Help¶

Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher using AES-128, AES-192, AES-256. This also includes CCM* (star) mode MBEDTLS_CCM_C setting in mbed TLS config file.

Direct dependencies¶

(MBEDTLS_CCM_C && NRF_SECURITY_ANY_BACKEND && NORDIC_SECURITY_BACKEND) || (OBERON_MBEDTLS_AES_C && NRF_SECURITY_MULTI_BACKEND && MBEDTLS_CCM_C && NRF_SECURITY_ANY_BACKEND && NORDIC_SECURITY_BACKEND)

(Includes any dependencies from ifs and menus.)

Default¶

y

Symbols that select this symbol¶

MBEDTLS_CCM_C

Kconfig definitions¶

At <nrfxlib>/nrf_security/Kconfig:655

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:9 → <BuildDir>/Kconfig/Kconfig.modules:5 → <nrfxlib>/Kconfig.nrfxlib:13

Menu path: (Top) → Modules → Nordic nrfxlib → Nordic Security → Use Nordic provided security backend → AEAD - Authenticated Encryption with Associated Data → AES-CCM - AES Counter with CBC-MAC mode

config OBERON_MBEDTLS_CCM_C
    bool
    depends on MBEDTLS_CCM_C && NRF_SECURITY_ANY_BACKEND && NORDIC_SECURITY_BACKEND

At <nrfxlib>/nrf_security/Kconfig:706

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:9 → <BuildDir>/Kconfig/Kconfig.modules:5 → <nrfxlib>/Kconfig.nrfxlib:13

Menu path: (Top) → Modules → Nordic nrfxlib → Nordic Security → Use Nordic provided security backend → AEAD - Authenticated Encryption with Associated Data → AES-CCM - AES Counter with CBC-MAC mode

config OBERON_MBEDTLS_CCM_C
    bool "nrf_oberon (Using AES-128, AES-192, AES-256)"
    default y
    depends on OBERON_MBEDTLS_AES_C && NRF_SECURITY_MULTI_BACKEND && MBEDTLS_CCM_C && NRF_SECURITY_ANY_BACKEND && NORDIC_SECURITY_BACKEND
    help
      Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher
      using AES-128, AES-192, AES-256. This also includes CCM* (star) mode
      MBEDTLS_CCM_C setting in mbed TLS config file.

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