DEVICE FOR PROTECTION OF UEFI BIOS FROM UNAUTHORIZED CHANGES Russian patent published in 2023 - IPC G06F21/57 G06F12/14 

FIELD: computer technology.

SUBSTANCE: invention relates to the field of computer technology; it is intended for protection of UEFI BIOS code placed on SPI Flash microcircuit from unauthorized changes. A device for protection of UEFI BIOS from unauthorized changes contains a microcontroller placed on the motherboard of a computing device between a central processor and SPI FLASH microcircuit of a computer system, wherein the protection device is connected to a power supply unit of the computer system, the microcontroller operates independently of the central processor and contains own RAM, long-term memory with a loaded database of user access rights, as well as program control modules with implementation of all commands of SPI FLASH protocol operation and content of SPI FLASH microcircuit for its emulation, as well as for processing and analysis of input data and commands before their entering SPI Flash microcircuit and the computer system for controllable access.

EFFECT: increase in protection of UEFI BIOS from unauthorized changes.

3 cl, 1 dwg