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¶

MBEDTLS_AES_C && !NRF_CRYPTO_BACKEND_COMBINATION_0 && (CC310_BACKEND || MBEDTLS_VANILLA_BACKEND) && NORDIC_SECURITY_BACKEND

(Includes any dependencies from ifs and menus.)

Default¶

y

Symbols selected by this symbol¶

MBEDTLS_CIPHER_AES_256_CCM_C if MBEDTLS_VANILLA_BACKEND

Kconfig definition¶

At nrf_security/Kconfig:370

Included via /jenkins_workspace/workspace/nrfconnect-nrf_doc_v1.2-branch_2/nrfxlib/Kconfig.nrfxlib:14

Menu path: (Top) → Nordic nrfxlib → Nordic Security → Use Nordic provided security backend → AEAD - Authenticated Encryption with Associated Data

config MBEDTLS_CCM_C
    bool "AES-CCM - AES Counter with CBC-MAC mode"
    default y
    select MBEDTLS_CIPHER_AES_256_CCM_C if MBEDTLS_VANILLA_BACKEND
    depends on MBEDTLS_AES_C && !NRF_CRYPTO_BACKEND_COMBINATION_0 && (CC310_BACKEND || MBEDTLS_VANILLA_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.)