Private data comparison method and system
A technology of private data and comparison results, applied in the field of data comparison, can solve the problems of data privacy leakage, data opacity, etc., and achieve the effect of privacy protection
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[0062] refer to figure 1 , as an implementation of a private data comparison method, a private data comparison method deploys the same blockchain node for each participant, and different blockchain nodes form a blockchain network; each of the The blockchain nodes include ledgers and smart contracts based on blockchain storage; each participant stores the first public key, the second vector, and the comparison result into the ledger by calling the smart contract corresponding to the blockchain node Or query the first public key, the second vector and the comparison result on the chain from the account book, so that the blockchain nodes of each participant are completely consistent. The method applied to a participant terminal or a participant server comprises the following steps:
[0063] Step S100, each participant calculates the first public key according to the private key, and stores the first public key on chain into the ledger by calling the first public key chaining met...
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