[refactor] Move webcrypto test data to separate files.

content/renderer/webcrypto/webcrypto_impl_unittest.cc

Index: content/renderer/webcrypto/webcrypto_impl_unittest.cc
diff --git a/content/renderer/webcrypto/webcrypto_impl_unittest.cc b/content/renderer/webcrypto/webcrypto_impl_unittest.cc
index 15ba668081a5381dfae93010de2442ea9264bf79..c2ee701048b01d6e486149255601edab4ea4dd10 100644
--- a/content/renderer/webcrypto/webcrypto_impl_unittest.cc
+++ b/content/renderer/webcrypto/webcrypto_impl_unittest.cc
@@ -9,10 +9,15 @@
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/file_util.h"
+#include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
+#include "base/path_service.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/values.h"
+#include "content/public/common/content_paths.h"
 #include "content/public/renderer/content_renderer_client.h"
 #include "content/renderer/renderer_webkitplatformsupport_impl.h"
 #include "content/renderer/webcrypto/webcrypto_util.h"
@@ -21,6 +26,7 @@
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
 #include "third_party/WebKit/public/platform/WebCryptoAlgorithmParams.h"
 #include "third_party/WebKit/public/platform/WebCryptoKey.h"
+#include "third_party/re2/re2/re2.h"
 
 // The OpenSSL implementation of WebCrypto is less complete, so don't run all of
 // the tests: http://crbug.com/267888
@@ -63,6 +69,13 @@ std::vector<uint8> HexStringToBytes(const std::string& hex) {
   return bytes;
 }
 
+void ExpectArrayBufferMatches(const std::vector<uint8>& expected,
+                              const blink::WebArrayBuffer& actual) {
+  EXPECT_EQ(
+      base::HexEncode(webcrypto::Uint8VectorStart(expected), expected.size()),
+      base::HexEncode(actual.data(), actual.byteLength()));
+}
+
 void ExpectArrayBufferMatchesHex(const std::string& expected_hex,
                                  const blink::WebArrayBuffer& array_buffer) {
   EXPECT_STRCASEEQ(
@@ -70,12 +83,11 @@ void ExpectArrayBufferMatchesHex(const std::string& expected_hex,
       base::HexEncode(array_buffer.data(), array_buffer.byteLength()).c_str());
 }
 
-void ExpectVectorMatchesHex(const std::string& expected_hex,
-                            const std::vector<uint8>& bytes) {
-  EXPECT_STRCASEEQ(
-      expected_hex.c_str(),
-      base::HexEncode(webcrypto::Uint8VectorStart(bytes),
-          bytes.size()).c_str());
+void ExpectVectorMatches(const std::vector<uint8>& expected,
+                         const std::vector<uint8>& actual) {
+  EXPECT_EQ(
+      base::HexEncode(webcrypto::Uint8VectorStart(expected), expected.size()),
+      base::HexEncode(webcrypto::Uint8VectorStart(actual), actual.size()));
 }
 
 std::vector<uint8> MakeJsonVector(const std::string& json_string) {
@@ -88,6 +100,110 @@ std::vector<uint8> MakeJsonVector(const base::DictionaryValue& dict) {
   return MakeJsonVector(json);
 }
 
+// ----------------------------------------------------------------
+// Helpers for working with JSON data files for test expectations.
+// ----------------------------------------------------------------
+
+// Reads a file in "src/content/test/data/webcrypto" to a base::Value.
+// The file must be JSON, however it can also include C++ style comments.
+::testing::AssertionResult ReadJsonTestFile(
+    const char* test_file_name,
+    scoped_ptr<base::Value>* value) {
+  base::FilePath test_data_dir;
+  if (!PathService::Get(DIR_TEST_DATA, &test_data_dir))
+    return ::testing::AssertionFailure() << "Couldn't retrieve test dir";
+
+  base::FilePath file_path =
+      test_data_dir.AppendASCII("webcrypto").AppendASCII(test_file_name);
+
+  std::string file_contents;
+  if (!base::ReadFileToString(file_path, &file_contents)) {
+    return ::testing::AssertionFailure() << "Couldn't read test file: "
+                                         << file_path.value();
+  }
+
+  // Strip C++ style comments out of the "json" file, otherwise it cannot be
+  // parsed.
+  re2::RE2::GlobalReplace(&file_contents, re2::RE2("\\s*//.*"), "");
+
+  // Parse the JSON to a dictionary.
+  value->reset(base::JSONReader::Read(file_contents));
+  if (!value->get()) {
+    return ::testing::AssertionFailure() << "Couldn't parse test file JSON: "
+                                         << file_path.value();
+  }
+
+  return ::testing::AssertionSuccess();
+}
+
+// Same as ReadJsonTestFile(), but return the value as a List.
+::testing::AssertionResult ReadJsonTestFileToList(
+    const char* test_file_name,
+    scoped_ptr<base::ListValue>* list) {
+  // Read the JSON.
+  scoped_ptr<base::Value> json;
+  ::testing::AssertionResult result = ReadJsonTestFile(test_file_name, &json);
+  if (!result)
+    return result;
+
+  // Cast to an ListValue.
+  base::ListValue* list_value = NULL;
+  if (!json->GetAsList(&list_value) || !list_value)
+    return ::testing::AssertionFailure() << "The JSON was not a list";
+
+  list->reset(list_value);
+  ignore_result(json.release());
+
+  return ::testing::AssertionSuccess();
+}
+
+// Read a string property from the dictionary with path |property_name|
+// (which can include periods for nested dictionaries). Interprets the
+// string as a hex encoded string and converts it to a bytes list.
+//
+// Returns empty vector on failure.
+std::vector<uint8> GetBytesFromHexString(
+    base::DictionaryValue* dict,
+    const char* property_name) {
+  std::string hex_string;
+  if (!dict->GetString(property_name, &hex_string)) {
+    EXPECT_TRUE(false) << "Couldn't get string property: " << property_name;
+    return std::vector<uint8>();
+  }
+
+  return HexStringToBytes(hex_string);
+}
+
+// Reads a string property with path "property_name" and converts it to a
+// WebCryptoAlgorith. Returns null algorithm on failure.
+blink::WebCryptoAlgorithm GetDigestAlgorithm(
+    base::DictionaryValue* dict,
+    const char* property_name) {
+  std::string algorithm_name;
+  if (!dict->GetString(property_name, &algorithm_name)) {
+    EXPECT_TRUE(false) << "Couldn't get string property: " << property_name;
+    return blink::WebCryptoAlgorithm::createNull();
+  }
+
+  struct {
+    const char* name;
+    blink::WebCryptoAlgorithmId id;
+  } kDigestNameToId[] = {
+    {"sha-1", blink::WebCryptoAlgorithmIdSha1},
+    {"sha-224", blink::WebCryptoAlgorithmIdSha224},
+    {"sha-256", blink::WebCryptoAlgorithmIdSha256},
+    {"sha-384", blink::WebCryptoAlgorithmIdSha384},
+    {"sha-512", blink::WebCryptoAlgorithmIdSha512},
+  };
+
+  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kDigestNameToId); ++i) {
+    if (kDigestNameToId[i].name == algorithm_name)
+      return webcrypto::CreateAlgorithm(kDigestNameToId[i].id);
+  }
+
+  return blink::WebCryptoAlgorithm::createNull();
+}
+
 // Helper for ImportJwkFailures and ImportJwkOctFailures. Restores the JWK JSON
 // dictionary to a good state
 void RestoreJwkOctDictionary(base::DictionaryValue* dict) {
@@ -223,12 +339,10 @@ const char* const kPrivateKeyPkcs8DerHex =
 
 class WebCryptoImplTest : public testing::Test {
  protected:
-  blink::WebCryptoKey ImportSecretKeyFromRawHexString(
-      const std::string& key_hex,
+  blink::WebCryptoKey ImportSecretKeyFromRaw(
+      const std::vector<uint8>& key_raw,
       const blink::WebCryptoAlgorithm& algorithm,
       blink::WebCryptoKeyUsageMask usage) {
-    std::vector<uint8> key_raw = HexStringToBytes(key_hex);
-
     blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
     bool extractable = true;
     EXPECT_STATUS_SUCCESS(
@@ -250,8 +364,8 @@ class WebCryptoImplTest : public testing::Test {
   }
 
   void ImportRsaKeyPair(
-      const std::string& spki_der_hex,
-      const std::string& pkcs8_der_hex,
+      const std::vector<uint8>& spki_der,
+      const std::vector<uint8>& pkcs8_der,
       const blink::WebCryptoAlgorithm& algorithm,
       bool extractable,
       blink::WebCryptoKeyUsageMask usage_mask,
@@ -259,7 +373,7 @@ class WebCryptoImplTest : public testing::Test {
       blink::WebCryptoKey* private_key) {
     EXPECT_STATUS_SUCCESS(ImportKeyInternal(
         blink::WebCryptoKeyFormatSpki,
-        HexStringToBytes(spki_der_hex),
+        spki_der,
         algorithm,
         true,
         usage_mask,
@@ -273,7 +387,7 @@ class WebCryptoImplTest : public testing::Test {
 
     EXPECT_STATUS_SUCCESS(ImportKeyInternal(
         blink::WebCryptoKeyFormatPkcs8,
-        HexStringToBytes(pkcs8_der_hex),
+        pkcs8_der,
         algorithm,
         extractable,
         usage_mask,
@@ -518,244 +632,57 @@ TEST_F(WebCryptoImplTest, StatusToString) {
 }
 
 TEST_F(WebCryptoImplTest, DigestSampleSets) {
-  // The results are stored here in hex format for readability.
-  //
-  // TODO(bryaneyler): Eventually, all these sample test sets should be replaced
-  // with the sets here: http://csrc.nist.gov/groups/STM/cavp/index.html#03
-  //
-  // Results were generated using the command sha{1,224,256,384,512}sum.
-  struct TestCase {
-    blink::WebCryptoAlgorithmId algorithm;
-    const std::string hex_input;
-    const char* hex_result;
-  };
+  scoped_ptr<base::ListValue> tests;
+  ASSERT_TRUE(ReadJsonTestFileToList("digest.json", &tests));
 
-  const TestCase kTests[] = {
-    { blink::WebCryptoAlgorithmIdSha1, "",
-      "da39a3ee5e6b4b0d3255bfef95601890afd80709"
-    },
-    { blink::WebCryptoAlgorithmIdSha224, "",
-      "d14a028c2a3a2bc9476102bb288234c415a2b01f828ea62ac5b3e42f"
-    },
-    { blink::WebCryptoAlgorithmIdSha256, "",
-      "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
-    },
-    { blink::WebCryptoAlgorithmIdSha384, "",
-      "38b060a751ac96384cd9327eb1b1e36a21fdb71114be07434c0cc7bf63f6e1da274e"
-      "debfe76f65fbd51ad2f14898b95b"
-    },
-    { blink::WebCryptoAlgorithmIdSha512, "",
-      "cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0"
-      "d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e",
-    },
-    { blink::WebCryptoAlgorithmIdSha1, "00",
-      "5ba93c9db0cff93f52b521d7420e43f6eda2784f",
-    },
-    { blink::WebCryptoAlgorithmIdSha224, "00",
-      "fff9292b4201617bdc4d3053fce02734166a683d7d858a7f5f59b073",
-    },
-    { blink::WebCryptoAlgorithmIdSha256, "00",
-      "6e340b9cffb37a989ca544e6bb780a2c78901d3fb33738768511a30617afa01d",
-    },
-    { blink::WebCryptoAlgorithmIdSha384, "00",
-      "bec021b4f368e3069134e012c2b4307083d3a9bdd206e24e5f0d86e13d6636655933"
-      "ec2b413465966817a9c208a11717",
-    },
-    { blink::WebCryptoAlgorithmIdSha512, "00",
-      "b8244d028981d693af7b456af8efa4cad63d282e19ff14942c246e50d9351d22704a"
-      "802a71c3580b6370de4ceb293c324a8423342557d4e5c38438f0e36910ee",
-    },
-    { blink::WebCryptoAlgorithmIdSha1, "000102030405",
-      "868460d98d09d8bbb93d7b6cdd15cc7fbec676b9",
-    },
-    { blink::WebCryptoAlgorithmIdSha224, "000102030405",
-      "7d92e7f1cad1818ed1d13ab41f04ebabfe1fef6bb4cbeebac34c29bc",
-    },
-    { blink::WebCryptoAlgorithmIdSha256, "000102030405",
-      "17e88db187afd62c16e5debf3e6527cd006bc012bc90b51a810cd80c2d511f43",
-    },
-    { blink::WebCryptoAlgorithmIdSha384, "000102030405",
-      "79f4738706fce9650ac60266675c3cd07298b09923850d525604d040e6e448adc7dc"
-      "22780d7e1b95bfeaa86a678e4552",
-    },
-    { blink::WebCryptoAlgorithmIdSha512, "000102030405",
-      "2f3831bccc94cf061bcfa5f8c23c1429d26e3bc6b76edad93d9025cb91c903af6cf9"
-      "c935dc37193c04c2c66e7d9de17c358284418218afea2160147aaa912f4c",
-    },
-  };
-
-  for (size_t test_index = 0; test_index < ARRAYSIZE_UNSAFE(kTests);
-       ++test_index) {
+  for (size_t test_index = 0; test_index < tests->GetSize(); ++test_index) {
     SCOPED_TRACE(test_index);
-    const TestCase& test = kTests[test_index];
+    base::DictionaryValue* test;
+    ASSERT_TRUE(tests->GetDictionary(test_index, &test));
 
-    blink::WebCryptoAlgorithm algorithm =
-        webcrypto::CreateAlgorithm(test.algorithm);
-    std::vector<uint8> input = HexStringToBytes(test.hex_input);
+    blink::WebCryptoAlgorithm test_algorithm =
+        GetDigestAlgorithm(test, "algorithm");
+    std::vector<uint8> test_input = GetBytesFromHexString(test, "input");
+    std::vector<uint8> test_output = GetBytesFromHexString(test, "output");
 
     blink::WebArrayBuffer output;
-    ASSERT_STATUS_SUCCESS(DigestInternal(algorithm, input, &output));
-    ExpectArrayBufferMatchesHex(test.hex_result, output);
+    ASSERT_STATUS_SUCCESS(DigestInternal(test_algorithm, test_input, &output));
+    ExpectArrayBufferMatches(test_output, output);
   }
 }
 
 TEST_F(WebCryptoImplTest, HMACSampleSets) {
-  struct TestCase {
-    blink::WebCryptoAlgorithmId algorithm;
-    const char* key;
-    const char* message;
-    const char* mac;
-  };
+  scoped_ptr<base::ListValue> tests;
+  ASSERT_TRUE(ReadJsonTestFileToList("hmac.json", &tests));
 
-  const TestCase kTests[] = {
-    // Empty sets.  Result generated via OpenSSL commandline tool.  These
-    // particular results are also posted on the Wikipedia page examples:
-    // http://en.wikipedia.org/wiki/Hash-based_message_authentication_code
-    {
-      blink::WebCryptoAlgorithmIdSha1,
-      "",
-      "",
-      // openssl dgst -sha1 -hmac "" < /dev/null
-      "fbdb1d1b18aa6c08324b7d64b71fb76370690e1d",
-    },
-    {
-      blink::WebCryptoAlgorithmIdSha256,
-      "",
-      "",
-      // openssl dgst -sha256 -hmac "" < /dev/null
-      "b613679a0814d9ec772f95d778c35fc5ff1697c493715653c6c712144292c5ad",
-    },
-    // For this data, see http://csrc.nist.gov/groups/STM/cavp/index.html#07
-    // Download:
-    // http://csrc.nist.gov/groups/STM/cavp/documents/mac/hmactestvectors.zip
-    // L=20 set 45
-    {
-      blink::WebCryptoAlgorithmIdSha1,
-      // key
-      "59785928d72516e31272",
-      // message
-      "a3ce8899df1022e8d2d539b47bf0e309c66f84095e21438ec355bf119ce5fdcb4e73a6"
-      "19cdf36f25b369d8c38ff419997f0c59830108223606e31223483fd39edeaa4d3f0d21"
-      "198862d239c9fd26074130ff6c86493f5227ab895c8f244bd42c7afce5d147a20a5907"
-      "98c68e708e964902d124dadecdbda9dbd0051ed710e9bf",
-      // mac
-      "3c8162589aafaee024fc9a5ca50dd2336fe3eb28",
-    },
-    // L=20 set 299
-    {
-      blink::WebCryptoAlgorithmIdSha1,
-      // key
-      "ceb9aedf8d6efcf0ae52bea0fa99a9e26ae81bacea0cff4d5eecf201e3bca3c3577480"
-      "621b818fd717ba99d6ff958ea3d59b2527b019c343bb199e648090225867d994607962"
-      "f5866aa62930d75b58f6",
-      // message
-      "99958aa459604657c7bf6e4cdfcc8785f0abf06ffe636b5b64ecd931bd8a4563055924"
-      "21fc28dbcccb8a82acea2be8e54161d7a78e0399a6067ebaca3f2510274dc9f92f2c8a"
-      "e4265eec13d7d42e9f8612d7bc258f913ecb5a3a5c610339b49fb90e9037b02d684fc6"
-      "0da835657cb24eab352750c8b463b1a8494660d36c3ab2",
-      // mac
-      "4ac41ab89f625c60125ed65ffa958c6b490ea670",
-    },
-    // L=32, set 30
-    {
-      blink::WebCryptoAlgorithmIdSha256,
-      // key
-      "9779d9120642797f1747025d5b22b7ac607cab08e1758f2f3a46c8be1e25c53b8c6a8f"
-      "58ffefa176",
-      // message
-      "b1689c2591eaf3c9e66070f8a77954ffb81749f1b00346f9dfe0b2ee905dcc288baf4a"
-      "92de3f4001dd9f44c468c3d07d6c6ee82faceafc97c2fc0fc0601719d2dcd0aa2aec92"
-      "d1b0ae933c65eb06a03c9c935c2bad0459810241347ab87e9f11adb30415424c6c7f5f"
-      "22a003b8ab8de54f6ded0e3ab9245fa79568451dfa258e",
-      // mac
-      "769f00d3e6a6cc1fb426a14a4f76c6462e6149726e0dee0ec0cf97a16605ac8b",
-    },
-    // L=32, set 224
-    {
-      blink::WebCryptoAlgorithmIdSha256,
-      // key
-      "4b7ab133efe99e02fc89a28409ee187d579e774f4cba6fc223e13504e3511bef8d4f63"
-      "8b9aca55d4a43b8fbd64cf9d74dcc8c9e8d52034898c70264ea911a3fd70813fa73b08"
-      "3371289b",
-      // message
-      "138efc832c64513d11b9873c6fd4d8a65dbf367092a826ddd587d141b401580b798c69"
-      "025ad510cff05fcfbceb6cf0bb03201aaa32e423d5200925bddfadd418d8e30e18050e"
-      "b4f0618eb9959d9f78c1157d4b3e02cd5961f138afd57459939917d9144c95d8e6a94c"
-      "8f6d4eef3418c17b1ef0b46c2a7188305d9811dccb3d99",
-      // mac
-      "4f1ee7cb36c58803a8721d4ac8c4cf8cae5d8832392eed2a96dc59694252801b",
-    },
-    // L=28, Count=71
-    {
-      blink::WebCryptoAlgorithmIdSha224,
-      // key
-      "6c2539f4d0453efbbacc137794930413aeb392e029e0724715f9d943d6dcf7cdcc7fc19"
-      "7333df4fc476d5737ac3940d40eae",
-      // message
-      "1f207b3fa6c905529c9f9f7894b8941b616974df2c0cc482c400f50734f293139b5bbf9"
-      "7384adfafc56494ca0629ed0ca179daf03056e33295eb19ec8dcd4dff898281b4b9409c"
-      "a369f662d49091a225a678b1ebb75818dcb6278a2d136319f78f9ba9df5031a4f6305ee"
-      "fde5b761d2f196ee318e89bcc4acebc2e11ed3b5dc4",
-      // mac
-      "4a7d9d13705b0faba0db75356c8ee0635afff1544911c69c2fbb1ab2"
-    },
-    // L=48, Count=50
-    {
-      blink::WebCryptoAlgorithmIdSha384,
-      // key
-      "d137f3e6cc4af28554beb03ba7a97e60c9d3959cd3bb08068edbf68d402d0498c6ee0ae"
-      "9e3a20dc7d8586e5c352f605cee19",
-      // message
-      "64a884670d1c1dff555483dcd3da305dfba54bdc4d817c33ccb8fe7eb2ebf6236241031"
-      "09ec41644fa078491900c59a0f666f0356d9bc0b45bcc79e5fc9850f4543d96bc680090"
-      "44add0838ac1260e80592fbc557b2ddaf5ed1b86d3ed8f09e622e567f1d39a340857f6a"
-      "850cceef6060c48dac3dd0071fe68eb4ed2ed9aca01",
-      // mac
-      "c550fa53514da34f15e7f98ea87226ab6896cdfae25d3ec2335839f755cdc9a4992092e"
-      "70b7e5bd422784380b6396cf5"
-    },
-    // L=64, Count=65
-    {
-      blink::WebCryptoAlgorithmIdSha512,
-      // key
-      "c367aeb5c02b727883ffe2a4ceebf911b01454beb328fb5d57fc7f11bf744576aba421e2"
-      "a63426ea8109bd28ff21f53cd2bf1a11c6c989623d6ec27cdb0bbf458250857d819ff844"
-      "08b4f3dce08b98b1587ee59683af8852a0a5f55bda3ab5e132b4010e",
-      // message
-      "1a7331c8ff1b748e3cee96952190fdbbe4ee2f79e5753bbb368255ee5b19c05a4ed9f1b2"
-      "c72ff1e9b9cb0348205087befa501e7793770faf0606e9c901836a9bc8afa00d7db94ee2"
-      "9eb191d5cf3fc3e8da95a0f9f4a2a7964289c3129b512bd890de8700a9205420f28a8965"
-      "b6c67be28ba7fe278e5fcd16f0f22cf2b2eacbb9",
-      // mac
-      "4459066109cb11e6870fa9c6bfd251adfa304c0a2928ca915049704972edc560cc7c0bc3"
-      "8249e9101aae2f7d4da62eaff83fb07134efc277de72b9e4ab360425"
-    },
-  };
-
-  for (size_t test_index = 0; test_index < ARRAYSIZE_UNSAFE(kTests);
-       ++test_index) {
+  for (size_t test_index = 0; test_index < tests->GetSize(); ++test_index) {
     SCOPED_TRACE(test_index);
-    const TestCase& test = kTests[test_index];
+    base::DictionaryValue* test;
+    ASSERT_TRUE(tests->GetDictionary(test_index, &test));
+
+    blink::WebCryptoAlgorithm test_hash = GetDigestAlgorithm(test, "hash");
+    const std::vector<uint8> test_key = GetBytesFromHexString(test, "key");
+    const std::vector<uint8> test_message =
+        GetBytesFromHexString(test, "message");
+    const std::vector<uint8> test_mac = GetBytesFromHexString(test, "mac");
 
     blink::WebCryptoAlgorithm algorithm =
-        webcrypto::CreateHmacAlgorithmByHashId(test.algorithm);
+        webcrypto::CreateHmacAlgorithmByHashId(test_hash.id());
 
-    blink::WebCryptoKey key = ImportSecretKeyFromRawHexString(
-        test.key, algorithm, blink::WebCryptoKeyUsageSign);
+    blink::WebCryptoKey key = ImportSecretKeyFromRaw(
+        test_key, algorithm, blink::WebCryptoKeyUsageSign);
 
     // Verify exported raw key is identical to the imported data
     blink::WebArrayBuffer raw_key;
     EXPECT_STATUS_SUCCESS(
         ExportKeyInternal(blink::WebCryptoKeyFormatRaw, key, &raw_key));
-    ExpectArrayBufferMatchesHex(test.key, raw_key);
-
-    std::vector<uint8> message_raw = HexStringToBytes(test.message);
+    ExpectArrayBufferMatches(test_key, raw_key);
 
     blink::WebArrayBuffer output;
 
-    ASSERT_STATUS_SUCCESS(SignInternal(algorithm, key, message_raw, &output));
+    ASSERT_STATUS_SUCCESS(SignInternal(algorithm, key, test_message, &output));
 
-    ExpectArrayBufferMatchesHex(test.mac, output);
+    ExpectArrayBufferMatches(test_mac, output);
 
     bool signature_match = false;
     EXPECT_STATUS_SUCCESS(VerifySignatureInternal(
@@ -763,7 +690,7 @@ TEST_F(WebCryptoImplTest, HMACSampleSets) {
         key,
         static_cast<const unsigned char*>(output.data()),
         output.byteLength(),
-        message_raw,
+        test_message,
         &signature_match));
     EXPECT_TRUE(signature_match);
 
@@ -773,7 +700,7 @@ TEST_F(WebCryptoImplTest, HMACSampleSets) {
         key,
         static_cast<const unsigned char*>(output.data()),
         output.byteLength() - 1,
-        message_raw,
+        test_message,
         &signature_match));
     EXPECT_FALSE(signature_match);
 
@@ -783,7 +710,7 @@ TEST_F(WebCryptoImplTest, HMACSampleSets) {
         key,
         NULL,
         0,
-        message_raw,
+        test_message,
         &signature_match));
     EXPECT_FALSE(signature_match);
 
@@ -794,7 +721,7 @@ TEST_F(WebCryptoImplTest, HMACSampleSets) {
         key,
         kLongSignature,
         sizeof(kLongSignature),
-        message_raw,
+        test_message,
         &signature_match));
     EXPECT_FALSE(signature_match);
   }
@@ -802,8 +729,8 @@ TEST_F(WebCryptoImplTest, HMACSampleSets) {
 
 TEST_F(WebCryptoImplTest, AesCbcFailures) {
   const std::string key_hex = "2b7e151628aed2a6abf7158809cf4f3c";
-  blink::WebCryptoKey key = ImportSecretKeyFromRawHexString(
-      key_hex,
+  blink::WebCryptoKey key = ImportSecretKeyFromRaw(
+      HexStringToBytes(key_hex),
       webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt);
 
@@ -880,89 +807,23 @@ TEST_F(WebCryptoImplTest, AesCbcFailures) {
 }
 
 TEST_F(WebCryptoImplTest, MAYBE(AesCbcSampleSets)) {
-  struct TestCase {
-    const char* key;
-    const char* iv;
-    const char* plain_text;
-    const char* cipher_text;
-  };
-
-  TestCase kTests[] = {
-    // F.2.1 (CBC-AES128.Encrypt)
-    // http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
-    {
-      // key
-      "2b7e151628aed2a6abf7158809cf4f3c",
-
-      // iv
-      "000102030405060708090a0b0c0d0e0f",
-
-      // plain_text
-      "6bc1bee22e409f96e93d7e117393172a"
-      "ae2d8a571e03ac9c9eb76fac45af8e51"
-      "30c81c46a35ce411e5fbc1191a0a52ef"
-      "f69f2445df4f9b17ad2b417be66c3710",
-
-      // cipher_text
-      "7649abac8119b246cee98e9b12e9197d"
-      "5086cb9b507219ee95db113a917678b2"
-      "73bed6b8e3c1743b7116e69e22229516"
-      "3ff1caa1681fac09120eca307586e1a7"
-      // Padding block: encryption of {0x10, 0x10, ... 0x10}) (not given by the
-      // NIST test vector)
-      "8cb82807230e1321d3fae00d18cc2012"
-    },
-
-    // F.2.6 CBC-AES256.Decrypt [*]
-    // http://csrc.nist.gov/publications/nistpubs/800-38a/sp800-38a.pdf
-    //
-    // [*] Truncated 3 bytes off the plain text, so block 4 differs from the
-    // NIST vector.
-    {
-      // key
-      "603deb1015ca71be2b73aef0857d7781"
-      "1f352c073b6108d72d9810a30914dff4",
-
-      // iv
-      "000102030405060708090a0b0c0d0e0f",
-
-      // plain_text
-      "6bc1bee22e409f96e93d7e117393172a"
-      "ae2d8a571e03ac9c9eb76fac45af8e51"
-      "30c81c46a35ce411e5fbc1191a0a52ef"
-      // Truncated this last block to make it more interesting.
-      "f69f2445df4f9b17ad2b417be6",
-
-      // cipher_text
-      "f58c4c04d6e5f1ba779eabfb5f7bfbd6"
-      "9cfc4e967edb808d679f777bc6702c7d"
-      "39f23369a9d9bacfa530e26304231461"
-      // This block differs from source vector (due to truncation)
-      "c9aaf02a6a54e9e242ccbf48c59daca6"
-    },
-
-    // Taken from encryptor_unittest.cc (EncryptorTest.EmptyEncrypt())
-    {
-      // key
-      "3132383d5369787465656e4279746573",
-
-      // iv
-      "5377656574205369787465656e204956",
-
-      // plain_text
-      "",
-
-      // cipher_text
-      "8518b8878d34e7185e300d0fcc426396"
-    },
-  };
-
-  for (size_t index = 0; index < ARRAYSIZE_UNSAFE(kTests); index++) {
-    SCOPED_TRACE(index);
-    const TestCase& test = kTests[index];
+  scoped_ptr<base::ListValue> tests;
+  ASSERT_TRUE(ReadJsonTestFileToList("aes_cbc.json", &tests));
 
-    blink::WebCryptoKey key = ImportSecretKeyFromRawHexString(
-        test.key,
+  for (size_t test_index = 0; test_index < tests->GetSize(); ++test_index) {
+    SCOPED_TRACE(test_index);
+    base::DictionaryValue* test;
+    ASSERT_TRUE(tests->GetDictionary(test_index, &test));
+
+    std::vector<uint8> test_key = GetBytesFromHexString(test, "key");
+    std::vector<uint8> test_iv = GetBytesFromHexString(test, "iv");
+    std::vector<uint8> test_plain_text =
+        GetBytesFromHexString(test, "plain_text");
+    std::vector<uint8> test_cipher_text =
+        GetBytesFromHexString(test, "cipher_text");
+
+    blink::WebCryptoKey key = ImportSecretKeyFromRaw(
+        test_key,
         webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
         blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt);
 
@@ -970,55 +831,51 @@ TEST_F(WebCryptoImplTest, MAYBE(AesCbcSampleSets)) {
     blink::WebArrayBuffer raw_key;
     EXPECT_STATUS_SUCCESS(ExportKeyInternal(
         blink::WebCryptoKeyFormatRaw, key, &raw_key));
-    ExpectArrayBufferMatchesHex(test.key, raw_key);
-
-    std::vector<uint8> plain_text = HexStringToBytes(test.plain_text);
-    std::vector<uint8> iv = HexStringToBytes(test.iv);
+    ExpectArrayBufferMatches(test_key, raw_key);
 
     blink::WebArrayBuffer output;
 
     // Test encryption.
     EXPECT_STATUS(
         Status::Success(),
-        EncryptInternal(webcrypto::CreateAesCbcAlgorithm(iv),
+        EncryptInternal(webcrypto::CreateAesCbcAlgorithm(test_iv),
                         key,
-                        plain_text,
+                        test_plain_text,
                         &output));
-    ExpectArrayBufferMatchesHex(test.cipher_text, output);
+    ExpectArrayBufferMatches(test_cipher_text, output);
 
     // Test decryption.
-    std::vector<uint8> cipher_text = HexStringToBytes(test.cipher_text);
     EXPECT_STATUS(
         Status::Success(),
-        DecryptInternal(webcrypto::CreateAesCbcAlgorithm(iv),
+        DecryptInternal(webcrypto::CreateAesCbcAlgorithm(test_iv),
                         key,
-                        cipher_text,
+                        test_cipher_text,
                         &output));
-    ExpectArrayBufferMatchesHex(test.plain_text, output);
+    ExpectArrayBufferMatches(test_plain_text, output);
 
     const unsigned int kAesCbcBlockSize = 16;
 
     // Decrypt with a padding error by stripping the last block. This also ends
     // up testing decryption over empty cipher text.
-    if (cipher_text.size() >= kAesCbcBlockSize) {
+    if (test_cipher_text.size() >= kAesCbcBlockSize) {
       EXPECT_STATUS(
           Status::Error(),
-          DecryptInternal(webcrypto::CreateAesCbcAlgorithm(iv),
+          DecryptInternal(webcrypto::CreateAesCbcAlgorithm(test_iv),
                           key,
-                          &cipher_text[0],
-                          cipher_text.size() - kAesCbcBlockSize,
+                          &test_cipher_text[0],
+                          test_cipher_text.size() - kAesCbcBlockSize,
                           &output));
     }
 
     // Decrypt cipher text which is not a multiple of block size by stripping
     // a few bytes off the cipher text.
-    if (cipher_text.size() > 3) {
+    if (test_cipher_text.size() > 3) {
       EXPECT_STATUS(
           Status::Error(),
-          DecryptInternal(webcrypto::CreateAesCbcAlgorithm(iv),
+          DecryptInternal(webcrypto::CreateAesCbcAlgorithm(test_iv),
                           key,
-                          &cipher_text[0],
-                          cipher_text.size() - 3,
+                          &test_cipher_text[0],
+                          test_cipher_text.size() - 3,
                           &output));
     }
   }
@@ -1716,8 +1573,8 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaEsRoundTrip)) {
   blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
   blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
   ImportRsaKeyPair(
-      kPublicKeySpkiDerHex,
-      kPrivateKeyPkcs8DerHex,
+      HexStringToBytes(kPublicKeySpkiDerHex),
+      HexStringToBytes(kPrivateKeyPkcs8DerHex),
       algorithm,
       false,
       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
@@ -1763,70 +1620,26 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaEsRoundTrip)) {
 }
 
 TEST_F(WebCryptoImplTest, MAYBE(RsaEsKnownAnswer)) {
+  scoped_ptr<base::Value> json;
+  ASSERT_TRUE(ReadJsonTestFile("rsa_es.json", &json));
+  base::DictionaryValue* test = NULL;
+  ASSERT_TRUE(json->GetAsDictionary(&test));
+
   // Because the random data in PKCS1.5 padding makes the encryption output non-
   // deterministic, we cannot easily do a typical known-answer test for RSA
   // encryption / decryption. Instead we will take a known-good encrypted
   // message, decrypt it, re-encrypt it, then decrypt again, verifying that the
   // original known cleartext is the result.
 
-  // The RSA public and private keys used for this test are produced by the
-  // openssl command line:
-  // % openssl genrsa -out pair.pem 1024
-  // % openssl rsa -in pair.pem -out spki.der -outform DER -pubout
-  // % openssl pkcs8 -topk8 -inform PEM -outform DER -in pair.pem -out
-  //     pkcs8.der -nocrypt
-  // % xxd -p spki.der
-  // % xxd -p pkcs8.der
-  const std::string rsa_spki_der_hex =
-      "30819f300d06092a864886f70d010101050003818d0030818902818100a8"
-      "d30894b93f376f7822229bfd2483e50da944c4ab803ca31979e0f47e70bf"
-      "683c687c6b3e80f280a237cea3643fd1f7f10f7cc664dbc2ecd45be53e1c"
-      "9b15a53c37dbdad846c0f8340c472abc7821e4aa7df185867bf38228ac3e"
-      "cc1d97d3c8b57e21ea6ba57b2bc3814a436e910ee8ab64a0b7743a927e94"
-      "4d3420401f7dd50203010001";
-  const std::string rsa_pkcs8_der_hex =
-      "30820276020100300d06092a864886f70d0101010500048202603082025c"
-      "02010002818100a8d30894b93f376f7822229bfd2483e50da944c4ab803c"
-      "a31979e0f47e70bf683c687c6b3e80f280a237cea3643fd1f7f10f7cc664"
-      "dbc2ecd45be53e1c9b15a53c37dbdad846c0f8340c472abc7821e4aa7df1"
-      "85867bf38228ac3ecc1d97d3c8b57e21ea6ba57b2bc3814a436e910ee8ab"
-      "64a0b7743a927e944d3420401f7dd5020301000102818100896cdffb50a0"
-      "691bd00ad9696933243a7c5861a64684e8d74b91aed0d76c28234da9303e"
-      "8c6ea2f89b141a9d5ea9a4ddd3d8eb9503dcf05ba0b1fd76060b281e3ae4"
-      "b9d497fb5519bdf1127db8ad412d6a722686c78df3e3002acca960c6b2a2"
-      "42a83ace5410693c03ce3d74cb9c9a7bacc8e271812920d1f53fee9312ef"
-      "4eb1024100d09c14418ce92af7cc62f7cdc79836d8c6e3d0d33e7229cc11"
-      "d732cbac75aa4c56c92e409a3ccbe75d4ce63ac5adca33080690782c6371"
-      "e3628134c3534ca603024100cf2d3206f6deea2f39b70351c51f85436200"
-      "5aa8f643e49e22486736d536e040dc30a2b4f9be3ab212a88d1891280874"
-      "b9a170cdeb22eaf61c27c4b082c7d1470240638411a5b3b307ec6e744802"
-      "c2d4ba556f8bfe72c7b76e790b89bd91ac13f5c9b51d04138d80b3450c1d"
-      "4337865601bf96748b36c8f627be719f71ac3c70b441024065ce92cfe34e"
-      "a58bf173a2b8f3024b4d5282540ac581957db3e11a7f528535ec098808dc"
-      "a0013ffcb3b88a25716757c86c540e07d2ad8502cdd129118822c30f0240"
-      "420a4983040e9db46eb29f1315a0d7b41cf60428f7460fce748e9a1a7d22"
-      "d7390fa328948e7e9d1724401374e99d45eb41474781201378a4330e8e80"
-      "8ce63551";
-
-  // Similarly, the cleartext and public key encrypted ciphertext for this test
-  // are also produced by openssl. Note that since we are using a 1024-bit key,
-  // the cleartext size must be less than or equal to 117 bytes (modulusLength /
-  // 8 - 11).
-  // % openssl rand -out cleartext.bin 64
-  // % openssl rsautl -encrypt -inkey spki.der -keyform DER -pubin -in
-  //     cleartext.bin -out ciphertext.bin
-  // % xxd -p cleartext.bin
-  // % xxd -p ciphertext.bin
-  const std::string cleartext_hex =
-      "ec358ed141c45d7e03d4c6338aebad718e8bcbbf8f8ee6f8d9f4b9ef06d8"
-      "84739a398c6bcbc688418b2ff64761dc0ccd40e7d52bed03e06946d0957a"
-      "eef9e822";
-  const std::string ciphertext_hex =
-      "6106441c2b7a4b1a16260ed1ae4fe6135247345dc8e674754bbda6588c6c"
-      "0d95a3d4d26bb34cdbcbe327723e80343bd7a15cd4c91c3a44e6cb9c6cd6"
-      "7ad2e8bf41523188d9b36dc364a838642dcbc2c25e85dfb2106ba47578ca"
-      "3bbf8915055aea4fa7c3cbfdfbcc163f04c234fb6d847f39bab9612ecbee"
-      "04626e945c3ccf42";
+  const std::vector<uint8> rsa_spki_der =
+      GetBytesFromHexString(test, "rsa_spki_der");
+
+  const std::vector<uint8> rsa_pkcs8_der =
+      GetBytesFromHexString(test, "rsa_pkcs8_der");
+  const std::vector<uint8> ciphertext =
+      GetBytesFromHexString(test, "ciphertext");
+  const std::vector<uint8> cleartext =
+      GetBytesFromHexString(test, "cleartext");
 
   // Import the key pair.
   blink::WebCryptoAlgorithm algorithm =
@@ -1834,8 +1647,8 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaEsKnownAnswer)) {
   blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
   blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
   ImportRsaKeyPair(
-      rsa_spki_der_hex,
-      rsa_pkcs8_der_hex,
+      rsa_spki_der,
+      rsa_pkcs8_der,
       algorithm,
       false,
       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
@@ -1848,10 +1661,10 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaEsKnownAnswer)) {
   ASSERT_STATUS_SUCCESS(DecryptInternal(
       algorithm,
       private_key,
-      HexStringToBytes(ciphertext_hex),
+      ciphertext,
       &decrypted_data));
   EXPECT_FALSE(decrypted_data.isNull());
-  ExpectArrayBufferMatchesHex(cleartext_hex, decrypted_data);
+  ExpectArrayBufferMatches(cleartext, decrypted_data);
 
   // Encrypt this decrypted data with the public key.
   blink::WebArrayBuffer encrypted_data;
@@ -1873,7 +1686,7 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaEsKnownAnswer)) {
       encrypted_data.byteLength(),
       &decrypted_data));
   EXPECT_FALSE(decrypted_data.isNull());
-  ExpectArrayBufferMatchesHex(cleartext_hex, decrypted_data);
+  ExpectArrayBufferMatches(cleartext, decrypted_data);
 }
 
 TEST_F(WebCryptoImplTest, MAYBE(RsaEsFailures)) {
@@ -1883,8 +1696,8 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaEsFailures)) {
   blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
   blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
   ImportRsaKeyPair(
-      kPublicKeySpkiDerHex,
-      kPrivateKeyPkcs8DerHex,
+      HexStringToBytes(kPublicKeySpkiDerHex),
+      HexStringToBytes(kPrivateKeyPkcs8DerHex),
       algorithm,
       false,
       blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
@@ -1954,8 +1767,8 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaSsaSignVerifyFailures)) {
   blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
   blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
   ImportRsaKeyPair(
-      kPublicKeySpkiDerHex,
-      kPrivateKeyPkcs8DerHex,
+      HexStringToBytes(kPublicKeySpkiDerHex),
+      HexStringToBytes(kPrivateKeyPkcs8DerHex),
       algorithm,
       false,
       blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify,
@@ -2078,202 +1891,8 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaSsaSignVerifyFailures)) {
 }
 
 TEST_F(WebCryptoImplTest, MAYBE(RsaSignVerifyKnownAnswer)) {
-  // Use the NIST test vectors from Example 1 of
-  // ftp://ftp.rsa.com/pub/rsalabs/tmp/pkcs1v15sign-vectors.txt
-  // These vectors are known answers for RSA PKCS#1 v1.5 Signature with a SHA-1
-  // digest, using a predefined key pair.
-
-  struct TestCase {
-    const std::string message_hex;
-    const std::string signature_hex;
-  };
-
-  // The following data are the input messages and corresponding computed RSA
-  // PKCS#1 v1.5 signatures from the NIST link above.
-  const TestCase kTests[] = {
-      // PKCS#1 v1.5 Signature Example 1.1
-      {"cdc87da223d786df3b45e0bbbc721326d1ee2af806cc315475cc6f0d9c66e1b6"
-       "2371d45ce2392e1ac92844c310102f156a0d8d52c1f4c40ba3aa65095786cb76"
-       "9757a6563ba958fed0bcc984e8b517a3d5f515b23b8a41e74aa867693f90dfb0"
-       "61a6e86dfaaee64472c00e5f20945729cbebe77f06ce78e08f4098fba41f9d61"
-       "93c0317e8b60d4b6084acb42d29e3808a3bc372d85e331170fcbf7cc72d0b71c"
-       "296648b3a4d10f416295d0807aa625cab2744fd9ea8fd223c42537029828bd16"
-       "be02546f130fd2e33b936d2676e08aed1b73318b750a0167d0",
-       "6bc3a06656842930a247e30d5864b4d819236ba7c68965862ad7dbc4e24af28e"
-       "86bb531f03358be5fb74777c6086f850caef893f0d6fcc2d0c91ec013693b4ea"
-       "00b80cd49aac4ecb5f8911afe539ada4a8f3823d1d13e472d1490547c659c761"
-       "7f3d24087ddb6f2b72096167fc097cab18e9a458fcb634cdce8ee35894c484d7"},
-      // PKCS#1 v1.5 Signature Example 1.2
-      {"851384cdfe819c22ed6c4ccb30daeb5cf059bc8e1166b7e3530c4c233e2b5f8f"
-       "71a1cca582d43ecc72b1bca16dfc7013226b9e",
-       "84fd2ce734ec1da828d0f15bf49a8707c15d05948136de537a3db421384167c8"
-       "6fae022587ee9e137daee754738262932d271c744c6d3a189ad4311bdb020492"
-       "e322fbddc40406ea860d4e8ea2a4084aa98b9622a446756fdb740ddb3d91db76"
-       "70e211661bbf8709b11c08a70771422d1a12def29f0688a192aebd89e0f896f8"},
-      // PKCS#1 v1.5 Signature Example1.3
-      {"a4b159941761c40c6a82f2b80d1b94f5aa2654fd17e12d588864679b54cd04ef"
-       "8bd03012be8dc37f4b83af7963faff0dfa225477437c48017ff2be8191cf3955"
-       "fc07356eab3f322f7f620e21d254e5db4324279fe067e0910e2e81ca2cab31c7"
-       "45e67a54058eb50d993cdb9ed0b4d029c06d21a94ca661c3ce27fae1d6cb20f4"
-       "564d66ce4767583d0e5f060215b59017be85ea848939127bd8c9c4d47b51056c"
-       "031cf336f17c9980f3b8f5b9b6878e8b797aa43b882684333e17893fe9caa6aa"
-       "299f7ed1a18ee2c54864b7b2b99b72618fb02574d139ef50f019c9eef4169713"
-       "38e7d470",
-       "0b1f2e5180e5c7b4b5e672929f664c4896e50c35134b6de4d5a934252a3a245f"
-       "f48340920e1034b7d5a5b524eb0e1cf12befef49b27b732d2c19e1c43217d6e1"
-       "417381111a1d36de6375cf455b3c9812639dbc27600c751994fb61799ecf7da6"
-       "bcf51540afd0174db4033188556675b1d763360af46feeca5b60f882829ee7b2"},
-      // PKCS#1 v1.5 Signature Example 1.4
-      {"bc656747fa9eafb3f0",
-       "45607ad611cf5747a41ac94d0ffec878bdaf63f6b57a4b088bf36e34e109f840"
-       "f24b742ada16102dabf951cbc44f8982e94ed4cd09448d20ec0efa73545f80b6"
-       "5406bed6194a61c340b4ad1568cbb75851049f11af1734964076e02029aee200"
-       "e40e80be0f4361f69841c4f92a4450a2286d43289b405554c54d25c6ecb584f4"},
-      // PKCS#1 v1.5 Signature Example 1.5
-      {"b45581547e5427770c768e8b82b75564e0ea4e9c32594d6bff706544de0a8776"
-       "c7a80b4576550eee1b2acabc7e8b7d3ef7bb5b03e462c11047eadd00629ae575"
-       "480ac1470fe046f13a2bf5af17921dc4b0aa8b02bee6334911651d7f8525d10f"
-       "32b51d33be520d3ddf5a709955a3dfe78283b9e0ab54046d150c177f037fdccc"
-       "5be4ea5f68b5e5a38c9d7edcccc4975f455a6909b4",
-       "54be9d90877515f450279c15b5f61ad6f15ecc95f18cbed82b65b1667a575809"
-       "587994668044f3bc2ae7f884501f64f0b43f588cfa205a6ab704328c2d4ab92a"
-       "7ae13440614d3e085f401da9ad28e2105e4a0edb681a6424df047388ce051ee9"
-       "df7bc2163fe347520ad51ccd518064383e741acad3cbdc2cb5a7c68e868464c2"},
-      // PKCS#1 v1.5 Signature Example 1.6
-      {"10aae9a0ab0b595d0841207b700d48d75faedde3b775cd6b4cc88ae06e4694ec"
-       "74ba18f8520d4f5ea69cbbe7cc2beba43efdc10215ac4eb32dc302a1f53dc6c4"
-       "352267e7936cfebf7c8d67035784a3909fa859c7b7b59b8e39c5c2349f1886b7"
-       "05a30267d402f7486ab4f58cad5d69adb17ab8cd0ce1caf5025af4ae24b1fb87"
-       "94c6070cc09a51e2f9911311e3877d0044c71c57a993395008806b723ac38373"
-       "d395481818528c1e7053739282053529510e935cd0fa77b8fa53cc2d474bd4fb"
-       "3cc5c672d6ffdc90a00f9848712c4bcfe46c60573659b11e6457e861f0f604b6"
-       "138d144f8ce4e2da73",
-       "0e6ff63a856b9cbd5dbe423183122047dd39d6f76d1b2310e546fe9ee73b33ef"
-       "a7c78f9474455c9e5b88cb383aafc3698668e7b7a59a9cbb5b0897b6c5afb7f8"
-       "bac4b924e98d760a15fc43d2814ab2d5187f79bed9915a93397ebc22a7677506"
-       "a02e076d3ffdc0441dbd4db00453dc28d830e0573f77b817b505c38b4a4bb5d0"},
-      // PKCS#1 v1.5 Signature Example 1.7
-      {"efb5da1b4d1e6d9a5dff92d0184da7e31f877d1281ddda625664869e8379e67a"
-       "d3b75eae74a580e9827abd6eb7a002cb5411f5266797768fb8e95ae40e3e8b34"
-       "66f5ab15d69553952939ec23e61d58497fac76aa1c0bb5a3cb4a54383587c7bb"
-       "78d13eefda205443e6ce4365802df55c64713497984e7ca96722b3edf84d56",
-       "8385d58533a995f72df262b70f40b391ddf515f464b9d2cc2d66398fc05689d8"
-       "11632946d62eabdca7a31fcf6cd6c981d28bbc29083e4a6d5b2b378ca4e540f0"
-       "60b96d53ad2693f82178b94e2e2f86b9accfa02025107e062ab7080175684501"
-       "028f676461d81c008fe4750671649970878fc175cf98e96b2ecbf6874d77dacb"},
-      // PKCS#1 v1.5 Signature Example 1.8
-      {"53bb58ce42f1984940552657233b14969af365c0a561a4132af18af39432280e"
-       "3e437082434b19231837184f02cf2b2e726bebf74d7ae3256d8b72f3eafdb134"
-       "d33de06f2991d299d59f5468d43b9958d6a968f5969edbbc6e7185cbc716c7c9"
-       "45dafa9cc71ddfaaa01094a452ddf5e2407320400bf05ea9729cafbf0600e788"
-       "07ef9462e3fde32ed7d981a56f4751ef64fb4549910ecc911d728053b3994300"
-       "4740e6f5821fe8d75c0617bf2c6b24bbfc34013fc95f0dedf5ba297f504fb833"
-       "da2a436d1d8ff1cc5193e2a64389fced918e7feb6716330f66801db9497549cf"
-       "1d3bd97cf1bc6255",
-       "8e1f3d26ec7c6bbb8c54c5d25f3120587803af6d3c2b99a37ced6a3657d4ae54"
-       "266f63fffde660c866d65d0ab0589e1d12d9ce6054b05c8668ae127171ccaae7"
-       "f1cd409677f52157b6123ab227f27a00966d1439b42a32169d1070394026fc8b"
-       "c93545b1ac252d0f7da751c02e33a47831fbd71514c2bbbd3adb6740c0fd68ad"},
-      // PKCS#1 v1.5 Signature Example 1.9
-      {"27cadc698450945f204ec3cf8c6cbd8ceb4cc0cbe312274fa96b04deac855160"
-       "c0e04e4ac5d38210c27c",
-       "7b63f9223356f35f6117f68c8f8220034fc2384ab5dc6904141f139314d6ee89"
-       "f54ec6ffd18c413a23c5931c7fbb13c555ccfd590e0eaa853c8c94d2520cd425"
-       "0d9a05a193b65dc749b82478af0156ee1de55ddad33ec1f0099cad6c891a3617"
-       "c7393d05fbfbbb00528a001df0b204ebdf1a341090dea89f870a877458427f7b"},
-      // PKCS#1 v1.5 Signature Example 1.10
-      {"716407e901b9ef92d761b013fd13eb7ad72aed",
-       "2a22dbe3774d5b297201b55a0f17f42dce63b7845cb325cfe951d0badb5c5a14"
-       "472143d896c86cc339f83671164215abc97862f2151654e75a3b357c37311b3d"
-       "7268cab540202e23bee52736f2cd86cce0c7dbde95e1c600a47395dc5eb0a472"
-       "153fbc4fb21b643e0c04ae14dd37e97e617a7567c89652219781001ba6f83298"},
-      // PKCS#1 v1.5 Signature Example 1.11
-      {"46c24e4103001629c712dd4ce8d747ee595d6c744ccc4f71347d9b8abf49d1b8"
-       "fb2ef91b95dc899d4c0e3d2997e638f4cf3f68e0498de5aabd13f0dfe02ff26b"
-       "a4379104e78ffa95ffbd15067ef8cbd7eb7860fecc71abe13d5c720a66851f2d"
-       "efd4e795054d7bec024bb422a46a7368b56d95b47aebafbeadd612812593a70d"
-       "b9f96d451ee15edb299308d777f4bb68ed3377c32156b41b7a9c92a14c8b8114"
-       "4399c56a5a432f4f770aa97da8415d0bda2e813206031e70620031c881d616bf"
-       "fd5f03bf147c1e73766c26246208",
-       "12235b0b406126d9d260d447e923a11051fb243079f446fd73a70181d53634d7"
-       "a0968e4ee27777eda63f6e4a3a91ad5985998a4848da59ce697b24bb332fa2ad"
-       "9ce462ca4affdc21dab908e8ce15af6eb9105b1abcf39142aa17b34c4c092386"
-       "a7abbfe028afdbebc14f2ce26fbee5edeca11502d39a6b7403154843d98a62a7"},
-      // PKCS#1 v1.5 Signature Example 1.12
-      {"bc99a932aa16d622bfff79c50b4c42358673261129e28d6a918ff1b0f1c4f46a"
-       "d8afa98b0ca0f56f967975b0a29be882e93b6cd3fc33e1faef72e52b2ae0a3f1"
-       "2024506e25690e902e782982145556532284cf505789738f4da31fa1333d3af8"
-       "62b2ba6b6ce7ab4cce6aba",
-       "872ec5ad4f1846256f17e9936ac50e43e9963ea8c1e76f15879b7874d77d122a"
-       "609dc8c561145b94bf4ffdffdeb17e6e76ffc6c10c0747f5e37a9f434f5609e7"
-       "9da5250215a457afdf12c6507cc1551f54a28010595826a2c9b97fa0aa851cc6"
-       "8b705d7a06d720ba027e4a1c0b019500fb63b78071684dcfa9772700b982dc66"},
-      // PKCS#1 v1.5 Signature Example 1.13
-      {"731e172ac063992c5b11ba170dfb23bb000d47ba195329cf278061037381514c"
-       "146064c5285db130dd5bae98b772225950eab05d3ea996f6fffb9a8c8622913f"
-       "279914c89ada4f3dd77666a868bfcbff2b95b7daf453d4e2c9d75beee7f8e709"
-       "05e4066a4f73aecc67f956aa5a3292b8488c917d317cfdc86253e690381e15ab",
-       "76204eacc1d63ec1d6ad5bd0692e1a2f686df6e64ca945c77a824de212efa6d9"
-       "782d81b4591403ff4020620298c07ebd3a8a61c5bf4dad62cbfc4ae6a03937be"
-       "4b49a216d570fc6e81872937876e27bd19cf601effc30ddca573c9d56cd4569b"
-       "db4851c450c42cb21e738cdd61027b8be5e9b410fc46aa3f29e4be9e64451346"},
-      // PKCS#1 v1.5 Signature Example 1.14
-      {"0211382683a74d8d2a2cb6a06550563be1c26ca62821e4ff163b720464fc3a28"
-       "d91bedddc62749a5538eaf41fbe0c82a77e06ad99383c9e985ffb8a93fd4d7c5"
-       "8db51ad91ba461d69a8fd7ddabe2496757a0c49122c1a79a85cc0553e8214d03"
-       "6dfe0185efa0d05860c612fa0882c82d246e5830a67355dff18a2c36b732f988"
-       "cfedc562264c6254b40fcabb97b760947568dcd6a17cda6ee8855bddbab93702"
-       "471aa0cfb1bed2e13118eba1175b73c96253c108d0b2aba05ab8e17e84392e20"
-       "085f47404d8365527dc3fb8f2bb48a50038e71361ccf973407",
-       "525500918331f1042eae0c5c2054aa7f92deb26991b5796634f229daf9b49eb2"
-       "054d87319f3cfa9b466bd075ef6699aea4bd4a195a1c52968b5e2b75e092d846"
-       "ea1b5cc27905a8e1d5e5de0edfdb21391ebb951864ebd9f0b0ec35b654287136"
-       "0a317b7ef13ae06af684e38e21b1e19bc7298e5d6fe0013a164bfa25d3e7313d"},
-      // PKCS#1 v1.5 Signature Example 1.15
-      {"fc6b700d22583388ab2f8dafcaf1a05620698020da4bae44dafbd0877b501250"
-       "6dc3181d5c66bf023f348b41fd9f94795ab96452a4219f2d39d72af359cf1956"
-       "51c7",
-       "4452a6cc2626b01e95ab306df0d0cc7484fbab3c22e9703283567f66eadc248d"
-       "bda58fce7dd0c70cce3f150fca4b369dff3b6237e2b16281ab55b53fb13089c8"
-       "5cd265056b3d62a88bfc2135b16791f7fbcab9fd2dc33becb617be419d2c0461"
-       "42a4d47b338314552edd4b6fe9ce1104ecec4a9958d7331e930fc09bf08a6e64"},
-      // PKCS#1 v1.5 Signature Example 1.16
-      {"13ba086d709cfa5fedaa557a89181a6140f2300ed6d7c3febb6cf68abebcbc67"
-       "8f2bca3dc2330295eec45bb1c4075f3ada987eae88b39c51606cb80429e649d9"
-       "8acc8441b1f8897db86c5a4ce0abf28b1b81dca3667697b850696b74a5ebd85d"
-       "ec56c90f8abe513efa857853720be319607921bca947522cd8fac8cace5b827c"
-       "3e5a129e7ee57f6b84932f14141ac4274e8cbb46e6912b0d3e2177d499d1840c"
-       "d47d4d7ae0b4cdc4d3",
-       "1f3b5a87db72a2c97bb3eff2a65a301268eacd89f42abc1098c1f2de77b0832a"
-       "65d7815feb35070063f221bb3453bd434386c9a3fde18e3ca1687fb649e86c51"
-       "d658619dde5debb86fe15491ff77ab748373f1be508880d66ea81e870e91cdf1"
-       "704875c17f0b10103188bc64eef5a3551b414c733670215b1a22702562581ab1"},
-      // PKCS#1 v1.5 Signature Example 1.17
-      {"eb1e5935",
-       "370cb9839ae6074f84b2acd6e6f6b7921b4b523463757f6446716140c4e6c0e7"
-       "5bec6ad0197ebfa86bf46d094f5f6cd36dca3a5cc73c8bbb70e2c7c9ab5d964e"
-       "c8e3dfde481b4a1beffd01b4ad15b31ae7aebb9b70344a9411083165fdf9c375"
-       "4bbb8b94dd34bd4813dfada1f6937de4267d5597ca09a31e83d7f1a79dd19b5e"},
-      // PKCS#1 v1.5 Signature Example 1.18
-      {"6346b153e889c8228209630071c8a57783f368760b8eb908cfc2b276",
-       "2479c975c5b1ae4c4e940f473a9045b8bf5b0bfca78ec29a38dfbedc8a749b7a"
-       "2692f7c52d5bc7c831c7232372a00fed3b6b49e760ec99e074ff2eead5134e83"
-       "05725dfa39212b84bd4b8d80bc8bc17a512823a3beb18fc08e45ed19c26c8177"
-       "07d67fb05832ef1f12a33e90cd93b8a780319e2963ca25a2af7b09ad8f595c21"},
-      // PKCS#1 v1.5 Signature Example 1.19
-      {"64702db9f825a0f3abc361974659f5e9d30c3aa4f56feac69050c72905e77fe0"
-       "c22f88a378c21fcf45fe8a5c717302093929",
-       "152f3451c858d69594e6567dfb31291c1ee7860b9d15ebd5a5edd276ac3e6f7a"
-       "8d1480e42b3381d2be023acf7ebbdb28de3d2163ae44259c6df98c335d045b61"
-       "dac9dba9dbbb4e6ab4a083cd76b580cbe472206a1a9fd60680ceea1a570a29b0"
-       "881c775eaef5525d6d2f344c28837d0aca422bbb0f1aba8f6861ae18bd73fe44"},
-      // PKCS#1 v1.5 Signature Example 1.20
-      {"941921de4a1c9c1618d6f3ca3c179f6e29bae6ddf9a6a564f929e3ce82cf3265"
-       "d7837d5e692be8dcc9e86c",
-       "7076c287fc6fff2b20537435e5a3107ce4da10716186d01539413e609d27d1da"
-       "6fd952c61f4bab91c045fa4f8683ecc4f8dde74227f773cff3d96db84718c494"
-       "4b06affeba94b725f1b07d3928b2490a85c2f1abf492a9177a7cd2ea0c966875"
-       "6f825bbec900fa8ac3824e114387ef573780ca334882387b94e5aad7a27a28dc"}};
+  scoped_ptr<base::ListValue> tests;
+  ASSERT_TRUE(ReadJsonTestFileToList("pkcs1v15_sign.json", &tests));
 
   // Import the key pair.
   blink::WebCryptoAlgorithm algorithm = CreateRsaAlgorithmWithInnerHash(
@@ -2282,8 +1901,8 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaSignVerifyKnownAnswer)) {
   blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
   blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
   ImportRsaKeyPair(
-      kPublicKeySpkiDerHex,
-      kPrivateKeyPkcs8DerHex,
+      HexStringToBytes(kPublicKeySpkiDerHex),
+      HexStringToBytes(kPrivateKeyPkcs8DerHex),
       algorithm,
       false,
       blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify,
@@ -2292,22 +1911,28 @@ TEST_F(WebCryptoImplTest, MAYBE(RsaSignVerifyKnownAnswer)) {
 
   // Validate the signatures are computed and verified as expected.
   blink::WebArrayBuffer signature;
-  for (size_t idx = 0; idx < ARRAYSIZE_UNSAFE(kTests); ++idx) {
-    SCOPED_TRACE(idx);
-    const TestCase& test = kTests[idx];
-    const std::vector<uint8> message = HexStringToBytes(test.message_hex);
+  for (size_t test_index = 0; test_index < tests->GetSize(); ++test_index) {
+    SCOPED_TRACE(test_index);
+
+    base::DictionaryValue* test;
+    ASSERT_TRUE(tests->GetDictionary(test_index, &test));
+
+    std::vector<uint8> test_message =
+        GetBytesFromHexString(test, "message_hex");
+    std::vector<uint8> test_signature =
+        GetBytesFromHexString(test, "signature_hex");
 
     signature.reset();
     ASSERT_STATUS_SUCCESS(
-        SignInternal(algorithm, private_key, message, &signature));
-    ExpectArrayBufferMatchesHex(test.signature_hex, signature);
+        SignInternal(algorithm, private_key, test_message, &signature));
+    ExpectArrayBufferMatches(test_signature, signature);
 
     bool is_match = false;
     ASSERT_STATUS_SUCCESS(VerifySignatureInternal(
         algorithm,
         public_key,
-        HexStringToBytes(test.signature_hex),
-        message,
+        test_signature,
+        test_message,
         &is_match));
     EXPECT_TRUE(is_match);
   }
@@ -2411,109 +2036,29 @@ TEST_F(WebCryptoImplTest, MAYBE(AesGcmSampleSets)) {
     return;
   }
 
-  struct TestCase {
-    const char* key;
-    const char* iv;
-    const char* plain_text;
-    const char* cipher_text;
-    const char* additional_data;
-    const char* authentication_tag;
-  };
-
-  // These tests come from the NIST GCM test vectors:
-  // http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip
-  //
-  // Both encryption and decryption are expected to work.
-  TestCase kTests[] = {
-    // [Keylen = 128]
-    // [IVlen = 96]
-    // [PTlen = 0]
-    // [AADlen = 0]
-    // [Taglen = 128]
-    {
-      // key
-      "cf063a34d4a9a76c2c86787d3f96db71",
-      // iv
-      "113b9785971864c83b01c787",
-      // plain_text
-      "",
-      // cipher_text
-      "",
-      // additional_data
-      "",
-      // authentication_tag
-      "72ac8493e3a5228b5d130a69d2510e42",
-    },
-
-    // [Keylen = 128]
-    // [IVlen = 96]
-    // [PTlen = 0]
-    // [AADlen = 128]
-    // [Taglen = 120]
-    {
-      // key
-      "6dfa1a07c14f978020ace450ad663d18",
-      // iv
-      "34edfa462a14c6969a680ec1",
-      // plain_text
-      "",
-      // cipher_text
-      "",
-      // additional_data
-      "2a35c7f5f8578e919a581c60500c04f6",
-      // authentication_tag
-      "751f3098d59cf4ea1d2fb0853bde1c"
-    },
-
-    // [Keylen = 128]
-    // [IVlen = 96]
-    // [PTlen = 128]
-    // [AADlen = 128]
-    // [Taglen = 112]
-    {
-      // key
-      "ed6cd876ceba555706674445c229c12d",
-      // iv
-      "92ecbf74b765bc486383ca2e",
-      // plain_text
-      "bfaaaea3880d72d4378561e2597a9b35",
-      // cipher_text
-      "bdd2ed6c66fa087dce617d7fd1ff6d93",
-      // additional_data
-      "95bd10d77dbe0e87fb34217f1a2e5efe",
-      // authentication_tag
-      "ba82e49c55a22ed02ca67da4ec6f"
-    },
-
-    // [Keylen = 192]
-    // [IVlen = 96]
-    // [PTlen = 128]
-    // [AADlen = 384]
-    // [Taglen = 112]
-    {
-      // key
-      "ae7972c025d7f2ca3dd37dcc3d41c506671765087c6b61b8",
-      // iv
-      "984c1379e6ba961c828d792d",
-      // plain_text
-      "d30b02c343487105219d6fa080acc743",
-      // cipher_text
-      "c4489fa64a6edf80e7e6a3b8855bc37c",
-      // additional_data
-      "edd8f630f9bbc31b0acf122998f15589d6e6e3e1a3ec89e0c6a6ece751610e"
-      "bbf57fdfb9d82028ff1d9faebe37a268c1",
-      // authentication_tag
-      "772ee7de0f91a981c36c93a35c88"
-    }
-  };
+  scoped_ptr<base::ListValue> tests;
+  ASSERT_TRUE(ReadJsonTestFileToList("aes_gcm.json", &tests));
 
   // Note that WebCrypto appends the authentication tag to the ciphertext.
-  for (size_t index = 0; index < ARRAYSIZE_UNSAFE(kTests); index++) {
-    SCOPED_TRACE(index);
-    const TestCase& test = kTests[index];
+  for (size_t test_index = 0; test_index < tests->GetSize(); ++test_index) {
+    SCOPED_TRACE(test_index);
+    base::DictionaryValue* test;
+    ASSERT_TRUE(tests->GetDictionary(test_index, &test));
 
-    blink::WebCryptoKey key = ImportSecretKeyFromRawHexString(
-        test.key,
+    const std::vector<uint8> test_key = GetBytesFromHexString(test, "key");
+    const std::vector<uint8> test_iv = GetBytesFromHexString(test, "iv");
+    const std::vector<uint8> test_additional_data =
+        GetBytesFromHexString(test, "additional_data");
+    const std::vector<uint8> test_plain_text =
+        GetBytesFromHexString(test, "plain_text");
+    const std::vector<uint8> test_authentication_tag =
+        GetBytesFromHexString(test, "authentication_tag");
+    const unsigned int test_tag_size_bits = test_authentication_tag.size() * 8;
+    const std::vector<uint8> test_cipher_text =
+        GetBytesFromHexString(test, "cipher_text");
+
+    blink::WebCryptoKey key = ImportSecretKeyFromRaw(
+        test_key,
         webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesGcm),
         blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt);
 
@@ -2521,18 +2066,8 @@ TEST_F(WebCryptoImplTest, MAYBE(AesGcmSampleSets)) {
     blink::WebArrayBuffer raw_key;
     EXPECT_STATUS_SUCCESS(ExportKeyInternal(
         blink::WebCryptoKeyFormatRaw, key, &raw_key));
-    ExpectArrayBufferMatchesHex(test.key, raw_key);
 
-    const std::vector<uint8> test_iv = HexStringToBytes(test.iv);
-    const std::vector<uint8> test_additional_data =
-        HexStringToBytes(test.additional_data);
-    const std::vector<uint8> test_plain_text =
-        HexStringToBytes(test.plain_text);
-    const std::vector<uint8> test_authentication_tag =
-        HexStringToBytes(test.authentication_tag);
-    const unsigned int test_tag_size_bits = test_authentication_tag.size() * 8;
-    const std::vector<uint8> test_cipher_text =
-        HexStringToBytes(test.cipher_text);
+    ExpectArrayBufferMatches(test_key, raw_key);
 
     // Test encryption.
     std::vector<uint8> cipher_text;
@@ -2541,15 +2076,15 @@ TEST_F(WebCryptoImplTest, MAYBE(AesGcmSampleSets)) {
                                         test_tag_size_bits, test_plain_text,
                                         &cipher_text, &authentication_tag));
 
-    ExpectVectorMatchesHex(test.cipher_text, cipher_text);
-    ExpectVectorMatchesHex(test.authentication_tag, authentication_tag);
+    ExpectVectorMatches(test_cipher_text, cipher_text);
+    ExpectVectorMatches(test_authentication_tag, authentication_tag);
 
     // Test decryption.
     blink::WebArrayBuffer plain_text;
     EXPECT_STATUS_SUCCESS(AesGcmDecrypt(key, test_iv, test_additional_data,
                                         test_tag_size_bits, test_cipher_text,
                                         test_authentication_tag, &plain_text));
-    ExpectArrayBufferMatchesHex(test.plain_text, plain_text);
+    ExpectArrayBufferMatches(test_plain_text, plain_text);
 
     // Decryption should fail if any of the inputs are tampered with.
     EXPECT_STATUS(Status::Error(),