BIOS/UEFI Flashcards
firmware
software on a chip and contains BIOS program code in flash memory of motherboard
UEFI
64 bit processors and GUI
- GUID partition table
- faster boot up system
CMOS
non-volatile memory that stores BIOS source
POST
power on self test
- diagnostic testing sequence to check computer’s basic I/O system
hardware root of trust (RoT)
cryptographic module embedded in computer system that endorses trusted execution
- used to scan boot metrics in OS files to verify signatures and use to sign the report
TPM
spec for hardware-based storage of digital certificates, keys, hashed passwords, etc.
- RoT
- secured boot up
- provides encryption
hardware security module (HSM)
appliance for generating and storing cryptographic keys that is less susceptible to tampering and insider threats
secure boot
prevent malicious apps from loading into OS during the startup process