Patent ID: 11968525
Assignee: KSMARTECH CO., LTD
Field: Digital communication (Electrical engineering)
Classification: CPC H  B  G | IPC B  G  H

Claim 5:
6. The vehicle digital key sharing service method of claim 1, the step of sharing the digital key comprises: receiving, by the master terminal, an input selection of a menu for sharing a digital key through a dedicated application; performing a primary authentication process for a door key sharing service through the dedicated application of the master terminal by using an identity verification means stored in a secure world; performing a secondary authentication process for a door key sharing service using a compound authentication method in which authentication is performed via an identity verification means in the management server through the dedicated application of the master terminal;
setting the restriction value for the digital key stored in the secure world of the master terminal;
receiving a selected shared terminal to share the digital key and forwarding the restriction value for the digital key and information on the shared terminal to the management server; and storing, by the management server, the restriction value for the digital key and the information on the shared terminal and transmitting a digital key sharing message to the shared terminal.