CN111061695B - File sharing method and system based on block chain - Google Patents
File sharing method and system based on block chain Download PDFInfo
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- CN111061695B CN111061695B CN201911318037.8A CN201911318037A CN111061695B CN 111061695 B CN111061695 B CN 111061695B CN 201911318037 A CN201911318037 A CN 201911318037A CN 111061695 B CN111061695 B CN 111061695B
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- G06F16/10—File systems; File servers
- G06F16/17—Details of further file system functions
- G06F16/176—Support for shared access to files; File sharing support
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Abstract
The invention provides a file sharing method and a system based on a block chain, wherein the method comprises the following steps: receiving a pre-existing document for each of a plurality of participants from the participant; by storing pre-existing documents in a blockchain; and protected in blocks of a blockchain; analyzing a pre-existing document to obtain a hierarchical structure; receiving a syndication document, the syndication document being developed by two or more of the plurality of participants; storing the federated document in another chunk of the blockchain; analyzing the joint document to obtain a hierarchical structure; comparing the hierarchical structure of the combined document with the hierarchical structure of a pre-existing document; generating an affinity level between the federated document and a pre-existing document; and determining the attribution of the joint document according to the affinity level. The confidential information or file is pre-existing information or file and is pre-archived and securely shared, and then the belonging determination is made based on the confidential information or file solving the related file developed later without directly disclosing the own decryption information or file to the other party.
Description
Technical Field
The invention belongs to the technical field of information sharing, and particularly relates to a block chain-based file sharing method and system.
Background
Blockchain is now a shared and distributed ledger that can facilitate the process of recording transactions and tracking assets in a peer-to-peer (P2P) network. The asset may be tangible (e.g., house, car, etc.). Assets may also be intangible, such as documents, such as files, copyrights, or brands. Joint documentation of two or more parties is developed and subject to disputes. When two or more parties sign a joint development agreement, one party may not want to disclose its confidential information to the other party, which causes unnecessary divergence in the cooperation process between the two parties and needs to disclose the confidential information or related documents to the other party to continue the cooperation.
In view of the above, there is a need for a solution to the above technical problem, in which confidential information or documents are pre-existing information or documents, and are pre-archived and securely shared, and then a belonging determination is made based on the confidential information or documents to resolve documents related to later development.
Disclosure of Invention
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a method and a system for sharing a file based on a block chain, which aim to solve the problem that two or more parties must disclose information or files to each other when exchanging the information or files.
In order to achieve the purpose, the invention adopts the following technical scheme:
a file sharing method based on a block chain is characterized by comprising the following steps:
receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants;
storing, by a computer, the pre-existing document in a blockchain;
securing, by a computer, the pre-existing document in a block of a blockchain such that no other party of the plurality of parties can access the pre-existing document other than the party from which the pre-existing file was received;
analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document;
receiving, by a computer, a federated document, the federated document being developed by two or more of a plurality of participants;
storing, by a computer, the federated document in another chunk of a blockchain;
analyzing, by a computer, the federated document to produce a hierarchical structure of technical fields or content categories for the federated document;
comparing and mapping, by a computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document;
generating, by the computer, an affinity level between the federated document and the pre-existing document based on the comparing and the mapping;
determining, by a computer, an attribution of the federated document according to the affinity level.
Preferably, the level of affinity between the generated syndication document and the pre-existing document is defined in an intelligent contract and the level of affinity is automatically determined based on the rules.
Preferably, securing the pre-existing document in the tiles of the tile chain is performed using public key cryptography.
Preferably, comparing and mapping the joint document to the pre-existing document is performed based on machine learning.
Preferably, the machine learning includes natural language processing.
Preferably, the affinity level is determined based on a specified percentage match between the federated document and the pre-existing document.
Preferably, comparing and mapping the syndicated document to the pre-existing document is based on a hierarchy of the syndicated document and a hierarchy of the pre-existing document.
Preferably, the machine learning is authorized to access the federated document and the pre-existing document.
In addition, the present invention also provides a block chain-based file sharing system, which is characterized by comprising:
a first document receiving module for receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants;
a first storage module for storing, by a computer, the pre-existing document in a blockchain;
a document protection module for protecting, by a computer, the pre-existing document in a block of a blockchain such that no other of the plurality of parties can access the pre-existing document other than the party from which the pre-existing document was received;
a first analysis module for analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document;
a second document receiving module to receive, by a computer, a federated document, the federated document being developed by two or more of a plurality of participants;
a second storage module for storing, by a computer, the federated document in another block of a blockchain;
a second analysis module for analyzing, by a computer, the federated document to produce a hierarchy of technical fields or content categories for the federated document;
a comparison and mapping module for comparing and mapping, by a computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document;
an affinity level generation module for generating, by a computer, an affinity level between a federated document and the pre-existing document based on a comparison and a mapping;
a result obtaining module for determining, by the computer, attribution of the federated document according to the affinity level.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a block chain-based file sharing method and a block chain-based file sharing system, wherein the method comprises the following steps of: receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants; storing, by a computer, the pre-existing document in a blockchain; securing, by a computer, the pre-existing document in a block of a blockchain such that no other of the plurality of parties can access the pre-existing document other than the party from which the pre-existing file was received; analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document; receiving, by a computer, a federated document, the federated document being developed by two or more of a plurality of participants; storing, by a computer, the federated document in another chunk of a blockchain; analyzing, by a computer, the federated document to produce a hierarchical structure of technical fields or content categories for the federated document; comparing and mapping, by a computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document; generating, by the computer, an affinity level between the federated document and the pre-existing document based on the comparing and the mapping; determining, by a computer, an attribution of the federated document according to the affinity level. The confidential information or file is pre-existing information or file and is pre-archived and securely shared, and then the belonging determination is made based on the confidential information or file solving the related file developed later without directly disclosing the own decryption information or file to the other party.
Drawings
FIG. 1 is a block diagram of a block chain based file sharing method according to the present invention;
FIG. 2 is a block diagram of a block chain based file sharing system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-2, the file sharing method based on the block chain according to the present invention includes the following steps:
receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants;
storing, by a computer, the pre-existing document in a blockchain;
securing, by a computer, the pre-existing document in a block of a blockchain such that no other party of the plurality of parties can access the pre-existing document other than the party from which the pre-existing file was received;
analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document;
receiving, by a computer, a federated document, the federated document being developed by two or more of a plurality of participants;
storing, by a computer, the federated document in another chunk of a blockchain;
analyzing, by a computer, the federated document to produce a hierarchy of technical fields or content categories for the federated document;
comparing and mapping, by a computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document;
generating, by the computer, an affinity level between the federated document and the pre-existing document based on the comparing and the mapping;
determining, by a computer, an attribution of the federated document according to the affinity level.
In particular, for joint development protocols, one or more parties involved in developing a technology may not wish to disclose their confidential information to another party. This information may or may not be pre-existing within the protocol. A blockchain based system (e.g., an etherhouse system) may be used to allow parties to place their preexisting documents into the system. This may be accomplished, for example, by placing the documents of the parties in different blocks of a blockchain. The pre-existing documents of each party may be protected in the system and not available to the other party. A P2P network may be used with the disclosed system. If the use of a P2P network is allowed, it can enable a network that contains only the parties and provide evidence about who the parties prove themselves, and the pre-existing document is identical to that stated. This can protect the system from tampering, fraud or cyber crime. Through the use of Identification (ID) and permissions, parties can specify pre-existing document details that they wish to allow others to view. The rights of a particular party can be extended. For example, as joint development progresses, a party may be authorized to access some or all of the pre-existing documents of all parties in order to continue development. Rights and encryption can be used to prevent unauthorized access to the P2P network and to ensure that the parties are their purported identities. Privacy can be maintained through encryption techniques and data partitioning techniques to provide selective visibility of the blockchain by parties. Either the existing file or the identities of the parties that own the previous file may be hidden. After the conditions are fulfilled, the parties cannot tamper with the existing files and the records of the syndicated documents. An existing document for a party may be analyzed to generate a hierarchy of technical fields or categories about the content of the existing document. For example, a pre-existing document may relate to computer technology, may relate to computer hardware, may even relate to the manufacture of a central computing unit (CPU), and so on, such that a hierarchy of pre-existing documents may create the document. That is, the hierarchy may include multiple technology domain levels. The disclosed system may map a federated document to a pre-existing document. For example, the federated document may be compared and mapped to pre-existing documents to build or generate a hierarchy or confidence level to determine to which party the federated document primarily belongs. A hierarchy may be created for documents that are developed jointly. Once these hierarchies are generated, a mapping and comparison may be made between the hierarchy of the existing document and the hierarchy of the federated document at each party to determine the affinity between the hierarchy of the existing document and the hierarchy of the document. For example, if a technical region of a hierarchy level of a pre-existing document matches (e.g., 90% matches) a technical region of a corresponding level of a hierarchy of a federated document, a high affinity (e.g., 1) may be assigned to the technical domain. Similarly, a medium affinity (e.g., 0.5) may be assigned to another level of technology area, and so on. A final affinity between the hierarchy of the existing document and the hierarchy of the federated document may be generated based on the affinities of the different technology domain levels. The final affinity may be a median affinity of affinities at different technology domain levels, may be an arithmetic mean affinity of affinities at different technology domain levels, may be a maximum affinity of those affinities at different technology domain levels, may be a weighted affinity of those affinities at different technology domain levels, may be a standard deviation of those affinities at different technology domain levels, or may be any meaningful statistical value of those affinities at different technology domain levels. Based on the final affinity, ownership of the federated document may be determined. That is, the party with the highest affinity may have 100% of the syndicated documents, may have 80% of the syndicated documents, and so on. The percentage may be determined based on the affinity of the parties. The lowest affinity party may not have any ownership of the syndicated document.
In some embodiments, the generating an affinity level between the federated document and the pre-existing document is defining affinity rules in a smart contract, and automatically determining the affinity level based on the rules. Smart contracts may be used as a basis for resolving ownership of commonly developed documents, and if one party is determined to be the owner of some aspect of the commonly developed technology, the other party may be a proprietary licensee in the commonly developed domain. Any ownership and usage rights can be listed in the smart contract and automatically managed.
In some embodiments, protecting the pre-existing document in the blocks of the blockchain is performed using public key cryptography, i.e., the owner uploading the document has specific rights to modify access.
In some embodiments, comparing and mapping the federated document to the pre-existing document is performed based on machine learning.
In some embodiments, the machine learning includes natural language processing.
Machine learning schemes such as clustering algorithms, named entity algorithms, multi-class classification, etc. may be used to analyze federated documents and pre-existing documents to determine ownership of the federated documents. Additionally, machine learning schemes may use natural language processing to compare existing documents to federated documents. Natural language processing may include speech recognition, natural language understanding, and natural language generation. Natural language processing may also include morphological segmentation, part-of-speech tagging, parsing, sentence breaking, work segmentation, term extraction, machine translation, relationship extraction, sentiment analysis, topic segmentation, word sense disambiguation, automatic summarization, coreference parsing, disclosure analysis, and the like.
In some embodiments, the affinity level is determined according to a specified percentage match between the federated document and the pre-existing document. The affinity may be a pre-specified threshold, e.g., a 60% match between the pre-existing document and the federated document.
In some embodiments, comparing and mapping the federated document to the preexisting document is based on a hierarchical structure of the federated document and a hierarchical structure of the preexisting document.
In some embodiments, the machine learning is authorized to access the federated document and the pre-existing document.
In addition, the present invention also provides a block chain based file sharing system, which includes:
a first document receiving module for receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants;
a first storage module for storing, by a computer, the pre-existing document in a blockchain;
a document protection module for protecting, by a computer, the pre-existing document in a block of a blockchain such that no other of the plurality of parties can access the pre-existing document other than the party from which the pre-existing document was received;
a first analysis module for analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document;
a second document receiving module to receive, by a computer, a federated document, the federated document being developed by two or more of a plurality of participants;
a second storage module for storing, by a computer, the federated document in another block of a blockchain;
a second analysis module for analyzing, by a computer, the federated document to produce a hierarchy of technical fields or content categories for the federated document;
a comparison and mapping module for comparing and mapping, by a computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document;
an affinity level generation module for generating, by a computer, an affinity level between a federated document and the pre-existing document based on a comparison and a mapping;
a result obtaining module for determining, by the computer, attribution of the federated document according to the affinity level.
In summary, the working principle of the invention is as follows:
the invention provides a block chain-based file sharing method and a block chain-based file sharing system, wherein the method comprises the following steps of: receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants; storing, by a computer, the pre-existing document in a blockchain; securing, by a computer, the pre-existing document in a block of a blockchain such that no other of the plurality of parties can access the pre-existing document other than the party from which the pre-existing file was received; analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document; receiving, by a computer, a federated document, the federated document being developed by two or more of a plurality of participants; storing, by a computer, the federated document in another chunk of a blockchain; analyzing, by a computer, the federated document to produce a hierarchy of technical fields or content categories for the federated document; comparing and mapping, by a computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document; generating, by the computer, an affinity level between the federated document and the pre-existing document based on the comparing and the mapping; determining, by a computer, an attribution of the federated document according to the affinity level. The confidential information or file is pre-existing information or file and is pre-archived and securely shared, and then the attribution determination is made on the basis of the confidential information or file solving the file relating to the later development, without directly disclosing the own decryption information or file to the other party.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (9)
1. A file sharing method based on a block chain is characterized by comprising the following steps:
receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants;
storing, by a computer, the pre-existing document in a blockchain;
securing, by a computer, the pre-existing document in a block of a blockchain such that no other party of the plurality of parties can access the pre-existing document other than the party from which the pre-existing file was received;
analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document;
receiving, by a computer, a syndication document, the syndication document being developed by two or more of a plurality of participants;
storing, by a computer, the federated document in another chunk of a blockchain;
analyzing, by a computer, the federated document to produce a hierarchical structure of technical fields or content categories for the federated document;
comparing and mapping, by the computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document;
generating, by a computer, an affinity level between the federated document and the pre-existing document based on the comparison and the mapping;
determining, by a computer, an attribution of the federated document according to the affinity level.
2. The blockchain-based file sharing method according to claim 1, wherein an affinity level between the generated federated document and the pre-existing document is an affinity rule defined in a smart contract, and the affinity level is automatically determined based on the rule.
3. The blockchain-based file sharing method according to claim 1, wherein protecting the pre-existing document in the blocks of the blockchain is performed using public key cryptography.
4. The blockchain-based file sharing method according to claim 1, wherein comparing and mapping the federated document to the pre-existing document is performed based on machine learning.
5. The blockchain-based file sharing method according to claim 4, wherein the machine learning includes natural language processing.
6. The blockchain-based file sharing method according to claim 1, wherein the affinity level is determined according to a specified matching percentage between the syndicated document and the pre-existing document.
7. The blockchain-based file sharing method according to claim 1, wherein comparing and mapping the union document with the pre-existing document is based on a hierarchical structure of the union document and a hierarchical structure of the pre-existing document.
8. The blockchain-based file sharing method according to claim 4, wherein the machine learning is authorized to access the federated document and the pre-existing document.
9. A blockchain based file sharing system, comprising:
a first document receiving module for receiving, by a computer, a pre-existing document of a participant from each of a plurality of participants;
a first storage module for storing, by a computer, the pre-existing document in a blockchain;
a document protection module for protecting, by a computer, the pre-existing document in blocks of a blockchain such that no other party of the plurality of parties can access the pre-existing document other than the party from which the pre-existing document was received;
a first analysis module for analyzing, by a computer, a pre-existing document to generate a hierarchy of technical fields and content categories for the pre-existing document;
a second document receiving module to receive, by a computer, a syndication document, the syndication document being developed by two or more of a plurality of participants;
a second storage module for storing, by a computer, the federated document in another block of a blockchain;
a second analysis module for analyzing, by a computer, the federated document to produce a hierarchy of technical fields or content categories for the federated document;
a comparison and mapping module for comparing and mapping, by a computer, the federated document with the pre-existing document according to the hierarchical structure of the federated document and the hierarchical structure of the pre-existing document;
an affinity level generation module for generating, by a computer, an affinity level between the federated document and the pre-existing document based on a comparison and a mapping;
a result obtaining module for determining, by the computer, attribution of the federated document according to the affinity level.
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| CN109040012A (en) * | 2018-06-19 | 2018-12-18 | 西安电子科技大学 | A kind of data security protecting and sharing method based on block chain and system and application |
| CN110417781A (en) * | 2019-07-30 | 2019-11-05 | 中国工商银行股份有限公司 | File encryption management method, client and server based on block chain |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109040012A (en) * | 2018-06-19 | 2018-12-18 | 西安电子科技大学 | A kind of data security protecting and sharing method based on block chain and system and application |
| CN110417781A (en) * | 2019-07-30 | 2019-11-05 | 中国工商银行股份有限公司 | File encryption management method, client and server based on block chain |
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