:orphan:

.. title:: MBEDTLS_CCM_C

.. option:: CONFIG_MBEDTLS_CCM_C

*AES-CCM - AES Counter with CBC-MAC mode*

Type: ``bool``

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
===================

\ :option:`MBEDTLS_AES_C <CONFIG_MBEDTLS_AES_C>` && !\ :option:`NRF_CRYPTO_BACKEND_COMBINATION_0 <CONFIG_NRF_CRYPTO_BACKEND_COMBINATION_0>` && \ :option:`AEAD_CONFIGURATION <CONFIG_AEAD_CONFIGURATION>` && \ :option:`NORDIC_SECURITY_BACKEND <CONFIG_NORDIC_SECURITY_BACKEND>`

*(Includes any dependencies from if's and menus.)*

Defaults
========

- "y" if \ :option:`MBEDTLS_AES_C <CONFIG_MBEDTLS_AES_C>` && !\ :option:`NRF_CRYPTO_BACKEND_COMBINATION_0 <CONFIG_NRF_CRYPTO_BACKEND_COMBINATION_0>` && \ :option:`AEAD_CONFIGURATION <CONFIG_AEAD_CONFIGURATION>` && \ :option:`NORDIC_SECURITY_BACKEND <CONFIG_NORDIC_SECURITY_BACKEND>`

Symbols selected by this symbol
===============================

- \ :option:`MBEDTLS_CIPHER_AES_256_CCM_C <CONFIG_MBEDTLS_CIPHER_AES_256_CCM_C>` if \ :option:`MBEDTLS_VANILLA_BACKEND <CONFIG_MBEDTLS_VANILLA_BACKEND>` && \ :option:`MBEDTLS_AES_C <CONFIG_MBEDTLS_AES_C>` && !\ :option:`NRF_CRYPTO_BACKEND_COMBINATION_0 <CONFIG_NRF_CRYPTO_BACKEND_COMBINATION_0>` && \ :option:`AEAD_CONFIGURATION <CONFIG_AEAD_CONFIGURATION>` && \ :option:`NORDIC_SECURITY_BACKEND <CONFIG_NORDIC_SECURITY_BACKEND>`

Kconfig definition
==================

.. highlight:: kconfig

At ``../nrfxlib/nrf_security/Kconfig:248``

Included via ``Kconfig:10`` → ``Kconfig.zephyr:10`` → ``/jenkins_workspace/workspace/connect-nrf_documentation_master/_build/Kconfig.modules:7`` → ``/jenkins_workspace/workspace/connect-nrf_documentation_master/ncs/nrfxlib/Kconfig.nrfxlib:13``

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

.. parsed-literal::

    config MBEDTLS_CCM_C
    	bool
    	prompt "AES-CCM - AES Counter with CBC-MAC mode" if \ :option:`MBEDTLS_AES_C <CONFIG_MBEDTLS_AES_C>` && !\ :option:`NRF_CRYPTO_BACKEND_COMBINATION_0 <CONFIG_NRF_CRYPTO_BACKEND_COMBINATION_0>` && \ :option:`AEAD_CONFIGURATION <CONFIG_AEAD_CONFIGURATION>` && \ :option:`NORDIC_SECURITY_BACKEND <CONFIG_NORDIC_SECURITY_BACKEND>`
    	default "y" if \ :option:`MBEDTLS_AES_C <CONFIG_MBEDTLS_AES_C>` && !\ :option:`NRF_CRYPTO_BACKEND_COMBINATION_0 <CONFIG_NRF_CRYPTO_BACKEND_COMBINATION_0>` && \ :option:`AEAD_CONFIGURATION <CONFIG_AEAD_CONFIGURATION>` && \ :option:`NORDIC_SECURITY_BACKEND <CONFIG_NORDIC_SECURITY_BACKEND>`
    	select \ :option:`MBEDTLS_CIPHER_AES_256_CCM_C <CONFIG_MBEDTLS_CIPHER_AES_256_CCM_C>` if \ :option:`MBEDTLS_VANILLA_BACKEND <CONFIG_MBEDTLS_VANILLA_BACKEND>` && \ :option:`MBEDTLS_AES_C <CONFIG_MBEDTLS_AES_C>` && !\ :option:`NRF_CRYPTO_BACKEND_COMBINATION_0 <CONFIG_NRF_CRYPTO_BACKEND_COMBINATION_0>` && \ :option:`AEAD_CONFIGURATION <CONFIG_AEAD_CONFIGURATION>` && \ :option:`NORDIC_SECURITY_BACKEND <CONFIG_NORDIC_SECURITY_BACKEND>`
    	depends on \ :option:`MBEDTLS_AES_C <CONFIG_MBEDTLS_AES_C>` && !\ :option:`NRF_CRYPTO_BACKEND_COMBINATION_0 <CONFIG_NRF_CRYPTO_BACKEND_COMBINATION_0>` && \ :option:`AEAD_CONFIGURATION <CONFIG_AEAD_CONFIGURATION>` && \ :option:`NORDIC_SECURITY_BACKEND <CONFIG_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.

*(Definitions include propagated dependencies, including from if's and menus.)*