1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <keymaster/km_openssl/hmac.h>
18
19 #include <gtest/gtest.h>
20 #include <string.h>
21
22 #include "android_keymaster_test_utils.h"
23
24 using std::string;
25
26 namespace keymaster {
27
28 namespace test {
29
30 struct HmacTest {
31 const char* data;
32 const char* key;
33 uint8_t digest[32];
34 };
35
36 static const HmacTest kHmacTests[] = {
37 {
38 "Test Using Larger Than Block-Size Key - Hash Key First",
39 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
40 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
41 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
42 "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
43 {
44 0x60, 0xe4, 0x31, 0x59, 0x1e, 0xe0, 0xb6, 0x7f, 0x0d, 0x8a, 0x26,
45 0xaa, 0xcb, 0xf5, 0xb7, 0x7f, 0x8e, 0x0b, 0xc6, 0x21, 0x37, 0x28,
46 0xc5, 0x14, 0x05, 0x46, 0x04, 0x0f, 0x0e, 0xe3, 0x7f, 0x54,
47 },
48 },
49 {
50 "The test message for the MD2, MD5, and SHA-1 hashing algorithms.",
51 "46697265666f7820616e64205468756e64657242697264206172652061776573"
52 "6f6d652100",
53 {
54 0x05, 0x75, 0x9a, 0x9e, 0x70, 0x5e, 0xe7, 0x44, 0xe2, 0x46, 0x4b,
55 0x92, 0x22, 0x14, 0x22, 0xe0, 0x1b, 0x92, 0x8a, 0x0c, 0xfe, 0xf5,
56 0x49, 0xe9, 0xa7, 0x1b, 0x56, 0x7d, 0x1d, 0x29, 0x40, 0x48,
57 },
58 },
59 };
60
TEST(HmacTest,SHA256)61 TEST(HmacTest, SHA256) {
62 for (size_t i = 0; i < 2; i++) {
63 const HmacTest& test(kHmacTests[i]);
64
65 HmacSha256 hmac;
66 const string key = hex2str(test.key);
67 Buffer key_buffer(key.data(), key.size());
68 ASSERT_TRUE(hmac.Init(key_buffer));
69
70 uint8_t digest_copy[sizeof(test.digest)];
71 memcpy(digest_copy, test.digest, sizeof(test.digest));
72 Buffer digest_buffer(reinterpret_cast<uint8_t*>(digest_copy), sizeof(digest_copy));
73
74 Buffer data_buffer(test.data, strlen(test.data));
75 EXPECT_TRUE(hmac.Verify(data_buffer, digest_buffer));
76
77 digest_copy[16] ^= 0x80;
78 digest_buffer.Reinitialize(reinterpret_cast<uint8_t*>(digest_copy), sizeof(digest_copy));
79 EXPECT_FALSE(hmac.Verify(data_buffer, digest_buffer));
80 }
81 }
82
83 } // namespace test
84 } // namespace keymaster
85