CN113778950A - Credit file obtaining method, index server, query server and medium - Google Patents
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Abstract
The invention provides a method for acquiring a credit granting file, an index server, a query server and a medium, wherein the method comprises the following steps: receiving a query request sent by a query server, wherein the query request comprises a first keyword, and the first keyword is part of the content of a first credit document requested to be queried by the query server; acquiring first basic information according to the query request; and determining a first storage path associated with the first keyword and the first basic information, and feeding back the first storage path to the query server, wherein the first storage path is used for the query server to acquire a first credit file from the block link point. According to the invention, through the keywords corresponding to part of the contents of the credit granting files, all the credit granting files of the user corresponding to the basic information are searched, so that the credit granting files to be acquired by the user can be accurately positioned, and the comparison of all the credit granting files of the user one by one is not needed, thereby improving the query efficiency of the credit granting files.
Description
Technical Field
The invention relates to a network communication technology, in particular to a method for acquiring a credit granting file, an index server, a query server and a medium.
Background
With the gradual development of the internet, the industry short messages show a trend of becoming more and more common and increasing year by year in marketing, but also show a trend of increasing year by year in harassment and complaint of users.
In order to prevent the marketing short messages from disturbing the users, the marketing short messages including the credit bureau and the operators are managed, and a user credit granting mode is always adopted, namely, if a merchant wants to market the users, the merchant needs to obtain the credit granting of the users. The user trust generally adopts a file mode, and the trust file is stored in the block chain node so as to ensure that the trust file of the user is not tampered.
The existing credit granting file can be inquired only through fields which are preset such as a mobile phone number of a user. Therefore, in the process of actually extracting the credit granting file, only all the credit granting files stored on the block link node by the user can be inquired, and the final credit granting file can be determined only after the user compares all the credit granting files one by one. Therefore, the inquiry efficiency of the credit granting file is low.
Disclosure of Invention
The invention provides a method for acquiring a credit granting file, an index server, a query server and a medium, which are used for solving the problem of low query efficiency of the credit granting file.
In one aspect, the present invention provides a method for acquiring a trusted file, which is applied to an index server, and includes:
receiving a query request sent by a query server, wherein the query request comprises a first keyword, and the first keyword is part of the content of a first credit file requested to be queried by the query server;
acquiring first basic information according to the query request, wherein the first basic information comprises at least one of user information, merchant information, service types and credit granting time corresponding to the first credit granting file;
and determining a first storage path associated with the first keyword and the first basic information, and feeding back the first storage path to the query server, wherein the first storage path is used for the query server to acquire the first credit granting file from a block link point and to send the first credit granting file to a user terminal.
Optionally, before the step of receiving the query request, the method further includes:
receiving a second trust file sent by the query server, a second storage path corresponding to the second trust file, and second basic information corresponding to the second trust file, wherein the second storage path is a path for storing the second trust file by the block chain node;
creating each second keyword corresponding to the second credit authorization file according to all contents of the second credit authorization file;
and storing the second keywords, the second storage path and the second basic information in an associated manner, and sending the second keywords to the query server.
Optionally, the step of feeding back the first storage path to the query server includes:
acquiring each third keyword associated with the first storage path;
and sending the first basic information, the third key words and the first storage path to the query server, wherein the first basic information is used for the query server to determine whether the stored basic information is tampered, and the third key words are used for the query server to determine whether the stored key words are tampered.
On the other hand, the invention also provides a method for acquiring the credit granting file, which is applied to the query server and comprises the following steps:
receiving a query request sent by a user terminal, and sending the query request to an index server, wherein the query request comprises a first keyword, and the first keyword is part of the content of a first credit file requested to be queried by the user terminal;
receiving a first storage path of the first authorization file fed back by the index server, and sending the first storage path to a block link node, wherein the first storage path is acquired by the index server according to first basic information and the first keyword, and the first basic information includes at least one of user information, merchant information, service type and authorization time corresponding to the first authorization file;
and receiving the first credit granting file fed back by the block link node, and sending the first credit granting file to the user terminal.
Optionally, before the step of receiving the query request sent by the user terminal, the method further includes:
receiving a second credit granting file sent by the user terminal, and sending the second credit granting file to the block chain node;
receiving a second storage path of the second credit authorization file fed back by the block chain node, and creating second basic information corresponding to the second credit authorization file, where the second basic information includes at least one of user information, merchant information, service type, and authorization time corresponding to the second credit authorization file;
sending the second credit authorization file, the second storage path and the second basic information to the index server, wherein the index server creates each second keyword of the second credit authorization file;
and receiving and storing each second keyword fed back by the index server, and sending each second keyword to the user terminal.
Optionally, the step of receiving a first storage path of the first authorization file fed back by the index server includes:
receiving a response message of the query request fed back by the index server, wherein the response message of the query request comprises the first storage path, the response message of the query request further comprises each third keyword and the first basic information, and the third keywords and the first storage path are stored in the index server in an associated manner;
after receiving the first trust file fed back by the block chain node, the method further includes:
comparing each third keyword with each second keyword, and comparing the first basic information with the second basic information;
when the third key words do not have the same key words in the second key words, updating the second key words according to the third key words;
updating the second basic information according to the first basic information when the first basic information is different from the second basic information.
Optionally, after the step of receiving the first trust file fed back by the block chain node, the method further includes:
acquiring a first hash value of a second credit authorization file identical to the first credit authorization file, and calculating a second hash value of the first credit authorization file;
comparing the first hash value with the second hash value;
and when the first hash value is different from the second hash value, updating the second trust file which is the same as the first trust file according to the first trust file.
In another aspect, the present invention further provides an index server, including:
the system comprises a first receiving module, a second receiving module and a third receiving module, wherein the first receiving module is used for receiving a query request sent by a query server, and the query request comprises a first keyword, wherein the first keyword is part of the content of a first credit file requested to be queried by the query server;
the acquisition module is used for acquiring first basic information according to the query request, wherein the first basic information comprises at least one of user information, merchant information, service types and credit granting time corresponding to the first credit granting file;
and the determining module is used for determining a first storage path associated with the first keyword and the first basic information and feeding the first storage path back to the query server, wherein the first storage path is used for the query server to acquire the first credit file from a block link point and send the first credit file to a user terminal.
In another aspect, the present invention further provides an index server, including: a memory and a processor;
the memory stores computer-executable instructions;
the processor executes the computer execution instructions stored in the memory, so that the processor executes the method for acquiring the trusted file.
In another aspect, the present invention further provides a query server, including:
the second receiving module is used for receiving a query request sent by a user terminal and sending the query request to the index server, wherein the query request comprises a first keyword, and the first keyword is part of the content of a first credit file requested to be queried by the user terminal;
the second receiving module is configured to receive a first storage path of the first authorization file fed back by the index server, and send the first storage path to a block link node, where the first storage path is obtained by the index server according to first basic information and the first keyword, and the first basic information includes at least one of user information, merchant information, a service type, and credit granting time corresponding to the first authorization file;
the second receiving module is configured to receive the first credit granting file fed back by the block link point.
In another aspect, the present invention further provides a query server, including: a memory and a processor;
the memory stores computer-executable instructions;
the processor executes the computer execution instructions stored in the memory, so that the processor executes the method for acquiring the trusted file.
In another aspect, the present invention further provides a medium, where computer-executable instructions are stored, and when the computer-executable instructions are executed by a processor, the method for acquiring the trusted file is implemented as described above.
The method for acquiring the credit granting file, the index server, the query server and the medium receive the query request sent by the query server, acquire the keyword and the basic information through the query request, acquire the storage path based on the keyword and the basic information, and send the storage path to the query server, so that the query server acquires the credit granting file from the block link point based on the storage path and sends the credit granting file to the user terminal. According to the invention, through the keywords corresponding to part of the contents of the credit granting files, all the credit granting files of the user corresponding to the basic information are searched, so that the credit granting files to be acquired by the user can be accurately positioned, and the comparison of all the credit granting files of the user one by one is not needed, thereby improving the query efficiency of the credit granting files.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a system architecture diagram of the method for implementing acquisition of trusted files according to the present invention;
FIG. 2 is a flowchart illustrating a method for acquiring a trusted file according to a first embodiment of the present invention;
FIG. 3 is a flowchart illustrating a second embodiment of a method for acquiring a trusted file according to the present invention;
FIG. 4 is a flowchart illustrating a method for acquiring a trusted file according to a third embodiment of the present invention;
FIG. 5 is a flowchart illustrating a method for acquiring a trusted file according to a fourth embodiment of the present invention;
FIG. 6 is an interaction diagram of the credentialing file credentialing of the present invention;
FIG. 7 is an interaction diagram illustrating the forensic of a trusted document according to the present invention;
FIG. 8 is a block diagram of an index server according to the present invention;
FIG. 9 is a block diagram of a query server according to the present invention;
FIG. 10 is a diagram of the hardware structure of the index server/query server according to the present invention.
With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The invention provides a method for acquiring a credit granting file, which can be realized by a system architecture diagram shown in figure 1. As shown in fig. 1, the blockchain evidence storing platform, the blockchain full-text index platform and the distributed evidence storing platform are connected through network communication.
The block chain evidence storage platform adopts a block chain intelligent contract and stores user credit granting records, and each credit granting record comprises: basic information (the basic information comprises users, merchants, service types and the like), a block chain transaction ID, credit granting file path information, credit granting file Hash information and credit granting file keyword abstract information; meanwhile, the method ensures that the credit information cannot be tampered. The block link evidence storage platform is composed of a plurality of network management nodes, a plurality of consensus nodes and an inquiry server, and the gateway nodes are in communication connection with the consensus nodes through the inquiry server.
The distributed storage platform adopts a distributed storage technology, such as HDFS and other technologies, to store user credit granting files. Distributed storage ensures that the trusted file is not lost. The distributed storage platform comprises a plurality of storage nodes and storage servers, the storage servers are in communication connection with the storage nodes, and the storage nodes are block chain nodes.
The block chain full-text index platform stores full-text index information of a user credit granting file, the main key is a key word, and other fields comprise basic information, block chain transaction ID, key word summary information and the like.
A merchant, a user or a supervision department sends a credit granting file to a block chain credit and debit platform through a held terminal, the block chain credit and debit platform forwards the credit granting file to a distributed storage platform, the distributed storage platform stores the credit granting file in one of storage nodes, and a storage path of the credit granting file is fed back to the block chain credit and debit platform. And the block link credit verification platform creates basic information of the credit granting file, wherein the basic information comprises user information, merchant information, the service type of the credit granting file, the credit granting time of the credit granting file and the like. The block chain evidence storing platform sends the storage path, the credit granting file and the basic information to the block chain full-text index platform, the block chain full-text index platform conducts full-text index on the credit granting file, and therefore each keyword of the credit granting file is built, the block chain full-text index platform stores the storage path, each keyword and the basic information in an associated mode, deletes the credit granting file, and sends each keyword to the block chain evidence storing platform. And the block chain evidence storage platform returns the keywords to terminals held by merchants, users and supervision departments. When a user, a merchant or a supervision department needs to acquire a credit granting file, a query request is generated through the keywords of the terminal and is sent to the block chain evidence storing platform. The block chain evidence storing platform forwards the query request to a block chain full-text index platform, the block chain full-text index platform analyzes the query request to obtain a keyword and obtains basic information associated with the keyword, so that an associated storage path is obtained through the keyword and the basic information, the block chain full-text index platform sends the storage path to the block chain evidence storing platform, the block chain evidence storing platform sends the storage path to the distributed storage platform, the distributed storage platform obtains the credit granting file from the storage node through the storage path and then feeds the credit granting file back to the block chain evidence storing platform, and the block chain evidence storing platform at the end transmits the credit granting file to the terminal, so that evidence obtaining of the credit granting file by a user is completed.
The following describes the technical solutions of the present invention and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a first embodiment of the method for acquiring a trusted file according to the present invention, which is applied to an index server, and the method for acquiring a trusted file includes the following steps:
step S10, receiving an inquiry request sent by the inquiry server, where the inquiry request includes a first keyword, where the first keyword is a part of the content of the first authorization file requested to be inquired by the inquiry server.
In this embodiment, the execution subject is an index server. The index server is loaded with an application program corresponding to the block chain full-text index platform, and the block chain full-text index platform, namely the index server, stores a block chain transaction ID list, a summary information list of keywords, basic information and the like. Specifically, the data stored by the index server is shown in table-1:
TABLE-1
As shown in table-1, the index server stores basic information of the trust file, such as a blockchain transaction ID of the trust file, user information (e.g., a trust user list), merchant information (e.g., a merchant number list), a service type of the trust file, and trust time. The index server also stores keywords corresponding to the trust files and a keyword abstract information list consisting of a plurality of keywords. The keywords are generated by the index server according to the whole content of the credit granting file, namely the keywords are part of the content of the credit granting file.
And when the user needs to obtain the credit granting file, sending a query request to the query server. The query request comprises keywords of the credit granting file which is required to be acquired by the user. Here, the credit file that the user needs to acquire is defined as a first credit file, and the keyword of the credit file that the user needs to acquire is defined as a first keyword. The query server forwards the query request to the index server. The index server obtains a first keyword from the query request. The inquiry server is loaded with an application program corresponding to a user credit granting and deposit evidence platform, wherein the user credit granting and deposit evidence platform refers to a platform for storing credit granting files for users and merchants.
Step S20, obtaining first basic information according to the query request, where the first basic information includes at least one of user information, merchant information, service type, and credit granting time corresponding to the first credit granting file.
The index server is associated with a storage path of the credit granting file, basic information of the credit granting file and keywords of the credit granting file. After the index server obtains the query request, the index server can obtain the first basic information based on the query request. Specifically, the query request includes a first keyword, the index server may obtain first basic information associated with the first keyword, where the first basic information includes at least one of user information, merchant information, service type, and credit granting time corresponding to the first credit granting file. In addition, the query request is forwarded to the index server by the query server, so that the query request carries the identifier of the user terminal, the index server acquires each piece of basic information corresponding to the identifier, and then the first basic information is determined in each piece of basic information by the first keyword. The first basic information refers to basic information obtained by the index server according to the query request.
Step S30, determining a first storage path associated with the first keyword and the first basic information, and feeding the first storage path back to the query server, wherein the first storage path is used for the query server to obtain a first credit granting file from the block link point, and sending the first credit granting file to the user terminal.
After obtaining the first keyword and the first basic information, the index server may obtain the first keyword and a first storage path associated with the first basic information. The first storage path may be regarded as a path stored by the first trust file at the blockchain node. The index server feeds the first storage path back to the query server, the query server sends the first storage path to the block link node, the block link node obtains a first credit granting file based on the first storage path, the first credit granting file is fed back to the query server, and the query server forwards the first credit granting file to the user terminal, so that the user obtains the first credit granting file. In addition, the query server may send the first storage path to the storage server, and the storage server obtains the first credit granting file from the block link node corresponding to the first storage path and then sends the first credit granting file to the query server. The storage server is loaded with an application program of the trusted file storage platform.
In the technical scheme provided by this embodiment, an inquiry request sent by an inquiry server is received, and a keyword and basic information are obtained through the inquiry request, so that a storage path is obtained based on the keyword and the basic information, and the storage path is sent to the inquiry server, so that the inquiry server obtains a credit granting file from a block link point based on the storage path, and sends the credit granting file to a user terminal. According to the invention, through the keywords corresponding to part of the contents of the credit granting files, all the credit granting files of the user corresponding to the basic information are searched, so that the credit granting files to be acquired by the user can be accurately positioned, and the comparison of all the credit granting files of the user one by one is not needed, thereby improving the query efficiency of the credit granting files.
Referring to fig. 3, fig. 3 is a second embodiment of the method for acquiring a trusted file according to the present invention, and based on the first embodiment, before step S10, the method further includes:
step S40, receiving a second trust file sent by the query server, a second storage path corresponding to the second trust file, and second basic information corresponding to the second trust file, where the second storage path is a path where the block link point stores the second trust file.
Step S50, creating each second keyword corresponding to the second trusted file according to all the contents of the second trusted file.
Step S60, storing each second keyword, the second storage path, and the second basic information in association, and sending each second keyword to the query server.
In this embodiment, a user, a merchant, or a credit granting document administrator may submit a credit granting document to the user credit granting and crediting platform, that is, transmit the credit granting document to the query server for storing the credit granting document. And defining the trust file needing to be stored as a second trust file. And the query server forwards the second credit granting file to the storage server, the storage server stores the second credit granting file to the block link point to obtain a path of the second credit granting file stored at the block link point, and the path is defined as a second storage path. The storage server returns the second storage path to the query server, and the query server creates second basic information of the second credit granting file, wherein the second basic information includes user information, merchant information, service types, credit granting time and the like of the credit granting file. The user information comprises information such as a user mobile phone number, a block chain transaction ID of the credit authorization file, an identity card of the user and the like, and the merchant information comprises a merchant number, a block chain plus ID of the credit authorization file, an identity card of the merchant and mobile phone number registration information. The query server also calculates a hash value for the second trusted file.
And the query server sends the second credit granting file, the second basic information and the second storage path to the index server. The index server performs full-text index on the second trust file to create each second keyword of the second trust file, namely, each second keyword is created based on all contents of the second trust file. The index server stores the second keywords, the second storage path and the second basic information, feeds the second keywords back to the query server, and deletes the second credit granting file to save the storage space of the query server.
The inquiry server performs associated storage on the travel credit granting record by using each second keyword and the second storage path of the second basic information. The data structure of the credit record is shown in table-2:
TABLE-2
The query server sends each second keyword to the user terminal, so that the user terminal can obtain the stored second credit file through each second keyword.
In the technical scheme provided by this embodiment, the index server receives the second trusted file, the second storage path of the second trusted file, and the second basic information sent by the query server, so as to perform full-text indexing on all contents of the second trusted file to create each second keyword of the second trusted file, perform associated storage on each second keyword, the second storage path, and the second basic information, and send each second keyword to the query server, so that a user can accurately obtain a required trusted file through the second keyword.
In one embodiment, the step of feeding back the first storage path to the query server comprises:
acquiring each third keyword associated with the first storage path;
and sending the first basic information, each third keyword and the first storage path to an inquiry server, wherein the first basic information is used for the inquiry server to determine whether the stored basic information is tampered, and the third keyword is used for the inquiry server to determine whether the stored keyword is tampered.
In this embodiment, the query request includes a first keyword for a user to obtain a first credit authorization file, the index server may obtain a first storage path through the first keyword and the first basic information, and then obtain each third keyword through the first storage path, where each third keyword is all keywords stored in the index server by the first credit authorization file. And the index server sends the first storage path, each third keyword and the first basic information to the query server. The query server is a business server, and the credit records stored in the query server may be tampered. After the query server obtains the first basic information, the first basic information is compared with basic information corresponding to a first credit file stored by the query server to determine whether the basic information stored by the query server is tampered, and if the basic information stored by the query server is tampered, the stored basic information is replaced by the first basic information. After the query server obtains each third keyword, each third keyword is compared with each keyword of the stored first trust file to determine whether the stored keyword is tampered, and if the stored keyword is different, each stored keyword is replaced by the third keyword.
The invention provides a method for acquiring a credit granting file.
Referring to fig. 4, fig. 4 is a third embodiment of the method for acquiring a trusted file according to the present invention, which is applied to a query server, and the method for acquiring a trusted file includes:
step S100, receiving a query request sent by a user terminal, and sending the query request to an index server, wherein the query request comprises a first keyword, and the first keyword is a part of the content of a first authorization file requested to be queried by the user terminal.
In this embodiment, the execution subject is a query server. And when the user needs to obtain the credit granting file, sending a query request to the query server. The query request comprises keywords of the credit granting file which is required to be acquired by the user. Here, the credit file that the user needs to acquire is defined as a first credit file, and the keyword of the credit file that the user needs to acquire is defined as a first keyword. The query server forwards the query request to the index server. The index server obtains a first keyword from the query request. The inquiry server is loaded with an application program corresponding to a user credit granting and deposit evidence platform, wherein the user credit granting and deposit evidence platform refers to a platform for storing credit granting files for users and merchants.
The index server is loaded with an application program corresponding to the block chain full-text index platform, and the block chain full-text index platform, namely the index server, stores a block chain transaction ID list, a summary information list of keywords, basic information and the like. Specifically, the data stored by the index server is shown in table-1:
TABLE-1
As shown in table-1, the index server stores basic information of the trust file, such as a blockchain transaction ID of the trust file, user information (e.g., a trust user list), merchant information (e.g., a merchant number list), a service type of the trust file, and trust time. The index server also stores keywords corresponding to the trust files and a keyword abstract information list consisting of a plurality of keywords. The keywords are generated by the index server according to the whole content of the credit granting file, namely the keywords are part of the content of the credit granting file. The index server is associated with a storage path of the credit granting file, basic information of the credit granting file and keywords of the credit granting file. After the index server obtains the query request, the index server can obtain the first basic information based on the query request. Specifically, the query request includes a first keyword, the index server may obtain first basic information associated with the first keyword, where the first basic information includes at least one of user information, merchant information, service type, and credit granting time corresponding to the first credit granting file. In addition, the query request is forwarded to the index server by the query server, so that the query request carries the identifier of the user terminal, the index server acquires each piece of basic information corresponding to the identifier, and then the first basic information is determined in each piece of basic information by the first keyword. The first basic information refers to basic information obtained by the index server according to the query request.
Step S200, a first storage path of the first authorization file fed back by the index server is received, and the first storage path is sent to the block chain nodes, wherein the first storage path is obtained by the index server according to first basic information and a first keyword, and the first basic information comprises at least one of user information, merchant information, service types and credit granting time corresponding to the first credit granting file.
After obtaining the first keyword and the first basic information, the index server may obtain the first keyword and a first storage path associated with the first basic information. The first storage path may be regarded as a path stored by the first trust file at the blockchain node.
The index server feeds the first storage path back to the query server, and the query server sends the first storage path to the block link node, so that the block link node acquires the first credit granting file based on the first storage path, and then feeds the first credit granting file back to the query server, that is, the query server indirectly acquires the first credit granting file from the block link node. In addition, the query server may send the first storage path to the storage server, and the storage server obtains the first credit granting file from the block link node corresponding to the first storage path and then sends the first credit granting file to the query server, that is, the query server directly obtains the first credit granting file from the block link node. The storage server is loaded with an application program of the trusted file storage platform.
Step S300, receiving a first credit granting file fed back by the block link point, and sending the first credit granting file to the user terminal.
The query server receives a first credit granting file directly or indirectly fed back by the block link point, and then sends the first credit granting file to the user terminal, so that the user can obtain the first credit granting file.
In the technical scheme provided by this embodiment, after receiving a query request from a user terminal, the query request is sent to an index server, and then a storage path of a credit granting file obtained by the index server based on the query request is received, so that the credit granting file is obtained from a block link point based on the storage path, and the credit granting file is sent to the user terminal. According to the invention, through the keywords corresponding to part of the contents of the credit granting files, all the credit granting files of the user corresponding to the basic information are searched, so that the credit granting files to be acquired by the user can be accurately positioned, and the comparison of all the credit granting files of the user one by one is not needed, thereby improving the query efficiency of the credit granting files.
Referring to fig. 5, fig. 5 is a fourth embodiment of the method for acquiring a trusted file according to the present invention, and based on the third embodiment, the step S100 includes:
and step S400, receiving a second credit granting file sent by the user terminal, and sending the second credit granting file to the block chain node.
Step S500, receiving a second storage path of a second trust file fed back by the block chain node, and creating second basic information corresponding to the second trust file, wherein the second basic information includes at least one of user information, merchant information, service type and trust time corresponding to the second trust file.
Step S600, the second trust file, the second storage path and the second basic information are sent to an index server, wherein the index server creates each second keyword of the second trust file.
And S700, receiving and storing each second keyword fed back by the index server, and sending each second keyword to the user terminal.
In this embodiment, a user, a merchant, or a credit granting document administrator may submit a credit granting document to the user credit granting and crediting platform, that is, transmit the credit granting document to the query server for storing the credit granting document. And defining the trust file needing to be stored as a second trust file. And the query server forwards the second credit granting file to the storage server, the storage server stores the second credit granting file to the block link point to obtain a path of the second credit granting file stored at the block link point, and the path is defined as a second storage path. The storage server returns the second storage path to the query server, and the query server creates second basic information of the second credit granting file, wherein the second basic information includes user information, merchant information, service types, credit granting time and the like of the credit granting file. The user information comprises information such as a user mobile phone number, a block chain transaction ID of the credit authorization file, an identity card of the user and the like, and the merchant information comprises a merchant number, a block chain plus ID of the credit authorization file, an identity card of the merchant and mobile phone number registration information. The query server also calculates a hash value for the second trusted file.
And the query server sends the second credit granting file, the second basic information and the second storage path to the index server. The index server performs full-text index on the second trust file to create each second keyword of the second trust file, namely, each second keyword is created based on all contents of the second trust file. The index server stores the second keywords, the second storage path and the second basic information, feeds the second keywords back to the query server, and deletes the second credit granting file to save the storage space of the query server.
The inquiry server performs associated storage on the travel credit granting record by using each second keyword and the second storage path of the second basic information. The data structure of the credit record is shown in table-2:
TABLE-2
The query server sends each second keyword to the user terminal, so that the user terminal can obtain the stored second credit file through each second keyword.
In the technical scheme provided by this embodiment, the query server receives a second credit authorization file sent by the user terminal, and sends the second credit authorization file to the block link node for storage, and the query server sends a second storage path fed back by the block link node, second basic information of the second credit authorization file, and the second credit authorization file to the index server, so that the index server creates each second keyword of the second credit authorization file, and sends each second keyword fed back by the index server to the user terminal, so that the user can accurately obtain a required credit authorization file through the second keyword.
In an embodiment, when determining the first storage path, the index server feeds back a response message of the query request to the query information, where the response message includes each third keyword and the first basic information, and the third keyword is associated with the first storage path and stored in the index server. After receiving the first credit granting file fed back by the block link points, the query server compares each third keyword with each second keyword, and compares the first basic information with the second basic information. When the third key words do not have the same key words in the second key words, updating the second key words according to the third key words, namely replacing the second key words with the third key words; when the first basic information is different from the second basic information, the second basic information is updated according to the first basic information, that is, the second basic information is replaced by the first basic information.
In an embodiment, after the query server receives the first credit authorization file fed back by the block link point, the query server obtains a first hash value of a second credit authorization file that is the same as the first credit authorization file, and calculates a second hash value of the first credit authorization file. The query server compares the first hash value with the second hash value. And if the first hash value is different from the second hash value, the credit authorization file stored by the query server is tampered, and the query server updates a second credit authorization file which is the same as the first credit authorization file according to the first credit authorization file, namely, the tampered second credit authorization file is replaced by the first credit authorization file.
The method for acquiring the credit-granted file comprises two stages, wherein the first stage is for storing the evidence of the credit-granted file, and the second stage is for obtaining the evidence of the credit-granted file. The two phases are briefly described below.
Referring to fig. 6, fig. 6 is an interaction diagram of a credit document storage process, which includes the following specific steps:
1. the merchant submits a credit granting file to a user credit granting and deposit evidence platform (a block chain credit granting platform), wherein the credit granting file is in an electronic form, such as Word and the like;
2. the credit granting and evidence storing platform forwards the credit granting file to a credit granting file storage platform (distributed storage platform) for distributed storage;
3. successfully storing the trust file in the trust file storage platform and returning a trust file path;
4. the credit accreditation platform creates block chain user credit accreditation records, calculates the Hash value of the credit accreditation file and updates the field content, such as basic information (users, merchants, service types and the like), a credit accreditation file path and the Hash value of the credit accreditation file, and the data format of the credit accreditation records is shown in table 1;
5. the credit granting and evidence storing platform forwards credit granting record information and the credit granting files to the block chain full-text index platform;
6. the block chain full-text index platform carries out full-text index on the credit granting file, creates credit granting record index information, and the data format of the index information is shown in a table 2; after the full-text index record is successfully created, returning the keyword abstract information of the credit and evidence storage platform;
7. updating key word summary fields in the credit record by the credit storage and verification platform;
8. the credit exchange platform informs the monitoring party and the user (namely the mobile phone number of the user) of the credit record result;
9. and the credit granting and deposit evidence platform informs the merchant of the credit granting and record result.
Referring to fig. 7, fig. 7 is an interaction diagram of a trust file forensics process, which includes the following specific steps:
1. a monitoring party or a user sends a evidence obtaining and inquiring request to a user crediting and evidence storing platform, wherein the request is a keyword to be inquired;
2. and the user credit granting and evidence storing platform forwards the request to the blockchain full-text index platform, and inquires all blockchain transaction ID lists and keyword abstract information lists thereof according to the keywords.
3. The block chain full-text index platform returns a block chain transaction ID list, a keyword summary information list and other basic information lists to the user credit granting and evidence storing platform;
4. the user credit granting and deposit evidence platform expands the keyword query result list, searches each record for a credit granting record in the credit granting and deposit evidence platform according to the transaction ID, and if the records are searched, compares basic information and keyword abstract information in the user credit granting and deposit evidence platform with information in the block chain full-text index platform with the received information to verify that the credit granting record stored in the credit granting and deposit evidence platform is not tampered;
5. initiating query to a credit file storage platform according to a credit file path queried by a user credit storage and verification platform to acquire an original credit file;
6. the credit granting file storage platform returns the inquired credit granting file to the user credit granting and evidence storing platform;
7. the user credit and evidence storage platform calculates the Hash value of the credit and evidence storage file, and compares the Hash value with the Hash value in the credit and evidence storage record in the user credit and evidence storage platform to determine that the credit and evidence storage file stored in the user credit and evidence storage platform is not tampered;
8. and the user credit authorization platform returns the credit authorization record and the credit authorization file to the supervision method or the user.
It should be noted that the merchant, the administrator, and the user are user terminals in the above embodiment, the user credit granting and verification platform is a query server in the above embodiment, the full-text index platform of the blockchain is an index server in the above embodiment, the credit granting file storage platform is a storage server in the above embodiment, and the storage server is connected to a plurality of blockchain nodes.
The present invention also provides an index server, and referring to fig. 8, the index server 800 includes:
a first receiving module 801, configured to receive a query request sent by a query server, where the query request includes a first keyword, where the first keyword is a partial content of a first credit document requested to be queried by the query server;
an obtaining module 802, configured to obtain first basic information according to the query request, where the first basic information includes at least one of user information, merchant information, a service type, and credit granting time corresponding to the first credit granting file;
the determining module 803 is configured to determine a first storage path associated with the first keyword and the first basic information, and feed back the first storage path to the query server, where the first storage path is used for the query server to obtain the first credit providing file from the block link point, and send the first credit providing file to the user terminal.
In one embodiment, the index server 800 includes:
a first receiving module 801, configured to receive a second trust file sent by the query server, a second storage path corresponding to the second trust file, and second basic information corresponding to the second trust file, where the second storage path is a path in which a block link point stores the second trust file;
the creating module is used for creating each second keyword corresponding to the second credit authorization file according to all contents of the second credit authorization file;
and the storage module is used for storing each second keyword, each second storage path and each second basic information in an associated manner and sending each second keyword to the query server.
In one embodiment, the index server 800 includes:
an obtaining module 802, configured to obtain each third keyword associated with the first storage path;
the sending module is used for sending the first basic information, the third key words and the first storage path to the query server, wherein the first basic information is used for the query server to determine whether the stored basic information is tampered, and the third key words are used for the query server to determine whether the stored key words are tampered.
The present invention also provides a query server, and referring to fig. 9, the query server 900 includes:
a second receiving module 901, configured to receive a query request sent by a user terminal, and send the query request to an index server, where the query request includes a first keyword, and the first keyword is a partial content of a first trusted file requested to be queried by the user terminal;
a second receiving module 901, configured to receive a first storage path of a first authorization file fed back by an index server, and send the first storage path to a block link node, where the first storage path is obtained by the index server according to first basic information and a first keyword, and the first basic information includes at least one of user information, merchant information, a service type, and a credit granting time corresponding to a first credit granting file;
the second receiving module 901 is configured to receive the first credit granting file fed back by the block link point, and send the first credit granting file to the user terminal.
In one embodiment, the query server 900 includes:
a second receiving module 901, configured to receive a second credit authorization file sent by the user terminal, and send the second credit authorization file to the block link node;
a second receiving module 901, configured to receive a second storage path of a second trust file fed back by a block link point, and create second basic information corresponding to the second trust file, where the second basic information includes at least one of user information, merchant information, service type, and trust time corresponding to the second trust file;
the sending module is used for sending the second credit granting file, the second storage path and the second basic information to the index server, wherein the index server creates each second keyword of the second credit granting file;
the second receiving module 901 is configured to receive and store each second keyword fed back by the index server, and send each second keyword to the user terminal.
In one embodiment, the query server 900 includes:
a second receiving module 901, configured to receive a response message of a query request fed back by an index server, where the response message of the query request includes a first storage path, and the response message of the query request also includes each third keyword and first basic information, and the third keyword and the first storage path are stored in the index server in an associated manner;
the comparison module is used for comparing each third keyword with each second keyword and comparing the first basic information with the second basic information;
the updating module is used for updating each second keyword according to each third keyword when the third keyword does not have the same keyword in each second keyword;
and the updating module is used for updating the second basic information according to the first basic information when the first basic information is different from the second basic information.
In one embodiment, the query server 900 includes:
the acquisition module is used for acquiring a first hash value of a second credit authorization file identical to the first credit authorization file and calculating a second hash value of the first credit authorization file;
the comparison module is used for comparing the first hash value with the second hash value;
and the updating module is used for updating a second credit file which is the same as the first credit file according to the first credit file when the first hash value is different from the second hash value.
FIG. 10 is a diagram illustrating a hardware architecture of an index server/query server in accordance with an illustrative embodiment.
The index/query server 1000 may include: a processor 1001, such as a CPU, a memory 1002, and a transceiver 1003. Those skilled in the art will appreciate that the architecture shown in FIG. 10 does not constitute a limitation of index/query servers, and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components. The memory 1002 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The processor 1001 may call a computer program stored in the memory 1002 to complete all or part of the steps of the above method for acquiring the trusted file.
The transceiver 1003 is used for receiving and transmitting information from and to an external device.
A non-transitory computer-readable storage medium, wherein instructions of the storage medium, when executed by a processor of an index server/query server, enable the index server/query server to execute the above method for obtaining a trusted file.
A computer program product comprising a computer program which, when executed by a processor of an index server/query server, enables the index server/query server to perform the above mentioned method of obtaining trusted files.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A method for acquiring a credit granting file is applied to an index server and comprises the following steps:
receiving a query request sent by a query server, wherein the query request comprises a first keyword, and the first keyword is part of the content of a first credit file requested to be queried by the query server;
acquiring first basic information according to the query request, wherein the first basic information comprises at least one of user information, merchant information, service types and credit granting time corresponding to the first credit granting file;
and determining a first storage path associated with the first keyword and the first basic information, and feeding back the first storage path to the query server, wherein the first storage path is used for the query server to acquire the first credit granting file from a block link point and to send the first credit granting file to a user terminal.
2. The method for acquiring a trusted file according to claim 1, wherein before the step of receiving the query request, the method further comprises:
receiving a second trust file sent by the query server, a second storage path corresponding to the second trust file, and second basic information corresponding to the second trust file, wherein the second storage path is a path for storing the second trust file by the block chain node;
creating each second keyword corresponding to the second credit authorization file according to all contents of the second credit authorization file;
and storing the second keywords, the second storage path and the second basic information in an associated manner, and sending the second keywords to the query server.
3. The method for acquiring the trusted file according to claim 2, wherein the step of feeding back the first storage path to the query server comprises:
acquiring each third keyword associated with the first storage path;
and sending the first basic information, the third key words and the first storage path to the query server, wherein the first basic information is used for the query server to determine whether the stored basic information is tampered, and the third key words are used for the query server to determine whether the stored key words are tampered.
4. A method for acquiring a credit granting file is applied to a query server and comprises the following steps:
receiving a query request sent by a user terminal, and sending the query request to an index server, wherein the query request comprises a first keyword, and the first keyword is part of the content of a first credit file requested to be queried by the user terminal;
receiving a first storage path of the first authorization file fed back by the index server, and sending the first storage path to a block link node, wherein the first storage path is acquired by the index server according to first basic information and the first keyword, and the first basic information includes at least one of user information, merchant information, service type and authorization time corresponding to the first authorization file;
and receiving the first credit granting file fed back by the block link node, and sending the first credit granting file to the user terminal.
5. The method for acquiring the trusted file according to claim 4, wherein before the step of receiving the query request sent by the user terminal, the method further comprises:
receiving a second credit granting file sent by the user terminal, and sending the second credit granting file to the block chain node;
receiving a second storage path of the second credit authorization file fed back by the block chain node, and creating second basic information corresponding to the second credit authorization file, where the second basic information includes at least one of user information, merchant information, service type, and authorization time corresponding to the second credit authorization file;
sending the second credit authorization file, the second storage path and the second basic information to the index server, wherein the index server creates each second keyword of the second credit authorization file;
and receiving and storing each second keyword fed back by the index server, and sending each second keyword to the user terminal.
6. The method for acquiring the trusted file according to claim 5, wherein the step of receiving the first storage path of the first authorization file fed back by the index server comprises:
receiving a response message of the query request fed back by the index server, wherein the response message of the query request comprises the first storage path, the response message of the query request further comprises each third keyword and the first basic information, and the third keywords and the first storage path are stored in the index server in an associated manner;
after receiving the first trust file fed back by the block chain node, the method further includes:
comparing each third keyword with each second keyword, and comparing the first basic information with the second basic information;
when the third key words do not have the same key words in the second key words, updating the second key words according to the third key words;
updating the second basic information according to the first basic information when the first basic information is different from the second basic information.
7. The method for acquiring the trusted file according to claim 5, wherein after the step of receiving the first trusted file fed back by the block chain node, the method further comprises:
acquiring a first hash value of a second credit authorization file identical to the first credit authorization file, and calculating a second hash value of the first credit authorization file;
comparing the first hash value with the second hash value;
and when the first hash value is different from the second hash value, updating the second trust file which is the same as the first trust file according to the first trust file.
8. An index server, comprising:
the system comprises a first receiving module, a second receiving module and a third receiving module, wherein the first receiving module is used for receiving a query request sent by a query server, and the query request comprises a first keyword, wherein the first keyword is part of the content of a first credit file requested to be queried by the query server;
the acquisition module is used for acquiring first basic information according to the query request, wherein the first basic information comprises at least one of user information, merchant information, service types and credit granting time corresponding to the first credit granting file;
and the determining module is used for determining a first storage path associated with the first keyword and the first basic information and feeding the first storage path back to the query server, wherein the first storage path is used for the query server to acquire the first credit file from a block link point and send the first credit file to a user terminal.
9. An index server, comprising: a memory and a processor;
the memory stores computer-executable instructions;
the processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for acquiring the trusted file according to any one of claims 1 to 3.
10. A query server, comprising:
the second receiving module is used for receiving a query request sent by a user terminal and sending the query request to the index server, wherein the query request comprises a first keyword, and the first keyword is part of the content of a first credit file requested to be queried by the user terminal;
the second receiving module is configured to receive a first storage path of the first authorization file fed back by the index server, and send the first storage path to a block link node, where the first storage path is obtained by the index server according to first basic information and the first keyword, and the first basic information includes at least one of user information, merchant information, a service type, and credit granting time corresponding to the first authorization file;
the second receiving module is configured to receive the first credit granting file fed back by the block link point, and send the first credit granting file to the user terminal.
11. A query server, comprising: a memory and a processor;
the memory stores computer-executable instructions;
the processor executes the computer-executable instructions stored in the memory, so that the processor executes the method for acquiring the trusted file according to any one of claims 4 to 7.
12. A medium having stored thereon computer executable instructions for implementing a method of acquiring a trusted document as claimed in any one of claims 1 to 7 when executed by a processor.
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