CN112700244B - Information storage system, method and server based on block chain - Google Patents
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- CN112700244B CN112700244B CN202011611571.0A CN202011611571A CN112700244B CN 112700244 B CN112700244 B CN 112700244B CN 202011611571 A CN202011611571 A CN 202011611571A CN 112700244 B CN112700244 B CN 112700244B
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Abstract
The embodiment of the invention provides an information storage system, a method and a server based on a blockchain, wherein the system comprises the following components: an information management server and an information recording node, the information management server and the information recording node constructing a blockchain in a alliance 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 realized by combining a blockchain technology, so that the safety of data storage review is ensured.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a block chain based information storage system, method, and server.
Background
In the existing information storage system, information is usually stored in a centralized storage manner, that is, information to be stored is stored in a database.
Since all information is stored in one database, when the database is broken, the information stored in the database is easy to be tampered, so how to ensure the security of information storage is a problem which is widely focused at present.
Disclosure of Invention
The embodiment of the invention aims to provide an information storage system, method and server based on a blockchain so as to realize the guarantee of the safety of information storage. The specific technical scheme is as follows:
in one aspect of an embodiment of the present invention, there is provided a blockchain-based information storage system, the system including: an information management server and an information recording node, wherein the information management server and the information recording node construct a blockchain by a alliance chain;
the information management server receives the evaluation data uploaded by the examination staff and broadcasts the evaluation data to the information recording node, wherein the evaluation data is used for representing the evaluation result of the examination paper after the examination staff evaluates the examination paper;
when the information management server detects that the number of the information recording nodes which acquire the review data reaches a preset number, selecting one information recording node from the information recording nodes which acquire the review data as an accounting node, and distributing a key pair for the accounting node by utilizing a preset algorithm;
the billing node encrypts the evaluation data by utilizing the private key of the key pair to obtain transaction data, establishes a block at the tail of the blockchain, and stores the transaction data and the public key of the key pair into the established block; broadcasting information including the transaction data and a public key to other information recording nodes than the accounting node among the information recording nodes;
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, when the information recording nodes corresponding to the public keys are verified to store the broadcast information, generating a block at the tail of the current block chain, and storing the broadcast information into the generated block.
Optionally, the review data includes: the test staff account number, the test staff name, the examination paper reading time and the examination paper score.
Optionally, the system further comprises: a review subsystem;
and the review subsystem receives review data generated by the review paper of the examination staff and uploads the review data to the information management server.
Optionally, the review mode adopted by the review subsystem for receiving the review data generated by the review paper of the staff includes:
a person review mode, a multi-person review mode, an arbitration review mode, a problem roll review mode, and a review mode.
Optionally, in the case that the review mode is a multi-person 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 test staff 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;
under the condition that the difference value is larger than a preset threshold value, the test paper is sent to a third test staff, the third test paper score obtained by the third test staff in review of the test paper is received, absolute values of the difference values between the third test paper score and the test paper score are calculated respectively, whether smaller absolute values in the calculated absolute values are smaller than the preset threshold value or not is determined, if yes, an average value between the test paper scores corresponding to the smaller absolute values is used as a final test paper score, and review data are uploaded to the information management server; if not, the examination paper is sent to a supervisor by the evaluation subsystem, the evaluation mode is changed into an arbitration evaluation mode, the supervisor evaluates the examination 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 evaluation subsystem detects whether the examination staff marks the examination paper as the problem paper in the process that the examination staff evaluates the examination paper through the evaluation subsystem, if so, the evaluation subsystem sends the problem paper to an attendant and changes the evaluation mode into the problem paper evaluation mode, and the attendant evaluates the problem paper in the problem paper evaluation mode to generate evaluation data.
Optionally, in the case that the review mode is changed to the review mode, the review subsystem receives review data of the test paper by the test staff.
In still another aspect of the implementation of the present invention, there is further provided a blockchain-based information storage method, which is applied to an information management server in a blockchain-based information storage system, where the information storage system further includes an information recording node, and the information management server and the information recording node construct a blockchain in a federated chain; the method comprises the following steps:
receiving evaluation data uploaded by a test staff, and broadcasting the evaluation data to an information recording node, wherein the evaluation data is data used for representing test paper evaluation results after the test paper is evaluated by the test staff;
when the number of the information recording nodes which acquire the review data is detected to reach the preset number, selecting one information recording node from the information recording nodes which acquire the review data as an accounting node, and distributing a key pair for the accounting node by utilizing a preset algorithm;
and sending the key pair to the billing node so that the billing node encrypts the evaluation data by utilizing the private key of the key pair to obtain transaction data, building a block at the chain tail of the blockchain, storing the transaction data and the public key of the key pair into the built block, and broadcasting information containing the transaction data and the public key to other information recording nodes except the billing node in the information recording nodes.
In still another aspect of the present invention, a server is provided, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;
a memory for storing processor-executable instructions;
and the processor is used for realizing a block chain-based information storage method when executing the instructions stored in the memory.
The information storage system, the information storage method and the information storage server based on the blockchain, which are provided by the embodiment of the invention, are characterized in that an information management server receives review data uploaded by a test staff and broadcasts the review data to an information recording node; when the information management server detects that the number of the information recording nodes which acquire the review data reaches a preset number, selecting one information recording node from the information recording nodes which acquire the review data as an accounting node, and distributing a key pair for the accounting node by utilizing a preset algorithm; 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 chain tail of the block chain, and stores the transaction data and a public key of the key pair into the established block; broadcasting information including transaction data and a public key to other information recording nodes than the accounting node among the information recording nodes; the 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 realized by combining a blockchain technology, so that the safety of data storage review is ensured.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a block chain based information storage system according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a block chain based information storage method 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 following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a schematic structural diagram of a block chain-based information storage system according to an embodiment of the present invention is provided, where the system includes: an information management server and an information recording node, wherein the information management server and the information recording node construct a blockchain by a alliance chain;
and the information management server receives the review data uploaded by the examination staff and broadcasts the review data to the information recording node.
In practice, the review data is data representing the result of the review of the test paper after the review of the test paper by the test staff.
In implementations, reviewing the data may include: the examination staff account number, the examination staff name, the examination paper reading time, the examination paper score and other information.
In one implementation, the information storage system may further include: and (5) a review subsystem. In implementations, the review subsystem may upload review data to the information management server after receiving the review data generated by the review paper of the staff.
When the information management server detects that the number of the information recording nodes which acquire the review data reaches the preset number, one information recording node is selected from the information recording nodes which acquire the review data as an accounting node, and a key pair is distributed for the accounting node by utilizing a preset algorithm.
In implementation, the preset number may be: 3. that is, when the information management server detects that the number of information recording nodes of the acquired review data reaches 3, one information recording node is selected as an accounting node from among the 3 information recording nodes of the acquired review data.
In particular, when selecting the billing node, a random algorithm may be employed to select the billing node.
In implementations, an asymmetric encryption algorithm may be utilized to assign key pairs to the accounting nodes.
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 chain tail of the block chain, and stores the transaction data and a public key of the key pair into the established block; broadcasting information including transaction data and a public key to other information recording nodes than the billing node among the information recording nodes.
In practice, each block records the hash information of the last block, and the hash information is permanently stored, so that the modification of the data by a single information recording node is invalid. The account book information with the largest number of information recording nodes for recording the same review data is true information, and the account book information with a small number of inconsistent account book information with other nodes is false information. If two or more accounting nodes recording the same maximum amount of account book information exist, the account book information is judged as false information, the corresponding accounting node is judged as an invalid node, and the review subsystem is requested to send review data again.
The 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 tail of the current blockchain when verifying that the information recording node corresponding to the public key stores the broadcast information, and store the broadcast information into the generated block.
In one implementation, the review mode employed by the review subsystem to receive review data generated by a review paper of a test staff may include:
a person review mode, a multi-person review mode, an arbitration review mode, a problem roll review mode, and a review mode.
Specifically, a person reviews the test paper in a review mode, that is, by a test staff.
In the case that the review mode is a multi-person review mode, a process of uploading review data to the information management server by the review subsystem includes:
the review subsystem acquires the test paper scores obtained by two test staff reviewing 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 review data to the information management server;
under the condition that the difference value is larger than a preset threshold value, sending the test paper to a third examination staff, receiving a third party examination paper score obtained by the examination paper review of the third examination staff, respectively calculating absolute values of the difference values between the third party examination paper score and the examination paper score, determining whether smaller absolute values in the calculated absolute values are smaller than the preset threshold value, if so, taking an average value between the examination paper scores corresponding to the smaller absolute values as a final examination paper score, and uploading review data to an information management server;
for example, the examination scores of the first two examination staff for examination papers are respectively: 90. 96. The third examination staff reviews the examination paper to obtain the third party examination paper score which is: 94. the absolute value of the difference between 94 and 90, 96 is calculated to be 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 examination paper is sent to the supervisor by the examination subsystem, the examination mode is modified into an arbitration examination mode, the examination staff examines the examination paper in the arbitration examination mode to obtain examination data, and the examination subsystem uploads the examination data to the information management server.
In practice, the proctoring staff, i.e. the staff who is more authorized in the academic world than the examination staff, may be, for example, the subject team leader.
And the review subsystem detects whether the test paper is marked as the problem paper by the examination staff in the process of evaluating the test paper by the examination staff through the review subsystem, and if so, the review subsystem sends the problem paper to the supervisor and changes the review mode into the problem paper review mode, and the supervisor reviews the problem paper in the problem paper review mode to generate review data.
Namely, when the examination staff has a question on the examination paper, the examination paper can be reviewed by a supervisor, and the accuracy of the review information is ensured.
When the review mode is changed to the review mode, that is, when the test paper needs to be reviewed again by the examination staff, the review mode can be selected, and in this case, the review subsystem receives the review data of the test paper by the examination staff.
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 realized by combining a blockchain technology, so that the safety of data storage review is ensured.
Referring to fig. 2, a flow chart of a block chain based information storage method provided by an embodiment of the present invention is applied to an information management server in a block chain based information storage system, 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 with a coalition chain; the method comprises the following steps:
s200, receiving review data uploaded by a test staff, and broadcasting the review data to an information recording node, wherein the review data is data used for representing the review result of the test paper after the test staff reviews the test paper;
s210, when the number of the information recording nodes which acquire the review data is detected to reach the preset number, selecting one information recording node from the information recording nodes which acquire the review data as an accounting node, and distributing a key pair for the accounting node by utilizing a preset algorithm;
s220, the key pair is sent to the billing node, so that the billing node encrypts the evaluation data by utilizing the private key of the key pair to obtain transaction data, a block is built at the chain tail of the blockchain, the transaction data and the public key of the key pair are stored in the built block, and broadcast information containing the transaction data and the public key is broadcast to other information recording nodes except the billing 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 realized by combining a blockchain technology, so that the safety of data storage review is ensured.
The embodiment of the invention also provides a server, as shown in fig. 3, which comprises a processor 001, a communication interface 002, a memory 003 and a communication bus 004, wherein the processor 001, the communication interface 002 and the memory 003 complete communication with each other through the communication bus 004,
a memory 003 for storing processor-executable instructions;
a processor 001 for implementing any of the above blockchain-based information storage methods when executing instructions stored on a memory, the method comprising:
receiving evaluation data uploaded by a test staff, and broadcasting the evaluation data to an information recording node, wherein the evaluation data is data used for representing test paper evaluation results after the test paper is evaluated by the test staff;
when the number of the information recording nodes which acquire the review data is detected to reach the preset number, selecting one information recording node from the information recording nodes which acquire the review data as an accounting node, and distributing a key pair for the accounting node by utilizing a preset algorithm;
and sending the key pair to the billing node so that the billing node encrypts the evaluation data by utilizing the private key of the key pair to obtain transaction data, building a block at the chain tail of the blockchain, storing the transaction data and the public key of the key pair into the built block, and broadcasting information containing the transaction data and the public key to other information recording nodes except the billing 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 realized by combining a blockchain technology, so that the safety of data storage review is ensured.
The communication bus mentioned above for the electronic devices may be a peripheral component interconnect standard (Peripheral Component Interconnect, PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface is used for communication between the electronic device and other devices.
The Memory may include random access Memory (Random Access Memory, RAM) or may include 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 aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU), a network processor (Network Processor, NP), etc.; but also digital signal processors (Digital Signal Processing, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
In the above embodiments, it may be implemented in whole or in part 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, produces a flow or function in accordance with embodiments of the present invention, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more 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)), etc.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In this specification, each embodiment is described in a related manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the method, server embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.
Claims (8)
1. A blockchain-based information storage system, the system comprising: an information management server and an information recording node, wherein the information management server and the information recording node construct a blockchain by a alliance chain;
the information management server receives the evaluation data uploaded by the examination staff and broadcasts the evaluation data to the information recording node, wherein the evaluation data is used for representing the evaluation result of the examination paper after the examination staff evaluates the examination paper;
when the information management server detects that the number of the information recording nodes which acquire the review data reaches a preset number, selecting one information recording node from the information recording nodes which acquire the review data as an accounting node, and distributing a key pair for the accounting node by utilizing a preset algorithm;
the billing node encrypts the evaluation data by utilizing the private key of the key pair to obtain transaction data, establishes a block at the tail of the blockchain, and stores the transaction data and the public key of the key pair into the established block; broadcasting information including the transaction data and a public key to other information recording nodes than the accounting node among the information recording nodes;
the other information recording nodes receive and record the broadcast information;
wherein the system further comprises: the evaluation subsystem receives evaluation data generated by the examination paper of the examination staff and uploads the evaluation data to the information management server;
the review mode adopted by the review subsystem for receiving the review data generated by the review paper of the examination staff comprises the following steps: and a multi-person review mode, wherein when the review mode is the multi-person review mode, the process of uploading the review data to the information management server by the review subsystem comprises the following steps: the evaluation subsystem acquires the test paper scores obtained by two test staff 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; under the condition that the difference value is larger than a preset threshold value, the test paper is sent to a third test staff, the third test paper score obtained by the third test staff in review of the test paper is received, absolute values of the difference values between the third test paper score and the test paper score are calculated respectively, whether smaller absolute values in the calculated absolute values are smaller than the preset threshold value or not is determined, if yes, an average value between the test paper scores corresponding to the smaller absolute values is used as a final test paper score, and review data are uploaded to the information management server; if not, the examination paper is sent to a supervisor by the evaluation subsystem, the evaluation mode is changed into an arbitration evaluation mode, the supervisor evaluates the examination paper in the arbitration evaluation mode to obtain evaluation data, and the evaluation subsystem uploads the evaluation data to the information management server.
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, when the information recording nodes corresponding to the public keys are verified to store the broadcast information, generating a block at the tail of the current block chain, and storing the broadcast information into the generated block.
3. The blockchain-based information storage system of claim 1, wherein reviewing the data includes: the test staff account number, the test staff name, the examination paper reading time and the examination paper score.
4. The blockchain-based information storage system of claim 1, wherein the review subsystem receives review patterns employed by the review subsystem to review the generated review data of the test paper by the staff member further comprises:
a person review mode, an arbitration review mode, a problem roll review mode, and a review mode.
5. The blockchain-based information storage system of claim 4, wherein the review subsystem detects whether the test paper is marked as a problem paper by a test staff during review of the test paper by the review subsystem, and if so, the review subsystem sends the problem paper to a supervisor and changes a review mode to a problem paper review mode, and the supervisor reviews the problem paper in the problem paper review mode to generate review data.
6. The blockchain-based information storage system of claim 4, wherein the review subsystem receives review data of the test paper by the staff member in the event that the review mode is changed to a review mode.
7. An information storage method based on a blockchain is characterized by being applied to an information management server in an information storage system based on the blockchain, wherein the information storage system further comprises an information recording node, and the information management server and the information recording node construct the blockchain by a alliance chain; the method comprises the following steps:
receiving evaluation data uploaded by a test staff, and broadcasting the evaluation data to an information recording node, wherein the evaluation data is data used for representing test paper evaluation results after the test paper is evaluated by the test staff;
when the number of the information recording nodes which acquire the review data is detected to reach the preset number, selecting one information recording node from the information recording nodes which acquire the review data as an accounting node, and distributing a key pair for the accounting node by utilizing a preset algorithm;
transmitting the key pair to the billing node, so that the billing node encrypts the evaluation data by using a private key of the key pair to obtain transaction data, establishing a block at the chain tail of the blockchain, storing the transaction data and a public key of the key pair into the established block, and broadcasting information comprising the transaction data and the public key to other information recording nodes except the billing node in the information recording nodes;
wherein the method further comprises: receiving the review data generated by the review paper of the examination staff through a review subsystem, and uploading the review data to the information management server;
the review mode adopted by the review subsystem for receiving the review data generated by the review paper of the examination staff comprises the following steps: and a multi-person review mode, wherein when the review mode is the multi-person review mode, the process of receiving review data generated by the review paper of the examination staff through the review subsystem and uploading the review data to the information management server comprises the following steps: the evaluation subsystem acquires the test paper scores obtained by two test staff 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; under the condition that the difference value is larger than a preset threshold value, the test paper is sent to a third test staff, the third test paper score obtained by the third test staff in review of the test paper is received, absolute values of the difference values between the third test paper score and the test paper score are calculated respectively, whether smaller absolute values in the calculated absolute values are smaller than the preset threshold value or not is determined, if yes, an average value between the test paper scores corresponding to the smaller absolute values is used as a final test paper score, and review data are uploaded to the information management server; if not, the examination paper is sent to a supervisor by the evaluation subsystem, the evaluation mode is changed into an arbitration evaluation mode, the supervisor evaluates the examination paper in the arbitration evaluation mode to obtain evaluation data, and the evaluation subsystem uploads the evaluation data to the information management server.
8. The server is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing processor-executable instructions;
a processor for performing the method steps of claim 7 when executing instructions stored on a 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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| CN112700244B (en) * | 2020-12-30 | 2023-08-15 | 广东德诚科教有限公司 | Information storage system, method and server based on block chain |
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