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
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include "components/webcrypto/algorithm_dispatch.h"
#include "components/webcrypto/status.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/platform/web_crypto_algorithm.h"
#include "third_party/blink/public/platform/web_crypto_algorithm_params.h"
#include "third_party/blink/public/platform/web_crypto_key.h"
#include "third_party/blink/public/platform/web_crypto_key_algorithm.h"
#include "third_party/fuzztest/src/fuzztest/fuzztest.h"
auto AnyKeyUsage() {
return fuzztest::BitFlagCombinationOf<blink::WebCryptoKeyUsage>(
{blink::kWebCryptoKeyUsageEncrypt, blink::kWebCryptoKeyUsageDecrypt,
blink::kWebCryptoKeyUsageSign, blink::kWebCryptoKeyUsageVerify,
blink::kWebCryptoKeyUsageDeriveKey, blink::kWebCryptoKeyUsageWrapKey,
blink::kWebCryptoKeyUsageUnwrapKey,
blink::kWebCryptoKeyUsageDeriveBits});
}
auto AesCbcAlgorithm() {
return fuzztest::Map(
[](std::vector<unsigned char> param) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdAesCbc,
new blink::WebCryptoAesCbcParams(std::move(param)));
},
fuzztest::Arbitrary<std::vector<unsigned char>>());
}
auto AesCtrAlgorithm() {
return fuzztest::Map(
[](unsigned char length_bits, std::vector<unsigned char> counter) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdAesCtr,
new blink::WebCryptoAesCtrParams(length_bits, std::move(counter)));
},
fuzztest::Arbitrary<unsigned char>(),
fuzztest::Arbitrary<std::vector<unsigned char>>());
}
auto AesGcmAlgorithm() {
return fuzztest::Map(
[](std::vector<unsigned char> iv, bool has_additional_data,
std::vector<unsigned char> additional_data, bool has_tag_length_bits,
unsigned char tag_length_bits) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdAesGcm,
new blink::WebCryptoAesGcmParams(
std::move(iv), has_additional_data, std::move(additional_data),
has_tag_length_bits, tag_length_bits));
},
fuzztest::Arbitrary<std::vector<unsigned char>>(),
fuzztest::Arbitrary<bool>(),
fuzztest::Arbitrary<std::vector<unsigned char>>(),
fuzztest::Arbitrary<bool>(), fuzztest::Arbitrary<unsigned char>());
}
auto AesKwAlgorithm() {
return fuzztest::Map([]() {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdAesKw, nullptr);
});
}
auto HmacAlgorithm(fuzztest::Domain<blink::WebCryptoAlgorithm> entry_domain) {
return fuzztest::Map(
[](blink::WebCryptoAlgorithm algo, bool has_length,
unsigned length_bits) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdHmac,
new blink::WebCryptoHmacImportParams(algo, has_length,
length_bits));
},
entry_domain, fuzztest::Arbitrary<bool>(),
fuzztest::Arbitrary<unsigned>());
}
auto X25519Algorithm() {
return fuzztest::Map([]() {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdX25519, nullptr);
});
}
auto Ed25519Algorithm() {
return fuzztest::Map([]() {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdEd25519, nullptr);
});
}
auto Pbkdf2Algorithm(fuzztest::Domain<blink::WebCryptoAlgorithm> entry_domain) {
return fuzztest::Map(
[](blink::WebCryptoAlgorithm algo, std::vector<unsigned char> salt,
unsigned iteration) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdPbkdf2,
new blink::WebCryptoPbkdf2Params(algo, std::move(salt), iteration));
},
entry_domain, fuzztest::Arbitrary<std::vector<unsigned char>>(),
fuzztest::Arbitrary<unsigned>());
}
auto HkdfAlgorithm(fuzztest::Domain<blink::WebCryptoAlgorithm> entry_domain) {
return fuzztest::Map(
[](blink::WebCryptoAlgorithm algo, std::vector<unsigned char> salt,
std::vector<unsigned char> info) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdHkdf,
new blink::WebCryptoHkdfParams(algo, std::move(salt),
std::move(info)));
},
entry_domain, fuzztest::Arbitrary<std::vector<unsigned char>>(),
fuzztest::Arbitrary<std::vector<unsigned char>>());
}
auto RsaPssAlgorithm() {
return fuzztest::Map(
[](unsigned salt_length_bytes) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdRsaPss,
new blink::WebCryptoRsaPssParams(salt_length_bytes));
},
fuzztest::Arbitrary<unsigned>());
}
auto RsaOaepAlgorithm() {
return fuzztest::Map(
[](bool has_label, std::vector<unsigned char> label) {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdRsaOaep,
new blink::WebCryptoRsaOaepParams(has_label, std::move(label)));
},
fuzztest::Arbitrary<bool>(),
fuzztest::Arbitrary<std::vector<unsigned char>>());
}
auto Sha1Algorithm() {
return fuzztest::Map([]() {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdSha1, nullptr);
});
}
auto Sha256Algorithm() {
return fuzztest::Map([]() {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdSha256, nullptr);
});
}
auto Sha384Algorithm() {
return fuzztest::Map([]() {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdSha384, nullptr);
});
}
auto Sha512Algorithm() {
return fuzztest::Map([]() {
return blink::WebCryptoAlgorithm::AdoptParamsAndCreate(
blink::kWebCryptoAlgorithmIdSha512, nullptr);
});
}
auto AnyAlgorithm() {
fuzztest::DomainBuilder builder;
builder.Set<blink::WebCryptoAlgorithm>(
"algorithm",
fuzztest::OneOf(
AesCbcAlgorithm(), AesCtrAlgorithm(), AesGcmAlgorithm(),
AesKwAlgorithm(),
HmacAlgorithm(builder.Get<blink::WebCryptoAlgorithm>("algorithm")),
Pbkdf2Algorithm(builder.Get<blink::WebCryptoAlgorithm>("algorithm")),
HkdfAlgorithm(builder.Get<blink::WebCryptoAlgorithm>("algorithm")),
X25519Algorithm(), Ed25519Algorithm(), RsaPssAlgorithm(),
RsaOaepAlgorithm(), Sha1Algorithm(), Sha256Algorithm(),
Sha384Algorithm(), Sha512Algorithm()));
return std::move(builder).Finalize<blink::WebCryptoAlgorithm>("algorithm");
}
static void ImportKeyFuzzer(blink::WebCryptoAlgorithm algo,
blink::WebCryptoKeyUsage key_usage,
base::span<const uint8_t> key_data) {
blink::WebCryptoKey key;
auto status = webcrypto::ImportKey(blink::kWebCryptoKeyFormatRaw, key_data,
algo, true, key_usage, &key);
}
static void EncryptFuzzer(blink::WebCryptoAlgorithm algo,
blink::WebCryptoKeyUsage key_usage,
base::span<const uint8_t> key_data,
base::span<const uint8_t> data) {
blink::WebCryptoKey key;
auto status = webcrypto::ImportKey(blink::kWebCryptoKeyFormatRaw, key_data,
algo, true, key_usage, &key);
if (!status.IsSuccess()) {
return;
}
std::vector<uint8_t> buffer;
webcrypto::Encrypt(algo, key, data, &buffer);
}
static void DecryptFuzzer(blink::WebCryptoAlgorithm algo,
blink::WebCryptoKeyUsage key_usage,
base::span<const uint8_t> key_data,
base::span<const uint8_t> data) {
blink::WebCryptoKey key;
auto status = webcrypto::ImportKey(blink::kWebCryptoKeyFormatRaw, key_data,
algo, true, key_usage, &key);
if (!status.IsSuccess()) {
return;
}
std::vector<uint8_t> buffer;
webcrypto::Decrypt(algo, key, data, &buffer);
}
static void DigestFuzzer(blink::WebCryptoAlgorithm algo,
base::span<const uint8_t> data) {
std::vector<uint8_t> buffer;
webcrypto::Digest(algo, data, &buffer);
}
static void SignFuzzer(blink::WebCryptoAlgorithm algo,
blink::WebCryptoKeyUsage key_usage,
base::span<const uint8_t> key_data,
base::span<const uint8_t> data) {
blink::WebCryptoKey key;
auto status = webcrypto::ImportKey(blink::kWebCryptoKeyFormatRaw, key_data,
algo, true, key_usage, &key);
if (!status.IsSuccess() || key.Algorithm().IsNull()) {
return;
}
std::vector<uint8_t> buffer;
webcrypto::Sign(algo, key, data, &buffer);
}
static void VerifyFuzzer(blink::WebCryptoAlgorithm algo,
blink::WebCryptoKeyUsage key_usage,
base::span<const uint8_t> key_data,
base::span<const uint8_t> signature,
base::span<const uint8_t> data) {
blink::WebCryptoKey key;
auto status = webcrypto::ImportKey(blink::kWebCryptoKeyFormatRaw, key_data,
algo, true, key_usage, &key);
if (!status.IsSuccess() || key.Algorithm().IsNull()) {
return;
}
bool match;
webcrypto::Verify(algo, key, signature, data, &match);
}
static void DeriveBitsFuzzer(blink::WebCryptoAlgorithm algo,
blink::WebCryptoKeyUsage key_usage,
base::span<const uint8_t> key_data,
unsigned int length_bits) {
blink::WebCryptoKey key;
auto status = webcrypto::ImportKey(blink::kWebCryptoKeyFormatRaw, key_data,
algo, true, key_usage, &key);
if (!status.IsSuccess() || key.Algorithm().IsNull()) {
return;
}
std::vector<uint8_t> derived_bytes;
webcrypto::DeriveBits(algo, key, length_bits, &derived_bytes);
}
FUZZ_TEST(WebCryptoFuzzer, ImportKeyFuzzer)
.WithDomains(AnyAlgorithm(),
AnyKeyUsage(),
fuzztest::Arbitrary<std::vector<uint8_t>>());
FUZZ_TEST(WebCryptoFuzzer, EncryptFuzzer)
.WithDomains(AnyAlgorithm(),
AnyKeyUsage(),
fuzztest::Arbitrary<std::vector<uint8_t>>(),
fuzztest::Arbitrary<std::vector<uint8_t>>());
FUZZ_TEST(WebCryptoFuzzer, DecryptFuzzer)
.WithDomains(AnyAlgorithm(),
AnyKeyUsage(),
fuzztest::Arbitrary<std::vector<uint8_t>>(),
fuzztest::Arbitrary<std::vector<uint8_t>>());
FUZZ_TEST(WebCryptoFuzzer, DigestFuzzer)
.WithDomains(AnyAlgorithm(), fuzztest::Arbitrary<std::vector<uint8_t>>());
FUZZ_TEST(WebCryptoFuzzer, SignFuzzer)
.WithDomains(AnyAlgorithm(),
AnyKeyUsage(),
fuzztest::Arbitrary<std::vector<uint8_t>>(),
fuzztest::Arbitrary<std::vector<uint8_t>>());
FUZZ_TEST(WebCryptoFuzzer, VerifyFuzzer)
.WithDomains(AnyAlgorithm(),
AnyKeyUsage(),
fuzztest::Arbitrary<std::vector<uint8_t>>(),
fuzztest::Arbitrary<std::vector<uint8_t>>(),
fuzztest::Arbitrary<std::vector<uint8_t>>());
FUZZ_TEST(WebCryptoFuzzer, DeriveBitsFuzzer)
.WithDomains(AnyAlgorithm(),
AnyKeyUsage(),
fuzztest::Arbitrary<std::vector<uint8_t>>(),
fuzztest::Arbitrary<unsigned int>());
|
