Authentication System and Method based on anonymous protocol in Permissioned Blockchian, RECORDING MEDIUM FOR PERFORMING THE METHOD

摘要

The present invention discloses a user authentication system and method based on an anonymous protocol in a permissioned blockchain, and a recording medium for performing the same. In the permission type blockchain according to an aspect of the present invention, an anonymous protocol-based user authentication system manages users through issuance and management of a user's public key certificate, and an anonymous credential system according to the user's request. A private blockchain server that issues a Pseudo ID through; Generate a pair of public key and private key, register the root public key, public key, and user information to obtain a public key certificate, perform user authentication with a message containing the public key and private key and a public key certificate, and the above A user terminal participating in a private blockchain requesting issuance of a pseudo ID through a private blockchain server; And a consortium blockchain in which one or more private blockchains are combined.