1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
56
57 #include <memory>
58 #include <string>
59 #include <vector>
60
61 #include <gtest/gtest.h>
62
63 #include <openssl/digest.h>
64 #include <openssl/hmac.h>
65
66 #include "../test/file_test.h"
67 #include "../test/test_util.h"
68
69
GetDigest(const std::string & name)70 static const EVP_MD *GetDigest(const std::string &name) {
71 if (name == "MD5") {
72 return EVP_md5();
73 } else if (name == "SHA1") {
74 return EVP_sha1();
75 } else if (name == "SHA224") {
76 return EVP_sha224();
77 } else if (name == "SHA256") {
78 return EVP_sha256();
79 } else if (name == "SHA384") {
80 return EVP_sha384();
81 } else if (name == "SHA512") {
82 return EVP_sha512();
83 }
84 return nullptr;
85 }
86
TEST(HMACTest,TestVectors)87 TEST(HMACTest, TestVectors) {
88 FileTestGTest("crypto/hmac_extra/hmac_tests.txt", [](FileTest *t) {
89 std::string digest_str;
90 ASSERT_TRUE(t->GetAttribute(&digest_str, "HMAC"));
91 const EVP_MD *digest = GetDigest(digest_str);
92 ASSERT_TRUE(digest) << "Unknown digest: " << digest_str;
93
94 std::vector<uint8_t> key, input, output;
95 ASSERT_TRUE(t->GetBytes(&key, "Key"));
96 ASSERT_TRUE(t->GetBytes(&input, "Input"));
97 ASSERT_TRUE(t->GetBytes(&output, "Output"));
98 ASSERT_EQ(EVP_MD_size(digest), output.size());
99
100 // Test using the one-shot API.
101 unsigned expected_mac_len = EVP_MD_size(digest);
102 std::unique_ptr<uint8_t[]> mac(new uint8_t[expected_mac_len]);
103 unsigned mac_len;
104 ASSERT_TRUE(HMAC(digest, key.data(), key.size(), input.data(), input.size(),
105 mac.get(), &mac_len));
106 EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
107
108 // Test using HMAC_CTX.
109 bssl::ScopedHMAC_CTX ctx;
110 ASSERT_TRUE(
111 HMAC_Init_ex(ctx.get(), key.data(), key.size(), digest, nullptr));
112 ASSERT_TRUE(HMAC_Update(ctx.get(), input.data(), input.size()));
113 ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len));
114 EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
115
116 // Test that an HMAC_CTX may be reset with the same key.
117 ASSERT_TRUE(HMAC_Init_ex(ctx.get(), nullptr, 0, digest, nullptr));
118 ASSERT_TRUE(HMAC_Update(ctx.get(), input.data(), input.size()));
119 ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len));
120 EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
121
122 // Test feeding the input in byte by byte.
123 ASSERT_TRUE(HMAC_Init_ex(ctx.get(), nullptr, 0, nullptr, nullptr));
124 for (size_t i = 0; i < input.size(); i++) {
125 ASSERT_TRUE(HMAC_Update(ctx.get(), &input[i], 1));
126 }
127 ASSERT_TRUE(HMAC_Final(ctx.get(), mac.get(), &mac_len));
128 EXPECT_EQ(Bytes(output), Bytes(mac.get(), mac_len));
129 });
130 }
131