summaryrefslogtreecommitdiffstats
path: root/security/nss/gtests/ssl_gtest/tls_hkdf_unittest.cc
blob: 51ff938b14914d22f0d8b81d8d03c4147033fb77 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#include <memory>
#include "nss.h"
#include "pk11pub.h"
#include "tls13hkdf.h"

#include "databuffer.h"
#include "gtest_utils.h"
#include "scoped_ptrs.h"

namespace nss_test {

const uint8_t kKey1Data[] = {
    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
    0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
    0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f};
const DataBuffer kKey1(kKey1Data, sizeof(kKey1Data));

// The same as key1 but with the first byte
// 0x01.
const uint8_t kKey2Data[] = {
    0x01, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
    0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
    0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23,
    0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f};
const DataBuffer kKey2(kKey2Data, sizeof(kKey2Data));

const char kLabelMasterSecret[] = "master secret";

const uint8_t kSessionHash[] = {
    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb,
    0xfc, 0xfd, 0xfe, 0xff, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
    0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xd0, 0xd1, 0xd2, 0xd3,
    0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
    0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb,
    0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
    0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0xe0, 0xe1, 0xe2, 0xe3,
    0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
    0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb,
    0xfc, 0xfd, 0xfe, 0xff,
};

const size_t kHashLength[] = {
    0,  /* ssl_hash_none   */
    16, /* ssl_hash_md5    */
    20, /* ssl_hash_sha1   */
    28, /* ssl_hash_sha224 */
    32, /* ssl_hash_sha256 */
    48, /* ssl_hash_sha384 */
    64, /* ssl_hash_sha512 */
};

const std::string kHashName[] = {"None",    "MD5",     "SHA-1",  "SHA-224",
                                 "SHA-256", "SHA-384", "SHA-512"};

static void ImportKey(ScopedPK11SymKey* to, const DataBuffer& key,
                      PK11SlotInfo* slot) {
  SECItem key_item = {siBuffer, const_cast<uint8_t*>(key.data()),
                      static_cast<unsigned int>(key.len())};

  PK11SymKey* inner =
      PK11_ImportSymKey(slot, CKM_SSL3_MASTER_KEY_DERIVE, PK11_OriginUnwrap,
                        CKA_DERIVE, &key_item, NULL);
  ASSERT_NE(nullptr, inner);
  to->reset(inner);
}

static void DumpData(const std::string& label, const uint8_t* buf, size_t len) {
  DataBuffer d(buf, len);

  std::cerr << label << ": " << d << std::endl;
}

void DumpKey(const std::string& label, ScopedPK11SymKey& key) {
  SECStatus rv = PK11_ExtractKeyValue(key.get());
  ASSERT_EQ(SECSuccess, rv);

  SECItem* key_data = PK11_GetKeyData(key.get());
  ASSERT_NE(nullptr, key_data);

  DumpData(label, key_data->data, key_data->len);
}

extern "C" {
extern char ssl_trace;
extern FILE* ssl_trace_iob;
}

class TlsHkdfTest : public ::testing::Test,
                    public ::testing::WithParamInterface<SSLHashType> {
 public:
  TlsHkdfTest()
      : k1_(), k2_(), hash_type_(GetParam()), slot_(PK11_GetInternalSlot()) {
    EXPECT_NE(nullptr, slot_);
    char* ev = getenv("SSLTRACE");
    if (ev && ev[0]) {
      ssl_trace = atoi(ev);
      ssl_trace_iob = stderr;
    }
  }

  void SetUp() {
    ImportKey(&k1_, kKey1, slot_.get());
    ImportKey(&k2_, kKey2, slot_.get());
  }

  void VerifyKey(const ScopedPK11SymKey& key, const DataBuffer& expected) {
    SECStatus rv = PK11_ExtractKeyValue(key.get());
    ASSERT_EQ(SECSuccess, rv);

    SECItem* key_data = PK11_GetKeyData(key.get());
    ASSERT_NE(nullptr, key_data);

    EXPECT_EQ(expected.len(), key_data->len);
    EXPECT_EQ(0, memcmp(expected.data(), key_data->data, expected.len()));
  }

  void HkdfExtract(const ScopedPK11SymKey& ikmk1, const ScopedPK11SymKey& ikmk2,
                   SSLHashType base_hash, const DataBuffer& expected) {
    std::cerr << "Hash = " << kHashName[base_hash] << std::endl;

    PK11SymKey* prk = nullptr;
    SECStatus rv = tls13_HkdfExtract(ikmk1.get(), ikmk2.get(), base_hash, &prk);
    ASSERT_EQ(SECSuccess, rv);
    ScopedPK11SymKey prkk(prk);

    DumpKey("Output", prkk);
    VerifyKey(prkk, expected);
  }

  void HkdfExpandLabel(ScopedPK11SymKey* prk, SSLHashType base_hash,
                       const uint8_t* session_hash, size_t session_hash_len,
                       const char* label, size_t label_len,
                       const DataBuffer& expected) {
    std::cerr << "Hash = " << kHashName[base_hash] << std::endl;

    std::vector<uint8_t> output(expected.len());

    SECStatus rv = tls13_HkdfExpandLabelRaw(prk->get(), base_hash, session_hash,
                                            session_hash_len, label, label_len,
                                            &output[0], output.size());
    ASSERT_EQ(SECSuccess, rv);
    DumpData("Output", &output[0], output.size());
    EXPECT_EQ(0, memcmp(expected.data(), &output[0], expected.len()));
  }

 protected:
  ScopedPK11SymKey k1_;
  ScopedPK11SymKey k2_;
  SSLHashType hash_type_;

 private:
  ScopedPK11SlotInfo slot_;
};

TEST_P(TlsHkdfTest, HkdfNullNull) {
  const uint8_t tv[][48] = {
      {/* ssl_hash_none   */},
      {/* ssl_hash_md5    */},
      {/* ssl_hash_sha1   */},
      {/* ssl_hash_sha224 */},
      {0x33, 0xad, 0x0a, 0x1c, 0x60, 0x7e, 0xc0, 0x3b, 0x09, 0xe6, 0xcd,
       0x98, 0x93, 0x68, 0x0c, 0xe2, 0x10, 0xad, 0xf3, 0x00, 0xaa, 0x1f,
       0x26, 0x60, 0xe1, 0xb2, 0x2e, 0x10, 0xf1, 0x70, 0xf9, 0x2a},
      {0x7e, 0xe8, 0x20, 0x6f, 0x55, 0x70, 0x02, 0x3e, 0x6d, 0xc7, 0x51, 0x9e,
       0xb1, 0x07, 0x3b, 0xc4, 0xe7, 0x91, 0xad, 0x37, 0xb5, 0xc3, 0x82, 0xaa,
       0x10, 0xba, 0x18, 0xe2, 0x35, 0x7e, 0x71, 0x69, 0x71, 0xf9, 0x36, 0x2f,
       0x2c, 0x2f, 0xe2, 0xa7, 0x6b, 0xfd, 0x78, 0xdf, 0xec, 0x4e, 0xa9, 0xb5}};

  const DataBuffer expected_data(tv[hash_type_], kHashLength[hash_type_]);
  HkdfExtract(nullptr, nullptr, hash_type_, expected_data);
}

TEST_P(TlsHkdfTest, HkdfKey1Only) {
  const uint8_t tv[][48] = {
      {/* ssl_hash_none   */},
      {/* ssl_hash_md5    */},
      {/* ssl_hash_sha1   */},
      {/* ssl_hash_sha224 */},
      {0x11, 0x87, 0x38, 0x28, 0xa9, 0x19, 0x78, 0x11, 0x33, 0x91, 0x24,
       0xb5, 0x8a, 0x1b, 0xb0, 0x9f, 0x7f, 0x0d, 0x8d, 0xbb, 0x10, 0xf4,
       0x9c, 0x54, 0xbd, 0x1f, 0xd8, 0x85, 0xcd, 0x15, 0x30, 0x33},
      {0x51, 0xb1, 0xd5, 0xb4, 0x59, 0x79, 0x79, 0x08, 0x4a, 0x15, 0xb2, 0xdb,
       0x84, 0xd3, 0xd6, 0xbc, 0xfc, 0x93, 0x45, 0xd9, 0xdc, 0x74, 0xda, 0x1a,
       0x57, 0xc2, 0x76, 0x9f, 0x3f, 0x83, 0x45, 0x2f, 0xf6, 0xf3, 0x56, 0x1f,
       0x58, 0x63, 0xdb, 0x88, 0xda, 0x40, 0xce, 0x63, 0x7d, 0x24, 0x37, 0xf3}};

  const DataBuffer expected_data(tv[hash_type_], kHashLength[hash_type_]);
  HkdfExtract(k1_, nullptr, hash_type_, expected_data);
}

TEST_P(TlsHkdfTest, HkdfKey2Only) {
  const uint8_t tv[][48] = {
      {/* ssl_hash_none   */},
      {/* ssl_hash_md5    */},
      {/* ssl_hash_sha1   */},
      {/* ssl_hash_sha224 */},
      {
          0x2f, 0x5f, 0x78, 0xd0, 0xa4, 0xc4, 0x36, 0xee, 0x6c, 0x8a, 0x4e,
          0xf9, 0xd0, 0x43, 0x81, 0x02, 0x13, 0xfd, 0x47, 0x83, 0x63, 0x3a,
          0xd2, 0xe1, 0x40, 0x6d, 0x2d, 0x98, 0x00, 0xfd, 0xc1, 0x87,
      },
      {0x7b, 0x40, 0xf9, 0xef, 0x91, 0xff, 0xc9, 0xd1, 0x29, 0x24, 0x5c, 0xbf,
       0xf8, 0x82, 0x76, 0x68, 0xae, 0x4b, 0x63, 0xe8, 0x03, 0xdd, 0x39, 0xa8,
       0xd4, 0x6a, 0xf6, 0xe5, 0xec, 0xea, 0xf8, 0x7d, 0x91, 0x71, 0x81, 0xf1,
       0xdb, 0x3b, 0xaf, 0xbf, 0xde, 0x71, 0x61, 0x15, 0xeb, 0xb5, 0x5f, 0x68}};

  const DataBuffer expected_data(tv[hash_type_], kHashLength[hash_type_]);
  HkdfExtract(nullptr, k2_, hash_type_, expected_data);
}

TEST_P(TlsHkdfTest, HkdfKey1Key2) {
  const uint8_t tv[][48] = {
      {/* ssl_hash_none   */},
      {/* ssl_hash_md5    */},
      {/* ssl_hash_sha1   */},
      {/* ssl_hash_sha224 */},
      {
          0x79, 0x53, 0xb8, 0xdd, 0x6b, 0x98, 0xce, 0x00, 0xb7, 0xdc, 0xe8,
          0x03, 0x70, 0x8c, 0xe3, 0xac, 0x06, 0x8b, 0x22, 0xfd, 0x0e, 0x34,
          0x48, 0xe6, 0xe5, 0xe0, 0x8a, 0xd6, 0x16, 0x18, 0xe5, 0x48,
      },
      {0x01, 0x93, 0xc0, 0x07, 0x3f, 0x6a, 0x83, 0x0e, 0x2e, 0x4f, 0xb2, 0x58,
       0xe4, 0x00, 0x08, 0x5c, 0x68, 0x9c, 0x37, 0x32, 0x00, 0x37, 0xff, 0xc3,
       0x1c, 0x5b, 0x98, 0x0b, 0x02, 0x92, 0x3f, 0xfd, 0x73, 0x5a, 0x6f, 0x2a,
       0x95, 0xa3, 0xee, 0xf6, 0xd6, 0x8e, 0x6f, 0x86, 0xea, 0x63, 0xf8, 0x33}};

  const DataBuffer expected_data(tv[hash_type_], kHashLength[hash_type_]);
  HkdfExtract(k1_, k2_, hash_type_, expected_data);
}

TEST_P(TlsHkdfTest, HkdfExpandLabel) {
  const uint8_t tv[][48] = {
      {/* ssl_hash_none   */},
      {/* ssl_hash_md5    */},
      {/* ssl_hash_sha1   */},
      {/* ssl_hash_sha224 */},
      {0x34, 0x7c, 0x67, 0x80, 0xff, 0x0b, 0xba, 0xd7, 0x1c, 0x28, 0x3b,
       0x16, 0xeb, 0x2f, 0x9c, 0xf6, 0x2d, 0x24, 0xe6, 0xcd, 0xb6, 0x13,
       0xd5, 0x17, 0x76, 0x54, 0x8c, 0xb0, 0x7d, 0xcd, 0xe7, 0x4c},
      {0x4b, 0x1e, 0x5e, 0xc1, 0x49, 0x30, 0x78, 0xea, 0x35, 0xbd, 0x3f, 0x01,
       0x04, 0xe6, 0x1a, 0xea, 0x14, 0xcc, 0x18, 0x2a, 0xd1, 0xc4, 0x76, 0x21,
       0xc4, 0x64, 0xc0, 0x4e, 0x4b, 0x36, 0x16, 0x05, 0x6f, 0x04, 0xab, 0xe9,
       0x43, 0xb1, 0x2d, 0xa8, 0xa7, 0x17, 0x9a, 0x5f, 0x09, 0x91, 0x7d, 0x1f}};

  const DataBuffer expected_data(tv[hash_type_], kHashLength[hash_type_]);
  HkdfExpandLabel(&k1_, hash_type_, kSessionHash, kHashLength[hash_type_],
                  kLabelMasterSecret, strlen(kLabelMasterSecret),
                  expected_data);
}

static const SSLHashType kHashTypes[] = {ssl_hash_sha256, ssl_hash_sha384};
INSTANTIATE_TEST_CASE_P(AllHashFuncs, TlsHkdfTest,
                        ::testing::ValuesIn(kHashTypes));

}  // namespace nss_test