CN108804928A - The secure and trusted block chain and management method of data in a kind of traceability system - Google Patents
The secure and trusted block chain and management method of data in a kind of traceability system Download PDFInfo
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- CN108804928A CN108804928A CN201810745266.7A CN201810745266A CN108804928A CN 108804928 A CN108804928 A CN 108804928A CN 201810745266 A CN201810745266 A CN 201810745266A CN 108804928 A CN108804928 A CN 108804928A
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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
- G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
- G06F21/57—Certifying or maintaining trusted computer platforms, e.g. secure boots or power-downs, version controls, system software checks, secure updates or assessing vulnerabilities
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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
- G06F21/64—Protecting data integrity, e.g. using checksums, certificates or signatures
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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
- G06Q30/018—Certifying business or products
- G06Q30/0185—Product, service or business identity fraud
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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
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Mining
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2463/00—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00
- H04L2463/102—Additional details relating to network architectures or network communication protocols for network security covered by H04L63/00 applying security measure for e-commerce
Abstract
The invention belongs to agricultural product technical field of data processing, the secure and trusted block chain and management method of data in a kind of traceability system are disclosed, client layer is user oriented interface and executes man-machine interface information exchange with agricultural product consumer；Block chain service is output to other resource layers by client layer；Management/service layer provides the management service for being uniformly accessed into each participant node of tracing to the source with agricultural product；Core layer is the Core Feature layer of block catenary system, and reliable efficient service ability is provided for safe traceability system；It is required basic running environment and component that basal layer, which provides block catenary system normal operation,；Cross-layer functional layer provides clothes for the communication of agricultural product traceability system and infrastructure.The safe communication system of block chain is transplanted in platform by the present invention, is allowed faster and more transparent information sharing.The communication of specification information is that the encryption mechanism of strong security ensures information interaction security using asymmetric encryption system/Public Key Infrastructure.
Description
Technical field
The invention belongs in agricultural product technical field of data processing more particularly to a kind of traceability system data it is secure and trusted
Appoint block chain and management method.
Background technology
Currently, the prior art commonly used in the trade is such：
(1) current agricultural product traceability system, the unified Valuation Standard of neither one, in various traceability systems, due to master
Pipe portion door, traceability system, supply link are not quite similar, domestic ununified coding scheme, it is difficult to realize full supply chain one
Body is traced to the source.
(2) current agricultural product traceability system data storage is three-layer structure B/S patterns, is tieed up according to the tables of data to be created
Shield operation layer and data exchange layer, the relationship or non-relational database of use, people give the work of data record, storage
The mechanism of centralization completes.
(3) current agricultural product traceability system by the third-party institution guarantee or guarantee.
(4) block chain is a kind of Distributed sharing encrypting database, and Chinese Ministry of Industry and Information was defined as one kind in 2016
Innovation and application of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm in Internet era
Pattern.Block chain is a kind of " decentralization trust network ", can integrate and automate human-computer interaction and the interaction of machine machine；Block chain
It is also a kind of coordination system, pattern is chased by credit, evidence and compensation reward to encourage any each side that need not be trusted to join
With cooperate.
In conclusion problem of the existing technology is：
(1) in the book keeping operation technology and entire supply chain of existing agricultural product, the producer, processor, logistics service person, supervisor
There are multiple information systems, many information are recorded in the node shelves of isolated node database and non-digitalization for structure and consumer etc.
In case, in agricultural product data traceability system there is isolated island in data fusion and information so that information verification is cumbersome, and data are handed over
The verification operational difficulties of mutual formula are heavy.
Solution：By information on each node such as the producer, processor, logistics service person, regulatory agency and consumer
Expression digitization, and come its format of specification and filter redundancy and duplicate message by the way of agreement, reach data height and melt
It closes, while also making all node datas and its modification transparent procedures visible.The problem of avoiding information island between different system.
(2) transparent ledger and its sincere book keeping operation security mechanism are poor, and for consumers, transparent account book refers to
Consumer can see the complete data of each link participant record.Lacking central node trusty and trusty
In the case of channel, each node being distributed in a network should be difficult to reach common understanding.
Solution：Block chain technology is by agricultural-product supply-chain participant manufacturer, processor, logistics service provider, prison
The participants tissue such as pipe mechanism and consumer establishes series of rules, and participant must participate in accounting procedure, by the activity of participation
Detail records are on record, common to participate in book keeping operation, storage and mutually supervision.The change of each ledger must be by all each side participants
Verification so that while flow becomes credible and transparent, related participant trusting relationship to each other and continuation can also be established
Transparent shared class account book.
(3) prior art does not utilize distributed data storage chain technology to ensure the trace to the source authenticity and robustness of data.It is existing
There is the charging information of agricultural product traceability system to be all recorded in single centralization storage system, it is possible to which there are single participant masters
Body distorts the problem of information.Meanwhile data may also suffer from feeling in hacker couple the attack of storage system, make the authenticity of information by
To threat.
Solution：The decentralization of block chain is exactly to be stored in data distribution formula on multiple nodes of Internet of Things,
And additions and deletions, the modification of each node data need the maintenance person of all nodes while approving and could carry out.In block chain technology,
Each node on Internet of Things has the maintenance side of exclusive authority, is both the participant of the node respective operations.
(4) agricultural product database security of tracing to the source is poor.The safe communication system of block chain is not transplanted to by the prior art
In platform, it can not achieve faster and more transparent information sharing.
Solution：The communication of specification information is the encryption mechanism of strong security, using asymmetric encryption Public Key Infrastructure and is added
Close hash algorithm solves credit problems, ensures information interaction security.Only when the whole network major part node (or even all sections
Point) all think simultaneously when this records correct or after all node all comparison results for participating in record are unanimously adopted, record
Authenticity can just obtain the whole network approval, and record data just allow to be written into block.The net of a distributed frame is built simultaneously
Network system, all data all real-time updates allowed in database are simultaneously deposited in all network nodes for participating in record.
Solve the difficulty and meaning of above-mentioned technical problem：
It traces to the source data storage problem in agricultural product, the core of block chain technology of the present invention is to solve three in database
A problem：How to enable database to store the information of lower magnanimity, ensures database under the system of not centralized architecture
Integrality？Even if participating in certain node collapses of data record, moreover it is possible to ensure the normal operation and letter of entire Database Systems
It ceases complete？So that the database that this rigorous and full storage gets off is become believable, prevents from distorting？It is trusty lacking
In the case of central node and channel trusty, how each node being distributed in a network reaches common understanding？
Meaning：Account book of building a consensus solves the information of supply chain islanding problem that agricultural product are traced to the source；By decentralization and go
The mode of trust solves the problems, such as the safety of data and prevents from distorting, and decentralization and the mode trusted is gone to make subparticipation people
The integrality of block chain can not also be changed by playing tricks, and it is even more impossible to distort the data in block chain, block chain database can have been kept
Whole property, continuity and consistency.
The present invention realizes a kind of method without trusting individual node, can create common recognition network.Block chain technology is not having
Have under the distributed p 2 p of central control point, the method operated using distributed collective constructs the self-organizing of a P2P
Network.
One collective of design safeguards the technology in an authentic data library, and one is integrated using Encryption Algorithm, the transmission of P2P files etc.
A safe agricultural product data are traced to the source, these technologies are dexterously combined with database, form a kind of new data note
Record is transmitted, the mode of storage and presentation.
Block chain is merged with agricultural product traceability system establishes a general agricultural product quality and safety trace platform, the platform
Using the networking block chain technology and technology of Internet of things of cutting, the core connotation of " trace to the source, deposit card, debate the true and false " is practiced, specifically
Function has：Label wireless identification, remote access, each link of product be transparent to be presented, data can not distort, anti-fake not reproducible, letter
Cease compression, communication encryption, information security interaction, secret protection, timestamp verification etc..
Invention content
In view of the problems of the existing technology, the present invention provides a kind of secure and trusted blocks of data in traceability system
Chain and management method.
The present invention establish one more effective, more decentralization, more flexible DPOS common recognition mechanism.
The present invention propose agricultural product traceability system realize distributed book keeping operation, it is distributed propagate, this is three big for distributed storage " point
Cloth " technology：
The present invention propose agricultural product trace to the source full supply chain " block+chain=timestamp " book keeping operation mode, " block+chain "
Structure is to we provide the complete history of a database, and block chain provides the lookup work(of each data in database
Can, block chain database covers a timestamp to keep accounts by the keeper of the whole network in each block, indicates this letter
Breath is the write-in of this time, forms a database that can not be distorted, can not forge；
The present invention builds the network system of a distributed frame, and all data all real-time updates allowed in database are simultaneously deposited
It is put in all network nodes for participating in record.Accordingly even when part of nodes damages or by hacker attack, will not influence entire
The data record and information update of database.It allows the information of exchange of value to be sent to the whole network by distribution propagation, passes through distribution
Formula book keeping operation determines message data content, generates block data after covering timestamp, then be sent to each section by distribution propagation
Point realizes distributed storage；
Block chain technology allows all data in database to be stored in all computer nodes of system, and in real time more
Newly.The structure setting of complete decentralization enables data to record in real time, and in the network node of each participation data storage
Update, this just greatly improves the safety of database.
The invention is realized in this way in a kind of traceability system data secure and trusted block chain, including client layer, pipe
Reason/service layer, core layer, basal layer and cross-layer function；
Client layer, by the entrance, executes and believes with the man-machine interface of agricultural product consumer for providing interface to the user
Breath interaction；Block chain service is output to other resource layers, such as management/service layer and core layer, cross-layer block chain clothes are provided
The support of business；
Management/service layer, for providing the management service for being uniformly accessed into each participant node of tracing to the source with agricultural product；
Core layer, for providing reliable efficient service ability；
Basal layer, for providing the required basic running environment of normal operation and component；
Cross-layer functional layer, for for agricultural product traceability system communication and infrastructure service is provided.
Further, basal layer includes information storage module, computing module, network module；Information storage module storage supply
The write-in information of each layer of chain；Computing module is handled storage information by data fusion, and data are realized by network module
Between each node publication communication；
Cross-layer functional layer includes four development layer, operation layer, safe floor, supervision and audit layer part；Development layer is used for structure
Build management and test and management；Operation layer serves tactical management, exception management, payment management and parallel link management；Safe floor
For certification and Identity Management, authorize security strategy and secret protection；Supervision and audit are real for supervising support and audit
It is existing；
Core layer include common recognition mechanism module, sequential service module, secret protection module, encrypting module, summarization module with
Digital Signature module；
Common recognition mechanism module, in the case of no center, large-scale participant to reach common understanding, and builds area jointly
Block chain database；
Sequential service module, it is right for generating a set of record time order and function, can not distort, database trusty
The activity of value Transfer is recorded, is transmitted, is stored, and last result must be believable；
Encrypting module, which is based on hash algorithm, for encrypting the data information on chain.Data cryptographic Hash is stored in
In Item structures, multiple Item blocks constitute data block, and the cryptographic Hash calculated layer by layer can obtain the Merkle roots of this data block,
In Merkle roots to bit coin block chain, realization can not distort；
Summarization module, the data of tracing to the source for being stored in each Item include data owner's public key, metadata, data
One of three information of making a summary；
Secret protection module, for being the feelings of person ownership in data using means such as zero-knowledge proof and homomorphic cryptographies
Under condition, does not expose privacy with anonymous mode and personal data are effectively used and exchanged；
Digital Signature module records the information of every transaction record of agricultural-product supply-chain using Digital Time-stamp technology,
It is a kind of application of mutation of digital signature technology.Timestamp includes three parts：Need the abstract of the file of timestamp
(digest), the third-party institution receives the date and time of file, the digital signature of the third-party institution.Timestamp in block chain
Signature writes on block chain, and the past part of block chain cannot be modified in any way, ensure that transaction
Can not tamper.
Another object of the present invention is to provide a kind of secure and trusted blocks equipped with data in the traceability system
The information data processing terminal of chain.
Another object of the present invention is to provide a kind of secure and trusted blocks equipped with data in the traceability system
The agricultural product of chain are traced to the source platform.
Another object of the present invention is to provide a kind of secure and trusted block chain management methods of data in traceability system
Including：
A whole set of protocol is built, each node of the whole network verifies other nodes records results while participating in record
Correctness；In the case of no center, large-scale participant reaches common understanding, common to build block chain database；
Block chain designer is not that the accounting record person of profession reserves a specific position, and is desirable to by voluntary
Principle come establish it is a set of everybody can participate in record information distributed book keeping operation system, to by accountability it is decentralized, by
All participants of whole network record jointly.
The present invention proposes that rivest, shamir, adelman mathematically solves the product of trust problem.
Efficient communication by the technology, storage, network and the platform resource that provide network to links；
Carry out the realization of distributed storage and database security；After being added by automatic collection, system loyalty data, really
The book keeping operation of vertical interdependent node is weighed and is kept accounts；After the information of different nodes charges to block, just to all sections of the full chain of agricultural product
Point is broadcasted, and by going through the data exchange and routing algorithm of chain, is exchanged and is route on cloud and each node, establish P2P and recognize
Demonstrate,prove common recognition mechanism；Realize that the distributed storage of data and common recognition are protected by the distributed data base of each node, it is ensured that data are not
Can distort with it is believable.
Further, secure and trusted block chain management method of data further includes in the traceability system：
The verification comentropy that only verification is merchandised of transaction does not compare raw information between each node in block chain
Right, the initial data for not transmitting transaction between node only transmits the Hash of transaction；Former planting site, supply chain, retail trader and user's profit
Agricultural product are recorded in the information of tracing to the source of the link in respective block with hash algorithm, ensure the safety that data store and transmit.
Another object of the present invention is to provide a kind of secure and trusted block chain pipe realizing data in the traceability system
The computer program of reason method.
Another object of the present invention is to provide a kind of secure and trusted block chain pipe realizing data in the traceability system
The information data processing terminal of reason method.
Another object of the present invention is to provide a kind of computer readable storage medium, including instruction, when its on computers
When operation so that computer executes secure and trusted block chain management method of data in the traceability system.
Another object of the present invention is to provide a kind of secure and trusted block chain pipe running data in the traceability system
The decentralization trust network of reason method.
In conclusion advantages of the present invention and good effect are：
The present invention is using database security design of tracing to the source.The safe communication system of block chain is transplanted in platform, is allowed
Faster and more transparent information sharing.The communication of specification information is the encryption mechanism of strong security, using asymmetric encryption system, public affairs
Key system ensures information interaction security.On resisting attack, the advantages of invention, is substantially to reduce participation verification and book keeping operation section
The quantity of point can reach the common recognition verification of second grade.Present invention distributed data storage chain technology ensures the true of data of tracing to the source
Property and robustness.In block chain technology, each node of agricultural product full supply chain has the maintenance side of exclusive authority, is both this
The participant of node respective operations.So-called decentralization is exactly to be stored in data distribution formula on multiple nodes of Internet of Things,
And additions and deletions, the modification of each node data need the maintenance person of all nodes while approving and could carry out.
It traces to the source problem encountered for Agricultural Products, the trace to the source security performance of data of the agricultural product based on block chain is answered
To method such as the following table 1.
Table 1：Current Problems and solution
In the secure context of data, the system is using common recognition algorithm innovation, security privacy protection, feature and advantage such as table
Shown in 2.
Table 2：Key technology and its feature and advantage
Block chain is merged with agricultural product traceability system establishes a general agricultural product quality and safety trace platform, the platform
Have using the networking block chain technology and technology of Internet of things, concrete function of cutting：Label wireless identification, remote access, product
Each link is transparent to be presented, data can not distort, the interaction of anti-fake not reproducible, Information Compression, communication encryption, information security, privacy
Protection, timestamp verification etc..
Description of the drawings
Fig. 1 is agricultural product traceability system data safety performance resolving ideas flow chart provided in an embodiment of the present invention.
Fig. 2 is functional unit framework map of the block chain provided in an embodiment of the present invention in agricultural product security traceability system.
Fig. 3 is that the distributed agricultural product provided in an embodiment of the present invention based on Hash and encryption technology algorithm data of tracing to the source are deposited
Chu Tu.
Fig. 4 is that data agricultural product provided in an embodiment of the present invention of establishing are traced to the source the data structure diagrams of data.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Pass through distribution book keeping operation, distributed propagation, distributed storage this three big " distribution ".
The method of block chain is：The structure of database is innovated, data are divided into different blocks, each block is logical
It crosses behind specific Info Link to a upper block, front and back to be presented the data of complete set along even, in block data are with electricity
The form of subrecord is got off by permanent storage, and block is successively to generate one by one in chronological order, each block record
Lower all exchange of value activities that it occurs during being created, all blocks take together to form a record intersection.
The present invention proposes agreement increase income, decentralization, builds a whole set of protocol, each node of the whole network is allowed to exist
Also the correctness of other nodes records results is verified while participating in record.The distributed book keeping operation mode of block+chain.Specifically
Embodiment is：The maintenance of all individual nodes all sets a signature, and when changing certain nodal information, it is needed by modification node
Modification operation could be implemented by receiving the signature of each node maintenance person.It is distributed using the feature of itself decentralization of block chain
Network overcome the various drawbacks of centralized system；So that block chain is with safe, transparent, " can not distort " distributed
Ledger characteristic, to ensure that the authenticity of data.
The present invention establish one more effective, more decentralization, more flexible DPOS common recognition mechanism.The work of DPOS is implemented
Mode：Allow all shareholders that all there is franchise, decentralization indicates that each shareholder possesses influence power by its shareholding ratio, 51%
The result of shareholder vote will be irreversible and binding.It is that efficient method reaches 51% batch by time that it, which is challenged,
Standard, to reach this target, its franchise can be authorized a representative by each shareholder.
Become first and represents：Its franchise can be authorized a representative by each shareholder, and highest become of gained vote represents,
Registered public keys on network are then dispensed for one 32 peculiar identifiers；Then power to make decision ballot paper：Every friendship that user is done
Easily ballot paper will be transferred to " output represents " from " input and represent ", and obtain most preceding 100 representatives of poll by given time table wheel
The raw block of miscarriage, every represents and is assigned to a period and carrys out production district block.It finally keeps representing honesty：Each wallet will be shown
One positioning indicator, if they miss too many block, system will recommended user go to change a new representative.
The present invention builds the network system of a distributed frame, and all data all real-time updates allowed in database are simultaneously deposited
It is put in all network nodes for participating in record.Accordingly even when part of nodes damages or by hacker attack, will not influence entire
The data record and information update of database.It allows the information of exchange of value to be sent to the whole network by distribution propagation, passes through distribution
Formula book keeping operation determines message data content, generates block data after covering timestamp, then be sent to each section by distribution propagation
Point realizes distributed storage.
Block chain designer is not that the accounting record person of profession reserves a specific position, and is desirable to by voluntary
Principle come establish it is a set of everybody can participate in record information distributed book keeping operation system, to by accountability it is decentralized, by
All participants of whole network record jointly.
Block chain technology allows all data in database to be stored in all computer nodes of system, and in real time more
Newly.The structure setting of complete decentralization enables data to record in real time, and in the network node of each participation data storage
Update, this just greatly improves the safety of database.
It establishes data agricultural product to trace to the source the data structures of data, block chain is the group organization data as unit of block, the whole network
All transaction records are all stored in the form of trading card in globally unique block chain, and block is a kind of number of record transaction
According to structure, it is responsible for recording the All Activity information in for the previous period.Its structure chart is as shown in Figure 4.
Agricultural product trace to the source data secure data is shared and access control scheme：In the block chain technology that agricultural product are traced to the source,
Encrypted hash algorithm is easy to calculate the cryptographic Hash of data, but is difficult in turn to extrapolate former data according to cryptographic Hash.
Merkle trees are a data structures based on hash algorithm, and its feature is that each non-leaf nodes is its leaf node
Cryptographic Hash.In point-to-point network, the data whether verify data is tampered or receives can be carried out using Merkle trees is
No damage, all records generate unique Merkle roots by the Hash procedure of Merkle trees, are stored in the head of block chain.
Agricultural product trace to the source the data that full supply chain is traced to the source the public key encryption mode for using the owner is stored in it is distributed
In database, the abstract of data is stored using lamination mechanism.The cryptographic Hash of data is placed in Item structures, it is each calculating
The cryptographic Hash of Item is put into Item block structures, and the data of tracing to the source stored in each Item include three information：Data owner
Public key, metadata, data summarization.
Agricultural product storing and accessing for data of tracing to the source is realized using the proxy re-encryption mechanism in cryptography to agricultural product
The access of distributed storage data and shared.Traditional re-encryption field is just not present in non-stop layer and without believable third party
Unique proxy role in scape.
With reference to specific embodiment and analysis, the invention will be further described.
1, it is based on block chain technology, provides the resolving ideas for the secure and trusted problem that agricultural product are traced to the source.Block chain exists
As a kind of Floor layer Technology of universality in Internet of Things, high containment is provided for agricultural product traceability system, basis trusty is set
Meter reduces operation and the Cost of Credit of centralization device network, meanwhile, pass through the technologies such as authentication, licensing scheme, block chain
Safety and the privacy of traceability system are ensured from the storage of agricultural product information, transmission etc..Agricultural product traceability system data
In security performance, resolving ideas such as Fig. 1.
2, the agricultural product traceability system data safety realization technology trusty based on block chain technology：
(1) block chain technology " transplanting " arrives the realization of agricultural product security traceability system.Pass through the agriculture based on block chain technology
The functional unit of product safety traceability system designs to realize.In conjunction with the key technology feature of block chain, from the function of block chain
The functional unit framework map of angle design agricultural product traceability system.The level knot that functional unit framework map passes through " four cross four are vertical "
Structure realizes the data safety trusted of agricultural product traceability system.Specifically include client layer, management/service layer, core layer, basis
Layer and cross-layer function, client layer is user oriented interface, by the entrance, executes and believes with the man-machine interface of agricultural product consumer
Block chain service can also be output to other resource layers, provide the support of cross-layer block chain service by breath interaction, client layer；Pipe
Reason/service layer provides the management service for being uniformly accessed into each participant node of tracing to the source with agricultural product；Core layer is block catenary system
Core Feature layer provides reliable efficient service ability for safe traceability system, including common recognition mechanism, sequential service, privacy guarantor
The modules such as shield, encryption, abstract and digital signature；It is required basis operation ring that basal layer, which provides block catenary system normal operation,
Border and component, such as data storage, operation container, network communication.Functional unit of the block chain in agricultural product security traceability system
Framework map is as shown in Figure 2.
Core layer include common recognition mechanism module, sequential service module, secret protection module, encrypting module, summarization module with
Digital Signature module；
Common recognition mechanism module, in the case of no center, large-scale participant to reach common understanding, and builds area jointly
Block chain database；
Sequential service module, it is right for generating a set of record time order and function, can not distort, database trusty
The activity of value Transfer is recorded, is transmitted, is stored, and last result must be believable；
Encrypting module is used for the data structure Merkle trees based on hash algorithm, utilizes the information on asymmetric encryption chain；
Summarization module, the data of tracing to the source for being stored in each Item include data owner's public key, metadata, data
One of three information of making a summary；
Secret protection module, for being the feelings of person ownership in data using means such as zero-knowledge proof and homomorphic cryptographies
Under condition, does not expose privacy with anonymous mode and personal data are effectively used and exchanged；
Digital Signature module is stabbed for the write time, and each segment of every information of agricultural-product supply-chain all has respectively
The data record of main body.
(2) block chain technical networkization and compatible realization.By the demand of agricultural product traceability system and block chain function structure
Abundant fusion is built, the technologies such as the credible of block chain, common recognition are dissolved into traceability system environment, solves the net that traceability system faces
The problems such as network Single Point of Faliure and tediously long industrial chain of tracing to the source.Major design is embodied on application framework, block chain and product traceability system
The fusion of system is divided into three layers, is respectively from the bottom to top：Communication and infrastructure, block chain, agricultural product traceability system application layer.
Block chain as middle layer using communication and infrastructure hardware resource, for agricultural product traceability system application layer provide trust,
The mechanism such as common recognition, agricultural product traceability system application layer utilize the service that block link layer provides, reinforce the abilities such as its safety and privacy；
Block chain Reference Architecture associated component provides service support for agricultural product traceability system, and the service that block chain component provides includes peace
Entirely, credible, common recognition, anti-tamper function services guarantee；Meanwhile the cross-layer function of block chain Reference Architecture is agricultural product traceability system
Communication and infrastructure provide service, be based on basic resource control construction, pass through peer-to-peer network provide technology, storage, net
The resources such as network and platform realize the efficient communication of links.
(3) realization of distributed storage and database security.In agricultural product traceability system, original seed plant processing, supply chain,
The relevant information of the nodes such as retail trader and user establishes associated section after being added by algorithm automatic collection, system loyalty data
" the book keeping operation power " of point simultaneously carries out " book keeping operation ".After the information of different nodes charges to block, just to all nodes of the full chain of agricultural product into
Row broadcast is quickly exchanged and is route on cloud and each node, establish P2P and recognize by going through the data exchange and routing algorithm of chain
Demonstrate,prove common recognition mechanism；Realize that the distributed storage of data and common recognition are protected by the distributed data base of each node, it is ensured that data are not
Can distort with it is believable.Distributed agricultural product based on Hash and encryption technology algorithm are traced to the source in data storage, block chain with it is hidden
Private protection, safety-related basic algorithm mainly have Hash and encryption.To the verification of transaction between each node in block chain
The original number of transaction need not be transmitted without raw information is compared by needing the comentropy that verification is merchandised between node
According to the Hash for only transmitting transaction.Former planting site, supply chain, retail trader and user are remembered using hashing algorithm in respective block
Agricultural product have been recorded in the information of tracing to the source of the link, ensure that the safety that data store and transmit, have been calculated based on Hash and encryption technology
The distributed agricultural product of method trace to the source data storage as shown in Fig. 3.
Wherein, former planting site, supply chain, retail trader and user have recorded agricultural product using hashing algorithm in respective block
In the information of tracing to the source of the link, the safety that data store and transmit ensure that.
Fig. 4 is that data agricultural product provided in an embodiment of the present invention of establishing are traced to the source the data structure diagrams of data.
In the above-described embodiments, can come wholly or partly by software, hardware, firmware or its arbitrary combination real
It is existing.When using entirely or partly realizing in the form of a computer program product, the computer program product include one or
Multiple computer instructions.When loading on computers or executing the computer program instructions, entirely or partly generate according to
Flow described in the embodiment of the present invention or function.The computer can be all-purpose computer, special purpose computer, computer network
Network or other programmable devices.The computer instruction can store in a computer-readable storage medium, or from one
Computer readable storage medium is transmitted to another computer readable storage medium, for example, the computer instruction can be from one
A web-site, computer, server or data center pass through wired (such as coaxial cable, optical fiber, Digital Subscriber Line (DSL)
Or wireless (such as infrared, wireless, microwave etc.) mode is carried out to another web-site, computer, server or data center
Transmission).The computer read/write memory medium can be that any usable medium that computer can access either includes one
The data storage devices such as a or multiple usable mediums integrated server, data center.The usable medium can be magnetic Jie
Matter, (for example, floppy disk, hard disk, tape), optical medium (for example, DVD) or semiconductor medium (such as solid state disk Solid
State Disk (SSD)) etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. secure and trusted block chain of data in a kind of traceability system, which is characterized in that the peace of data in the traceability system
Trusted block chain includes entirely：
Client layer, by the entrance, is executed and is handed over the man-machine interface information of agricultural product consumer for providing interface to the user
Mutually；Block chain service is output to management/service layer and core layer, the support of cross-layer block chain service is provided；
Management/service layer, for providing the management service for being uniformly accessed into each participant node of tracing to the source with agricultural product；
Core layer, for providing reliable efficient service ability；
Basal layer, for providing the required basic running environment of normal operation and component；
Cross-layer functional layer, for for agricultural product traceability system communication and infrastructure service is provided.
2. secure and trusted block chain of data in traceability system as described in claim 1, which is characterized in that
Basal layer includes information storage module, computing module, network module；Information storage module stores the write-in of each layer of supply chain
Information；Computing module is handled storage information by data fusion, by network module realization data between each node
Publication communication；
Cross-layer functional layer includes four development layer, operation layer, safe floor, supervision and audit layer part；Development layer is managed for building
Reason and test and management；Operation layer serves tactical management, exception management, payment management and parallel link management；Safe floor is used for
Certification and Identity Management authorize security strategy and secret protection；Supervision and audit are realized for supervising support and audit；
Core layer includes common recognition mechanism module, sequential service module, secret protection module, encrypting module, summarization module and number
Signature blocks；
Common recognition mechanism module, is used in the case of no center, and large-scale participant reaches common understanding, common to build block chain
Database；
Sequential service module, for generating a set of record time order and function, can not distort, database trusty, to value
The activity of transfer is recorded, is transmitted, is stored；
Encrypting module is based on hash algorithm, for encrypting the data information on chain；Data cryptographic Hash is stored in Item structures
In, multiple Item blocks constitute data blocks, and the Hash calculated layer by layer is worth to the Merkle roots of the data block, Merkle roots to than
In special coin block chain, it can not distort；
Summarization module, the data of tracing to the source for being stored in each Item include data owner's public key, metadata, data summarization
One of three information；
Secret protection module, for utilizing the means such as zero-knowledge proof and homomorphic cryptography, in the case where data are person ownership,
It does not expose privacy with anonymous mode personal data are effectively used and exchanged；
Digital Signature module records the information of every transaction record of agricultural-product supply-chain using Digital Time-stamp technology.
3. a kind of letter equipped with secure and trusted block chain of data in traceability system described in claim 1~2 any one
Cease data processing terminal.
4. a kind of agriculture equipped with secure and trusted block chain of data in traceability system described in claim 1~2 any one
Product traceability platform.
5. in a kind of traceability system as described in claim 1 in the traceability system of secure and trusted block chain of data data peace
Full trusted block chain management method, which is characterized in that secure and trusted block chain manager of data in the traceability system
Method includes：
A whole set of protocol is built, each node of the whole network is verifying other nodes records results just while participating in record
True property；In the case of no center, large-scale participant reaches common understanding, common to build block chain database；
Links are communicated by the technology, storage, network and the platform resource that provide network；
After being added by automatic collection, system loyalty data, the book keeping operation for establishing interdependent node is weighed and is kept accounts；When different sections
After the information of point charges to block, broadcasted to all nodes of the full chain of agricultural product, by going through the data exchange and routing algorithm of chain,
It exchanges and route on cloud and each node, establish P2P certifications common recognition mechanism；Data are realized by the distributed data base of each node
Distributed storage and common recognition protect, make data can not distort with it is believable.
6. secure and trusted block chain management method of data in traceability system as claimed in claim 5, which is characterized in that described
Secure and trusted block chain management method of data further includes in traceability system：
The verification comentropy that only verification is merchandised of transaction is not compared raw information between each node in block chain,
The initial data for not transmitting transaction between node only transmits the Hash of transaction；Former planting site, supply chain, retail trader and user utilize Kazakhstan
Uncommon algorithm records agricultural product in the information of tracing to the source of the link in respective block, ensures the safety that data store and transmit.
7. a kind of secure and trusted block chain management method realizing data in traceability system described in claim 5-6 any one
Computer program.
8. a kind of secure and trusted block chain management method realizing data in traceability system described in claim 5-6 any one
Information data processing terminal.
9. a kind of computer readable storage medium, including instruction, when run on a computer so that computer is executed as weighed
Profit requires secure and trusted block chain management method of data in the traceability system described in 5-6 any one.
10. secure and trusted block chain manager of data in traceability system described in a kind of operation claim 5-6 any one
The decentralization trust network of method.
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Application publication date: 20181113 |