137090.1A patent/CN109816531B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107911216A (en) * | 2017-10-26 | 2018-04-13 | 矩阵元技术（深圳）有限公司 | A kind of block chain transaction method for secret protection and system |
| CN108664787A (en) * | 2018-05-15 | 2018-10-16 | 深圳市网心科技有限公司 | Contract deployment, call method, contract audit equipment, storage medium and system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112929177A (en) * | 2020-12-29 | 2021-06-08 | 合肥达朴汇联科技有限公司 | Block chain anonymous user auditing method and system applied to block chain server |
| CN112929177B (en) * | 2020-12-29 | 2024-05-03 | 合肥达朴汇联科技有限公司 | Block chain anonymous user auditing method and system applied to block chain server |
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