Patent ID: 11899795
Assignee: SECURITY PLATFORM INC.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 4:
5. A secure boot method performed by an electronic device,
operating a boot loader of the electronic device by supplying a power;
checking a predetermined public key storage area to determine whether a first public key for verifying a signature of a firmware is written;
verifying integrity of the firmware with the first public key when the first public key is written in the public key storage area as a result of the checking; and
verifying the integrity of the firmware with a second public key embedded in the boot loader, when the first public key is not written in the public key storage area as the result of the checking,
wherein the predetermined public key storage area is a memory area different from a memory area in which the boot loader is stored.