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CONFIG_MBEDTLS_MPI_MAX_SIZE
¶
MPI - Multiple Precision Integers maximum size
Type: int
Help¶
Maximum number of bytes for usable Multiple Precision Integers (MPI) / Bignum. This will reduce the size of MPIs that can be used for calculation. Only reduce this value if it is ensured that the system won’t need larger numbers. MBEDTLS_MPI_MAX_SIZE setting in mbed TLS config file.
Direct dependencies¶
(CC3XX_BACKEND
|| VANILLA_MBEDTLS_AES_C
) && NRF_SECURITY_ADVANCED
&& NRF_SECURITY_ANY_BACKEND
&& NORDIC_SECURITY_BACKEND
(Includes any dependencies from ifs and menus.)
Default¶
1024
Kconfig definition¶
At <nrfxlib>/nrf_security/Kconfig:1488
Included via <Zephyr>/Kconfig:8
→ <Zephyr>/Kconfig.zephyr:23
→ <Zephyr>/modules/Kconfig:6
→ <BuildDir>/Kconfig/Kconfig.modules:14
→ <nrfxlib>/Kconfig.nrfxlib:13
Menu path: (Top) → Modules → nrfxlib (/home/runner/work/sdk-nrf/sdk-nrf/ncs/nrfxlib) → Nordic nrfxlib → Nordic Security → Use Nordic provided security backend → Advanced mbed TLS Configuration Settings
config MBEDTLS_MPI_MAX_SIZE int "MPI - Multiple Precision Integers maximum size" range 0 1024 default 1024 depends on (CC3XX_BACKEND
||VANILLA_MBEDTLS_AES_C
) &&NRF_SECURITY_ADVANCED
&&NRF_SECURITY_ANY_BACKEND
&&NORDIC_SECURITY_BACKEND
help Maximum number of bytes for usable Multiple Precision Integers (MPI) / Bignum. This will reduce the size of MPIs that can be used for calculation. Only reduce this value if it is ensured that the system won't need larger numbers. MBEDTLS_MPI_MAX_SIZE setting in mbed TLS config file.
(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)