CN106843774A - A kind of mass-rent construction method of the intelligent contract based on block chain - Google Patents
A kind of mass-rent construction method of the intelligent contract based on block chain Download PDFInfo
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- 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
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Abstract
The invention discloses a kind of mass-rent construction method of the intelligent contract based on block chain, including：1st, contract Party A is signed and is published on the main chain of block chain to the intelligent contract comprising task and rule；2nd, contract Party B claims some contract subtasks and by reclaim message addition on side chain according to the contract task that contract Party A issues；3rd, whether all subtasks of systems inspection Party A contract can be completed by Party B；4th, Party A and Party B's coalition signature issue intelligent contract to block chain main chain, and contract is performed automatically.The building process of the open and clear monitoring contract of the present invention, the implementation procedure of automatic monitoring contract；So as to reduce risk present in mass-rent contract structure and implementation procedure.
Description
Technical field
The invention belongs to block chain technical field, the mass-rent of specifically a kind of intelligent contract based on block chain builds
Method.
Background technology
In social production, either company, mechanism or individual can run into some itself insoluble problems.This
When, company or mechanism may select for such problem to be contracted out to other company or mechanism goes to complete.With the hair of internet
Exhibition, there has been proposed a kind of new solution, the indeterminable problem of enterprise itself is contracted out in freely voluntary form
Unspecific popular method.The task of this outsourcing is generally undertaken by individual, but if it is complete to involve the need for multiple person cooperational
Into task, it is also possible to occur in the form of by the individual production increased income.
It is to give professional tissue or team that traditional outsourcing is more, and this relation is targeted and contract
Property；And the outsourcing scope on internet is then more wide in range, participant can be the professional person in the field, it is also possible to be non-special
Industry personage.This one-to-many outsourcing form is referred to as mass-rent by people, and mass-rent takes full advantage of the back of the body of Internet user's diversification
Scape.Say to a certain extent, mass-rent provides a kind of new way of tissue labour.Internet user is complicated, diversification
Culture, education, region background have then further attracted numerous enterprises to turn to using internet mass-rent acquisition solution.
But the signing of current mass-rent agreement is necessarily dependent upon third-party platform, the information source of demand task it is true
Property depend entirely on third-party confidence level and cannot get substantive guarantee, and need to expend more management cost.For needing
The solution party of task is asked, due to without effective solution surveillance and control measure, causing the solution of current mass-rent very different,
Even exist it is many plagiarize, false phenomenon, problem originator can not be satisfactorily resolved scheme and the consuming time and
Cost；The intellectual property of another aspect solution presenter is also monitored because lacking to contract implementation procedure, and cannot be had
The protection of effect.
The content of the invention
The present invention is, in order to solve the weak point that above-mentioned prior art is present, to propose a kind of intelligence conjunction based on block chain
Mass-rent construction method about, the data storage to solve centralization by the distributed data storage method of decentralization is deposited
Information easily distort, unreliable problem, solve to perform state to contract by way of intelligent contract program is performed automatically
Monitoring problem, so as to reduce risk present in mass-rent contract structure and implementation procedure.
The present invention is adopted the following technical scheme that to solve technical problem：
A kind of the characteristics of mass-rent construction method of intelligent contract based on block chain of the present invention is to perform as follows：
Step one, user's collection of the definition intelligent contract are combined into U={ Vα, V }, VαIt is the Party A of the intelligent contract, V
For the Party B of the intelligent contract gathers, and have：V={ V1,V2,...,Vi,...,Vm, ViFor i-th in Party B set
User, 1≤i≤m；
The issue of step 2, intelligent contract task and rule：
The Party A VαThe intelligent contract comprising task and rule is signed with own private key, and will be signed by miner
The intelligent contract crossed is added on the main chain of block chain as block TR；The task of the intelligent contract is designated as T={ t1,
t2,...,tp,...,tn, tpIt is p-th subtask；1≤p≤n；
Step 3, contract task are claimed：
Number of blocks on the side chain of step 3.1, definition with the block TR as starting point initializes ρ=0 as ρ；
Step 3.2, i-th user V of hypothesisiExpect to claim several subtasks in the task, then i-th user Vi
Inquire about on the side chain that the block TR is starting point with the presence or absence of termination block；If in the presence of, then it represents that the intelligent contract has been signed
It is fully booked into, if not existing, performs step 3.3；
Step 3.3, initialization p=1；
Step 3.4, by i-th user ViMark p-th subtask t in the taskpClaim wish stateWhenRepresent i-th user ViExpect to claim p-th subtask tp；WhenRepresent i-th user ViDo not recognize
Lead p-th subtask tp；
Step 3.5, p+1 is assigned to p after, return to step 3.4, untill p=n, so as to obtain i-th user
ViWish state is claimed to all subtasks；
Step 3.6, judgementWhether set up, if so, then represent i-th user ViExpect to claim all sons
Task and energy complete independently, after signing the intelligent contract according to the rule of the intelligent contract, perform step 3.7；It is no
Then, step 3.8 is performed；
Step 3.7, the Party A VαWith i-th user ViCarry out coalition signature to the intelligent contract signed respectively, and by
After as block be added on the main chain of block chain the intelligent contract that coalition signature is crossed by miner, miner is being with the block TR
Addition on the side chain of starting point terminates block；
Step 3.8, i-th user ViWish state of claiming to each subtask in the task is signed, and
The all wish states of claiming signed are added on the side chain of block chain by miner, while ρ+1 is assigned into ρ；
Step 4, check block chain side chain, judge on side chain participate in intelligence contract all users whether can mass-rent it is complete
Into all subtasks of the intelligent contract：
Step 4.1, all users defined on the side chain of the block chain are { V1′,V2′,...,Vk′,...,Vρ′}；Vk′
Represent k-th user on the side chain, 1≤k≤ρ；Define q-th subtask tqThe user for being distributed to is designated as Vq″；1≤q
≤n；Initialization Vq"=NULL；
Step 4.2, initialization q=1；
Step 4.3, initialization k=1；
Step 4.4, judgementWhether set up, if so, then by Vk' it is assigned to Vq", and q+1 is assigned to q, return
Step 4.3, untill q=n；Otherwise, k+1 is assigned to k, return to step 4.4, untill k=ρ；
Step 4.5, initialization q=1；
Step 4.6, judge Vq" whether=NULL sets up, if so, the subtask for existing and not claiming is represented, then waits it
His user claims and return to step 3.2；If not, q+1 is then assigned to q, return to step 4.6, untill q=n；
Step 4.7, all subtasks are claimed and are assigned, so as to the rule according to the intelligent contract signs institute
State intelligent contract；
Step 4.8, the Party A VαIntelligent contract with the user of all distribution subtasks respectively to being signed joins
Close signature, and after the intelligent contract that coalition signature is crossed is added on the main chain of block chain as block by miner, miner with
The block TR terminates block for the addition on the side chain of starting point.
Compared with prior art, the beneficial effects of the present invention are：
1st, the present invention causes that the mass-rent for building intelligence contract is not having using the Distributed Storage technology based on block chain
Have it is third-party in the case of it is reliable and can not distort, and mass-rent intelligence contract is performed in the way of program and has ensured that contract performs knot
The predictability of fruit.
2nd, the present invention is issued on block chain main chain by by contract task with the formal distribution formula of block, so as to eliminate
Third-party intermediate link so that task publisher and problem solver can directly get in touch；The issue of contract task is existed
Also open and clear, demand the content in source and rule of task are caused on block chain main chain can not distort, so as to ensure that contract
The reliability of task issue.
3rd, the present invention is recorded in the branch headed by the contract task block by by user to the completion wish of contract task
On chain, so as to have recorded the whole process that contract task is claimed, it is ensured that contract signs the open and clear of process, also ensure that label
The reliability of the contract ordered.
4th, the mass-rent contract that the present invention is signed is by both sides' coalition signature, issues in the form of an executable program in area
The intelligent contract of block chain main chain, the characteristics of with automatic execution, so that the predictability of contract implementing result has been ensured, so as to keep away
Having exempted from contract both sides may be because result be discontented with the problem that dispute occurs in contract implementation procedure.
Brief description of the drawings
Fig. 1 flow charts of the present invention；
Fig. 2 block chain schematic diagrames of the present invention.
Specific embodiment
As shown in figure 1, in the present embodiment, a kind of mass-rent construction method of the intelligent contract based on block chain is to be applied to area
The intelligent contract of mass-rent is set up between block chain user, is specifically performed as follows：
The user's collection for participating in building mass-rent intelligence contract in step one, definition block chain user is combined into U={ Vα, V }, VαFor
The Party A that mass-rent intelligence contract builds, V is Party B's set that mass-rent intelligence contract builds, and is had：V={ V1,V2,...,
Vi,...,Vm, ViIt is i-th user in Party B's set, and has 1≤i≤m；
In the present embodiment, it is a P2P network that distributed block chain data storage method is corresponding, all to use the area
The user of block chain storage information all in a peer-to-peer network, non-stop layer node；One block of block chain can be one section
The summation concluded the business between user in time, or an intelligent contract task and rule are signed simultaneously by contract both sides
The intelligent contract of the automatic execution of coalition signature, each block is made up of block head and block main body two parts；Block head is included
The cryptographic Hash of block main body, timestamp and the upper block cryptographic Hash etc. for linking block, block main body is comprising actually active
Information.
The issue of step 2, intelligent contract task and rule：
Party A VαThe intelligent contract comprising task and rule is signed with own private key, then by miner by common recognition
Proof of algorithm signing messages, and the intelligent contract signed is added on the main chain of block chain as block TR；Intelligent contract
Task be designated as T={ t1,t2,...,tp,...,tn, tpIt is p-th subtask；1≤p≤n；The other users of block chain can lead to
Cross inquiry main chain on data or set up block chain contract job enquiry website obtain block chain demand mission bit stream.Because needing
Task is asked to pass through the common recognition of the whole network and be linked on block chain by cryptography method, so ensure that the true of demand task
With can not distort.
Step 3, contract task are claimed：
Number of blocks on the side chain of step 3.1, definition with block TR as starting point initializes ρ=0 as ρ；
In the present embodiment, side chain refers to the chain for recording other users to the contract task reclaim message, so being appointed with contract
The block TR of business and rule issue on main chain is side chain starting point, as shown in Figure 2.User is claimed the information record of demand task
Cause that the information is open and clear on block chain, and cause that reclaim message can not be distorted by cryptography method link, prevent void
Vacation is claimed.
Step 3.2, i-th user V of hypothesisiExpect to claim several subtasks in contract task, then i-th user Vi
Inquiry block TR terminates block to whether there is on the side chain of starting point；If in the presence of, then it represents that intelligent contract has signed completion, should
Contract will not again receive other users and propose to complete the application of contract task；If not existing, step 3.3 is performed；
Step 3.3, initialization p=1；
Step 3.4, by i-th user ViP-th subtask t in mark taskpClaim wish stateWhenRepresent i-th user ViExpect to claim p-th subtask tp；WhenRepresent i-th user ViDo not claim p-th
Subtask tp；
Step 3.5, p+1 is assigned to p after, return to step 3.4, untill p=n, complete by from 1 to n once
Circulation completes user ViMark to being ready completion subtask in task, so as to obtain i-th user ViAll subtasks are recognized
Neck wish state；
Step 3.6, judgementWhether set up, if so, then represent i-th user ViCan complete independently own
Contract subtask, Party A user and the rule of the Party B user according to intelligent contract for claiming contract task of at this moment contract task issue
The intelligent contract is then signed, step 3.7 is performed；If not, then represent i-th user ViCan be only done part of contract
Task, performs step 3.8, by user ViClaim wish record on side chain；
In the present embodiment, if having user can complete independently Party A issue all contract subtasks, Party A preferentially with this
Party B signs intelligent contract the contract subtask is claimed without considering further that other users, and can all sons of complete independently contract
The Party B of task need not be recorded on side chain oneself to claiming for contract task.
Step 3.7, Party A VαWith i-th user ViCoalition signature is carried out to the intelligent contract signed respectively, and by miner
The intelligent contract that coalition signature is crossed is added on the main chain of block chain as block, then by miner with block TR as starting point
Side chain on addition terminate block；Prevent other users from being claimed to the contract task again.
Step 3.8, i-th user ViWish state of claiming to n subtask in task is signed, then by ore deposit
Be added to the wish state of claiming signed on the side chain of block chain by proof of algorithm of knowing together by work, while by the assignment of ρ+1
To ρ；
Step 4, check block chain side chain, judge on side chain participate in intelligence contract all users whether can mass-rent it is complete
Into all subtasks of intelligent contract：
Step 4.1, all users defined on the side chain of block chain are { V1′,V2′,...,Vk′,...,Vρ′}；Vk' represent
K-th user on side chain, 1≤k≤ρ；Define q-th subtask tqThe user for being distributed to is designated as Vq″；1≤q≤n；Initially
Change all of Vq"=NULL；
Step 4.2, initialization q=1；
Step 4.3, initialization k=1；
Step 4.4, judgementWhether set up, if so, then represent that k-th user on side chain can complete q-th conjunction
About subtask, by q-th subtask tqPlan distributes to user Vk' perform Vq"=Vk', q=q+1, return to step 4.3, until q=
Untill n；Otherwise, k+1 is assigned to k, return to step 4.4, untill k=ρ；
In the present embodiment, above-mentioned double-deck circulation is that the state that user on side chain claims contract subtask is checked；One
Whether one subtask of secondary internal layer circular test has user to claim, and outer loop q is represented from 1 to n to be carried out to n subtask successively
Check.
Step 4.5, initialization q=1；
Step 4.6, judge Vq" whether=NULL sets up, if so, the subtask for existing and not claiming is represented, then waits it
His user claims and return to step 3.2；If not, q+1 is then assigned to q, return to step 4.6, untill q=n；With one
Whether secondary circulation searching also has the subtask do not got.If not existing Vq"=NULL then represents that all subtasks can be complete
Into execution step 4.7.
Step 4.7, all subtasks are claimed and are assigned, and are closed so as to sign intelligence according to the rule of intelligent contract
About；
Step 4.8, Party A VαUser with all distribution subtasks carries out coalition signature to the intelligent contract signed, and
After by miner, the intelligent contract that coalition signature is crossed is added on the main chain of block chain as block, miner with block TR as rise
Addition on the side chain of point terminates block.
Claims (1)
1. a kind of mass-rent construction method of the intelligent contract based on block chain, it is characterized in that performing as follows：
Step one, user's collection of the definition intelligent contract are combined into U={ Vα, V }, VαIt is the Party A of the intelligent contract, V is institute
Party B's set of intelligent contract is stated, and is had：V={ V1,V2,...,Vi,...,Vm, ViIt is i-th user in Party B set,
1≤i≤m；
The issue of step 2, intelligent contract task and rule：
The Party A VαThe intelligent contract comprising task and rule is signed with own private key, and will be signed by miner
Intelligent contract is added on the main chain of block chain as block TR；The task of the intelligent contract is designated as T={ t1,t2,...,
tp,...,tn, tpIt is p-th subtask；1≤p≤n；
Step 3, contract task are claimed：
Number of blocks on the side chain of step 3.1, definition with the block TR as starting point initializes ρ=0 as ρ；
Step 3.2, i-th user V of hypothesisiExpect to claim several subtasks in the task, then i-th user ViInquiry
The block TR terminates block to whether there is on the side chain of starting point；If in the presence of, then it represents that the intelligent contract has been signed
Into, if not existing, execution step 3.3；
Step 3.3, initialization p=1；
Step 3.4, by i-th user ViMark p-th subtask t in the taskpClaim wish stateWhenRepresent i-th user ViExpect to claim p-th subtask tp；WhenRepresent i-th user ViDo not claim p-th
Subtask tp；
Step 3.5, p+1 is assigned to p after, return to step 3.4, untill p=n, so as to obtain i-th user ViIt is right
Wish state is claimed in all subtasks；
Step 3.6, judgementWhether set up, if so, then represent i-th user ViExpect to claim all subtasks simultaneously
Energy complete independently, after signing the intelligent contract according to the rule of the intelligent contract, performs step 3.7；Otherwise, perform
Step 3.8；
Step 3.7, the Party A VαWith i-th user ViCoalition signature is carried out to the intelligent contract signed respectively, and by miner
After the intelligent contract that coalition signature is crossed is added on the main chain of block chain as block, miner is with the block TR as starting point
Side chain on addition terminate block；
Step 3.8, i-th user ViWish state of claiming to each subtask in the task is signed, and by miner
The all wish states of claiming signed are added on the side chain of block chain, while ρ+1 is assigned into ρ；
Step 4, the side chain for checking block chain, judge whether all users that intelligent contract is participated on side chain can mass-rent completion institutes
State all subtasks of intelligent contract：
Step 4.1, all users defined on the side chain of the block chain are { V '1,V′2,...,V′k,...,V′ρ}；V′kRepresent
K-th user on the side chain, 1≤k≤ρ；Define q-th subtask tqThe user for being distributed to is designated as V "q；1≤q≤n；
Initialization V "q=NULL；
Step 4.2, initialization q=1；
Step 4.3, initialization k=1；
Step 4.4, judgementWhether set up, if so, then by V 'kIt is assigned to V "q, and q+1 is assigned to q, return to step
4.3, untill q=n；Otherwise, k+1 is assigned to k, return to step 4.4, untill k=ρ；
Step 4.5, initialization q=1；
Step 4.6, judge V "qWhether=NULL sets up, if so, the subtask for existing and not claiming is represented, then waits other users
Claim and return to step 3.2；If not, q+1 is then assigned to q, return to step 4.6, untill q=n；
Step 4.7, all subtasks are claimed and are assigned, so as to sign the intelligence according to the rule of the intelligent contract
Can contract；
Step 4.8, the Party A VαIntelligent contract with the user of all distribution subtasks respectively to being signed carries out joint label
Name, and after by miner, the intelligent contract that coalition signature is crossed is added on the main chain of block chain as block, miner is with described
Block TR terminates block for the addition on the side chain of starting point.
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