mbedtls PBKDF2: Activating function in prj.conf is not possible

[ProfNocturne]

Hello,

I want to use the function mbedtls_pkcs5_pbkdf2_hmac which can be found in mbedtls\library\pkc5s.c.

There is a compiler switch named  MBEDTLS_PKCS5_C which activates this function.

I thougt if I set the following configurations in prj.conf the function would be available for compiling my code. But it is not:

CONFIG_MBEDTLS=y
CONFIG_MBEDTLS_PKCS5_C=y
CONFIG_MBEDTLS_ENABLE_HEAP=y
CONFIG_MBEDTLS_HEAP_SIZE=8192

If I uncomment MBEDTLS_PKCS5_C in file pkc5s.c it is working as intended.

Should this be activated in another way? There is also a config-file called: nrf-config-user.h Should I use this instead? If yes, how?

I am using nrf connect v2.0.0.

Regards

Jan

[Sigurd Hellesvik]

Try this, is it what you need?

mbedtls_pkcs5_pbkdf2_hmac_ext_test.zip

[ProfNocturne]

Sorry for the delayed answer.

Your example works. All I need is to add CONFIG_NORDIC_SECURITY_BACKEND=y in prj.conf.

Thank your for your help!