CN112700244A - Information storage system, method and server based on block chain - Google Patents
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- CN112700244A CN112700244A CN202011611571.0A CN202011611571A CN112700244A CN 112700244 A CN112700244 A CN 112700244A CN 202011611571 A CN202011611571 A CN 202011611571A CN 112700244 A CN112700244 A CN 112700244A
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Abstract
The embodiment of the invention provides an information storage system, a method and a server based on a block chain, wherein the system comprises: the system comprises an information management server and information recording nodes, wherein the information management server and the information recording nodes construct a block chain by a federation chain. By applying the scheme provided by the embodiment of the invention, the characteristics of decentralization, openness, autonomy, difficulty in information tampering and the like can be combined with the block chain technology, so that the safety of evaluating data storage is ensured.
Description
Technical Field
The invention relates to the technical field of computers, in particular to an information storage system, an information storage method and a server based on a block chain.
Background
In the existing information storage system, a centralized storage manner is usually adopted to store information, that is, information to be stored is stored in a database.
Since all information is stored in one database, the information stored in the database is easily tampered after the database is broken, and therefore, how to ensure the security of information storage is a problem which is widely concerned at present.
Disclosure of Invention
The embodiment of the invention aims to provide an information storage system, an information storage method and a server based on a block chain, so as to guarantee the safety of information storage. The specific technical scheme is as follows:
in one aspect of an embodiment of the present invention, an information storage system based on a block chain is provided, where the system includes: the system comprises an information management server and information recording nodes, wherein the information management server and the information recording nodes construct a block chain by a alliance chain;
the information management server receives evaluation data uploaded by the examination staff and broadcasts the evaluation data to the information recording nodes, wherein the evaluation data are used for representing the evaluation result of the test paper after the examination staff performs evaluation on the test paper;
when the information management server detects that the number of the information recording nodes of the obtained evaluation data reaches a preset number, one information recording node is selected from the information recording nodes of the obtained evaluation data as an accounting node, and a preset algorithm is used for distributing key pairs for the accounting node;
the accounting node encrypts the review data by using a private key of the key pair to obtain transaction data, establishes a block at the tail of the block chain, and stores the transaction data and a public key of the key pair into the established block; broadcasting broadcast information including the transaction data and a key to the information recording nodes other than the accounting node;
and the other information recording nodes receive and record the broadcast information.
Optionally, the process of receiving and recording the broadcast information by the other information recording node includes:
and after the other information recording nodes receive the broadcast information, generating a block at the tail of the current block chain when the information recording nodes corresponding to the public key are verified to store the broadcast information, and storing the broadcast information into the generated block.
Optionally, reviewing the data comprises: the account number of the examiner, the name of the examiner, the examination paper reading time and the score of the examination paper.
Optionally, the system further includes: a review subsystem;
and the evaluation subsystem receives evaluation data generated by the examination paper evaluated by the examination staff and uploads the evaluation data to the information management server.
Optionally, the review mode adopted by the review subsystem for receiving the review data generated by the review papers of the examiners includes:
a one-person evaluation mode, a multi-person evaluation mode, an arbitration evaluation mode, a question paper evaluation mode and a review mode.
Optionally, when the review mode is a multi-user review mode, the process of uploading the review data to the information management server by the review subsystem includes:
the evaluation subsystem acquires the test paper scores obtained by two examination personnel evaluating the same test paper, calculates the difference value between the test paper scores, takes the average value of the test paper scores as the final test paper score under the condition that the difference value is smaller than a preset threshold value, and uploads evaluation data to the information management server;
when the difference is larger than a preset threshold value, the examination paper is sent to a third examinee, third-party examination paper scores obtained by the third examinee when the third examinee reviews the examination paper are received, absolute values of the difference between the third-party examination paper scores and the examination paper scores are respectively calculated, whether a smaller absolute value in the calculated absolute values is smaller than the preset threshold value or not is determined, if yes, an average value between the examination paper scores corresponding to the smaller absolute value is used as a final examination paper score, and review data are uploaded to the information management server; if not, the evaluation subsystem sends the test paper to a supervisor and modifies the evaluation mode into an arbitration evaluation mode, the supervisor evaluates the test paper in the arbitration evaluation mode to obtain evaluation data, and the evaluation subsystem uploads the evaluation data to the information management server.
Optionally, the review subsystem detects whether the examination paper is marked as a problem paper by the examination staff in the process that the examination staff review the examination paper through the review subsystem, if so, the review subsystem sends the problem paper to the supervision staff and modifies the review mode into the problem paper review mode, and the supervision staff reviews the problem paper in the problem paper review mode to generate review data.
Optionally, the review subsystem receives review data of the test paper from the examination clerk when the review mode is changed to the review mode.
In another aspect of the present invention, there is also provided an information storage method based on a block chain, which is applied to an information management server in an information storage system based on a block chain, where the information storage system further includes an information recording node, and the information management server and the information recording node construct a block chain in a federation chain; the method comprises the following steps:
receiving evaluation data uploaded by the examination staff, and broadcasting the evaluation data to an information recording node, wherein the evaluation data is used for representing the evaluation result of the examination paper after the examination staff performs evaluation on the examination paper;
when detecting that the number of the information recording nodes of the obtained evaluation data reaches a preset number, selecting one information recording node from the information recording nodes of the obtained evaluation data as an accounting node, and distributing a key pair for the accounting node by using a preset algorithm;
and sending the key pair to the accounting node, so that the accounting node encrypts the review data by using a private key of the key pair to obtain transaction data, establishing a block at the tail of the block chain, storing the transaction data and a public key of the key pair into the established block, and broadcasting broadcast information containing the transaction data and the public key to other information recording nodes except the accounting node in the information recording nodes.
In another aspect of the present invention, there is also provided a server, including a processor, a communication interface, a memory and a communication bus, where the processor and the communication interface complete communication between the memory and the processor through the communication bus;
a memory for storing processor-executable instructions;
and the processor is used for realizing the information storage method based on the block chain when executing the instructions stored in the memory.
According to the information storage system, the method and the server based on the block chain, provided by the embodiment of the invention, the information management server receives the evaluation data uploaded by the examination staff and broadcasts the evaluation data to the information recording nodes; when the information management server detects that the number of the information recording nodes of the obtained evaluation data reaches a preset number, one information recording node is selected from the information recording nodes of the obtained evaluation data as an accounting node, and a preset algorithm is used for distributing key pairs for the accounting node; the accounting node encrypts the evaluation data by using a private key of the key pair to obtain transaction data, establishes a block at the chain tail of the block chain, and stores the transaction data and a public key of the key pair into the established block; broadcasting broadcast information including transaction data and a public key to other information recording nodes except the accounting node; and other information recording nodes receive and record the broadcast information. By applying the scheme provided by the embodiment of the invention, the characteristics of decentralization, openness, autonomy, difficulty in information tampering and the like can be combined with the block chain technology, so that the safety of evaluating data storage is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an information storage system based on a block chain according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of an information storage method based on a block chain according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a server according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a schematic structural diagram of an information storage system based on a block chain according to an embodiment of the present invention is provided, where the system includes: the system comprises an information management server and information recording nodes, wherein the information management server and the information recording nodes construct a block chain by a alliance chain;
and the information management server receives the evaluation data uploaded by the examination staff and broadcasts the evaluation data to the information recording nodes.
In implementation, the review data is data representing the review result of the test paper after the examination person reviews the test paper.
In implementations, reviewing data may include: the account number of the examiner, the name of the examiner, the examination paper reading time, the score of the examination paper and the like.
In one implementation, the information storage system may further include: and an evaluation subsystem. In implementation, the review subsystem may upload the review data to the information management server after receiving the review data generated by the review paper of the examiner.
When the information management server detects that the number of the information recording nodes of the obtained evaluation data reaches a preset number, one information recording node is selected from the information recording nodes of the obtained evaluation data to serve as an accounting node, and a preset algorithm is used for distributing key pairs for the accounting node.
In an implementation, the preset number may be: 3. namely, when the information management server detects that the number of the information recording nodes which acquire the review data reaches 3, one information recording node is selected from the 3 information recording nodes which acquire the review data to serve as an accounting node.
Specifically, when the accounting node is selected, a random algorithm may be adopted to select the accounting node.
In an implementation, asymmetric cryptographic algorithms may be utilized to assign key pairs to billing nodes.
The accounting node encrypts the evaluation data by using a private key of the key pair to obtain transaction data, establishes a block at the chain tail of the block chain, and stores the transaction data and a public key of the key pair into the established block; broadcasting the broadcast information including the transaction data and the key to other information recording nodes except the accounting node among the information recording nodes.
In the implementation, each block records the hash information of the last block, and the hash information is stored permanently, and the modification of the data by a single information recording node is invalid. The book information with the largest number of information recording nodes recording the same evaluation data is true information, and the book information with a small part inconsistent with other nodes is false information. If two or more than two accounting nodes recording the accounting information with the same quantity and the most quantity exist, the accounting information is judged to be false information, the corresponding accounting node is judged to be an invalid node, and the evaluation subsystem is requested to send evaluation data again.
And other information recording nodes receive and record the broadcast information.
Specifically, after receiving the broadcast information, the other information recording nodes may generate a block at the end of the current block chain when verifying that the information recording node corresponding to the public key stores the broadcast information, and store the broadcast information in the generated block.
In one implementation, the review mode in which the review subsystem receives the review data generated by the review paper of the examiner may include:
a one-person evaluation mode, a multi-person evaluation mode, an arbitration evaluation mode, a question paper evaluation mode and a review mode.
Specifically, the one-person review mode is that one examination clerk reviews the test paper.
Under the condition that the evaluation mode is a multi-person evaluation mode, the process that the evaluation subsystem uploads evaluation data to the information management server comprises the following steps:
the evaluation and reading subsystem acquires test paper scores obtained by two examination personnel evaluating the same test paper, calculates the difference value between the test paper scores, takes the average value of the test paper scores as the final test paper score under the condition that the difference value is smaller than a preset threshold value, and uploads evaluation and reading data to the information management server;
under the condition that the difference value is larger than the preset threshold value, the test volume is sent to a third examinee, the third-party test paper score obtained by the third examinee for evaluating the test paper is received, the absolute value of the difference value between the third-party test paper score and the test paper score is respectively calculated, whether the smaller absolute value in the calculated absolute values is smaller than the preset threshold value or not is determined, if yes, the average value between the test paper scores corresponding to the smaller absolute value is used as the final test paper score, and evaluation data are uploaded to the information management server;
for example, the test scores of the first two examiners for reviewing the test paper are respectively: 90. 96, respectively. The third party test paper score obtained by the third examiner reviewing the test paper is as follows: 94. the absolute values of the differences between the calculation 94 and 90, 96 are 4, 2, respectively. In the case where 2 is less than the preset threshold, the average of 94 and 96 is taken as the final test paper score.
If not, the evaluation subsystem sends the test paper to the supervisor and modifies the evaluation mode into an arbitration evaluation mode, the supervisor evaluates the test paper in the arbitration evaluation mode to obtain evaluation data, and the evaluation subsystem uploads the evaluation data to the information management server.
In practice, the proctoring person, i.e., the person who is more competent in the academic world than the test taker, may be, for example, a disciplinary group leader.
The examination and reading subsystem detects whether the examination papers are marked as problem papers by the examination personnel in the process that the examination papers are evaluated by the examination and reading subsystem, if so, the examination and reading subsystem sends the problem papers to the supervision personnel and modifies the evaluation mode into the problem paper evaluation mode, and the supervision personnel evaluate the problem papers under the problem paper evaluation mode to generate evaluation and reading data.
That is, when the examination clerk has a question about the test paper, the examination clerk can submit the examination paper to the proctor to review the test paper, so that the accuracy of the review information is ensured.
Under the condition that the review mode is changed into the review mode, namely when the examination person needs to review the test paper again, the review subsystem can select the review mode, and under the condition, the review subsystem receives review data of the examination person on the test paper again.
By applying the scheme provided by the embodiment of the invention, the characteristics of decentralization, openness, autonomy, difficulty in information tampering and the like can be combined with the block chain technology, so that the safety of evaluating data storage is ensured.
Fig. 2 is a schematic flow chart of an information storage method based on a block chain according to an embodiment of the present invention, which is applied to an information management server in an information storage system based on a block chain, where the information storage system further includes an information recording node, and the information management server and the information recording node construct a block chain in a federation chain; the method comprises the following steps:
s200, receiving evaluation data uploaded by the examination staff, and broadcasting the evaluation data to an information recording node, wherein the evaluation data is used for representing the evaluation result of the test paper after the examination staff performs evaluation on the test paper;
s210, when detecting that the number of the information recording nodes of the obtained evaluation data reaches a preset number, selecting one information recording node from the information recording nodes of the obtained evaluation data as an accounting node, and distributing a key pair to the accounting node by using a preset algorithm;
s220, the key pair is sent to the accounting node, so that the accounting node encrypts the review data by using the private key of the key pair to obtain transaction data, a block is established at the tail of the block chain, the transaction data and the public key of the key pair are stored in the established block, and broadcast information containing the transaction data and the public key is broadcast to other information recording nodes except the accounting node in the information recording nodes.
By applying the scheme provided by the embodiment of the invention, the characteristics of decentralization, openness, autonomy, difficulty in information tampering and the like can be combined with the block chain technology, so that the safety of evaluating data storage is ensured.
An embodiment of the present invention further provides a server, as shown in fig. 3, including a processor 001, a communication interface 002, a memory 003, and a communication bus 004, where the processor 001, the communication interface 002, and the memory 003 complete mutual communication through the communication bus 004,
a memory 003 for storing processor-executable instructions;
the processor 001, configured to implement any one of the above block chain-based information storage methods when executing instructions stored in the memory, includes:
receiving evaluation data uploaded by the examination staff, and broadcasting the evaluation data to an information recording node, wherein the evaluation data is used for representing the evaluation result of the examination paper after the examination staff performs evaluation on the examination paper;
when detecting that the number of the information recording nodes of the obtained evaluation data reaches a preset number, selecting one information recording node from the information recording nodes of the obtained evaluation data as an accounting node, and distributing a key pair for the accounting node by using a preset algorithm;
and sending the key pair to the accounting node, so that the accounting node encrypts the review data by using a private key of the key pair to obtain transaction data, establishing a block at the tail of the block chain, storing the transaction data and a public key of the key pair into the established block, and broadcasting broadcast information containing the transaction data and the public key to other information recording nodes except the accounting node in the information recording nodes.
By applying the scheme provided by the embodiment of the invention, the characteristics of decentralization, openness, autonomy, difficulty in information tampering and the like can be combined with the block chain technology, so that the safety of evaluating data storage is ensured.
The communication bus mentioned in the electronic device may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The communication interface is used for communication between the electronic equipment and other equipment.
The Memory may include a Random Access Memory (RAM) or a Non-Volatile Memory (NVM), such as at least one disk Memory. Optionally, the memory may also be at least one memory device located remotely from the processor.
The Processor may be a general-purpose Processor, including a Central Processing Unit (CPU), a Network Processor (NP), and the like; but also Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the invention to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website site, computer, server, or data center to another website site, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the method and server embodiments, since they are substantially similar to the method embodiments, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A blockchain-based information storage system, the system comprising: the system comprises an information management server and information recording nodes, wherein the information management server and the information recording nodes construct a block chain by a alliance chain;
the information management server receives evaluation data uploaded by the examination staff and broadcasts the evaluation data to the information recording nodes, wherein the evaluation data are used for representing the evaluation result of the test paper after the examination staff performs evaluation on the test paper;
when the information management server detects that the number of the information recording nodes of the obtained evaluation data reaches a preset number, one information recording node is selected from the information recording nodes of the obtained evaluation data as an accounting node, and a preset algorithm is used for distributing key pairs for the accounting node;
the accounting node encrypts the review data by using a private key of the key pair to obtain transaction data, establishes a block at the tail of the block chain, and stores the transaction data and a public key of the key pair into the established block; broadcasting broadcast information including the transaction data and a key to the information recording nodes other than the accounting node;
and the other information recording nodes receive and record the broadcast information.
2. The blockchain-based information storage system of claim 1, wherein the process of the other information recording node receiving and recording the broadcast information includes:
and after the other information recording nodes receive the broadcast information, generating a block at the tail of the current block chain when the information recording nodes corresponding to the public key are verified to store the broadcast information, and storing the broadcast information into the generated block.
3. The blockchain-based information storage system of claim 1, wherein reviewing data comprises: the account number of the examiner, the name of the examiner, the examination paper reading time and the score of the examination paper.
4. The blockchain-based information storage system of claim 1, wherein the system further comprises: a review subsystem;
and the evaluation subsystem receives evaluation data generated by the examination paper evaluated by the examination staff and uploads the evaluation data to the information management server.
5. The blockchain-based information storage system of claim 4, wherein the review mode in which the review subsystem receives review data generated by the test taker review paper includes:
a one-person evaluation mode, a multi-person evaluation mode, an arbitration evaluation mode, a question paper evaluation mode and a review mode.
6. The blockchain-based information storage system of claim 5, wherein in the case that the review mode is a multiple-person review mode, the process of the review subsystem uploading the review data to the information management server includes:
the evaluation subsystem acquires the test paper scores obtained by two examination personnel evaluating the same test paper, calculates the difference value between the test paper scores, takes the average value of the test paper scores as the final test paper score under the condition that the difference value is smaller than a preset threshold value, and uploads evaluation data to the information management server;
when the difference is larger than a preset threshold value, the examination paper is sent to a third examinee, third-party examination paper scores obtained by the third examinee when the third examinee reviews the examination paper are received, absolute values of the difference between the third-party examination paper scores and the examination paper scores are respectively calculated, whether a smaller absolute value in the calculated absolute values is smaller than the preset threshold value or not is determined, if yes, an average value between the examination paper scores corresponding to the smaller absolute value is used as a final examination paper score, and review data are uploaded to the information management server; if not, the evaluation subsystem sends the test paper to a supervisor and modifies the evaluation mode into an arbitration evaluation mode, the supervisor evaluates the test paper in the arbitration evaluation mode to obtain evaluation data, and the evaluation subsystem uploads the evaluation data to the information management server.
7. The blockchain-based information storage system of claim 5, wherein the review subsystem detects whether a test paper is marked as a question paper by a test person during review of the test paper by the review subsystem by the test person, and if so, the review subsystem sends the question paper to a supervisor who reviews the question paper in the question paper review mode to generate review data and modifies the review mode to the question paper review mode.
8. The blockchain-based information storage system of claim 5 wherein the review subsystem receives review data for the test paper by the test taker if review mode is changed to review mode.
9. The information storage method based on the block chain is characterized by being applied to an information management server in an information storage system based on the block chain, wherein the information storage system further comprises an information recording node, and the information management server and the information recording node construct the block chain in a union chain; the method comprises the following steps:
receiving evaluation data uploaded by the examination staff, and broadcasting the evaluation data to an information recording node, wherein the evaluation data is used for representing the evaluation result of the examination paper after the examination staff performs evaluation on the examination paper;
when detecting that the number of the information recording nodes of the obtained evaluation data reaches a preset number, selecting one information recording node from the information recording nodes of the obtained evaluation data as an accounting node, and distributing a key pair for the accounting node by using a preset algorithm;
and sending the key pair to the accounting node, so that the accounting node encrypts the review data by using a private key of the key pair to obtain transaction data, establishing a block at the tail of the block chain, storing the transaction data and a public key of the key pair into the established block, and broadcasting broadcast information containing the transaction data and the public key to other information recording nodes except the accounting node in the information recording nodes.
10. A server is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor and the communication interface are used for realizing the communication between the processor and the memory through the communication bus;
a memory for storing processor-executable instructions;
a processor adapted to perform the method steps of claim 9 when executing instructions stored on the memory.
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| CN202011611571.0A CN112700244B (en) | 2020-12-30 | 2020-12-30 | Information storage system, method and server based on block chain |
| PCT/CN2021/137490 WO2022143123A1 (en) | 2020-12-30 | 2021-12-13 | Blockchain-based information storage system and method, and server |
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| WO2022143123A1 (en) * | 2020-12-30 | 2022-07-07 | 广东德诚科教有限公司 | Blockchain-based information storage system and method, and server |
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| CN112700244B (en) | 2023-08-15 |
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