components/webcrypto/algorithms/rsa_oaep_unittest.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 "base/logging.h"
   6 #include "base/stl_util.h"
   7 #include "components/webcrypto/algorithm_dispatch.h"
   8 #include "components/webcrypto/algorithms/test_helpers.h"
   9 #include "components/webcrypto/crypto_data.h"
  10 #include "components/webcrypto/jwk.h"
  11 #include "components/webcrypto/status.h"
  12 #include "components/webcrypto/webcrypto_util.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
  15 #include "third_party/WebKit/public/platform/WebCryptoKeyAlgorithm.h"
  16
  17 namespace webcrypto {
  18
  19 namespace {
  20
  21 // Creates an RSA-OAEP algorithm
  22 blink::WebCryptoAlgorithm CreateRsaOaepAlgorithm(
  23     const std::vector<uint8_t>& label) {
  24   return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
  25       blink::WebCryptoAlgorithmIdRsaOaep,
  26       new blink::WebCryptoRsaOaepParams(
  27           !label.empty(), vector_as_array(&label),
  28           static_cast<unsigned int>(label.size())));
  29 }
  30
  31 scoped_ptr<base::DictionaryValue> CreatePublicKeyJwkDict() {
  32   scoped_ptr<base::DictionaryValue> jwk(new base::DictionaryValue());
  33   jwk->SetString("kty", "RSA");
  34   jwk->SetString("n",
  35                  Base64EncodeUrlSafe(HexStringToBytes(kPublicKeyModulusHex)));
  36   jwk->SetString("e",
  37                  Base64EncodeUrlSafe(HexStringToBytes(kPublicKeyExponentHex)));
  38   return jwk.Pass();
  39 }
  40
  41 class WebCryptoRsaOaepTest : public WebCryptoTestBase {};
  42
  43 // Import a PKCS#8 private key that uses RSAPrivateKey with the
  44 // id-rsaEncryption OID.
  45 TEST_F(WebCryptoRsaOaepTest, ImportPkcs8WithRsaEncryption) {
  46   blink::WebCryptoKey private_key;
  47   ASSERT_EQ(Status::Success(),
  48             ImportKey(blink::WebCryptoKeyFormatPkcs8,
  49                       CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
  50                       CreateRsaHashedImportAlgorithm(
  51                           blink::WebCryptoAlgorithmIdRsaOaep,
  52                           blink::WebCryptoAlgorithmIdSha1),
  53                       true, blink::WebCryptoKeyUsageDecrypt, &private_key));
  54 }
  55
  56 TEST_F(WebCryptoRsaOaepTest, ImportPublicJwkWithNoAlg) {
  57   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
  58
  59   blink::WebCryptoKey public_key;
  60   ASSERT_EQ(
  61       Status::Success(),
  62       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
  63                                            blink::WebCryptoAlgorithmIdRsaOaep,
  64                                            blink::WebCryptoAlgorithmIdSha1),
  65                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
  66 }
  67
  68 TEST_F(WebCryptoRsaOaepTest, ImportPublicJwkWithMatchingAlg) {
  69   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
  70   jwk->SetString("alg", "RSA-OAEP");
  71
  72   blink::WebCryptoKey public_key;
  73   ASSERT_EQ(
  74       Status::Success(),
  75       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
  76                                            blink::WebCryptoAlgorithmIdRsaOaep,
  77                                            blink::WebCryptoAlgorithmIdSha1),
  78                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
  79 }
  80
  81 TEST_F(WebCryptoRsaOaepTest, ImportPublicJwkWithMismatchedAlgFails) {
  82   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
  83   jwk->SetString("alg", "RSA-OAEP-512");
  84
  85   blink::WebCryptoKey public_key;
  86   ASSERT_EQ(
  87       Status::ErrorJwkAlgorithmInconsistent(),
  88       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
  89                                            blink::WebCryptoAlgorithmIdRsaOaep,
  90                                            blink::WebCryptoAlgorithmIdSha1),
  91                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
  92 }
  93
  94 TEST_F(WebCryptoRsaOaepTest, ImportPublicJwkWithMismatchedTypeFails) {
  95   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
  96   jwk->SetString("kty", "oct");
  97   jwk->SetString("alg", "RSA-OAEP");
  98
  99   blink::WebCryptoKey public_key;
 100   ASSERT_EQ(
 101       Status::ErrorJwkUnexpectedKty("RSA"),
 102       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
 103                                            blink::WebCryptoAlgorithmIdRsaOaep,
 104                                            blink::WebCryptoAlgorithmIdSha1),
 105                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 106 }
 107
 108 TEST_F(WebCryptoRsaOaepTest, ExportPublicJwk) {
 109   struct TestData {
 110     blink::WebCryptoAlgorithmId hash_alg;
 111     const char* expected_jwk_alg;
 112   } kTestData[] = {{blink::WebCryptoAlgorithmIdSha1, "RSA-OAEP"},
 113                    {blink::WebCryptoAlgorithmIdSha256, "RSA-OAEP-256"},
 114                    {blink::WebCryptoAlgorithmIdSha384, "RSA-OAEP-384"},
 115                    {blink::WebCryptoAlgorithmIdSha512, "RSA-OAEP-512"}};
 116   for (size_t i = 0; i < arraysize(kTestData); ++i) {
 117     const TestData& test_data = kTestData[i];
 118     SCOPED_TRACE(test_data.expected_jwk_alg);
 119
 120     scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 121     jwk->SetString("alg", test_data.expected_jwk_alg);
 122
 123     // Import the key in a known-good format
 124     blink::WebCryptoKey public_key;
 125     ASSERT_EQ(Status::Success(),
 126               ImportKeyJwkFromDict(
 127                   *jwk.get(),
 128                   CreateRsaHashedImportAlgorithm(
 129                       blink::WebCryptoAlgorithmIdRsaOaep, test_data.hash_alg),
 130                   true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 131
 132     // Now export the key as JWK and verify its contents
 133     std::vector<uint8_t> jwk_data;
 134     ASSERT_EQ(Status::Success(),
 135               ExportKey(blink::WebCryptoKeyFormatJwk, public_key, &jwk_data));
 136     EXPECT_TRUE(VerifyPublicJwk(jwk_data, test_data.expected_jwk_alg,
 137                                 kPublicKeyModulusHex, kPublicKeyExponentHex,
 138                                 blink::WebCryptoKeyUsageEncrypt));
 139   }
 140 }
 141
 142 TEST_F(WebCryptoRsaOaepTest, EncryptDecryptKnownAnswerTest) {
 143   scoped_ptr<base::ListValue> tests;
 144   ASSERT_TRUE(ReadJsonTestFileToList("rsa_oaep.json", &tests));
 145
 146   for (size_t test_index = 0; test_index < tests->GetSize(); ++test_index) {
 147     SCOPED_TRACE(test_index);
 148
 149     base::DictionaryValue* test = NULL;
 150     ASSERT_TRUE(tests->GetDictionary(test_index, &test));
 151
 152     blink::WebCryptoAlgorithm digest_algorithm =
 153         GetDigestAlgorithm(test, "hash");
 154     ASSERT_FALSE(digest_algorithm.isNull());
 155     std::vector<uint8_t> public_key_der =
 156         GetBytesFromHexString(test, "public_key");
 157     std::vector<uint8_t> private_key_der =
 158         GetBytesFromHexString(test, "private_key");
 159     std::vector<uint8_t> ciphertext = GetBytesFromHexString(test, "ciphertext");
 160     std::vector<uint8_t> plaintext = GetBytesFromHexString(test, "plaintext");
 161     std::vector<uint8_t> label = GetBytesFromHexString(test, "label");
 162
 163     blink::WebCryptoAlgorithm import_algorithm = CreateRsaHashedImportAlgorithm(
 164         blink::WebCryptoAlgorithmIdRsaOaep, digest_algorithm.id());
 165     blink::WebCryptoKey public_key;
 166     blink::WebCryptoKey private_key;
 167
 168     ASSERT_NO_FATAL_FAILURE(ImportRsaKeyPair(
 169         public_key_der, private_key_der, import_algorithm, false,
 170         blink::WebCryptoKeyUsageEncrypt, blink::WebCryptoKeyUsageDecrypt,
 171         &public_key, &private_key));
 172
 173     blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 174     std::vector<uint8_t> decrypted_data;
 175     ASSERT_EQ(Status::Success(),
 176               Decrypt(op_algorithm, private_key, CryptoData(ciphertext),
 177                       &decrypted_data));
 178     EXPECT_BYTES_EQ(plaintext, decrypted_data);
 179     std::vector<uint8_t> encrypted_data;
 180     ASSERT_EQ(Status::Success(),
 181               Encrypt(op_algorithm, public_key, CryptoData(plaintext),
 182                       &encrypted_data));
 183     std::vector<uint8_t> redecrypted_data;
 184     ASSERT_EQ(Status::Success(),
 185               Decrypt(op_algorithm, private_key, CryptoData(encrypted_data),
 186                       &redecrypted_data));
 187     EXPECT_BYTES_EQ(plaintext, redecrypted_data);
 188   }
 189 }
 190
 191 TEST_F(WebCryptoRsaOaepTest, EncryptWithLargeMessageFails) {
 192   const blink::WebCryptoAlgorithmId kHash = blink::WebCryptoAlgorithmIdSha1;
 193   const size_t kHashSize = 20;
 194
 195   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 196
 197   blink::WebCryptoKey public_key;
 198   ASSERT_EQ(Status::Success(),
 199             ImportKeyJwkFromDict(
 200                 *jwk.get(), CreateRsaHashedImportAlgorithm(
 201                                 blink::WebCryptoAlgorithmIdRsaOaep, kHash),
 202                 true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 203
 204   // The maximum size of an encrypted message is:
 205   //   modulus length
 206   //   - 1 (leading octet)
 207   //   - hash size (maskedSeed)
 208   //   - hash size (lHash portion of maskedDB)
 209   //   - 1 (at least one octet for the padding string)
 210   size_t kMaxMessageSize = (kModulusLengthBits / 8) - 2 - (2 * kHashSize);
 211
 212   // The label has no influence on the maximum message size. For simplicity,
 213   // use the empty string.
 214   std::vector<uint8_t> label;
 215   blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 216
 217   // Test that a message just before the boundary succeeds.
 218   std::string large_message;
 219   large_message.resize(kMaxMessageSize - 1, 'A');
 220
 221   std::vector<uint8_t> ciphertext;
 222   ASSERT_EQ(Status::Success(), Encrypt(op_algorithm, public_key,
 223                                        CryptoData(large_message), &ciphertext));
 224
 225   // Test that a message at the boundary succeeds.
 226   large_message.resize(kMaxMessageSize, 'A');
 227   ciphertext.clear();
 228
 229   ASSERT_EQ(Status::Success(), Encrypt(op_algorithm, public_key,
 230                                        CryptoData(large_message), &ciphertext));
 231
 232   // Test that a message greater than the largest size fails.
 233   large_message.resize(kMaxMessageSize + 1, 'A');
 234   ciphertext.clear();
 235
 236   ASSERT_EQ(Status::OperationError(),
 237             Encrypt(op_algorithm, public_key, CryptoData(large_message),
 238                     &ciphertext));
 239 }
 240
 241 // Ensures that if the selected hash algorithm for the RSA-OAEP message is too
 242 // large, then it is rejected, independent of the actual message to be
 243 // encrypted.
 244 // For example, a 1024-bit RSA key is too small to accomodate a message that
 245 // uses OAEP with SHA-512, since it requires 1040 bits to encode
 246 // (2 * hash size + 2 padding bytes).
 247 TEST_F(WebCryptoRsaOaepTest, EncryptWithLargeDigestFails) {
 248   const blink::WebCryptoAlgorithmId kHash = blink::WebCryptoAlgorithmIdSha512;
 249
 250   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 251
 252   blink::WebCryptoKey public_key;
 253   ASSERT_EQ(Status::Success(),
 254             ImportKeyJwkFromDict(
 255                 *jwk.get(), CreateRsaHashedImportAlgorithm(
 256                                 blink::WebCryptoAlgorithmIdRsaOaep, kHash),
 257                 true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 258
 259   // The label has no influence on the maximum message size. For simplicity,
 260   // use the empty string.
 261   std::vector<uint8_t> label;
 262   blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 263
 264   std::string small_message("A");
 265   std::vector<uint8_t> ciphertext;
 266   // This is an operation error, as the internal consistency checking of the
 267   // algorithm parameters is up to the implementation.
 268   ASSERT_EQ(Status::OperationError(),
 269             Encrypt(op_algorithm, public_key, CryptoData(small_message),
 270                     &ciphertext));
 271 }
 272
 273 TEST_F(WebCryptoRsaOaepTest, DecryptWithLargeMessageFails) {
 274   blink::WebCryptoKey private_key;
 275   ASSERT_EQ(Status::Success(),
 276             ImportKey(blink::WebCryptoKeyFormatPkcs8,
 277                       CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
 278                       CreateRsaHashedImportAlgorithm(
 279                           blink::WebCryptoAlgorithmIdRsaOaep,
 280                           blink::WebCryptoAlgorithmIdSha1),
 281                       true, blink::WebCryptoKeyUsageDecrypt, &private_key));
 282
 283   // The label has no influence on the maximum message size. For simplicity,
 284   // use the empty string.
 285   std::vector<uint8_t> label;
 286   blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 287
 288   std::string large_dummy_message(kModulusLengthBits / 8, 'A');
 289   std::vector<uint8_t> plaintext;
 290
 291   ASSERT_EQ(Status::OperationError(),
 292             Decrypt(op_algorithm, private_key, CryptoData(large_dummy_message),
 293                     &plaintext));
 294 }
 295
 296 TEST_F(WebCryptoRsaOaepTest, WrapUnwrapRawKey) {
 297   blink::WebCryptoAlgorithm import_algorithm = CreateRsaHashedImportAlgorithm(
 298       blink::WebCryptoAlgorithmIdRsaOaep, blink::WebCryptoAlgorithmIdSha1);
 299   blink::WebCryptoKey public_key;
 300   blink::WebCryptoKey private_key;
 301
 302   ASSERT_NO_FATAL_FAILURE(ImportRsaKeyPair(
 303       HexStringToBytes(kPublicKeySpkiDerHex),
 304       HexStringToBytes(kPrivateKeyPkcs8DerHex), import_algorithm, false,
 305       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageWrapKey,
 306       blink::WebCryptoKeyUsageDecrypt | blink::WebCryptoKeyUsageUnwrapKey,
 307       &public_key, &private_key));
 308
 309   std::vector<uint8_t> label;
 310   blink::WebCryptoAlgorithm wrapping_algorithm = CreateRsaOaepAlgorithm(label);
 311
 312   const std::string key_hex = "000102030405060708090A0B0C0D0E0F";
 313   const blink::WebCryptoAlgorithm key_algorithm =
 314       CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
 315
 316   blink::WebCryptoKey key =
 317       ImportSecretKeyFromRaw(HexStringToBytes(key_hex), key_algorithm,
 318                              blink::WebCryptoKeyUsageEncrypt);
 319   ASSERT_FALSE(key.isNull());
 320
 321   std::vector<uint8_t> wrapped_key;
 322   ASSERT_EQ(Status::Success(),
 323             WrapKey(blink::WebCryptoKeyFormatRaw, key, public_key,
 324                     wrapping_algorithm, &wrapped_key));
 325
 326   // Verify that |wrapped_key| can be decrypted and yields the key data.
 327   // Because |private_key| supports both decrypt and unwrap, this is valid.
 328   std::vector<uint8_t> decrypted_key;
 329   ASSERT_EQ(Status::Success(),
 330             Decrypt(wrapping_algorithm, private_key, CryptoData(wrapped_key),
 331                     &decrypted_key));
 332   EXPECT_BYTES_EQ_HEX(key_hex, decrypted_key);
 333
 334   // Now attempt to unwrap the key, which should also decrypt the data.
 335   blink::WebCryptoKey unwrapped_key;
 336   ASSERT_EQ(Status::Success(),
 337             UnwrapKey(blink::WebCryptoKeyFormatRaw, CryptoData(wrapped_key),
 338                       private_key, wrapping_algorithm, key_algorithm, true,
 339                       blink::WebCryptoKeyUsageEncrypt, &unwrapped_key));
 340   ASSERT_FALSE(unwrapped_key.isNull());
 341
 342   std::vector<uint8_t> raw_key;
 343   ASSERT_EQ(Status::Success(),
 344             ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
 345   EXPECT_BYTES_EQ_HEX(key_hex, raw_key);
 346 }
 347
 348 TEST_F(WebCryptoRsaOaepTest, WrapUnwrapJwkSymKey) {
 349   // The public and private portions of a 2048-bit RSA key with the
 350   // id-rsaEncryption OID
 351   const char kPublicKey2048SpkiDerHex[] =
 352       "30820122300d06092a864886f70d01010105000382010f003082010a0282010100c5d8ce"
 353       "137a38168c8ab70229cfa5accc640567159750a312ce2e7d54b6e2fdd59b300c6a6c9764"
 354       "f8de6f00519cdb90111453d273a967462786480621f9e7cee5b73d63358448e7183a3a68"
 355       "e991186359f26aa88fbca5f53e673e502e4c5a2ba5068aeba60c9d0c44d872458d1b1e2f"
 356       "7f339f986076d516e93dc750f0b7680b6f5f02bc0d5590495be04c4ae59d34ba17bc5d08"
 357       "a93c75cfda2828f4a55b153af912038438276cb4a14f8116ca94db0ea9893652d02fc606"
 358       "36f19975e3d79a4d8ea8bfed6f8e0a24b63d243b08ea70a086ad56dd6341d733711c89ca"
 359       "749d4a80b3e6ecd2f8e53731eadeac2ea77788ee55d7b4b47c0f2523fbd61b557c16615d"
 360       "5d0203010001";
 361   const char kPrivateKey2048Pkcs8DerHex[] =
 362       "308204bd020100300d06092a864886f70d0101010500048204a7308204a3020100028201"
 363       "0100c5d8ce137a38168c8ab70229cfa5accc640567159750a312ce2e7d54b6e2fdd59b30"
 364       "0c6a6c9764f8de6f00519cdb90111453d273a967462786480621f9e7cee5b73d63358448"
 365       "e7183a3a68e991186359f26aa88fbca5f53e673e502e4c5a2ba5068aeba60c9d0c44d872"
 366       "458d1b1e2f7f339f986076d516e93dc750f0b7680b6f5f02bc0d5590495be04c4ae59d34"
 367       "ba17bc5d08a93c75cfda2828f4a55b153af912038438276cb4a14f8116ca94db0ea98936"
 368       "52d02fc60636f19975e3d79a4d8ea8bfed6f8e0a24b63d243b08ea70a086ad56dd6341d7"
 369       "33711c89ca749d4a80b3e6ecd2f8e53731eadeac2ea77788ee55d7b4b47c0f2523fbd61b"
 370       "557c16615d5d02030100010282010074b70feb41a0b0fcbc207670400556c9450042ede3"
 371       "d4383fb1ce8f3558a6d4641d26dd4c333fa4db842d2b9cf9d2354d3e16ad027a9f682d8c"
 372       "f4145a1ad97b9edcd8a41c402bd9d8db10f62f43df854cdccbbb2100834f083f53ed6d42"
 373       "b1b729a59072b004a4e945fc027db15e9c121d1251464d320d4774d5732df6b3dbf751f4"
 374       "9b19c9db201e19989c883bbaad5333db47f64f6f7a95b8d4936b10d945aa3f794cfaab62"
 375       "e7d47686129358914f3b8085f03698a650ab5b8c7e45813f2b0515ec05b6e5195b6a7c2a"
 376       "0d36969745f431ded4fd059f6aa361a4649541016d356297362b778e90f077d48815b339"
 377       "ec6f43aba345df93e67fcb6c2cb5b4544e9be902818100e9c90abe5f9f32468c5b6d630c"
 378       "54a4d7d75e29a72cf792f21e242aac78fd7995c42dfd4ae871d2619ff7096cb05baa78e3"
 379       "23ecab338401a8059adf7a0d8be3b21edc9a9c82c5605634a2ec81ec053271721351868a"
 380       "4c2e50c689d7cef94e31ff23658af5843366e2b289c5bf81d72756a7b93487dd8770d69c"
 381       "1f4e089d6d89f302818100d8a58a727c4e209132afd9933b98c89aca862a01cc0be74133"
 382       "bee517909e5c379e526895ac4af11780c1fe91194c777c9670b6423f0f5a32fd7691a622"
 383       "113eef4bed2ef863363a335fd55b0e75088c582437237d7f3ed3f0a643950237bc6e6277"
 384       "ccd0d0a1b4170aa1047aa7ffa7c8c54be10e8c7327ae2e0885663963817f6f02818100e5"
 385       "aed9ba4d71b7502e6748a1ce247ecb7bd10c352d6d9256031cdf3c11a65e44b0b7ca2945"
 386       "134671195af84c6b3bb3d10ebf65ae916f38bd5dbc59a0ad1c69b8beaf57cb3a8335f19b"
 387       "c7117b576987b48331cd9fd3d1a293436b7bb5e1a35c6560de4b5688ea834367cb0997eb"
 388       "b578f59ed4cb724c47dba94d3b484c1876dcd70281807f15bc7d2406007cac2b138a96af"
 389       "2d1e00276b84da593132c253fcb73212732dfd25824c2a615bc3d9b7f2c8d2fa542d3562"
 390       "b0c7738e61eeff580a6056239fb367ea9e5efe73d4f846033602e90c36a78db6fa8ea792"
 391       "0769675ec58e237bd994d189c8045a96f5dd3a4f12547257ce224e3c9af830a4da3c0eab"
 392       "9227a0035ae9028180067caea877e0b23090fc689322b71fbcce63d6596e66ab5fcdbaa0"
 393       "0d49e93aba8effb4518c2da637f209028401a68f344865b4956b032c69acde51d29177ca"
 394       "3db99fdbf5e74848ed4fa7bdfc2ebb60e2aaa5354770a763e1399ab7a2099762d525fea0"
 395       "37f3e1972c45a477e66db95c9609bb27f862700ef93379930786cf751b";
 396   blink::WebCryptoAlgorithm import_algorithm = CreateRsaHashedImportAlgorithm(
 397       blink::WebCryptoAlgorithmIdRsaOaep, blink::WebCryptoAlgorithmIdSha1);
 398   blink::WebCryptoKey public_key;
 399   blink::WebCryptoKey private_key;
 400
 401   ASSERT_NO_FATAL_FAILURE(ImportRsaKeyPair(
 402       HexStringToBytes(kPublicKey2048SpkiDerHex),
 403       HexStringToBytes(kPrivateKey2048Pkcs8DerHex), import_algorithm, false,
 404       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageWrapKey,
 405       blink::WebCryptoKeyUsageDecrypt | blink::WebCryptoKeyUsageUnwrapKey,
 406       &public_key, &private_key));
 407
 408   std::vector<uint8_t> label;
 409   blink::WebCryptoAlgorithm wrapping_algorithm = CreateRsaOaepAlgorithm(label);
 410
 411   const std::string key_hex = "000102030405060708090a0b0c0d0e0f";
 412   const blink::WebCryptoAlgorithm key_algorithm =
 413       CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
 414
 415   blink::WebCryptoKey key =
 416       ImportSecretKeyFromRaw(HexStringToBytes(key_hex), key_algorithm,
 417                              blink::WebCryptoKeyUsageEncrypt);
 418   ASSERT_FALSE(key.isNull());
 419
 420   std::vector<uint8_t> wrapped_key;
 421   ASSERT_EQ(Status::Success(),
 422             WrapKey(blink::WebCryptoKeyFormatJwk, key, public_key,
 423                     wrapping_algorithm, &wrapped_key));
 424
 425   // Verify that |wrapped_key| can be decrypted and yields a valid JWK object.
 426   // Because |private_key| supports both decrypt and unwrap, this is valid.
 427   std::vector<uint8_t> decrypted_jwk;
 428   ASSERT_EQ(Status::Success(),
 429             Decrypt(wrapping_algorithm, private_key, CryptoData(wrapped_key),
 430                     &decrypted_jwk));
 431   EXPECT_TRUE(VerifySecretJwk(decrypted_jwk, "A128CBC", key_hex,
 432                               blink::WebCryptoKeyUsageEncrypt));
 433
 434   // Now attempt to unwrap the key, which should also decrypt the data.
 435   blink::WebCryptoKey unwrapped_key;
 436   ASSERT_EQ(Status::Success(),
 437             UnwrapKey(blink::WebCryptoKeyFormatJwk, CryptoData(wrapped_key),
 438                       private_key, wrapping_algorithm, key_algorithm, true,
 439                       blink::WebCryptoKeyUsageEncrypt, &unwrapped_key));
 440   ASSERT_FALSE(unwrapped_key.isNull());
 441
 442   std::vector<uint8_t> raw_key;
 443   ASSERT_EQ(Status::Success(),
 444             ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
 445   EXPECT_BYTES_EQ_HEX(key_hex, raw_key);
 446 }
 447
 448 TEST_F(WebCryptoRsaOaepTest, ImportExportJwkRsaPublicKey) {
 449   struct TestCase {
 450     const blink::WebCryptoAlgorithmId hash;
 451     const blink::WebCryptoKeyUsageMask usage;
 452     const char* const jwk_alg;
 453   };
 454   const TestCase kTests[] = {{blink::WebCryptoAlgorithmIdSha1,
 455                               blink::WebCryptoKeyUsageEncrypt,
 456                               "RSA-OAEP"},
 457                              {blink::WebCryptoAlgorithmIdSha256,
 458                               blink::WebCryptoKeyUsageEncrypt,
 459                               "RSA-OAEP-256"},
 460                              {blink::WebCryptoAlgorithmIdSha384,
 461                               blink::WebCryptoKeyUsageEncrypt,
 462                               "RSA-OAEP-384"},
 463                              {blink::WebCryptoAlgorithmIdSha512,
 464                               blink::WebCryptoKeyUsageEncrypt,
 465                               "RSA-OAEP-512"}};
 466
 467   for (size_t test_index = 0; test_index < arraysize(kTests); ++test_index) {
 468     SCOPED_TRACE(test_index);
 469     const TestCase& test = kTests[test_index];
 470
 471     const blink::WebCryptoAlgorithm import_algorithm =
 472         CreateRsaHashedImportAlgorithm(blink::WebCryptoAlgorithmIdRsaOaep,
 473                                        test.hash);
 474
 475     // Import the spki to create a public key
 476     blink::WebCryptoKey public_key;
 477     ASSERT_EQ(Status::Success(),
 478               ImportKey(blink::WebCryptoKeyFormatSpki,
 479                         CryptoData(HexStringToBytes(kPublicKeySpkiDerHex)),
 480                         import_algorithm, true, test.usage, &public_key));
 481
 482     // Export the public key as JWK and verify its contents
 483     std::vector<uint8_t> jwk;
 484     ASSERT_EQ(Status::Success(),
 485               ExportKey(blink::WebCryptoKeyFormatJwk, public_key, &jwk));
 486     EXPECT_TRUE(VerifyPublicJwk(jwk, test.jwk_alg, kPublicKeyModulusHex,
 487                                 kPublicKeyExponentHex, test.usage));
 488
 489     // Import the JWK back in to create a new key
 490     blink::WebCryptoKey public_key2;
 491     ASSERT_EQ(Status::Success(),
 492               ImportKey(blink::WebCryptoKeyFormatJwk, CryptoData(jwk),
 493                         import_algorithm, true, test.usage, &public_key2));
 494     ASSERT_TRUE(public_key2.handle());
 495     EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key2.type());
 496     EXPECT_TRUE(public_key2.extractable());
 497     EXPECT_EQ(import_algorithm.id(), public_key2.algorithm().id());
 498
 499     // TODO(eroman): Export the SPKI and verify matches.
 500   }
 501 }
 502
 503 }  // namespace
 504
 505 }  // namespace webcrypto