| # mcux entropy generator driver configuration |
| |
| # Copyright (c) 2016 ARM Ltd. |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config ENTROPY_MCUX_RNGA |
| bool "MCUX RNGA driver" |
| default y |
| depends on DT_HAS_NXP_KINETIS_RNGA_ENABLED |
| select ENTROPY_HAS_DRIVER |
| help |
| This option enables the random number generator accelerator (RNGA) |
| driver based on the MCUX RNGA driver. |
| |
| config ENTROPY_MCUX_TRNG |
| bool "MCUX TRNG driver" |
| default y |
| depends on DT_HAS_NXP_KINETIS_TRNG_ENABLED |
| select ENTROPY_HAS_DRIVER |
| help |
| This option enables the true random number generator (TRNG) |
| driver based on the MCUX TRNG driver. |
| |
| config ENTROPY_MCUX_RNG |
| bool "MCUX RNG driver" |
| default y |
| depends on DT_HAS_NXP_LPC_RNG_ENABLED |
| select ENTROPY_HAS_DRIVER |
| help |
| This option enables the true random number generator (TRNG) |
| driver based on the MCUX RNG driver on LPC Family. |
| |
| config ENTROPY_MCUX_CAAM |
| bool "MCUX CAAM driver" |
| default y |
| depends on DT_HAS_NXP_IMX_CAAM_ENABLED |
| select ENTROPY_HAS_DRIVER |
| select NOCACHE_MEMORY if ARCH_HAS_NOCACHE_MEMORY_SUPPORT |
| help |
| This option enables the CAAM driver based on the MCUX |
| CAAM driver. |
| |
| config ENTROPY_MCUX_CSS |
| bool "MCUX CSS RNG driver" |
| default y |
| depends on DT_HAS_NXP_CSS_V2_ENABLED |
| select ENTROPY_HAS_DRIVER |
| help |
| This option enables the driver for random number generation using |
| the CSS (Crypto Subsystem). |
| # |
| # Don't use use the MCUX TRNG as a random source as it is not designed |
| # to supply a continuous random stream. Instead, it is used to provide |
| # a seed to RNG generator. |
| # |
| # Use the software implemented xoroshiro RNG. |
| # Use CSPRNG for cryptographically secure RNG source. |
| # |
| choice RNG_GENERATOR_CHOICE |
| default XOSHIRO_RANDOM_GENERATOR if ENTROPY_MCUX_TRNG |
| endchoice |
| |
| choice CSPRNG_GENERATOR_CHOICE |
| default CTR_DRBG_CSPRNG_GENERATOR if ENTROPY_MCUX_TRNG |
| endchoice |
| |
| if ENTROPY_MCUX_CAAM |
| |
| config ENTRY_MCUX_CAAM_POOL_SIZE |
| int "CAAM random number pool size" |
| range 4 1024 |
| default 256 |
| help |
| Buffer length in bytes used to store random bytes generated by |
| CAAM hardware. Please note, that size of the pool must be a |
| power of 2. |
| |
| endif # ENTROPY_MCUX_CAAM |
