CN110232143A - Pass through the question and answer data query method and its equipment of block chain - Google Patents
Pass through the question and answer data query method and its equipment of block chain Download PDFInfo
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- CN110232143A CN110232143A CN201910525405.XA CN201910525405A CN110232143A CN 110232143 A CN110232143 A CN 110232143A CN 201910525405 A CN201910525405 A CN 201910525405A CN 110232143 A CN110232143 A CN 110232143A
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- question
- cryptographic hash
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/903—Querying
- G06F16/9032—Query formulation
- G06F16/90332—Natural language query formulation or dialogue systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/903—Querying
- G06F16/90335—Query processing
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- Computational Linguistics (AREA)
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Abstract
The present invention relates to a kind of question and answer data query methods and its equipment by block chain, this method comprises: client inquires the question and answer data according to question and answer Data Identification from database；The client carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash；First cryptographic Hash is compared by the client with the second cryptographic Hash；When the client confirms that first cryptographic Hash is identical as second cryptographic Hash, judge that question and answer data that the client obtains from the database and the question and answer data stored on the block chain are identical.By the way that the data of the question and answer on block chain are resolved in database, then client obtains the data of question and answer from database as needed, the time that client obtains the data of question and answer from block chain is shortened, the efficiency that client obtains the data of question and answer is improved, improves the experience of user.
Description
Technical field
The present invention relates to block chain technical field more particularly to a kind of question and answer data query method by block chain and its
Equipment.
Background technique
Block chain is the novel of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm
Application model is substantially the database of a decentralization.In existing block chain, the structure of block chain be a block then
One block, the cryptographic Hash comprising a upper block of next block, to guarantee the safety of data in block.
Therefore, user's (client), for the interface of inquiry on block chain, needs to be traversed for all when carrying out data query
Block chain can just obtain the data that user wants inquiry；Cause efficiency data query low, and then influences user experience.
Summary of the invention
The present invention provides a kind of question and answer data query methods and its equipment by block chain, improve information inquiry
Efficiency improves user experience.
The application first aspect discloses the question and answer data query method by block chain, in this method:
Client inquires the question and answer data according to question and answer Data Identification from database, the question and answer number in the database
According to being obtained from block chain；
The client carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash；
First cryptographic Hash is compared by the client with the second cryptographic Hash, and second cryptographic Hash is the block chain
The question and answer data of upper storage carry out the cryptographic Hash that the second Hash operation obtains；
When the client confirms that first cryptographic Hash is identical as second cryptographic Hash, judge the client from institute
The question and answer data stating the question and answer data obtained in database and storing on the block chain are identical.
In one example, first cryptographic Hash is compared by the client with second cryptographic Hash, comprising:
The client sends the first cryptographic Hash on the block chain, by verifying intelligent contract, by institute on the block chain
The first cryptographic Hash is stated to compare with the second cryptographic Hash.
In one example, first cryptographic Hash is compared by the client with second cryptographic Hash, comprising:
The client obtains the second cryptographic Hash from the block chain, and by first cryptographic Hash and the second cryptographic Hash ratio
It is right.
In one example, the Data Identification of the question and answer include User ID, one kind of the ID of problem and answer ID or
It is a variety of；The question and answer data include problem data, answer data, user data and question and answer time data.
In one example, first Hash operation and second Hash operation are identical hash algorithm.
The application second aspect discloses a kind of question and answer data query equipment by block chain, and the equipment is client
End, the equipment includes acquiring unit, computing unit, comparing unit and confirmation unit；Wherein,
The acquiring unit inquires the question and answer data according to question and answer Data Identification, in the database from database
Question and answer data be to be obtained from block chain；
The computing unit carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash；
First cryptographic Hash is compared by the comparing unit with the second cryptographic Hash, and second cryptographic Hash is the area
The question and answer data stored on block chain carry out the cryptographic Hash that the second Hash operation obtains；
The confirmation unit judges the client when confirming that first cryptographic Hash is identical as second cryptographic Hash
The question and answer data obtained from the database and the question and answer data stored on the block chain are identical.
In one example, first cryptographic Hash is compared by the comparing unit with second cryptographic Hash, packet
Include: the comparing unit sends the first cryptographic Hash on the block chain, by verifying intelligent contract, in the block chain
On first cryptographic Hash is compared with the second cryptographic Hash.
In one example, first cryptographic Hash is compared by the comparing unit with second cryptographic Hash, packet
Include: the comparing unit obtains the second cryptographic Hash from the block chain, and by first cryptographic Hash and second Hash
Value compares.
In one example, the Data Identification of the question and answer include User ID, one kind of the ID of problem and answer ID or
It is a variety of；The question and answer data include problem data, answer data, user data and question and answer time data.
In one example, first Hash operation and second Hash operation are identical hash algorithm.
The third aspect provides a kind of client, which includes processor and memory, and memory includes instruction,
When processor calls and executes the instruction in memory, following procedure is realized:
Client inquires the question and answer data according to question and answer Data Identification from database, the question and answer number in the database
According to being obtained from block chain；
The client carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash；
First cryptographic Hash is compared by the client with the second cryptographic Hash, and second cryptographic Hash is the block chain
The question and answer data of upper storage carry out the cryptographic Hash that the second Hash operation obtains；
When the client confirms that first cryptographic Hash is identical as second cryptographic Hash, judge the client from institute
The question and answer data stating the question and answer data obtained in database and storing on the block chain are identical.
Fourth aspect provides a kind of system, which includes block catenary system, database and at least one client.
Block catenary system includes question and answer data；It include the question and answer data for obtaining and parsing from block chain in database；Client is used for
It executes in a first aspect, and any method in the cards of first aspect.
5th aspect, provides a kind of computer program product comprising instruction, when described instruction is run on computers
When, execute any method in the cards in first aspect.
6th aspect, provides a kind of computer readable storage medium, for storing instruction, when described instruction is in computer
When upper execution, any method in the cards in first aspect is realized.
The application by the question and answer data on block chain by downloading and being resolved in database, and client is according to question and answer data
Mark the question and answer data are directly inquired from database；And it will be deposited from the question and answer data inquired in database and block chain
The cryptographic Hash of the question and answer data of storage is compared；It not only ensure that the reliability of the question and answer data, and shorten from block chain
The time for obtaining question and answer data improves the efficiency of inquiry question and answer data, improves the experience of user.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of question and answer data query method flow schematic diagram by block chain provided by the embodiments of the present application；
Fig. 2 is a kind of structural schematic diagram of client provided by the embodiments of the present application；
Fig. 3 is a kind of structural schematic diagram of client provided by the embodiments of the present application.
Specific embodiment
On the basis of existing block chain technology, in order to shorten from block chain inquire question and answer data time, improve from
The efficiency that question and answer data are inquired on block chain, provides the embodiment of the present invention.
Embodiments herein, suitable for the inquiry of question and answer data, question and answer data include the data asked, the time asked, answer
Data and time for answering；Such as: know a problem that upper user A is asked, the b answer that user B is answered；And the time of the two is not
Equally.In other words, question and answer data are exactly knowledge question, and a user proposes problem, and user or himself in addition carries out
It answers.
In embodiments of the present invention, when user needs to obtain some question and answer data, user is by client, according to question and answer
Data Identification (such as: User ID) obtains corresponding question and answer data from database.While the safety in order to guarantee question and answer data,
Client calculates the cryptographic Hash for getting question and answer data, and the cryptographic Hash of calculating is verified on block chain, i.e., will calculate
Cryptographic Hash and block chain on the cryptographic Hash that stores be compared, when the cryptographic Hash one stored in the cryptographic Hash of calculating and block chain
When cause, it is true that the question and answer data for determining that client is obtained from database, which are not tampered with,.
Flow chart below with reference to the querying method of the question and answer data of Fig. 1 is applied to block to provided in an embodiment of the present invention
The knowledge question data query method of chain is illustrated.
As shown in Figure 1, the executing subject of this method is client, method includes the following steps:
S101, client inquire the question and answer data according to question and answer Data Identification from database, in the database
Question and answer data are obtained from block chain.
In this embodiment, it is inquired to shorten client from block chain the time of question and answer data, improves client and look into
Inquire the efficiency of answer evidence, first by data downloading, parsing and the storage of the question and answer on block chain into database, the database
It can be conventional database, for storing data.The database can be specifically a server or other are used to store number
According to equipment.
When user needs to inquire the data of some question and answer, by client, according to the attribute information of question and answer, (mark is believed
Breath) data of the corresponding question and answer of question and answer attribute information are inquired and obtained from database.
In one embodiment, the attribute information of question and answer can be the mark of question and answer, which is unique identification.Question and answer
Attribute information is also possible to the information such as the title of question and answer.
In one embodiment, the Data Identification of the question and answer includes one kind of User ID, the ID of problem and answer ID
Or it is a variety of；The question and answer data include problem data, answer data, user data and question and answer time data.
For example, user needs to inquire question and answer when being identified as the question and answer data of A, user is entitled by client query question and answer
The question and answer data of A；In one embodiment, client sends inquiry request to database, includes question and answer mark in the inquiry request
Know A；After database receives the inquiry request, by the question and answer data feedback of question and answer title A to client.
S102, client carry out the first Hash operation according to the question and answer data and obtain the first cryptographic Hash.
When client receives the data of question and answer, such as when client receives question and answer and is identified as the question and answer data of A, client
It holds the question and answer data for being identified as A to question and answer to carry out Hash calculation, obtains cryptographic Hash, which is also known as the first cryptographic Hash.
It should be noted that, in order to distinguish information, such as cryptographic Hash, " first " has been used in the inventive embodiments, " the
Two ", but in embodiments of the present invention, " first " and " second " is used only for distinguishing things, without limitation to information itself.
First cryptographic Hash is compared by S103, client with the second cryptographic Hash, and second cryptographic Hash is the block
The question and answer data stored on chain carry out the cryptographic Hash that the second Hash operation obtains.
It is consistent with the data of question and answer obtained from block chain from the data of the question and answer obtained in database in order to guarantee,
That is to guarantee that the data of question and answer in database are not tampered with, it need to be by the data and block of the question and answer obtained from database
The data of the question and answer stored on chain compare.
And question and answer data are on block chain when storing, storage is a cryptographic Hash after question and answer data conversion, for this purpose, objective
Family end calculates the data of the question and answer obtained from database, obtains cryptographic Hash (also known as the first Hash of question and answer data
Value), it is then compared with the second cryptographic Hash of the data of the question and answer stored on block chain, is obtained from database with determination
The data of question and answer be not tampered with, it is consistent with the data of the question and answer on block chain, i.e., the question and answer got from database
Data be correctly, it is safe.
In one embodiment, first cryptographic Hash is compared by the client with second cryptographic Hash, packet
Include: the client sends the first cryptographic Hash on the block chain, will on the block chain by verifying intelligent contract
First cryptographic Hash is compared with the second cryptographic Hash.
In one embodiment, first cryptographic Hash is compared by the client with second cryptographic Hash, packet
Include: the client obtains the second cryptographic Hash from the block chain, and by first cryptographic Hash and second cryptographic Hash
It compares.Detailed process may is that client sends acquisition request to some block chain node of block chain, to obtain on block chain
Second cryptographic Hash of the question and answer data；When client gets the second cryptographic Hash of the question and answer data from block chain, by
One cryptographic Hash is compared with the second cryptographic Hash.
S104 judges the client when client confirms that first cryptographic Hash is identical as second cryptographic Hash
Hold the question and answer data obtained from the database and the question and answer data stored on the block chain identical.
When the first cryptographic Hash is consistent with the second cryptographic Hash, client determines that the data of the question and answer obtained from database are
Safety, it is not tampered with, it is consistent with the data of the question and answer on block chain.
Using the querying method of data on block chain provided in an embodiment of the present invention, by by the number of the question and answer on block chain
According to being resolved in database, then client obtains the data of question and answer from database as needed, shortens client from area
The time that the data of question and answer are obtained on block chain improves the efficiency that client obtains the data of question and answer, improves the experience of user.
Fig. 2 is a kind of structural schematic diagram of client provided in an embodiment of the present invention.As shown in Fig. 2, the equipment includes obtaining
Take unit 210, computing unit 220, comparison unit 230 and determination unit 240.
Acquiring unit 210 inquires the question and answer data according to question and answer Data Identification, in the database from database
Question and answer data are obtained from block chain.
Computing unit 220 carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash.
First cryptographic Hash is compared by comparing unit 230 with the second cryptographic Hash, and second cryptographic Hash is the block
The question and answer data stored on chain carry out the cryptographic Hash that the second Hash operation obtains.
Confirmation unit 240, when confirming that first cryptographic Hash is identical as second cryptographic Hash, judge the client from
The question and answer data obtained in the database and the question and answer data stored on the block chain are identical.
By the way that the data of the question and answer on block chain are resolved in database, then client is as needed from database
The data for obtaining question and answer, shorten the time that client obtains the data of question and answer from block chain, improve client acquisition and ask
The efficiency for the data answered improves the experience of user.
In one example, first cryptographic Hash is compared by the comparing unit with second cryptographic Hash, packet
Include: the comparing unit sends the first cryptographic Hash on the block chain, by verifying intelligent contract, in the block chain
On first cryptographic Hash is compared with the second cryptographic Hash.
In one example, first cryptographic Hash is compared by the comparing unit with second cryptographic Hash, packet
Include: the comparing unit obtains the second cryptographic Hash from the block chain, and by first cryptographic Hash and second Hash
Value compares.
In one example, the Data Identification of the question and answer include User ID, one kind of the ID of problem and answer ID or
It is a variety of；The question and answer data include problem data, answer data, user data and question and answer time data.
In one example, first Hash operation and second Hash operation are identical hash algorithm.
Method/step shown in FIG. 1 may be implemented in each functional unit of the client, and therefore, the embodiment of the present invention mentions
The specific work process of the client of confession, details are not described herein.
Fig. 3 is a kind of structural schematic diagram of client provided in an embodiment of the present invention.As shown in figure 3, the client includes
Processor and memory, memory include instruction, when processor calls and executes the instruction in memory, realize following mistake
Journey:
Client inquires the question and answer data according to question and answer Data Identification from database, the question and answer number in the database
According to being obtained from block chain；
The client carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash；
First cryptographic Hash is compared by the client with the second cryptographic Hash, and second cryptographic Hash is the block chain
The question and answer data of upper storage carry out the cryptographic Hash that the second Hash operation obtains；
When the client confirms that first cryptographic Hash is identical as second cryptographic Hash, judge the client from institute
The question and answer data stating the question and answer data obtained in database and storing on the block chain are identical.
By the way that the data of the question and answer on block chain are resolved in database, then client is as needed from database
The data for obtaining question and answer, shorten the time that client obtains the data of question and answer from block chain, improve client acquisition and ask
The efficiency for the data answered improves the experience of user.
Same or similar place in above-mentioned hardware embodiment and above method embodiment, reference can be made to, details are not described herein.
Method/step shown in FIG. 1 may be implemented in each function element of the client, and therefore, the embodiment of the present invention mentions
The specific work process of the client of confession, details are not described herein.
The embodiment of the invention also provides a kind of system, which includes block catenary system, database and at least one visitor
Family end.Block catenary system includes electric quotient data, such as the data of question and answer；It include obtaining and parsing from block chain in database
The data of question and answer；Client is for executing method shown in FIG. 1.
The embodiment of the invention also provides a kind of computer program product comprising instruction, when described instruction on computers
When operation, method shown in FIG. 1 is executed.
The embodiment of the invention also provides a kind of computer readable storage mediums, for storing instruction, when described instruction exists
When executing on computer, method shown in FIG. 1 is realized.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It should not be considered as beyond the scope of the present invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can be executed with hardware, processor
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. passing through the question and answer data query method of block chain, which is characterized in that the method includes
Client inquires the question and answer data according to question and answer Data Identification from database, and the question and answer data in the database are
It is obtained from block chain；
The client carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash；
First cryptographic Hash is compared by the client with the second cryptographic Hash, and second cryptographic Hash is to deposit on the block chain
The question and answer data of storage carry out the cryptographic Hash that the second Hash operation obtains；
When the client confirms that first cryptographic Hash is identical as second cryptographic Hash, judge the client from the number
It is identical according to the question and answer data stored in the question and answer data obtained in library and the block chain.
2. the method according to claim 1, wherein the client is by first cryptographic Hash and described second
Cryptographic Hash is compared, comprising:
The client sends the first cryptographic Hash on the block chain, by verifying intelligent contract, on the block chain
First cryptographic Hash is compared with the second cryptographic Hash.
3. the method according to claim 1, wherein the client is by first cryptographic Hash and described second
Cryptographic Hash is compared, comprising:
The client obtains the second cryptographic Hash from the block chain, and by first cryptographic Hash and second cryptographic Hash
It compares.
4. method according to any one of claims 1 to 3, which is characterized in that the Data Identification of the question and answer includes user
ID, the ID of problem and answer ID's is one or more；
The question and answer data include problem data, answer data, user data and question and answer time data.
5. method according to any one of claims 1 to 3, which is characterized in that first Hash operation and described second
Hash operation is identical hash algorithm.
6. passing through the question and answer data query equipment of block chain, which is characterized in that the equipment is client, and the equipment includes obtaining
Take unit, computing unit, comparing unit and confirmation unit；Wherein,
The acquiring unit inquires the question and answer data, asking in the database according to question and answer Data Identification from database
Answer evidence is obtained from block chain；
The computing unit carries out the first Hash operation according to the question and answer data and obtains the first cryptographic Hash；
First cryptographic Hash is compared by the comparing unit with the second cryptographic Hash, and second cryptographic Hash is the block chain
The question and answer data of upper storage carry out the cryptographic Hash that the second Hash operation obtains；
The confirmation unit judges the client from institute when confirming that first cryptographic Hash is identical as second cryptographic Hash
The question and answer data stating the question and answer data obtained in database and storing on the block chain are identical.
7. equipment according to claim 6, which is characterized in that the comparing unit, by first cryptographic Hash with it is described
Second cryptographic Hash is compared, comprising:
The comparing unit sends the first cryptographic Hash on the block chain, by verifying intelligent contract, in the block chain
On first cryptographic Hash is compared with the second cryptographic Hash.
8. equipment according to claim 6, which is characterized in that the comparing unit, by first cryptographic Hash with it is described
Second cryptographic Hash is compared, comprising:
The comparing unit obtains the second cryptographic Hash from the block chain, and first cryptographic Hash and described second is breathed out
Uncommon value compares.
9. according to the described in any item equipment of claim 6 to 8, which is characterized in that the Data Identification of the question and answer includes user
ID, the ID of problem and answer ID's is one or more；
The question and answer data include problem data, answer data, user data and question and answer time data.
10. according to the described in any item equipment of claim 6 to 8, which is characterized in that first Hash operation and described second
Hash operation is identical hash algorithm.
Priority Applications (1)
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| CN201910525405.XA CN110232143A (en) | 2019-06-18 | 2019-06-18 | Pass through the question and answer data query method and its equipment of block chain |
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| CN201910525405.XA CN110232143A (en) | 2019-06-18 | 2019-06-18 | Pass through the question and answer data query method and its equipment of block chain |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112214519A (en) * | 2020-11-10 | 2021-01-12 | 支付宝(杭州)信息技术有限公司 | Data query method, device, equipment and readable medium |
| CN112948423A (en) * | 2021-03-15 | 2021-06-11 | 亿海蓝（北京）数据技术股份公司 | Ship data query method and device and ship notarization system |
-
2019
- 2019-06-18 CN CN201910525405.XA patent/CN110232143A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112214519A (en) * | 2020-11-10 | 2021-01-12 | 支付宝(杭州)信息技术有限公司 | Data query method, device, equipment and readable medium |
| CN112948423A (en) * | 2021-03-15 | 2021-06-11 | 亿海蓝（北京）数据技术股份公司 | Ship data query method and device and ship notarization system |
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