CN107103405A - A kind of mass-rent system and its building method based on block chain technology - Google Patents
A kind of mass-rent system and its building method based on block chain technology Download PDFInfo
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- CN107103405A CN107103405A CN201710172228.2A CN201710172228A CN107103405A CN 107103405 A CN107103405 A CN 107103405A CN 201710172228 A CN201710172228 A CN 201710172228A CN 107103405 A CN107103405 A CN 107103405A
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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
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/602—Providing cryptographic facilities or services
Abstract
The invention discloses a kind of mass-rent system based on block chain technology and its building method, system includes application layer, block link layer and the data storage layer being sequentially connected, the block link layer includes the block of some interconnections, and the block includes intelligent contract template；The application layer is used to edit and typing employer and worker's information；The intelligent contract template is reached for user profile registration, user task mass-rent condition, task mass-rent result collects and creates and change intelligent contract；The detailed description information and task result that the data storage layer is used to store the task of former data message upload information；The cryptographic Hash of the former data message is preserved by the block link layer.Transaction can be automatically performed by being needed not move through the invention enables employer and worker in third party intermediary, and the data of block link layer need not rely on central database, so that Single Point of Faliure problem is not present, and possess can not tamper and trackability for data.
Description
Technical field
The present invention relates to cyberspace security technology area, more particularly to a kind of mass-rent system based on block chain technology and
Its building method.
Background technology
In recent years, increasing enterprise starts a kind of mode of operation for selecting mass-rent to complete task as it.Mass-rent is
One kind of electric business pattern, by assembling each global local labourer, is that enterprises and individuals etc. provide solution, covers
Field includes engineering manufacture, webpage development, Art Design etc..In numerous mass-rent platforms, such as Freelancer, oDesk,
Amazon Mechanical Turk, UBER and one of the chief characters in "Pilgrimage To The West" who was supposedly incarnated through the spirit of pig, a symbol of man's cupidity's net, employer issue task in third party's mass-rent platform, worker
By competing paid service is provided for employer.
The appearance of the mass-rent platform of specialty, solves the current demand in some specific industries, task is completed by internet
The form of remuneration is obtained, region, time restriction is broken through, is put on someone's head, called for bid online using prize drawing, it is point-to-point the form such as to employ, promote
The Optimum utilizations of various resources.Such as one of the chief characters in "Pilgrimage To The West" who was supposedly incarnated through the spirit of pig, a symbol of man's cupidity's net, was set up from 2006, and the objective group of ten million prestige was had accumulated which till now
Body, accumulation turnover nearly 5,000,000,000；The objective number of prestige is enlivened more than 1,600,000 within nearly 1 year, dealing money is more than 2,000,000,000.
In traditional mass-rent pattern, employer and worker are almost required for relying on believable third party handling task group
The work such as hair, transaction and task assessment.Although in most cases this kind of system is all gone on well, this kind of system and tradition
Financial institution be equally limited by " fiduciary mould ", and centralized server can produce Single Point of Faliure problem.It is several recently
Year, to have many accidents to produce be due to service excessively centralized management and causes to go wrong, mainly for system availability with
And privacy leakage problem.Foremost mass-rent company such as Freelancer and UBER in these accidents, 2014, in UBER-
The problem of preventing user from closing and stopping order occurring due to a server failure in state.Another example on
Freelancer runs counter to Privacy Act and the private of user will be used before one in October, 2015, OAIC tissue discoveries Freelancer
People's information：IP address, assumed name and other details are announced out.Another question is existing mass-rent in traditional mass-rent pattern
The task amount of money in journey is preserved by third-party platform, and gives tacit consent to employer and worker believes third-party platform as intermediary machine
Structure will not swallow up the task amount of money, and then not such was the case with for situation.In addition, the presence of third party intermediary, employer can increase
Expenditure cost, worker can then reduce income cost, such as oDesk, and as the intermediary between buyer and contractor, buyer can be straight
Connect and signed a contract with labour, pay professional using oDesk platforms and exchanged with it, oDesk can be extracted therefrom
The commission that 5%-20% is not waited, but also the potential problems existed are that the side of assessment comes as a result for many mass-rent mechanisms
Task is estimated, requester and worker interests can be sometimes damaged.
Mass-rent solution traditional at present is required for relying on trusted third party designing corresponding faith mechanism, excitation set
System is assessed with outcome quality, as trust crisis occurs in increasing third party, and design one kind needs not rely on insincere the
The mass-rent model of tripartite turns into very necessary thing.In order to solve the above problems, the present invention proposes a kind of novel solution party
Case, block chain skill is combined with mass-rent pattern, the problem of being solved by formulating contract without trusted third party, and is based on
Under the model, the scheme that employer and worker can be provided using the present invention carries out fair deal, and employer obtains desired solution
Scheme, worker therefrom obtains paid service.
The content of the invention
In order to overcome the shortcoming and deficiency that prior art is present, the present invention provides a kind of mass-rent system based on block chain technology
System and its building method, block link layer platform is write by processes such as the issues, reception, assessment of task in the form of intelligent contract
In, employer needs not move through believable third party intermediary with worker can be automatically performed transaction, and the number of block link layer
According to need not rely on central database, so that in the absence of Single Point of Faliure problem, and possess can not tamper and trackability for data.
In order to solve the above technical problems, the present invention provides following technical scheme：A kind of mass-rent system based on block chain technology
System, including application layer, block link layer and the data storage layer being sequentially connected, the block link layer include some interconnections
Block, the block includes intelligent contract template；The application layer is according to the content of intelligent contract template, for editing and typing
Employer and worker's information；The intelligent contract template is reached for user profile registration, user task mass-rent condition, task is many
Inclusion fruit collects and creates and change intelligent contract；The data storage layer is used for the detailed of the storing former data message of the task
Description information and task result upload information；The cryptographic Hash of the former data message is preserved by the block link layer, really
Protect the integrality and non-trackability of data；The block link layer belongs to the decentralization platform not controlled by third party, uses
Common recognition mechanism based on publicly-owned chain model.
Further, the intelligent contract template include user's registration contract, user collect contract, task collect contract with
And task receives contract；Wherein
The user's registration contract includes：Individual subscriber essential information, user collect address information and the user of contract
Type information；
The user collects contract and included：Prestige angle value, task summary information and task list, wherein, the prestige
Angle value is given to the task of completion by employer and evaluated, and the task summary information submits automatic after completing for task according to worker
Calculate；
The task collects contract and included：Task address information, status information and owner's information；The task collects
Task fresh information and the task that information is issued with employer receive the change of the content information of contract, and are automatically performed more
Newly；
The task, which receives contract, to be used to complete the mutual requirement between employer and worker, including：The lock of task commission
Fixed and distribution, task completion time restriction, task submission, the evaluation of task performance, the third party's assessment mutually trusted；Described
Business commission is locked by the third-party platform of the block link layer, until deadline of task is just unlocked；In the task
In deadline restriction, if worker submits task result and obtains the approval of employer, task commission is turned automatically by contract
Enter worker's account, employer gives worker certain credit worthiness evaluation；If not carried in task completion time restriction
Hand over task result to task's memory pool, then commission goes back to employer's account automatically, while the work completeness of employer appraisal person
And credit worthiness；If there is both sides' disagreement situation, then the third-party platform appraisal completeness of the block link layer is entrusted.
Further, the data storage layer encapsulates some block chain task interfaces, and the data storage layer passes through block
Chain task interface is connected with the block link layer.
Further, the selection of the block link layer is to be based on existing third party's block platform chain, according to third party area
The handling capacity of block platform chain, memory capacity, number of nodes and whether support intelligent contract to be estimated, choose handling capacity it is big,
Number of nodes is up to certain scale and supports the complete intelligent contract of figure spirit as third party's block platform chain of block link layer.
Another object of the present invention is to provide a kind of building method of the mass-rent system based on block chain technology, including following steps
Suddenly：
S1, first employer and worker need to complete the registration of personal information in application layer based on intelligent contract, and application layer will
Intelligent contract after compiling is sent to block link layer, and each node of block link layer confirms to intelligent contract information, confirms to complete
Information can be registered customers as afterwards to preserve into block platform chain；
S2, employer are according to the intelligent contract release task message of block link layer, and mission bit stream content is including arranging during completion
Between, complete reward and complete require information, worker application layer by task management contract carry out mission bit stream retrieval
And check；
S3, worker combine the mission bit stream that demands of individuals receive employer, submit the preliminary solution of task；Employer from
Optimal case is filtered out in the tentative programme of numerous workers, and intelligent contract template is based on corresponding worker and signs association
View；
S4, worker are in processing task process, timing release tasks state, employer's query task in block link layer
Current state information；
After S5, task are disposed, employer and worker complete commission distribution and task performance according to intelligent contract
The processing of evaluation, data storage layer preserves the task result information that worker uploads, and employer obtains finally from data storage layer
Task result.
Further, the block link layer platform of the step S1 is isolated with data storage layer, and task summary data is protected
There is block link layer platform, task summary data includes the cryptographic Hash of former data message, and remaining detailed data is stored in data and deposited
Reservoir.
Further, the task status of the step S4 include it is to be uploaded, do not receive, received, assesses in, cancellation and
Complete, the operator that the change of the task status only has task can just operate on it；The status display of task, on treating
Pass and can be received towards all working person during non-reception state, in having received, having assessed, cancel and pin during state during completion
Worker, employer's operation to having received task.
Further, the personal information of the employer of the step S1 and worker, are added using IBE public key encryption algorithms
It is close；The task Private Parts data refer to the task result of digital form expression, using IBE public key encryption algorithms to being added
It is close；After the worker that employer's screening can submit a tender, just task Private Parts is encrypted with worker's public key, assigned work person's profit
Exposition can be just carried out with its private key to check.
After adopting the above technical scheme, the present invention at least has the advantages that：
(1) by present system, without providing a certain proportion of bonus again as commission, it is only necessary to provide some execution
The transaction fee of intelligent contract, effectively reduces the transaction cost of employer and worker；
(2) in the present invention, employer is automatically performed the issue, reception, assessment of task with worker by intelligent contract, without
Go-between participates in, and reduces middle complicated handling process, the operating efficiency that effectively lifting task is completed；
(3) in the present invention, employer and the personal log-on message of worker, the details of release tasks, task result are whole
It is stored in by cipher mode in cloud platform, it is to avoid the problem of individual privacy data need to be revealed by third-party platform；
(4) employer need not rely on third-party platform to carry out task result assessment with worker, but selection both sides are credible
Any user carry out task assessment, the fairness of enhanced task mass-rent.
Brief description of the drawings
Fig. 1 is a kind of hierarchy figure of the mass-rent system based on block chain technology of the present invention；
Fig. 2 is a kind of intelligent Contract Model of the mass-rent system constructing based on block chain technology of the present invention；
Fig. 3 is renewal task status flow in a kind of building method of the mass-rent system based on block chain technology of the present invention
Figure；
Fig. 4 is the signal of task state machine in a kind of building method of the mass-rent system based on block chain technology of the present invention
Figure；
Fig. 5 turns for a kind of system task state model of building method of the mass-rent system based on block chain technology of the present invention
Change schematic diagram.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine, the application is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Mass-rent system Construction scheme of the invention based on block chain technology, specifically includes following steps：
(1) mass-rent System data management and Data sharing framework based on block chain technology.
Block link layer is isolated with data storage layer, the summary info of task is placed on block link layer, detailed system
Data storage layer is saved in by external interface, the present invention is using application layer and block link layer as logical layer, and the system is intelligently closed
About operate in logical layer, system frame level frame figure is as shown in Figure 1.
● application layer：Belong to the superiors, mainly there are two purposes：Completed for employer and worker based on intelligent contract
Task mass-rent and contract compilation run.The present invention four kinds of general transaction contract templates of design:User's registration contract, user converge
Total contract, task collect contract and task receives contract, using intelligent contract template, and employer and worker are without understanding intelligence
Contract code, it is only necessary to which the configuration file of platform offer is provided, it becomes possible to rapidly carry out identity registration and carry out processing task
Flow.The field definition and corresponding relation of each template are as shown in Fig. 2 user collects contract all may be used in four kinds of transaction contract templates
To be managed by user's registration contract, user, which collects employer and worker in contract, in addition can reach task reception conjunction
About, last each corresponding mission bit stream of task reception contract is stored in task and collected in contract.The present invention carries for user
Job enquiry function is supplied, employer can inquire the current running status of submission task, and worker searches according to Status Flag
To the mission bit stream for needing to complete, and submitted a tender according to mission requirements.
● block link layer：Belong to intermediate layer, any one can be chosen and support intelligence to close platform as block platform chain.Example
Such as using ether mill as block platform chain, the Distributed Application platform of a new generation can be set up and be issued in ether mill, support to pass through
The mode of programming writes intelligent contract.Contract of the application layer after compiling is sent to block link layer, miner's pairing by RPC interfaces
About validity is confirmed, is identified through, and writes block chain data Layer, and metadata information is written into block link layer, detailed data
The data storage layer of lower floor is written to, block link layer ensures all node institutes based on the common recognition mechanism that ether mill platform is provided
The uniformity of storage information.
● data storage layer：Data storage layer belongs to the bottom, by storing metadata in block link layer, detailed data
The mode that there is accumulation layer advantageously reduces read-write efficiency on size of data in block chain, lifting block chain.In the present invention,
Cloud platform storage mode (such as S3, IPFS, and Syndicate) and DHT storage sides are supported by the way of open interface
Formula, user need not trust the authenticity of the layer data, in the cryptographic Hash of the recorded all data of block link layer, can be in the layer
To check the integrality of data.
(2) the intelligent Contract Design of the mass-rent system based on block chain technology.
The registration contract (URC) of user includes following information：Individual subscriber essential information (it is alternative whether public identity
Information), user collect contract address information and user type information；User can be inquired by user's registration contract related
Task completeness situation, contract is published in block platform chain, and every other user can inquire about.Only registered URC
The user of contract can just carry out task issue, task reception work in systems.
User collects contract (USC) packet and contained：Prestige angle value, task summary information, task list, wherein prestige angle value
The task of completion is given by employer and evaluated, task summary information submits completing for task to calculate automatically by worker, once its
Task status is changed in his contract, then the task status information of corresponding address is automatically updated by contract address.
Task collects contract (TSC) packet and contained：The task address information of all announcements in block platform chain, state letter
Breath, owner's information, task summary information are automatically performed renewal as employer's release tasks, task receive treaty content.
Task receives contract (RWRC) and mainly completes the mutual requirement that employer decides through consultation task completion with worker, including：Appoint
The locking of business commission and distribution (Deposit), task completion time restriction, task submission, the evaluation of task performance, mutually trust
Third party assesses.Employer's commission is locked by block platform chain, until deadline of task is just unlocked.Arrange in RWRC
Within task completion time, if worker submits task result and obtains the approval of employer, commission is turned automatically by contract
Enter worker's account, employer gives worker certain credit worthiness evaluation, if without submission task result within the deadline
To task's memory pool, then commission goes back to employer's account automatically, while employer is to worker's work completeness evaluation and credit worthiness.Such as
There is both sides' disagreement situation in fruit, then entrusts third party's group that both sides trust in intelligent contract platform to be commented to be operated completeness
Valency.
(3) design can user operation intelligent Contract Model.
By design four kinds intelligent contracts encapsulation external interfaces of the present invention, user is supported to carry out typing, inquiry, more to contract
Newly operate, and intelligent contract is formed into blocking encapsulation and be linked into block chain, transmitted by interface to block chain.User is provided to appoint
Be engaged in the operation interface such as typing and renewal, the interface is disposed without central server, and GUI code is increased income announcement, user can directly under
GUI code is carried, is opened using local browser, the berthing mechanism based on publicly-owned chain is designed in GUI code, mission bit stream passes through
Intelligent forms of contract writes block platform chain.As shown in figure 3, user is based on local IE, Google, red fox browser, operation is originally
Invention design static code is linked with block platform chain, and the status information of task is changed by intelligent contract.
As shown in figure 4, the present invention identifies the life cycle of task using six kinds of states：It is to be uploaded, do not receive, connect
Receive, assess in, complete, time-out.Task is in before not confirmed by block link layer platform nodes after being submitted by employer and treated
Biography state.Task is identified through, and this task is written into block chain and enters non-reception state, and worker searches for institute in platform
There is mission bit stream that is to be uploaded and not receiving, worker obtains the disposal right of the task by providing tentative programme.If
There is no worker's reception processing in the time of employer's agreement, then task time-out.Then, employer comform many workers scheme in select
Optimal case is taken, task is signed therewith and receives intelligent contract, task enters reception state.Worker is submitted after task result,
Employer is estimated to task.Assess and complete, task life cycle terminates, and task is ultimately at completion status.
As shown in figure 5, describing implementation procedure of the task status change process in block platform chain, task is carried by employer
Non- reception state is in after friendship；Worker finds the task and reached an agreement with employer, and task enters reception state；Worker exists
Completion task is submitted after result, and task eventually enters into completion status.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand, can carry out a variety of equivalent changes to these embodiments without departing from the principles and spirit of the present invention
Change, change, replace and modification, the scope of the present invention is limited by appended claims and its equivalency range.
Claims (8)
1. a kind of mass-rent system based on block chain technology, it is characterised in that including be sequentially connected application layer, block link layer with
And data storage layer, the block link layer includes the block of some interconnections, and the block includes intelligent contract template；It is described
Application layer is according to the content of intelligent contract template, for editing and typing employer and worker's information；The intelligent contract template
Reach for user profile registration, user task mass-rent condition, task mass-rent result collects and creates and change intelligent contract；
The detailed description information and task result that the data storage layer is used to store the task of former data message upload information；It is described
The cryptographic Hash of former data message is preserved by the block link layer, it is ensured that the integrality of data and non-trackability；The area
Block link layer belongs to the decentralization platform not controlled by third party, using the common recognition mechanism based on publicly-owned chain model.
2. a kind of mass-rent system based on block chain technology as claimed in claim 1, it is characterised in that the intelligent contract mould
Plate collects contract, task including user's registration contract, user and collects contract and task reception contract；Wherein
The user's registration contract includes：Individual subscriber essential information, user collect the address information and user type of contract
Information；
The user collects contract and included：Prestige angle value, task summary information and task list, wherein, the prestige angle value
The task of completion is given by employer and evaluated, the task summary information is counted automatically after submitting completing for task according to worker
Calculate；
The task collects contract and included：Task address information, status information and owner's information；The task summary information
The task fresh information issued with employer and the task receive the change of the content information of contract, and are automatically performed renewal；
The task, which receives contract, to be used to complete the mutual requirement between employer and worker, including：The locking of task commission with
Distribution, task completion time restriction, task submission, the evaluation of task performance, the third party's assessment mutually trusted；The task is hired
Gold is locked by the third-party platform of the block link layer, until deadline of task is just unlocked；Completed in the task
In time restriction, if worker submits task result and obtains the approval of employer, task commission is transferred to work automatically by contract
Author's account, employer gives worker certain credit worthiness evaluation；If appointing in the task completion time is limited without submission
Result of being engaged in is to task's memory pool, then commission goes back to employer's account automatically, while the work completeness and letter of employer appraisal person
Reputation degree；If there is both sides' disagreement situation, then the third-party platform appraisal completeness of the block link layer is entrusted.
3. a kind of mass-rent system based on block chain technology as claimed in claim 1, it is characterised in that the data storage layer
Some block chain task interfaces are encapsulated, the data storage layer is connected by block chain task interface with the block link layer.
4. a kind of mass-rent system based on block chain technology as claimed in claim 1, it is characterised in that the block link layer
Selection is to be based on existing third party's block platform chain, according to the handling capacity, memory capacity, nodes of third party's block platform chain
Amount and whether support intelligent contract to be estimated, choose that handling capacity is big, number of nodes up to certain scale and supports that figure spirit is complete
Standby intelligent contract as block link layer third party's block platform chain.
5. a kind of building method of mass-rent system based on block chain technology as any one of claim 1-4, it is special
Levy and be, comprise the steps：
S1, first employer and worker need to complete the registration of personal information in application layer based on intelligent contract, and application layer will be compiled
Intelligent contract afterwards is sent to block link layer, and each node of block link layer confirms to intelligent contract information, is confirmed after completing
Information can be registered customers as to preserve into block platform chain；
S2, employer are according to the intelligent contract release task message of block link layer, and mission bit stream content includes the agreement deadline, complete
Into rewarding and completing require information, worker carries out the retrieval of mission bit stream by task management contract in application layer and looked into
See；
S3, worker combine the mission bit stream that demands of individuals receive employer, submit the preliminary solution of task；Employer is from numerous
Optimal case is filtered out in the tentative programme of worker, and intelligent contract template is based on corresponding worker and is signed an agreement；
S4, worker processing task process in, timing release tasks state, employer in block link layer query task it is current
Status information；
After S5, task are disposed, employer and worker complete commission distribution and the evaluation of task performance according to intelligent contract
Processing, data storage layer preserves the task result information that worker uploads, and employer obtains final times from data storage layer
Business result.
6. a kind of building method of the mass-rent system based on block chain technology as claimed in claim 5, it is characterised in that described
Step S1 block link layer platform is isolated with data storage layer, and task summary data is stored in block link layer platform, task
Summary data includes the cryptographic Hash of former data message, and remaining detailed data is stored in data storage layer.
7. a kind of building method of the mass-rent system based on block chain technology as claimed in claim 5, it is characterised in that described
Step S4 task status include it is to be uploaded, do not receive, received, assesses in, cancel and completion, the change of the task status
The operator for more there was only task can just operate on it；The status display of task, in be uploaded and non-reception state towards
All working person can receive, in having received, having assessed, cancel and complete when state when just for the task that received work
Person, employer's operation.
8. a kind of building method of the mass-rent system based on block chain technology as claimed in claim 5, it is characterised in that described
Step S1 employer and the personal information of worker, are encrypted using IBE public key encryption algorithms；The task Private Parts number
According to the task result for referring to digital form expression, using IBE public key encryption algorithms to being encrypted；The work that employer's screening can submit a tender
After person, just task Private Parts is encrypted with worker's public key, assigned work person can just carry out exposition using its private key and look into
See.
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