1 /*
2 * Copyright (c) 2020, The OpenThread Authors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. Neither the name of the copyright holder nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <openthread/config.h>
30
31 #include "test_platform.h"
32 #include "test_util.h"
33 #include "test_util.hpp"
34
35 #include "common/array.hpp"
36 #include "common/debug.hpp"
37 #include "crypto/hkdf_sha256.hpp"
38
39 namespace ot {
40
41 struct TestVector
42 {
43 const uint8_t *mInKey;
44 uint16_t mInKeyLength;
45 const uint8_t *mSalt;
46 uint16_t mSaltLength;
47 const uint8_t *mInfo;
48 uint16_t mInfoLength;
49 const uint8_t *mOutKey;
50 uint16_t mOutKeyLength;
51 };
52
TestHkdfSha256(void)53 void TestHkdfSha256(void)
54 {
55 enum
56 {
57 kMaxOuttKey = 128,
58 kFillByte = 0x77,
59 };
60
61 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
62 // Test Case #1: RFC-5869 Appendix A.1
63 const uint8_t kInKey1[] = {0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
64 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b};
65 const uint8_t kSalt1[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c};
66 const uint8_t kInfo1[] = {0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9};
67 const uint8_t kOutKey1[] = {0x3c, 0xb2, 0x5f, 0x25, 0xfa, 0xac, 0xd5, 0x7a, 0x90, 0x43, 0x4f, 0x64, 0xd0, 0x36,
68 0x2f, 0x2a, 0x2d, 0x2d, 0x0a, 0x90, 0xcf, 0x1a, 0x5a, 0x4c, 0x5d, 0xb0, 0x2d, 0x56,
69 0xec, 0xc4, 0xc5, 0xbf, 0x34, 0x00, 0x72, 0x08, 0xd5, 0xb8, 0x87, 0x18, 0x58, 0x65};
70
71 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
72 // Test Case #2: RFC-5869 Appendix A.2
73
74 const uint8_t kInKey2[] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
75 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b,
76 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29,
77 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
78 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45,
79 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f};
80
81 const uint8_t kSalt2[] = {0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d,
82 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b,
83 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89,
84 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
85 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5,
86 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf};
87
88 const uint8_t kInfo2[] = {0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd,
89 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb,
90 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9,
91 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
92 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5,
93 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff};
94
95 const uint8_t kOutKey2[] = {0xb1, 0x1e, 0x39, 0x8d, 0xc8, 0x03, 0x27, 0xa1, 0xc8, 0xe7, 0xf7, 0x8c, 0x59, 0x6a,
96 0x49, 0x34, 0x4f, 0x01, 0x2e, 0xda, 0x2d, 0x4e, 0xfa, 0xd8, 0xa0, 0x50, 0xcc, 0x4c,
97 0x19, 0xaf, 0xa9, 0x7c, 0x59, 0x04, 0x5a, 0x99, 0xca, 0xc7, 0x82, 0x72, 0x71, 0xcb,
98 0x41, 0xc6, 0x5e, 0x59, 0x0e, 0x09, 0xda, 0x32, 0x75, 0x60, 0x0c, 0x2f, 0x09, 0xb8,
99 0x36, 0x77, 0x93, 0xa9, 0xac, 0xa3, 0xdb, 0x71, 0xcc, 0x30, 0xc5, 0x81, 0x79, 0xec,
100 0x3e, 0x87, 0xc1, 0x4c, 0x01, 0xd5, 0xc1, 0xf3, 0x43, 0x4f, 0x1d, 0x87};
101
102 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
103 // Test Case #3: RFC-5869 Appendix A.3
104
105 const uint8_t kInKey3[] = {0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
106 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b};
107
108 const uint8_t kOutKey3[] = {0x8d, 0xa4, 0xe7, 0x75, 0xa5, 0x63, 0xc1, 0x8f, 0x71, 0x5f, 0x80, 0x2a, 0x06, 0x3c,
109 0x5a, 0x31, 0xb8, 0xa1, 0x1f, 0x5c, 0x5e, 0xe1, 0x87, 0x9e, 0xc3, 0x45, 0x4e, 0x5f,
110 0x3c, 0x73, 0x8d, 0x2d, 0x9d, 0x20, 0x13, 0x95, 0xfa, 0xa4, 0xb6, 0x1a, 0x96, 0xc8};
111
112 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
113 // Test Case #4:
114
115 const uint8_t kInKey4[] = {'h', 'e', 'l', 'l', 'o'};
116 const uint8_t kSalt4[] = {0x8e, 0x94, 0xef, 0x80, 0x5b, 0x93, 0xe6, 0x83, 0xff, 0x18};
117 const uint8_t kOutKey4[] = {0x13, 0x48, 0x50, 0x67, 0xe2, 0x1a, 0xf1, 0x7c,
118 0x09, 0x00, 0xf7, 0x0d, 0x88, 0x5f, 0x02, 0x59};
119
120 const TestVector kTestVectors[] = {
121 {kInKey1, sizeof(kInKey1), kSalt1, sizeof(kSalt1), kInfo1, sizeof(kInfo1), kOutKey1, sizeof(kOutKey1)},
122 {kInKey2, sizeof(kInKey2), kSalt2, sizeof(kSalt2), kInfo2, sizeof(kInfo2), kOutKey2, sizeof(kOutKey2)},
123 {kInKey3, sizeof(kInKey3), nullptr, 0, nullptr, 0, kOutKey3, sizeof(kOutKey3)},
124 {kInKey4, sizeof(kInKey4), kSalt4, sizeof(kSalt4), nullptr, 0, kOutKey4, sizeof(kOutKey4)},
125 };
126
127 otInstance *instance = testInitInstance();
128
129 VerifyOrQuit(instance != nullptr);
130
131 for (const TestVector *test = &kTestVectors[0]; test < GetArrayEnd(kTestVectors); test++)
132 {
133 Crypto::HkdfSha256 hkdf;
134 uint8_t outKey[kMaxOuttKey];
135 Crypto::Key testInputKey;
136
137 printf("\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -");
138 DumpBuffer("\nInput Key", test->mInKey, test->mInKeyLength);
139 DumpBuffer("\nSalt", test->mSalt, test->mSaltLength);
140 DumpBuffer("\nInfo", test->mInfo, test->mInfoLength);
141 DumpBuffer("\nExpected Output Key", test->mOutKey, test->mOutKeyLength);
142
143 memset(outKey, kFillByte, sizeof(outKey));
144 memset(&testInputKey, 0x00, sizeof(testInputKey));
145 testInputKey.mKey = test->mInKey;
146 testInputKey.mKeyLength = test->mInKeyLength;
147
148 hkdf.Extract(test->mSalt, test->mSaltLength, testInputKey);
149 hkdf.Expand(test->mInfo, test->mInfoLength, outKey, test->mOutKeyLength);
150
151 DumpBuffer("\nCalculated Output Key", outKey, test->mOutKeyLength);
152
153 VerifyOrQuit(memcmp(outKey, test->mOutKey, test->mOutKeyLength) == 0, "HKDF-SHA-256 failed");
154
155 for (size_t i = test->mOutKeyLength + 1; i < sizeof(outKey); i++)
156 {
157 VerifyOrQuit(outKey[i] == kFillByte, "HKDF-SHA-256 wrote beyond output key length");
158 }
159 }
160
161 testFreeInstance(instance);
162 }
163
164 } // namespace ot
165
main(void)166 int main(void)
167 {
168 ot::TestHkdfSha256();
169 printf("All tests passed\n");
170 return 0;
171 }
172
