CN114741738A - Tracing data processing method and device based on block chain, electronic equipment and medium - Google Patents
Tracing data processing method and device based on block chain, electronic equipment and medium Download PDFInfo
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Abstract
The invention relates to the technical field of block chains, and provides a tracing data processing method, a tracing data processing device, electronic equipment and a tracing media based on the block chains, wherein the method comprises the following steps: creating a tracing link of a target object based on original tracing data, and deploying the tracing link into a block chain through an intelligent contract; analyzing the tracing data storage request to obtain an analysis result; sending the analysis result to an NFT generation model of the intelligent contract, generating NFT data of a data provider and storing the data; when detecting that the data inquiry party has the authority to download the tracing data, generating an authorization message through an intelligent contract, and downloading the tracing data based on the authorization message. The invention encapsulates the scattered data of the data provider into an integral body which can not be split in an NFT form, thereby carrying out credible evidence storage on the traceable data and the data provider and improving the positioning efficiency and accuracy of the traceable source of the traceable data.
Description
Technical Field
The invention relates to the technical field of block chains, in particular to a tracing data processing method and device based on a block chain, electronic equipment and a medium.
Background
Aiming at the commodity industry, the supply chain is relatively isolated, each node on one industry chain is self-formed into an information isolated island, the full-process informatization degree is low, and the transaction data tracing difficulty is extremely high. In the existing tracing model, a certain object to be traced is marked at the output source of the tracing object, and each data provider participating in the transmission link of the tracing object provides link data to a tracing system.
However, after each data provider uploads data to the traceability system, the data source needs to be positioned through complicated processes such as a traceability model, data analysis, multi-party verification and the like, so that the traceability data positioning efficiency is low. Meanwhile, as the relation between the data and the data provider is not trusted and verified, the data provider may repudiate the fact and tamper the data, and the accuracy rate of the source tracing data is low.
Disclosure of Invention
In view of the above, it is necessary to provide a method, an apparatus, an electronic device, and a medium for processing tracing data based on a block chain, where scattered data of a data provider is encapsulated in an NFT form into an integral that is not separable, so that the tracing data and the data provider are certified in a trusted manner, and the efficiency and accuracy of locating a tracing source of the tracing data are improved.
The first aspect of the present invention provides a method for processing tracing data based on a blockchain, where the method includes:
the method comprises the steps of receiving original tracing data of a target object, creating a tracing link of the target object based on the original tracing data, and deploying the tracing link into a block chain through an intelligent contract, wherein the tracing link comprises a tracing code;
responding to a received source tracing data evidence storing request of a data provider of the target object, and analyzing the source tracing data evidence storing request to obtain an analysis result;
sending the analysis result to an NFT generation model of the intelligent contract, generating target NFT data of the data provider and storing the target NFT data;
when a tracing data request for downloading the target object sent by a data inquiry party is detected, judging whether the data inquiry party has the authority to download the tracing data;
and when the data inquirer has the right to download the tracing data, generating an authorization message through the intelligent contract, and downloading the tracing data based on the authorization message.
Optionally, the sending the analysis result to the NFT generation model of the intelligent contract, and generating and validating the target NFT data of the data provider includes:
identifying the data type of each data field information in the analysis result;
when the data type of each data field information in the analysis result is recognized as text data, each data field information is sent to an NFT generation model of the intelligent contract; when the data type of each piece of data field information in the analysis result is identified not to be text data, calculating a hash value of each piece of data field information, and sending the hash value to an NFT generation model of the intelligent contract;
the NFT generation model of the intelligent contract generates the NFT identification code of the data provider, and fills the received data field information or the hash value to the corresponding position of the tracing node of the data provider according to the node name and the data field information of the tracing node of the data provider corresponding to the target tracing link and the data format of the data field information to obtain first NFT data;
filling information of the data provider in a field corresponding to the data provider to obtain second NFT data;
the NFT generation model of the intelligent contract encapsulates the NFT identification code, the first NFT data and the second NFT data, and generates target NFT data of the data provider;
and sending the target NFT data of the data provider to a data evidence storage model of the intelligent contract, and writing the target NFT data of the data provider into the block chain for evidence storage in the data evidence storage model.
Optionally, the creating a traceable link of the target object based on the original traceable data includes:
identifying the original tracing data to obtain the node name and data field information of each tracing node of the target object and the data format of each data field information;
converting each tracing node of the target object into a corresponding tracing node of a tracing link, wherein the tracing node of the tracing link comprises a node name and data field information of the tracing node and a data format of each data field information;
converting the reference relationship between the tracing nodes into edges between the nodes in the corresponding tracing links, wherein the edges between the tracing nodes in the tracing links are used as the reference relationship between the tracing nodes in the tracing links;
and creating the tracing link of the target object according to the tracing node of the tracing link and the reference relationship between the tracing nodes in the tracing link.
Optionally, the analyzing the source tracing data evidence storing request to obtain an analysis result includes:
analyzing the tracing data evidence storing request to obtain a target tracing code and evidence storing data;
matching a target tracing link corresponding to the target tracing code from a preset database;
and sending the deposit evidence data to an intelligent contract, and analyzing the deposit evidence data by a data deposit evidence model of the intelligent contract according to a preset analysis standard to obtain an analysis result.
Optionally, the determining whether the data querying party has the right to download the tracing data includes:
analyzing a source tracing data request for downloading the target object, and acquiring an NFT (network file transfer) identification code of the source tracing data;
sending the NFT identification code to an NFT application model of an intelligent contract, generating a use application of the NFT data, and writing the use application of the NFT data into the block chain;
judging whether the use application of the NFT data is authorized or not;
when the NFT data use application obtains authorization, determining that the data inquirer has the authority to download the tracing data;
and when the NFT data use application is not authorized, determining that the data inquirer has no authority to download the tracing data.
Optionally, the generating, by the intelligent contract, an authorization message, and downloading the tracing data based on the authorization message includes:
an NFT authorization model of the intelligent contract receives an authorization message sent by a data provider and writes the authorization message into the block chain;
verifying the signature of the data inquirer based on the authorization message;
and when the verification is passed, the data inquirer downloads the source tracing data from the data storage server based on the authorization message.
Optionally, the method further comprises:
when detecting the request for inquiring the tracing data sent by the data inquirer, acquiring the tracing code of the target object;
inquiring a corresponding tracing link according to the tracing code, and matching evidence storage information of all tracing nodes on the tracing link;
and sequencing the evidence storage information of all the tracing nodes according to a preset sequencing mode, and returning a sequencing result to the data inquiring party.
A second aspect of the present invention provides a tracing data processing apparatus based on a blockchain, the apparatus including:
the system comprises a receiving and creating module, a block chain and a forwarding module, wherein the receiving and creating module is used for receiving original tracing data of a target object, creating a tracing link of the target object based on the original tracing data, and deploying the tracing link into the block chain through an intelligent contract, wherein the tracing link comprises a tracing code;
the analysis module is used for responding to the received source tracing data evidence storing request of the data provider of the target object, analyzing the source tracing data evidence storing request and obtaining an analysis result;
the generating module is used for sending the analysis result to an NFT generating model of the intelligent contract, generating target NFT data of the data provider and storing the target NFT data;
the judging module is used for judging whether the data inquiring party has the authority to download the tracing data or not when detecting a tracing data request which is sent by the data inquiring party and used for downloading the target object;
and the downloading module is used for generating an authorization message through the intelligent contract when the data inquirer has the authority to download the tracing data, and downloading the tracing data based on the authorization message.
A third aspect of the present invention provides an electronic device, where the electronic device includes a processor and a memory, and the processor is configured to implement the traceback data processing method based on a blockchain when executing a computer program stored in the memory.
A fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the traceable data processing method based on a blockchain.
In summary, the traceable data processing method, device, electronic device, and medium based on the blockchain according to the present invention create the traceable link of the target object based on the original traceable data, deploy the traceable link into the blockchain through the intelligent contract, establish a evidence storing relationship between the traceable data and a provider of the traceable data, and store the traceable data by using the blockchain, so that the traceable data is not tampered once linked up, thereby improving the security of the traceable data subsequently stored on the traceable link. Analyzing a source tracing data storage request of a data provider to obtain an analysis result, sending the analysis result to an NFT generation model of the intelligent contract, generating target NFT data of the data provider and storing the data, packaging scattered data of the data provider into an integral body which can not be split in an NFT form, and performing credible storage on the source tracing data and the data provider, so that the positioning efficiency and the accuracy of a source tracing source of the source tracing data are improved. When the data inquirer has the authority to download the tracing data, an authorization message is generated through the intelligent contract, and under the authorization condition, the tracing data is downloaded based on the authorization message, so that the security of the tracing data is improved.
Drawings
Fig. 1 is a flowchart of a tracing data processing method based on a blockchain according to an embodiment of the present invention.
Fig. 2 is a structural diagram of a tracing data processing apparatus based on a block chain according to a second embodiment of the present invention.
Fig. 3 is a schematic structural diagram of an electronic device according to a third embodiment of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a detailed description of the present invention will be given below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example one
Fig. 1 is a flowchart of a tracing data processing method based on a blockchain according to an embodiment of the present invention.
In this embodiment, the method for processing source-tracing data based on a blockchain may be applied to an electronic device, and for an electronic device that needs to perform source-tracing data processing based on a blockchain, the function of source-tracing data processing based on a blockchain provided by the method of the present invention may be directly integrated on the electronic device, or may be run in the electronic device in the form of a Software Development Kit (SDK).
As shown in fig. 1, the method for processing source tracing data based on blockchain specifically includes the following steps, and according to different requirements, the order of the steps in the flowchart may be changed, and some steps may be omitted.
S11, original tracing data of a target object are received, a tracing link of the target object is created based on the original tracing data, and the tracing link is deployed into a block chain through an intelligent contract, wherein the tracing link comprises tracing codes.
In this embodiment, in the process of processing the tracing data of the target object, a tracing link may be created for the target object, so as to implement evidence storage of the tracing data of the target object, and the tracing data is deployed into the block chain through an intelligent contract.
In this embodiment, the target object may be a product, for example, a vaccine a, and a tracing link is created for the vaccine a, where the tracing link corresponds to a unique tracing code, and the tracing code is used to uniquely identify the target object.
In this embodiment, the intelligent contract provides functions of link certificate storage, data certificate storage, NFT data generation, NFT application, NFT authorization, data source tracing query, and the like of the tracing data, and the intelligent contract includes an NFT generation model, a data certificate storage model, an NFT application model, a data certificate storage model, and an NFT authorization model.
In an optional embodiment, the creating a traceback link for the target object based on the raw traceback data includes:
identifying the original tracing data to obtain the node name and data field information of each tracing node of the target object and the data format of each data field information;
converting each tracing node of the target object into a corresponding tracing node of a tracing link, wherein the tracing node of the tracing link comprises a node name and data field information of the tracing node and a data format of each data field information;
converting the reference relationship between the source tracing nodes into edges between the nodes in the corresponding source tracing links, wherein the edges between the source tracing nodes in the source tracing links are used as the reference relationship between the source tracing nodes in the source tracing links;
and creating the tracing link of the target object according to the tracing node of the tracing link and the reference relationship between the tracing nodes in the tracing link.
In this embodiment, the original source tracing data includes node names and data field information of each source tracing node of the target object, and a data format of each data field information, and the original source data further includes source tracing data provider information of each source tracing node, original data characteristics, and other attribute information of the source tracing data.
In this embodiment, the traceability link of the target object is created according to the original traceability data, the traceability link is deployed into the blockchain through the intelligent contract, the evidence storing relationship between the traceability data and the traceability data provider is established, and the blockchain is used for storing the traceability data, so that the traceability data cannot be tampered once being uplinked, and the security of the traceability data subsequently stored on the traceability link is improved.
S12, responding to the received tracing data evidence storing request of the data provider of the target object, analyzing the tracing data evidence storing request, and obtaining an analysis result.
In this embodiment, when a data provider needs to store source tracing data of the target object, a client of the data provider sends a source tracing data storage request to a server, and the server analyzes the source tracing data storage request to obtain an analysis result.
In an optional embodiment, the parsing the traceable data evidence storing request to obtain a parsing result includes:
analyzing the tracing data evidence storing request to obtain a target tracing code and evidence storing data;
matching a target tracing link corresponding to the target tracing code from a preset database;
and sending the deposit evidence data to an intelligent contract, and analyzing the deposit evidence data by a data deposit evidence model of the intelligent contract according to a preset analysis standard to obtain an analysis result.
In this embodiment, a database may be established in advance, the database stores source tracing codes of source tracing links of all target objects, when a data provider sends a source tracing data storage request, the source tracing data storage request includes a target source tracing code and storage data, the target source tracing link may be determined quickly through the target source tracing code, the target source tracing link corresponds to a preset analysis specification, and the storage data is analyzed according to the preset analysis specification, so that management of subsequent storage data is facilitated, and management efficiency of the storage data is improved.
And S13, sending the analysis result to the NFT generation model of the intelligent contract, generating target NFT data of the data provider and storing the target NFT data.
In this embodiment, when the parsing result is stored, the parsing result is sent to an NFT generation model of an intelligent contract, and NFT encapsulation is performed on the parsing result to obtain NFT data of the data provider.
In an optional embodiment, the sending the parsing result to the NFT generation model of the intelligent contract, and generating and validating the target NFT data of the data provider includes:
identifying the data type of each data field information in the analysis result;
when the data type of each data field information in the analysis result is recognized as text data, each data field information is sent to an NFT generation model of the intelligent contract; when the data type of each piece of data field information in the analysis result is identified not to be text data, calculating a hash value of each piece of data field information, and sending the hash value to an NFT generation model of the intelligent contract;
the NFT generation model of the intelligent contract generates the NFT identification code of the data provider, and fills the received data field information or the hash value to the corresponding position of the tracing node of the data provider according to the node name and the data field information of the tracing node of the data provider corresponding to the target tracing link and the data format of the data field information to obtain first NFT data;
filling information of the data provider in a field corresponding to the data provider to obtain second NFT data;
the NFT generation model of the intelligent contract encapsulates the NFT identification code, the first NFT data and the second NFT data, and generates target NFT data of the data provider;
and sending the target NFT data of the data provider to a data evidence storage model of the intelligent contract, and writing the target NFT data of the data provider into the block chain for evidence storage in the data evidence storage model.
In this embodiment, when the target NFT data of the data provider is encapsulated, the information of the data provider is bound, so that the target NFT data is more complete, and the management efficiency of the NFT data is improved.
In this embodiment, the NFT generation model in the intelligent contract encapsulates each received data field information, hash value, information of a data provider, and an NFT identifier, where these scattered data are encapsulated in an NFT form as an undetachable whole, when the traceability data is abnormal, the NFT identifier of the abnormal traceability data is obtained, and it is determined that the data source of the abnormal traceability data is the data provider corresponding to the NFT identifier, for example, in a vaccine logistics transportation link, an operator a provides ex-warehouse commodity quantity data, an operator B provides transportation environment data such as temperature and humidity during transportation, an operator C provides transportation vehicle and driver information, and finally finds that the vaccine quantity is abnormal, it is possible to quickly locate the operator a, thereby improving the locating efficiency and accuracy of the traceability source of the traceability data, and in addition, because the target NFT data of each data provider is taken as a whole, the tracing data and the data provider are subjected to credible storage, so that the problem that the tracing data is unreliable due to tampering of the tracing data by the data provider is avoided, and the safety of the tracing data is improved.
S14, when detecting the tracing data request for downloading the target object sent by the data inquiry party, judging whether the data inquiry party has the authority to download the tracing data.
In this embodiment, the request for downloading the traceable data of the target object refers to that the data querying party requests to read the encapsulated NFT data, and in order to ensure the security of the NFT data, it needs to be determined whether the data querying party has an authority to download the traceable data of the target object.
In an optional embodiment, the determining whether the data querying party has the right to download the tracing data includes:
analyzing a source tracing data request for downloading the target object, and acquiring an NFT (network file transfer) identification code of the source tracing data;
sending the NFT identification code to an NFT application model of an intelligent contract, generating a use application of the NFT data, and writing the use application of the NFT data into the block chain;
judging whether the use application of the NFT data is authorized or not;
when the NFT data use application obtains authorization, determining that the data inquirer has the authority to download the tracing data;
and when the use application of the NFT data is not authorized, determining that the data inquirer is not authorized to download the source tracing data.
In this embodiment, the NFT application model of the intelligent contract may record the use application of the NFT data according to a request of a data querying party for downloading the traceable data of the target object and an NFT identifier of the traceable data, and write the use application of the NFT data into the block chain, where an owner of the NFT data determines whether the use application of the NFT data is authorized, determines whether the data querying party has an authority to download the traceable data according to a determination result, and authorizes the data querying party to download the traceable data when the data querying party has the authority to download the traceable data.
Further, the method further comprises:
when detecting the request for inquiring the source tracing data sent by the data inquirer, acquiring a source tracing code of the target object;
inquiring a corresponding tracing link according to the tracing code, and matching evidence storage information of all tracing nodes on the tracing link;
and sequencing the evidence storage information of all the tracing nodes according to a preset sequencing mode, and returning a sequencing result to the data inquiring party.
In this embodiment, the evidence storage information includes evidence storage records, such as the tracing code of the tracing link, the NFT identification code of each tracing node, and the use application of the NFT data.
In this embodiment, when the data querying party queries the link evidence storing information of the tracing data, all the evidence storing information of the target object can be rapidly queried through the tracing code of the tracing link of the tracing data without being authorized by the owning party, so that the tracing efficiency of the tracing data is improved.
And S15, when the data inquirer has the authority to download the tracing data, generating an authorization message through the intelligent contract, and downloading the tracing data based on the authorization message.
In this embodiment, when the data query party has permission to download the source tracing data, the signature of the data query party needs to be checked, so as to further ensure the security of the source tracing data.
In an optional embodiment, the generating an authorization message by the smart contract, and downloading the tracing data based on the authorization message includes:
an NFT authorization model of the intelligent contract receives an authorization message sent by a data provider and writes the authorization message into the block chain;
verifying the signature of the data inquiring party based on the authorization message;
and when the verification is passed, the data inquirer downloads the source tracing data from the data storage server based on the authorization message.
Further, the method further comprises:
when the check tag fails, the NFT authorization model writes a deny authorization message into the blockchain.
And S16, when the data inquirer has no authority to download the tracing data, generating a refusal authorization message through the intelligent contract.
In other optional embodiments, the method further comprises:
and when the data inquirer has the authority to download the tracing data, the owner of the tracing data sends the tracing data to the data inquirer.
Further, after the downloading the tracing data based on the authorization message, the method further comprises:
comparing the hash value in the downloaded tracing data with the hash value stored on the corresponding tracing link;
when the hash value in the downloaded tracing data is completely consistent with the hash value stored on the corresponding tracing link, determining that the downloaded tracing data is correct;
and when the hash value in the downloaded tracing data is not completely consistent with the hash value stored on the corresponding tracing link, determining that the downloaded tracing data is abnormal.
In this embodiment, the data query party can acquire the tracing data through two ways, the first way is that when the tracing data has a confidential requirement, the owner of the tracing data directly sends the tracing data to the data owner when determining that the data query party has permission to download the tracing data, and the second way is that when the tracing data does not have the confidential requirement, the owner of the tracing data authorizes the data query party to download the tracing data from the data storage server, so that the security of the tracing data is further improved.
In summary, in the method for processing traceable data based on a blockchain according to this embodiment, the traceable link of the target object is created based on the original traceable data, the traceable link is deployed into the blockchain through an intelligent contract, a storage relationship between the traceable data and a provider of the traceable data is established, and the traceable data is stored by using the blockchain, so that the traceable data cannot be tampered once being linked up, and the security of the traceable data subsequently stored on the traceable link is improved. Analyzing a source tracing data storage request of a data provider to obtain an analysis result, sending the analysis result to an NFT generation model of the intelligent contract, generating target NFT data of the data provider and storing the data, packaging scattered data of the data provider into an integral body which can not be split in an NFT form, and performing credible storage on the source tracing data and the data provider, so that the positioning efficiency and the accuracy of a source tracing source of the source tracing data are improved. When the data inquirer has the authority to download the tracing data, an authorization message is generated through the intelligent contract, and under the authorization condition, the tracing data is downloaded based on the authorization message, so that the security of the tracing data is improved.
Example two
Fig. 2 is a structural diagram of a tracing data processing apparatus based on a block chain according to a second embodiment of the present invention.
In some embodiments, the blockchain-based tracing data processing apparatus 20 may include a plurality of functional modules composed of program code segments. The program codes of the respective program segments in the block chain based tracing data processing apparatus 20 may be stored in the memory of the electronic device and executed by the at least one processor to perform (see fig. 1 for details) the functions of the block chain based tracing data processing.
In this embodiment, the tracing data processing apparatus 20 based on the block chain may be divided into a plurality of functional modules according to the functions executed by the tracing data processing apparatus. The functional module may include: a receiving and creating module 201, a parsing module 202, a generating module 203, a judging module 204, a downloading module 205, a writing module 206 and a comparing module 207. The module referred to herein is a series of computer readable instruction segments stored in a memory that can be executed by at least one processor and that can perform a fixed function. In the present embodiment, the functions of the modules will be described in detail in the following embodiments.
The receiving and creating module 201 is configured to receive original tracing data of a target object, create a tracing link of the target object based on the original tracing data, and deploy the tracing link into a block chain through an intelligent contract, where the tracing link includes a tracing code.
In this embodiment, in the process of processing the source tracing data of the target object, a source tracing link may be created for the target object, so as to implement storage of the source tracing data of the target object, and the source tracing data is deployed into the blockchain through an intelligent contract.
In this embodiment, the target object may be a product, for example, a vaccine a, and a tracing link is created for the vaccine a, where the tracing link corresponds to a unique tracing code, and the tracing code is used to uniquely identify the target object.
In this embodiment, the intelligent contract provides functions of link certificate storage, data certificate storage, NFT data generation, NFT application, NFT authorization, data source tracing query, and the like of the tracing data, and the intelligent contract includes an NFT generation model, a data certificate storage model, an NFT application model, a data certificate storage model, and an NFT authorization model.
In an optional embodiment, the receiving and creating module 201 creating the traceback link of the target object based on the original traceback data includes:
identifying the original tracing data to obtain the node name and data field information of each tracing node of the target object and the data format of each data field information;
converting each tracing node of the target object into a corresponding tracing node of a tracing link, wherein the tracing node of the tracing link comprises a node name and data field information of the tracing node and a data format of each data field information;
converting the reference relationship between the tracing nodes into edges between the nodes in the corresponding tracing links, wherein the edges between the tracing nodes in the tracing links are used as the reference relationship between the tracing nodes in the tracing links;
and creating the tracing link of the target object according to the tracing node of the tracing link and the reference relationship between the tracing nodes in the tracing link.
In this embodiment, the original source tracing data includes node names and data field information of each source tracing node of the target object, and a data format of each data field information, and the original source data further includes source tracing data provider information of each source tracing node, original data characteristics, and other attribute information of the source tracing data.
In this embodiment, the traceability link of the target object is created according to the original traceability data, the traceability link is deployed into the blockchain through the intelligent contract, the evidence storing relationship between the traceability data and the traceability data provider is established, and the blockchain is used for storing the traceability data, so that the traceability data cannot be tampered once being uplinked, and the security of the traceability data subsequently stored on the traceability link is improved.
The parsing module 202 is configured to parse, in response to the received source data storage request of the data provider of the target object, the source data storage request to obtain a parsing result.
In this embodiment, when a data provider needs to store source tracing data of the target object, a client of the data provider sends a source tracing data storage request to a server, and the server analyzes the source tracing data storage request to obtain an analysis result.
In an optional embodiment, the parsing module 202 parses the source data evidence storage request, and obtaining a parsing result includes:
analyzing the tracing data evidence storing request to obtain a target tracing code and evidence storing data;
matching a target tracing link corresponding to the target tracing code from a preset database;
and sending the deposit evidence data to an intelligent contract, and analyzing the deposit evidence data by a data deposit evidence model of the intelligent contract according to a preset analysis standard to obtain an analysis result.
In this embodiment, a database may be pre-established, source tracing codes of source tracing links of all target objects are stored in the database, when a data provider sends a source tracing data evidence storing request, the source tracing data evidence storing request includes the target source tracing codes and evidence storing data, the target source tracing links can be quickly determined through the target source tracing codes, the target source tracing links correspond to preset analysis specifications, the evidence storing data is analyzed according to the preset analysis specifications, management of the later-continued evidence storing data is facilitated, and management efficiency of the evidence storing data is improved.
And the generating module 203 is configured to send the analysis result to the NFT generation model of the intelligent contract, generate target NFT data of the data provider, and store the target NFT data.
In this embodiment, when the parsing result is stored, the parsing result is sent to an NFT generation model of an intelligent contract, and NFT encapsulation is performed on the parsing result to obtain NFT data of the data provider.
In an optional embodiment, the sending, by the generating module 203, the parsing result to an NFT generating model of the intelligent contract, and generating and validating target NFT data of the data provider includes:
identifying the data type of each data field information in the analysis result;
when the data type of each data field information in the analysis result is recognized as text data, each data field information is sent to an NFT generation model of the intelligent contract; when the data type of each piece of data field information in the analysis result is identified not to be text data, calculating a hash value of each piece of data field information, and sending the hash value to an NFT generation model of the intelligent contract;
the NFT generation model of the intelligent contract generates the NFT identification code of the data provider, and fills the received data field information or the hash value to the corresponding position of the tracing node of the data provider according to the node name and the data field information of the tracing node of the data provider corresponding to the target tracing link and the data format of the data field information to obtain first NFT data;
filling information of the data provider in a field corresponding to the data provider to obtain second NFT data;
the NFT generation model of the intelligent contract packages the NFT identifier, the first NFT data and the second NFT data to generate target NFT data of the data provider;
and sending the target NFT data of the data provider to a data evidence storage model of the intelligent contract, and writing the target NFT data of the data provider into the block chain for evidence storage in the data evidence storage model.
In this embodiment, when the target NFT data of the data provider is encapsulated, the information of the data provider is bound, so that the target NFT data is more complete, and the management efficiency of the NFT data is improved.
In this embodiment, the NFT generation model in the intelligent contract packages received field information, hash values, information of data providers, and NFT identification codes of each data, and these scattered data are packaged as an integral non-detachable in an NFT form, when the tracing data is abnormal, the NFT identification code of the abnormal tracing data is obtained, and it is determined that the data source of the abnormal tracing data is the data provider corresponding to the NFT identification code, for example, in a vaccine logistics transportation link, an operator a provides shipment commodity quantity data, an operator B provides transportation environment data such as temperature and humidity during transportation, an operator C provides transportation vehicle and driver information, and finally, if the vaccine quantity is abnormal, the operator a can be quickly positioned, and the positioning efficiency and accuracy of the tracing source of the tracing data are improved, and in addition, because the target NFT data of each data provider is taken as an integral, the traceable data and the data provider are subjected to credible storage, the problem that the traceable data is unreliable due to tampering of the traceable data by the data provider is avoided, and the security of the traceable data is improved.
The determining module 204 is configured to determine whether the data querying party has an authority to download the tracing data when detecting a tracing data request for downloading the target object, where the request is sent by the data querying party.
In this embodiment, the request for downloading the traceable data of the target object refers to that the data querying party requests to read the encapsulated NFT data, and in order to ensure the security of the NFT data, it needs to be determined whether the data querying party has an authority to download the traceable data of the target object.
In an optional embodiment, the determining module 204 determines whether the data querying party has the right to download the tracing data includes:
analyzing a source tracing data request for downloading the target object, and acquiring an NFT (network file transfer) identification code of the source tracing data;
sending the NFT identification code to an NFT application model of an intelligent contract, generating a use application of the NFT data, and writing the use application of the NFT data into the block chain;
judging whether the use application of the NFT data is authorized or not;
when the use application of the NFT data obtains authorization, determining that the data inquirer has the authority to download the tracing data;
and when the NFT data use application is not authorized, determining that the data inquirer has no authority to download the tracing data.
In this embodiment, the NFT application model of the intelligent contract may record the application for using the NFT data according to a request of a data querying party for downloading the source data of the target object and an NFT identifier of the source data, and write the application for using the NFT data into the block chain, where an owner of the NFT data determines whether the application for using the NFT data is authorized, determines whether the data querying party has an authority to download the source data according to a determination result, and authorizes the data querying party to download the source data when the data querying party has the authority to download the source data.
Further, when detecting the request for inquiring the tracing data sent by the data inquiring party, obtaining the tracing code of the target object; inquiring a corresponding tracing link according to the tracing code, and matching evidence storage information of all tracing nodes on the tracing link; and sequencing the evidence storage information of all the tracing nodes according to a preset sequencing mode, and returning a sequencing result to the data inquiring party.
In this embodiment, the evidence storage information includes evidence storage records, such as the tracing code of the tracing link, the NFT identifier of each tracing node, and the use application of the NFT data.
In this embodiment, when the data querying party queries the link evidence storing information of the tracing data, all the evidence storing information of the target object can be rapidly queried through the tracing code of the tracing link of the tracing data without being authorized by the owning party, so that the tracing efficiency of the tracing data is improved.
A downloading module 205, configured to generate an authorization message through the intelligent contract when the data querying party has a right to download the tracing data, and download the tracing data based on the authorization message.
In this embodiment, when the data query party has the right to download the tracing data, the signature of the data query party needs to be checked, so as to further ensure the security of the tracing data.
In an optional embodiment, the downloading module 205 generates an authorization message through the smart contract, and downloading the tracing data based on the authorization message includes:
an NFT authorization model of the intelligent contract receives an authorization message sent by a data provider and writes the authorization message into the block chain;
verifying the signature of the data inquirer based on the authorization message;
and when the verification is passed, the data inquirer downloads the source tracing data from the data storage server based on the authorization message.
A writing module 206, configured to write, by the NFT authorization model, a denial authorization message into the block chain when the check tag fails.
Further, the generating module 203 is further configured to generate an authorization denial message through the intelligent contract when the data inquirer has no right to download the tracing data.
In other optional embodiments, when the data querying party has permission to download the tracing data, the owner of the tracing data sends the tracing data to the data querying party.
Further, after downloading the tracing data based on the authorization message, the comparing module 207 is configured to compare a hash value in the downloaded tracing data with a hash value stored on a corresponding tracing link; when the hash value in the downloaded tracing data is completely consistent with the hash value stored on the corresponding tracing link, determining that the downloaded tracing data is correct; and when the hash value in the downloaded tracing data is not completely consistent with the hash value stored on the corresponding tracing link, determining that the downloaded tracing data is abnormal.
In this embodiment, the data query party can acquire the tracing data through two ways, the first way is that when the tracing data has a confidential requirement, the owner of the tracing data directly sends the tracing data to the data owner when determining that the data query party has permission to download the tracing data, and the second way is that when the tracing data does not have the confidential requirement, the owner of the tracing data authorizes the data query party to download the tracing data from the data storage server, so that the security of the tracing data is further improved.
In summary, the tracing data processing apparatus based on the blockchain according to the embodiment of the present invention creates the tracing link of the target object based on the original tracing data, deploys the tracing link into the blockchain through the intelligent contract, establishes the evidence storing relationship between the tracing data and the provider of the tracing data, and uses the blockchain to store the tracing data, so that the tracing data cannot be tampered once being linked up, thereby improving the security of the tracing data subsequently stored on the tracing link. Analyzing a source tracing data storage request of a data provider to obtain an analysis result, sending the analysis result to an NFT generation model of the intelligent contract, generating target NFT data of the data provider and storing the data, packaging scattered data of the data provider into an integral body which can not be split in an NFT form, and performing credible storage on the source tracing data and the data provider, so that the positioning efficiency and the accuracy of a source tracing source of the source tracing data are improved. When the data inquirer has the authority to download the tracing data, an authorization message is generated through the intelligent contract, and under the authorization condition, the tracing data is downloaded based on the authorization message, so that the security of the tracing data is improved.
EXAMPLE III
Fig. 3 is a schematic structural diagram of an electronic device according to a third embodiment of the present invention. In the preferred embodiment of the present invention, the electronic device 3 comprises a memory 31, at least one processor 32, at least one communication bus 33 and a transceiver 34.
It will be appreciated by those skilled in the art that the configuration of the electronic device shown in fig. 3 does not constitute a limitation of the embodiment of the present invention, and may be a bus-type configuration or a star-type configuration, and the electronic device 3 may include more or less hardware or software than those shown in the figures, or different component arrangements.
In some embodiments, the electronic device 3 is an electronic device capable of automatically performing numerical calculation and/or information processing according to instructions set or stored in advance, and the hardware thereof includes but is not limited to a microprocessor, an application specific integrated circuit, a programmable gate array, a digital processor, an embedded device, and the like. The electronic device 3 may also include a client device, which includes, but is not limited to, any electronic product that can interact with a client through a keyboard, a mouse, a remote controller, a touch pad, or a voice control device, for example, a personal computer, a tablet computer, a smart phone, a digital camera, and the like.
It should be noted that the electronic device 3 is only an example, and other existing or future electronic products, such as those that can be adapted to the present invention, should also be included in the scope of the present invention, and are included herein by reference.
In some embodiments, the memory 31 is used for storing program codes and various data, such as the blockchain-based tracing data processing apparatus 20 installed in the electronic device 3, and realizes high-speed and automatic access to programs or data during the operation of the electronic device 3. The Memory 31 includes a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), a One-time Programmable Read-Only Memory (OTPROM), an electronically Erasable rewritable Read-Only Memory (Electrically-Erasable Programmable Read-Only Memory (EEPROM)), an optical Read-Only disk (CD-ROM) or other optical disk Memory, a magnetic disk Memory, a tape Memory, or any other medium readable by a computer capable of carrying or storing data.
In some embodiments, the at least one processor 32 may be composed of an integrated circuit, for example, a single packaged integrated circuit, or may be composed of a plurality of integrated circuits packaged with the same or different functions, including one or more Central Processing Units (CPUs), microprocessors, digital Processing chips, graphics processors, and combinations of various control chips. The at least one processor 32 is a Control Unit (Control Unit) of the electronic device 3, connects various components of the whole electronic device 3 by using various interfaces and lines, and executes various functions of the electronic device 3 and processes data by running or executing programs or modules stored in the memory 31 and calling data stored in the memory 31.
In some embodiments, the at least one communication bus 33 is arranged to enable connection communication between the memory 31 and the at least one processor 32 or the like.
Although not shown, the electronic device 3 may further include a power supply (such as a battery) for supplying power to each component, and optionally, the power supply may be logically connected to the at least one processor 32 through a power management device, so as to implement functions of managing charging, discharging, and power consumption through the power management device. The power supply may also include any component of one or more dc or ac power sources, recharging devices, power failure detection circuitry, power converters or inverters, power status indicators, and the like. The electronic device 3 may further include various sensors, a bluetooth module, a Wi-Fi module, and the like, which are not described herein again.
It is to be understood that the described embodiments are for purposes of illustration only and that the scope of the appended claims is not limited to such structures.
The integrated unit implemented in the form of a software functional module may be stored in a computer-readable storage medium. The software functional module is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, an electronic device, or a network device) or a processor (processor) to execute parts of the methods according to the embodiments of the present invention.
In a further embodiment, in conjunction with fig. 2, the at least one processor 32 may execute an operating device of the electronic device 3 and various installed application programs (such as the block chain based tracing data processing device 20), program codes, and the like, for example, the above modules.
The memory 31 has program code stored therein, and the at least one processor 32 can call the program code stored in the memory 31 to perform related functions. For example, the modules illustrated in fig. 2 are program codes stored in the memory 31 and executed by the at least one processor 32, so as to implement the functions of the modules for the purpose of block chain-based traceable data processing.
Illustratively, the program code may be divided into one or more modules/units, which are stored in the memory 31 and executed by the processor 32 to accomplish the present application. The one or more modules/units may be a series of computer readable instruction segments capable of performing certain functions, which are used for describing the execution process of the program code in the electronic device 3. For example, the program code may be partitioned into a receive and create module 201, a parse module 202, a generate module 203, a determine module 204, a download module 205, a write module 206, and a compare module 207.
In one embodiment of the present invention, the memory 31 stores a plurality of computer readable instructions that are executed by the at least one processor 32 to implement functions of blockchain based traceback data processing.
Specifically, the at least one processor 32 may refer to the description of the relevant steps in the embodiment corresponding to fig. 1, and details are not repeated here.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and other divisions may be realized in practice.
The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one position, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional module.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is obvious that the word "comprising" does not exclude other elements or that the singular does not exclude the plural. A plurality of units or means recited in the present invention may also be implemented by one unit or means through software or hardware. The terms first, second, etc. are used to denote names, but not any particular order.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A tracing data processing method based on a block chain is characterized by comprising the following steps:
the method comprises the steps of receiving original tracing data of a target object, creating a tracing link of the target object based on the original tracing data, and deploying the tracing link into a block chain through an intelligent contract, wherein the tracing link comprises a tracing code;
responding to a received source tracing data evidence storing request of a data provider of the target object, and analyzing the source tracing data evidence storing request to obtain an analysis result;
sending the analysis result to an NFT generation model of the intelligent contract, generating target NFT data of the data provider and storing the target NFT data;
when a tracing data request for downloading the target object sent by a data inquiry party is detected, judging whether the data inquiry party has the authority to download the tracing data;
and when the data inquirer has the authority to download the tracing data, generating an authorization message through the intelligent contract, and downloading the tracing data based on the authorization message.
2. The block chain-based tracing data processing method according to claim 1, wherein the sending the parsing result to the NFT generation model of the intelligent contract, and the generating and validating target NFT data of the data provider comprises:
identifying the data type of each data field information in the analysis result;
when the data type of each data field information in the analysis result is recognized as text data, each data field information is sent to an NFT generation model of the intelligent contract; when the data type of each piece of data field information in the analysis result is identified not to be text data, calculating a hash value of each piece of data field information, and sending the hash value to an NFT generation model of the intelligent contract;
the NFT generation model of the intelligent contract generates the NFT identification code of the data provider, and fills the received data field information or the hash value to the corresponding position of the tracing node of the data provider according to the node name and the data field information of the tracing node of the data provider corresponding to the target tracing link and the data format of the data field information to obtain first NFT data;
filling information of the data provider in a field corresponding to the data provider to obtain second NFT data;
the NFT generation model of the intelligent contract packages the NFT identifier, the first NFT data and the second NFT data to generate target NFT data of the data provider;
and sending the target NFT data of the data provider to a data evidence storage model of the intelligent contract, and writing the target NFT data of the data provider into the block chain for evidence storage in the data evidence storage model.
3. The blockchain-based traceback data processing method of claim 1, wherein the creating a traceback link for the target object based on the raw traceback data comprises:
identifying the original tracing data to obtain node names and data field information of all tracing nodes of the target object and a data format of each data field information;
converting each tracing node of the target object into a corresponding tracing node of a tracing link, wherein the tracing node of the tracing link comprises a node name and data field information of the tracing node and a data format of each data field information;
converting the reference relationship between the tracing nodes into edges between the nodes in the corresponding tracing links, wherein the edges between the tracing nodes in the tracing links are used as the reference relationship between the tracing nodes in the tracing links;
and creating the tracing link of the target object according to the tracing node of the tracing link and the reference relationship between the tracing nodes in the tracing link.
4. The block chain-based tracing data processing method of claim 1, wherein said parsing said tracing data evidence storage request to obtain a parsing result comprises:
analyzing the tracing data evidence storing request to obtain a target tracing code and evidence storing data;
matching a target tracing link corresponding to the target tracing code from a preset database;
and sending the deposit evidence data to an intelligent contract, and analyzing the deposit evidence data by a data deposit evidence model of the intelligent contract according to a preset analysis standard to obtain an analysis result.
5. The method for processing traceable data based on a blockchain according to claim 1, wherein the determining whether the data inquirer has permission to download the traceable data comprises:
analyzing a source tracing data request for downloading the target object, and acquiring an NFT (network file transfer) identification code of the source tracing data;
sending the NFT identification code to an NFT application model of an intelligent contract, generating a use application of the NFT data, and writing the use application of the NFT data into the block chain;
judging whether the use application of the NFT data is authorized or not;
when the NFT data use application obtains authorization, determining that the data inquirer has the authority to download the tracing data;
and when the NFT data use application is not authorized, determining that the data inquirer has no authority to download the tracing data.
6. The blockchain-based tracing data processing method according to claim 1, wherein the generating an authorization message through the intelligent contract and downloading the tracing data based on the authorization message includes:
an NFT authorization model of the intelligent contract receives an authorization message sent by a data provider and writes the authorization message into the block chain;
verifying the signature of the data inquirer based on the authorization message;
and when the verification is passed, the data inquirer downloads the source tracing data from the data storage server based on the authorization message.
7. The blockchain-based traceable data processing method according to any one of claims 1 to 6, further comprising:
when detecting the request for inquiring the tracing data sent by the data inquirer, acquiring the tracing code of the target object;
inquiring a corresponding tracing link according to the tracing code, and matching evidence storage information of all tracing nodes on the tracing link;
and sequencing the evidence storage information of all the tracing nodes according to a preset sequencing mode, and returning a sequencing result to the data inquiring party.
8. A block chain based traceable data processing apparatus, the apparatus comprising:
the system comprises a receiving and creating module, a source tracing module and a source tracing module, wherein the receiving and creating module is used for receiving original source tracing data of a target object, creating a source tracing link of the target object based on the original source tracing data, and deploying the source tracing link into a block chain through an intelligent contract, wherein the source tracing link comprises a source tracing code;
the analysis module is used for responding to the received source tracing data evidence storing request of the data provider of the target object, analyzing the source tracing data evidence storing request and obtaining an analysis result;
the generating module is used for sending the analysis result to an NFT generating model of the intelligent contract, generating target NFT data of the data provider and storing the target NFT data;
the judging module is used for judging whether the data inquiry party has the authority to download the tracing data or not when detecting a tracing data request for downloading the target object, which is sent by the data inquiry party;
and the downloading module is used for generating an authorization message through the intelligent contract when the data inquirer has the authority to download the tracing data, and downloading the tracing data based on the authorization message.
9. An electronic device, characterized in that the electronic device comprises a processor and a memory, and the processor is configured to implement the block chain based tracing data processing method according to any one of claims 1 to 7 when executing the computer program stored in the memory.
10. A computer-readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the method for processing traceable data based on blockchain according to any one of claims 1 to 7.
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| CN115375335A (en) * | 2022-10-24 | 2022-11-22 | 浙江省标准化研究院(金砖国家标准化(浙江)研究中心、浙江省物品编码中心) | Object tracing method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115375335A (en) * | 2022-10-24 | 2022-11-22 | 浙江省标准化研究院(金砖国家标准化(浙江)研究中心、浙江省物品编码中心) | Object tracing method and device, electronic equipment and storage medium |
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