content/child/webcrypto/test/test_helpers.cc

   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/generate_key_result.h"
  21 #include "content/child/webcrypto/jwk.h"
  22 #include "content/child/webcrypto/status.h"
  23 #include "content/child/webcrypto/webcrypto_util.h"
  24 #include "content/public/common/content_paths.h"
  25 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
  26 #include "third_party/WebKit/public/platform/WebCryptoKeyAlgorithm.h"
  27 #include "third_party/re2/re2/re2.h"
  28
  29 #if !defined(USE_OPENSSL)
  30 #include <nss.h>
  31 #include <pk11pub.h>
  32
  33 #include "crypto/nss_util.h"
  34 #include "crypto/scoped_nss_types.h"
  35 #endif
  36
  37 namespace content {
  38
  39 namespace webcrypto {
  40
  41 void PrintTo(const Status& status, ::std::ostream* os) {
  42   if (status.IsSuccess())
  43     *os << "Success";
  44   else
  45     *os << "Error type: " << status.error_type()
  46         << " Error details: " << status.error_details();
  47 }
  48
  49 bool operator==(const Status& a, const Status& b) {
  50   if (a.IsSuccess() != b.IsSuccess())
  51     return false;
  52   if (a.IsSuccess())
  53     return true;
  54   return a.error_type() == b.error_type() &&
  55          a.error_details() == b.error_details();
  56 }
  57
  58 bool operator!=(const Status& a, const Status& b) {
  59   return !(a == b);
  60 }
  61
  62 void PrintTo(const CryptoData& data, ::std::ostream* os) {
  63   *os << "[" << base::HexEncode(data.bytes(), data.byte_length()) << "]";
  64 }
  65
  66 bool operator==(const CryptoData& a, const CryptoData& b) {
  67   return a.byte_length() == b.byte_length() &&
  68          memcmp(a.bytes(), b.bytes(), a.byte_length()) == 0;
  69 }
  70
  71 bool operator!=(const CryptoData& a, const CryptoData& b) {
  72   return !(a == b);
  73 }
  74
  75 bool SupportsAesGcm() {
  76   std::vector<uint8_t> key_raw(16, 0);
  77
  78   blink::WebCryptoKey key;
  79   Status status = ImportKey(blink::WebCryptoKeyFormatRaw,
  80                             CryptoData(key_raw),
  81                             CreateAlgorithm(blink::WebCryptoAlgorithmIdAesGcm),
  82                             true,
  83                             blink::WebCryptoKeyUsageEncrypt,
  84                             &key);
  85
  86   if (status.IsError())
  87     EXPECT_EQ(blink::WebCryptoErrorTypeNotSupported, status.error_type());
  88   return status.IsSuccess();
  89 }
  90
  91 bool SupportsRsaOaep() {
  92 #if defined(USE_OPENSSL)
  93   return true;
  94 #else
  95   crypto::EnsureNSSInit();
  96   // TODO(eroman): Exclude version test for OS_CHROMEOS
  97 #if defined(USE_NSS)
  98   if (!NSS_VersionCheck("3.16.2"))
  99     return false;
 100 #endif
 101   crypto::ScopedPK11Slot slot(PK11_GetInternalKeySlot());
 102   return !!PK11_DoesMechanism(slot.get(), CKM_RSA_PKCS_OAEP);
 103 #endif
 104 }
 105
 106 bool SupportsRsaPrivateKeyImport() {
 107 // TODO(eroman): Exclude version test for OS_CHROMEOS
 108 #if defined(USE_NSS)
 109   crypto::EnsureNSSInit();
 110   if (!NSS_VersionCheck("3.16.2")) {
 111     LOG(WARNING) << "RSA key import is not supported by this version of NSS. "
 112                     "Skipping some tests";
 113     return false;
 114   }
 115 #endif
 116   return true;
 117 }
 118
 119 blink::WebCryptoAlgorithm CreateRsaHashedKeyGenAlgorithm(
 120     blink::WebCryptoAlgorithmId algorithm_id,
 121     const blink::WebCryptoAlgorithmId hash_id,
 122     unsigned int modulus_length,
 123     const std::vector<uint8_t>& public_exponent) {
 124   DCHECK(blink::WebCryptoAlgorithm::isHash(hash_id));
 125   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
 126       algorithm_id,
 127       new blink::WebCryptoRsaHashedKeyGenParams(
 128           CreateAlgorithm(hash_id),
 129           modulus_length,
 130           vector_as_array(&public_exponent),
 131           public_exponent.size()));
 132 }
 133
 134 std::vector<uint8_t> Corrupted(const std::vector<uint8_t>& input) {
 135   std::vector<uint8_t> corrupted_data(input);
 136   if (corrupted_data.empty())
 137     corrupted_data.push_back(0);
 138   corrupted_data[corrupted_data.size() / 2] ^= 0x01;
 139   return corrupted_data;
 140 }
 141
 142 std::vector<uint8_t> HexStringToBytes(const std::string& hex) {
 143   std::vector<uint8_t> bytes;
 144   base::HexStringToBytes(hex, &bytes);
 145   return bytes;
 146 }
 147
 148 std::vector<uint8_t> MakeJsonVector(const std::string& json_string) {
 149   return std::vector<uint8_t>(json_string.begin(), json_string.end());
 150 }
 151
 152 std::vector<uint8_t> MakeJsonVector(const base::DictionaryValue& dict) {
 153   std::string json;
 154   base::JSONWriter::Write(&dict, &json);
 155   return MakeJsonVector(json);
 156 }
 157
 158 ::testing::AssertionResult ReadJsonTestFile(const char* test_file_name,
 159                                             scoped_ptr<base::Value>* value) {
 160   base::FilePath test_data_dir;
 161   if (!PathService::Get(DIR_TEST_DATA, &test_data_dir))
 162     return ::testing::AssertionFailure() << "Couldn't retrieve test dir";
 163
 164   base::FilePath file_path =
 165       test_data_dir.AppendASCII("webcrypto").AppendASCII(test_file_name);
 166
 167   std::string file_contents;
 168   if (!base::ReadFileToString(file_path, &file_contents)) {
 169     return ::testing::AssertionFailure()
 170            << "Couldn't read test file: " << file_path.value();
 171   }
 172
 173   // Strip C++ style comments out of the "json" file, otherwise it cannot be
 174   // parsed.
 175   re2::RE2::GlobalReplace(&file_contents, re2::RE2("\\s*//.*"), "");
 176
 177   // Parse the JSON to a dictionary.
 178   value->reset(base::JSONReader::Read(file_contents));
 179   if (!value->get()) {
 180     return ::testing::AssertionFailure()
 181            << "Couldn't parse test file JSON: " << file_path.value();
 182   }
 183
 184   return ::testing::AssertionSuccess();
 185 }
 186
 187 ::testing::AssertionResult ReadJsonTestFileToList(
 188     const char* test_file_name,
 189     scoped_ptr<base::ListValue>* list) {
 190   // Read the JSON.
 191   scoped_ptr<base::Value> json;
 192   ::testing::AssertionResult result = ReadJsonTestFile(test_file_name, &json);
 193   if (!result)
 194     return result;
 195
 196   // Cast to an ListValue.
 197   base::ListValue* list_value = NULL;
 198   if (!json->GetAsList(&list_value) || !list_value)
 199     return ::testing::AssertionFailure() << "The JSON was not a list";
 200
 201   list->reset(list_value);
 202   ignore_result(json.release());
 203
 204   return ::testing::AssertionSuccess();
 205 }
 206
 207 ::testing::AssertionResult ReadJsonTestFileToDictionary(
 208     const char* test_file_name,
 209     scoped_ptr<base::DictionaryValue>* dict) {
 210   // Read the JSON.
 211   scoped_ptr<base::Value> json;
 212   ::testing::AssertionResult result = ReadJsonTestFile(test_file_name, &json);
 213   if (!result)
 214     return result;
 215
 216   // Cast to an DictionaryValue.
 217   base::DictionaryValue* dict_value = NULL;
 218   if (!json->GetAsDictionary(&dict_value) || !dict_value)
 219     return ::testing::AssertionFailure() << "The JSON was not a dictionary";
 220
 221   dict->reset(dict_value);
 222   ignore_result(json.release());
 223
 224   return ::testing::AssertionSuccess();
 225 }
 226
 227 std::vector<uint8_t> GetBytesFromHexString(const base::DictionaryValue* dict,
 228                                            const std::string& property_name) {
 229   std::string hex_string;
 230   if (!dict->GetString(property_name, &hex_string)) {
 231     EXPECT_TRUE(false) << "Couldn't get string property: " << property_name;
 232     return std::vector<uint8_t>();
 233   }
 234
 235   return HexStringToBytes(hex_string);
 236 }
 237
 238 blink::WebCryptoAlgorithm GetDigestAlgorithm(const base::DictionaryValue* dict,
 239                                              const char* property_name) {
 240   std::string algorithm_name;
 241   if (!dict->GetString(property_name, &algorithm_name)) {
 242     EXPECT_TRUE(false) << "Couldn't get string property: " << property_name;
 243     return blink::WebCryptoAlgorithm::createNull();
 244   }
 245
 246   struct {
 247     const char* name;
 248     blink::WebCryptoAlgorithmId id;
 249   } kDigestNameToId[] = {
 250         {"sha-1", blink::WebCryptoAlgorithmIdSha1},
 251         {"sha-256", blink::WebCryptoAlgorithmIdSha256},
 252         {"sha-384", blink::WebCryptoAlgorithmIdSha384},
 253         {"sha-512", blink::WebCryptoAlgorithmIdSha512},
 254     };
 255
 256   for (size_t i = 0; i < arraysize(kDigestNameToId); ++i) {
 257     if (kDigestNameToId[i].name == algorithm_name)
 258       return CreateAlgorithm(kDigestNameToId[i].id);
 259   }
 260
 261   return blink::WebCryptoAlgorithm::createNull();
 262 }
 263
 264 // Creates a comparator for |bufs| which operates on indices rather than values.
 265 class CompareUsingIndex {
 266  public:
 267   explicit CompareUsingIndex(const std::vector<std::vector<uint8_t> >* bufs)
 268       : bufs_(bufs) {}
 269
 270   bool operator()(size_t i1, size_t i2) { return (*bufs_)[i1] < (*bufs_)[i2]; }
 271
 272  private:
 273   const std::vector<std::vector<uint8_t> >* bufs_;
 274 };
 275
 276 bool CopiesExist(const std::vector<std::vector<uint8_t> >& bufs) {
 277   // Sort the indices of |bufs| into a separate vector. This reduces the amount
 278   // of data copied versus sorting |bufs| directly.
 279   std::vector<size_t> sorted_indices(bufs.size());
 280   for (size_t i = 0; i < sorted_indices.size(); ++i)
 281     sorted_indices[i] = i;
 282   std::sort(
 283       sorted_indices.begin(), sorted_indices.end(), CompareUsingIndex(&bufs));
 284
 285   // Scan for adjacent duplicates.
 286   for (size_t i = 1; i < sorted_indices.size(); ++i) {
 287     if (bufs[sorted_indices[i]] == bufs[sorted_indices[i - 1]])
 288       return true;
 289   }
 290   return false;
 291 }
 292
 293 blink::WebCryptoAlgorithm CreateAesKeyGenAlgorithm(
 294     blink::WebCryptoAlgorithmId aes_alg_id,
 295     unsigned short length) {
 296   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
 297       aes_alg_id, new blink::WebCryptoAesKeyGenParams(length));
 298 }
 299
 300 // The following key pair is comprised of the SPKI (public key) and PKCS#8
 301 // (private key) representations of the key pair provided in Example 1 of the
 302 // NIST test vectors at
 303 // ftp://ftp.rsa.com/pub/rsalabs/tmp/pkcs1v15sign-vectors.txt
 304 const unsigned int kModulusLengthBits = 1024;
 305 const char* const kPublicKeySpkiDerHex =
 306     "30819f300d06092a864886f70d010101050003818d0030818902818100a5"
 307     "6e4a0e701017589a5187dc7ea841d156f2ec0e36ad52a44dfeb1e61f7ad9"
 308     "91d8c51056ffedb162b4c0f283a12a88a394dff526ab7291cbb307ceabfc"
 309     "e0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921cb23c270a70e2598e"
 310     "6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef22e1e1f20d0ce8cf"
 311     "fb2249bd9a21370203010001";
 312 const char* const kPrivateKeyPkcs8DerHex =
 313     "30820275020100300d06092a864886f70d01010105000482025f3082025b"
 314     "02010002818100a56e4a0e701017589a5187dc7ea841d156f2ec0e36ad52"
 315     "a44dfeb1e61f7ad991d8c51056ffedb162b4c0f283a12a88a394dff526ab"
 316     "7291cbb307ceabfce0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921c"
 317     "b23c270a70e2598e6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef"
 318     "22e1e1f20d0ce8cffb2249bd9a2137020301000102818033a5042a90b27d"
 319     "4f5451ca9bbbd0b44771a101af884340aef9885f2a4bbe92e894a724ac3c"
 320     "568c8f97853ad07c0266c8c6a3ca0929f1e8f11231884429fc4d9ae55fee"
 321     "896a10ce707c3ed7e734e44727a39574501a532683109c2abacaba283c31"
 322     "b4bd2f53c3ee37e352cee34f9e503bd80c0622ad79c6dcee883547c6a3b3"
 323     "25024100e7e8942720a877517273a356053ea2a1bc0c94aa72d55c6e8629"
 324     "6b2dfc967948c0a72cbccca7eacb35706e09a1df55a1535bd9b3cc34160b"
 325     "3b6dcd3eda8e6443024100b69dca1cf7d4d7ec81e75b90fcca874abcde12"
 326     "3fd2700180aa90479b6e48de8d67ed24f9f19d85ba275874f542cd20dc72"
 327     "3e6963364a1f9425452b269a6799fd024028fa13938655be1f8a159cbaca"
 328     "5a72ea190c30089e19cd274a556f36c4f6e19f554b34c077790427bbdd8d"
 329     "d3ede2448328f385d81b30e8e43b2fffa02786197902401a8b38f398fa71"
 330     "2049898d7fb79ee0a77668791299cdfa09efc0e507acb21ed74301ef5bfd"
 331     "48be455eaeb6e1678255827580a8e4e8e14151d1510a82a3f2e729024027"
 332     "156aba4126d24a81f3a528cbfb27f56886f840a9f6e86e17a44b94fe9319"
 333     "584b8e22fdde1e5a2e3bd8aa5ba8d8584194eb2190acf832b847f13a3d24"
 334     "a79f4d";
 335 // The modulus and exponent (in hex) of kPublicKeySpkiDerHex
 336 const char* const kPublicKeyModulusHex =
 337     "A56E4A0E701017589A5187DC7EA841D156F2EC0E36AD52A44DFEB1E61F7AD991D8C51056"
 338     "FFEDB162B4C0F283A12A88A394DFF526AB7291CBB307CEABFCE0B1DFD5CD9508096D5B2B"
 339     "8B6DF5D671EF6377C0921CB23C270A70E2598E6FF89D19F105ACC2D3F0CB35F29280E138"
 340     "6B6F64C4EF22E1E1F20D0CE8CFFB2249BD9A2137";
 341 const char* const kPublicKeyExponentHex = "010001";
 342
 343 blink::WebCryptoKey ImportSecretKeyFromRaw(
 344     const std::vector<uint8_t>& key_raw,
 345     const blink::WebCryptoAlgorithm& algorithm,
 346     blink::WebCryptoKeyUsageMask usage) {
 347   blink::WebCryptoKey key;
 348   bool extractable = true;
 349   EXPECT_EQ(Status::Success(),
 350             ImportKey(blink::WebCryptoKeyFormatRaw,
 351                       CryptoData(key_raw),
 352                       algorithm,
 353                       extractable,
 354                       usage,
 355                       &key));
 356
 357   EXPECT_FALSE(key.isNull());
 358   EXPECT_TRUE(key.handle());
 359   EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
 360   EXPECT_EQ(algorithm.id(), key.algorithm().id());
 361   EXPECT_EQ(extractable, key.extractable());
 362   EXPECT_EQ(usage, key.usages());
 363   return key;
 364 }
 365
 366 void ImportRsaKeyPair(const std::vector<uint8_t>& spki_der,
 367                       const std::vector<uint8_t>& pkcs8_der,
 368                       const blink::WebCryptoAlgorithm& algorithm,
 369                       bool extractable,
 370                       blink::WebCryptoKeyUsageMask public_key_usages,
 371                       blink::WebCryptoKeyUsageMask private_key_usages,
 372                       blink::WebCryptoKey* public_key,
 373                       blink::WebCryptoKey* private_key) {
 374   ASSERT_EQ(Status::Success(),
 375             ImportKey(blink::WebCryptoKeyFormatSpki,
 376                       CryptoData(spki_der),
 377                       algorithm,
 378                       true,
 379                       public_key_usages,
 380                       public_key));
 381   EXPECT_FALSE(public_key->isNull());
 382   EXPECT_TRUE(public_key->handle());
 383   EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key->type());
 384   EXPECT_EQ(algorithm.id(), public_key->algorithm().id());
 385   EXPECT_TRUE(public_key->extractable());
 386   EXPECT_EQ(public_key_usages, public_key->usages());
 387
 388   ASSERT_EQ(Status::Success(),
 389             ImportKey(blink::WebCryptoKeyFormatPkcs8,
 390                       CryptoData(pkcs8_der),
 391                       algorithm,
 392                       extractable,
 393                       private_key_usages,
 394                       private_key));
 395   EXPECT_FALSE(private_key->isNull());
 396   EXPECT_TRUE(private_key->handle());
 397   EXPECT_EQ(blink::WebCryptoKeyTypePrivate, private_key->type());
 398   EXPECT_EQ(algorithm.id(), private_key->algorithm().id());
 399   EXPECT_EQ(extractable, private_key->extractable());
 400   EXPECT_EQ(private_key_usages, private_key->usages());
 401 }
 402
 403 Status ImportKeyJwkFromDict(const base::DictionaryValue& dict,
 404                             const blink::WebCryptoAlgorithm& algorithm,
 405                             bool extractable,
 406                             blink::WebCryptoKeyUsageMask usages,
 407                             blink::WebCryptoKey* key) {
 408   return ImportKey(blink::WebCryptoKeyFormatJwk,
 409                    CryptoData(MakeJsonVector(dict)),
 410                    algorithm,
 411                    extractable,
 412                    usages,
 413                    key);
 414 }
 415
 416 scoped_ptr<base::DictionaryValue> GetJwkDictionary(
 417     const std::vector<uint8_t>& json) {
 418   base::StringPiece json_string(
 419       reinterpret_cast<const char*>(vector_as_array(&json)), json.size());
 420   base::Value* value = base::JSONReader::Read(json_string);
 421   EXPECT_TRUE(value);
 422   base::DictionaryValue* dict_value = NULL;
 423   value->GetAsDictionary(&dict_value);
 424   return scoped_ptr<base::DictionaryValue>(dict_value);
 425 }
 426
 427 // Verifies the input dictionary contains the expected values. Exact matches are
 428 // required on the fields examined.
 429 ::testing::AssertionResult VerifyJwk(
 430     const scoped_ptr<base::DictionaryValue>& dict,
 431     const std::string& kty_expected,
 432     const std::string& alg_expected,
 433     blink::WebCryptoKeyUsageMask use_mask_expected) {
 434   // ---- kty
 435   std::string value_string;
 436   if (!dict->GetString("kty", &value_string))
 437     return ::testing::AssertionFailure() << "Missing 'kty'";
 438   if (value_string != kty_expected)
 439     return ::testing::AssertionFailure() << "Expected 'kty' to be "
 440                                          << kty_expected << "but found "
 441                                          << value_string;
 442
 443   // ---- alg
 444   if (!dict->GetString("alg", &value_string))
 445     return ::testing::AssertionFailure() << "Missing 'alg'";
 446   if (value_string != alg_expected)
 447     return ::testing::AssertionFailure() << "Expected 'alg' to be "
 448                                          << alg_expected << " but found "
 449                                          << value_string;
 450
 451   // ---- ext
 452   // always expect ext == true in this case
 453   bool ext_value;
 454   if (!dict->GetBoolean("ext", &ext_value))
 455     return ::testing::AssertionFailure() << "Missing 'ext'";
 456   if (!ext_value)
 457     return ::testing::AssertionFailure()
 458            << "Expected 'ext' to be true but found false";
 459
 460   // ---- key_ops
 461   base::ListValue* key_ops;
 462   if (!dict->GetList("key_ops", &key_ops))
 463     return ::testing::AssertionFailure() << "Missing 'key_ops'";
 464   blink::WebCryptoKeyUsageMask key_ops_mask = 0;
 465   Status status = GetWebCryptoUsagesFromJwkKeyOps(key_ops, &key_ops_mask);
 466   if (status.IsError())
 467     return ::testing::AssertionFailure() << "Failure extracting 'key_ops'";
 468   if (key_ops_mask != use_mask_expected)
 469     return ::testing::AssertionFailure()
 470            << "Expected 'key_ops' mask to be " << use_mask_expected
 471            << " but found " << key_ops_mask << " (" << value_string << ")";
 472
 473   return ::testing::AssertionSuccess();
 474 }
 475
 476 ::testing::AssertionResult VerifySecretJwk(
 477     const std::vector<uint8_t>& json,
 478     const std::string& alg_expected,
 479     const std::string& k_expected_hex,
 480     blink::WebCryptoKeyUsageMask use_mask_expected) {
 481   scoped_ptr<base::DictionaryValue> dict = GetJwkDictionary(json);
 482   if (!dict.get() || dict->empty())
 483     return ::testing::AssertionFailure() << "JSON parsing failed";
 484
 485   // ---- k
 486   std::string value_string;
 487   if (!dict->GetString("k", &value_string))
 488     return ::testing::AssertionFailure() << "Missing 'k'";
 489   std::string k_value;
 490   if (!Base64DecodeUrlSafe(value_string, &k_value))
 491     return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(k) failed";
 492   if (!LowerCaseEqualsASCII(base::HexEncode(k_value.data(), k_value.size()),
 493                             k_expected_hex.c_str())) {
 494     return ::testing::AssertionFailure() << "Expected 'k' to be "
 495                                          << k_expected_hex
 496                                          << " but found something different";
 497   }
 498
 499   return VerifyJwk(dict, "oct", alg_expected, use_mask_expected);
 500 }
 501
 502 ::testing::AssertionResult VerifyPublicJwk(
 503     const std::vector<uint8_t>& json,
 504     const std::string& alg_expected,
 505     const std::string& n_expected_hex,
 506     const std::string& e_expected_hex,
 507     blink::WebCryptoKeyUsageMask use_mask_expected) {
 508   scoped_ptr<base::DictionaryValue> dict = GetJwkDictionary(json);
 509   if (!dict.get() || dict->empty())
 510     return ::testing::AssertionFailure() << "JSON parsing failed";
 511
 512   // ---- n
 513   std::string value_string;
 514   if (!dict->GetString("n", &value_string))
 515     return ::testing::AssertionFailure() << "Missing 'n'";
 516   std::string n_value;
 517   if (!Base64DecodeUrlSafe(value_string, &n_value))
 518     return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(n) failed";
 519   if (base::HexEncode(n_value.data(), n_value.size()) != n_expected_hex) {
 520     return ::testing::AssertionFailure() << "'n' does not match the expected "
 521                                             "value";
 522   }
 523   // TODO(padolph): LowerCaseEqualsASCII() does not work for above!
 524
 525   // ---- e
 526   if (!dict->GetString("e", &value_string))
 527     return ::testing::AssertionFailure() << "Missing 'e'";
 528   std::string e_value;
 529   if (!Base64DecodeUrlSafe(value_string, &e_value))
 530     return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(e) failed";
 531   if (!LowerCaseEqualsASCII(base::HexEncode(e_value.data(), e_value.size()),
 532                             e_expected_hex.c_str())) {
 533     return ::testing::AssertionFailure() << "Expected 'e' to be "
 534                                          << e_expected_hex
 535                                          << " but found something different";
 536   }
 537
 538   return VerifyJwk(dict, "RSA", alg_expected, use_mask_expected);
 539 }
 540
 541 void ImportExportJwkSymmetricKey(
 542     int key_len_bits,
 543     const blink::WebCryptoAlgorithm& import_algorithm,
 544     blink::WebCryptoKeyUsageMask usages,
 545     const std::string& jwk_alg) {
 546   std::vector<uint8_t> json;
 547   std::string key_hex;
 548
 549   // Hardcoded pseudo-random bytes to use for keys of different lengths.
 550   switch (key_len_bits) {
 551     case 128:
 552       key_hex = "3f1e7cd4f6f8543f6b1e16002e688623";
 553       break;
 554     case 256:
 555       key_hex =
 556           "bd08286b81a74783fd1ccf46b7e05af84ee25ae021210074159e0c4d9d907692";
 557       break;
 558     case 384:
 559       key_hex =
 560           "a22c5441c8b185602283d64c7221de1d0951e706bfc09539435ec0e0ed614e1d40"
 561           "6623f2b31d31819fec30993380dd82";
 562       break;
 563     case 512:
 564       key_hex =
 565           "5834f639000d4cf82de124fbfd26fb88d463e99f839a76ba41ac88967c80a3f61e"
 566           "1239a452e573dba0750e988152988576efd75b8d0229b7aca2ada2afd392ee";
 567       break;
 568     default:
 569       FAIL() << "Unexpected key_len_bits" << key_len_bits;
 570   }
 571
 572   // Import a raw key.
 573   blink::WebCryptoKey key = ImportSecretKeyFromRaw(
 574       HexStringToBytes(key_hex), import_algorithm, usages);
 575
 576   // Export the key in JWK format and validate.
 577   ASSERT_EQ(Status::Success(),
 578             ExportKey(blink::WebCryptoKeyFormatJwk, key, &json));
 579   EXPECT_TRUE(VerifySecretJwk(json, jwk_alg, key_hex, usages));
 580
 581   // Import the JWK-formatted key.
 582   ASSERT_EQ(Status::Success(),
 583             ImportKey(blink::WebCryptoKeyFormatJwk,
 584                       CryptoData(json),
 585                       import_algorithm,
 586                       true,
 587                       usages,
 588                       &key));
 589   EXPECT_TRUE(key.handle());
 590   EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
 591   EXPECT_EQ(import_algorithm.id(), key.algorithm().id());
 592   EXPECT_EQ(true, key.extractable());
 593   EXPECT_EQ(usages, key.usages());
 594
 595   // Export the key in raw format and compare to the original.
 596   std::vector<uint8_t> key_raw_out;
 597   ASSERT_EQ(Status::Success(),
 598             ExportKey(blink::WebCryptoKeyFormatRaw, key, &key_raw_out));
 599   EXPECT_BYTES_EQ_HEX(key_hex, key_raw_out);
 600 }
 601
 602 Status GenerateSecretKey(const blink::WebCryptoAlgorithm& algorithm,
 603                          bool extractable,
 604                          blink::WebCryptoKeyUsageMask usages,
 605                          blink::WebCryptoKey* key) {
 606   GenerateKeyResult result;
 607   Status status = GenerateKey(algorithm, extractable, usages, &result);
 608   if (status.IsError())
 609     return status;
 610
 611   if (result.type() != GenerateKeyResult::TYPE_SECRET_KEY)
 612     return Status::ErrorUnexpected();
 613
 614   *key = result.secret_key();
 615
 616   return Status::Success();
 617 }
 618
 619 Status GenerateKeyPair(const blink::WebCryptoAlgorithm& algorithm,
 620                        bool extractable,
 621                        blink::WebCryptoKeyUsageMask usages,
 622                        blink::WebCryptoKey* public_key,
 623                        blink::WebCryptoKey* private_key) {
 624   GenerateKeyResult result;
 625   Status status = GenerateKey(algorithm, extractable, usages, &result);
 626   if (status.IsError())
 627     return status;
 628
 629   if (result.type() != GenerateKeyResult::TYPE_PUBLIC_PRIVATE_KEY_PAIR)
 630     return Status::ErrorUnexpected();
 631
 632   *public_key = result.public_key();
 633   *private_key = result.private_key();
 634
 635   return Status::Success();
 636 }
 637
 638 }  // namespace webcrypto
 639
 640 }  // namesapce content