0ef1717155
Some checks failed
Basic Checks / license-check (push) Has been cancelled
Basic Checks / include-check (push) Has been cancelled
Basic Checks / style-check (push) Has been cancelled
Basic Checks / docs-check (push) Has been cancelled
Basic Checks / python-tests (push) Has been cancelled
Basic Checks / pin-validation (push) Has been cancelled
Basic Checks / cmake-checks (push) Has been cancelled
Basic Checks / frozen-tools-check (push) Has been cancelled
Publish or Update docker image for head of branch / prepare-tags (push) Has been cancelled
Release or update docker image for a released mbed-os version / prepare-tags (push) Has been cancelled
Publish or Update docker image for head of branch / build-container (push) Has been cancelled
Publish or Update docker image for head of branch / test-container (linux/amd64) (push) Has been cancelled
Publish or Update docker image for head of branch / test-container (linux/arm64) (push) Has been cancelled
Publish or Update docker image for head of branch / deploy-container (push) Has been cancelled
Release or update docker image for a released mbed-os version / build-container (push) Has been cancelled
Release or update docker image for a released mbed-os version / test-container (linux/amd64) (push) Has been cancelled
Release or update docker image for a released mbed-os version / test-container (linux/arm64) (push) Has been cancelled
Release or update docker image for a released mbed-os version / deploy-container (push) Has been cancelled
Prune temporary docker images / prune-images (push) Has been cancelled
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
|
|
* Copyright (c) 2017-2019 ARM Limited
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*
|
|
* 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 "trng_api.h"
|
|
#include "device.h"
|
|
#include <stdlib.h>
|
|
|
|
/** NOTE: FastModel are software models not contain any TRNG peripheral
|
|
* So C library srand() and rand() are used to simulate TRNG device
|
|
*/
|
|
|
|
void trng_init(trng_t *obj)
|
|
{
|
|
srand(0);
|
|
(void)obj;
|
|
}
|
|
|
|
|
|
void trng_free(trng_t *obj)
|
|
{
|
|
(void)obj;
|
|
}
|
|
|
|
/** Get random data from TRNG peripheral
|
|
*
|
|
* @param obj The TRNG object
|
|
* @param output The pointer to an output array
|
|
* @param length The size of output data, to avoid buffer overwrite
|
|
* @param output_length The length of generated data
|
|
* @return 0 success, -1 fail
|
|
*/
|
|
int trng_get_bytes(trng_t *obj, uint8_t *output, size_t length, size_t *output_length)
|
|
{
|
|
(void)obj;
|
|
|
|
for (int i = 0; i < length; ++i) {
|
|
output[i] = rand() % 256;
|
|
}
|
|
*output_length = length;
|
|
|
|
return 0;
|
|
}
|