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