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

Claim 6:
7. The system of claim 2, wherein the user terminal comprises:
a wireless communication unit performing data communication with the service provider server and the blockchain alternative authentication server over a wired/wireless data communication network;
a display unit;
an input unit;
a biometric recognition information detection unit detecting and outputting biometric information of the user; and
a terminal control unit comprising a processor configured to
transmit the one-time private key issue request information and the blockchain alternative authentication service registration request information to the blockchain alternative authentication server through the wireless communication unit,
acquire the user-identification personal information through the display unit and the input unit when the user-identification personal information is requested correspondingly and provide the user-identification personal information to the blockchain alternative authentication server,
when either the request for the user-authentication information from the blockchain alternative authentication server or the request for the required personal information field information is made, acquire the biometric information through the biometric recognition information detection unit, acquire a personal identification number (PIN) through the display unit and the input unit, and acquire the user-authentication information including the biometric information and the personal identification number,
transmit the acquired user-authentication information and the acquired terminal identification information to the blockchain alternative authentication server through the wireless communication unit, and
receive the 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 the blockchain alternative authentication service.