1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "content/child/webcrypto/test/test_helpers.h"
6
7 #include <algorithm>
8
9 #include "base/files/file_util.h"
10 #include "base/json/json_reader.h"
11 #include "base/json/json_writer.h"
12 #include "base/logging.h"
13 #include "base/path_service.h"
14 #include "base/stl_util.h"
15 #include "base/strings/string_number_conversions.h"
16 #include "base/strings/string_util.h"
17 #include "base/values.h"
18 #include "content/child/webcrypto/algorithm_dispatch.h"
19 #include "content/child/webcrypto/crypto_data.h"
20 #include "content/child/webcrypto/jwk.h"
21 #include "content/child/webcrypto/status.h"
22 #include "content/child/webcrypto/webcrypto_util.h"
23 #include "content/public/common/content_paths.h"
24 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
25 #include "third_party/WebKit/public/platform/WebCryptoKeyAlgorithm.h"
26 #include "third_party/re2/re2/re2.h"
27
28 #if !defined(USE_OPENSSL)
29 #include <nss.h>
30 #include <pk11pub.h>
31
32 #include "crypto/nss_util.h"
33 #include "crypto/scoped_nss_types.h"
34 #endif
35
36 namespace content {
37
38 namespace webcrypto {
39
PrintTo(const Status & status,::std::ostream * os)40 void PrintTo(const Status& status, ::std::ostream* os) {
41 if (status.IsSuccess())
42 *os << "Success";
43 else
44 *os << "Error type: " << status.error_type()
45 << " Error details: " << status.error_details();
46 }
47
operator ==(const Status & a,const Status & b)48 bool operator==(const Status& a, const Status& b) {
49 if (a.IsSuccess() != b.IsSuccess())
50 return false;
51 if (a.IsSuccess())
52 return true;
53 return a.error_type() == b.error_type() &&
54 a.error_details() == b.error_details();
55 }
56
operator !=(const Status & a,const Status & b)57 bool operator!=(const Status& a, const Status& b) {
58 return !(a == b);
59 }
60
PrintTo(const CryptoData & data,::std::ostream * os)61 void PrintTo(const CryptoData& data, ::std::ostream* os) {
62 *os << "[" << base::HexEncode(data.bytes(), data.byte_length()) << "]";
63 }
64
operator ==(const CryptoData & a,const CryptoData & b)65 bool operator==(const CryptoData& a, const CryptoData& b) {
66 return a.byte_length() == b.byte_length() &&
67 memcmp(a.bytes(), b.bytes(), a.byte_length()) == 0;
68 }
69
operator !=(const CryptoData & a,const CryptoData & b)70 bool operator!=(const CryptoData& a, const CryptoData& b) {
71 return !(a == b);
72 }
73
SupportsAesGcm()74 bool SupportsAesGcm() {
75 std::vector<uint8_t> key_raw(16, 0);
76
77 blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
78 Status status = ImportKey(blink::WebCryptoKeyFormatRaw,
79 CryptoData(key_raw),
80 CreateAlgorithm(blink::WebCryptoAlgorithmIdAesGcm),
81 true,
82 blink::WebCryptoKeyUsageEncrypt,
83 &key);
84
85 if (status.IsError())
86 EXPECT_EQ(blink::WebCryptoErrorTypeNotSupported, status.error_type());
87 return status.IsSuccess();
88 }
89
SupportsRsaOaep()90 bool SupportsRsaOaep() {
91 #if defined(USE_OPENSSL)
92 return true;
93 #else
94 crypto::EnsureNSSInit();
95 // TODO(eroman): Exclude version test for OS_CHROMEOS
96 #if defined(USE_NSS)
97 if (!NSS_VersionCheck("3.16.2"))
98 return false;
99 #endif
100 crypto::ScopedPK11Slot slot(PK11_GetInternalKeySlot());
101 return !!PK11_DoesMechanism(slot.get(), CKM_RSA_PKCS_OAEP);
102 #endif
103 }
104
SupportsRsaPrivateKeyImport()105 bool SupportsRsaPrivateKeyImport() {
106 // TODO(eroman): Exclude version test for OS_CHROMEOS
107 #if defined(USE_NSS)
108 crypto::EnsureNSSInit();
109 if (!NSS_VersionCheck("3.16.2")) {
110 LOG(WARNING) << "RSA key import is not supported by this version of NSS. "
111 "Skipping some tests";
112 return false;
113 }
114 #endif
115 return true;
116 }
117
CreateRsaHashedKeyGenAlgorithm(blink::WebCryptoAlgorithmId algorithm_id,const blink::WebCryptoAlgorithmId hash_id,unsigned int modulus_length,const std::vector<uint8_t> & public_exponent)118 blink::WebCryptoAlgorithm CreateRsaHashedKeyGenAlgorithm(
119 blink::WebCryptoAlgorithmId algorithm_id,
120 const blink::WebCryptoAlgorithmId hash_id,
121 unsigned int modulus_length,
122 const std::vector<uint8_t>& public_exponent) {
123 DCHECK(algorithm_id == blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 ||
124 algorithm_id == blink::WebCryptoAlgorithmIdRsaOaep);
125 DCHECK(blink::WebCryptoAlgorithm::isHash(hash_id));
126 return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
127 algorithm_id,
128 new blink::WebCryptoRsaHashedKeyGenParams(
129 CreateAlgorithm(hash_id),
130 modulus_length,
131 vector_as_array(&public_exponent),
132 public_exponent.size()));
133 }
134
Corrupted(const std::vector<uint8_t> & input)135 std::vector<uint8_t> Corrupted(const std::vector<uint8_t>& input) {
136 std::vector<uint8_t> corrupted_data(input);
137 if (corrupted_data.empty())
138 corrupted_data.push_back(0);
139 corrupted_data[corrupted_data.size() / 2] ^= 0x01;
140 return corrupted_data;
141 }
142
HexStringToBytes(const std::string & hex)143 std::vector<uint8_t> HexStringToBytes(const std::string& hex) {
144 std::vector<uint8_t> bytes;
145 base::HexStringToBytes(hex, &bytes);
146 return bytes;
147 }
148
MakeJsonVector(const std::string & json_string)149 std::vector<uint8_t> MakeJsonVector(const std::string& json_string) {
150 return std::vector<uint8_t>(json_string.begin(), json_string.end());
151 }
152
MakeJsonVector(const base::DictionaryValue & dict)153 std::vector<uint8_t> MakeJsonVector(const base::DictionaryValue& dict) {
154 std::string json;
155 base::JSONWriter::Write(&dict, &json);
156 return MakeJsonVector(json);
157 }
158
ReadJsonTestFile(const char * test_file_name,scoped_ptr<base::Value> * value)159 ::testing::AssertionResult ReadJsonTestFile(const char* test_file_name,
160 scoped_ptr<base::Value>* value) {
161 base::FilePath test_data_dir;
162 if (!PathService::Get(DIR_TEST_DATA, &test_data_dir))
163 return ::testing::AssertionFailure() << "Couldn't retrieve test dir";
164
165 base::FilePath file_path =
166 test_data_dir.AppendASCII("webcrypto").AppendASCII(test_file_name);
167
168 std::string file_contents;
169 if (!base::ReadFileToString(file_path, &file_contents)) {
170 return ::testing::AssertionFailure()
171 << "Couldn't read test file: " << file_path.value();
172 }
173
174 // Strip C++ style comments out of the "json" file, otherwise it cannot be
175 // parsed.
176 re2::RE2::GlobalReplace(&file_contents, re2::RE2("\\s*//.*"), "");
177
178 // Parse the JSON to a dictionary.
179 value->reset(base::JSONReader::Read(file_contents));
180 if (!value->get()) {
181 return ::testing::AssertionFailure()
182 << "Couldn't parse test file JSON: " << file_path.value();
183 }
184
185 return ::testing::AssertionSuccess();
186 }
187
ReadJsonTestFileToList(const char * test_file_name,scoped_ptr<base::ListValue> * list)188 ::testing::AssertionResult ReadJsonTestFileToList(
189 const char* test_file_name,
190 scoped_ptr<base::ListValue>* list) {
191 // Read the JSON.
192 scoped_ptr<base::Value> json;
193 ::testing::AssertionResult result = ReadJsonTestFile(test_file_name, &json);
194 if (!result)
195 return result;
196
197 // Cast to an ListValue.
198 base::ListValue* list_value = NULL;
199 if (!json->GetAsList(&list_value) || !list_value)
200 return ::testing::AssertionFailure() << "The JSON was not a list";
201
202 list->reset(list_value);
203 ignore_result(json.release());
204
205 return ::testing::AssertionSuccess();
206 }
207
GetBytesFromHexString(base::DictionaryValue * dict,const char * property_name)208 std::vector<uint8_t> GetBytesFromHexString(base::DictionaryValue* dict,
209 const char* property_name) {
210 std::string hex_string;
211 if (!dict->GetString(property_name, &hex_string)) {
212 EXPECT_TRUE(false) << "Couldn't get string property: " << property_name;
213 return std::vector<uint8_t>();
214 }
215
216 return HexStringToBytes(hex_string);
217 }
218
GetDigestAlgorithm(base::DictionaryValue * dict,const char * property_name)219 blink::WebCryptoAlgorithm GetDigestAlgorithm(base::DictionaryValue* dict,
220 const char* property_name) {
221 std::string algorithm_name;
222 if (!dict->GetString(property_name, &algorithm_name)) {
223 EXPECT_TRUE(false) << "Couldn't get string property: " << property_name;
224 return blink::WebCryptoAlgorithm::createNull();
225 }
226
227 struct {
228 const char* name;
229 blink::WebCryptoAlgorithmId id;
230 } kDigestNameToId[] = {
231 {"sha-1", blink::WebCryptoAlgorithmIdSha1},
232 {"sha-256", blink::WebCryptoAlgorithmIdSha256},
233 {"sha-384", blink::WebCryptoAlgorithmIdSha384},
234 {"sha-512", blink::WebCryptoAlgorithmIdSha512},
235 };
236
237 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kDigestNameToId); ++i) {
238 if (kDigestNameToId[i].name == algorithm_name)
239 return CreateAlgorithm(kDigestNameToId[i].id);
240 }
241
242 return blink::WebCryptoAlgorithm::createNull();
243 }
244
245 // Creates a comparator for |bufs| which operates on indices rather than values.
246 class CompareUsingIndex {
247 public:
CompareUsingIndex(const std::vector<std::vector<uint8_t>> * bufs)248 explicit CompareUsingIndex(const std::vector<std::vector<uint8_t> >* bufs)
249 : bufs_(bufs) {}
250
operator ()(size_t i1,size_t i2)251 bool operator()(size_t i1, size_t i2) { return (*bufs_)[i1] < (*bufs_)[i2]; }
252
253 private:
254 const std::vector<std::vector<uint8_t> >* bufs_;
255 };
256
CopiesExist(const std::vector<std::vector<uint8_t>> & bufs)257 bool CopiesExist(const std::vector<std::vector<uint8_t> >& bufs) {
258 // Sort the indices of |bufs| into a separate vector. This reduces the amount
259 // of data copied versus sorting |bufs| directly.
260 std::vector<size_t> sorted_indices(bufs.size());
261 for (size_t i = 0; i < sorted_indices.size(); ++i)
262 sorted_indices[i] = i;
263 std::sort(
264 sorted_indices.begin(), sorted_indices.end(), CompareUsingIndex(&bufs));
265
266 // Scan for adjacent duplicates.
267 for (size_t i = 1; i < sorted_indices.size(); ++i) {
268 if (bufs[sorted_indices[i]] == bufs[sorted_indices[i - 1]])
269 return true;
270 }
271 return false;
272 }
273
CreateAesKeyGenAlgorithm(blink::WebCryptoAlgorithmId aes_alg_id,unsigned short length)274 blink::WebCryptoAlgorithm CreateAesKeyGenAlgorithm(
275 blink::WebCryptoAlgorithmId aes_alg_id,
276 unsigned short length) {
277 return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
278 aes_alg_id, new blink::WebCryptoAesKeyGenParams(length));
279 }
280
281 // The following key pair is comprised of the SPKI (public key) and PKCS#8
282 // (private key) representations of the key pair provided in Example 1 of the
283 // NIST test vectors at
284 // ftp://ftp.rsa.com/pub/rsalabs/tmp/pkcs1v15sign-vectors.txt
285 const unsigned int kModulusLengthBits = 1024;
286 const char* const kPublicKeySpkiDerHex =
287 "30819f300d06092a864886f70d010101050003818d0030818902818100a5"
288 "6e4a0e701017589a5187dc7ea841d156f2ec0e36ad52a44dfeb1e61f7ad9"
289 "91d8c51056ffedb162b4c0f283a12a88a394dff526ab7291cbb307ceabfc"
290 "e0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921cb23c270a70e2598e"
291 "6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef22e1e1f20d0ce8cf"
292 "fb2249bd9a21370203010001";
293 const char* const kPrivateKeyPkcs8DerHex =
294 "30820275020100300d06092a864886f70d01010105000482025f3082025b"
295 "02010002818100a56e4a0e701017589a5187dc7ea841d156f2ec0e36ad52"
296 "a44dfeb1e61f7ad991d8c51056ffedb162b4c0f283a12a88a394dff526ab"
297 "7291cbb307ceabfce0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921c"
298 "b23c270a70e2598e6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef"
299 "22e1e1f20d0ce8cffb2249bd9a2137020301000102818033a5042a90b27d"
300 "4f5451ca9bbbd0b44771a101af884340aef9885f2a4bbe92e894a724ac3c"
301 "568c8f97853ad07c0266c8c6a3ca0929f1e8f11231884429fc4d9ae55fee"
302 "896a10ce707c3ed7e734e44727a39574501a532683109c2abacaba283c31"
303 "b4bd2f53c3ee37e352cee34f9e503bd80c0622ad79c6dcee883547c6a3b3"
304 "25024100e7e8942720a877517273a356053ea2a1bc0c94aa72d55c6e8629"
305 "6b2dfc967948c0a72cbccca7eacb35706e09a1df55a1535bd9b3cc34160b"
306 "3b6dcd3eda8e6443024100b69dca1cf7d4d7ec81e75b90fcca874abcde12"
307 "3fd2700180aa90479b6e48de8d67ed24f9f19d85ba275874f542cd20dc72"
308 "3e6963364a1f9425452b269a6799fd024028fa13938655be1f8a159cbaca"
309 "5a72ea190c30089e19cd274a556f36c4f6e19f554b34c077790427bbdd8d"
310 "d3ede2448328f385d81b30e8e43b2fffa02786197902401a8b38f398fa71"
311 "2049898d7fb79ee0a77668791299cdfa09efc0e507acb21ed74301ef5bfd"
312 "48be455eaeb6e1678255827580a8e4e8e14151d1510a82a3f2e729024027"
313 "156aba4126d24a81f3a528cbfb27f56886f840a9f6e86e17a44b94fe9319"
314 "584b8e22fdde1e5a2e3bd8aa5ba8d8584194eb2190acf832b847f13a3d24"
315 "a79f4d";
316 // The modulus and exponent (in hex) of kPublicKeySpkiDerHex
317 const char* const kPublicKeyModulusHex =
318 "A56E4A0E701017589A5187DC7EA841D156F2EC0E36AD52A44DFEB1E61F7AD991D8C51056"
319 "FFEDB162B4C0F283A12A88A394DFF526AB7291CBB307CEABFCE0B1DFD5CD9508096D5B2B"
320 "8B6DF5D671EF6377C0921CB23C270A70E2598E6FF89D19F105ACC2D3F0CB35F29280E138"
321 "6B6F64C4EF22E1E1F20D0CE8CFFB2249BD9A2137";
322 const char* const kPublicKeyExponentHex = "010001";
323
ImportSecretKeyFromRaw(const std::vector<uint8_t> & key_raw,const blink::WebCryptoAlgorithm & algorithm,blink::WebCryptoKeyUsageMask usage)324 blink::WebCryptoKey ImportSecretKeyFromRaw(
325 const std::vector<uint8_t>& key_raw,
326 const blink::WebCryptoAlgorithm& algorithm,
327 blink::WebCryptoKeyUsageMask usage) {
328 blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
329 bool extractable = true;
330 EXPECT_EQ(Status::Success(),
331 ImportKey(blink::WebCryptoKeyFormatRaw,
332 CryptoData(key_raw),
333 algorithm,
334 extractable,
335 usage,
336 &key));
337
338 EXPECT_FALSE(key.isNull());
339 EXPECT_TRUE(key.handle());
340 EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
341 EXPECT_EQ(algorithm.id(), key.algorithm().id());
342 EXPECT_EQ(extractable, key.extractable());
343 EXPECT_EQ(usage, key.usages());
344 return key;
345 }
346
ImportRsaKeyPair(const std::vector<uint8_t> & spki_der,const std::vector<uint8_t> & pkcs8_der,const blink::WebCryptoAlgorithm & algorithm,bool extractable,blink::WebCryptoKeyUsageMask public_key_usage_mask,blink::WebCryptoKeyUsageMask private_key_usage_mask,blink::WebCryptoKey * public_key,blink::WebCryptoKey * private_key)347 void ImportRsaKeyPair(const std::vector<uint8_t>& spki_der,
348 const std::vector<uint8_t>& pkcs8_der,
349 const blink::WebCryptoAlgorithm& algorithm,
350 bool extractable,
351 blink::WebCryptoKeyUsageMask public_key_usage_mask,
352 blink::WebCryptoKeyUsageMask private_key_usage_mask,
353 blink::WebCryptoKey* public_key,
354 blink::WebCryptoKey* private_key) {
355 ASSERT_EQ(Status::Success(),
356 ImportKey(blink::WebCryptoKeyFormatSpki,
357 CryptoData(spki_der),
358 algorithm,
359 true,
360 public_key_usage_mask,
361 public_key));
362 EXPECT_FALSE(public_key->isNull());
363 EXPECT_TRUE(public_key->handle());
364 EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key->type());
365 EXPECT_EQ(algorithm.id(), public_key->algorithm().id());
366 EXPECT_TRUE(public_key->extractable());
367 EXPECT_EQ(public_key_usage_mask, public_key->usages());
368
369 ASSERT_EQ(Status::Success(),
370 ImportKey(blink::WebCryptoKeyFormatPkcs8,
371 CryptoData(pkcs8_der),
372 algorithm,
373 extractable,
374 private_key_usage_mask,
375 private_key));
376 EXPECT_FALSE(private_key->isNull());
377 EXPECT_TRUE(private_key->handle());
378 EXPECT_EQ(blink::WebCryptoKeyTypePrivate, private_key->type());
379 EXPECT_EQ(algorithm.id(), private_key->algorithm().id());
380 EXPECT_EQ(extractable, private_key->extractable());
381 EXPECT_EQ(private_key_usage_mask, private_key->usages());
382 }
383
ImportKeyJwkFromDict(const base::DictionaryValue & dict,const blink::WebCryptoAlgorithm & algorithm,bool extractable,blink::WebCryptoKeyUsageMask usage_mask,blink::WebCryptoKey * key)384 Status ImportKeyJwkFromDict(const base::DictionaryValue& dict,
385 const blink::WebCryptoAlgorithm& algorithm,
386 bool extractable,
387 blink::WebCryptoKeyUsageMask usage_mask,
388 blink::WebCryptoKey* key) {
389 return ImportKey(blink::WebCryptoKeyFormatJwk,
390 CryptoData(MakeJsonVector(dict)),
391 algorithm,
392 extractable,
393 usage_mask,
394 key);
395 }
396
GetJwkDictionary(const std::vector<uint8_t> & json)397 scoped_ptr<base::DictionaryValue> GetJwkDictionary(
398 const std::vector<uint8_t>& json) {
399 base::StringPiece json_string(
400 reinterpret_cast<const char*>(vector_as_array(&json)), json.size());
401 base::Value* value = base::JSONReader::Read(json_string);
402 EXPECT_TRUE(value);
403 base::DictionaryValue* dict_value = NULL;
404 value->GetAsDictionary(&dict_value);
405 return scoped_ptr<base::DictionaryValue>(dict_value);
406 }
407
408 // Verifies the input dictionary contains the expected values. Exact matches are
409 // required on the fields examined.
VerifyJwk(const scoped_ptr<base::DictionaryValue> & dict,const std::string & kty_expected,const std::string & alg_expected,blink::WebCryptoKeyUsageMask use_mask_expected)410 ::testing::AssertionResult VerifyJwk(
411 const scoped_ptr<base::DictionaryValue>& dict,
412 const std::string& kty_expected,
413 const std::string& alg_expected,
414 blink::WebCryptoKeyUsageMask use_mask_expected) {
415 // ---- kty
416 std::string value_string;
417 if (!dict->GetString("kty", &value_string))
418 return ::testing::AssertionFailure() << "Missing 'kty'";
419 if (value_string != kty_expected)
420 return ::testing::AssertionFailure() << "Expected 'kty' to be "
421 << kty_expected << "but found "
422 << value_string;
423
424 // ---- alg
425 if (!dict->GetString("alg", &value_string))
426 return ::testing::AssertionFailure() << "Missing 'alg'";
427 if (value_string != alg_expected)
428 return ::testing::AssertionFailure() << "Expected 'alg' to be "
429 << alg_expected << " but found "
430 << value_string;
431
432 // ---- ext
433 // always expect ext == true in this case
434 bool ext_value;
435 if (!dict->GetBoolean("ext", &ext_value))
436 return ::testing::AssertionFailure() << "Missing 'ext'";
437 if (!ext_value)
438 return ::testing::AssertionFailure()
439 << "Expected 'ext' to be true but found false";
440
441 // ---- key_ops
442 base::ListValue* key_ops;
443 if (!dict->GetList("key_ops", &key_ops))
444 return ::testing::AssertionFailure() << "Missing 'key_ops'";
445 blink::WebCryptoKeyUsageMask key_ops_mask = 0;
446 Status status = GetWebCryptoUsagesFromJwkKeyOps(key_ops, &key_ops_mask);
447 if (status.IsError())
448 return ::testing::AssertionFailure() << "Failure extracting 'key_ops'";
449 if (key_ops_mask != use_mask_expected)
450 return ::testing::AssertionFailure()
451 << "Expected 'key_ops' mask to be " << use_mask_expected
452 << " but found " << key_ops_mask << " (" << value_string << ")";
453
454 return ::testing::AssertionSuccess();
455 }
456
VerifySecretJwk(const std::vector<uint8_t> & json,const std::string & alg_expected,const std::string & k_expected_hex,blink::WebCryptoKeyUsageMask use_mask_expected)457 ::testing::AssertionResult VerifySecretJwk(
458 const std::vector<uint8_t>& json,
459 const std::string& alg_expected,
460 const std::string& k_expected_hex,
461 blink::WebCryptoKeyUsageMask use_mask_expected) {
462 scoped_ptr<base::DictionaryValue> dict = GetJwkDictionary(json);
463 if (!dict.get() || dict->empty())
464 return ::testing::AssertionFailure() << "JSON parsing failed";
465
466 // ---- k
467 std::string value_string;
468 if (!dict->GetString("k", &value_string))
469 return ::testing::AssertionFailure() << "Missing 'k'";
470 std::string k_value;
471 if (!Base64DecodeUrlSafe(value_string, &k_value))
472 return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(k) failed";
473 if (!LowerCaseEqualsASCII(base::HexEncode(k_value.data(), k_value.size()),
474 k_expected_hex.c_str())) {
475 return ::testing::AssertionFailure() << "Expected 'k' to be "
476 << k_expected_hex
477 << " but found something different";
478 }
479
480 return VerifyJwk(dict, "oct", alg_expected, use_mask_expected);
481 }
482
VerifyPublicJwk(const std::vector<uint8_t> & json,const std::string & alg_expected,const std::string & n_expected_hex,const std::string & e_expected_hex,blink::WebCryptoKeyUsageMask use_mask_expected)483 ::testing::AssertionResult VerifyPublicJwk(
484 const std::vector<uint8_t>& json,
485 const std::string& alg_expected,
486 const std::string& n_expected_hex,
487 const std::string& e_expected_hex,
488 blink::WebCryptoKeyUsageMask use_mask_expected) {
489 scoped_ptr<base::DictionaryValue> dict = GetJwkDictionary(json);
490 if (!dict.get() || dict->empty())
491 return ::testing::AssertionFailure() << "JSON parsing failed";
492
493 // ---- n
494 std::string value_string;
495 if (!dict->GetString("n", &value_string))
496 return ::testing::AssertionFailure() << "Missing 'n'";
497 std::string n_value;
498 if (!Base64DecodeUrlSafe(value_string, &n_value))
499 return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(n) failed";
500 if (base::HexEncode(n_value.data(), n_value.size()) != n_expected_hex) {
501 return ::testing::AssertionFailure() << "'n' does not match the expected "
502 "value";
503 }
504 // TODO(padolph): LowerCaseEqualsASCII() does not work for above!
505
506 // ---- e
507 if (!dict->GetString("e", &value_string))
508 return ::testing::AssertionFailure() << "Missing 'e'";
509 std::string e_value;
510 if (!Base64DecodeUrlSafe(value_string, &e_value))
511 return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(e) failed";
512 if (!LowerCaseEqualsASCII(base::HexEncode(e_value.data(), e_value.size()),
513 e_expected_hex.c_str())) {
514 return ::testing::AssertionFailure() << "Expected 'e' to be "
515 << e_expected_hex
516 << " but found something different";
517 }
518
519 return VerifyJwk(dict, "RSA", alg_expected, use_mask_expected);
520 }
521
ImportExportJwkSymmetricKey(int key_len_bits,const blink::WebCryptoAlgorithm & import_algorithm,blink::WebCryptoKeyUsageMask usages,const std::string & jwk_alg)522 void ImportExportJwkSymmetricKey(
523 int key_len_bits,
524 const blink::WebCryptoAlgorithm& import_algorithm,
525 blink::WebCryptoKeyUsageMask usages,
526 const std::string& jwk_alg) {
527 std::vector<uint8_t> json;
528 std::string key_hex;
529
530 // Hardcoded pseudo-random bytes to use for keys of different lengths.
531 switch (key_len_bits) {
532 case 128:
533 key_hex = "3f1e7cd4f6f8543f6b1e16002e688623";
534 break;
535 case 256:
536 key_hex =
537 "bd08286b81a74783fd1ccf46b7e05af84ee25ae021210074159e0c4d9d907692";
538 break;
539 case 384:
540 key_hex =
541 "a22c5441c8b185602283d64c7221de1d0951e706bfc09539435ec0e0ed614e1d40"
542 "6623f2b31d31819fec30993380dd82";
543 break;
544 case 512:
545 key_hex =
546 "5834f639000d4cf82de124fbfd26fb88d463e99f839a76ba41ac88967c80a3f61e"
547 "1239a452e573dba0750e988152988576efd75b8d0229b7aca2ada2afd392ee";
548 break;
549 default:
550 FAIL() << "Unexpected key_len_bits" << key_len_bits;
551 }
552
553 // Import a raw key.
554 blink::WebCryptoKey key = ImportSecretKeyFromRaw(
555 HexStringToBytes(key_hex), import_algorithm, usages);
556
557 // Export the key in JWK format and validate.
558 ASSERT_EQ(Status::Success(),
559 ExportKey(blink::WebCryptoKeyFormatJwk, key, &json));
560 EXPECT_TRUE(VerifySecretJwk(json, jwk_alg, key_hex, usages));
561
562 // Import the JWK-formatted key.
563 ASSERT_EQ(Status::Success(),
564 ImportKey(blink::WebCryptoKeyFormatJwk,
565 CryptoData(json),
566 import_algorithm,
567 true,
568 usages,
569 &key));
570 EXPECT_TRUE(key.handle());
571 EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
572 EXPECT_EQ(import_algorithm.id(), key.algorithm().id());
573 EXPECT_EQ(true, key.extractable());
574 EXPECT_EQ(usages, key.usages());
575
576 // Export the key in raw format and compare to the original.
577 std::vector<uint8_t> key_raw_out;
578 ASSERT_EQ(Status::Success(),
579 ExportKey(blink::WebCryptoKeyFormatRaw, key, &key_raw_out));
580 EXPECT_BYTES_EQ_HEX(key_hex, key_raw_out);
581 }
582
583 } // namespace webcrypto
584
585 } // namesapce content
586