How to format a PSA generated key to PEM?

Question

Hi, 
 I want to upload the generated key to the modem, which needs PEM. 
 I know that PSA uses Mbed TLS and know that there is a 
 mbedtls_pk_write_key_pem 
 function to get the PEM format. 
 The problem that it needs mbedtls_pk_context* as identifier. 
 
 How can I get mbedtls_pk_context from the by PSA used psa_key_handle_t ? 
 
 With kind regards, 
 Árpád

user7377 · Accepted Answer

Hi Árpád, 
 You can obtain the raw key using psa_export_public_key(), but we do not support conversion to PEM in the nRF Connect SDK, and adding support for it is not trivial. We may look into this for a future release. That said, generating a PEM key from a public key is of course possible, but I do not have any method to share about how to do it in the current SDK release. 
 Einar

How to format a PSA generated key to PEM?

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