A multi-chain architecture information sharing system based on blockchain technology

A technology of information sharing and blockchain, which is applied in the field of multi-chain architecture information sharing system, can solve the problems of poor security and sharing cost, and achieve the effect of protecting security, strong consistency, and protecting against theft or tampering

Active Publication Date: 2022-01-04
湖南宸瀚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above methods have put forward certain protection measures for data information security, the security and sharing cost are still in a poor balance

Method used

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  • A multi-chain architecture information sharing system based on blockchain technology
  • A multi-chain architecture information sharing system based on blockchain technology
  • A multi-chain architecture information sharing system based on blockchain technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]A multi-chain architecture information sharing system based on blockchain technology, the sharing system includes: a storage unit for storing the shared information of the provider; a computing unit for performing extraction and processing operations on the shared information, and output The result information after the operation; the verification unit is used to verify the validity of the source information, the result information and the encrypted information; the matching unit is used to record the shared information and match the shared information with the information requirements; in the shared system Maintain at least one information chain and more than one sharing chain; the provider is connected to the information chain; the receiver is connected to the sharing chain; the information chain and the sharing chain are established and maintained in the form of an alliance chain; All nodes are allowed to connect to the information chain and the shared chain after they...

Embodiment 2

[0065] In order to ensure that after the provider provides information sharing, information additions, deletions, and modifications can be traced, this embodiment should be understood as at least including all the features of any one of the foregoing embodiments, and further improved on the basis of it:

[0066] Each node on the chain, including the provider, has a pair of unique key pairs based on asymmetric encryption, including one public key Pkey and one private key Skey; the private key Skey is automatically encrypted by the node Safekeeping; the public key Pkey is broadcast to the whole chain and can be obtained by all nodes on the chain;

[0067] as attached image 3 , further, when the storage node obtains the encrypted sub-information set Afterwards, a hash function Hash() operation is performed on each piece of encrypted sub-information, so as to obtain a plurality of fixed-length sub-information summaries about the encrypted sub-information , and its sub-informa...

Embodiment 3

[0080] This embodiment should be understood as at least including all the features of any one of the foregoing embodiments, and further improvements on the basis of it:

[0081] Since the data sharing system of the present invention adopts block chain as technical support, it can further match and maintain a plurality of said providers and a plurality of said demand parties for information transactions;

[0082] In this embodiment, in addition to providing the information to be shared, the provider may also target the information I or multiple sub-information i n Set the quotation of information; the quotation includes the use of legal currency for transactions, or specifying equivalent transactions in the form of information exchange; in specific circumstances, the value or value-equivalent information that can be provided by the provider and the demander can be seen;

[0083] After matching the information requirements, the matching node includes matching information quotati...

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PUM

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Abstract

The present invention relates to a multi-chain architecture information sharing system based on blockchain technology. The sharing system includes: a storage unit, a computing unit, a verification unit and a matching unit; at least one or more information chains and more than one information chain are maintained in the sharing system. Shared chain: the provider connects to the information chain, uses the information chain to provide the encrypted information after homomorphic encryption of the source information, and uses the encrypted information for further processing to obtain the encrypted information result, and the information demander obtains it through the shared chain Homomorphically encrypt information results and perform homomorphic decryption to effectively use the data of the source information without touching the source information. The present invention combines the features of block chain and homomorphic encryption to ensure that the source information will not be leaked, and at the same time, it will not be arbitrarily deleted from the source of the information.

Description

technical field [0001] The present invention relates to the field of information sharing. Specifically, it relates to a multi-chain architecture information sharing system based on blockchain technology. Background technique [0002] With the rapid development of current software and hardware technologies, massive amounts of data are generated every day in the field of electronic information, including a large number of enterprises and organizations through processing, sorting, and deepening calculations of these massive data, and have a group of high-value Value-added data collections become data assets. On the other hand, there are entities in the second aspect, hoping to obtain these data with less time or money cost, so as to realize the value in other fields. For example, a large e-commerce retail company may have a data set that contains sales data for the past ten years, including the sales habits of millions of buyers, and the sales strategies of a large number of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/00H04L9/32
CPCH04L9/008H04L9/3239H04L9/3247H04L9/3265H04L9/50
Inventor 曹源汪大明邓罡来飞付宗波周忠宝曹宇陈磊曹恒曲波谢超良唐奕易江义陈军戴俨炯
Owner 湖南宸瀚科技有限公司
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