mbedtls_psa_rng.c

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#include <stddef.h>
#include <stdint.h>
 
#include "ra8_check.h"
#include "ra8_err.h"
#include "ra8_rsip.h"
 
#ifndef RA8_OFF_TARGET
#include "psa/crypto.h"

psa_status_t mbedtls_psa_external_get_random(mbedtls_psa_external_random_context_t* context,
                                             uint8_t*                               output,
                                             size_t                                 output_size,
                                             size_t*                                output_length)
{
  (void)context;
  RA8_CHECK_NULL_PTR_RETURN(output,
                            PSA_ERROR_INVALID_ARGUMENT,
                            "PSA_RNG",
                            "output must not be nullptr");
  RA8_CHECK_NULL_PTR_RETURN(output_length,
                            PSA_ERROR_INVALID_ARGUMENT,
                            "PSA_RNG",
                            "output_length must not be nullptr");
  ra8_err_t err = ra8_rsip_trng_read((uint8_t*)output, (uint32_t)output_size);
  if (err != k_ra8_ok) {
    return PSA_ERROR_HARDWARE_FAILURE;
  }
  *output_length = output_size;
  return PSA_SUCCESS;
}
#endif