Method for providing user identity based on zero-knowledge proof over blockchain network by using user certificate and blockchain system using the same
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United States of America Patent
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Jan 9, 2024
Grant Date -
N/A
app pub date -
Jul 17, 2023
filing date -
Apr 20, 2023
priority date (Note) -
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Abstract
A method for providing a user identity based on zero-knowledge proof over a blockchain network by using a user certificate is provided. The method includes steps of: an address abstraction smart contract (a) instructing the user terminal which made a user identity generating request to generate the user identity corresponding to the user certificate issued from a certification authority and generate a user identity proof by using user identity verifying parameters, the user identity, the user certificate and a certification authority public key, to thereby prove that the user identity is generated from the user certificate issued by the certification authority; and (b) upon receiving a user identity registering request from the user terminal, (i) verifying the user identity proof by using the user identity verifying parameters, the user identity, the certification authority public key and the user identity proof and (ii) registering the user identity upon successful verification.
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