Patent ID: 11874914
Assignee: PASSLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A non-transitory computer readable information recording medium having stored therein a token terminal program that, when executed by a token terminal computer, causes the token terminal computer to:
receive, from a user, access information to sign-in to a server;
transmit the specified access information to a management device;
receive, from the management device, a user seed which is obtained by the management device applying a first function to at least the transmitted access information and a secret site seed, wherein the secret site seed is assigned to the server and shared with the management device;
record the received user seed;
obtain a share seed independently from the server, wherein the share seed is shared with the server;
apply a second function to at least the obtained share seed and the recorded user seed, thereby obtaining a key code; and
present the obtained key code to the user, thereby enabling the user to attempt a sign-in specifying the presented key code and the access information from an access terminal to the server.