CN114547209B - Data sharing interaction method and system based on block chain - Google Patents
Data sharing interaction method and system based on block chain Download PDFInfo
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- CN114547209B CN114547209B CN202210442409.3A CN202210442409A CN114547209B CN 114547209 B CN114547209 B CN 114547209B CN 202210442409 A CN202210442409 A CN 202210442409A CN 114547209 B CN114547209 B CN 114547209B
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Abstract
The application provides a data sharing interaction method and system based on a block chain, wherein the method comprises the following substeps: performing security audit on a user side outside the blockchain alliance network requesting data interactive sharing, and adding the user side passing the audit into the blockchain alliance network; receiving a data interaction request of a user side joining a block chain alliance network; judging the type of the data interaction request, if the type of the data interaction request is uploading shared data, uploading the shared data owned by the user side to a block chain operation node through an intelligent contract, and appointing a data sharing range; if the type of the data interaction request is downloading shared data, calling corresponding data from the block chain according to the data interaction request; and carrying out safety monitoring on the user side in real time. The method and the device improve the safety of data sharing interaction and the usability value of uploading the blockchain data.
Description
Technical Field
The present application relates to the field of data processing technologies, and in particular, to a data sharing interaction method and system based on a block chain.
Background
Data sharing is to enable users who use different computers and different software in different places to read data of other people and carry out various operation operations and analysis. The data sharing is realized, more people can fully use the existing data resources, and the repeated labor and corresponding cost of data collection, data acquisition and the like are reduced. However, some network security problems exist in the existing data sharing, so that the security of the shared data can be improved by storing the shared data through the block chain technology.
Currently, a blockchain system includes a data layer, a network layer, a consensus layer, a stimulus layer, a contract layer, and an application layer. A data layer encapsulating the bottom data block; the network layer comprises a distributed networking mechanism, a data transmission mechanism and a data verification mechanism; the consensus layer encapsulates various consensus algorithms of the network nodes; the excitation layer integrates economic factors into a block chain technology system; the contract layer encapsulates various scripts, algorithms and intelligent contracts; and the application layer encapsulates the application scenes and the cases of the block chain. The block chain is a chain data structure formed by combining data blocks in a sequential connection mode according to a time sequence, and is a distributed account book which is guaranteed in a cryptographic mode and cannot be tampered and forged.
Because the data of the block chain cannot be modified under an ideal state, the data on the block chain can only be increased but cannot be modified and deleted, at present, the data of the block chain is not limited to be uploaded, and the useful value of the data on the block chain is not high.
Therefore, there is an urgent need to provide a method for improving the security of data sharing interaction and improving the availability value of shared data on the upload block chain.
Disclosure of Invention
The application aims to provide a data sharing interaction method and system based on a block chain, and the safety of data sharing interaction and the availability value of uploading block chain data are improved.
In order to achieve the above object, the present application provides a data sharing interaction method based on a block chain, which includes the following sub-steps: performing security audit on a user side outside the blockchain alliance network requesting data interactive sharing, and adding the user side passing the audit into the blockchain alliance network; receiving a data interaction request of a user side joining a block chain alliance network; judging the type of the data interaction request, if the type of the data interaction request is uploading shared data, uploading the shared data owned by the user side to a block chain operation node through an intelligent contract, and appointing a data sharing range; if the type of the data interaction request is downloading shared data, calling corresponding data from the block chain according to the data interaction request; carrying out safety monitoring on a user side in real time; calculating a risk value of a user side; and comparing the risk value with a preset safety threshold value, if the risk value is smaller than the preset safety threshold value, allowing the user side to perform data interaction with the block chain, and otherwise, forbidding the user side to perform data interaction with the block chain.
As above, the first corresponding relationship of the data type identifier of the data interaction request and the data transmission channels in a one-to-one correspondence is preset, and the second corresponding relationship of the data type identifier of the data interaction request and the blocks in the block chain in a one-to-one correspondence is preset.
As above, the data transmission channel includes a first segment of communication channel between the user end and the blockchain operation node and a second segment of communication channel between the blockchain operation node and the block.
As above, after the data called according to the data interaction request is encrypted by using the public key, a shared data packet is formed, and the shared data packet is sent to the user side requesting to obtain the data.
The data sharing interaction method based on the block chain further comprises the following substeps: carrying out attention evaluation on shared data of an uploading block chain, and calculating an attention heat value of the shared data to be uploaded; acquiring a duplicate checking and retrieving result of the shared data to be uploaded on the block chain of the user side, and calculating a repetition value of the shared data to be uploaded and the data on the block chain according to the acquired duplicate checking and retrieving result; according to the calculated attention heat value and the repetition value, comprehensively calculating a total score value of shared data to be uploaded at a user side; and comparing the total score value with a preset threshold value, if the total score value is greater than the preset threshold value, allowing the user side to upload the shared data to the block chain, otherwise, forbidding the user side to upload the shared data to the block chain.
As above, the method for calculating the repetition value of the shared data to be uploaded and the data on the block chain includes: acquiring a key sentence paragraph of shared data to be uploaded at a user side; filtering useless information in the key sentence paragraphs; converting the key sentence paragraphs, wherein the converted sentences are consistent with the data format in the block chain database; according to the converted sentences, the repetition degrees of the key sentence paragraphs are retrieved in the database of the blockchain based on semantic analysis.
The specified data sharing scope includes the full blockchain alliance network, a part of the user terminals in the alliance network or the user terminals which need to pass the privacy authority verification.
The present application further provides a data sharing interactive system based on a block chain, the system including:
the safety auditing module is used for carrying out safety auditing on a user side outside the block chain alliance network requesting data interactive sharing, and adding the user side passing the auditing into the block chain alliance network;
the system comprises a block chain operation node, a block chain alliance network and a block chain operation node, wherein the block chain operation node is used for receiving a data interaction request of a user side in the block chain alliance network;
the judging module is used for judging the type of the data interaction request, if the type of the data interaction request is uploading shared data, the user side uploads the owned shared data to the block chain operation node through an intelligent contract, and a data sharing range is specified; if the type of the data interaction request is downloading shared data, calling corresponding data from the block chain according to the data interaction request;
the safety monitoring center is used for carrying out safety monitoring on the user side in real time; calculating a risk value of a user side; and comparing the risk value with a preset safety threshold value, if the risk value is smaller than the preset safety threshold value, allowing the user side to perform data interaction with the block chain, and otherwise, forbidding the user side to perform data interaction with the block chain.
The data sharing interactive system based on the block chain further comprises:
the data acquisition module is used for acquiring heat related data of shared data of the block chain;
the data processing module is used for evaluating the attention degree of the shared data of the uploading block chain according to the acquired heat degree related data and calculating the attention heat degree value of the shared data;
the data processing module is also used for acquiring a duplicate checking and retrieving result of the shared data to be uploaded on the block chain of the user side, and calculating a repetition value of the shared data to be uploaded and the data on the block chain according to the acquired duplicate checking and retrieving result;
the data processing module is also used for comprehensively calculating the total score value of the shared data to be uploaded at the user side according to the calculated attention heat value and the repetition value;
and the data comparison module is also used for comparing the total score value with a preset threshold value, if the total score value is greater than the preset threshold value, the user side is allowed to upload the shared data to the block chain, otherwise, the user side is prohibited from uploading the shared data to the block chain.
As above, the first corresponding relationship of the data type identifier of the data interaction request and the data transmission channels in a one-to-one correspondence is preset, and the second corresponding relationship of the data type identifier of the data interaction request and the blocks in the block chain in a one-to-one correspondence is preset.
The beneficial effect that this application realized is as follows:
(1) according to the method and the device, the security audit is performed on the user side outside the block chain alliance network requesting the data interaction sharing, and the user side passing the audit is added into the block chain alliance network, so that the user side performing the data interaction with the block chain is ensured to be subjected to the security audit, and the security of the data interaction sharing is improved.
(2) According to the method and the device, the attention degree evaluation is carried out on the shared data of the block chain to be uploaded at the user side, the repeatability degree evaluation is carried out on the shared data to be uploaded at the user side and the data on the block chain, so that comprehensive scoring is carried out according to the attention degree result of the shared data to be uploaded at the user side and the data repeatability degree evaluation result of the shared data to be uploaded and the data on the block chain, uploading of the block chain is forbidden for the shared data with lower comprehensive scoring, and therefore the useful value of the shared data on the block chain is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a flowchart of a data sharing interaction method based on a blockchain according to an embodiment of the present disclosure.
Fig. 2 is a flowchart of a method for calculating a heat of interest value of shared data according to an embodiment of the present application.
Fig. 3 is a flowchart illustrating a method for calculating a repetition value of shared data to be uploaded and data on a block chain according to an embodiment of the present application.
Fig. 4 is a flowchart of a method for obtaining a duplicate checking and retrieving result of shared data to be uploaded according to an embodiment of the present application.
Fig. 5 is a schematic structural diagram of a data sharing interactive system based on a block chain according to an embodiment of the present application.
Reference numerals: 10-a user terminal; 20-a security audit module; 30-blockchain operation nodes; 40-a judgment module; 50-a data acquisition module; 60-a data processing module; 70-a data comparison module; 80-a safety monitoring center; 90-block chain; 100-data sharing interactive system.
Detailed Description
The technical solutions in the embodiments of the present application are 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 some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example one
As shown in fig. 1, the present application provides a data sharing interaction method based on a block chain, which includes the following sub-steps:
and step S1, acquiring the security authentication information of the user terminal, performing security audit on the user terminal outside the block chain alliance network requesting data interactive sharing, and adding the user terminal passing the audit into the block chain alliance network.
And acquiring security authentication information of the user side, performing security audit on the acquired security authentication information, and judging whether the security authentication information is authorization information in the blockchain alliance network, if so, passing the security audit of the user side, otherwise, failing to pass the security audit of the user side. The security authentication information includes a security authentication certificate, a user name, a user network address, a user identifier, and the like.
As a specific embodiment of the present invention, the blockchain alliance network is in communication connection with the blockchain through the blockchain interface, and only a user terminal added to the blockchain alliance network can implement data sharing interaction with the blockchain link point, so as to ensure the security and reliability of the user terminal requesting the data interaction, and further improve the security and reliability of the data sharing interaction.
Step S2, receiving a data interaction request for joining the user terminal in the blockchain alliance network.
And the user terminal joining the blockchain alliance network sends a data interaction request to the blockchain operation node. And the blockchain operation node receives a data interaction request of a user side in the blockchain alliance network.
Step S3, judging the type of the data interaction request, if the type of the data interaction request is uploading shared data, the user side uploads the shared data owned by the user side to the block chain operation node through the intelligent contract, and appoints a data sharing range; and if the type of the data interaction request is downloading shared data, calling corresponding data from the block chain according to the data interaction request.
The first corresponding relation between the data type identification information of the data interaction request and the data transmission channel is preset, and the second corresponding relation between the data type identification information of the data interaction request and the blocks in the block chain is preset. For example, data interaction requests of the same data type correspond to the same data transmission channel, data interaction requests of different data types correspond to different data transmission channels, data of the same data type is stored in the same block of the block chain, and data of different data types is stored in different blocks of the block chain. The data types include financial data, entertainment data, transactional data, scientific data, and the like.
According to the data type identification information of the data interaction request, a first corresponding relation of preset data type identification information and data transmission channels in one-to-one correspondence, and a second corresponding relation of preset data type identification information of the data interaction request and blocks in a block chain in one-to-one correspondence, and corresponding numbers are assigned to the identification information of each data transmission channel and each block corresponding to the data type. And acquiring a data transmission channel number and a block corresponding to the data type identification information of the data interaction request. The data transmission channel comprises a first section of communication channel of the user terminal and the block chain operation node and a second section of communication channel of the block chain operation node and the block. And the user side realizes data interactive transmission with the block chain operation node through the acquired data transmission channel corresponding to the serial number, and the block chain operation node performs data interaction with the block corresponding to the serial number through the acquired data transmission channel.
The designated data sharing range comprises a full block chain alliance network, a part of user terminals in the alliance network and user terminals needing privacy authority verification. And limiting the permission of other user sides to obtain the shared data according to the data sharing range, if the user side is in the data sharing range, obtaining the shared data, otherwise, not obtaining the shared data.
The method comprises the steps of obtaining a data interaction request, using a public key to encrypt the called data according to the data interaction request to form a shared data packet, and sending the shared data packet to a user side requesting to obtain the data. And the user side requesting to acquire the data decrypts the shared data packet by using the private key to acquire the shared data.
Because the storage space of the block chain is certain and the data cannot be deleted, in order to improve the availability value and the attention degree of the block chain data, the attention degree evaluation is performed on the shared data of the block chain to be uploaded at the user end and the repeatability evaluation is performed on the shared data to be uploaded at the user end and the data on the block chain, so that whether the user end can upload the shared data to the block chain is limited according to the attention degree result of the shared data uploaded at the user end and the data repeatability evaluation result on the shared data to be uploaded and the block chain, and the useful value of the shared data on the block chain is improved.
And step S4, acquiring heat degree related data of the shared data to be uploaded, performing attention degree evaluation on the shared data of the uploading block chain, and calculating the attention heat degree value of the shared data to be uploaded.
Specifically, the block chain operation node acquires heat related data of shared data to be uploaded, performs attention evaluation on the shared data of the uploaded block chain according to the acquired heat related data, and calculates attention heat values of the shared data.
As shown in fig. 2, step S4 includes the following sub-steps:
step S410, obtaining heat related data of the shared data to be uploaded.
The popularity related data comprises the type of the shared data to be uploaded, keywords of the shared data to be uploaded, an importance index of the keywords in the shared data to be uploaded, the number of times that keywords and similar words of the keywords are downloaded by the user side in a preset recent period of time (for example, one month, two months, three months or the like), the total amount of data and the like, and the number of the user sides requesting to acquire the keywords and the similar word data of the keywords.
Step S420, calculating a heat value of interest of the shared data to be uploaded according to the heat related data of the shared data to be uploaded.
Wherein, the calculation formula of the attention heat value of the I type shared data is as follows:
wherein the content of the first and second substances,
a heat of interest value representing the type I shared data; m represents the total number of keywords;
the importance index represents the occupation of the ith keyword in the shared data to be uploaded;
representing the number of times that the ith keyword is downloaded by the user side in a preset recent period;
the data total amount of the ith keyword downloaded by the user side in the preset latest period of time is represented;
representing the number of the user sides requesting to acquire the keyword in a preset latest period of time;
representing the influence coefficient of the total downloaded data of the preset keywords on the heat value of interest;
；
the total number of similar words representing the ith keyword;
representing the jth adjacent word of the ith keyword and an approximate value of the keyword; presetting an approximate table of related key words and similar words, and inquiring the approximate values of the key words and the similar words through the approximate table;
；
representing the number of times that the jth adjacent word of the ith keyword is downloaded by the user terminal in a preset latest period of time;
representing the number of the clients requesting to acquire the jth word of the ith keyword within a preset latest period of time;
the j-th adjacent word representing the ith keyword is downloaded by the user side in a preset latest period of time;
the unit of the time length of the preset latest period is as follows: and (5) day.
And step S5, obtaining the result of the duplicate checking and retrieving of the shared data to be uploaded on the block chain by the user terminal, and calculating the repetition value of the shared data to be uploaded and the data on the block chain according to the obtained duplicate checking and retrieving result.
As shown in fig. 3, step S5 includes the following sub-steps:
step S510, according to the type of the shared data to be uploaded, a block corresponding to the uploaded data is obtained.
Step S520, obtaining a duplicate checking and retrieving result of the shared data to be uploaded in the block according to the obtained data in the block and the shared data to be uploaded.
As shown in fig. 4, step S520 includes the following sub-steps:
step S511, a key sentence paragraph of the shared data to be uploaded by the user side is obtained.
And requesting the user side to acquire a key sentence paragraph of the shared data to be uploaded by the user side, and sending the key sentence of the shared data to be uploaded to the block chain operation node by the user side.
Step S512, filtering out useless information in the key sentence paragraphs.
And filtering out digital information, copyright information and other information which does not play a decisive role in judging the repeatability in the key sentence paragraphs.
Step S513, the key sentence paragraphs are converted, and the converted sentences are in accordance with the data format in the database corresponding to the block.
For example, full-angle/half-angle conversion or traditional/simplified conversion is performed to unify the formats of the converted sentences.
Step S514, according to the converted sentence, retrieving a repetition value of a key sentence paragraph in the database of the corresponding block based on semantic analysis, and using the repetition value as a result of a duplicate checking and retrieving of the shared data to be uploaded in the block.
Specifically, the repetition degree of the retrieval key sentence paragraph is obtained by the existing data duplication checking technology. The degree of repetition of a keyword sentence paragraph is equal to the number of words of the repeated sentence in which the keyword sentence paragraph is retrieved in a block divided by the total number of words of the keyword sentence paragraph.
And step S6, comprehensively calculating the total score value of the shared data to be uploaded at the user side according to the calculated attention heat value and the repetition value. The method for calculating the total credit value of the shared data to be uploaded at the user side comprises the following steps:
wherein the content of the first and second substances,
representing a total score value of shared data to be uploaded at a user side;
representing the influence weight of the attention heat value on the total score value;
representing the weight of the influence of the repetition value on the total score value;
representing a maximum repetition value of the allowed upload block chain;
representing the repetition value of the shared data to be uploaded and the data on the block chain;
。
step S7, comparing the total score value with a preset threshold, if the total score value is greater than the preset threshold, allowing the user side to upload the shared data to the blockchain, otherwise, prohibiting the user side from uploading the shared data to the blockchain.
And acquiring abstract information of the data interaction request, and storing the abstract information into log information of the block chain.
The data sharing interaction method based on the block chain further comprises the following steps:
and step S8, carrying out safety monitoring on the user terminal in real time.
The safety monitoring method comprises the following steps:
and step T1, calculating the risk value of the user terminal.
The method for calculating the risk value of the user side comprises the following steps:
wherein, the first and the second end of the pipe are connected with each other,
representing a risk value of the user terminal;
representing an influence factor of the vulnerability on a risk value of the user side;
representing the total number of the vulnerabilities of the user side;
is shown as
A weight value of each vulnerability;
is shown as
A risk value of an individual vulnerability;
representing the influence factor of the risk alarm information on the risk value of the server;
representing the total number of risk alarm information of the user side;
is shown as
The weight of the individual risk warning information;
is shown as
A risk value of the individual risk warning information;
、
and
representing a parameter.
Wherein, the user side is a computer terminal.
And step T2, comparing the risk value with a preset safety threshold, if the risk value is smaller than the preset safety threshold, allowing the user side to perform data interaction with the block chain, otherwise, prohibiting the user side from performing data interaction with the block chain.
If the risk value is larger than the preset safety threshold value, after the user side and the block chain are forbidden to perform data interaction, the encryption protection measures and external risk factors of the user side are checked, the risk hidden danger is eliminated, and the safety of data interaction between the user side and the block chain is improved.
Example two
As shown in fig. 5, the present application further provides a data sharing interactive system 100 based on a blockchain, which includes:
the security auditing module 20 is used for performing security auditing on the user terminal 10 outside the blockchain alliance network requesting for interactive sharing of data, and adding the user terminal 10 passing the auditing into the blockchain alliance network;
the blockchain operation node 30 is configured to receive a data interaction request from the user terminal 10 joining the blockchain alliance network.
The judging module 40 is configured to judge a type of the data interaction request, and if the type of the data interaction request is upload shared data, the user side 10 uploads the shared data owned by the user side to the block chain operation node 30 through an intelligent contract, and specifies a data sharing range; if the type of the data interaction request is downloading shared data, calling corresponding data from the block chain 90 according to the data interaction request; the blockchain operation node 30 retrieves the corresponding data from the blockchain 90, and the retrieved data is forwarded to the user terminal 10 through the blockchain operation node 30.
The security monitoring center 80 is used for monitoring the security of the user terminal 10 in real time; calculating a risk value of the user terminal 10; comparing the risk value with a preset safety threshold, if the risk value is smaller than the preset safety threshold, allowing the user terminal 10 to perform data interaction with the blockchain 90 through the blockchain operation node 30, otherwise, prohibiting the user terminal 10 from performing data interaction with the blockchain 90 through the blockchain operation node 30.
The data sharing interactive system 100 based on the blockchain further includes:
and the data acquisition module 50 acquires heat related data of the shared data to be uploaded.
And the data processing module 60 is configured to perform attention degree evaluation on the shared data to be uploaded according to the heat degree related data, and calculate an attention heat degree value of the shared data to be uploaded.
The data processing module 60 is further configured to obtain a duplicate checking and retrieving result of the shared data to be uploaded on the blockchain 90, and calculate a repetition value between the shared data to be uploaded and the data on the blockchain 90 according to the obtained duplicate checking and retrieving result.
The data processing module 60 is further configured to comprehensively calculate a total score value of the shared data to be uploaded at the user terminal 10 according to the calculated attention heat value and the calculated repetition value.
The data comparing module 70 is further configured to compare the total score value with a preset threshold, and if the total score value is greater than the preset threshold, allow the user terminal 10 to upload the shared data to the blockchain 90 through the blockchain operating node 30, otherwise, prohibit the user terminal 10 from uploading the shared data to the blockchain 90 through the blockchain operating node 30.
The blockchain 90 includes a plurality of blocks, each block being linked to each other, each block corresponding to one type of shared data, and each block being linked to the blockchain operation node 30.
The beneficial effect that this application realized is as follows:
(1) according to the method and the device, the security audit is performed on the user side outside the block chain alliance network requesting the data interaction sharing, and the user side passing the audit is added into the block chain alliance network, so that the user side performing the data interaction with the block chain is ensured to be subjected to the security audit, and the security of the data interaction sharing is improved.
(2) According to the method and the device, the attention degree evaluation is carried out on the shared data of the block chain to be uploaded at the user side, the repeatability degree evaluation is carried out on the shared data to be uploaded at the user side and the data on the block chain, so that comprehensive scoring is carried out according to the attention degree result of the shared data to be uploaded at the user side and the data repeatability degree evaluation result of the shared data to be uploaded and the data on the block chain, uploading of the block chain is forbidden for the shared data with lower comprehensive scoring, and therefore the useful value of the shared data on the block chain is improved.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (8)
1. A data sharing interaction method based on a block chain is characterized by comprising the following sub-steps:
performing security audit on a user side outside the blockchain alliance network requesting data interactive sharing, and adding the user side passing the audit into the blockchain alliance network;
receiving a data interaction request of a user side joining a block chain alliance network;
judging the type of the data interaction request, and if the type of the data interaction request is uploading shared data, uploading the shared data owned by the user side to a block chain operation node through an intelligent contract; if the type of the data interaction request is downloading shared data, calling corresponding data from the block chain according to the data interaction request;
carrying out safety monitoring on a user side in real time; calculating a risk value of the user side according to the leak and the risk warning information of the user side;
comparing the risk value with a preset first threshold value, if the risk value is smaller than the preset first threshold value, allowing the user side to perform data interaction with the block chain, otherwise, forbidding the user side to perform data interaction with the block chain;
carrying out attention evaluation on shared data of an uploading block chain, and calculating an attention heat value of the shared data to be uploaded;
acquiring a duplicate checking and retrieving result of the shared data to be uploaded on the block chain of the user side, and calculating a repetition value of the shared data to be uploaded and the data on the block chain according to the acquired duplicate checking and retrieving result;
according to the calculated attention heat value and the repetition value, comprehensively calculating a total score value of shared data to be uploaded at a user side;
and comparing the total score value with a preset second threshold value, if the total score value is greater than the preset second threshold value, allowing the user side to upload the shared data to the block chain, otherwise, forbidding the user side to upload the shared data to the block chain.
2. The method of claim 1, wherein a first correspondence relationship between data type identifier information of data in the data interaction request and data transmission channels is preset, and a second correspondence relationship between data type identifier information of data in the data interaction request and blocks in the block chain is preset.
3. The method of claim 2, wherein the data transmission channel comprises a first segment of communication channel between the user end and the blockchain operation node and a second segment of communication channel between the blockchain operation node and the block.
4. The method according to claim 1, wherein the shared data packet is formed after the data called according to the data interaction request is encrypted by using a public key, and the shared data packet is sent to the user requesting to obtain the data.
5. The method for data sharing interaction based on the blockchain according to claim 1, wherein the method for calculating the repetition value of the shared data to be uploaded and the data on the blockchain comprises:
acquiring a key sentence paragraph of shared data to be uploaded at a user side;
filtering useless information in the key sentence paragraphs;
converting the key sentence paragraphs, wherein the converted sentences are consistent with the data format in the block chain database;
according to the converted sentences, the repetition degrees of the key sentence paragraphs are retrieved in the database of the blockchain based on semantic analysis.
6. The method according to claim 1, wherein the specified data sharing range for uploading the blockchain includes a full blockchain alliance network, a part of clients in the alliance network, or a client that needs to pass privacy authority verification when the client uploads data to the blockchain.
7. A data sharing interactive system based on block chain, the system comprising:
the safety auditing module is used for carrying out safety auditing on a user side outside the block chain alliance network requesting data interactive sharing, and adding the user side passing the auditing into the block chain alliance network;
the system comprises a block chain operation node, a block chain alliance network and a block chain operation node, wherein the block chain operation node is used for receiving a data interaction request of a user side in the block chain alliance network;
the judging module is used for judging the type of the data interaction request, and if the type of the data interaction request is the uploading shared data, the user side uploads the owned shared data to the block chain operation node through the intelligent contract; if the type of the data interaction request is downloading shared data, calling corresponding data from the block chain according to the data interaction request;
the safety monitoring center is used for carrying out safety monitoring on the user side in real time; calculating a risk value of the user side according to the leak and the risk warning information of the user side; comparing the risk value with a preset first threshold value, if the risk value is smaller than the preset first threshold value, allowing the user side to perform data interaction with the block chain, otherwise, forbidding the user side to perform data interaction with the block chain;
the data acquisition module is used for acquiring heat related data of the shared data to be uploaded;
the data processing module is used for evaluating the attention degree of the shared data of the uploading block chain according to the acquired heat degree related data and calculating the attention heat degree value of the shared data;
the data processing module is also used for acquiring a duplicate checking and retrieving result of the shared data to be uploaded on the block chain of the user side, and calculating a repetition value of the shared data to be uploaded and the data on the block chain according to the acquired duplicate checking and retrieving result;
the data processing module is also used for comprehensively calculating the total score value of the shared data to be uploaded at the user side according to the calculated attention heat value and the repetition value;
and the data comparison module is also used for comparing the total score value with a preset second threshold value, if the total score value is greater than the preset second threshold value, the user side is allowed to upload the shared data to the block chain, and otherwise, the user side is prohibited from uploading the shared data to the block chain.
8. The system of claim 7, wherein a first correspondence relationship between data type identifier information of data in the data interaction request and data transmission channels is preset, and a second correspondence relationship between data type identifier information of data in the data interaction request and blocks in the block chain is preset.
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