1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
/* wolfssl_netos_custom.c
*
* Copyright (C) 2006-2025 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL 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.
*
* wolfSSL 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 <stdio.h>
#include <stdarg.h>
#include <tx_api.h>
#include <entropy.h>
#include <wolfssl/wolfcrypt/settings.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <wolfssl/wolfcrypt/fips_test.h>
int dc_log_printf(char* format, ...);
#if BSP_SIGMA == 0
int dc_log_printf(char* format, ...)
{
va_list args;
va_start(args, (format));
fflush(stdout);
vprintf(format, args);
fflush(stdout);
va_end(args);
return 0;
}
#endif
unsigned char get_byte_from_pool(void)
{
unsigned char out;
float density;
/* Wait until pool has at least one byte */
/* TODO: improve this */
while (ent_get_byte_count() == 0)
tx_thread_sleep(1);
/* Stop gathering entropy to avoid race conditions */
ent_set_status(0);
/* Pop a single byte from the pool and continue gathering entropy */
ent_pop(&out, &density);
ent_set_status(1);
return out;
}
int my_rng_generate_seed(unsigned char* output, int sz)
{
int i;
srand(get_byte_from_pool());
for (i = 0; i < sz; i++) {
output[i] = (unsigned char) rand();
srand(get_byte_from_pool());
}
return 0;
}
static void appFipsCb(int ok, int err, const char* hash)
{
dc_log_printf("in appFipsCb Fips callback, ok = %d, err = %d\n", ok, err);
dc_log_printf("message = %s\n", wc_GetErrorString(err));
dc_log_printf("hash = %s\n", hash);
if (err == IN_CORE_FIPS_E) {
dc_log_printf("In core integrity hash check failure, copy above hash\n");
dc_log_printf("into verifyCore[] in fips_test.c and rebuild\n");
}
}
void setAppFipsCb(void)
{
wolfCrypt_SetCb_fips(appFipsCb);
}
|
