mbed-os/features/mbedtls/mbed_rng.c

30 lines
963 B
C

/* mbed Microcontroller Library
* Copyright (c) 2016 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "hal/rng_api.h"
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT) && defined(DEVICE_RNG)
int mbedtls_hardware_poll( void *data, unsigned char *output, size_t len, size_t *olen ) {
rng_t rng_obj;
rng_init(&rng_obj);
int ret = rng_get_bytes(&rng_obj, output, len, olen);
rng_free(&rng_obj);
return ret;
}
#endif