:orphan:

.. title:: choice RNG_GENERATOR_CHOICE: Random generator

.. _choice_22:

.. describe:: choice RNG_GENERATOR_CHOICE: Random generator

*Random generator*

Type: ``bool``

Help
====

.. code-block:: none

    Platform dependent non-cryptographically secure random number support.

    If the entropy support of the platform has sufficient performance
    to support random request then select that. Otherwise, select the
    XOROSHIRO algorithm

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

(\ :option:`SOC_MKW40Z4 <CONFIG_SOC_MKW40Z4>` && \ :option:`SOC_SERIES_KINETIS_KWX <CONFIG_SOC_SERIES_KINETIS_KWX>`) || (\ :option:`SOC_MKW41Z4 <CONFIG_SOC_MKW41Z4>` && \ :option:`SOC_SERIES_KINETIS_KWX <CONFIG_SOC_SERIES_KINETIS_KWX>`) || \ :option:`ENTROPY_GENERATOR <CONFIG_ENTROPY_GENERATOR>` || \ :option:`ENTROPY_HAS_DRIVER <CONFIG_ENTROPY_HAS_DRIVER>` || \ :option:`TEST_RANDOM_GENERATOR <CONFIG_TEST_RANDOM_GENERATOR>`

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

Defaults
========

- \ :option:`XOROSHIRO_RANDOM_GENERATOR <CONFIG_XOROSHIRO_RANDOM_GENERATOR>`
- \ :option:`XOROSHIRO_RANDOM_GENERATOR <CONFIG_XOROSHIRO_RANDOM_GENERATOR>`
- \ :option:`XOROSHIRO_RANDOM_GENERATOR <CONFIG_XOROSHIRO_RANDOM_GENERATOR>` if \ :option:`ENTROPY_RV32M1_TRNG <CONFIG_ENTROPY_RV32M1_TRNG>`
- \ :option:`ENTROPY_DEVICE_RANDOM_GENERATOR <CONFIG_ENTROPY_DEVICE_RANDOM_GENERATOR>`

Choice options
==============

- \ :option:`TIMER_RANDOM_GENERATOR <CONFIG_TIMER_RANDOM_GENERATOR>`
- \ :option:`ENTROPY_DEVICE_RANDOM_GENERATOR <CONFIG_ENTROPY_DEVICE_RANDOM_GENERATOR>`
- \ :option:`XOROSHIRO_RANDOM_GENERATOR <CONFIG_XOROSHIRO_RANDOM_GENERATOR>`

Kconfig definitions
===================



At ``<Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.mkw40z4:49``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arm/nxp_kinetis/Kconfig.defconfig:3`` → ``<Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.series:11``

Menu path: (Top)

.. code-block:: kconfig

    choice RNG_GENERATOR_CHOICE
    	bool
    	default XOROSHIRO_RANDOM_GENERATOR
    	depends on SOC_MKW40Z4 && SOC_SERIES_KINETIS_KWX

----

At ``<Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.mkw41z4:88``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:19`` → ``<BuildDir>/kconfig/Kconfig.soc.defconfig:1`` → ``<Zephyr SoC>/arm/nxp_kinetis/Kconfig.defconfig:3`` → ``<Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.series:11``

Menu path: (Top)

.. code-block:: kconfig

    choice RNG_GENERATOR_CHOICE
    	bool
    	default XOROSHIRO_RANDOM_GENERATOR
    	depends on SOC_MKW41Z4 && SOC_SERIES_KINETIS_KWX

----

At ``<Zephyr Driver>/entropy/Kconfig.rv32m1:16``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:32`` → ``<Zephyr Driver>/Kconfig:30`` → ``<Zephyr Driver>/entropy/Kconfig:20``

Menu path: (Top) → Device Drivers → Entropy Drivers

.. code-block:: kconfig

    choice RNG_GENERATOR_CHOICE
    	bool
    	default XOROSHIRO_RANDOM_GENERATOR if ENTROPY_RV32M1_TRNG
    	depends on ENTROPY_GENERATOR

----

At ``<Zephyr Subsystem>/random/Kconfig:18``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``<Zephyr Subsystem>/Kconfig:53``

Menu path: (Top) → Sub Systems and OS Services → Random Number Generators

.. code-block:: kconfig

    choice RNG_GENERATOR_CHOICE
    	bool "Random generator"
    	default ENTROPY_DEVICE_RANDOM_GENERATOR
    	depends on ENTROPY_HAS_DRIVER || TEST_RANDOM_GENERATOR
    	help
    	  Platform dependent non-cryptographically secure random number support.
	  
    	  If the entropy support of the platform has sufficient performance
    	  to support random request then select that. Otherwise, select the
    	  XOROSHIRO algorithm

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