Patent ID: 11874927
Assignee: VIA LABS, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. The secure firmware update method according to claim 8, wherein
the first Serial Peripheral Interface bus is electrically coupled to the second Serial Peripheral Interface bus, and the USB power delivery control chip is electrically coupled to the second non-volatile memory chip through a general-purpose input/output pin,
an operating system executed on the host issues a secure update command about updating the second firmware code of the second integrated circuit chip to the USB-C hub after detecting that a new firmware code corresponding to the second integrated circuit chip in the USB-C hub is released and downloaded wherein the secure update command comprises the firmware code update data and a digital signature corresponding to the firmware code update data,
the firmware code update data are transferred to the spare data storage space, and
the verification procedure is a signature verification procedure wherein the secure firmware update console uses the digital signature and the firmware code update data stored in the spare data storage space to perform the signature verification procedure.