1 /*
2 * Copyright 2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 <openssl/evp.h>
11 #include <openssl/rand.h>
12 #include <openssl/bio.h>
13 #include <openssl/core_names.h>
14 #include "testutil.h"
15
test_rand(void)16 static int test_rand(void)
17 {
18 EVP_RAND_CTX *privctx;
19 OSSL_PARAM params[2], *p = params;
20 unsigned char entropy1[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 };
21 unsigned char entropy2[] = { 0xff, 0xfe, 0xfd };
22 unsigned char nonce[] = { 0x00, 0x01, 0x02, 0x03, 0x04 };
23 unsigned char outbuf[3];
24
25 *p++ = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
26 entropy1, sizeof(entropy1));
27 *p = OSSL_PARAM_construct_end();
28
29 if (!TEST_ptr(privctx = RAND_get0_private(NULL))
30 || !TEST_true(EVP_RAND_CTX_set_params(privctx, params))
31 || !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
32 || !TEST_mem_eq(outbuf, sizeof(outbuf), entropy1, sizeof(outbuf))
33 || !TEST_int_le(RAND_priv_bytes(outbuf, sizeof(outbuf) + 1), 0)
34 || !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
35 || !TEST_mem_eq(outbuf, sizeof(outbuf),
36 entropy1 + sizeof(outbuf), sizeof(outbuf)))
37 return 0;
38
39 *params = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
40 entropy2, sizeof(entropy2));
41 if (!TEST_true(EVP_RAND_CTX_set_params(privctx, params))
42 || !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
43 || !TEST_mem_eq(outbuf, sizeof(outbuf), entropy2, sizeof(outbuf)))
44 return 0;
45
46 *params = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_NONCE,
47 nonce, sizeof(nonce));
48 if (!TEST_true(EVP_RAND_CTX_set_params(privctx, params))
49 || !TEST_true(EVP_RAND_nonce(privctx, outbuf, sizeof(outbuf)))
50 || !TEST_mem_eq(outbuf, sizeof(outbuf), nonce, sizeof(outbuf)))
51 return 0;
52
53 return 1;
54 }
55
setup_tests(void)56 int setup_tests(void)
57 {
58 if (!TEST_true(RAND_set_DRBG_type(NULL, "TEST-RAND", NULL, NULL, NULL)))
59 return 0;
60 ADD_TEST(test_rand);
61 return 1;
62 }
63