CN109376172A - Data capture method and system based on block chain - Google Patents
Data capture method and system based on block chain Download PDFInfo
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- CN109376172A CN109376172A CN201811129654.9A CN201811129654A CN109376172A CN 109376172 A CN109376172 A CN 109376172A CN 201811129654 A CN201811129654 A CN 201811129654A CN 109376172 A CN109376172 A CN 109376172A
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q30/00—Commerce
- G06Q30/06—Buying, selling or leasing transactions
- G06Q30/0601—Electronic shopping [e-shopping]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
Abstract
The application provides a kind of data capture method and system based on block chain, wherein this method comprises: at least one node of terminal into block chain sends data acquisition request, it include user identifier and data attribute-bit in data acquisition request, so that each of at least one node node determines data information corresponding with user identifier and data attribute-bit；Terminal receives each of at least one node node, the data information of transmission, wherein includes that data attribute identifies in data information；Each of at least one data information data information is decrypted in terminal, the data information after obtaining each decryption；Terminal determines final data information according to the data information after each decryption.Due to will be placed on different nodes after the encryption of data information fragment, due to the imperfection of fragment data, and then it can guarantee the absolute safety of data, data information will not be sold and be revealed.
Description
Technical field
This application involves data processing technique more particularly to a kind of data capture methods and system based on block chain.
Background technique
Data management platform (Data Management Platform, abbreviation DMP) system is widely used in data processing
In field, such as it is used in the industries such as advertisement dispensing, electric business marketing.Metadata provider has oneself DMP system, can be with
Data are got from the DMP system of each metadata provider.
In the prior art, due to the competitive relation between metadata provider, in order to obtain the number in more DMP systems
According to the data of more DMP systems can be bought, and then get the data in more DMP systems.
However in the prior art, since data are reproducible, and then the data that will cause each DMP system are replicated, sell
Situation, and then business loss is caused to metadata provider；And the problem of be easy to causeing leaking data, and then cause in data
Privacy of user is leaked.
Summary of the invention
The application provides a kind of data capture method and system based on block chain, to solve the data of each DMP system
The case where being replicated, selling, and the problem of the problem of be easy to cause leaking data.
In a first aspect, the application provides a kind of data capture method based on block chain, comprising:
At least one node of terminal into block chain sends data acquisition request, includes using in the data acquisition request
Family mark and data attribute-bit, so that the determination of each of at least one described node node and the user identifier and institute
It states data attribute and identifies corresponding data information；
The terminal receives each of at least one node node, the data information of transmission, wherein the number
It is believed that including that the data attribute identifies in breath；
Each of at least one data information data information is decrypted in the terminal, obtains each solution
Data information after close；
The terminal determines final data information according to the data information after each decryption.
Further, the terminal determines final data information according to the data information after each decryption, comprising:
The terminal, which determines, to be belonged in the data information of same data attribute mark, the identical data information of the information content
Number；
The terminal determines the largest number of data informations, is final data information.
It further, further include node identification in the data information, the terminal is according to the data after each decryption
Information determines final data information, comprising:
The terminal is according to the corresponding relationship between preset node identification and weight, determining and each described node mark
Know corresponding weight；
The terminal determines weight corresponding with node identification described in each, is that each described node identification is corresponding
The weight of data information；
The terminal, which determines, to be belonged in the data information of same data attribute mark, the identical data information of the information content
Weight summation；
The terminal determines the maximum data information of weight summation, is final data information.
Further, in the terminal according to the data information after each decryption, after determining final data information,
Further include:
The terminal generates the benefits information of node identification corresponding with final data information；
The benefits information is sent to section corresponding to node identification corresponding with final data information by the terminal
Point, so that benefits information is sent to data providing device corresponding with final data information by the node.
Further, the method, further includes:
Each of at least one data providing device data providing device is by data information, and the storage of dispersion is described in
In each of at least one node node.
Further, each of at least one data providing device data providing device is by data information, dispersion
It stores in each of at least one node node, comprising:
Each of at least one data providing device data providing device is routed according to distributed hashtable DHT and is assisted
View successively determines the hashed value of each of at least one node node；
Each of at least one data providing device data providing device does not have according to the determination of the hashed value of present node
When thering is new node to be generated, determine data information memory into present node.
Further, the method, further includes:
The renewed treaty time-out time of each of at least one node node acquisition node；
Each of at least one node node is in the renewed treaty time-out time for determining node, in continuous n times both greater than
Preset time, it is determined that node is down status.
In a first aspect, the application provides a kind of data-acquisition system based on block chain, comprising: in terminal and block chain
At least one node；
Wherein, the terminal includes:
First sending module sends data acquisition request at least one node into block chain, and the data obtain
Taking includes user identifier and data attribute-bit in request, so that the determination of each of at least one described node node and institute
It states user identifier and the data attribute identifies corresponding data information；
Receiving module, for receiving each of at least one node node, the data information of transmission, wherein
It include that the data attribute identifies in the data information；
Deciphering module obtains every for each of at least one data information data information to be decrypted
Data information after one decryption；
Determining module, for determining final data information according to the data information after each decryption.
Further, the determining module, is specifically used for:
It determines and belongs in the data information of same data attribute mark, the identical data information number of the information content；
It determines the largest number of data informations, is final data information.
Further, the determining module, is specifically used for:
According to the corresponding relationship between preset node identification and weight, determination is corresponding with node identification described in each
Weight；
Corresponding with node identification described in each weight is determined, for the corresponding data information of each described node identification
Weight；
It determines and belongs in the data information of same data attribute mark, the weight of the identical data information of the information content is total
With；
It determines the maximum data information of weight summation, is final data information.
Further, the terminal, further includes:
Generation module, for, according to the data information after each decryption, determining final data in the determining module
After information, the benefits information of node identification corresponding with final data information is generated；
Second sending module, for being sent to node identification corresponding with final data information for the benefits information
Corresponding node, so that benefits information is sent to data providing device corresponding with final data information by the node.
Further, the system, further includes: at least one data providing device；
Each of at least one data providing device data providing device is used for data information, the storage of dispersion
Into each of at least one node node.
Further, each of at least one data providing device data providing device is specifically used for:
According to distributed hashtable DHT Routing Protocol, each of at least one node node is successively determined
Hashed value；
When determining that not new node is generated according to the hashed value of present node, determine data information memory to currently
In node.
Further, each of at least one node node is specifically used for:
Obtain the renewed treaty time-out time of node；
In the renewed treaty time-out time for determining node, preset time is both greater than in continuous n times, it is determined that node is lower threadiness
State.
Data capture method and system provided by the present application based on block chain, by terminal into block chain at least one
A node sends data acquisition request, includes user identifier and data attribute-bit in data acquisition request, so that at least one
Each of node node determines data information corresponding with user identifier and data attribute-bit；Terminal receives at least one
Each of node node, the data information of transmission, wherein include that data attribute identifies in data information；Terminal is at least
Each of one data information data information is decrypted, the data information after obtaining each decryption；Terminal is according to every
Data information after one decryption, determines final data information.Since different sections will be placed on after the encryption of data information fragment
On point, due to the imperfection of fragment data, and then can guarantee the absolute safety of data, data information will not be sold and
Leakage；By each node storing data information of block chain, data supplier can be allowed in the premise of not leak data
Under build together DMP, be effectively connected to data silo, while improving the efficiency that data utilize；Also, terminal can only issue one
Secondary acquisition request, so that it may obtain data information from each node, reduce data query order and time, effectively reduce
The delay of data query；By block chain technology, interface service and data separating can be made, different data are using same
Docking standard reduces docking cost.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Fig. 1 is a kind of flow diagram of the data capture method based on block chain provided by the embodiments of the present application；
Fig. 2 is the storage of the data information in a kind of data capture method based on block chain provided by the embodiments of the present application
The schematic diagram of structure；
Fig. 3 is the flow diagram of another data capture method based on block chain provided by the embodiments of the present application；
Fig. 4 is a kind of structural schematic diagram of the data-acquisition system based on block chain provided by the embodiments of the present application；
Fig. 5 is the structural schematic diagram of another data-acquisition system based on block chain provided by the embodiments of the present application；
Fig. 6 is a kind of structural schematic diagram of terminal provided by the embodiments of the present application；
Fig. 7 is a kind of structural schematic diagram of data providing device provided by the embodiments of the present application；
Fig. 8 is a kind of structural schematic diagram of node provided by the embodiments of the present application.
Through the above attached drawings, it has been shown that the specific embodiment of the application will be hereinafter described in more detail.These attached drawings
It is not intended to limit the range of the application design in any manner with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the application.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
First to this application involves noun explain:
Data management platform (Data Management Platform, abbreviation DMP): data management platform, definition compared with
To be wide in range, this patent refers to providing the data warehouse of certain major key retrieval services.
A kind of block chain: data account book (database) technology that can not be distorted realized by encryption technology.
Distributed hashtable (Distributed Hash Table, abbreviation DHT): decentralization for storing data
NoSQL data bank network, the node in network can pass through fixed routing algorithm and retrieve data.
Table schema: the metamessage of data base organization's data.
The specific application scenarios of the application are as follows: data management platform (Data Management Platform, abbreviation DMP)
System is widely used in data processing field, such as is used in the industries such as advertisement dispensing, electric business marketing.Metadata provider
With the DMP system of oneself, data can be got from the DMP system of each metadata provider.Terminal can pass through definition
Good major key is retrieved the corresponding field of major key in DMP system, is then returned the result by rule or algorithm；For example, establishing
A set of NoSQL database returns to corresponding search result according to customized table schema.
In the prior art, due to the competitive relation between metadata provider, in order to obtain the number in more DMP systems
According to the data of more DMP systems can be bought, and then get the data in more DMP systems.This multi-party acquisition data
Mode, need to be docked with multiple DMP systems, and then need to be docked with multiple DMP systems using each interface.
However in the prior art, since data are reproducible, and then the data that will cause each DMP system are replicated, sell
Situation, and then business loss is caused to metadata provider；And the problem of be easy to causeing leaking data, and then cause in data
Privacy of user is leaked；Also, the cost of the delay and data redundancy repeatedly inquired causes extremely low using data efficiency.Also,
The agreement used for each DMP system is different, needs to cause higher cost using different interface and DMP system docking.
For example, in ad placement services, the mark of available user terminal to be put, then according to user
The mark of terminal, the searching user's information from DMP inquire user information from each DMP of docking respectively；And then according to
Family information determines whether the demand for meeting advertisement, to decide whether to launch advertisement.However aforesaid way, need to inquire multiple DMP,
The delay in turn resulting in inquiry data is got higher, and is difficult to meet the 100ms requirement of advertisement dispensing；Also, it inquires multiple DMP to obtain later
To result may be redundancy, because different DMP return the result identical on this, and then be equivalent to and waste inquiry and processing time
Number；The agreement of different DMP is different, and then needs frequently modification and exploitation mating interface, so that docking inefficient.
Data capture method and system provided by the present application based on block chain, it is intended to solve the technology as above of the prior art
Problem.
How the technical solution of the application and the technical solution of the application are solved with specifically embodiment below above-mentioned
Technical problem is described in detail.These specific embodiments can be combined with each other below, for the same or similar concept
Or process may repeat no more in certain embodiments.Below in conjunction with attached drawing, embodiments herein is described.
Fig. 1 is a kind of flow diagram of the data capture method based on block chain provided by the embodiments of the present application.Such as Fig. 1
It is shown, this method comprises:
At least one node of step 101, terminal into block chain sends data acquisition request, wraps in data acquisition request
User identifier and data attribute-bit are included, so that the determination of each of at least one node node and user identifier and data category
Property the corresponding data information of mark.
In the present embodiment, specifically, being provided with multiple nodes in block chain, data letter is stored in each node
Breath.
When needing to obtain data, at least one node of terminal into block chain sends data acquisition and asks terminal
It asks, includes user identifier and data attribute-bit in data acquisition request.Each of at least one node node according to
Family mark and data attribute-bit, determine data information corresponding with user identifier and data attribute-bit.
For example, at least one node into block chain of terminal sends data acquisition request, in data acquisition request
Including user identifier, name and height, data acquisition request characterization need to obtain corresponding with user identifier user name and
Height.Each of at least one node node determines each data information of data corresponding with user identifier, then really
Make the name and height in data information.
Step 102, terminal receive each of at least one node node, the data information of transmission, wherein data letter
It include that data attribute identifies in breath.
In the present embodiment, specifically, each of at least one node node sends out respectively determining data information
Give terminal.
Each of at least one data information data information is decrypted in step 103, terminal, obtains each solution
Data information after close.
In the present embodiment, specifically, since the data information that node is sent is encryption, and then terminal is needed to node
The data information of transmission is decrypted, the data information after being decrypted.
Step 104, terminal determine final data information according to the data information after each decryption.
Optionally, step 104 includes following several embodiments:
The first embodiment of step 104: terminal, which determines, to be belonged in the data information of same data attribute mark, letter
Cease the identical data information number of content；Terminal determines the largest number of data informations, is final data information.
Second of embodiment of step 104: terminal is according to the corresponding relationship between preset node identification and weight, really
Fixed weight corresponding with each node identification；Terminal determines weight corresponding with each node identification, is each node
Identify the weight of corresponding data information；Terminal, which determines, to be belonged in the data information of same data attribute mark, the information content
The weight summation of identical data information；Terminal determines the maximum data information of weight summation, is final data information.
In the present embodiment, specifically, terminal determines final data information according to the data information after each decryption.
Specifically, terminal, which counts, belongs in the data information of same data attribute mark, and the information content is identical
Data information number；Then, terminal determines the largest number of data informations, is final data information.
For example, data attribute is identified as height, and terminal determines in the data information of height, the information content phase of height
The number of same data information；For example, determining the number that height be 166 centimetres of data amount check is 3, and height is 165 centimetres
It is 2 according to number, height is that 164 centimetres of data amount check is 1；And then terminal determines 166 centimetres of height, is the final of height
Data information.
Alternatively, further comprising node identification in the data information that each node is sent.Node identification is stored in terminal
Corresponding relationship between weight, and then terminal can determine weight corresponding with each node identification.Then terminal will be with
The corresponding weight of each node identification, the weight as data information transmitted by each node identification corresponding node；So
Afterwards, terminal, which calculates, belongs in the data information of same data attribute mark, and the weight of the identical data information of the information content is total
With；Finally, terminal is by the maximum data information of weight summation, as final data information.
For example, data attribute is identified as height, and node 1 has sent data information to terminal, includes in data information
Node identification 1；Node 2 has sent data information to terminal, includes node identification 2 in data information；Node 3 has sent to terminal
Data information includes node identification 3 in data information；Node 4 has sent data information to terminal, includes node in data information
Mark 4；Terminal can determine and the corresponding weight a of node identification 1, weight b corresponding with node identification 2, with node identification 3
Corresponding weight c, weight d corresponding with node identification 4；Terminal determines that the weight for the data information that egress 1 is sent is in turn
A, the data letter that the weight for the data information that the weight for the data information that node 2 is sent is b, node 3 is sent is c, node 4 is sent
The weight of breath is d；Terminal determines the data for the height that the information content of the data information for the height that node 1 is sent, node 2 are sent
The information content of information is all 166 centimetres, and terminal determines that the information content of the data information for the height that node 3 is sent, node 4 are sent out
The information content of the data information for the height sent all is 164 centimetres；In turn, terminal counts the power of 166 centimetres of data information
Value summation is a+b, and the weight summation for counting 164 centimetres of data information is c+d, wherein a+b is greater than c+d；Terminal can be true
Determining height is 166 centimetres, the final data information as height.
For example, Fig. 2 is the data information in a kind of data capture method based on block chain provided by the embodiments of the present application
Storage organization schematic diagram, as shown in Fig. 2, the data information that terminal is obtained from multiple nodes, can be carried out with the structure of Fig. 2
It stores, includes key (Key) value, the cryptographic Hash of user identifier, Value value and the information content connect in storage organization, wherein letter
Ceasing content is the data information under one or more data attribute marks, includes node identification, number in each data information
According to the information content and timestamp.For example, the data information under data attribute mark 1 has included data information 1,2 and of data information
Data information 3, wherein data information 1 includes node identification DP1, data information content v1 and timestamp ts1, data information 2
It include node identification DP2, data information content v2 and timestamp ts2, data information 3 includes node identification DP3, data letter
Cease content v3 and timestamp ts3；Data information under data attribute mark 2 has included data information 4, data information 5 and data
Information 6, wherein data information 4 includes node identification DP1, data information content v4 and timestamp ts4, and data information 5 includes
Node identification DP2, data information content v5 and timestamp ts5, data information 6 include node identification DP3, in data information
Hold v6 and timestamp ts6.
The present embodiment sends data acquisition request, data acquisition request by least one node of terminal into block chain
In include user identifier and data attribute-bit so that each of at least one node node is determining with user identifier sum number
According to the corresponding data information of attribute-bit；Terminal receives each of at least one node node, the data information of transmission,
In, it include that data attribute identifies in data information；Terminal solves each of at least one data information data information
Close, after obtaining each decryption data information；Terminal determines final data letter according to the data information after each decryption
Breath.Due to will be placed on different nodes after the encryption of data information fragment, due to the imperfection of fragment data, and then can protect
The absolute safety of data is demonstrate,proved, data information will not be sold and be revealed；It, can by each node storing data information of block chain
The DMP so that data supplier can build together under the premise of not leak data, is effectively connected to data silo, improves simultaneously
The efficiency that data utilize；Also, terminal can only issue an acquisition request, so that it may data letter is obtained from each node
Breath, reduces data query order and time, effectively reduces the delay of data query；By block chain technology, can make
Interface service and data separating are obtained, different data use the same docking standard, reduce docking cost.
Fig. 3 is the flow diagram of another data capture method based on block chain provided by the embodiments of the present application.Such as
Shown in Fig. 3, this method comprises:
At least one node of step 201, terminal into block chain sends data acquisition request, wraps in data acquisition request
User identifier and data attribute-bit are included, so that the determination of each of at least one node node and user identifier and data category
Property the corresponding data information of mark.
In the present embodiment, it specifically, this step may refer to the step 101 of Fig. 1, repeats no more.
Step 202, terminal receive each of at least one node node, the data information of transmission, wherein data letter
It include that data attribute identifies in breath.
In the present embodiment, it specifically, this step may refer to the step 102 of Fig. 1, repeats no more.
Each of at least one data information data information is decrypted in step 203, terminal, obtains each solution
Data information after close.
In the present embodiment, it specifically, this step may refer to the step 103 of Fig. 1, repeats no more.
Step 204, terminal determine final data information according to the data information after each decryption.
In the present embodiment, it specifically, this step may refer to the step 104 of Fig. 1, repeats no more.
Step 205, terminal generate the benefits information of node identification corresponding with final data information.
In the present embodiment, specifically, after step 204, can be done according to the contribution margin of each data providing
Distribution of interests does distribution of interests according to the weight of each data providing device and contribution degree；And contribution margin is written
Intelligent contract, intelligent contract can automatically transfer accounts to data providing device.Specifically, terminal can be according to preset interests
Allocation table generates the benefits information of node identification corresponding with final data information, wherein distribution of interests table characterizes data
Corresponding relationship between information and benefits information.
Benefits information is sent to section corresponding to node identification corresponding with final data information by step 206, terminal
Point, so that benefits information is sent to data providing device corresponding with final data information by the node.
In the present embodiment, specifically, terminal is by benefits information, it is sent to node mark corresponding with final data information
Know corresponding node；Then, due to include in final data information data providing device mark, and then the node can
To determine data providing device corresponding with the mark of data providing device, then benefits information is sent to by the node is provided
The data providing device of final data information.
Each of step 207, at least one data providing device data providing device deposits data information, dispersion
It stores up in each of at least one node node.
Wherein, step 207 specifically includes: each of at least one data providing device data providing device according to
DHT Routing Protocol successively determines the hashed value of each of at least one node node；In at least one data providing device
Each data providing device when determining that not new node is generated according to the hashed value of present node, data are believed in determination
Breath storage is into present node.
In the present embodiment, specifically, the execution order of step 207 without limitation.In each data providing device to node
When middle storage data information, need to guarantee as far as possible that data information carries out dispersion storage, thus each data providing device
By data information, the storage of dispersion is into each of at least one node node.
Specifically, each data providing device successively determines every at least one node according to DHT Routing Protocol
The hashed value of one node, hashed value are obtained after being split a preset data range according to node number；Into
And each data providing device can determine whether block according to hashed value when storing data information into node
Whether new node is provided in chain；Each data providing device determines in block chain in the hashed value according to present node
New node is not generated, so that it may which data information is stored in present node.
For example, a numberical range is carried out the impartial of trisection to divide, by the data area 1 after segmentation as section
The hashed value of point 1 regard the data area 3 after segmentation as hashed value of the data area 2 as node 2 after segmentation as node 3
Hashed value；Data providing device into node 1 store data information when, can be according to node 1 hashed value determination
New node whether is provided in no block chain；If the hashed value of node 1 is changed, it is determined that generated in block chain new
Node, then, data providing device can inquire node 2, continue to judge whether the hashed value of node 2 is become at this time
Change；If the hashed value of node 2 is there is no variation, data providing device, which determines, does not generate new node in block chain, number
Data information can be stored in node 2 according to equipment is provided.
Also, data providing device is interacted in the form of client with the node in block chain.Data providing device
After adding salt to hash key (Key) value of data information, the hashed value of Key is obtained, and by each field value of the hashed value of Key
Encryption；Then, data providing device requests the method for routing of intelligent contract, and data information is stored in node, wherein routing
Method is the value according to DHT agreement calculate node.Then, data providing device can will be dissipated according to preset ratio, such as 5%
Train value is written in intelligent contract.And the node needs for being stored with data information regularly pass through after storing data information
The mode of heartbeat answers the hash problem of intelligent contract；The hashed value of the random inquiry Key of intelligent contract meeting, it is desirable that corresponding
The hashed value of node return recording.
The renewed treaty time-out time of each of step 208, at least one node node acquisition node；At least one node
Each of node in the renewed treaty time-out time for determining node, preset time is both greater than in continuous n times, it is determined that node is
Down status.
In the present embodiment, specifically, the execution order of step 208 without limitation.
When there is new node online in block chain, the public key that new node binds oneself, the network association externally serviced
View (Internet Protocol, abbreviation IP), the state for whether preparing service etc. are written in intelligent contract, and new section
A part of token (token) can be used as guarantee fund by point.When node is normally offline, node can from line flag its in intelligence
Service state on contract.Each node needs regularly to renew a contract with intelligent contract, wherein maximum renewed treaty time-out time is t；
Node obtains the renewed treaty time-out time of itself, and node is both greater than default in continuous n times in the renewed treaty time-out time for determining itself
Time, it is determined that the node is down status；Also, intelligent contract can determine which node is down status, then deduct
The guarantee fund of the node of down status.
According to above procedure, the acquisition of entire data information and storing process have been divided into operation layer, DHT network layer, storage
Layer and block link layer.Wherein, the structure of data information is substantially Key_value (KV) form, specific Key=in operation layer
>document；Wherein, Key is generally used plus salt hash desensitizes, and several data providing devices of shared data share " salt ",
To guarantee that identical Key can condense together in distributed data base；Document support can nested structure, word therein
Section and value are encryption, and code key is shared for all data providing devices.In son DHT network layer, the routing of all nodes is believed
Breath needs to be written on block chain, safeguards a global routing table.In accumulation layer, the storage of data information may be implemented, save
Data information in point should dispersion as far as possible, the data information in each node can not concentrate on the same data offer and set
Standby, i.e., same data providing device cannot all be put into the data of oneself in one node, and then guarantee encryption fragment data
Safety.Wherein, the NoSQL numbers such as MongoDB database, ElasticSearch database, Hbase database can be used in node
According to library.In block link layer, processing can also can be sampled to data information with the routing iinformation of management node.Wherein, right
Data information is sampled processing primarily to proving whether really store data in node, and give certain rewards and punishments machine
System, guarantees the service quality of node.
The present embodiment sends data acquisition request, data acquisition request by least one node of terminal into block chain
In include user identifier and data attribute-bit so that each of at least one node node is determining with user identifier sum number
According to the corresponding data information of attribute-bit；Terminal receives each of at least one node node, the data information of transmission,
In, it include that data attribute identifies in data information；Terminal solves each of at least one data information data information
Close, after obtaining each decryption data information；Terminal determines final data letter according to the data information after each decryption
Breath.Due to will be placed on different nodes after the encryption of data information fragment, due to the imperfection of fragment data, and then can protect
The absolute safety of data is demonstrate,proved, data information will not be sold and be revealed；It, can by each node storing data information of block chain
The DMP so that data supplier can build together under the premise of not leak data, is effectively connected to data silo, improves simultaneously
The efficiency that data utilize；Also, terminal can only issue an acquisition request, so that it may data letter is obtained from each node
Breath, reduces data query order and time, effectively reduces the delay of data query；By block chain technology, can make
Interface service and data separating are obtained, different data use the same docking standard, reduce docking cost.Also, terminal passes through
The mode aggregated data of salt hash Key is added then to introduce voting mechanism, the final data information of decision；And it can basis
The weight and contribution degree of data providing device carry out distribution of interests to data providing device.
Fig. 4 is a kind of structural schematic diagram of the data-acquisition system based on block chain provided by the embodiments of the present application, such as Fig. 4
Shown, the system of the present embodiment may include: at least one node 12 in terminal 11 and block chain；
Wherein, terminal 11 includes:
First sending module 111 sends data acquisition request at least one node 12 into block chain, and data obtain
Taking includes user identifier and data attribute-bit in request, so that each of at least one node 12 node 12 is determined and used
Family identifies data information corresponding with data attribute-bit；
Receiving module 112, for receiving each of at least one node 12 node 12, the data information of transmission,
In, it include that data attribute identifies in data information；
Deciphering module 113 obtains each for each of at least one data information data information to be decrypted
Data information after a decryption；
Determining module 114, for determining final data information according to the data information after each decryption.
The data-acquisition system based on block chain of the present embodiment can be performed provided by the embodiments of the present application a kind of based on area
The data capture method of block chain, implementing principle and technical effect are similar, and details are not described herein again.
The present embodiment sends data acquisition request, data acquisition request by least one node of terminal into block chain
In include user identifier and data attribute-bit so that each of at least one node node is determining with user identifier sum number
According to the corresponding data information of attribute-bit；Terminal receives each of at least one node node, the data information of transmission,
In, it include that data attribute identifies in data information；Terminal solves each of at least one data information data information
Close, after obtaining each decryption data information；Terminal determines final data letter according to the data information after each decryption
Breath.Due to will be placed on different nodes after the encryption of data information fragment, due to the imperfection of fragment data, and then can protect
The absolute safety of data is demonstrate,proved, data information will not be sold and be revealed；It, can by each node storing data information of block chain
The DMP so that data supplier can build together under the premise of not leak data, is effectively connected to data silo, improves simultaneously
The efficiency that data utilize；Also, terminal can only issue an acquisition request, so that it may data letter is obtained from each node
Breath, reduces data query order and time, effectively reduces the delay of data query；By block chain technology, can make
Interface service and data separating are obtained, different data use the same docking standard, reduce docking cost.
Fig. 5 is the structural schematic diagram of another data-acquisition system based on block chain provided by the embodiments of the present application,
On the basis of embodiment illustrated in fig. 4, as shown in figure 5, determining module 114 is specifically used in the system of the present embodiment: determination is returned
Belong in the data information of same data attribute mark, the identical data information number of the information content；Determine the largest number of numbers
It is believed that breath, is final data information.
Alternatively, determining module 114, is specifically used for: according to the corresponding relationship between preset node identification and weight, determining
Weight corresponding with each node identification；It determines weight corresponding with each node identification, is each node identification pair
The weight for the data information answered；It determines and belongs in the data information of same data attribute mark, the identical data of the information content
The weight summation of information；It determines the maximum data information of weight summation, is final data information.
Terminal 11, further includes:
Generation module 115, for, according to the data information after each decryption, determining final number in determining module 114
It is believed that generating the benefits information of node identification corresponding with final data information after breath.
Second sending module 116, for being sent to node identification institute corresponding with final data information for benefits information
Corresponding node 12, so that benefits information is sent to data providing device corresponding with final data information by the node 12.
The present embodiment provides systems, further includes: at least one data providing device 13；
Each of at least one data providing device 13 data providing device 13 is used for data information, dispersion
It stores in each of at least one node 12 node 12.
Each of at least one data providing device 13 data providing device 13, is specifically used for: being routed and is assisted according to DHT
View, successively determines the hashed value of each of at least one node 12 node；Do not had according to the determination of the hashed value of present node 12
When thering is new node 12 to be generated, determine data information memory into present node 12.
Each of at least one node 12 node 12, is specifically used for: obtaining the renewed treaty time-out time of node；In determination
The renewed treaty time-out time of node 12 is both greater than preset time in continuous n times, it is determined that node 12 is down status.
The data-acquisition system based on block chain of the present embodiment can be performed another kind provided by the embodiments of the present application and be based on
The data capture method of block chain, implementing principle and technical effect are similar, and details are not described herein again.
The present embodiment sends data acquisition request, data acquisition request by least one node of terminal into block chain
In include user identifier and data attribute-bit so that each of at least one node node is determining with user identifier sum number
According to the corresponding data information of attribute-bit；Terminal receives each of at least one node node, the data information of transmission,
In, it include that data attribute identifies in data information；Terminal solves each of at least one data information data information
Close, after obtaining each decryption data information；Terminal determines final data letter according to the data information after each decryption
Breath.Due to will be placed on different nodes after the encryption of data information fragment, due to the imperfection of fragment data, and then can protect
The absolute safety of data is demonstrate,proved, data information will not be sold and be revealed；It, can by each node storing data information of block chain
The DMP so that data supplier can build together under the premise of not leak data, is effectively connected to data silo, improves simultaneously
The efficiency that data utilize；Also, terminal can only issue an acquisition request, so that it may data letter is obtained from each node
Breath, reduces data query order and time, effectively reduces the delay of data query；By block chain technology, can make
Interface service and data separating are obtained, different data use the same docking standard, reduce docking cost.Also, terminal passes through
The mode aggregated data of salt hash Key is added then to introduce voting mechanism, the final data information of decision；And it can basis
The weight and contribution degree of data providing device carry out distribution of interests to data providing device.
Fig. 6 is a kind of structural schematic diagram of terminal provided by the embodiments of the present application, as shown in fig. 6, the embodiment of the present application mentions
A kind of terminal has been supplied, can be used for executing terminal action or step in Fig. 1 or embodiment illustrated in fig. 3, specifically include: processor
2701, memory 2702 and communication interface 2703.
Memory 2702, for storing computer program.
Processor 2701, it is real shown in Fig. 1 or Fig. 3 to realize for executing the computer program stored in memory 2702
The movement for applying terminal in example, repeats no more.
Optionally, terminal can also include bus 2704.Wherein, processor 2701, memory 2702 and communication interface
2703 can be connected with each other by bus 2704；Bus 2704 can be Peripheral Component Interconnect standard (Peripheral
Component Interconnect, abbreviation PCI) bus or expanding the industrial standard structure (Extended Industry
Standard Architecture, abbreviation EISA) bus etc..Above-mentioned bus 2704 can be divided into address bus, data/address bus and
Control bus etc..Only to be indicated with a thick line in Fig. 5, it is not intended that an only bus or a seed type convenient for indicating
Bus.
In the embodiment of the present application, it can mutually be referred to and learnt between the various embodiments described above, same or similar step
And noun no longer repeats one by one.
Alternatively, some or all of above modules can also be embedded in certain of the terminal by way of integrated circuit
It is realized on one chip.And they can be implemented separately, and also can integrate together.I.e. the above module can be configured
At the one or more integrated circuits for implementing above method, such as: one or more specific integrated circuit (Application
Specific Integrated Circuit, abbreviation ASIC), or, one or more microprocessors (Digital Singnal
Processor, abbreviation DSP), or, one or more field programmable gate array (Field Programmable Gate
Array, abbreviation FPGA) etc..
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 2702 of instruction, above-metioned instruction can be executed by the processor 2701 of above-mentioned terminal to complete the above method.Example
Such as, non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and
Optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is executed by the processor of terminal
When, it enables the terminal to execute the above-mentioned data capture method based on block chain.
Fig. 7 is a kind of structural schematic diagram of data providing device provided by the embodiments of the present application, as shown in fig. 7, the application
Embodiment provides a kind of data providing device, and it is dynamic to can be used for executing data providing device in Fig. 1 or embodiment illustrated in fig. 3
Work or step, specifically include: processor 2801, memory 2802 and communication interface 2803.
Memory 2802, for storing computer program.
Processor 2801, it is real shown in Fig. 1 or Fig. 3 to realize for executing the computer program stored in memory 2802
The movement for applying data providing device in example, repeats no more.
Optionally, data providing device can also include bus 2804.Wherein, processor 2801, memory 2802 and
Communication interface 2803 can be connected with each other by bus 2804；Bus 2804 can be pci bus or eisa bus etc..It is above-mentioned total
Line 2804 can be divided into address bus, data/address bus and control bus etc..Only to be indicated with a thick line in Fig. 5 convenient for indicating,
It is not intended that only a bus or a type of bus.
In the embodiment of the present application, it can mutually be referred to and learnt between the various embodiments described above, same or similar step
And noun no longer repeats one by one.
Alternatively, some or all of above modules can also be embedded in data offer by way of integrated circuit
It is realized on some chip of equipment.And they can be implemented separately, and also can integrate together.That is the above module can
To be configured to implement one or more integrated circuits of above method, such as: one or more ASIC, or, one or more
DSP, or, one or more FPGA etc..
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 2802 of instruction, above-metioned instruction can be executed above-mentioned to complete by the processor 2801 of above-mentioned data providing device
Method.For example, non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, magnetic
Band, floppy disk and optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is by data providing device
When managing device execution, so that data providing device is able to carry out the above-mentioned data capture method based on block chain.
Fig. 8 is a kind of structural schematic diagram of node provided by the embodiments of the present application, and if Fig. 8 shows, the embodiment of the present application is provided
A kind of node can be used for executing Fig. 1 or the movement of embodiment illustrated in fig. 3 interior joint or step, specifically include: processor
2901, memory 2902 and communication interface 2903.
Memory 2902, for storing computer program.
Processor 2901, it is real shown in Fig. 1 or Fig. 3 to realize for executing the computer program stored in memory 2902
The movement for applying an interior joint, repeats no more.
Optionally, node can also include bus 2904.Wherein, processor 2901, memory 2902 and communication interface
2903 can be connected with each other by bus 2904；Bus 2904 can be pci bus or eisa bus etc..Above-mentioned bus 2904 can
To be divided into address bus, data/address bus and control bus etc..Only to be indicated with a thick line in Fig. 5, but not table convenient for indicating
Show only a bus or a type of bus.
In the embodiment of the present application, it can mutually be referred to and learnt between the various embodiments described above, same or similar step
And noun no longer repeats one by one.
Alternatively, some or all of above modules can also be embedded in certain of the node by way of integrated circuit
It is realized on one chip.And they can be implemented separately, and also can integrate together.I.e. the above module can be configured
At the one or more integrated circuits for implementing above method, such as: one or more ASIC, or, one or more DSP, or, one
A or multiple FPGA etc..
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 2902 of instruction, above-metioned instruction can be executed by the processor 2901 of above-mentioned node to complete the above method.Example
Such as, non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk and
Optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is executed by the processor of node
When, it enables a node to execute the above-mentioned data capture method based on block chain.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or any combination thereof real
It is existing.When implemented in software, it can entirely or partly realize in the form of a computer program product.Computer program product
Including one or more computer instructions.When loading on computers and executing computer program instructions, all or part of real estate
Raw process or function according to the embodiment of the present application.Computer can be general purpose computer, special purpose computer, computer network,
Or other programmable devices.Computer instruction may be stored in a computer readable storage medium, or from a computer
Readable storage medium storing program for executing to another computer readable storage medium transmit, for example, computer instruction can from a web-site,
Computer, terminal or data center are by wired (for example, coaxial cable, optical fiber, Digital Subscriber Line (digital
Subscriber line, DSL)) or wireless (for example, infrared, wireless, microwave etc.) mode to another web-site, calculate
Machine, terminal or data center are transmitted.Computer readable storage medium can be any available Jie that computer can access
Matter either includes the data storage devices such as one or more usable mediums integrated terminal, data center.Usable medium can be with
It is magnetic medium, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium are (for example, solid-state is hard
Disk (solid state disk, SSD)) etc..
Those skilled in the art it will be appreciated that in said one or multiple examples, retouched by the embodiment of the present application
The function of stating can be realized with hardware, software, firmware or their any combination.It when implemented in software, can be by this
A little functions storages in computer-readable medium or as on computer-readable medium one or more instructions or code into
Row transmission.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from one
Any medium of the place to another place transmission computer program.Storage medium can be general or specialized computer and can deposit
Any usable medium taken.
It should be understood that the application is not limited to the precise structure that has been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by appended claims
System.
Claims (14)
1. a kind of data capture method based on block chain characterized by comprising
At least one node of terminal into block chain sends data acquisition request, includes that user marks in the data acquisition request
Knowledge and data attribute-bit, so that the determination of each of at least one described node node and the user identifier and the number
According to the corresponding data information of attribute-bit；
The terminal receives each of at least one node node, the data information of transmission, wherein the data letter
It include that the data attribute identifies in breath；
Each of at least one data information data information is decrypted in the terminal, after obtaining each decryption
Data information；
The terminal determines final data information according to the data information after each decryption.
2. the method according to claim 1, wherein the terminal according to each decryption after data information,
Determine final data information, comprising:
The terminal, which determines, to be belonged in the data information of same data attribute mark, the identical data information of the information content
Number；
The terminal determines the largest number of data informations, is final data information.
3. the method according to claim 1, wherein further include node identification in the data information, the end
End determines final data information according to the data information after each decryption, comprising:
The terminal is according to the corresponding relationship between preset node identification and weight, determining and each described node identification pair
The weight answered；
The terminal determines weight corresponding with node identification described in each, for the corresponding data of each described node identification
The weight of information；
The terminal, which determines, to be belonged in the data information of same data attribute mark, the power of the identical data information of the information content
It is worth summation；
The terminal determines the maximum data information of weight summation, is final data information.
4. the method according to claim 1, wherein being believed in the terminal according to the data after each decryption
Breath, after determining final data information, further includes:
The terminal generates the benefits information of node identification corresponding with final data information；
The benefits information is sent to node corresponding to node identification corresponding with final data information by the terminal,
So that benefits information is sent to data providing device corresponding with final data information by the node.
5. method according to claim 1-4, which is characterized in that the method, further includes:
Each of at least one data providing device data providing device by data information, the storage of dispersion to it is described at least
In each of one node node.
6. according to the method described in claim 5, it is characterized in that, each of at least one data providing device data mention
For equipment by data information, the storage of dispersion is into each of at least one node node, comprising:
Each of at least one data providing device data providing device according to distributed hashtable DHT Routing Protocol, according to
The hashed value of each of at least one node described in secondary determination node；
Each of at least one data providing device data providing device is not new according to the determination of the hashed value of present node
Node when being generated, determine data information memory into present node.
7. method according to claim 1-4, which is characterized in that the method, further includes:
The renewed treaty time-out time of each of at least one node node acquisition node；
Each of at least one node node is both greater than default in continuous n times in the renewed treaty time-out time for determining node
Time, it is determined that node is down status.
8. a kind of data-acquisition system based on block chain characterized by comprising at least one of terminal and block chain section
Point；
Wherein, the terminal includes:
First sending module sends data acquisition request at least one node into block chain, and the data acquisition is asked
It include user identifier and data attribute-bit in asking, so that the determination of each of at least one described node node and the use
Family mark and the data attribute identify corresponding data information；
Receiving module, for receiving each of at least one node node, the data information of transmission, wherein described
It include that the data attribute identifies in data information；
Deciphering module obtains each for each of at least one data information data information to be decrypted
Data information after decryption；
Determining module, for determining final data information according to the data information after each decryption.
9. system according to claim 8, which is characterized in that the determining module is specifically used for:
It determines and belongs in the data information of same data attribute mark, the identical data information number of the information content；
It determines the largest number of data informations, is final data information.
10. system according to claim 8, which is characterized in that the determining module is specifically used for:
According to the corresponding relationship between preset node identification and weight, power corresponding with node identification described in each is determined
Value；
Corresponding with node identification described in each weight is determined, for the power of the corresponding data information of each described node identification
Value；
It determines and belongs in the data information of same data attribute mark, the weight summation of the identical data information of the information content；
It determines the maximum data information of weight summation, is final data information.
11. system according to claim 8, which is characterized in that the terminal, further includes:
Generation module, for, according to the data information after each decryption, determining final data information in the determining module
Later, the benefits information of node identification corresponding with final data information is generated；
Second sending module, it is right for by the benefits information, being sent to node identification institute corresponding with final data information
The node answered, so that benefits information is sent to data providing device corresponding with final data information by the node.
12. according to the described in any item systems of claim 8-11, which is characterized in that the system, further includes: at least one number
According to offer equipment；
Each of at least one data providing device data providing device, for by data information, the storage of dispersion to institute
It states in each of at least one node node.
13. system according to claim 12, which is characterized in that each of at least one data providing device data
Equipment is provided, is specifically used for:
According to distributed hashtable DHT Routing Protocol, the hash of each of at least one node node is successively determined
Value；
When determining that not new node is generated according to the hashed value of present node, determine data information memory to present node
In.
14. according to the described in any item systems of claim 8-11, which is characterized in that each of at least one node section
Point, is specifically used for:
Obtain the renewed treaty time-out time of node；
In the renewed treaty time-out time for determining node, preset time is both greater than in continuous n times, it is determined that node is down status.
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