components/webcrypto/test/test_helpers.h

   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 #ifndef COMPONENTS_WEBCRYPTO_TEST_TEST_HELPERS_H_
   6 #define COMPONENTS_WEBCRYPTO_TEST_TEST_HELPERS_H_
   7
   8 #include <ostream>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/memory/scoped_ptr.h"
  13 #include "testing/gtest/include/gtest/gtest.h"
  14 #include "third_party/WebKit/public/platform/WebCryptoAlgorithm.h"
  15 #include "third_party/WebKit/public/platform/WebCryptoKey.h"
  16
  17 #define EXPECT_BYTES_EQ(expected, actual) \
  18   EXPECT_EQ(CryptoData(expected), CryptoData(actual))
  19
  20 #define EXPECT_BYTES_EQ_HEX(expected_hex, actual_bytes) \
  21   EXPECT_BYTES_EQ(HexStringToBytes(expected_hex), actual_bytes)
  22
  23 namespace base {
  24 class DictionaryValue;
  25 class ListValue;
  26 class Value;
  27 }
  28
  29 namespace blink {
  30 class WebCryptoAlgorithm;
  31 }
  32
  33 namespace webcrypto {
  34
  35 // Base class for WebCrypto tests. All WebCrypto tests must derive from this
  36 // to ensure that Blink has been properly initialized. In particular,
  37 // the WebCrypto tests use blink::WebCryptoAlgorithm, which in turn relies on
  38 // PartitionAlloc.
  39 class WebCryptoTestBase : public testing::Test {
  40  protected:
  41   static void SetUpTestCase();
  42 };
  43
  44 class Status;
  45 class CryptoData;
  46
  47 // These functions are used by GTEST to support EXPECT_EQ() for
  48 // webcrypto::Status and webcrypto::CryptoData
  49
  50 void PrintTo(const Status& status, ::std::ostream* os);
  51 bool operator==(const Status& a, const Status& b);
  52 bool operator!=(const Status& a, const Status& b);
  53
  54 void PrintTo(const CryptoData& data, ::std::ostream* os);
  55 bool operator==(const CryptoData& a, const CryptoData& b);
  56 bool operator!=(const CryptoData& a, const CryptoData& b);
  57
  58 // Gives a human-readable description of |status| and any error it represents.
  59 std::string StatusToString(const Status& status);
  60
  61 // TODO(eroman): For Linux builds using system NSS, AES-GCM and RSA-OAEP, and
  62 // RSA key import are a runtime dependency.
  63 bool SupportsAesGcm();
  64 bool SupportsRsaOaep();
  65 bool SupportsRsaPrivateKeyImport();
  66
  67 blink::WebCryptoAlgorithm CreateRsaHashedKeyGenAlgorithm(
  68     blink::WebCryptoAlgorithmId algorithm_id,
  69     const blink::WebCryptoAlgorithmId hash_id,
  70     unsigned int modulus_length,
  71     const std::vector<uint8_t>& public_exponent);
  72
  73 // Returns a slightly modified version of the input vector.
  74 //
  75 //  - For non-empty inputs a single bit is inverted.
  76 //  - For empty inputs, a byte is added.
  77 std::vector<uint8_t> Corrupted(const std::vector<uint8_t>& input);
  78
  79 std::vector<uint8_t> HexStringToBytes(const std::string& hex);
  80
  81 std::vector<uint8_t> MakeJsonVector(const std::string& json_string);
  82 std::vector<uint8_t> MakeJsonVector(const base::DictionaryValue& dict);
  83
  84 // ----------------------------------------------------------------
  85 // Helpers for working with JSON data files for test expectations.
  86 // ----------------------------------------------------------------
  87
  88 // Reads a file in "src/content/test/data/webcrypto" to a base::Value.
  89 // The file must be JSON, however it can also include C++ style comments.
  90 ::testing::AssertionResult ReadJsonTestFile(const char* test_file_name,
  91                                             scoped_ptr<base::Value>* value);
  92 // Same as ReadJsonTestFile(), but returns the value as a List.
  93 ::testing::AssertionResult ReadJsonTestFileToList(
  94     const char* test_file_name,
  95     scoped_ptr<base::ListValue>* list);
  96 // Same as ReadJsonTestFile(), but returns the value as a Dictionary.
  97 ::testing::AssertionResult ReadJsonTestFileToDictionary(
  98     const char* test_file_name,
  99     scoped_ptr<base::DictionaryValue>* dict);
 100
 101 // Reads a string property from the dictionary with path |property_name|
 102 // (which can include periods for nested dictionaries). Interprets the
 103 // string as a hex encoded string and converts it to a bytes list.
 104 //
 105 // Returns empty vector on failure.
 106 std::vector<uint8_t> GetBytesFromHexString(const base::DictionaryValue* dict,
 107                                            const std::string& property_name);
 108
 109 // Reads a string property with path "property_name" and converts it to a
 110 // WebCryptoAlgorith. Returns null algorithm on failure.
 111 blink::WebCryptoAlgorithm GetDigestAlgorithm(const base::DictionaryValue* dict,
 112                                              const char* property_name);
 113
 114 // Returns true if any of the vectors in the input list have identical content.
 115 bool CopiesExist(const std::vector<std::vector<uint8_t>>& bufs);
 116
 117 blink::WebCryptoAlgorithm CreateAesKeyGenAlgorithm(
 118     blink::WebCryptoAlgorithmId aes_alg_id,
 119     unsigned short length);
 120
 121 // The following key pair is comprised of the SPKI (public key) and PKCS#8
 122 // (private key) representations of the key pair provided in Example 1 of the
 123 // NIST test vectors at
 124 // ftp://ftp.rsa.com/pub/rsalabs/tmp/pkcs1v15sign-vectors.txt
 125 extern const unsigned int kModulusLengthBits;
 126 extern const char* const kPublicKeySpkiDerHex;
 127 extern const char* const kPrivateKeyPkcs8DerHex;
 128
 129 // The modulus and exponent (in hex) of kPublicKeySpkiDerHex
 130 extern const char* const kPublicKeyModulusHex;
 131 extern const char* const kPublicKeyExponentHex;
 132
 133 blink::WebCryptoKey ImportSecretKeyFromRaw(
 134     const std::vector<uint8_t>& key_raw,
 135     const blink::WebCryptoAlgorithm& algorithm,
 136     blink::WebCryptoKeyUsageMask usage);
 137
 138 void ImportRsaKeyPair(const std::vector<uint8_t>& spki_der,
 139                       const std::vector<uint8_t>& pkcs8_der,
 140                       const blink::WebCryptoAlgorithm& algorithm,
 141                       bool extractable,
 142                       blink::WebCryptoKeyUsageMask public_key_usages,
 143                       blink::WebCryptoKeyUsageMask private_key_usages,
 144                       blink::WebCryptoKey* public_key,
 145                       blink::WebCryptoKey* private_key);
 146
 147 Status ImportKeyJwkFromDict(const base::DictionaryValue& dict,
 148                             const blink::WebCryptoAlgorithm& algorithm,
 149                             bool extractable,
 150                             blink::WebCryptoKeyUsageMask usages,
 151                             blink::WebCryptoKey* key);
 152
 153 // Parses a vector of JSON into a dictionary.
 154 scoped_ptr<base::DictionaryValue> GetJwkDictionary(
 155     const std::vector<uint8_t>& json);
 156
 157 // Verifies the input dictionary contains the expected values. Exact matches are
 158 // required on the fields examined.
 159 ::testing::AssertionResult VerifyJwk(
 160     const scoped_ptr<base::DictionaryValue>& dict,
 161     const std::string& kty_expected,
 162     const std::string& alg_expected,
 163     blink::WebCryptoKeyUsageMask use_mask_expected);
 164
 165 ::testing::AssertionResult VerifySecretJwk(
 166     const std::vector<uint8_t>& json,
 167     const std::string& alg_expected,
 168     const std::string& k_expected_hex,
 169     blink::WebCryptoKeyUsageMask use_mask_expected);
 170
 171 // Verifies that the JSON in the input vector contains the provided
 172 // expected values. Exact matches are required on the fields examined.
 173 ::testing::AssertionResult VerifyPublicJwk(
 174     const std::vector<uint8_t>& json,
 175     const std::string& alg_expected,
 176     const std::string& n_expected_hex,
 177     const std::string& e_expected_hex,
 178     blink::WebCryptoKeyUsageMask use_mask_expected);
 179
 180 // Helper that tests importing ane exporting of symmetric keys as JWK.
 181 void ImportExportJwkSymmetricKey(
 182     int key_len_bits,
 183     const blink::WebCryptoAlgorithm& import_algorithm,
 184     blink::WebCryptoKeyUsageMask usages,
 185     const std::string& jwk_alg);
 186
 187 // Wrappers around GenerateKey() which expect the result to be either a secret
 188 // key or a public/private keypair. If the result does not match the
 189 // expectation, then it fails with Status::ErrorUnexpected().
 190 Status GenerateSecretKey(const blink::WebCryptoAlgorithm& algorithm,
 191                          bool extractable,
 192                          blink::WebCryptoKeyUsageMask usages,
 193                          blink::WebCryptoKey* key);
 194 Status GenerateKeyPair(const blink::WebCryptoAlgorithm& algorithm,
 195                        bool extractable,
 196                        blink::WebCryptoKeyUsageMask usages,
 197                        blink::WebCryptoKey* public_key,
 198                        blink::WebCryptoKey* private_key);
 199
 200 // Reads a key format string as used in some JSON test files and converts it to
 201 // a WebCryptoKeyFormat.
 202 blink::WebCryptoKeyFormat GetKeyFormatFromJsonTestCase(
 203     const base::DictionaryValue* test);
 204
 205 // Extracts the key data bytes from |test| as used insome JSON test files.
 206 std::vector<uint8_t> GetKeyDataFromJsonTestCase(
 207     const base::DictionaryValue* test,
 208     blink::WebCryptoKeyFormat key_format);
 209
 210 // Reads the "crv" string from a JSON test case and returns it as a
 211 // WebCryptoNamedCurve.
 212 blink::WebCryptoNamedCurve GetCurveNameFromDictionary(
 213     const base::DictionaryValue* dict);
 214
 215 }  // namespace webcrypto
 216
 217 #endif  // COMPONENTS_WEBCRYPTO_TEST_TEST_HELPERS_H_