choice CSPRNG_GENERATOR_CHOICE: Cryptographically secure random generator

Cryptographically secure random generator

Type: bool

Help

Platform dependent cryptographically secure random number support.

If the hardware entropy support of the platform has sufficient
performance to support CSRNG then select that. Otherwise, select
CTR-DRBG CSPRNG as that is a FIPS140-2 recommmended CSPRNG.

Kconfig definitions

At <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.mkw40z4:45

Included via Kconfig:8 → Kconfig.zephyr:25 → <BuildDir>/kconfig/Kconfig.soc.defconfig:1 → <Zephyr SoC>/arm/nxp_kinetis/Kconfig.defconfig:7 → <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.series:11

Menu path: (Top)

choice CSPRNG_GENERATOR_CHOICE
    bool
    default CTR_DRBG_CSPRNG_GENERATOR
    depends on SOC_MKW40Z4 && SOC_SERIES_KINETIS_KWX

At <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.mkw41z4:72

Included via Kconfig:8 → Kconfig.zephyr:25 → <BuildDir>/kconfig/Kconfig.soc.defconfig:1 → <Zephyr SoC>/arm/nxp_kinetis/Kconfig.defconfig:7 → <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.series:11

Menu path: (Top)

choice CSPRNG_GENERATOR_CHOICE
    bool
    default CTR_DRBG_CSPRNG_GENERATOR
    depends on SOC_MKW41Z4 && SOC_SERIES_KINETIS_KWX

At <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.mkw40z4:45

Included via Kconfig:8 → Kconfig.zephyr:27 → <Zephyr SoC>/arm/nxp_kinetis/Kconfig.defconfig:7 → <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.series:11

Menu path: (Top)

choice CSPRNG_GENERATOR_CHOICE
    bool
    default CTR_DRBG_CSPRNG_GENERATOR
    depends on SOC_MKW40Z4 && SOC_SERIES_KINETIS_KWX

At <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.mkw41z4:72

Included via Kconfig:8 → Kconfig.zephyr:27 → <Zephyr SoC>/arm/nxp_kinetis/Kconfig.defconfig:7 → <Zephyr SoC>/arm/nxp_kinetis/kwx/Kconfig.defconfig.series:11

Menu path: (Top)

choice CSPRNG_GENERATOR_CHOICE
    bool
    default CTR_DRBG_CSPRNG_GENERATOR
    depends on SOC_MKW41Z4 && SOC_SERIES_KINETIS_KWX

At <Zephyr Driver>/entropy/Kconfig.mcux:42

Included via Kconfig:8 → Kconfig.zephyr:42 → <Zephyr Driver>/Kconfig:32 → <Zephyr Driver>/entropy/Kconfig:15

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

choice CSPRNG_GENERATOR_CHOICE
    bool
    default CTR_DRBG_CSPRNG_GENERATOR if ENTROPY_MCUX_TRNG
    depends on ENTROPY_GENERATOR

At <Zephyr Subsystem>/random/Kconfig:72

Included via Kconfig:8 → Kconfig.zephyr:44 → <Zephyr Subsystem>/Kconfig:53

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

choice CSPRNG_GENERATOR_CHOICE
    bool "Cryptographically secure random generator"
    default HARDWARE_DEVICE_CS_GENERATOR
    help
      Platform dependent cryptographically secure random number support.

      If the hardware entropy support of the platform has sufficient
      performance to support CSRNG then select that. Otherwise, select
      CTR-DRBG CSPRNG as that is a FIPS140-2 recommmended CSPRNG.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)