SA_SILIB_RET_EINVAL_HW_SIGNATURE error on using SaSi_LibInit() SDK 14.1

[h.vig]

Hi,

I am using nrf52840 to verify a signature using RSA and cryptocell c310.

I get error 0x07 when I try SaSi_LibInit();

My rndContext and the buffer are both declared as static variables and lie in the data segment of the RAM. I use -DNRF_CRYPTO_BACKEND_CC310_LIB=1 as a compile flag.

Seems like there is something small that I am missing. But I can not find out by myself. Why do I get a invalid_hw_signature_error? What actually happens during the initialization?

Thanks

Hari

[h.vig]

Failed to use NRF_CRYPTOCELL->ENABLE=1

Works now