User data anonymous sharing method based on league chain encryption

Abstract

The invention discloses a user data anonymous sharing method based on league chain encryption. The method comprises the steps as follows: each founding member mechanism builds a respectively corresponding network data collection node and accesses a league chain network, to form an initial chain; a common member mechanism builds the network data collection node after passing through verification, and sequentially accesses the initial chain to build a league chain; the network data collection node acquires a pseudonym identity and symmetric keys corresponding to the pseudonym identity; after acquiring data, the network data collection node sends an uploading request to a network data storage node; the final encrypted data is decrypted via the private key pair of the network data storage nodeto acquire pseudonym encryption data; the network data storage node stores a corresponding relationship between the pseudonym encryption data and the pseudonym identity into a local database; and thenetwork data storage node compresses the data stored within set time into a block, and adds the block into the league chain. Through building the league chain, the permissions of the common member mechanisms are effectively controlled, and the privacy of each member mechanism is ensured.

Description

technical field [0001] The invention relates to the technical field of data exchange, in particular to a method for anonymously sharing user data based on alliance chain encryption. Background technique [0002] Blockchain is a new technology that applies distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other modes. It can use block chain data structure to verify and store data, and use distributed node consensus algorithm to generate and Update data, use cryptography to ensure the security of data transmission and access, use smart contracts composed of automated script codes to program and manipulate data, blockchain and related encryption technologies are closely related to applications such as data sharing and data use security . [0003] At present, blockchain technology is gradually being applied in many fields such as banking, finance, insurance, etc., and public chain technology is mostly used to build the underlyi...

AI Technical Summary

Problems solved by technology

[0003] At present, blockchain technology is gradually being applied in many fields such as banking, finance, insurance, etc., and public chain technology is mostly used to build the underlying blockchain. Since public chain technology lacks corresponding control over the read and write permissions of blockchain data, therefore The authenticity of the data uploaded by each institution cannot be guaranteed; in addition, each institution usually needs to verify each other's real identity when exchanging data, which is not conducive to protecting the privacy of the data provider, thus limiting the scale of shared data

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