mirror of https://github.com/wolfSSL/wolfBoot.git
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/* hal_trng_psa.c
|
|
*
|
|
* PSA-backed entropy for bare-metal test-app.
|
|
* Copyright (C) 2026 wolfSSL Inc.
|
|
*
|
|
* This file is part of wolfBoot.
|
|
*
|
|
* wolfBoot is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* wolfBoot is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include "psa/crypto.h"
|
|
|
|
int hal_trng_get_entropy(unsigned char *out, unsigned len)
|
|
{
|
|
psa_status_t status;
|
|
|
|
if (out == NULL || len == 0) {
|
|
return -1;
|
|
}
|
|
|
|
status = psa_generate_random(out, len);
|
|
return (status == PSA_SUCCESS) ? 0 : -1;
|
|
}
|