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1 | /* |
2 | * Copyright 2020 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the OpenSSL license (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | #include <string.h> | |
11 | #include "internal/nelem.h" | |
12 | #include <openssl/crypto.h> | |
13 | #include <openssl/err.h> | |
14 | #include <openssl/rand.h> | |
15 | #include <openssl/obj_mac.h> | |
16 | #include <openssl/evp.h> | |
17 | #include <openssl/aes.h> | |
18 | #include "../crypto/rand/rand_local.h" | |
19 | ||
20 | #include "testutil.h" | |
21 | #include "drbg_extra_test.h" | |
22 | ||
23 | static unsigned char zerobuff[32]; | |
24 | ||
25 | static size_t kat_entropy(RAND_DRBG *drbg, unsigned char **pout, | |
26 | int entropy, size_t min_len, size_t max_len, | |
27 | int prediction_resistance) | |
28 | { | |
29 | *pout = zerobuff; | |
30 | return sizeof(zerobuff); | |
31 | } | |
32 | ||
33 | static size_t kat_nonce(RAND_DRBG *drbg, unsigned char **pout, | |
34 | int entropy, size_t min_len, size_t max_len) | |
35 | { | |
36 | *pout = zerobuff; | |
37 | return sizeof(zerobuff); | |
38 | } | |
39 | ||
40 | static int run_extra_kat(const struct drbg_extra_kat *td) | |
41 | { | |
42 | unsigned long long i; | |
43 | RAND_DRBG *drbg = NULL; | |
44 | unsigned char buff[BUFFSIZE]; | |
45 | unsigned int flags = 0; | |
46 | int failures = 0; | |
47 | ||
48 | if (!TEST_ptr(drbg = RAND_DRBG_new(td->nid, flags, NULL))) | |
49 | return 0; | |
50 | ||
51 | /* Set deterministic entropy callback. */ | |
52 | if (!TEST_true(RAND_DRBG_set_callbacks(drbg, kat_entropy, NULL, | |
53 | kat_nonce, NULL))) { | |
54 | failures++; | |
55 | goto err; | |
56 | } | |
57 | ||
58 | /* Set fixed reseed intervall. */ | |
59 | if (!TEST_true(RAND_DRBG_set_reseed_interval(drbg, RESEEDINTERVAL))) { | |
60 | failures++; | |
61 | goto err; | |
62 | } | |
63 | ||
64 | if (!TEST_true(RAND_DRBG_instantiate(drbg, NULL, 0))) | |
65 | failures++; | |
66 | ||
67 | for (i = 0; i < td->ngen; i++) { | |
68 | if(!TEST_true(RAND_DRBG_generate(drbg, buff, sizeof(buff), 0, NULL, | |
69 | 0))) | |
70 | failures++; | |
71 | } | |
72 | ||
73 | if (!TEST_true(RAND_DRBG_uninstantiate(drbg)) | |
74 | || !TEST_mem_eq(td->expected, sizeof(buff), buff, sizeof(buff))) | |
75 | failures++; | |
76 | ||
77 | err: | |
78 | if (drbg != NULL) { | |
79 | RAND_DRBG_uninstantiate(drbg); | |
80 | RAND_DRBG_free(drbg); | |
81 | } | |
82 | return failures == 0; | |
83 | } | |
84 | ||
85 | static int test_extra_kats(int i) | |
86 | { | |
87 | return run_extra_kat(drbg_extra_test[i]); | |
88 | } | |
89 | ||
90 | int setup_tests(void) | |
91 | { | |
92 | ADD_ALL_TESTS(test_extra_kats, OSSL_NELEM(drbg_extra_test)); | |
93 | return 1; | |
94 | } |