Patent ID: 9608986
Date: 2017-03-28
CPC Classifications: G06F,H04L

Claim:
1. A method of verifying a user, performed by a verification server, the method comprising: registering personal information of a user for using a usage target system; receiving, via a second communication channel, system identification information of the usage target system and a restriction code from an information terminal device owned by a user; generating an internal system password for the usage target system; receiving, via a first communication channel, a plurality of characters from the usage target system, the plurality of characters being inputted by a user into the usage target system; determining whether the plurality of characters are legitimate based on the internal system password and the system identification information; sending, via the first communication channel, a result of the determination made to the usage target system; restricting the personal information of the user to be provided to the usage target system based on the restriction code; and sending, via the first communication channel, the restricted personal information to the usage target system.