S32K3 HSE RSA import KEY for Sig verification

[Mingming]

hi,

I'm currently using the S32k3 Crypto Mcal to integrate SW for RSA2048 Sig verification, but the MCAL driver limitation cannot set the RSA key by keyElementSet API, so if there is any demo that can guide to configure it.

MCAL version: SW32K3_RTD_4.4_2.0.3

thanks a lot!

#S32k3

[lukaszadrapa · Accepted solution]

Hi @Mingming 

Yes, that's correct. The MCAL driver does not support import of RSA keys.
An option is to call such HSE service via Crypto_43_HSE_KeyElementGet() function. See please section "ASR Extension services offered through 'Crypto_43_HSE_KeyElementGet' API" in the RTD_CRYPTO_43_HSE_UM.pdf.
This functionality provides an option to call any HSE service using MCAL function.

I found attached example where RSA keys are imported. This should help to understand how to set HSE descriptor.

Regards,
Lukas

[Mingming]

hi @lukaszadrapa ,

thanks a lot for your answer,

BR!

Mingming