:orphan:

.. title:: CONFIG_HW_UNIQUE_KEY

.. kconfig:: CONFIG_HW_UNIQUE_KEY

CONFIG_HW_UNIQUE_KEY
####################

*Hardware Unique Keys (HUK)*

Type: ``bool``

Help
====

.. code-block:: none

    This option will load the Hardware Unique Key (HUK) in the KDR
    registers of the CryptoCell peripheral and sets the LCS. It will also
    lock its flash page so that it's not accesible by the CPU until the
    next reboot.

Direct dependencies
===================

(\ :kconfig:`HAS_HW_NRF_CC310 <CONFIG_HAS_HW_NRF_CC310>` || \ :kconfig:`HAS_HW_NRF_CC312 <CONFIG_HAS_HW_NRF_CC312>`) && \ :kconfig:`NRF_CC3XX_PLATFORM <CONFIG_NRF_CC3XX_PLATFORM>` && \ :kconfig:`NORDIC_SECURITY_BACKEND <CONFIG_NORDIC_SECURITY_BACKEND>` && !\ :kconfig:`ARM_NONSECURE_FIRMWARE <CONFIG_ARM_NONSECURE_FIRMWARE>` && \ :kconfig:`MPU_ALLOW_FLASH_WRITE <CONFIG_MPU_ALLOW_FLASH_WRITE>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

No defaults. Implicitly defaults to ``n``.

Symbols selected by this symbol
===============================

- \ :kconfig:`FPROTECT <CONFIG_FPROTECT>` if \ :kconfig:`HAS_HW_NRF_ACL <CONFIG_HAS_HW_NRF_ACL>`

Symbols implied by this symbol
==============================

- \ :kconfig:`FPROTECT_ENABLE_NO_ACCESS <CONFIG_FPROTECT_ENABLE_NO_ACCESS>` if \ :kconfig:`HAS_HW_NRF_ACL <CONFIG_HAS_HW_NRF_ACL>`
- \ :kconfig:`NRFX_NVMC <CONFIG_NRFX_NVMC>` if \ :kconfig:`HAS_HW_NRF_ACL <CONFIG_HAS_HW_NRF_ACL>`

Kconfig definition
==================



At ``<nRF>/lib/hw_unique_key/Kconfig:7``

Included via ``<Zephyr>/Kconfig:8`` → ``<Zephyr>/Kconfig.zephyr:31`` → ``<Zephyr>/modules/Kconfig:6`` → ``<nRF>/doc/_build/kconfig/Kconfig.modules:2`` → ``<nRF>/Kconfig.nrf:56`` → ``<nRF>/lib/Kconfig:34``

Menu path: (Top) → Modules → nrf (/home/runner/work/sdk-nrf/sdk-nrf/ncs/nrf) → Nordic nRF Connect → Libraries

.. code-block:: kconfig

    config HW_UNIQUE_KEY
    	bool "Hardware Unique Keys (HUK)"
    	select FPROTECT if HAS_HW_NRF_ACL
    	imply FPROTECT_ENABLE_NO_ACCESS if HAS_HW_NRF_ACL
    	imply NRFX_NVMC if HAS_HW_NRF_ACL
    	depends on (HAS_HW_NRF_CC310 || HAS_HW_NRF_CC312) && NRF_CC3XX_PLATFORM && NORDIC_SECURITY_BACKEND && !ARM_NONSECURE_FIRMWARE && MPU_ALLOW_FLASH_WRITE
    	help
    	  This option will load the Hardware Unique Key (HUK) in the KDR
    	  registers of the CryptoCell peripheral and sets the LCS. It will also
    	  lock its flash page so that it's not accesible by the CPU until the
    	  next reboot.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*