CN112835906B - Block chain-based data management method, device, system, equipment and medium - Google Patents
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Abstract
The embodiment of the application provides a data management method, a device, a system, equipment and a medium based on a block chain; the method comprises the following steps: receiving a data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database; storing the data index and the data hash of the target data into a hash mapping table in a block chain and a hash relation table in a preset database, and recovering a flag bit of a hash relation table correlation trigger in the preset database; receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table; if the first data hash is the same as the second data hash, the target data is used as a query result and output; the data query method and the data query device ensure data query efficiency and data security.
Description
Technical Field
The present application relates to the field of blockchain technologies, and in particular, to a method, an apparatus, a system, a device, and a medium for data management based on blockchains.
Background
With the rapid development of computer technology, the data volume is larger and larger, the preset database system is used as the foundation and support for data storage and processing, and the safety and the high efficiency of the preset database system have great significance for developing novel infrastructure construction and exerting data basic resources.
At present, data are stored in a preset database, the data indexes and the data hash chaining mode are stored, during inquiry, the data indexes of a block chain are obtained, then the preset database is inquired according to the indexes, target data corresponding to the data indexes are obtained, data hashes of the target data are generated, the generated data hashes are compared with the data hashes stored in the block chain, and therefore data safety is guaranteed.
Disclosure of Invention
The application provides a data management method, a device, a system, equipment and a medium based on a block chain, and aims to solve the technical problem that data security is low due to the fact that data query efficiency is low, a preset database cannot be found illegally in time, and the data security is low.
In one aspect, the present application provides a data management method based on a block chain, where the data management method based on the block chain includes the following steps:
receiving a data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database;
storing the data index and the data hash of the target data to a hash mapping table in a block chain;
when the data index and the data hash of the target data are linked up, storing the data index and the data hash of the target data into a hash relation table in a preset database, and recovering a flag bit of a hash relation table association trigger in the preset database;
receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table;
and if the first data hash is the same as the second data hash, taking the target data as a query result and outputting the query result.
In some embodiments of the present application, before receiving a data storage event, adjusting a flag bit of a hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event in the preset database, the method includes:
receiving a configuration event, and outputting a configuration page for a user to set a trigger of a preset database;
and acquiring a configured trigger of the preset database, and associating the trigger with the hash relation table of the preset database so as to maintain the hash relation table of the preset database through the trigger.
In some embodiments of the present application, the receiving a data query event, obtaining target data in the preset database hash relationship table and a first data hash of the target data, and obtaining a second data hash in the block chain hash mapping table includes:
receiving a data query event, and acquiring a data index associated with the data query event;
inquiring the preset database according to the data index, and acquiring target data corresponding to the data index in the preset database and a first data hash corresponding to the data index in the hash relation table;
and querying the block chain according to the data index to obtain a second data hash corresponding to the data index in the hash mapping table.
In some embodiments of the present application, after receiving a data query event, obtaining target data in the preset database hash relationship table and a first data hash of the target data, and obtaining a second data hash in the block chain hash mapping table, the method includes:
comparing the first data hash and the second data hash;
and if the first data hash is different from the second data hash, outputting prompt information of data abnormity.
In some embodiments of the present application, after the data index and the data hash of the target data are linked up, the data index and the data hash of the target data are stored in the hash relation table in the preset database, and the flag bit of the hash relation table association trigger in the preset database is recovered, the method includes:
receiving a data updating event, and acquiring updating data to be updated related to the data updating event, and a data index and a data hash of the updating data;
adjusting the flag bit of the Hash relation table association trigger in the preset database, and updating the updated data to the preset database;
updating the data index and the data hash of the updated data to a hash mapping table in a block chain;
and when the data index and the data hash chaining of the updated data are detected, storing the data index and the data hash of the updated data to a hash relation table in the preset database, and recovering a flag bit of a hash relation table association trigger in the preset database.
In some embodiments of the present application, after receiving a data storage event, adjusting a flag bit of a hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event in the preset database, the method includes:
monitoring the state of a Hash relation table association trigger in the preset database, and judging whether the state of the Hash relation table association trigger is recovered in a preset time period;
and if the state of the hash relation table association trigger is not recovered in a preset time period, outputting an abnormal prompt.
In another aspect, the present application provides a block chain-based data management apparatus, including:
the state adjusting module is used for receiving a data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database;
the data uplink module is used for storing the data index and the data hash of the target data to a hash mapping table in a block chain;
the state recovery module is used for storing the data index and the data hash of the target data to a hash relation table in the preset database and recovering a flag bit of a hash relation table association trigger in the preset database when the data index and the data hash of the target data are linked;
the data query module is used for receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table;
and the data output module is used for taking the target data as a query result and outputting the query result if the first data hash is the same as the second data hash.
On the other hand, the application provides a data management system based on a block chain, the data management system based on the block chain comprises a certificate storage platform, a preset database platform and a block chain, wherein the certificate storage platform is in communication connection with the preset database platform, and the data management system based on the block chain executes the following steps:
the evidence storage platform is used for receiving a data storage event and forwarding the data storage event to the preset database platform and the block chain;
the preset database platform is used for receiving the data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database;
the block chain is used for receiving the data storage event and storing the data index and the data hash of the target data to a hash mapping table in the block chain;
the preset database platform is used for storing the data index and the data hash of the target data to a hash relation table in the preset database and recovering a flag bit of a hash relation table association trigger in the preset database when the data index and the data hash of the target data are linked;
the evidence storage platform is used for receiving a data query event and sending the data query event to the preset database platform and the block chain;
the preset database platform is used for receiving the data query event, acquiring a data index associated with the data query event, acquiring target data and first data hash associated with the data index in the hash relation table and sending the target data and the first data hash to the evidence storage platform;
the block chain is used for receiving the data query event, acquiring a data index associated with the query event, acquiring a second data hash associated with the data index in the hash mapping table and sending the second data hash to the evidence storage platform;
the evidence storage platform is used for receiving the target data sent by the preset database platform and the first data hash of the target data and receiving the second data hash sent by the block chain;
and the evidence storage platform is used for taking the target data as a query result and outputting the query result if the first data hash is the same as the second data hash.
On the other hand, the present application further provides a data management device based on a block chain, where the data management device based on a block chain includes:
one or more processors;
a memory; and
one or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the blockchain based data management method.
In another aspect, the present application further provides a medium, on which a computer program is stored, where the computer program is loaded by a processor to execute the steps in the data management method based on the block chain.
In the embodiment of the application, the trigger is arranged to monitor the preset database, when the target data is stored and operated, the zone bit of the trigger is adjusted, after the data index and the data hash of the target data are linked, the zone bit of the trigger is recovered, so that the data updating condition in the preset database can be determined according to the state of the trigger, the illegal modification of the data in the preset database is prevented, the data security of the preset database is ensured, hash calculation is not needed to be carried out on the data when the data is inquired, the data inquiry efficiency is improved, meanwhile, traceability and non-tampering of the block chain ensure the security of the initial data, data verification is conveniently carried out, and the data management in the preset database is more reasonable.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of a scenario of block chain-based data management provided in an embodiment of the present application;
FIG. 2 is a flowchart illustrating an embodiment of a block chain-based data management method provided in an embodiment of the present application;
fig. 3 is a schematic flowchart of an embodiment of a data exception prompt in the data management method based on a blockchain provided in the embodiment of the present application;
FIG. 4 is a flowchart illustrating an embodiment of data update in the method for block chain-based data management provided in the embodiment of the present application;
fig. 5 is a schematic flowchart of an embodiment of a trigger status snoop in the data management method based on the block chain provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of an embodiment of a data management apparatus based on a block chain provided in an embodiment of the present application;
FIG. 7 is a schematic diagram illustrating a block chain-based data management system according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an embodiment of a data management device based on a block chain provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, 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 inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
Embodiments of the present application provide a method, an apparatus, a system, a device, and a medium for block chain-based data management, which are described in detail below.
The data management method based on the block chain is applied to a data management device based on the block chain, the data management device based on the block chain is arranged on data management equipment based on the block chain, one or more processors, a memory and one or more application programs are arranged in the data management equipment based on the block chain, and the one or more application programs are stored in the memory and are configured to be executed by the processor to realize the data management method based on the block chain; the data management device based on the blockchain may be a terminal, for example, a mobile phone or a tablet computer, and the data management device based on the blockchain may also be a server or a service cluster formed by multiple servers.
As shown in fig. 1, fig. 1 is a schematic view of a scenario of data management based on a block chain according to an embodiment of the present disclosure, where the scenario of data management based on a block chain in the embodiment of the present disclosure includes a data management device 100 based on a block chain (a data management apparatus based on a block chain is integrated in the data management device 100 based on a block chain), and a medium corresponding to data management based on a block chain is run in the data management device 100 based on a block chain, so as to perform a step of data management based on a block chain.
It should be understood that the data management device based on the block chain in the scenario of data management based on the block chain shown in fig. 1, or the apparatus included in the data management device based on the block chain, does not constitute a limitation to the embodiment of the present invention, that is, the number of devices, the system, and the kind of devices included in the scenario of data management based on the block chain, or the number of apparatuses and the kind of apparatuses included in each device do not affect the overall implementation of the technical solution in the embodiment of the present invention, and may be calculated as an equivalent replacement or derivative of the technical solution claimed in the embodiment of the present invention.
The data management device 100 based on the block chain in the embodiment of the present invention is mainly used for:
receiving a data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database;
storing the data index and the data hash of the target data to a hash mapping table in a block chain;
when the data index and the data hash of the target data are linked up, storing the data index and the data hash of the target data into a hash relation table in a preset database, and recovering a flag bit of a hash relation table association trigger in the preset database;
receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table;
and if the first data hash is the same as the second data hash, taking the target data as a query result and outputting the query result.
The data management device 100 based on the blockchain in the embodiment of the present invention may be an independent data management device based on the blockchain, or may be a network of data management devices based on the blockchain or a cluster of data management devices based on the blockchain, for example, the data management device 100 based on the blockchain described in the embodiment of the present invention includes, but is not limited to, a computer, a network host, a single network data management device based on the blockchain, a plurality of network data management device sets based on the blockchain, or a cloud data management device based on the blockchain, which is formed by a plurality of data management devices based on the blockchain. Wherein, the Cloud block chain-based data management device is composed of a large number of computers based on Cloud Computing (Cloud Computing) or a network block chain-based data management device.
Those skilled in the art can understand that the application environment shown in fig. 1 is only one application scenario related to the present application scheme, and does not constitute a limitation on the application scenario of the present application scheme, and that other application environments may further include more or less data management devices based on a blockchain than that shown in fig. 1, or a network connection relationship of the data management devices based on the blockchain, for example, only 1 data management device based on a blockchain is shown in fig. 1, and it can be understood that the scenario of data management based on a blockchain may further include one or more other data management devices based on a blockchain, which is not limited herein specifically; the block chain based data management device 100 may further include a memory therein.
In addition, in the scenario of the data management based on the block chain, the data management apparatus 100 based on the block chain may be provided with a display device, or the data management apparatus 100 based on the block chain is not provided with a display device in communication connection with an external display device 200, and the display device 200 is configured to output a result of execution of the data management method based on the block chain in the data management apparatus based on the block chain. The data management device 100 based on the blockchain may access the background preset database 300, where the background preset database 300 may be in a local memory of the data management device based on the blockchain, the background preset database may also be set in a cloud, and the background preset database 300 stores information related to data management based on the blockchain.
It should be noted that the scenario diagram of data management based on a block chain shown in fig. 1 is only an example, and the scenario of data management based on a block chain described in the embodiment of the present invention is for more clearly illustrating the technical solution of the embodiment of the present invention, and does not form a limitation on the technical solution provided by the embodiment of the present invention.
Based on the above scenario of data management based on a block chain, an embodiment of a data management method based on a block chain is provided.
Referring to fig. 2, fig. 2 is a schematic flowchart illustrating an embodiment of a block chain-based data management method in the present application, where the block chain-based data management method includes steps 201 and 205:
201, receiving a data storage event, adjusting a flag bit of a hash relation table associated trigger in a preset database, and storing target data to be stored in the data storage event to the preset database.
The data management method based on the block chain in this embodiment is applied to the data management device, and the type of the data management device is not specifically limited; in this embodiment, a trigger is set in a preset database, the trigger is used as a trigger for data, and if data is modified, the trigger modifies the state of a flag bit of the trigger correspondingly, so that the data modification condition can be checked in time, and the data security is guaranteed.
Before step 201 of this embodiment, the data management device presets a configuration trigger, and the step of configuring the trigger in this embodiment includes:
(1) receiving a configuration event and outputting a configuration page for a user to set a trigger of a preset database;
(2) and acquiring a configured trigger of the preset database, and associating the trigger with the hash relation table of the preset database so as to maintain the hash relation table of the preset database through the trigger.
The data management device receives a configuration event, wherein the triggering mode of the configuration event is not specifically limited, after the data management device receives the configuration event, the data management device outputs a configuration page for a user to configure a monitoring event of a preset database in the configuration page, and the data management device integrates the monitoring event to generate a trigger; the data management equipment acquires the configured trigger and associates the trigger with the hash relation table of the preset database, so that the trigger can monitor the updating condition of the preset database, update the hash relation table of the preset database in time and maintain the hash relation table of the preset database.
In this embodiment, an operation event of the preset database is monitored through the trigger, where the operation event includes a storage event, an update event, a query event, and the like, so as to maintain the hash relationship table of the preset database according to the operation event, specifically:
the data management device receives a data storage event, wherein the data storage event can be actively triggered by a user, for example, the user clicks a 'xxx storage' button on a display interface of the data management device to actively trigger the data storage event; in addition, the data storage event may also be automatically triggered by the data management device, for example, the triggering condition of the data storage event preset in the data management device is as follows: when generating service data; the data management equipment updates the service in real time, and detects a data storage event automatically triggered when the data management equipment generates service data; for another example, the triggering conditions of the data storage event preset in the data management device are as follows: and the data management device automatically triggers a data storage event every morning.
After the data management device receives a data storage event, the data management device adjusts the flag bit of the hash table association trigger in the preset database, that is, the trigger sets two flag bits, which are an adjusted state and a recovered state respectively, the adjusted state indicates that the data in the preset database is in a modified state, the recovered state indicates that the preset database is in a normal state, and no data modification occurs.
202, storing the data index and the data hash of the target data to a hash mapping table in a block chain.
After the data management equipment stores the target data in a preset database, the data management equipment determines a data index of the target data according to the storage position of the target data and performs hash conversion on the target data to obtain data hash of the target data; the data management device stores the data index and the data hash of the target data to a hash mapping table in the block chain so as to record the source tracing information of the target data through the block chain.
203, when the data index and the data hash of the target data are linked up, storing the data index and the data hash of the target data to the hash relation table in the preset database, and recovering the flag bit of the hash relation table association trigger in the preset database.
The data management equipment detects the data index and the data hash cochain condition of target data in real time, when the data management equipment detects the data index and the data hash cochain condition of the target data, the data management equipment stores the data index and the data hash of the target data to a hash relation table in a preset database, and after the hash relation table of the preset database is updated, the data management equipment recovers a flag bit of a hash relation table association trigger in the preset database so as to update and maintain the data relation table in the preset database.
204, receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table.
The data management device receives a data query event, where a triggering manner of the data query event is not specifically limited, and after the data management device receives the data query event, the data management device queries a preset database and a block chain to obtain a query result, and specifically, step 204 includes:
(1) receiving a data query event, and acquiring a data index associated with the data query event;
(2) querying the preset database according to the data index, and acquiring target data corresponding to the data index in the preset database and a first data hash corresponding to the data index in the hash relation table;
(3) and inquiring the block chain according to the data index to obtain a second data hash corresponding to the data index in the hash mapping table.
The data management equipment receives a data query event, and acquires a data index associated with the data query event; the data management equipment queries the preset database according to the data index, and acquires target data corresponding to the data index in the preset database and a first data hash corresponding to the data index in the hash relation table; and the data management equipment queries the block chain according to the data index and acquires a second data hash corresponding to the data index in the hash mapping table.
And 205, if the first data hash is the same as the second data hash, taking the target data as a query result and outputting the query result.
After the data management device obtains the first data hash and the second data hash, the data management device compares whether the first data hash is the same as the second data hash; and if the first data hash is the same as the second data hash, the data management equipment judges that the data in the preset database are normal, and the data management equipment takes the target data as a query result and outputs the query result.
In the embodiment of the application, the trigger is arranged to monitor the preset database, when the target data is stored and operated, the zone bit of the trigger is adjusted, after the data index and the data hash of the target data are linked, the zone bit of the trigger is recovered, so that the data updating condition in the preset database can be determined according to the state of the trigger, the illegal modification of the data in the preset database is prevented, the data security of the preset database is ensured, hash calculation is not needed to be carried out on the data when the data is inquired, the data inquiry efficiency is improved, meanwhile, traceability and non-tampering of the block chain ensure the security of the initial data, data verification is conveniently carried out, and the data management in the preset database is more reasonable.
Referring to fig. 3, fig. 3 is a schematic flowchart of an embodiment of a data exception prompt in the data management method based on a block chain provided in the embodiment of the present application;
in some embodiments of the present application, after acquiring the first data hash and the second data hash, the data management device in the data management method based on the block chain performs data hash comparison to output a data query result, specifically, the method includes steps 301 and 302:
301, comparing the first data hash and the second data hash;
302, if the first data hash is different from the second data hash, outputting a prompt message of data exception.
The data management device compares the first data hash with the second data hash; and if the first data hash is different from the second data hash, the data management equipment judges that the data in the preset database is illegally modified, and then prompt information of data abnormity is output.
In this embodiment, the data management device compares a first data hash corresponding to the preset database with a second data hash corresponding to the block chain, determines whether the data in the preset database is illegally modified, and prompts the data when the data is abnormal, so as to ensure the security of the data in the preset database.
Referring to fig. 4, fig. 4 is a schematic flowchart of an embodiment of data update in the data management method based on the blockchain provided in the embodiment of the present application.
In some embodiments of the present application, the data updating in the block chain-based data management method specifically includes steps 401 and 404:
401, receiving a data update event, and acquiring update data to be updated associated with the data update event, and a data index and a data hash of the update data.
The data management equipment receives the data updating event, acquires the updating data to be updated related to the data updating event, and the data index and the data hash of the updating data, namely, the data management equipment determines the data index of the updating data and performs hash conversion on the updating data to obtain the data hash of the updating data.
And 402, adjusting the flag bit of the Hash relation table association trigger in the preset database, and updating the updated data to the preset database.
When the data management equipment monitors a data updating event, the data management equipment adjusts the zone bit of the Hash relation table association trigger in the preset database and updates the updating data to the preset database.
And 403, updating the data index and the data hash of the updated data to a hash mapping table in the block chain.
404, when detecting the data index and the data hash chaining of the updated data, storing the data index and the data hash of the updated data to the hash relation table in the preset database, and recovering the flag bit of the hash relation table association trigger in the preset database.
The data management equipment updates the data index and the data hash of the updated data to a hash mapping table in the block chain; when the data management equipment detects that the data index and the data hash of the updated data are linked up, the data management equipment stores the data index and the data hash of the updated data into the hash relation table in the preset database and recovers the flag bit of the hash relation table association trigger in the preset database.
In this embodiment, the data management device dynamically adjusts the flag bit of the trigger according to the monitored data update event, so as to update the update data in the preset database, update the data index and the data hash corresponding to the data in the update block chain, and finally update the data index and the data hash corresponding to the update data in the hash relationship table in the preset database, thereby avoiding a data update error and ensuring the security of data update in the preset database.
Referring to fig. 5, fig. 5 is a schematic flowchart of an embodiment of a trigger status snoop in the data management method based on a block chain provided in the embodiment of the present application.
In some embodiments of the present application, after the state of the trigger in the data management method based on the block chain is adjusted, an embodiment of monitoring whether the trigger is recovered and performing a prompt is performed, specifically, includes steps 501 and 502:
501, monitoring the state of a Hash relation table association trigger in the preset database, and judging whether the state of the Hash relation table association trigger is recovered in a preset time period;
502, if the state of the hash relation table association trigger is not recovered in a preset time period, outputting an exception prompt.
After the state of the hash relation table association trigger is adjusted, the data management equipment monitors the state of the hash relation table association trigger in the preset database and judges whether the state of the hash relation table association trigger is recovered in a preset time period, wherein the preset time period is time required by normal data modification, for example, the preset time period is set to be 30 seconds; if the state of the hash relation table association trigger is recovered in a preset time period, the data management equipment does not process the state; and if the state of the hash relation table association trigger is not recovered in a preset time period, the data management equipment outputs an abnormal prompt.
In this embodiment, the data management device monitors the state of the trigger, and when the trigger is not recovered for a long time, the data management device prompts, so that a user can check the state of data in a preset database in time, data attack is avoided, and data security is ensured.
As shown in fig. 6, fig. 6 is a schematic structural diagram of an embodiment of a data management apparatus based on a block chain.
In order to better implement the data management method based on the blockchain in the embodiment of the present application, on the basis of the data management method based on the blockchain, an embodiment of the present application further provides a data management device based on the blockchain, where the data management device based on the blockchain includes:
a state adjusting module 601, configured to receive a data storage event, adjust a flag bit of a hash relation table association trigger in a preset database, and store target data to be stored in the data storage event in the preset database;
a data chaining module 602, configured to store the data index and the data hash of the target data in a hash mapping table in a block chain;
a state recovery module 603, configured to store the data index and the data hash of the target data to a hash relation table in the preset database and recover a flag bit of a hash relation table association trigger in the preset database when the data index and the data hash of the target data are linked up;
a data query module 604, configured to receive a data query event, obtain target data in the preset database hash relationship table and a first data hash of the target data, and obtain a second data hash in the block chain hash mapping table;
a data output module 605, configured to take the target data as a query result and output the query result if the first data hash is the same as the second data hash.
In some embodiments of the present application, the device for block chain-based data management includes:
receiving a configuration event, and outputting a configuration page for a user to set a trigger of a preset database;
and acquiring a configured trigger of the preset database, and associating the trigger with the hash relation table of the preset database so as to maintain the hash relation table of the preset database through the trigger.
In some embodiments of the present application, the data query module 604 includes:
receiving a data query event, and acquiring a data index associated with the data query event;
inquiring the preset database according to the data index, and acquiring target data corresponding to the data index in the preset database and a first data hash corresponding to the data index in the hash relation table;
and querying the block chain according to the data index to obtain a second data hash corresponding to the data index in the hash mapping table.
In some embodiments of the present application, the device for block chain-based data management includes:
comparing the first data hash and the second data hash;
and if the first data hash is different from the second data hash, outputting prompt information of data abnormity.
In some embodiments of the present application, the device for block chain-based data management includes:
receiving a data updating event, and acquiring updating data to be updated related to the data updating event, and a data index and a data hash of the updating data;
adjusting the flag bit of the Hash relation table association trigger in the preset database, and updating the updated data to the preset database;
updating the data index and the data hash of the updated data to a hash mapping table in a block chain;
and when the data index and the data hash chaining of the updated data are detected, storing the data index and the data hash of the updated data to a hash relation table in the preset database, and recovering a flag bit of a hash relation table association trigger in the preset database.
In some embodiments of the present application, the device for block chain-based data management includes:
monitoring the state of a Hash relation table association trigger in the preset database, and judging whether the state of the Hash relation table association trigger is recovered in a preset time period;
and if the state of the hash relation table association trigger is not recovered in a preset time period, outputting an abnormal prompt.
In the embodiment of the application, a trigger is arranged in the data management device based on the block chain to monitor the preset database, when target data are stored and operated, the zone bit of the trigger is adjusted, after the data index of the target data and the data hash are linked, the zone bit of the trigger is recovered, so that the data updating condition in the preset database can be determined according to the state of the trigger, the illegal modification of the data in the preset database is prevented, the data safety of the preset database is ensured, hash calculation is not required to be carried out on the data when the data are inquired, the data inquiry efficiency is improved, meanwhile, the traceability and the non-falsification of the block chain ensure the safety of the initial data, the data verification is convenient, and the data management in the preset database is more reasonable.
An embodiment of the present invention further provides a data management system based on a block chain, as shown in fig. 7, fig. 7 is a scene schematic diagram of an embodiment of the data management system based on a block chain provided in this embodiment of the present application.
In this embodiment, the data management system based on the blockchain includes a certificate storage platform, a preset database platform, and a blockchain, which are in communication connection, and the data management system of the blockchain executes the following steps:
the evidence storage platform is used for receiving a data storage event and forwarding the data storage event to the preset database platform and the block chain;
the preset database platform is used for receiving the data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database;
the block chain is used for receiving the data storage event and storing the data index and the data hash of the target data to a hash mapping table in the block chain;
the preset database platform is used for storing the data index and the data hash of the target data to a hash relation table in the preset database and recovering a flag bit of a hash relation table association trigger in the preset database when the data index and the data hash of the target data are linked;
the evidence storage platform is used for receiving a data query event and sending the data query event to the preset database platform and the block chain;
the preset database platform is used for receiving the data query event, acquiring a data index associated with the data query event, acquiring target data and first data hash associated with the data index in the hash relation table and sending the target data and the first data hash to the evidence storage platform;
the block chain is used for receiving the data query event, acquiring a data index associated with the query event, acquiring a second data hash associated with the data index in the hash mapping table and sending the second data hash to the evidence storage platform;
the evidence storage platform is used for receiving the target data sent by the preset database platform and the first data hash of the target data and receiving the second data hash sent by the block chain;
and the evidence storage platform is used for taking the target data as a query result and outputting the query result if the first data hash is the same as the second data hash.
An embodiment of the present invention further provides a data management device based on a block chain, as shown in fig. 8, fig. 8 is a schematic structural diagram of an embodiment of the data management device based on a block chain provided in this embodiment of the present application.
The data management device based on the block chain integrates any one of the data management devices based on the block chain provided by the embodiment of the invention, and the data management device based on the block chain comprises:
one or more processors;
a memory; and
one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor for performing the steps of the blockchain based data management method in any of the above embodiments of the blockchain based data management method.
Specifically, the method comprises the following steps: the blockchain-based data management apparatus may include components such as a processor 701 of one or more processing cores, a memory 702 of one or more media, a power supply 703, and an input unit 704. Those skilled in the art will appreciate that the blockchain based data management device architecture shown in fig. 8 does not constitute a limitation of blockchain based data management devices and may include more or fewer components than shown, or some components in combination, or a different arrangement of components. Wherein:
the processor 701 is a control center of the blockchain-based data management apparatus, connects various parts of the entire blockchain-based data management apparatus by using various interfaces and lines, and performs various functions of the blockchain-based data management apparatus and processes data by running or executing software programs and/or modules stored in the memory 702 and calling data stored in the memory 702, thereby performing overall monitoring of the blockchain-based data management apparatus. Optionally, processor 701 may include one or more processing cores; preferably, the processor 701 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 701.
The memory 702 may be used to store software programs and modules, and the processor 701 executes various functional applications and data processing by operating the software programs and modules stored in the memory 702. The memory 702 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to use of the block chain-based data management apparatus, and the like. Further, the memory 702 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 702 may also include a memory controller to provide the processor 701 with access to the memory 702.
The data management device based on the blockchain further includes a power supply 703 for supplying power to each component, and preferably, the power supply 703 may be logically connected to the processor 701 through a power management system, so that functions of managing charging, discharging, power consumption management and the like are realized through the power management system. The power supply 703 may also include any component including one or more of a dc or ac power source, a recharging system, a power failure detection circuit, a power converter or inverter, a power status indicator, and the like.
The blockchain-based data management apparatus may further include an input unit 704, and the input unit 704 may be used to receive input numeric or character information and generate a keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.
Although not shown, the block chain-based data management apparatus may further include a display unit and the like, which are not described in detail herein. Specifically, in this embodiment, the processor 701 in the data management device based on the blockchain may load the executable file corresponding to the process of one or more application programs into the memory 702 according to the following events, and the processor 701 runs the application program stored in the memory 702, so as to implement various functions as follows:
receiving a data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database;
storing the data index and the data hash of the target data to a hash mapping table in a block chain;
when the data index and the data hash of the target data are linked up, storing the data index and the data hash of the target data into a hash relation table in a preset database, and recovering a flag bit of a hash relation table association trigger in the preset database;
receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table;
and if the first data hash is the same as the second data hash, taking the target data as a query result and outputting the query result.
It will be understood by those skilled in the art that all or part of the steps in the methods of the above embodiments may be performed by events, which may be stored in a medium and loaded and executed by a processor, or by hardware related to event control.
To this end, an embodiment of the present invention provides a medium, which may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like. Stored thereon, is a computer program, which is loaded by a processor to execute the steps in any block chain based data management method provided by the embodiments of the present invention. For example, the computer program may be loaded by a processor to perform the steps of:
receiving a data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database;
storing the data index and the data hash of the target data to a hash mapping table in a block chain;
when the data index and the data hash of the target data are linked up, storing the data index and the data hash of the target data into a hash relation table in a preset database, and recovering a flag bit of a hash relation table association trigger in the preset database;
receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table;
and if the first data hash is the same as the second data hash, taking the target data as a query result and outputting the query result.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
The above detailed description is provided for a data management method based on a block chain according to an embodiment of the present application, and a specific example is applied in the detailed description to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A data management method based on a block chain is characterized in that the data management method based on the block chain comprises the following steps:
receiving a data storage event, adjusting a flag bit of a Hash relation table associated trigger in a preset database, and storing target data to be stored in the data storage event to the preset database, wherein the trigger is provided with two flag bits which are respectively in an adjustment state and a recovery state, the adjustment state represents that the preset database is in a data modification state, and the recovery state represents that the preset database is not in the data modification state;
storing the data index and the data hash of the target data to a hash mapping table in a block chain;
when the data index and the data hash of the target data are linked up, storing the data index and the data hash of the target data into a hash relation table in a preset database, and recovering a flag bit of a hash relation table association trigger in the preset database;
receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table;
and if the first data hash is the same as the second data hash, taking the target data as a query result and outputting the query result.
2. The blockchain-based data management method according to claim 1, wherein before receiving a data storage event, adjusting a flag bit of a hash table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database, the method comprises:
receiving a configuration event, and outputting a configuration page for a user to set a trigger of a preset database;
and acquiring a configured trigger of the preset database, and associating the trigger with the hash relation table of the preset database so as to maintain the hash relation table of the preset database through the trigger.
3. The blockchain-based data management method according to claim 1, wherein the receiving a data query event, obtaining the target data in the preset database hash relationship table and a first data hash of the target data, and obtaining a second data hash in the blockchain hash mapping table includes:
receiving a data query event, and acquiring a data index associated with the data query event;
inquiring the preset database according to the data index, and acquiring target data corresponding to the data index in the preset database and a first data hash corresponding to the data index in the hash relation table;
and querying the block chain according to the data index to obtain a second data hash corresponding to the data index in the hash mapping table.
4. The blockchain-based data management method according to claim 1, wherein after receiving a data query event, obtaining the target data in the preset database hash relationship table and a first data hash of the target data, and obtaining a second data hash in the blockchain hash mapping table, the method comprises:
comparing the first data hash and the second data hash;
and if the first data hash is different from the second data hash, outputting prompt information of data abnormity.
5. The blockchain-based data management method according to claim 1, wherein after storing the data index and the data hash of the target data to the hash table in the predetermined database and restoring a flag bit of the hash table association trigger in the predetermined database when the data index and the data hash of the target data are linked up, the method comprises:
receiving a data updating event, and acquiring updating data to be updated related to the data updating event, and a data index and a data hash of the updating data;
adjusting the flag bit of the Hash relation table association trigger in the preset database, and updating the updated data to the preset database;
updating the data index and the data hash of the updated data to a hash mapping table in a block chain;
and when the data index and the data hash chaining of the updated data are detected, storing the data index and the data hash of the updated data to a hash relation table in the preset database, and recovering a flag bit of a hash relation table association trigger in the preset database.
6. The blockchain-based data management method according to any one of claims 1 to 5, wherein after receiving a data storage event, adjusting a flag bit of a hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event into the preset database, the method comprises:
monitoring the state of a Hash relation table association trigger in the preset database, and judging whether the state of the Hash relation table association trigger is recovered in a preset time period;
and if the state of the hash relation table association trigger is not recovered in a preset time period, outputting an abnormal prompt.
7. A blockchain-based data management apparatus, the blockchain-based data management apparatus comprising:
the state adjusting module is used for receiving a data storage event, adjusting a flag bit of a Hash relation table association trigger in a preset database, and storing target data to be stored in the data storage event to the preset database, wherein the trigger is provided with two flag bits which are respectively in an adjusting state and a recovery state, the adjusting state represents that the preset database is in a data modification state, and the recovery state represents that the preset database is not in the data modification state;
the data uplink module is used for storing the data index and the data hash of the target data to a hash mapping table in a block chain;
the state recovery module is used for storing the data index and the data hash of the target data to a hash relation table in the preset database and recovering a flag bit of a hash relation table association trigger in the preset database when the data index and the data hash of the target data are linked;
the data query module is used for receiving a data query event, acquiring target data in the preset database hash relation table and a first data hash of the target data, and acquiring a second data hash in the block chain hash mapping table;
and the data output module is used for taking the target data as a query result and outputting the query result if the first data hash is the same as the second data hash.
8. The data management system based on the block chain is characterized by comprising a certificate storage platform, a preset database platform and the block chain, wherein the certificate storage platform is in communication connection with the preset database platform, and the data management system of the block chain executes the following steps:
the evidence storage platform is used for receiving a data storage event and forwarding the data storage event to the preset database platform and the block chain;
the preset database platform is used for receiving the data storage event, adjusting a flag bit of a Hash relation table associated trigger in a preset database, and storing target data to be stored in the data storage event to the preset database, wherein the trigger is provided with two flag bits which are respectively in an adjustment state and a recovery state, the adjustment state represents that the preset database is in a data modification state, and the recovery state represents that the preset database is not in the data modification state;
the block chain is used for receiving the data storage event and storing the data index and the data hash of the target data to a hash mapping table in the block chain;
the preset database platform is used for storing the data index and the data hash of the target data to a hash relation table in the preset database and recovering a flag bit of a hash relation table association trigger in the preset database when the data index and the data hash of the target data are linked;
the evidence storage platform is used for receiving a data query event and sending the data query event to the preset database platform and the block chain;
the preset database platform is used for receiving the data query event, acquiring a data index associated with the data query event, acquiring target data and first data hash associated with the data index in the hash relation table and sending the target data and the first data hash to the evidence storage platform;
the block chain is used for receiving the data query event, acquiring a data index associated with the query event, acquiring a second data hash associated with the data index in the hash mapping table and sending the second data hash to the evidence storage platform;
the evidence storage platform is used for receiving the target data sent by the preset database platform and the first data hash of the target data and receiving the second data hash sent by the block chain;
and the evidence storage platform is used for taking the target data as a query result and outputting the query result if the first data hash is the same as the second data hash.
9. A blockchain-based data management apparatus, the blockchain-based data management apparatus comprising:
one or more processors;
a memory; and
one or more application programs, wherein the one or more application programs are stored in the memory and configured to be executed by the processor to implement the blockchain based data management method of any one of claims 1 to 6.
10. A non-transitory computer readable storage medium having stored thereon a computer program which is loaded by a processor to perform the steps in the blockchain based data management method of any one of claims 1 to 6.
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