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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
2416f73b ZJS |
2 | |
3 | #include "hexdecoct.h" | |
4 | #include "random-util.h" | |
5 | #include "log.h" | |
6 | ||
7 | static void test_acquire_random_bytes(bool high_quality_required) { | |
8 | uint8_t buf[16] = {}; | |
9 | unsigned i; | |
10 | ||
11 | log_info("/* %s */", __func__); | |
12 | ||
13 | for (i = 1; i < sizeof buf; i++) { | |
14 | assert_se(acquire_random_bytes(buf, i, high_quality_required) == 0); | |
15 | if (i + 1 < sizeof buf) | |
16 | assert_se(buf[i] == 0); | |
17 | ||
18 | hexdump(stdout, buf, i); | |
19 | } | |
20 | } | |
21 | ||
22 | static void test_pseudorandom_bytes(void) { | |
23 | uint8_t buf[16] = {}; | |
24 | unsigned i; | |
25 | ||
26 | log_info("/* %s */", __func__); | |
27 | ||
28 | for (i = 1; i < sizeof buf; i++) { | |
29 | pseudorandom_bytes(buf, i); | |
30 | if (i + 1 < sizeof buf) | |
31 | assert_se(buf[i] == 0); | |
32 | ||
33 | hexdump(stdout, buf, i); | |
34 | } | |
35 | } | |
36 | ||
97fa202a LP |
37 | static void test_rdrand64(void) { |
38 | int r, i; | |
39 | ||
40 | for (i = 0; i < 10; i++) { | |
41 | uint64_t x = 0; | |
42 | ||
43 | r = rdrand64(&x); | |
44 | if (r < 0) { | |
45 | log_error_errno(r, "RDRAND failed: %m"); | |
46 | return; | |
47 | } | |
48 | ||
49 | printf("%" PRIx64 "\n", x); | |
50 | } | |
51 | } | |
52 | ||
2416f73b ZJS |
53 | int main(int argc, char **argv) { |
54 | log_set_max_level(LOG_DEBUG); | |
55 | log_parse_environment(); | |
56 | log_open(); | |
57 | ||
58 | test_acquire_random_bytes(false); | |
59 | test_acquire_random_bytes(true); | |
60 | ||
61 | test_pseudorandom_bytes(); | |
62 | ||
97fa202a LP |
63 | test_rdrand64(); |
64 | ||
2416f73b ZJS |
65 | return 0; |
66 | } |