Help¶

Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher.
This also includes CCM*
MBEDTLS_CCM_C setting in mbed TLS config file.

Direct dependencies¶

TFM_MINIMAL || (MBEDTLS_AES_C && NRF_SECURITY_ANY_BACKEND && NORDIC_SECURITY_BACKEND)

(Includes any dependencies from ifs and menus.)

Defaults¶

n
y

Symbols selected by this symbol¶

Symbols that select this symbol¶

Kconfig definitions¶

At <nRF>/modules/trusted-firmware-m/Kconfig.mbedtls_minimal.defconfig:36

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:23 → <Zephyr>/modules/Kconfig:6 → <BuildDir>/kconfig/Kconfig.modules:14 → <nRF>/modules/trusted-firmware-m/Kconfig:39

Menu path: (Top) → Modules → trusted-firmware-m (/home/runner/work/sdk-nrf/sdk-nrf/ncs/modules/tee/tfm)

config MBEDTLS_CCM_C
    bool
    default n
    depends on TFM_MINIMAL

At <nrfxlib>/nrf_security/Kconfig:662

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:23 → <Zephyr>/modules/Kconfig:6 → <BuildDir>/kconfig/Kconfig.modules:62 → <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 → AEAD - Authenticated Encryption with Associated Data

menuconfig MBEDTLS_CCM_C
    bool "AES-CCM - AES Counter with CBC-MAC mode"
    default y
    select CC3XX_MBEDTLS_CCM_C if CC3XX_SINGLE_BACKEND
    select OBERON_MBEDTLS_CCM_C if OBERON_SINGLE_BACKEND
    select VANILLA_MBEDTLS_CCM_C if MBEDTLS_VANILLA_SINGLE_BACKEND
    depends on MBEDTLS_AES_C && NRF_SECURITY_ANY_BACKEND && NORDIC_SECURITY_BACKEND
    help
      Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher.
      This also includes CCM*
      MBEDTLS_CCM_C setting in mbed TLS config file.

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