CN112613946A - Transaction platform and transaction method based on Ether house motor data set file - Google Patents
Transaction platform and transaction method based on Ether house motor data set file Download PDFInfo
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Abstract
The invention discloses a motor data set file transaction platform and a transaction method based on an Ethengfang, belongs to the field of motor data set file transaction, and aims to solve the problem that no safe motor data transaction platform exists in the prior art. The system comprises an object unit, a data processing unit and a data processing unit, wherein the object unit receives supplier data, and the supplier data comprises supplier user information, a motor data set file, copyright information and a user public key; receiving demander data; the sharing platform unit processes the received supplier data and carries out digital signature; matching the requirement of the demander with the data of the demander and authorization check to perform data transaction; the data transmission unit is used for establishing cross-link transmission between the shared platform unit and the database unit; the database unit is used for storing supplier data, generating copyright information and returning the copyright information; and inquiring corresponding supplier data according to the requirement of the demander and uploading the supplier data to the data transmission unit. The invention improves the safety of data transaction and reduces the transaction risk.
Description
Technical Field
The invention relates to the field of motor data set file transaction, in particular to a motor data set file transaction platform and a motor data set file transaction method based on an Etheng.
Background
Ethereum (Ethereum) is a decentralized application platform based on the blockchain technology, and the network architecture is particularly complete and highly robust, and can program the blockchain, allowing the user to customize complex operations. An Ethernet Virtual Machine (EVM) is an operating environment of an intelligent contract in an ethernet workshop, is also a core of the ethernet workshop and is completely pictorial, so that the EVM can execute program coding of any complex algorithm. In addition, the ether house blockchain database is updated and maintained by each node in the network, and each node can execute the same instruction by running the ether house virtual machine, so that the consistency of the blockchain is ensured. The EtherFang continues the advantages of the block chain system and has the characteristics of decentralization, tamper resistance, traceability, programmability and the like.
In recent years, with the continuous development of information technology and the continuous improvement of the technology in the field of motors, motor data and technology obtained by scientific research of enterprises, universities and colleges show geometric-grade numerical growth, but at the same time, due to lack of trust among different organizations, the data obtained among the different organizations cannot be exchanged, so that the problems of equipment islands and data islands exist among different vertical internet of things fields, and due to lack of cross-domain trust, the IoT equipment and the data in different trust domains cannot be conveniently accessed with each other. The effectiveness of building and maintaining a cross-domain trust system for a blockchain has been verified by practical applications, such as cross-bank settlement based on the blockchain, so that a distributed security mechanism based on an ethernet is beneficial to breaking through internet of things devices and data islands. The data exchange can greatly improve the social production efficiency and the value of the data, and thus, a data trading market of the motor is generated.
At present, there is no platform for providing safe transaction for motor data, and the existing platforms can be divided into three categories: the first is as a third party medium in the transaction process, which mainly plays a role of establishing association between a data provider and a data demander and cannot provide security protection for data provided by the data provider; the second transaction platform is mainly used for cleaning, processing and processing data for a data demander, and the platform usually has a large number of professional technicians, establishes contact with a data provider and a technology provider and provides services for the data demander by processing the data; the third is that the data provider establishes contact with the data demander directly, which can provide effective protection for the security of the data and is easy to follow up once the data is revealed, but because the transaction mode is one-to-one, the data provider has the problem that the data cannot generate huge value because of narrow audience.
The first two types of data transaction platforms do not use special technical means to protect motor data, so that the problem of more or less safe data storage exists, once data is leaked, the leaked data cannot be traced, and the problem of difficulty in tracing responsibility is faced, so that resource loss and economic loss of a data provider can be caused.
Disclosure of Invention
In order to solve the problems, the invention provides an electric motor data set file transaction platform and a transaction method based on an Etheng, and provides a platform and a transaction method aiming at electric motor data safe transaction, so that the safety of data transaction is improved, and the transaction risk is reduced.
The invention provides a trading platform based on an Etherhouse motor data set file in a first aspect, which comprises:
the system comprises an object unit, a data processing unit and a data processing unit, wherein the object unit receives supplier data, and the supplier data comprises supplier user information, a motor data set file, copyright information and a user public key; receiving demander data;
the sharing platform unit processes the received supplier data, performs digital signature and performs digital signature; matching the requirement of the demander with the data of the demander, authorization check and authorization check to perform data transaction;
the data transmission unit is used for establishing cross-link transmission between the shared platform unit and the database unit;
the database unit is used for storing supplier data, generating copyright information and returning the copyright information; and inquiring corresponding supplier data according to the requirement of the demander and uploading the supplier data to the data transmission unit.
Further, the object unit includes:
the supplier data receiving module is used for receiving supplier data;
and the demander data receiving module is used for receiving the demander demand information.
Further, the shared platform unit includes:
the duplication checking module is used for checking the supplier data to obtain the supplier data duplication checking information;
the supplier transaction diary creation module is used for creating a supplier transaction diary, generating a new block, packaging supplier data, a transaction timestamp, a transaction hash value and a block chain address, and performing data signature on the packaged data by using a public key;
the display module is used for displaying the supplier data introduction and the copyright information for the selection of the supplier;
the demander transaction diary creation module is used for checking whether the copyright information of the corresponding supplier data is authorized according to the demander requirement, and if the copyright information is authorized, sending a downloading instruction; if not, initiating an authorized transaction, inquiring a purchase result, if the purchase is successful, creating an acquirer transaction diary, and storing the acquirer transaction diary in a block;
and the receiving module is used for receiving the fed back data to be downloaded, downloading the data to be downloaded to the user terminal and waiting for the downloading of the demander.
The second aspect of the invention provides a motor data set file transaction method based on an Ether house, which is realized based on a click data set file transaction platform based on the Ether house in the first aspect of the invention, and comprises the following steps:
receiving supplier data, wherein the supplier data comprises supplier user information, a motor data set file, copyright information and a user public key; receiving demander data;
processing the received supplier data and performing digital signature; matching the requirement of the demander with the data of the demander and authorization check to perform data transaction;
establishing cross-link transmission between the shared platform unit and the database unit;
storing supplier data, generating copyright information and returning the copyright information; and inquiring corresponding supplier data according to the requirement of the demander and uploading the supplier data to the data transmission unit.
Further, the method for processing the received supplier data and performing digital signature comprises the following steps:
checking supplier data to obtain supplier data duplicate checking information;
creating a supplier transaction diary and generating a new block, packaging supplier data, a transaction timestamp, a transaction hash value and a block chain address, and performing data signature on the packaged data by using a public key;
showing the supplier data brief introduction and copyright information, and the supplier selects and authorizes;
the matching of the acquirer requirement with the acquirer data and authorization check includes the steps of:
checking whether the copyright information of the corresponding supplier data is authorized according to the requirement of the demander, and if so, sending a downloading instruction; if not, initiating an authorized transaction, inquiring a purchase result, if the purchase is successful, creating an acquirer transaction diary, and storing the acquirer transaction diary in a block;
and receiving the fed back data to be downloaded, downloading the data to be downloaded to a user terminal, and waiting for the downloading of the demander.
Further, the method for establishing cross-chain transmission between the shared platform unit and the database unit comprises the following steps:
transmitting the signed packed data to a database unit, and monitoring a downloading instruction; verifying the supplier data signature and decrypting.
Further, the data signing method comprises the following steps:
the supplier obtains the data set content, SHA hash is carried out on the data set content to generate an integrity verification hash string, and the data set content is digitally signed according to a private key provided by the supplier user to generate a data set content B which is signed and encrypted;
and transmitting the signed and encrypted data set content B to a alliance chain node of the database unit for storage in a cross-chain manner, returning a storage address after storage, packaging the storage address, a timestamp, copyright information, copyright attribution and the like, storing the packaged storage address, the timestamp, the copyright information, the copyright attribution and the like into a public chain in the sharing platform unit, and displaying the data set in the sharing platform unit to make a copyright and give authorization.
Further, the method for checking whether the copyright information of the corresponding supplier data is authorized means checking whether the user authorization information can correspond to the platform database.
Further, the authorization information generation method includes:
after the data set with the number N is determined by the nth purchase transaction, acquiring basic user information Vn, copyright authorization information Mn and a transaction diary Dn;
combining the user information Vn and the copyright authorization information Mn and signing to manufacture an authorization message Pn;
when n is 1, the transaction diary D1 is stored as special case verification information a 1;
when N is greater than 1, selecting the authorization Pm (m < N) and the transaction diary Dn of the data set with the number N at the previous part or all of time as verification information An to be stored;
and combining the N, the authorization message Pn and the verification information An into a subfile Cn of An authorization file generated when the N product is purchased for the nth time, and generating the authorization file by combining the subfile Cn with the number N.
Further, the specific steps of storing supplier data, generating copyright information, and returning the copyright information include:
the signed data set is packed and sent to a plurality of nodes participating in accounting in the alliance chain of the database unit, accounting storage of the data is carried out, and the data set is broadcasted to a node group of the alliance chain for safety storage after the accounting storage is finished;
where the data economy storage nodes within the platform also participate in the storage and send the data set back to the copyright owner.
As described above, the present invention has the following advantages compared with the prior art:
1. the motor data which is long-transmitted by a data supplier is protected by the digital signature, so that the phenomenon that other people forge an authorized file to use a copyright arbitrarily can be prevented;
2. the storage safety is improved, and once data is leaked, the copyright purchasing behavior can be tracked;
3. providing a strong proof of copyright certification. The authorization file generated by the invention for the product with the authorization number n not only contains the encryption permission information for the authorization information of the product, but also contains the encryption information used for tracing the previous authorization file and the copyright, so that multiple verifications can be carried out by utilizing the information of a plurality of transaction parties of the commodity authorization transaction, the information stored in the alliance chain node and the information owned by the copyright (the complete transaction diary chain is obtained by the copyright party) to determine whether the authorization file is from a legal way or not, and the authorization file is not forged and falsified. Each federation chain node in the block chain holds licensing information for all authorized products, as do all blocks of the family at the transaction purchaser. The method has the capability of providing a safer and more reliable authorization scheme, and can reduce the search of products to an authorization center server as much as possible and increase the flow.
Drawings
FIG. 1 is a schematic diagram of the overall organization of a transaction platform according to an embodiment of the invention;
FIG. 2 is a flow chart of a supplier publishing data information in accordance with an embodiment of the present invention;
FIG. 3 is a flow chart of an embodiment of the present invention for acquirer purchase data information;
FIG. 4 is a schematic diagram of a hierarchical architecture of a transaction platform according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a data signature process according to an embodiment of the present invention;
FIG. 6 is a block diagram illustrating a method for generating a data authorization file according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a data storage process according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
The first aspect of the present invention provides a trading platform based on an ethernet workshop motor data set file, as shown in fig. 1, including:
an object unit 101, the object unit comprising:
the supplier data receiving module is used for receiving supplier data, and the supplier data comprises supplier user information, a motor data set file, copyright information and a user public key;
and the demander data receiving module is used for receiving the demander demand information and acquiring the target data and the user information of the demander.
The sharing platform unit 102 is used for processing the received supplier data, performing digital signature and performing digital signature; matching the requirement of the demander with the data of the demander, authorization check and authorization check to perform data transaction;
the shared platform unit includes:
the duplication checking module is used for checking the supplier data to obtain the supplier data duplication checking information;
the supplier transaction diary creation module is used for creating a supplier transaction diary, generating a new block, packaging supplier data, a transaction timestamp, a transaction hash value and a block chain address, and performing data signature on the packaged data by using a public key;
the display module is used for displaying the supplier data introduction and the copyright information for the selection of the supplier;
the demander transaction diary creation module is used for checking whether the copyright information of the corresponding supplier data is authorized according to the demander requirement, and if the copyright information is authorized, sending a downloading instruction; if not, initiating an authorized transaction, inquiring a purchase result, if the purchase is successful, creating an acquirer transaction diary, and storing the acquirer transaction diary in a block;
and the receiving module is used for receiving the fed back data to be downloaded, downloading the data to be downloaded to the user terminal and waiting for the downloading of the demander.
A data transmission unit 103 for establishing cross-link transmission between the shared platform unit and the database unit;
the database unit 104 is used for storing supplier data, generating copyright information and returning the copyright information; and inquiring corresponding supplier data according to the requirement of the demander and uploading the supplier data to the data transmission unit.
The supplier publishing data flow is shown in fig. 2:
a user A logs in a platform unit to release a large amount of motor data and attaches a copyright signature to the data of the user A, a sharing platform unit firstly performs duplicate checking operation to inquire whether the data release exists on the platform or not, if so, data storage failure information is returned to indicate that the copyright is refuted back;
if no repeated data is confirmed, user information, data file content and user public key information are collected in the user module and transmitted to the sharing platform module together, a transaction diary is created on the public chain, a new block is generated, and a timestamp, a hash value and the like are packaged and transmitted to the data transmission module for data signature and then transmitted to the database module on the alliance chain for storage.
And (4) returning copyright information, storing a plurality of items of information such as time stamps and hash values, and taking the information as a new data product hanging platform.
The acquirer purchase data flow is shown in FIG. 3:
a user reads needed motor data introduction in a data sharing platform unit, a downloading request is initiated for interested data, a module in an object unit starts to collect user information and transaction information and integrates the user information and the transaction information into an information stream, and the information stream is sent to the data sharing platform to inquire whether the user purchases or owns copyright authorization of the data;
if not, initiating a transaction, granting copyright authorization to the user data set after the transaction, creating a transaction diary and a block, returning back and initiating a download request again; if yes, initiating a data downloading event.
After monitoring a data downloading event, the data transmission unit extracts a required data hash value, searches for data in the data hash value, transmits the data to the data transmission unit for signature verification and decryption after searching, uploads the data to the sharing platform unit to wait for downloading by a user, and the motor data realizes transparent equal sharing interaction on the platform in the whole process.
Based on the motor data sharing platform model described in this embodiment, analysis is performed through a layered architecture of the motor data sharing platform model based on an ethernet, where the sharing platform model includes a management layer, a control layer, and a data layer, as shown in fig. 4:
in the layered architecture, the management layer can be subdivided into a presentation layer and a service layer:
a presentation layer: the layer is positioned at the topmost end of the whole model architecture and is responsible for providing motor data sharing service facing a PC (personal computer) end to a user in a visual mode.
And (3) a service layer: the development of the service layer is between the expression layer and the contract layer according to the design ideas of interface-oriented programming and high-cohesion low-coupling. This layer is responsible for providing the presentation layer with the corresponding service interfaces while interacting with the functions defined by the contract layer.
The control layer can be divided into a contract layer and a block chain layer:
and (3) contract layer: various preset intelligent contracts are arranged in the contract layer, and when the contracts are triggered, event responses are sent to the block chain layer, and meanwhile, events can be returned to the service layer.
Cross-chain transport layer: the cross-chain transport layer listens for events from the contract layer, undertakes the tasks of sending and receiving data to and from the downstream public or federation chain, and at the same time bears the mission of data signing and decrypting data signing.
The data layer is mainly a block chain layer: the block chain layer comprises a public chain and a alliance chain, wherein the public chain stores some simple data, and the alliance chain stores a large data set after signature and has a data searching function.
The second aspect of the invention provides a motor data set file transaction method based on an Ether house, which is realized based on a click data set file transaction platform based on the Ether house in the first aspect of the invention, and comprises the following steps:
s1, receiving supplier data, wherein the supplier data comprises supplier user information, motor data set files, copyright information and user public keys;
receiving demander data, and acquiring a target data hash and user information of a demander request when the demander initiates a data set downloading request;
s2, processing the received supplier data and performing digital signature; matching the requirement of the demander with the data of the demander and authorization check to perform data transaction;
the method for processing the received supplier data and performing digital signature comprises the following steps:
s211, checking supplier data to obtain supplier data duplicate checking information;
s212, creating a supplier transaction diary and generating a new block, packaging supplier data, a transaction timestamp, a transaction hash value and a block chain address, and performing data signature on the packaged data by using a public key;
as shown in fig. 5, the method for data signature according to this embodiment includes:
a supplier obtains the data set content, SHA hash is carried out on the data set content to generate an integrity verification hash string L, and the data set content is digitally signed according to a private key provided by a supplier user to generate a signed and encrypted data set content B;
the signed and encrypted data set content B is transmitted to a federation chain node of a database unit in a cross-chain manner for storage, the federation chain only has a file-existing query right to an external visitor and does not have a read right, namely other third parties can only carry out limited query through an API opened by the federation chain, and compared with the closing of an IPFS, the embodiment can query and ensure the security of data;
and returning the storage address after storage, packaging the storage address, the timestamp, the copyright information, the copyright attribution and the like, storing the packaged storage address, the timestamp, the copyright information, the copyright attribution and the like into a public chain in the sharing platform unit, and displaying the data set in the sharing platform unit to make the copyright and give authorization.
In the embodiment, the motor data uploaded by a data uploading person is protected by using a digital signature, and a digital signature mechanism is used as one of means for guaranteeing network information security, so that the problems of counterfeiting, repudiation, impersonation and tampering can be solved. One of the purposes of digital signatures is to replace traditional manual signatures and seals in a network environment, and has important functions of anti-spoofing (counterfeiting), identity authentication, anti-tampering (integrity of anti-destruction information), anti-replay, anti-repudiation, confidentiality (confidentiality) and the like. Secondly, when an authorization for copyright transaction is added, a device node for implementing authorization generates a blockchain data file, wherein the etherhouse blockchain data file comprises encrypted information of a data copyright corresponding to the current authorization, a transaction number of the transaction, a hash value generated by a transaction diary, a transaction timestamp, a user account, a copyright number of a purchased data set and authorization of partial or all authorized transactions before authorization. According to the rule of the product numbers in the block chain data file, the time of generating at least one product number in the received block chain data file is later than the time of generating all the product numbers in the original block chain data file, namely the latest timestamp is later than the old timestamp, and then the received block chain data file is adopted as the block chain data file.
S213, showing the data introduction and copyright information of the supplier, and selecting and authorizing the supplier and the demander;
the matching of the acquirer requirement with the acquirer data and authorization check includes the steps of:
s221, checking whether the copyright information of the corresponding supplier data is authorized according to the demand of the demander, and if so, sending a downloading instruction; if not, initiating an authorized transaction, inquiring a purchase result, if the purchase is successful, creating an acquirer transaction diary, and storing the acquirer transaction diary in a block;
when the data set purchase transaction is confirmed, a datagram 1 is generated, which comprises a transaction number of the transaction, a hash value generated by a transaction diary, a transaction timestamp, a user account, a copyright number of the purchased data set, a hash value of an authorization file of the user about the data set, and an address in a federation chain of the data set purchased by the user.
Datagram 1:
the method for checking whether the copyright information of the corresponding supplier data is authorized refers to checking whether the user authorization information can correspond to the platform database.
As shown in fig. 6, the authorization information generating method includes:
after the data set with the number N is determined by the nth purchase transaction, acquiring basic user information Vn, copyright authorization information Mn and a transaction diary Dn;
the user information Vn and the copyright authorization information Mn are combined and signed to produce an authorization message Pn, that is, a datagram integrating the user information and the copyright authorization information, and the format is as follows:
| user information | The user copyright authorization information |
The two pieces of information are combined to form an authorization message for the user, and when the user is queried, whether the user is authorized or not can be further determined through the user information and the user copyright authorization information.
When n is 1, the transaction diary D1 is stored as special case verification information a 1;
when N is greater than 1, selecting the authorization Pm (m < N) and the transaction diary Dn of the data set with the number N at the previous part or all of time as verification information An to be stored;
and combining the N, the authorization message Pn and the verification information An into Cn, and generating An authorization file by combining the Cn, the authorization message Pn and the verification information An with the serial number N.
After the data set with the serial number N is determined by the nth purchase transaction, the authorization file is connected with An authorization message Pn which is synthesized and encrypted by using N and N, namely An information section for determining that the user is authorized legally, and then connected with verification information An, wherein the information section is used for ensuring that the Pn data report is a correct and legal information section. Namely, the N-time purchase information of the N products is combined with Pn and An to form the authorization file. That is Cn can be viewed as a subfile of the authorization file generated at the nth purchase of the N product.
The authorization file format (e.g., the authorization file formed by Cn + N) represented by the subfile is shown in the following table:
| N | Cn |
in the highest database, the storage information about N products can be viewed as the following structure:
| N | C1 |
| N | C2 |
| N | C3 |
| N | ... |
| N | Cn |
s222, receiving the fed back data to be downloaded, downloading the user-needing end, and waiting for the user-needing end to download.
S3, establishing cross-chain transmission between the shared platform unit and the database unit, specifically including:
transmitting the signed packed data to a database unit, and monitoring a downloading instruction; verifying the supplier data signature and decrypting.
S4, storing supplier data, generating copyright information and returning the copyright information; and inquiring corresponding supplier data according to the requirement of the demander and uploading the supplier data to the data transmission unit.
When the data set is successfully stored in a cross-link mode and appends the copyright, a datagram 2 is returned, wherein the datagram comprises the recorded copyright number, copyright detail hash, recording timestamp, hash value of the data set after SHA hash, the number of the data set, the copyright attribution account address of the data set and the storage position of the data set in the alliance chain.
Datagram 2:
as shown in fig. 7, the specific steps of storing supplier data, generating copyright information, and returning the copyright information include:
s41, the signed data set is packaged and sent to a plurality of nodes participating in accounting in the alliance chain of the database unit, accounting storage of data is carried out, and the data set is broadcasted to a node group of the alliance chain for safety storage after the accounting storage is finished;
s42, where the data economy storage node within the platform also participates in the storage and sends the data set back to the copyright owner.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A transaction platform based on an Ether house motor data set file, comprising:
the system comprises an object unit, a data processing unit and a data processing unit, wherein the object unit receives supplier data, and the supplier data comprises supplier user information, a motor data set file, copyright information and a user public key; receiving demander data;
the sharing platform unit processes the received supplier data and carries out digital signature; matching the requirement of the demander with the data of the demander and authorization check to perform data transaction;
the data transmission unit is used for establishing cross-link transmission between the shared platform unit and the database unit;
the database unit is used for storing supplier data, generating copyright information and returning the copyright information; and inquiring corresponding supplier data according to the requirement of the demander and uploading the supplier data to the data transmission unit.
2. The Etherhouse-based electromechanical dataset file trading platform of claim 1, wherein the object unit comprises:
the supplier data receiving module is used for receiving supplier data;
and the demander data receiving module is used for receiving the demander demand information.
3. The Etherhouse-based electromechanical dataset file trading platform of claim 2, wherein said shared platform unit comprises:
the duplication checking module is used for checking the supplier data to obtain the supplier data duplication checking information;
the supplier transaction diary creation module is used for creating a supplier transaction diary, generating a new block, packaging supplier data, a transaction timestamp, a transaction hash value and a block chain address, and performing data signature on the packaged data by using a public key;
the display module is used for displaying the supplier data introduction and the copyright information for the selection of the supplier;
the demander transaction diary creation module is used for checking whether the copyright information of the corresponding supplier data is authorized according to the demander requirement, and if the copyright information is authorized, sending a downloading instruction; if not, initiating an authorized transaction, inquiring a purchase result, if the purchase is successful, creating an acquirer transaction diary, and storing the acquirer transaction diary in a block;
and the receiving module is used for receiving the fed back data to be downloaded, downloading the data to be downloaded to the user terminal and waiting for the downloading of the demander.
4. An electric machine data set file transaction method based on an Etherhouse, which is realized based on any claim of claims 1 to 4, and is characterized by comprising the following steps:
receiving supplier data, wherein the supplier data comprises supplier user information, a motor data set file, copyright information and a user public key; receiving demander data;
processing the received supplier data and performing digital signature; matching the requirement of the demander with the data of the demander and authorization check to perform data transaction;
establishing cross-link transmission between the shared platform unit and the database unit;
storing supplier data, generating copyright information and returning the copyright information; and inquiring corresponding supplier data according to the requirement of the demander and uploading the supplier data to the data transmission unit.
5. The Etherhouse-based electromechanical dataset file transaction method of claim 4, wherein said method of processing received donor data and digitally signing same comprises the steps of:
checking supplier data to obtain supplier data duplicate checking information;
creating a supplier transaction diary and generating a new block, packaging supplier data, a transaction timestamp, a transaction hash value and a block chain address, and performing data signature on the packaged data by using a public key;
showing the supplier data brief introduction and copyright information, and the supplier selects and authorizes;
the matching of the acquirer requirement with the acquirer data and authorization check includes the steps of:
checking whether the copyright information of the corresponding supplier data is authorized according to the requirement of the demander, and if so, sending a downloading instruction; if not, initiating an authorized transaction, inquiring a purchase result, if the purchase is successful, creating an acquirer transaction diary, and storing the acquirer transaction diary in a block;
and receiving the fed back data to be downloaded, downloading the data to be downloaded to a user terminal, and waiting for the downloading of the demander.
6. The Etherhouse-based motor data set file transaction method of claim 5,
the method for establishing cross-chain transmission between the shared platform unit and the database unit comprises the following steps:
transmitting the signed packed data to a database unit, and monitoring a downloading instruction; verifying the supplier data signature and decrypting.
7. The Etherhouse-based electromechanical dataset file transaction method according to claim 5, wherein said data signature method comprises:
the supplier obtains the data set content, SHA hash is carried out on the data set content to generate an integrity verification hash string, and the data set content is digitally signed according to a private key provided by the supplier user to generate a data set content B which is signed and encrypted;
and transmitting the signed and encrypted data set content B to a alliance chain node of the database unit for storage in a cross-chain manner, returning a storage address after storage, packaging the storage address, a timestamp, copyright information, copyright attribution and the like, storing the packaged storage address, the timestamp, the copyright information, the copyright attribution and the like into a public chain in the sharing platform unit, and displaying the data set in the sharing platform unit to make a copyright and give authorization.
8. The Etherhouse-based motor data set file transaction method according to claim 5, wherein said method of verifying if copyright information of the corresponding supplier data is authorized is to verify if user authorization information can correspond to the platform database.
9. The Etherhouse-based motor data set file transaction method according to claim 8, wherein said authorization information generation method comprises:
after the data set with the number N is determined by the nth purchase transaction, acquiring basic user information Vn, copyright authorization information Mn and a transaction diary Dn;
combining the user information Vn and the copyright authorization information Mn and signing to manufacture an authorization message Pn;
when n is 1, the transaction diary D1 is stored as special case verification information a 1;
when N is greater than 1, selecting the authorization Pm (m < N) and the transaction diary Dn of the data set with the number N at the previous part or all of time as verification information An to be stored;
and combining the N, the authorization message Pn and the verification information An into a subfile Cn of An authorization file generated when the N product is purchased for the nth time.
10. The Etherhouse-based motor data set file transaction method according to claim 5, wherein the specific steps of storing supplier data and generating copyright information, and returning the copyright information, comprise:
the signed data set is packed and sent to a plurality of nodes participating in accounting in the alliance chain of the database unit, accounting storage of the data is carried out, and the data set is broadcasted to a node group of the alliance chain for safety storage after the accounting storage is finished;
where the data economy storage nodes within the platform also participate in the storage and send the data set back to the copyright owner.
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