Patent ID: 11943362
Assignee: nan
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The system of claim 1, wherein the user terminal is configured to
transmit blockchain alternative authentication service registration request information to the blockchain alternative authentication server,
when the blockchain alternative authentication server requests user-identification personal information correspondingly, provide the blockchain alternative authentication server with the user-identification personal information acquired,
when the blockchain alternative authentication server makes a request for the user-authentication information, acquire the user-authentication information and the terminal identification information of the user terminal and transmit the same to the blockchain alternative authentication server, and
receive alternative authentication keys including the public key and the private key from the blockchain alternative authentication server and store the alternative authentication keys for registration for a blockchain alternative authentication service; and
the blockchain alternative authentication server is configured to
provide the user-identification personal information to a user-identification institution server to request user authentication,
by applying a user-identification result value corresponding thereto and the user-authentication information received from the user terminal, generate the alternative authentication keys including the public key and the private key and provide the same to the user terminal,
select multiple nodes in which the personal information transaction statement for the user of the user terminal is to be stored,
encrypt the personal information transaction statement, which is a record of the personal information received through the user terminal, with the public key, and
store the encrypted personal information transaction statement in a plurality of the service-providing node servers for the selected nodes in a distributed manner for registration.