Building project that uses mbedTLS backend (AES & AEAD) with nRF5-cmake-scripts CMake scripts

[kcl74]

If you clone nRF5-cmake-scripts, then switch it to the archive/sdk-16 it builds if you follow the build instructions.

What I'm wanting to do is adding the mbedTLS backend so it is also built.  

I know I have to use a combination of:

nRF5_addMBED

nRF5_includeMBEDTLS

nRF5_addCryptoBackend

That is defined in libraries.cmake however I'm not sure how to use them in my CMakeLists.txt file.  Since I want to use both AES and AEAD, I should be using:

nRF5_addCryptoBackend(aes mbedtls)

nRF5_addCryptoBackend(aead mbedtls)

However when I build I get:

C:/my_project/toolchains/nRF5/nRF5_SDK_16.0.0_98a08e2/components/libraries/crypto/backend/mbedtls/mbedtls_backend_init.c:51:10: fatal error: mbedtls/platform.h: No such file or directory
#include "mbedtls/platform.h"
^~~~~~~~~~~~~~~~~~~~
compilation terminated.

That would mean the include directories and source for the mbedTLS library is not included.  This would also mean I need to define my own "nrf_crypto_mbedtls_config.h" somewhere.

How can I build my project, including the mbedTLS backend?  Any help is greatly appreciated.

[Einar Thorsrud]

Hi,

The nRF5-cmake-scripts is not provided by Nordic and we do not have experience with it. Hopefully someone on this forum can chip in. If not, perhaps it is worth asking by making an issue on GitHub?