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 outbuf[3];
23
24 *p++ = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
25 entropy1, sizeof(entropy1));
26 *p = OSSL_PARAM_construct_end();
27
28 if (!TEST_ptr(privctx = RAND_get0_private(NULL))
29 || !TEST_true(EVP_RAND_CTX_set_params(privctx, params))
30 || !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
31 || !TEST_mem_eq(outbuf, sizeof(outbuf), entropy1, sizeof(outbuf))
32 || !TEST_int_le(RAND_priv_bytes(outbuf, sizeof(outbuf) + 1), 0)
33 || !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
34 || !TEST_mem_eq(outbuf, sizeof(outbuf),
35 entropy1 + sizeof(outbuf), sizeof(outbuf)))
36 return 0;
37
38 *params = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_ENTROPY,
39 entropy2, sizeof(entropy2));
40 if (!TEST_true(EVP_RAND_CTX_set_params(privctx, params))
41 || !TEST_int_gt(RAND_priv_bytes(outbuf, sizeof(outbuf)), 0)
42 || !TEST_mem_eq(outbuf, sizeof(outbuf), entropy2, sizeof(outbuf)))
43 return 0;
44 return 1;
45 }
46
setup_tests(void)47 int setup_tests(void)
48 {
49 if (!TEST_true(RAND_set_DRBG_type(NULL, "TEST-RAND", NULL, NULL, NULL)))
50 return 0;
51 ADD_TEST(test_rand);
52 return 1;
53 }
54
