components/webcrypto/test/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/crypto_data.h"
   9 #include "components/webcrypto/jwk.h"
  10 #include "components/webcrypto/status.h"
  11 #include "components/webcrypto/test/test_helpers.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 // Import a PKCS#8 private key that uses RSAPrivateKey with the
  42 // id-rsaEncryption OID.
  43 TEST(WebCryptoRsaOaepTest, ImportPkcs8WithRsaEncryption) {
  44   if (!SupportsRsaOaep()) {
  45     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
  46     return;
  47   }
  48
  49   blink::WebCryptoKey private_key;
  50   ASSERT_EQ(Status::Success(),
  51             ImportKey(blink::WebCryptoKeyFormatPkcs8,
  52                       CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
  53                       CreateRsaHashedImportAlgorithm(
  54                           blink::WebCryptoAlgorithmIdRsaOaep,
  55                           blink::WebCryptoAlgorithmIdSha1),
  56                       true, blink::WebCryptoKeyUsageDecrypt, &private_key));
  57 }
  58
  59 TEST(WebCryptoRsaOaepTest, ImportPublicJwkWithNoAlg) {
  60   if (!SupportsRsaOaep()) {
  61     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
  62     return;
  63   }
  64
  65   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
  66
  67   blink::WebCryptoKey public_key;
  68   ASSERT_EQ(
  69       Status::Success(),
  70       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
  71                                            blink::WebCryptoAlgorithmIdRsaOaep,
  72                                            blink::WebCryptoAlgorithmIdSha1),
  73                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
  74 }
  75
  76 TEST(WebCryptoRsaOaepTest, ImportPublicJwkWithMatchingAlg) {
  77   if (!SupportsRsaOaep()) {
  78     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
  79     return;
  80   }
  81
  82   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
  83   jwk->SetString("alg", "RSA-OAEP");
  84
  85   blink::WebCryptoKey public_key;
  86   ASSERT_EQ(
  87       Status::Success(),
  88       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
  89                                            blink::WebCryptoAlgorithmIdRsaOaep,
  90                                            blink::WebCryptoAlgorithmIdSha1),
  91                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
  92 }
  93
  94 TEST(WebCryptoRsaOaepTest, ImportPublicJwkWithMismatchedAlgFails) {
  95   if (!SupportsRsaOaep()) {
  96     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
  97     return;
  98   }
  99
 100   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 101   jwk->SetString("alg", "RSA-OAEP-512");
 102
 103   blink::WebCryptoKey public_key;
 104   ASSERT_EQ(
 105       Status::ErrorJwkAlgorithmInconsistent(),
 106       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
 107                                            blink::WebCryptoAlgorithmIdRsaOaep,
 108                                            blink::WebCryptoAlgorithmIdSha1),
 109                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 110 }
 111
 112 TEST(WebCryptoRsaOaepTest, ImportPublicJwkWithMismatchedTypeFails) {
 113   if (!SupportsRsaOaep()) {
 114     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 115     return;
 116   }
 117
 118   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 119   jwk->SetString("kty", "oct");
 120   jwk->SetString("alg", "RSA-OAEP");
 121
 122   blink::WebCryptoKey public_key;
 123   ASSERT_EQ(
 124       Status::ErrorJwkUnexpectedKty("RSA"),
 125       ImportKeyJwkFromDict(*jwk.get(), CreateRsaHashedImportAlgorithm(
 126                                            blink::WebCryptoAlgorithmIdRsaOaep,
 127                                            blink::WebCryptoAlgorithmIdSha1),
 128                            true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 129 }
 130
 131 TEST(WebCryptoRsaOaepTest, ExportPublicJwk) {
 132   if (!SupportsRsaOaep()) {
 133     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 134     return;
 135   }
 136
 137   struct TestData {
 138     blink::WebCryptoAlgorithmId hash_alg;
 139     const char* expected_jwk_alg;
 140   } kTestData[] = {{blink::WebCryptoAlgorithmIdSha1, "RSA-OAEP"},
 141                    {blink::WebCryptoAlgorithmIdSha256, "RSA-OAEP-256"},
 142                    {blink::WebCryptoAlgorithmIdSha384, "RSA-OAEP-384"},
 143                    {blink::WebCryptoAlgorithmIdSha512, "RSA-OAEP-512"}};
 144   for (size_t i = 0; i < arraysize(kTestData); ++i) {
 145     const TestData& test_data = kTestData[i];
 146     SCOPED_TRACE(test_data.expected_jwk_alg);
 147
 148     scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 149     jwk->SetString("alg", test_data.expected_jwk_alg);
 150
 151     // Import the key in a known-good format
 152     blink::WebCryptoKey public_key;
 153     ASSERT_EQ(Status::Success(),
 154               ImportKeyJwkFromDict(
 155                   *jwk.get(),
 156                   CreateRsaHashedImportAlgorithm(
 157                       blink::WebCryptoAlgorithmIdRsaOaep, test_data.hash_alg),
 158                   true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 159
 160     // Now export the key as JWK and verify its contents
 161     std::vector<uint8_t> jwk_data;
 162     ASSERT_EQ(Status::Success(),
 163               ExportKey(blink::WebCryptoKeyFormatJwk, public_key, &jwk_data));
 164     EXPECT_TRUE(VerifyPublicJwk(jwk_data, test_data.expected_jwk_alg,
 165                                 kPublicKeyModulusHex, kPublicKeyExponentHex,
 166                                 blink::WebCryptoKeyUsageEncrypt));
 167   }
 168 }
 169
 170 TEST(WebCryptoRsaOaepTest, EncryptDecryptKnownAnswerTest) {
 171   if (!SupportsRsaOaep()) {
 172     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 173     return;
 174   }
 175
 176   scoped_ptr<base::ListValue> tests;
 177   ASSERT_TRUE(ReadJsonTestFileToList("rsa_oaep.json", &tests));
 178
 179   for (size_t test_index = 0; test_index < tests->GetSize(); ++test_index) {
 180     SCOPED_TRACE(test_index);
 181
 182     base::DictionaryValue* test = NULL;
 183     ASSERT_TRUE(tests->GetDictionary(test_index, &test));
 184
 185     blink::WebCryptoAlgorithm digest_algorithm =
 186         GetDigestAlgorithm(test, "hash");
 187     ASSERT_FALSE(digest_algorithm.isNull());
 188     std::vector<uint8_t> public_key_der =
 189         GetBytesFromHexString(test, "public_key");
 190     std::vector<uint8_t> private_key_der =
 191         GetBytesFromHexString(test, "private_key");
 192     std::vector<uint8_t> ciphertext = GetBytesFromHexString(test, "ciphertext");
 193     std::vector<uint8_t> plaintext = GetBytesFromHexString(test, "plaintext");
 194     std::vector<uint8_t> label = GetBytesFromHexString(test, "label");
 195
 196     blink::WebCryptoAlgorithm import_algorithm = CreateRsaHashedImportAlgorithm(
 197         blink::WebCryptoAlgorithmIdRsaOaep, digest_algorithm.id());
 198     blink::WebCryptoKey public_key;
 199     blink::WebCryptoKey private_key;
 200
 201     ASSERT_NO_FATAL_FAILURE(ImportRsaKeyPair(
 202         public_key_der, private_key_der, import_algorithm, false,
 203         blink::WebCryptoKeyUsageEncrypt, blink::WebCryptoKeyUsageDecrypt,
 204         &public_key, &private_key));
 205
 206     blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 207     std::vector<uint8_t> decrypted_data;
 208     ASSERT_EQ(Status::Success(),
 209               Decrypt(op_algorithm, private_key, CryptoData(ciphertext),
 210                       &decrypted_data));
 211     EXPECT_BYTES_EQ(plaintext, decrypted_data);
 212     std::vector<uint8_t> encrypted_data;
 213     ASSERT_EQ(Status::Success(),
 214               Encrypt(op_algorithm, public_key, CryptoData(plaintext),
 215                       &encrypted_data));
 216     std::vector<uint8_t> redecrypted_data;
 217     ASSERT_EQ(Status::Success(),
 218               Decrypt(op_algorithm, private_key, CryptoData(encrypted_data),
 219                       &redecrypted_data));
 220     EXPECT_BYTES_EQ(plaintext, redecrypted_data);
 221   }
 222 }
 223
 224 TEST(WebCryptoRsaOaepTest, EncryptWithLargeMessageFails) {
 225   if (!SupportsRsaOaep()) {
 226     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 227     return;
 228   }
 229
 230   const blink::WebCryptoAlgorithmId kHash = blink::WebCryptoAlgorithmIdSha1;
 231   const size_t kHashSize = 20;
 232
 233   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 234
 235   blink::WebCryptoKey public_key;
 236   ASSERT_EQ(Status::Success(),
 237             ImportKeyJwkFromDict(
 238                 *jwk.get(), CreateRsaHashedImportAlgorithm(
 239                                 blink::WebCryptoAlgorithmIdRsaOaep, kHash),
 240                 true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 241
 242   // The maximum size of an encrypted message is:
 243   //   modulus length
 244   //   - 1 (leading octet)
 245   //   - hash size (maskedSeed)
 246   //   - hash size (lHash portion of maskedDB)
 247   //   - 1 (at least one octet for the padding string)
 248   size_t kMaxMessageSize = (kModulusLengthBits / 8) - 2 - (2 * kHashSize);
 249
 250   // The label has no influence on the maximum message size. For simplicity,
 251   // use the empty string.
 252   std::vector<uint8_t> label;
 253   blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 254
 255   // Test that a message just before the boundary succeeds.
 256   std::string large_message;
 257   large_message.resize(kMaxMessageSize - 1, 'A');
 258
 259   std::vector<uint8_t> ciphertext;
 260   ASSERT_EQ(Status::Success(), Encrypt(op_algorithm, public_key,
 261                                        CryptoData(large_message), &ciphertext));
 262
 263   // Test that a message at the boundary succeeds.
 264   large_message.resize(kMaxMessageSize, 'A');
 265   ciphertext.clear();
 266
 267   ASSERT_EQ(Status::Success(), Encrypt(op_algorithm, public_key,
 268                                        CryptoData(large_message), &ciphertext));
 269
 270   // Test that a message greater than the largest size fails.
 271   large_message.resize(kMaxMessageSize + 1, 'A');
 272   ciphertext.clear();
 273
 274   ASSERT_EQ(Status::OperationError(),
 275             Encrypt(op_algorithm, public_key, CryptoData(large_message),
 276                     &ciphertext));
 277 }
 278
 279 // Ensures that if the selected hash algorithm for the RSA-OAEP message is too
 280 // large, then it is rejected, independent of the actual message to be
 281 // encrypted.
 282 // For example, a 1024-bit RSA key is too small to accomodate a message that
 283 // uses OAEP with SHA-512, since it requires 1040 bits to encode
 284 // (2 * hash size + 2 padding bytes).
 285 TEST(WebCryptoRsaOaepTest, EncryptWithLargeDigestFails) {
 286   if (!SupportsRsaOaep()) {
 287     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 288     return;
 289   }
 290
 291   const blink::WebCryptoAlgorithmId kHash = blink::WebCryptoAlgorithmIdSha512;
 292
 293   scoped_ptr<base::DictionaryValue> jwk(CreatePublicKeyJwkDict());
 294
 295   blink::WebCryptoKey public_key;
 296   ASSERT_EQ(Status::Success(),
 297             ImportKeyJwkFromDict(
 298                 *jwk.get(), CreateRsaHashedImportAlgorithm(
 299                                 blink::WebCryptoAlgorithmIdRsaOaep, kHash),
 300                 true, blink::WebCryptoKeyUsageEncrypt, &public_key));
 301
 302   // The label has no influence on the maximum message size. For simplicity,
 303   // use the empty string.
 304   std::vector<uint8_t> label;
 305   blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 306
 307   std::string small_message("A");
 308   std::vector<uint8_t> ciphertext;
 309   // This is an operation error, as the internal consistency checking of the
 310   // algorithm parameters is up to the implementation.
 311   ASSERT_EQ(Status::OperationError(),
 312             Encrypt(op_algorithm, public_key, CryptoData(small_message),
 313                     &ciphertext));
 314 }
 315
 316 TEST(WebCryptoRsaOaepTest, DecryptWithLargeMessageFails) {
 317   if (!SupportsRsaOaep()) {
 318     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 319     return;
 320   }
 321
 322   blink::WebCryptoKey private_key;
 323   ASSERT_EQ(Status::Success(),
 324             ImportKey(blink::WebCryptoKeyFormatPkcs8,
 325                       CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
 326                       CreateRsaHashedImportAlgorithm(
 327                           blink::WebCryptoAlgorithmIdRsaOaep,
 328                           blink::WebCryptoAlgorithmIdSha1),
 329                       true, blink::WebCryptoKeyUsageDecrypt, &private_key));
 330
 331   // The label has no influence on the maximum message size. For simplicity,
 332   // use the empty string.
 333   std::vector<uint8_t> label;
 334   blink::WebCryptoAlgorithm op_algorithm = CreateRsaOaepAlgorithm(label);
 335
 336   std::string large_dummy_message(kModulusLengthBits / 8, 'A');
 337   std::vector<uint8_t> plaintext;
 338
 339   ASSERT_EQ(Status::OperationError(),
 340             Decrypt(op_algorithm, private_key, CryptoData(large_dummy_message),
 341                     &plaintext));
 342 }
 343
 344 TEST(WebCryptoRsaOaepTest, WrapUnwrapRawKey) {
 345   if (!SupportsRsaOaep()) {
 346     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 347     return;
 348   }
 349
 350   blink::WebCryptoAlgorithm import_algorithm = CreateRsaHashedImportAlgorithm(
 351       blink::WebCryptoAlgorithmIdRsaOaep, blink::WebCryptoAlgorithmIdSha1);
 352   blink::WebCryptoKey public_key;
 353   blink::WebCryptoKey private_key;
 354
 355   ASSERT_NO_FATAL_FAILURE(ImportRsaKeyPair(
 356       HexStringToBytes(kPublicKeySpkiDerHex),
 357       HexStringToBytes(kPrivateKeyPkcs8DerHex), import_algorithm, false,
 358       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageWrapKey,
 359       blink::WebCryptoKeyUsageDecrypt | blink::WebCryptoKeyUsageUnwrapKey,
 360       &public_key, &private_key));
 361
 362   std::vector<uint8_t> label;
 363   blink::WebCryptoAlgorithm wrapping_algorithm = CreateRsaOaepAlgorithm(label);
 364
 365   const std::string key_hex = "000102030405060708090A0B0C0D0E0F";
 366   const blink::WebCryptoAlgorithm key_algorithm =
 367       CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
 368
 369   blink::WebCryptoKey key =
 370       ImportSecretKeyFromRaw(HexStringToBytes(key_hex), key_algorithm,
 371                              blink::WebCryptoKeyUsageEncrypt);
 372   ASSERT_FALSE(key.isNull());
 373
 374   std::vector<uint8_t> wrapped_key;
 375   ASSERT_EQ(Status::Success(),
 376             WrapKey(blink::WebCryptoKeyFormatRaw, key, public_key,
 377                     wrapping_algorithm, &wrapped_key));
 378
 379   // Verify that |wrapped_key| can be decrypted and yields the key data.
 380   // Because |private_key| supports both decrypt and unwrap, this is valid.
 381   std::vector<uint8_t> decrypted_key;
 382   ASSERT_EQ(Status::Success(),
 383             Decrypt(wrapping_algorithm, private_key, CryptoData(wrapped_key),
 384                     &decrypted_key));
 385   EXPECT_BYTES_EQ_HEX(key_hex, decrypted_key);
 386
 387   // Now attempt to unwrap the key, which should also decrypt the data.
 388   blink::WebCryptoKey unwrapped_key;
 389   ASSERT_EQ(Status::Success(),
 390             UnwrapKey(blink::WebCryptoKeyFormatRaw, CryptoData(wrapped_key),
 391                       private_key, wrapping_algorithm, key_algorithm, true,
 392                       blink::WebCryptoKeyUsageEncrypt, &unwrapped_key));
 393   ASSERT_FALSE(unwrapped_key.isNull());
 394
 395   std::vector<uint8_t> raw_key;
 396   ASSERT_EQ(Status::Success(),
 397             ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
 398   EXPECT_BYTES_EQ_HEX(key_hex, raw_key);
 399 }
 400
 401 TEST(WebCryptoRsaOaepTest, WrapUnwrapJwkSymKey) {
 402   if (!SupportsRsaOaep()) {
 403     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 404     return;
 405   }
 406
 407   // The public and private portions of a 2048-bit RSA key with the
 408   // id-rsaEncryption OID
 409   const char kPublicKey2048SpkiDerHex[] =
 410       "30820122300d06092a864886f70d01010105000382010f003082010a0282010100c5d8ce"
 411       "137a38168c8ab70229cfa5accc640567159750a312ce2e7d54b6e2fdd59b300c6a6c9764"
 412       "f8de6f00519cdb90111453d273a967462786480621f9e7cee5b73d63358448e7183a3a68"
 413       "e991186359f26aa88fbca5f53e673e502e4c5a2ba5068aeba60c9d0c44d872458d1b1e2f"
 414       "7f339f986076d516e93dc750f0b7680b6f5f02bc0d5590495be04c4ae59d34ba17bc5d08"
 415       "a93c75cfda2828f4a55b153af912038438276cb4a14f8116ca94db0ea9893652d02fc606"
 416       "36f19975e3d79a4d8ea8bfed6f8e0a24b63d243b08ea70a086ad56dd6341d733711c89ca"
 417       "749d4a80b3e6ecd2f8e53731eadeac2ea77788ee55d7b4b47c0f2523fbd61b557c16615d"
 418       "5d0203010001";
 419   const char kPrivateKey2048Pkcs8DerHex[] =
 420       "308204bd020100300d06092a864886f70d0101010500048204a7308204a3020100028201"
 421       "0100c5d8ce137a38168c8ab70229cfa5accc640567159750a312ce2e7d54b6e2fdd59b30"
 422       "0c6a6c9764f8de6f00519cdb90111453d273a967462786480621f9e7cee5b73d63358448"
 423       "e7183a3a68e991186359f26aa88fbca5f53e673e502e4c5a2ba5068aeba60c9d0c44d872"
 424       "458d1b1e2f7f339f986076d516e93dc750f0b7680b6f5f02bc0d5590495be04c4ae59d34"
 425       "ba17bc5d08a93c75cfda2828f4a55b153af912038438276cb4a14f8116ca94db0ea98936"
 426       "52d02fc60636f19975e3d79a4d8ea8bfed6f8e0a24b63d243b08ea70a086ad56dd6341d7"
 427       "33711c89ca749d4a80b3e6ecd2f8e53731eadeac2ea77788ee55d7b4b47c0f2523fbd61b"
 428       "557c16615d5d02030100010282010074b70feb41a0b0fcbc207670400556c9450042ede3"
 429       "d4383fb1ce8f3558a6d4641d26dd4c333fa4db842d2b9cf9d2354d3e16ad027a9f682d8c"
 430       "f4145a1ad97b9edcd8a41c402bd9d8db10f62f43df854cdccbbb2100834f083f53ed6d42"
 431       "b1b729a59072b004a4e945fc027db15e9c121d1251464d320d4774d5732df6b3dbf751f4"
 432       "9b19c9db201e19989c883bbaad5333db47f64f6f7a95b8d4936b10d945aa3f794cfaab62"
 433       "e7d47686129358914f3b8085f03698a650ab5b8c7e45813f2b0515ec05b6e5195b6a7c2a"
 434       "0d36969745f431ded4fd059f6aa361a4649541016d356297362b778e90f077d48815b339"
 435       "ec6f43aba345df93e67fcb6c2cb5b4544e9be902818100e9c90abe5f9f32468c5b6d630c"
 436       "54a4d7d75e29a72cf792f21e242aac78fd7995c42dfd4ae871d2619ff7096cb05baa78e3"
 437       "23ecab338401a8059adf7a0d8be3b21edc9a9c82c5605634a2ec81ec053271721351868a"
 438       "4c2e50c689d7cef94e31ff23658af5843366e2b289c5bf81d72756a7b93487dd8770d69c"
 439       "1f4e089d6d89f302818100d8a58a727c4e209132afd9933b98c89aca862a01cc0be74133"
 440       "bee517909e5c379e526895ac4af11780c1fe91194c777c9670b6423f0f5a32fd7691a622"
 441       "113eef4bed2ef863363a335fd55b0e75088c582437237d7f3ed3f0a643950237bc6e6277"
 442       "ccd0d0a1b4170aa1047aa7ffa7c8c54be10e8c7327ae2e0885663963817f6f02818100e5"
 443       "aed9ba4d71b7502e6748a1ce247ecb7bd10c352d6d9256031cdf3c11a65e44b0b7ca2945"
 444       "134671195af84c6b3bb3d10ebf65ae916f38bd5dbc59a0ad1c69b8beaf57cb3a8335f19b"
 445       "c7117b576987b48331cd9fd3d1a293436b7bb5e1a35c6560de4b5688ea834367cb0997eb"
 446       "b578f59ed4cb724c47dba94d3b484c1876dcd70281807f15bc7d2406007cac2b138a96af"
 447       "2d1e00276b84da593132c253fcb73212732dfd25824c2a615bc3d9b7f2c8d2fa542d3562"
 448       "b0c7738e61eeff580a6056239fb367ea9e5efe73d4f846033602e90c36a78db6fa8ea792"
 449       "0769675ec58e237bd994d189c8045a96f5dd3a4f12547257ce224e3c9af830a4da3c0eab"
 450       "9227a0035ae9028180067caea877e0b23090fc689322b71fbcce63d6596e66ab5fcdbaa0"
 451       "0d49e93aba8effb4518c2da637f209028401a68f344865b4956b032c69acde51d29177ca"
 452       "3db99fdbf5e74848ed4fa7bdfc2ebb60e2aaa5354770a763e1399ab7a2099762d525fea0"
 453       "37f3e1972c45a477e66db95c9609bb27f862700ef93379930786cf751b";
 454   blink::WebCryptoAlgorithm import_algorithm = CreateRsaHashedImportAlgorithm(
 455       blink::WebCryptoAlgorithmIdRsaOaep, blink::WebCryptoAlgorithmIdSha1);
 456   blink::WebCryptoKey public_key;
 457   blink::WebCryptoKey private_key;
 458
 459   ASSERT_NO_FATAL_FAILURE(ImportRsaKeyPair(
 460       HexStringToBytes(kPublicKey2048SpkiDerHex),
 461       HexStringToBytes(kPrivateKey2048Pkcs8DerHex), import_algorithm, false,
 462       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageWrapKey,
 463       blink::WebCryptoKeyUsageDecrypt | blink::WebCryptoKeyUsageUnwrapKey,
 464       &public_key, &private_key));
 465
 466   std::vector<uint8_t> label;
 467   blink::WebCryptoAlgorithm wrapping_algorithm = CreateRsaOaepAlgorithm(label);
 468
 469   const std::string key_hex = "000102030405060708090a0b0c0d0e0f";
 470   const blink::WebCryptoAlgorithm key_algorithm =
 471       CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
 472
 473   blink::WebCryptoKey key =
 474       ImportSecretKeyFromRaw(HexStringToBytes(key_hex), key_algorithm,
 475                              blink::WebCryptoKeyUsageEncrypt);
 476   ASSERT_FALSE(key.isNull());
 477
 478   std::vector<uint8_t> wrapped_key;
 479   ASSERT_EQ(Status::Success(),
 480             WrapKey(blink::WebCryptoKeyFormatJwk, key, public_key,
 481                     wrapping_algorithm, &wrapped_key));
 482
 483   // Verify that |wrapped_key| can be decrypted and yields a valid JWK object.
 484   // Because |private_key| supports both decrypt and unwrap, this is valid.
 485   std::vector<uint8_t> decrypted_jwk;
 486   ASSERT_EQ(Status::Success(),
 487             Decrypt(wrapping_algorithm, private_key, CryptoData(wrapped_key),
 488                     &decrypted_jwk));
 489   EXPECT_TRUE(VerifySecretJwk(decrypted_jwk, "A128CBC", key_hex,
 490                               blink::WebCryptoKeyUsageEncrypt));
 491
 492   // Now attempt to unwrap the key, which should also decrypt the data.
 493   blink::WebCryptoKey unwrapped_key;
 494   ASSERT_EQ(Status::Success(),
 495             UnwrapKey(blink::WebCryptoKeyFormatJwk, CryptoData(wrapped_key),
 496                       private_key, wrapping_algorithm, key_algorithm, true,
 497                       blink::WebCryptoKeyUsageEncrypt, &unwrapped_key));
 498   ASSERT_FALSE(unwrapped_key.isNull());
 499
 500   std::vector<uint8_t> raw_key;
 501   ASSERT_EQ(Status::Success(),
 502             ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
 503   EXPECT_BYTES_EQ_HEX(key_hex, raw_key);
 504 }
 505
 506 TEST(WebCryptoRsaOaepTest, ImportExportJwkRsaPublicKey) {
 507   if (!SupportsRsaOaep()) {
 508     LOG(WARNING) << "RSA-OAEP support not present; skipping.";
 509     return;
 510   }
 511
 512   struct TestCase {
 513     const blink::WebCryptoAlgorithmId hash;
 514     const blink::WebCryptoKeyUsageMask usage;
 515     const char* const jwk_alg;
 516   };
 517   const TestCase kTests[] = {{blink::WebCryptoAlgorithmIdSha1,
 518                               blink::WebCryptoKeyUsageEncrypt,
 519                               "RSA-OAEP"},
 520                              {blink::WebCryptoAlgorithmIdSha256,
 521                               blink::WebCryptoKeyUsageEncrypt,
 522                               "RSA-OAEP-256"},
 523                              {blink::WebCryptoAlgorithmIdSha384,
 524                               blink::WebCryptoKeyUsageEncrypt,
 525                               "RSA-OAEP-384"},
 526                              {blink::WebCryptoAlgorithmIdSha512,
 527                               blink::WebCryptoKeyUsageEncrypt,
 528                               "RSA-OAEP-512"}};
 529
 530   for (size_t test_index = 0; test_index < arraysize(kTests); ++test_index) {
 531     SCOPED_TRACE(test_index);
 532     const TestCase& test = kTests[test_index];
 533
 534     const blink::WebCryptoAlgorithm import_algorithm =
 535         CreateRsaHashedImportAlgorithm(blink::WebCryptoAlgorithmIdRsaOaep,
 536                                        test.hash);
 537
 538     // Import the spki to create a public key
 539     blink::WebCryptoKey public_key;
 540     ASSERT_EQ(Status::Success(),
 541               ImportKey(blink::WebCryptoKeyFormatSpki,
 542                         CryptoData(HexStringToBytes(kPublicKeySpkiDerHex)),
 543                         import_algorithm, true, test.usage, &public_key));
 544
 545     // Export the public key as JWK and verify its contents
 546     std::vector<uint8_t> jwk;
 547     ASSERT_EQ(Status::Success(),
 548               ExportKey(blink::WebCryptoKeyFormatJwk, public_key, &jwk));
 549     EXPECT_TRUE(VerifyPublicJwk(jwk, test.jwk_alg, kPublicKeyModulusHex,
 550                                 kPublicKeyExponentHex, test.usage));
 551
 552     // Import the JWK back in to create a new key
 553     blink::WebCryptoKey public_key2;
 554     ASSERT_EQ(Status::Success(),
 555               ImportKey(blink::WebCryptoKeyFormatJwk, CryptoData(jwk),
 556                         import_algorithm, true, test.usage, &public_key2));
 557     ASSERT_TRUE(public_key2.handle());
 558     EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key2.type());
 559     EXPECT_TRUE(public_key2.extractable());
 560     EXPECT_EQ(import_algorithm.id(), public_key2.algorithm().id());
 561
 562     // TODO(eroman): Export the SPKI and verify matches.
 563   }
 564 }
 565
 566 }  // namespace
 567
 568 }  // namespace webcrypto