1 /* Copyright (c) 2023, Google Inc.
2 *
3 * Permission to use, copy, modify, and/or distribute this software for any
4 * purpose with or without fee is hereby granted, provided that the above
5 * copyright notice and this permission notice appear in all copies.
6 *
7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
14
15 #include <openssl/rand.h>
16
17 #include "../fipsmodule/rand/internal.h"
18
19 #if defined(OPENSSL_RAND_TRUSTY)
20 #include <stdint.h>
21 #include <stdlib.h>
22
23 #include <sys/types.h>
24 #include <uapi/err.h>
25
26 #include <lib/rng/trusty_rng.h>
27
CRYPTO_sysrand(uint8_t * out,size_t requested)28 void CRYPTO_sysrand(uint8_t *out, size_t requested) {
29 if (trusty_rng_hw_rand(out, requested) != NO_ERROR) {
30 abort();
31 }
32 }
33
CRYPTO_sysrand_for_seed(uint8_t * out,size_t requested)34 void CRYPTO_sysrand_for_seed(uint8_t *out, size_t requested) {
35 CRYPTO_sysrand(out, requested);
36 }
37
38 #endif // OPENSSL_RAND_TRUSTY
39