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android / platform / external / chromium_org / 5c02ac1a9c1b504631c0a3d2b6e737b5d738bae1 / . / content / child / webcrypto / shared_crypto_unittest.cc
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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/child/webcrypto/shared_crypto.h"
#include <algorithm>
#include <string>
#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/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "content/child/webcrypto/crypto_data.h"
#include "content/child/webcrypto/status.h"
#include "content/child/webcrypto/webcrypto_util.h"
#include "content/public/common/content_paths.h"
#include "testing/gtest/include/gtest/gtest.h"
#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/WebKit/public/platform/WebCryptoKeyAlgorithm.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
#if defined(USE_OPENSSL)
#define MAYBE(test_name) DISABLED_##test_name
#else
#define MAYBE(test_name) test_name
#endif
#define EXPECT_BYTES_EQ(expected, actual) \
EXPECT_EQ(CryptoData(expected), CryptoData(actual))
#define EXPECT_BYTES_EQ_HEX(expected_hex, actual_bytes) \
EXPECT_BYTES_EQ(HexStringToBytes(expected_hex), actual_bytes)
namespace content {
namespace webcrypto {
// These functions are used by GTEST to support EXPECT_EQ() for
// webcrypto::Status and webcrypto::CryptoData
void PrintTo(const Status& status, ::std::ostream* os) {
if (status.IsSuccess())
*os << "Success";
else
*os << "Error type: " << status.error_type()
<< " Error details: " << status.error_details();
}
bool operator==(const content::webcrypto::Status& a,
const content::webcrypto::Status& b) {
if (a.IsSuccess() != b.IsSuccess())
return false;
if (a.IsSuccess())
return true;
return a.error_type() == b.error_type() &&
a.error_details() == b.error_details();
}
bool operator!=(const content::webcrypto::Status& a,
const content::webcrypto::Status& b) {
return !(a == b);
}
void PrintTo(const CryptoData& data, ::std::ostream* os) {
*os << "[" << base::HexEncode(data.bytes(), data.byte_length()) << "]";
}
bool operator==(const content::webcrypto::CryptoData& a,
const content::webcrypto::CryptoData& b) {
return a.byte_length() == b.byte_length() &&
memcmp(a.bytes(), b.bytes(), a.byte_length()) == 0;
}
namespace {
// -----------------------------------------------------------------------------
// TODO(eroman): For Linux builds using system NSS, AES-GCM support is a
// runtime dependency. Test it by trying to import a key.
// TODO(padolph): Consider caching the result of the import key test.
bool SupportsAesGcm() {
std::vector<uint8> key_raw(16, 0);
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
Status status = ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(key_raw),
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesGcm),
true,
blink::WebCryptoKeyUsageEncrypt,
&key);
if (status.IsError())
EXPECT_EQ(Status::ErrorUnsupported(), status);
return status.IsSuccess();
}
blink::WebCryptoAlgorithm CreateRsaKeyGenAlgorithm(
blink::WebCryptoAlgorithmId algorithm_id,
unsigned int modulus_length,
const std::vector<uint8>& public_exponent) {
DCHECK_EQ(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5, algorithm_id);
return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
algorithm_id,
new blink::WebCryptoRsaKeyGenParams(
modulus_length,
webcrypto::Uint8VectorStart(public_exponent),
public_exponent.size()));
}
blink::WebCryptoAlgorithm CreateRsaHashedKeyGenAlgorithm(
blink::WebCryptoAlgorithmId algorithm_id,
const blink::WebCryptoAlgorithmId hash_id,
unsigned int modulus_length,
const std::vector<uint8>& public_exponent) {
DCHECK(algorithm_id == blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 ||
algorithm_id == blink::WebCryptoAlgorithmIdRsaOaep);
DCHECK(IsHashAlgorithm(hash_id));
return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
algorithm_id,
new blink::WebCryptoRsaHashedKeyGenParams(
CreateAlgorithm(hash_id),
modulus_length,
webcrypto::Uint8VectorStart(public_exponent),
public_exponent.size()));
}
// Creates an AES-CBC algorithm.
blink::WebCryptoAlgorithm CreateAesCbcAlgorithm(const std::vector<uint8>& iv) {
return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
blink::WebCryptoAlgorithmIdAesCbc,
new blink::WebCryptoAesCbcParams(Uint8VectorStart(iv), iv.size()));
}
// Creates and AES-GCM algorithm.
blink::WebCryptoAlgorithm CreateAesGcmAlgorithm(
const std::vector<uint8>& iv,
const std::vector<uint8>& additional_data,
unsigned int tag_length_bits) {
EXPECT_TRUE(SupportsAesGcm());
return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
blink::WebCryptoAlgorithmIdAesGcm,
new blink::WebCryptoAesGcmParams(Uint8VectorStart(iv),
iv.size(),
true,
Uint8VectorStart(additional_data),
additional_data.size(),
true,
tag_length_bits));
}
// Creates an HMAC algorithm whose parameters struct is compatible with key
// generation. It is an error to call this with a hash_id that is not a SHA*.
// The key_length_bits parameter is optional, with zero meaning unspecified.
blink::WebCryptoAlgorithm CreateHmacKeyGenAlgorithm(
blink::WebCryptoAlgorithmId hash_id,
unsigned int key_length_bits) {
DCHECK(IsHashAlgorithm(hash_id));
// key_length_bytes == 0 means unspecified
return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
blink::WebCryptoAlgorithmIdHmac,
new blink::WebCryptoHmacKeyGenParams(
CreateAlgorithm(hash_id), (key_length_bits != 0), key_length_bits));
}
// Returns a slightly modified version of the input vector.
//
// - For non-empty inputs a single bit is inverted.
// - For empty inputs, a byte is added.
std::vector<uint8> Corrupted(const std::vector<uint8>& input) {
std::vector<uint8> corrupted_data(input);
if (corrupted_data.empty())
corrupted_data.push_back(0);
corrupted_data[corrupted_data.size() / 2] ^= 0x01;
return corrupted_data;
}
std::vector<uint8> HexStringToBytes(const std::string& hex) {
std::vector<uint8> bytes;
base::HexStringToBytes(hex, &bytes);
return bytes;
}
std::vector<uint8> MakeJsonVector(const std::string& json_string) {
return std::vector<uint8>(json_string.begin(), json_string.end());
}
std::vector<uint8> MakeJsonVector(const base::DictionaryValue& dict) {
std::string json;
base::JSONWriter::Write(&dict, &json);
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-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 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) {
dict->Clear();
dict->SetString("kty", "oct");
dict->SetString("alg", "A128CBC");
dict->SetString("use", "enc");
dict->SetBoolean("ext", false);
dict->SetString("k", "GADWrMRHwQfoNaXU5fZvTg==");
}
// Helper for ImportJwkRsaFailures. Restores the JWK JSON
// dictionary to a good state
void RestoreJwkRsaDictionary(base::DictionaryValue* dict) {
dict->Clear();
dict->SetString("kty", "RSA");
dict->SetString("alg", "RSA1_5");
dict->SetString("use", "enc");
dict->SetBoolean("ext", false);
dict->SetString(
"n",
"qLOyhK-OtQs4cDSoYPFGxJGfMYdjzWxVmMiuSBGh4KvEx-CwgtaTpef87Wdc9GaFEncsDLxk"
"p0LGxjD1M8jMcvYq6DPEC_JYQumEu3i9v5fAEH1VvbZi9cTg-rmEXLUUjvc5LdOq_5OuHmtm"
"e7PUJHYW1PW6ENTP0ibeiNOfFvs");
dict->SetString("e", "AQAB");
}
// Returns true if any of the vectors in the input list have identical content.
// Dumb O(n^2) implementation but should be fast enough for the input sizes that
// are used.
bool CopiesExist(const std::vector<std::vector<uint8> >& bufs) {
for (size_t i = 0; i < bufs.size(); ++i) {
for (size_t j = i + 1; j < bufs.size(); ++j) {
if (CryptoData(bufs[i]) == CryptoData(bufs[j]))
return true;
}
}
return false;
}
blink::WebCryptoAlgorithm CreateAesKeyGenAlgorithm(
blink::WebCryptoAlgorithmId aes_alg_id,
unsigned short length) {
return blink::WebCryptoAlgorithm::adoptParamsAndCreate(
aes_alg_id, new blink::WebCryptoAesKeyGenParams(length));
}
blink::WebCryptoAlgorithm CreateAesCbcKeyGenAlgorithm(
unsigned short key_length_bits) {
return CreateAesKeyGenAlgorithm(blink::WebCryptoAlgorithmIdAesCbc,
key_length_bits);
}
blink::WebCryptoAlgorithm CreateAesGcmKeyGenAlgorithm(
unsigned short key_length_bits) {
EXPECT_TRUE(SupportsAesGcm());
return CreateAesKeyGenAlgorithm(blink::WebCryptoAlgorithmIdAesGcm,
key_length_bits);
}
blink::WebCryptoAlgorithm CreateAesKwKeyGenAlgorithm(
unsigned short key_length_bits) {
return CreateAesKeyGenAlgorithm(blink::WebCryptoAlgorithmIdAesKw,
key_length_bits);
}
// The following key pair is comprised of the SPKI (public key) and PKCS#8
// (private key) representations of the key pair provided in Example 1 of the
// NIST test vectors at
// ftp://ftp.rsa.com/pub/rsalabs/tmp/pkcs1v15sign-vectors.txt
const unsigned int kModulusLengthBits = 1024;
const char* const kPublicKeySpkiDerHex =
"30819f300d06092a864886f70d010101050003818d0030818902818100a5"
"6e4a0e701017589a5187dc7ea841d156f2ec0e36ad52a44dfeb1e61f7ad9"
"91d8c51056ffedb162b4c0f283a12a88a394dff526ab7291cbb307ceabfc"
"e0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921cb23c270a70e2598e"
"6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef22e1e1f20d0ce8cf"
"fb2249bd9a21370203010001";
const char* const kPrivateKeyPkcs8DerHex =
"30820275020100300d06092a864886f70d01010105000482025f3082025b"
"02010002818100a56e4a0e701017589a5187dc7ea841d156f2ec0e36ad52"
"a44dfeb1e61f7ad991d8c51056ffedb162b4c0f283a12a88a394dff526ab"
"7291cbb307ceabfce0b1dfd5cd9508096d5b2b8b6df5d671ef6377c0921c"
"b23c270a70e2598e6ff89d19f105acc2d3f0cb35f29280e1386b6f64c4ef"
"22e1e1f20d0ce8cffb2249bd9a2137020301000102818033a5042a90b27d"
"4f5451ca9bbbd0b44771a101af884340aef9885f2a4bbe92e894a724ac3c"
"568c8f97853ad07c0266c8c6a3ca0929f1e8f11231884429fc4d9ae55fee"
"896a10ce707c3ed7e734e44727a39574501a532683109c2abacaba283c31"
"b4bd2f53c3ee37e352cee34f9e503bd80c0622ad79c6dcee883547c6a3b3"
"25024100e7e8942720a877517273a356053ea2a1bc0c94aa72d55c6e8629"
"6b2dfc967948c0a72cbccca7eacb35706e09a1df55a1535bd9b3cc34160b"
"3b6dcd3eda8e6443024100b69dca1cf7d4d7ec81e75b90fcca874abcde12"
"3fd2700180aa90479b6e48de8d67ed24f9f19d85ba275874f542cd20dc72"
"3e6963364a1f9425452b269a6799fd024028fa13938655be1f8a159cbaca"
"5a72ea190c30089e19cd274a556f36c4f6e19f554b34c077790427bbdd8d"
"d3ede2448328f385d81b30e8e43b2fffa02786197902401a8b38f398fa71"
"2049898d7fb79ee0a77668791299cdfa09efc0e507acb21ed74301ef5bfd"
"48be455eaeb6e1678255827580a8e4e8e14151d1510a82a3f2e729024027"
"156aba4126d24a81f3a528cbfb27f56886f840a9f6e86e17a44b94fe9319"
"584b8e22fdde1e5a2e3bd8aa5ba8d8584194eb2190acf832b847f13a3d24"
"a79f4d";
class SharedCryptoTest : public testing::Test {
protected:
virtual void SetUp() OVERRIDE { Init(); }
};
blink::WebCryptoKey ImportSecretKeyFromRaw(
const std::vector<uint8>& key_raw,
const blink::WebCryptoAlgorithm& algorithm,
blink::WebCryptoKeyUsageMask usage) {
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
bool extractable = true;
EXPECT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(key_raw),
algorithm,
extractable,
usage,
&key));
EXPECT_FALSE(key.isNull());
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(algorithm.id(), key.algorithm().id());
EXPECT_EQ(extractable, key.extractable());
EXPECT_EQ(usage, key.usages());
return key;
}
void ImportRsaKeyPair(const std::vector<uint8>& spki_der,
const std::vector<uint8>& pkcs8_der,
const blink::WebCryptoAlgorithm& algorithm,
bool extractable,
blink::WebCryptoKeyUsageMask usage_mask,
blink::WebCryptoKey* public_key,
blink::WebCryptoKey* private_key) {
EXPECT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(spki_der),
algorithm,
true,
usage_mask,
public_key));
EXPECT_FALSE(public_key->isNull());
EXPECT_TRUE(public_key->handle());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key->type());
EXPECT_EQ(algorithm.id(), public_key->algorithm().id());
EXPECT_EQ(extractable, extractable);
EXPECT_EQ(usage_mask, public_key->usages());
EXPECT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(pkcs8_der),
algorithm,
extractable,
usage_mask,
private_key));
EXPECT_FALSE(private_key->isNull());
EXPECT_TRUE(private_key->handle());
EXPECT_EQ(blink::WebCryptoKeyTypePrivate, private_key->type());
EXPECT_EQ(algorithm.id(), private_key->algorithm().id());
EXPECT_EQ(extractable, extractable);
EXPECT_EQ(usage_mask, private_key->usages());
}
Status AesGcmEncrypt(const blink::WebCryptoKey& key,
const std::vector<uint8>& iv,
const std::vector<uint8>& additional_data,
unsigned int tag_length_bits,
const std::vector<uint8>& plain_text,
std::vector<uint8>* cipher_text,
std::vector<uint8>* authentication_tag) {
EXPECT_TRUE(SupportsAesGcm());
blink::WebCryptoAlgorithm algorithm =
CreateAesGcmAlgorithm(iv, additional_data, tag_length_bits);
std::vector<uint8> output;
Status status = Encrypt(algorithm, key, CryptoData(plain_text), &output);
if (status.IsError())
return status;
if ((tag_length_bits % 8) != 0) {
EXPECT_TRUE(false) << "Encrypt should have failed.";
return Status::OperationError();
}
size_t tag_length_bytes = tag_length_bits / 8;
if (tag_length_bytes > output.size()) {
EXPECT_TRUE(false) << "tag length is larger than output";
return Status::OperationError();
}
// The encryption result is cipher text with authentication tag appended.
cipher_text->assign(output.begin(),
output.begin() + (output.size() - tag_length_bytes));
authentication_tag->assign(output.begin() + cipher_text->size(),
output.end());
return Status::Success();
}
Status AesGcmDecrypt(const blink::WebCryptoKey& key,
const std::vector<uint8>& iv,
const std::vector<uint8>& additional_data,
unsigned int tag_length_bits,
const std::vector<uint8>& cipher_text,
const std::vector<uint8>& authentication_tag,
std::vector<uint8>* plain_text) {
EXPECT_TRUE(SupportsAesGcm());
blink::WebCryptoAlgorithm algorithm =
CreateAesGcmAlgorithm(iv, additional_data, tag_length_bits);
// Join cipher text and authentication tag.
std::vector<uint8> cipher_text_with_tag;
cipher_text_with_tag.reserve(cipher_text.size() + authentication_tag.size());
cipher_text_with_tag.insert(
cipher_text_with_tag.end(), cipher_text.begin(), cipher_text.end());
cipher_text_with_tag.insert(cipher_text_with_tag.end(),
authentication_tag.begin(),
authentication_tag.end());
return Decrypt(algorithm, key, CryptoData(cipher_text_with_tag), plain_text);
}
Status ImportKeyJwk(const CryptoData& key_data,
const blink::WebCryptoAlgorithm& algorithm,
bool extractable,
blink::WebCryptoKeyUsageMask usage_mask,
blink::WebCryptoKey* key) {
return ImportKey(blink::WebCryptoKeyFormatJwk,
key_data,
algorithm,
extractable,
usage_mask,
key);
}
Status ImportKeyJwkFromDict(const base::DictionaryValue& dict,
const blink::WebCryptoAlgorithm& algorithm,
bool extractable,
blink::WebCryptoKeyUsageMask usage_mask,
blink::WebCryptoKey* key) {
return ImportKeyJwk(CryptoData(MakeJsonVector(dict)),
algorithm,
extractable,
usage_mask,
key);
}
// Parses a vector of JSON into a dictionary.
scoped_ptr<base::DictionaryValue> GetJwkDictionary(
const std::vector<uint8>& json) {
base::StringPiece json_string(
reinterpret_cast<const char*>(Uint8VectorStart(json)), json.size());
base::Value* value = base::JSONReader::Read(json_string);
EXPECT_TRUE(value);
base::DictionaryValue* dict_value = NULL;
value->GetAsDictionary(&dict_value);
return scoped_ptr<base::DictionaryValue>(dict_value);
}
// Verifies the input dictionary contains the expected values. Exact matches are
// required on the fields examined.
::testing::AssertionResult VerifyJwk(
const scoped_ptr<base::DictionaryValue>& dict,
const std::string& kty_expected,
const std::string& alg_expected,
blink::WebCryptoKeyUsageMask use_mask_expected) {
// ---- kty
std::string value_string;
if (!dict->GetString("kty", &value_string))
return ::testing::AssertionFailure() << "Missing 'kty'";
if (value_string != kty_expected)
return ::testing::AssertionFailure() << "Expected 'kty' to be "
<< kty_expected << "but found "
<< value_string;
// ---- alg
if (!dict->GetString("alg", &value_string))
return ::testing::AssertionFailure() << "Missing 'alg'";
if (value_string != alg_expected)
return ::testing::AssertionFailure() << "Expected 'alg' to be "
<< alg_expected << " but found "
<< value_string;
// ---- ext
// always expect ext == true in this case
bool ext_value;
if (!dict->GetBoolean("ext", &ext_value))
return ::testing::AssertionFailure() << "Missing 'ext'";
if (!ext_value)
return ::testing::AssertionFailure()
<< "Expected 'ext' to be true but found false";
// ---- key_ops
base::ListValue* key_ops;
if (!dict->GetList("key_ops", &key_ops))
return ::testing::AssertionFailure() << "Missing 'key_ops'";
blink::WebCryptoKeyUsageMask key_ops_mask = 0;
Status status = GetWebCryptoUsagesFromJwkKeyOps(key_ops, &key_ops_mask);
if (status.IsError())
return ::testing::AssertionFailure() << "Failure extracting 'key_ops'";
if (key_ops_mask != use_mask_expected)
return ::testing::AssertionFailure()
<< "Expected 'key_ops' mask to be " << use_mask_expected
<< " but found " << key_ops_mask << " (" << value_string << ")";
return ::testing::AssertionSuccess();
}
// Verifies that the JSON in the input vector contains the provided
// expected values. Exact matches are required on the fields examined.
::testing::AssertionResult VerifySecretJwk(
const std::vector<uint8>& json,
const std::string& alg_expected,
const std::string& k_expected_hex,
blink::WebCryptoKeyUsageMask use_mask_expected) {
scoped_ptr<base::DictionaryValue> dict = GetJwkDictionary(json);
if (!dict.get() || dict->empty())
return ::testing::AssertionFailure() << "JSON parsing failed";
// ---- k
std::string value_string;
if (!dict->GetString("k", &value_string))
return ::testing::AssertionFailure() << "Missing 'k'";
std::string k_value;
if (!webcrypto::Base64DecodeUrlSafe(value_string, &k_value))
return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(k) failed";
if (!LowerCaseEqualsASCII(base::HexEncode(k_value.data(), k_value.size()),
k_expected_hex.c_str())) {
return ::testing::AssertionFailure() << "Expected 'k' to be "
<< k_expected_hex
<< " but found something different";
}
return VerifyJwk(dict, "oct", alg_expected, use_mask_expected);
}
// Verifies that the JSON in the input vector contains the provided
// expected values. Exact matches are required on the fields examined.
::testing::AssertionResult VerifyPublicJwk(
const std::vector<uint8>& json,
const std::string& alg_expected,
const std::string& n_expected_hex,
const std::string& e_expected_hex,
blink::WebCryptoKeyUsageMask use_mask_expected) {
scoped_ptr<base::DictionaryValue> dict = GetJwkDictionary(json);
if (!dict.get() || dict->empty())
return ::testing::AssertionFailure() << "JSON parsing failed";
// ---- n
std::string value_string;
if (!dict->GetString("n", &value_string))
return ::testing::AssertionFailure() << "Missing 'n'";
std::string n_value;
if (!webcrypto::Base64DecodeUrlSafe(value_string, &n_value))
return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(n) failed";
if (base::HexEncode(n_value.data(), n_value.size()) != n_expected_hex) {
return ::testing::AssertionFailure() << "'n' does not match the expected "
"value";
}
// TODO(padolph): LowerCaseEqualsASCII() does not work for above!
// ---- e
if (!dict->GetString("e", &value_string))
return ::testing::AssertionFailure() << "Missing 'e'";
std::string e_value;
if (!webcrypto::Base64DecodeUrlSafe(value_string, &e_value))
return ::testing::AssertionFailure() << "Base64DecodeUrlSafe(e) failed";
if (!LowerCaseEqualsASCII(base::HexEncode(e_value.data(), e_value.size()),
e_expected_hex.c_str())) {
return ::testing::AssertionFailure() << "Expected 'e' to be "
<< e_expected_hex
<< " but found something different";
}
return VerifyJwk(dict, "RSA", alg_expected, use_mask_expected);
}
} // namespace
TEST_F(SharedCryptoTest, CheckAesGcm) {
if (!SupportsAesGcm()) {
LOG(WARNING) << "AES GCM not supported on this platform, so some tests "
"will be skipped. Consider upgrading local NSS libraries";
return;
}
}
// Tests several Status objects against their expected hard coded values, as
// well as ensuring that comparison of Status objects works.
// Comparison should take into account both the error details, as well as the
// error type.
TEST_F(SharedCryptoTest, Status) {
// Even though the error message is the same, these should not be considered
// the same by the tests because the error type is different.
EXPECT_NE(Status::DataError(), Status::OperationError());
EXPECT_NE(Status::Success(), Status::OperationError());
EXPECT_EQ(Status::Success(), Status::Success());
EXPECT_EQ(Status::ErrorJwkPropertyWrongType("kty", "string"),
Status::ErrorJwkPropertyWrongType("kty", "string"));
Status status = Status::Success();
EXPECT_FALSE(status.IsError());
EXPECT_EQ("", status.error_details());
status = Status::OperationError();
EXPECT_TRUE(status.IsError());
EXPECT_EQ("", status.error_details());
EXPECT_EQ(blink::WebCryptoErrorTypeOperation, status.error_type());
status = Status::DataError();
EXPECT_TRUE(status.IsError());
EXPECT_EQ("", status.error_details());
EXPECT_EQ(blink::WebCryptoErrorTypeData, status.error_type());
status = Status::ErrorUnsupported();
EXPECT_TRUE(status.IsError());
EXPECT_EQ("The requested operation is unsupported", status.error_details());
EXPECT_EQ(blink::WebCryptoErrorTypeNotSupported, status.error_type());
status = Status::ErrorJwkPropertyMissing("kty");
EXPECT_TRUE(status.IsError());
EXPECT_EQ("The required JWK property \"kty\" was missing",
status.error_details());
EXPECT_EQ(blink::WebCryptoErrorTypeData, status.error_type());
status = Status::ErrorJwkPropertyWrongType("kty", "string");
EXPECT_TRUE(status.IsError());
EXPECT_EQ("The JWK property \"kty\" must be a string",
status.error_details());
EXPECT_EQ(blink::WebCryptoErrorTypeData, status.error_type());
status = Status::ErrorJwkBase64Decode("n");
EXPECT_TRUE(status.IsError());
EXPECT_EQ("The JWK property \"n\" could not be base64 decoded",
status.error_details());
EXPECT_EQ(blink::WebCryptoErrorTypeData, status.error_type());
}
TEST_F(SharedCryptoTest, DigestSampleSets) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("digest.json", &tests));
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::WebCryptoAlgorithm test_algorithm =
GetDigestAlgorithm(test, "algorithm");
std::vector<uint8> test_input = GetBytesFromHexString(test, "input");
std::vector<uint8> test_output = GetBytesFromHexString(test, "output");
std::vector<uint8> output;
ASSERT_EQ(Status::Success(),
Digest(test_algorithm, CryptoData(test_input), &output));
EXPECT_BYTES_EQ(test_output, output);
}
}
TEST_F(SharedCryptoTest, DigestSampleSetsInChunks) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("digest.json", &tests));
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::WebCryptoAlgorithm test_algorithm =
GetDigestAlgorithm(test, "algorithm");
std::vector<uint8> test_input = GetBytesFromHexString(test, "input");
std::vector<uint8> test_output = GetBytesFromHexString(test, "output");
// Test the chunk version of the digest functions. Test with 129 byte chunks
// because the SHA-512 chunk size is 128 bytes.
unsigned char* output;
unsigned int output_length;
static const size_t kChunkSizeBytes = 129;
size_t length = test_input.size();
scoped_ptr<blink::WebCryptoDigestor> digestor(
CreateDigestor(test_algorithm.id()));
std::vector<uint8>::iterator begin = test_input.begin();
size_t chunk_index = 0;
while (begin != test_input.end()) {
size_t chunk_length = std::min(kChunkSizeBytes, length - chunk_index);
std::vector<uint8> chunk(begin, begin + chunk_length);
ASSERT_TRUE(chunk.size() > 0);
EXPECT_TRUE(digestor->consume(&chunk.front(), chunk.size()));
chunk_index = chunk_index + chunk_length;
begin = begin + chunk_length;
}
EXPECT_TRUE(digestor->finish(output, output_length));
EXPECT_BYTES_EQ(test_output, CryptoData(output, output_length));
}
}
TEST_F(SharedCryptoTest, HMACSampleSets) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("hmac.json", &tests));
// TODO(padolph): Missing known answer tests for HMAC SHA384, and SHA512.
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::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 =
CreateAlgorithm(blink::WebCryptoAlgorithmIdHmac);
blink::WebCryptoAlgorithm importAlgorithm =
CreateHmacImportAlgorithm(test_hash.id());
blink::WebCryptoKey key = ImportSecretKeyFromRaw(
test_key,
importAlgorithm,
blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify);
EXPECT_EQ(test_hash.id(), key.algorithm().hmacParams()->hash().id());
EXPECT_EQ(test_key.size() * 8, key.algorithm().hmacParams()->lengthBits());
// Verify exported raw key is identical to the imported data
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &raw_key));
EXPECT_BYTES_EQ(test_key, raw_key);
std::vector<uint8> output;
ASSERT_EQ(Status::Success(),
Sign(algorithm, key, CryptoData(test_message), &output));
EXPECT_BYTES_EQ(test_mac, output);
bool signature_match = false;
EXPECT_EQ(Status::Success(),
VerifySignature(algorithm,
key,
CryptoData(output),
CryptoData(test_message),
&signature_match));
EXPECT_TRUE(signature_match);
// Ensure truncated signature does not verify by passing one less byte.
EXPECT_EQ(
Status::Success(),
VerifySignature(algorithm,
key,
CryptoData(Uint8VectorStart(output), output.size() - 1),
CryptoData(test_message),
&signature_match));
EXPECT_FALSE(signature_match);
// Ensure truncated signature does not verify by passing no bytes.
EXPECT_EQ(Status::Success(),
VerifySignature(algorithm,
key,
CryptoData(),
CryptoData(test_message),
&signature_match));
EXPECT_FALSE(signature_match);
// Ensure extra long signature does not cause issues and fails.
const unsigned char kLongSignature[1024] = {0};
EXPECT_EQ(
Status::Success(),
VerifySignature(algorithm,
key,
CryptoData(kLongSignature, sizeof(kLongSignature)),
CryptoData(test_message),
&signature_match));
EXPECT_FALSE(signature_match);
}
}
TEST_F(SharedCryptoTest, AesCbcFailures) {
const std::string key_hex = "2b7e151628aed2a6abf7158809cf4f3c";
blink::WebCryptoKey key = ImportSecretKeyFromRaw(
HexStringToBytes(key_hex),
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt);
// Verify exported raw key is identical to the imported data
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &raw_key));
EXPECT_BYTES_EQ_HEX(key_hex, raw_key);
std::vector<uint8> output;
// Use an invalid |iv| (fewer than 16 bytes)
{
std::vector<uint8> input(32);
std::vector<uint8> iv;
EXPECT_EQ(Status::ErrorIncorrectSizeAesCbcIv(),
Encrypt(webcrypto::CreateAesCbcAlgorithm(iv),
key,
CryptoData(input),
&output));
EXPECT_EQ(Status::ErrorIncorrectSizeAesCbcIv(),
Decrypt(webcrypto::CreateAesCbcAlgorithm(iv),
key,
CryptoData(input),
&output));
}
// Use an invalid |iv| (more than 16 bytes)
{
std::vector<uint8> input(32);
std::vector<uint8> iv(17);
EXPECT_EQ(Status::ErrorIncorrectSizeAesCbcIv(),
Encrypt(webcrypto::CreateAesCbcAlgorithm(iv),
key,
CryptoData(input),
&output));
EXPECT_EQ(Status::ErrorIncorrectSizeAesCbcIv(),
Decrypt(webcrypto::CreateAesCbcAlgorithm(iv),
key,
CryptoData(input),
&output));
}
// Give an input that is too large (would cause integer overflow when
// narrowing to an int).
{
std::vector<uint8> iv(16);
// Pretend the input is large. Don't pass data pointer as NULL in case that
// is special cased; the implementation shouldn't actually dereference the
// data.
CryptoData input(&iv[0], INT_MAX - 3);
EXPECT_EQ(Status::ErrorDataTooLarge(),
Encrypt(CreateAesCbcAlgorithm(iv), key, input, &output));
EXPECT_EQ(Status::ErrorDataTooLarge(),
Decrypt(CreateAesCbcAlgorithm(iv), key, input, &output));
}
// Fail importing the key (too few bytes specified)
{
std::vector<uint8> key_raw(1);
std::vector<uint8> iv(16);
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
EXPECT_EQ(Status::ErrorImportAesKeyLength(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(key_raw),
CreateAesCbcAlgorithm(iv),
true,
blink::WebCryptoKeyUsageEncrypt,
&key));
}
// Fail exporting the key in SPKI and PKCS#8 formats (not allowed for secret
// keys).
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
ExportKey(blink::WebCryptoKeyFormatSpki, key, &output));
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
ExportKey(blink::WebCryptoKeyFormatPkcs8, key, &output));
}
TEST_F(SharedCryptoTest, MAYBE(AesCbcSampleSets)) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("aes_cbc.json", &tests));
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,
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt);
EXPECT_EQ(test_key.size() * 8, key.algorithm().aesParams()->lengthBits());
// Verify exported raw key is identical to the imported data
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &raw_key));
EXPECT_BYTES_EQ(test_key, raw_key);
std::vector<uint8> output;
// Test encryption.
EXPECT_EQ(Status::Success(),
Encrypt(webcrypto::CreateAesCbcAlgorithm(test_iv),
key,
CryptoData(test_plain_text),
&output));
EXPECT_BYTES_EQ(test_cipher_text, output);
// Test decryption.
EXPECT_EQ(Status::Success(),
Decrypt(webcrypto::CreateAesCbcAlgorithm(test_iv),
key,
CryptoData(test_cipher_text),
&output));
EXPECT_BYTES_EQ(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 (test_cipher_text.size() >= kAesCbcBlockSize) {
EXPECT_EQ(Status::OperationError(),
Decrypt(CreateAesCbcAlgorithm(test_iv),
key,
CryptoData(&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 (test_cipher_text.size() > 3) {
EXPECT_EQ(
Status::OperationError(),
Decrypt(CreateAesCbcAlgorithm(test_iv),
key,
CryptoData(&test_cipher_text[0], test_cipher_text.size() - 3),
&output));
}
}
}
TEST_F(SharedCryptoTest, MAYBE(GenerateKeyAes)) {
// Check key generation for each of AES-CBC, AES-GCM, and AES-KW, and for each
// allowed key length.
std::vector<blink::WebCryptoAlgorithm> algorithm;
const unsigned short kKeyLength[] = {128, 192, 256};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kKeyLength); ++i) {
algorithm.push_back(CreateAesCbcKeyGenAlgorithm(kKeyLength[i]));
algorithm.push_back(CreateAesKwKeyGenAlgorithm(kKeyLength[i]));
if (SupportsAesGcm())
algorithm.push_back(CreateAesGcmKeyGenAlgorithm(kKeyLength[i]));
}
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
std::vector<std::vector<uint8> > keys;
std::vector<uint8> key_bytes;
for (size_t i = 0; i < algorithm.size(); ++i) {
SCOPED_TRACE(i);
// Generate a small sample of keys.
keys.clear();
for (int j = 0; j < 16; ++j) {
ASSERT_EQ(Status::Success(),
GenerateSecretKey(algorithm[i], true, 0, &key));
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &key_bytes));
EXPECT_EQ(key_bytes.size() * 8,
key.algorithm().aesParams()->lengthBits());
keys.push_back(key_bytes);
}
// Ensure all entries in the key sample set are unique. This is a simplistic
// estimate of whether the generated keys appear random.
EXPECT_FALSE(CopiesExist(keys));
}
}
TEST_F(SharedCryptoTest, MAYBE(GenerateKeyAesBadLength)) {
const unsigned short kKeyLen[] = {0, 127, 257};
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kKeyLen); ++i) {
SCOPED_TRACE(i);
EXPECT_EQ(Status::ErrorGenerateKeyLength(),
GenerateSecretKey(
CreateAesCbcKeyGenAlgorithm(kKeyLen[i]), true, 0, &key));
EXPECT_EQ(Status::ErrorGenerateKeyLength(),
GenerateSecretKey(
CreateAesKwKeyGenAlgorithm(kKeyLen[i]), true, 0, &key));
if (SupportsAesGcm()) {
EXPECT_EQ(Status::ErrorGenerateKeyLength(),
GenerateSecretKey(
CreateAesGcmKeyGenAlgorithm(kKeyLen[i]), true, 0, &key));
}
}
}
TEST_F(SharedCryptoTest, MAYBE(GenerateKeyHmac)) {
// Generate a small sample of HMAC keys.
std::vector<std::vector<uint8> > keys;
for (int i = 0; i < 16; ++i) {
std::vector<uint8> key_bytes;
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
blink::WebCryptoAlgorithm algorithm =
CreateHmacKeyGenAlgorithm(blink::WebCryptoAlgorithmIdSha1, 512);
ASSERT_EQ(Status::Success(), GenerateSecretKey(algorithm, true, 0, &key));
EXPECT_FALSE(key.isNull());
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(blink::WebCryptoAlgorithmIdHmac, key.algorithm().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha1,
key.algorithm().hmacParams()->hash().id());
EXPECT_EQ(512u, key.algorithm().hmacParams()->lengthBits());
std::vector<uint8> raw_key;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &raw_key));
EXPECT_EQ(64U, raw_key.size());
keys.push_back(raw_key);
}
// Ensure all entries in the key sample set are unique. This is a simplistic
// estimate of whether the generated keys appear random.
EXPECT_FALSE(CopiesExist(keys));
}
// If the key length is not provided, then the block size is used.
TEST_F(SharedCryptoTest, MAYBE(GenerateKeyHmacNoLength)) {
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
blink::WebCryptoAlgorithm algorithm =
CreateHmacKeyGenAlgorithm(blink::WebCryptoAlgorithmIdSha1, 0);
ASSERT_EQ(Status::Success(), GenerateSecretKey(algorithm, true, 0, &key));
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(blink::WebCryptoAlgorithmIdHmac, key.algorithm().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha1,
key.algorithm().hmacParams()->hash().id());
EXPECT_EQ(512u, key.algorithm().hmacParams()->lengthBits());
std::vector<uint8> raw_key;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &raw_key));
EXPECT_EQ(64U, raw_key.size());
// The block size for HMAC SHA-512 is larger.
algorithm = CreateHmacKeyGenAlgorithm(blink::WebCryptoAlgorithmIdSha512, 0);
ASSERT_EQ(Status::Success(), GenerateSecretKey(algorithm, true, 0, &key));
EXPECT_EQ(blink::WebCryptoAlgorithmIdHmac, key.algorithm().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha512,
key.algorithm().hmacParams()->hash().id());
EXPECT_EQ(1024u, key.algorithm().hmacParams()->lengthBits());
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &raw_key));
EXPECT_EQ(128U, raw_key.size());
}
TEST_F(SharedCryptoTest, ImportJwkKeyUsage) {
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
base::DictionaryValue dict;
dict.SetString("kty", "oct");
dict.SetBoolean("ext", false);
dict.SetString("k", "GADWrMRHwQfoNaXU5fZvTg==");
const blink::WebCryptoAlgorithm aes_cbc_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
const blink::WebCryptoAlgorithm hmac_algorithm =
webcrypto::CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256);
const blink::WebCryptoAlgorithm aes_kw_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw);
// Test null usage.
base::ListValue* key_ops = new base::ListValue;
// Note: the following call makes dict assume ownership of key_ops.
dict.Set("key_ops", key_ops);
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict, aes_cbc_algorithm, false, 0, &key));
EXPECT_EQ(0, key.usages());
// Test each key_ops value translates to the correct Web Crypto value.
struct TestCase {
const char* jwk_key_op;
const char* jwk_alg;
const blink::WebCryptoAlgorithm algorithm;
const blink::WebCryptoKeyUsage usage;
};
// TODO(padolph): Add 'deriveBits' key_ops value once it is supported.
const TestCase test_case[] = {
{"encrypt", "A128CBC", aes_cbc_algorithm,
blink::WebCryptoKeyUsageEncrypt},
{"decrypt", "A128CBC", aes_cbc_algorithm,
blink::WebCryptoKeyUsageDecrypt},
{"sign", "HS256", hmac_algorithm, blink::WebCryptoKeyUsageSign},
{"verify", "HS256", hmac_algorithm, blink::WebCryptoKeyUsageVerify},
{"wrapKey", "A128KW", aes_kw_algorithm, blink::WebCryptoKeyUsageWrapKey},
{"unwrapKey", "A128KW", aes_kw_algorithm,
blink::WebCryptoKeyUsageUnwrapKey},
{"deriveKey", "HS256", hmac_algorithm,
blink::WebCryptoKeyUsageDeriveKey}};
for (size_t test_index = 0; test_index < ARRAYSIZE_UNSAFE(test_case);
++test_index) {
SCOPED_TRACE(test_index);
dict.SetString("alg", test_case[test_index].jwk_alg);
key_ops->Clear();
key_ops->AppendString(test_case[test_index].jwk_key_op);
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict,
test_case[test_index].algorithm,
false,
test_case[test_index].usage,
&key));
EXPECT_EQ(test_case[test_index].usage, key.usages());
}
// Test discrete multiple usages.
dict.SetString("alg", "A128CBC");
key_ops->Clear();
key_ops->AppendString("encrypt");
key_ops->AppendString("decrypt");
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict,
aes_cbc_algorithm,
false,
blink::WebCryptoKeyUsageDecrypt |
blink::WebCryptoKeyUsageEncrypt,
&key));
EXPECT_EQ(blink::WebCryptoKeyUsageDecrypt | blink::WebCryptoKeyUsageEncrypt,
key.usages());
// Test constrained key usage (input usage is a subset of JWK usage).
key_ops->Clear();
key_ops->AppendString("encrypt");
key_ops->AppendString("decrypt");
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict,
aes_cbc_algorithm,
false,
blink::WebCryptoKeyUsageDecrypt,
&key));
EXPECT_EQ(blink::WebCryptoKeyUsageDecrypt, key.usages());
// Test failure if input usage is NOT a strict subset of the JWK usage.
key_ops->Clear();
key_ops->AppendString("encrypt");
EXPECT_EQ(Status::ErrorJwkKeyopsInconsistent(),
ImportKeyJwkFromDict(dict,
aes_cbc_algorithm,
false,
blink::WebCryptoKeyUsageEncrypt |
blink::WebCryptoKeyUsageDecrypt,
&key));
// Test 'use' inconsistent with 'key_ops'.
dict.SetString("alg", "HS256");
dict.SetString("use", "sig");
key_ops->AppendString("sign");
key_ops->AppendString("verify");
key_ops->AppendString("encrypt");
EXPECT_EQ(Status::ErrorJwkUseAndKeyopsInconsistent(),
ImportKeyJwkFromDict(
dict,
hmac_algorithm,
false,
blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify,
&key));
// Test JWK composite 'sig' use
dict.Remove("key_ops", NULL);
dict.SetString("use", "sig");
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(
dict,
hmac_algorithm,
false,
blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify,
&key));
EXPECT_EQ(blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify,
key.usages());
// Test JWK composite use 'enc' usage
dict.SetString("alg", "A128CBC");
dict.SetString("use", "enc");
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict,
aes_cbc_algorithm,
false,
blink::WebCryptoKeyUsageDecrypt |
blink::WebCryptoKeyUsageEncrypt |
blink::WebCryptoKeyUsageWrapKey |
blink::WebCryptoKeyUsageUnwrapKey |
blink::WebCryptoKeyUsageDeriveKey,
&key));
EXPECT_EQ(blink::WebCryptoKeyUsageDecrypt | blink::WebCryptoKeyUsageEncrypt |
blink::WebCryptoKeyUsageWrapKey |
blink::WebCryptoKeyUsageUnwrapKey |
blink::WebCryptoKeyUsageDeriveKey,
key.usages());
}
TEST_F(SharedCryptoTest, ImportJwkFailures) {
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
blink::WebCryptoKeyUsageMask usage_mask = blink::WebCryptoKeyUsageEncrypt;
// Baseline pass: each test below breaks a single item, so we start with a
// passing case to make sure each failure is caused by the isolated break.
// Each breaking subtest below resets the dictionary to this passing case when
// complete.
base::DictionaryValue dict;
RestoreJwkOctDictionary(&dict);
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
// Fail on empty JSON.
EXPECT_EQ(
Status::ErrorImportEmptyKeyData(),
ImportKeyJwk(
CryptoData(MakeJsonVector("")), algorithm, false, usage_mask, &key));
// Fail on invalid JSON.
const std::vector<uint8> bad_json_vec = MakeJsonVector(
"{"
"\"kty\" : \"oct\","
"\"alg\" : \"HS256\","
"\"use\" : ");
EXPECT_EQ(Status::ErrorJwkNotDictionary(),
ImportKeyJwk(
CryptoData(bad_json_vec), algorithm, false, usage_mask, &key));
// Fail on JWK alg present but unrecognized.
dict.SetString("alg", "A127CBC");
EXPECT_EQ(Status::ErrorJwkUnrecognizedAlgorithm(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on invalid kty.
dict.SetString("kty", "foo");
EXPECT_EQ(Status::ErrorJwkUnrecognizedKty(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on missing kty.
dict.Remove("kty", NULL);
EXPECT_EQ(Status::ErrorJwkPropertyMissing("kty"),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on kty wrong type.
dict.SetDouble("kty", 0.1);
EXPECT_EQ(Status::ErrorJwkPropertyWrongType("kty", "string"),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on invalid use.
dict.SetString("use", "foo");
EXPECT_EQ(Status::ErrorJwkUnrecognizedUse(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on invalid use (wrong type).
dict.SetBoolean("use", true);
EXPECT_EQ(Status::ErrorJwkPropertyWrongType("use", "string"),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on invalid extractable (wrong type).
dict.SetInteger("ext", 0);
EXPECT_EQ(Status::ErrorJwkPropertyWrongType("ext", "boolean"),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on invalid key_ops (wrong type).
dict.SetBoolean("key_ops", true);
EXPECT_EQ(Status::ErrorJwkPropertyWrongType("key_ops", "list"),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on invalid key_ops (wrong element value).
base::ListValue* key_ops = new base::ListValue;
// Note: the following call makes dict assume ownership of key_ops.
dict.Set("key_ops", key_ops);
key_ops->AppendString("foo");
EXPECT_EQ(Status::ErrorJwkUnrecognizedKeyop(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
}
TEST_F(SharedCryptoTest, ImportJwkOctFailures) {
base::DictionaryValue dict;
RestoreJwkOctDictionary(&dict);
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
blink::WebCryptoKeyUsageMask usage_mask = blink::WebCryptoKeyUsageEncrypt;
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
// Baseline pass.
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
EXPECT_EQ(algorithm.id(), key.algorithm().id());
EXPECT_FALSE(key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageEncrypt, key.usages());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
// The following are specific failure cases for when kty = "oct".
// Fail on missing k.
dict.Remove("k", NULL);
EXPECT_EQ(Status::ErrorJwkPropertyMissing("k"),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on bad b64 encoding for k.
dict.SetString("k", "Qk3f0DsytU8lfza2au #$% Htaw2xpop9GYyTuH0p5GghxTI=");
EXPECT_EQ(Status::ErrorJwkBase64Decode("k"),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on empty k.
dict.SetString("k", "");
EXPECT_EQ(Status::ErrorJwkIncorrectKeyLength(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on k actual length (120 bits) inconsistent with the embedded JWK alg
// value (128) for an AES key.
dict.SetString("k", "AVj42h0Y5aqGtE3yluKL");
EXPECT_EQ(Status::ErrorJwkIncorrectKeyLength(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
// Fail on k actual length (192 bits) inconsistent with the embedded JWK alg
// value (128) for an AES key.
dict.SetString("k", "dGhpcyAgaXMgIDI0ICBieXRlcyBsb25n");
EXPECT_EQ(Status::ErrorJwkIncorrectKeyLength(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkOctDictionary(&dict);
}
TEST_F(SharedCryptoTest, MAYBE(ImportExportJwkRsaPublicKey)) {
// This test uses kPublicKeySpkiDerHex as the RSA key. The data below
// represents the modulus and public exponent extracted from this SPKI blob.
// These values appear explicitly in the JWK rendering of the key.
const std::string n_hex =
"A56E4A0E701017589A5187DC7EA841D156F2EC0E36AD52A44DFEB1E61F7AD991D8C51056"
"FFEDB162B4C0F283A12A88A394DFF526AB7291CBB307CEABFCE0B1DFD5CD9508096D5B2B"
"8B6DF5D671EF6377C0921CB23C270A70E2598E6FF89D19F105ACC2D3F0CB35F29280E138"
"6B6F64C4EF22E1E1F20D0CE8CFFB2249BD9A2137";
const std::string e_hex = "010001";
struct TestCase {
const blink::WebCryptoAlgorithm algorithm;
const blink::WebCryptoKeyUsageMask usage;
const char* const jwk_alg;
};
const TestCase kTests[] = {
// RSAES-PKCS1-v1_5
{CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5),
blink::WebCryptoKeyUsageEncrypt, "RSA1_5"},
// RSASSA-PKCS1-v1_5 SHA-1
{CreateRsaHashedImportAlgorithm(
blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha1),
blink::WebCryptoKeyUsageSign, "RS1"},
// RSASSA-PKCS1-v1_5 SHA-256
{CreateRsaHashedImportAlgorithm(
blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha256),
blink::WebCryptoKeyUsageSign, "RS256"},
// RSASSA-PKCS1-v1_5 SHA-384
{CreateRsaHashedImportAlgorithm(
blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha384),
blink::WebCryptoKeyUsageSign, "RS384"},
// RSASSA-PKCS1-v1_5 SHA-512
{CreateRsaHashedImportAlgorithm(
blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha512),
blink::WebCryptoKeyUsageSign, "RS512"}};
for (size_t test_index = 0; test_index < ARRAYSIZE_UNSAFE(kTests);
++test_index) {
SCOPED_TRACE(test_index);
const TestCase& test = kTests[test_index];
// Import the spki to create a public key
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(HexStringToBytes(kPublicKeySpkiDerHex)),
test.algorithm,
true,
test.usage,
&public_key));
// Export the public key as JWK and verify its contents
std::vector<uint8> jwk;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatJwk, public_key, &jwk));
EXPECT_TRUE(VerifyPublicJwk(jwk, test.jwk_alg, n_hex, e_hex, test.usage));
// Import the JWK back in to create a new key
blink::WebCryptoKey public_key2 = blink::WebCryptoKey::createNull();
EXPECT_EQ(
Status::Success(),
ImportKeyJwk(
CryptoData(jwk), test.algorithm, true, test.usage, &public_key2));
EXPECT_TRUE(public_key2.handle());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key2.type());
EXPECT_EQ(true, public_key2.extractable());
EXPECT_EQ(test.algorithm.id(), public_key2.algorithm().id());
// Export the new key as spki and compare to the original.
std::vector<uint8> spki;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatSpki, public_key2, &spki));
EXPECT_BYTES_EQ_HEX(kPublicKeySpkiDerHex, CryptoData(spki));
}
}
TEST_F(SharedCryptoTest, MAYBE(ImportJwkRsaFailures)) {
base::DictionaryValue dict;
RestoreJwkRsaDictionary(&dict);
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKeyUsageMask usage_mask = blink::WebCryptoKeyUsageEncrypt;
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
// An RSA public key JWK _must_ have an "n" (modulus) and an "e" (exponent)
// entry, while an RSA private key must have those plus at least a "d"
// (private exponent) entry.
// See http://tools.ietf.org/html/draft-ietf-jose-json-web-algorithms-18,
// section 6.3.
// Baseline pass.
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
EXPECT_EQ(algorithm.id(), key.algorithm().id());
EXPECT_FALSE(key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageEncrypt, key.usages());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, key.type());
// The following are specific failure cases for when kty = "RSA".
// Fail if either "n" or "e" is not present or malformed.
const std::string kKtyParmName[] = {"n", "e"};
for (size_t idx = 0; idx < ARRAYSIZE_UNSAFE(kKtyParmName); ++idx) {
// Fail on missing parameter.
dict.Remove(kKtyParmName[idx], NULL);
EXPECT_NE(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkRsaDictionary(&dict);
// Fail on bad b64 parameter encoding.
dict.SetString(kKtyParmName[idx], "Qk3f0DsytU8lfza2au #$% Htaw2xpop9yTuH0");
EXPECT_NE(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkRsaDictionary(&dict);
// Fail on empty parameter.
dict.SetString(kKtyParmName[idx], "");
EXPECT_NE(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkRsaDictionary(&dict);
}
// Fail if "d" parameter is present, implying the JWK is a private key, which
// is not supported.
dict.SetString("d", "Qk3f0Dsyt");
EXPECT_EQ(Status::ErrorJwkRsaPrivateKeyUnsupported(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
RestoreJwkRsaDictionary(&dict);
}
TEST_F(SharedCryptoTest, MAYBE(ImportJwkInputConsistency)) {
// The Web Crypto spec says that if a JWK value is present, but is
// inconsistent with the input value, the operation must fail.
// Consistency rules when JWK value is not present: Inputs should be used.
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
bool extractable = false;
blink::WebCryptoAlgorithm algorithm =
CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256);
blink::WebCryptoKeyUsageMask usage_mask = blink::WebCryptoKeyUsageVerify;
base::DictionaryValue dict;
dict.SetString("kty", "oct");
dict.SetString("k", "l3nZEgZCeX8XRwJdWyK3rGB8qwjhdY8vOkbIvh4lxTuMao9Y_--hdg");
std::vector<uint8> json_vec = MakeJsonVector(dict);
EXPECT_EQ(
Status::Success(),
ImportKeyJwk(
CryptoData(json_vec), algorithm, extractable, usage_mask, &key));
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(extractable, key.extractable());
EXPECT_EQ(blink::WebCryptoAlgorithmIdHmac, key.algorithm().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha256,
key.algorithm().hmacParams()->hash().id());
EXPECT_EQ(320u, key.algorithm().hmacParams()->lengthBits());
EXPECT_EQ(blink::WebCryptoKeyUsageVerify, key.usages());
key = blink::WebCryptoKey::createNull();
// Consistency rules when JWK value exists: Fail if inconsistency is found.
// Pass: All input values are consistent with the JWK values.
dict.Clear();
dict.SetString("kty", "oct");
dict.SetString("alg", "HS256");
dict.SetString("use", "sig");
dict.SetBoolean("ext", false);
dict.SetString("k", "l3nZEgZCeX8XRwJdWyK3rGB8qwjhdY8vOkbIvh4lxTuMao9Y_--hdg");
json_vec = MakeJsonVector(dict);
EXPECT_EQ(
Status::Success(),
ImportKeyJwk(
CryptoData(json_vec), algorithm, extractable, usage_mask, &key));
// Extractable cases:
// 1. input=T, JWK=F ==> fail (inconsistent)
// 4. input=F, JWK=F ==> pass, result extractable is F
// 2. input=T, JWK=T ==> pass, result extractable is T
// 3. input=F, JWK=T ==> pass, result extractable is F
EXPECT_EQ(
Status::ErrorJwkExtInconsistent(),
ImportKeyJwk(CryptoData(json_vec), algorithm, true, usage_mask, &key));
EXPECT_EQ(
Status::Success(),
ImportKeyJwk(CryptoData(json_vec), algorithm, false, usage_mask, &key));
EXPECT_FALSE(key.extractable());
dict.SetBoolean("ext", true);
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, true, usage_mask, &key));
EXPECT_TRUE(key.extractable());
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, false, usage_mask, &key));
EXPECT_FALSE(key.extractable());
dict.SetBoolean("ext", true); // restore previous value
// Fail: Input algorithm (AES-CBC) is inconsistent with JWK value
// (HMAC SHA256).
EXPECT_EQ(Status::ErrorJwkAlgorithmInconsistent(),
ImportKeyJwk(CryptoData(json_vec),
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
extractable,
usage_mask,
&key));
// Fail: Input algorithm (HMAC SHA1) is inconsistent with JWK value
// (HMAC SHA256).
EXPECT_EQ(
Status::ErrorJwkAlgorithmInconsistent(),
ImportKeyJwk(CryptoData(json_vec),
CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha1),
extractable,
usage_mask,
&key));
// Pass: JWK alg missing but input algorithm specified: use input value
dict.Remove("alg", NULL);
EXPECT_EQ(Status::Success(),
ImportKeyJwkFromDict(
dict,
CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256),
extractable,
usage_mask,
&key));
EXPECT_EQ(blink::WebCryptoAlgorithmIdHmac, algorithm.id());
dict.SetString("alg", "HS256");
// Fail: Input usage_mask (encrypt) is not a subset of the JWK value
// (sign|verify)
EXPECT_EQ(Status::ErrorJwkUseInconsistent(),
ImportKeyJwk(CryptoData(json_vec),
algorithm,
extractable,
blink::WebCryptoKeyUsageEncrypt,
&key));
// Fail: Input usage_mask (encrypt|sign|verify) is not a subset of the JWK
// value (sign|verify)
usage_mask = blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageSign |
blink::WebCryptoKeyUsageVerify;
EXPECT_EQ(
Status::ErrorJwkUseInconsistent(),
ImportKeyJwk(
CryptoData(json_vec), algorithm, extractable, usage_mask, &key));
// TODO(padolph): kty vs alg consistency tests: Depending on the kty value,
// only certain alg values are permitted. For example, when kty = "RSA" alg
// must be of the RSA family, or when kty = "oct" alg must be symmetric
// algorithm.
// TODO(padolph): key_ops consistency tests
}
TEST_F(SharedCryptoTest, MAYBE(ImportJwkHappy)) {
// This test verifies the happy path of JWK import, including the application
// of the imported key material.
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
bool extractable = false;
blink::WebCryptoAlgorithm algorithm =
CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256);
blink::WebCryptoKeyUsageMask usage_mask = blink::WebCryptoKeyUsageSign;
// Import a symmetric key JWK and HMAC-SHA256 sign()
// Uses the first SHA256 test vector from the HMAC sample set above.
base::DictionaryValue dict;
dict.SetString("kty", "oct");
dict.SetString("alg", "HS256");
dict.SetString("use", "sig");
dict.SetBoolean("ext", false);
dict.SetString("k", "l3nZEgZCeX8XRwJdWyK3rGB8qwjhdY8vOkbIvh4lxTuMao9Y_--hdg");
ASSERT_EQ(
Status::Success(),
ImportKeyJwkFromDict(dict, algorithm, extractable, usage_mask, &key));
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha256,
key.algorithm().hmacParams()->hash().id());
const std::vector<uint8> message_raw = HexStringToBytes(
"b1689c2591eaf3c9e66070f8a77954ffb81749f1b00346f9dfe0b2ee905dcc288baf4a"
"92de3f4001dd9f44c468c3d07d6c6ee82faceafc97c2fc0fc0601719d2dcd0aa2aec92"
"d1b0ae933c65eb06a03c9c935c2bad0459810241347ab87e9f11adb30415424c6c7f5f"
"22a003b8ab8de54f6ded0e3ab9245fa79568451dfa258e");
std::vector<uint8> output;
ASSERT_EQ(Status::Success(),
Sign(CreateAlgorithm(blink::WebCryptoAlgorithmIdHmac),
key,
CryptoData(message_raw),
&output));
const std::string mac_raw =
"769f00d3e6a6cc1fb426a14a4f76c6462e6149726e0dee0ec0cf97a16605ac8b";
EXPECT_BYTES_EQ_HEX(mac_raw, output);
// TODO(padolph): Import an RSA public key JWK and use it
}
TEST_F(SharedCryptoTest, MAYBE(ImportExportJwkSymmetricKey)) {
// Raw keys are generated by openssl:
// % openssl rand -hex <key length bytes>
const char* const key_hex_128 = "3f1e7cd4f6f8543f6b1e16002e688623";
const char* const key_hex_192 =
"ed91f916dc034eba68a0f9e7f34ddd48b98bd2848109e243";
const char* const key_hex_256 =
"bd08286b81a74783fd1ccf46b7e05af84ee25ae021210074159e0c4d9d907692";
const char* const key_hex_384 =
"a22c5441c8b185602283d64c7221de1d0951e706bfc09539435ec0e0ed614e1d406623f2"
"b31d31819fec30993380dd82";
const char* const key_hex_512 =
"5834f639000d4cf82de124fbfd26fb88d463e99f839a76ba41ac88967c80a3f61e1239a4"
"52e573dba0750e988152988576efd75b8d0229b7aca2ada2afd392ee";
const blink::WebCryptoAlgorithm aes_cbc_alg =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
const blink::WebCryptoAlgorithm aes_gcm_alg =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesGcm);
const blink::WebCryptoAlgorithm aes_kw_alg =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw);
const blink::WebCryptoAlgorithm hmac_sha_1_alg =
webcrypto::CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha1);
const blink::WebCryptoAlgorithm hmac_sha_256_alg =
webcrypto::CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256);
const blink::WebCryptoAlgorithm hmac_sha_384_alg =
webcrypto::CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha384);
const blink::WebCryptoAlgorithm hmac_sha_512_alg =
webcrypto::CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha512);
struct TestCase {
const char* const key_hex;
const blink::WebCryptoAlgorithm algorithm;
const blink::WebCryptoKeyUsageMask usage;
const char* const jwk_alg;
};
// TODO(padolph): Test AES-CTR JWK export, once AES-CTR import works.
const TestCase kTests[] = {
// AES-CBC 128
{key_hex_128, aes_cbc_alg,
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
"A128CBC"},
// AES-CBC 192
{key_hex_192, aes_cbc_alg, blink::WebCryptoKeyUsageEncrypt, "A192CBC"},
// AES-CBC 256
{key_hex_256, aes_cbc_alg, blink::WebCryptoKeyUsageDecrypt, "A256CBC"},
// AES-GCM 128
{key_hex_128, aes_gcm_alg,
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
"A128GCM"},
// AES-CGM 192
{key_hex_192, aes_gcm_alg, blink::WebCryptoKeyUsageEncrypt, "A192GCM"},
// AES-GCM 256
{key_hex_256, aes_gcm_alg, blink::WebCryptoKeyUsageDecrypt, "A256GCM"},
// AES-KW 128
{key_hex_128, aes_kw_alg,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
"A128KW"},
// AES-KW 192
{key_hex_192, aes_kw_alg,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
"A192KW"},
// AES-KW 256
{key_hex_256, aes_kw_alg,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
"A256KW"},
// HMAC SHA-1
{key_hex_256, hmac_sha_1_alg,
blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify, "HS1"},
// HMAC SHA-384
{key_hex_384, hmac_sha_384_alg, blink::WebCryptoKeyUsageSign, "HS384"},
// HMAC SHA-512
{key_hex_512, hmac_sha_512_alg, blink::WebCryptoKeyUsageVerify, "HS512"},
// Large usage value
{key_hex_256, aes_cbc_alg,
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt |
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
"A256CBC"},
// Zero usage value
{key_hex_512, hmac_sha_512_alg, 0, "HS512"},
};
// Round-trip import/export each key.
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
std::vector<uint8> json;
for (size_t test_index = 0; test_index < ARRAYSIZE_UNSAFE(kTests);
++test_index) {
SCOPED_TRACE(test_index);
const TestCase& test = kTests[test_index];
// Skip AES-GCM tests where not supported.
if (test.algorithm.id() == blink::WebCryptoAlgorithmIdAesGcm &&
!SupportsAesGcm()) {
continue;
}
// Import a raw key.
key = ImportSecretKeyFromRaw(
HexStringToBytes(test.key_hex), test.algorithm, test.usage);
// Export the key in JWK format and validate.
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatJwk, key, &json));
EXPECT_TRUE(VerifySecretJwk(json, test.jwk_alg, test.key_hex, test.usage));
// Import the JWK-formatted key.
ASSERT_EQ(
Status::Success(),
ImportKeyJwk(CryptoData(json), test.algorithm, true, test.usage, &key));
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(test.algorithm.id(), key.algorithm().id());
EXPECT_EQ(true, key.extractable());
EXPECT_EQ(test.usage, key.usages());
// Export the key in raw format and compare to the original.
std::vector<uint8> key_raw_out;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &key_raw_out));
EXPECT_BYTES_EQ_HEX(test.key_hex, key_raw_out);
}
}
TEST_F(SharedCryptoTest, MAYBE(ExportJwkEmptySymmetricKey)) {
const blink::WebCryptoAlgorithm import_algorithm =
webcrypto::CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha1);
blink::WebCryptoKeyUsageMask usages = blink::WebCryptoKeyUsageSign;
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
// Import a zero-byte HMAC key.
const char key_data_hex[] = "";
key = ImportSecretKeyFromRaw(
HexStringToBytes(key_data_hex), import_algorithm, usages);
EXPECT_EQ(0u, key.algorithm().hmacParams()->lengthBits());
// Export the key in JWK format and validate.
std::vector<uint8> json;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatJwk, key, &json));
EXPECT_TRUE(VerifySecretJwk(json, "HS1", key_data_hex, usages));
// Now try re-importing the JWK key.
key = blink::WebCryptoKey::createNull();
EXPECT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatJwk,
CryptoData(json),
import_algorithm,
true,
usages,
&key));
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(0u, key.algorithm().hmacParams()->lengthBits());
std::vector<uint8> exported_key_data;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &exported_key_data));
EXPECT_EQ(0u, exported_key_data.size());
}
TEST_F(SharedCryptoTest, MAYBE(ImportExportSpki)) {
// Passing case: Import a valid RSA key in SPKI format.
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
ASSERT_EQ(
Status::Success(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(HexStringToBytes(kPublicKeySpkiDerHex)),
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5),
true,
blink::WebCryptoKeyUsageEncrypt,
&key));
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, key.type());
EXPECT_TRUE(key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageEncrypt, key.usages());
EXPECT_EQ(kModulusLengthBits,
key.algorithm().rsaParams()->modulusLengthBits());
EXPECT_BYTES_EQ_HEX(
"010001", CryptoData(key.algorithm().rsaParams()->publicExponent()));
// Failing case: Empty SPKI data
EXPECT_EQ(
Status::ErrorImportEmptyKeyData(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(std::vector<uint8>()),
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5),
true,
blink::WebCryptoKeyUsageEncrypt,
&key));
// Failing case: Bad DER encoding.
EXPECT_EQ(
Status::DataError(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(HexStringToBytes("618333c4cb")),
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5),
true,
blink::WebCryptoKeyUsageEncrypt,
&key));
// Failing case: Import RSA key but provide an inconsistent input algorithm.
EXPECT_EQ(Status::DataError(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(HexStringToBytes(kPublicKeySpkiDerHex)),
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageEncrypt,
&key));
// Passing case: Export a previously imported RSA public key in SPKI format
// and compare to original data.
std::vector<uint8> output;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatSpki, key, &output));
EXPECT_BYTES_EQ_HEX(kPublicKeySpkiDerHex, output);
// Failing case: Try to export a previously imported RSA public key in raw
// format (not allowed for a public key).
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &output));
// Failing case: Try to export a non-extractable key
ASSERT_EQ(
Status::Success(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(HexStringToBytes(kPublicKeySpkiDerHex)),
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5),
false,
blink::WebCryptoKeyUsageEncrypt,
&key));
EXPECT_TRUE(key.handle());
EXPECT_FALSE(key.extractable());
EXPECT_EQ(Status::ErrorKeyNotExtractable(),
ExportKey(blink::WebCryptoKeyFormatSpki, key, &output));
}
TEST_F(SharedCryptoTest, MAYBE(ImportExportPkcs8)) {
// Passing case: Import a valid RSA key in PKCS#8 format.
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
CreateRsaHashedImportAlgorithm(
blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha1),
true,
blink::WebCryptoKeyUsageSign,
&key));
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypePrivate, key.type());
EXPECT_TRUE(key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageSign, key.usages());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha1,
key.algorithm().rsaHashedParams()->hash().id());
EXPECT_EQ(kModulusLengthBits,
key.algorithm().rsaHashedParams()->modulusLengthBits());
EXPECT_BYTES_EQ_HEX(
"010001",
CryptoData(key.algorithm().rsaHashedParams()->publicExponent()));
std::vector<uint8> exported_key;
ASSERT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatPkcs8, key, &exported_key));
EXPECT_BYTES_EQ_HEX(kPrivateKeyPkcs8DerHex, exported_key);
// Failing case: Empty PKCS#8 data
EXPECT_EQ(Status::ErrorImportEmptyKeyData(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(std::vector<uint8>()),
CreateRsaHashedImportAlgorithm(
blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha1),
true,
blink::WebCryptoKeyUsageSign,
&key));
// Failing case: Bad DER encoding.
EXPECT_EQ(
Status::DataError(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(HexStringToBytes("618333c4cb")),
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5),
true,
blink::WebCryptoKeyUsageSign,
&key));
// Failing case: Import RSA key but provide an inconsistent input algorithm.
EXPECT_EQ(Status::DataError(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageSign,
&key));
}
TEST_F(SharedCryptoTest, MAYBE(GenerateKeyPairRsa)) {
// Note: using unrealistic short key lengths here to avoid bogging down tests.
// Successful WebCryptoAlgorithmIdRsaEsPkcs1v1_5 key generation.
const unsigned int modulus_length = 256;
const std::vector<uint8> public_exponent = HexStringToBytes("010001");
blink::WebCryptoAlgorithm algorithm =
CreateRsaKeyGenAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5,
modulus_length,
public_exponent);
bool extractable = true;
const blink::WebCryptoKeyUsageMask usage_mask = 0;
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
GenerateKeyPair(
algorithm, extractable, usage_mask, &public_key, &private_key));
EXPECT_FALSE(public_key.isNull());
EXPECT_FALSE(private_key.isNull());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key.type());
EXPECT_EQ(blink::WebCryptoKeyTypePrivate, private_key.type());
EXPECT_TRUE(public_key.extractable());
EXPECT_EQ(extractable, private_key.extractable());
EXPECT_EQ(usage_mask, public_key.usages());
EXPECT_EQ(usage_mask, private_key.usages());
// Try exporting the generated key pair, and then re-importing to verify that
// the exported data was valid.
std::vector<uint8> public_key_spki;
EXPECT_EQ(
Status::Success(),
ExportKey(blink::WebCryptoKeyFormatSpki, public_key, &public_key_spki));
public_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(
Status::Success(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(public_key_spki),
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5),
true,
usage_mask,
&public_key));
EXPECT_EQ(modulus_length,
public_key.algorithm().rsaParams()->modulusLengthBits());
std::vector<uint8> private_key_pkcs8;
EXPECT_EQ(
Status::Success(),
ExportKey(
blink::WebCryptoKeyFormatPkcs8, private_key, &private_key_pkcs8));
private_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(
Status::Success(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(private_key_pkcs8),
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5),
true,
usage_mask,
&private_key));
EXPECT_EQ(modulus_length,
private_key.algorithm().rsaParams()->modulusLengthBits());
// Fail with bad modulus.
algorithm = CreateRsaKeyGenAlgorithm(
blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5, 0, public_exponent);
EXPECT_EQ(Status::ErrorGenerateRsaZeroModulus(),
GenerateKeyPair(
algorithm, extractable, usage_mask, &public_key, &private_key));
// Fail with bad exponent: larger than unsigned long.
unsigned int exponent_length = sizeof(unsigned long) + 1; // NOLINT
const std::vector<uint8> long_exponent(exponent_length, 0x01);
algorithm = CreateRsaKeyGenAlgorithm(
blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5, modulus_length, long_exponent);
EXPECT_EQ(Status::ErrorGenerateKeyPublicExponent(),
GenerateKeyPair(
algorithm, extractable, usage_mask, &public_key, &private_key));
// Fail with bad exponent: empty.
const std::vector<uint8> empty_exponent;
algorithm =
CreateRsaKeyGenAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5,
modulus_length,
empty_exponent);
EXPECT_EQ(Status::ErrorGenerateKeyPublicExponent(),
GenerateKeyPair(
algorithm, extractable, usage_mask, &public_key, &private_key));
// Fail with bad exponent: all zeros.
std::vector<uint8> exponent_with_leading_zeros(15, 0x00);
algorithm =
CreateRsaKeyGenAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5,
modulus_length,
exponent_with_leading_zeros);
EXPECT_EQ(Status::ErrorGenerateKeyPublicExponent(),
GenerateKeyPair(
algorithm, extractable, usage_mask, &public_key, &private_key));
// Key generation success using exponent with leading zeros.
exponent_with_leading_zeros.insert(exponent_with_leading_zeros.end(),
public_exponent.begin(),
public_exponent.end());
algorithm =
CreateRsaKeyGenAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5,
modulus_length,
exponent_with_leading_zeros);
EXPECT_EQ(Status::Success(),
GenerateKeyPair(
algorithm, extractable, usage_mask, &public_key, &private_key));
EXPECT_FALSE(public_key.isNull());
EXPECT_FALSE(private_key.isNull());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key.type());
EXPECT_EQ(blink::WebCryptoKeyTypePrivate, private_key.type());
EXPECT_TRUE(public_key.extractable());
EXPECT_EQ(extractable, private_key.extractable());
EXPECT_EQ(usage_mask, public_key.usages());
EXPECT_EQ(usage_mask, private_key.usages());
// Successful WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 key generation (sha256)
algorithm =
CreateRsaHashedKeyGenAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha256,
modulus_length,
public_exponent);
EXPECT_EQ(Status::Success(),
GenerateKeyPair(
algorithm, extractable, usage_mask, &public_key, &private_key));
EXPECT_FALSE(public_key.isNull());
EXPECT_FALSE(private_key.isNull());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key.type());
EXPECT_EQ(blink::WebCryptoKeyTypePrivate, private_key.type());
EXPECT_EQ(modulus_length,
public_key.algorithm().rsaHashedParams()->modulusLengthBits());
EXPECT_EQ(modulus_length,
private_key.algorithm().rsaHashedParams()->modulusLengthBits());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha256,
public_key.algorithm().rsaHashedParams()->hash().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha256,
private_key.algorithm().rsaHashedParams()->hash().id());
EXPECT_TRUE(public_key.extractable());
EXPECT_EQ(extractable, private_key.extractable());
EXPECT_EQ(usage_mask, public_key.usages());
EXPECT_EQ(usage_mask, private_key.usages());
// Successful WebCryptoAlgorithmIdRsaSsaPkcs1v1_5 key generation.
algorithm =
CreateRsaHashedKeyGenAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha1,
modulus_length,
public_exponent);
EXPECT_EQ(
Status::Success(),
GenerateKeyPair(algorithm, false, usage_mask, &public_key, &private_key));
EXPECT_FALSE(public_key.isNull());
EXPECT_FALSE(private_key.isNull());
EXPECT_EQ(blink::WebCryptoKeyTypePublic, public_key.type());
EXPECT_EQ(blink::WebCryptoKeyTypePrivate, private_key.type());
EXPECT_EQ(modulus_length,
public_key.algorithm().rsaHashedParams()->modulusLengthBits());
EXPECT_EQ(modulus_length,
private_key.algorithm().rsaHashedParams()->modulusLengthBits());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha1,
public_key.algorithm().rsaHashedParams()->hash().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha1,
private_key.algorithm().rsaHashedParams()->hash().id());
// Even though "extractable" was set to false, the public key remains
// extractable.
EXPECT_TRUE(public_key.extractable());
EXPECT_FALSE(private_key.extractable());
EXPECT_EQ(usage_mask, public_key.usages());
EXPECT_EQ(usage_mask, private_key.usages());
// Exporting a private key as SPKI format doesn't make sense. However this
// will first fail because the key is not extractable.
std::vector<uint8> output;
EXPECT_EQ(Status::ErrorKeyNotExtractable(),
ExportKey(blink::WebCryptoKeyFormatSpki, private_key, &output));
// Re-generate an extractable private_key and try to export it as SPKI format.
// This should fail since spki is for public keys.
EXPECT_EQ(
Status::Success(),
GenerateKeyPair(algorithm, true, usage_mask, &public_key, &private_key));
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
ExportKey(blink::WebCryptoKeyFormatSpki, private_key, &output));
}
TEST_F(SharedCryptoTest, MAYBE(RsaEsRoundTrip)) {
// Import a key pair.
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(
HexStringToBytes(kPublicKeySpkiDerHex),
HexStringToBytes(kPrivateKeyPkcs8DerHex),
algorithm,
false,
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
&public_key,
&private_key);
// Make a maximum-length data message. RSAES can operate on messages up to
// length of k - 11 bytes, where k is the octet length of the RSA modulus.
const unsigned int kMaxMsgSizeBytes = kModulusLengthBits / 8 - 11;
// There are two hex chars for each byte.
const unsigned int kMsgHexSize = kMaxMsgSizeBytes * 2;
char max_data_hex[kMsgHexSize + 1];
std::fill(&max_data_hex[0], &max_data_hex[0] + kMsgHexSize, 'a');
max_data_hex[kMsgHexSize] = '\0';
// Verify encrypt / decrypt round trip on a few messages. Note that RSA
// encryption does not support empty input.
algorithm = CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
const char* const kTestDataHex[] = {"ff", "0102030405060708090a0b0c0d0e0f",
max_data_hex};
std::vector<uint8> encrypted_data;
std::vector<uint8> decrypted_data;
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kTestDataHex); ++i) {
SCOPED_TRACE(i);
EXPECT_EQ(Status::Success(),
Encrypt(algorithm,
public_key,
CryptoData(HexStringToBytes(kTestDataHex[i])),
&encrypted_data));
EXPECT_EQ(kModulusLengthBits / 8, encrypted_data.size());
ASSERT_EQ(Status::Success(),
Decrypt(algorithm,
private_key,
CryptoData(encrypted_data),
&decrypted_data));
EXPECT_BYTES_EQ_HEX(kTestDataHex[i], decrypted_data);
}
}
TEST_F(SharedCryptoTest, 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.
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 =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(
rsa_spki_der,
rsa_pkcs8_der,
algorithm,
false,
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
&public_key,
&private_key);
// Decrypt the known-good ciphertext with the private key. As a check we must
// get the known original cleartext.
std::vector<uint8> decrypted_data;
ASSERT_EQ(
Status::Success(),
Decrypt(algorithm, private_key, CryptoData(ciphertext), &decrypted_data));
EXPECT_BYTES_EQ(cleartext, decrypted_data);
// Encrypt this decrypted data with the public key.
std::vector<uint8> encrypted_data;
ASSERT_EQ(
Status::Success(),
Encrypt(
algorithm, public_key, CryptoData(decrypted_data), &encrypted_data));
EXPECT_EQ(128u, encrypted_data.size());
// Finally, decrypt the newly encrypted result with the private key, and
// compare to the known original cleartext.
decrypted_data.clear();
ASSERT_EQ(
Status::Success(),
Decrypt(
algorithm, private_key, CryptoData(encrypted_data), &decrypted_data));
EXPECT_EQ(cleartext, decrypted_data);
}
TEST_F(SharedCryptoTest, MAYBE(RsaEsFailures)) {
// Import a key pair.
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(
HexStringToBytes(kPublicKeySpkiDerHex),
HexStringToBytes(kPrivateKeyPkcs8DerHex),
algorithm,
false,
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt,
&public_key,
&private_key);
// Fail encrypt with a private key.
std::vector<uint8> encrypted_data;
const std::string message_hex_str("0102030405060708090a0b0c0d0e0f");
const std::vector<uint8> message_hex(HexStringToBytes(message_hex_str));
EXPECT_EQ(
Status::ErrorUnexpectedKeyType(),
Encrypt(
algorithm, private_key, CryptoData(message_hex), &encrypted_data));
// Fail encrypt with empty message.
EXPECT_EQ(Status::ErrorDataTooSmall(),
Encrypt(algorithm,
public_key,
CryptoData(std::vector<uint8>()),
&encrypted_data));
// Fail encrypt with message too large. RSAES can operate on messages up to
// length of k - 11 bytes, where k is the octet length of the RSA modulus.
const unsigned int kMaxMsgSizeBytes = kModulusLengthBits / 8 - 11;
EXPECT_EQ(Status::ErrorDataTooLarge(),
Encrypt(algorithm,
public_key,
CryptoData(std::vector<uint8>(kMaxMsgSizeBytes + 1, '0')),
&encrypted_data));
// Generate encrypted data.
EXPECT_EQ(
Status::Success(),
Encrypt(algorithm, public_key, CryptoData(message_hex), &encrypted_data));
// Fail decrypt with a public key.
std::vector<uint8> decrypted_data;
EXPECT_EQ(
Status::ErrorUnexpectedKeyType(),
Decrypt(
algorithm, public_key, CryptoData(encrypted_data), &decrypted_data));
// Corrupt encrypted data; ensure decrypt fails because padding was disrupted.
EXPECT_EQ(Status::OperationError(),
Decrypt(algorithm,
private_key,
CryptoData(Corrupted(encrypted_data)),
&decrypted_data));
// TODO(padolph): Are there other specific data corruption scenarios to
// consider?
// Do a successful decrypt with good data just for confirmation.
EXPECT_EQ(
Status::Success(),
Decrypt(
algorithm, private_key, CryptoData(encrypted_data), &decrypted_data));
EXPECT_BYTES_EQ_HEX(message_hex_str, decrypted_data);
}
TEST_F(SharedCryptoTest, MAYBE(RsaSsaSignVerifyFailures)) {
// Import a key pair.
blink::WebCryptoKeyUsageMask usage_mask =
blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify;
blink::WebCryptoAlgorithm importAlgorithm =
CreateRsaHashedImportAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha1);
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(HexStringToBytes(kPublicKeySpkiDerHex),
HexStringToBytes(kPrivateKeyPkcs8DerHex),
importAlgorithm,
false,
usage_mask,
&public_key,
&private_key);
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5);
std::vector<uint8> signature;
bool signature_match;
// Compute a signature.
const std::vector<uint8> data = HexStringToBytes("010203040506070809");
ASSERT_EQ(Status::Success(),
Sign(algorithm, private_key, CryptoData(data), &signature));
// Ensure truncated signature does not verify by passing one less byte.
EXPECT_EQ(Status::Success(),
VerifySignature(
algorithm,
public_key,
CryptoData(Uint8VectorStart(signature), signature.size() - 1),
CryptoData(data),
&signature_match));
EXPECT_FALSE(signature_match);
// Ensure truncated signature does not verify by passing no bytes.
EXPECT_EQ(Status::Success(),
VerifySignature(algorithm,
public_key,
CryptoData(),
CryptoData(data),
&signature_match));
EXPECT_FALSE(signature_match);
// Ensure corrupted signature does not verify.
std::vector<uint8> corrupt_sig = signature;
corrupt_sig[corrupt_sig.size() / 2] ^= 0x1;
EXPECT_EQ(Status::Success(),
VerifySignature(algorithm,
public_key,
CryptoData(corrupt_sig),
CryptoData(data),
&signature_match));
EXPECT_FALSE(signature_match);
// Ensure signatures that are greater than the modulus size fail.
const unsigned int long_message_size_bytes = 1024;
DCHECK_GT(long_message_size_bytes, kModulusLengthBits / 8);
const unsigned char kLongSignature[long_message_size_bytes] = {0};
EXPECT_EQ(Status::Success(),
VerifySignature(algorithm,
public_key,
CryptoData(kLongSignature, sizeof(kLongSignature)),
CryptoData(data),
&signature_match));
EXPECT_FALSE(signature_match);
// Ensure that verifying using a private key, rather than a public key, fails.
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
VerifySignature(algorithm,
private_key,
CryptoData(signature),
CryptoData(data),
&signature_match));
// Ensure that signing using a public key, rather than a private key, fails.
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
Sign(algorithm, public_key, CryptoData(data), &signature));
// Ensure that signing and verifying with an incompatible algorithm fails.
algorithm = CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
EXPECT_EQ(Status::ErrorUnexpected(),
Sign(algorithm, private_key, CryptoData(data), &signature));
EXPECT_EQ(Status::ErrorUnexpected(),
VerifySignature(algorithm,
public_key,
CryptoData(signature),
CryptoData(data),
&signature_match));
// Some crypto libraries (NSS) can automatically select the RSA SSA inner hash
// based solely on the contents of the input signature data. In the Web Crypto
// implementation, the inner hash should be specified uniquely by the key
// algorithm parameter. To validate this behavior, call Verify with a computed
// signature that used one hash type (SHA-1), but pass in a key with a
// different inner hash type (SHA-256). If the hash type is determined by the
// signature itself (undesired), the verify will pass, while if the hash type
// is specified by the key algorithm (desired), the verify will fail.
// Compute a signature using SHA-1 as the inner hash.
EXPECT_EQ(Status::Success(),
Sign(CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5),
private_key,
CryptoData(data),
&signature));
blink::WebCryptoKey public_key_256 = blink::WebCryptoKey::createNull();
EXPECT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatSpki,
CryptoData(HexStringToBytes(kPublicKeySpkiDerHex)),
CreateRsaHashedImportAlgorithm(
blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha256),
true,
usage_mask,
&public_key_256));
// Now verify using an algorithm whose inner hash is SHA-256, not SHA-1. The
// signature should not verify.
// NOTE: public_key was produced by generateKey, and so its associated
// algorithm has WebCryptoRsaKeyGenParams and not WebCryptoRsaSsaParams. Thus
// it has no inner hash to conflict with the input algorithm.
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha1,
private_key.algorithm().rsaHashedParams()->hash().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha256,
public_key_256.algorithm().rsaHashedParams()->hash().id());
bool is_match;
EXPECT_EQ(Status::Success(),
VerifySignature(
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5),
public_key_256,
CryptoData(signature),
CryptoData(data),
&is_match));
EXPECT_FALSE(is_match);
}
TEST_F(SharedCryptoTest, MAYBE(RsaSignVerifyKnownAnswer)) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("pkcs1v15_sign.json", &tests));
// Import the key pair.
blink::WebCryptoAlgorithm importAlgorithm =
CreateRsaHashedImportAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5,
blink::WebCryptoAlgorithmIdSha1);
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(
HexStringToBytes(kPublicKeySpkiDerHex),
HexStringToBytes(kPrivateKeyPkcs8DerHex),
importAlgorithm,
false,
blink::WebCryptoKeyUsageSign | blink::WebCryptoKeyUsageVerify,
&public_key,
&private_key);
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaSsaPkcs1v1_5);
// Validate the signatures are computed and verified as expected.
std::vector<uint8> signature;
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.clear();
ASSERT_EQ(
Status::Success(),
Sign(algorithm, private_key, CryptoData(test_message), &signature));
EXPECT_BYTES_EQ(test_signature, signature);
bool is_match = false;
ASSERT_EQ(Status::Success(),
VerifySignature(algorithm,
public_key,
CryptoData(test_signature),
CryptoData(test_message),
&is_match));
EXPECT_TRUE(is_match);
}
}
TEST_F(SharedCryptoTest, MAYBE(AesKwKeyImport)) {
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw);
// Import a 128-bit Key Encryption Key (KEK)
std::string key_raw_hex_in = "025a8cf3f08b4f6c5f33bbc76a471939";
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(HexStringToBytes(key_raw_hex_in)),
algorithm,
true,
blink::WebCryptoKeyUsageWrapKey,
&key));
std::vector<uint8> key_raw_out;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &key_raw_out));
EXPECT_BYTES_EQ_HEX(key_raw_hex_in, key_raw_out);
// Import a 192-bit KEK
key_raw_hex_in = "c0192c6466b2370decbb62b2cfef4384544ffeb4d2fbc103";
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(HexStringToBytes(key_raw_hex_in)),
algorithm,
true,
blink::WebCryptoKeyUsageWrapKey,
&key));
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &key_raw_out));
EXPECT_BYTES_EQ_HEX(key_raw_hex_in, key_raw_out);
// Import a 256-bit Key Encryption Key (KEK)
key_raw_hex_in =
"e11fe66380d90fa9ebefb74e0478e78f95664d0c67ca20ce4a0b5842863ac46f";
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(HexStringToBytes(key_raw_hex_in)),
algorithm,
true,
blink::WebCryptoKeyUsageWrapKey,
&key));
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &key_raw_out));
EXPECT_BYTES_EQ_HEX(key_raw_hex_in, key_raw_out);
// Fail import of 0 length key
EXPECT_EQ(Status::ErrorImportAesKeyLength(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(HexStringToBytes("")),
algorithm,
true,
blink::WebCryptoKeyUsageWrapKey,
&key));
// Fail import of 124-bit KEK
key_raw_hex_in = "3e4566a2bdaa10cb68134fa66c15ddb";
EXPECT_EQ(Status::ErrorImportAesKeyLength(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(HexStringToBytes(key_raw_hex_in)),
algorithm,
true,
blink::WebCryptoKeyUsageWrapKey,
&key));
// Fail import of 200-bit KEK
key_raw_hex_in = "0a1d88608a5ad9fec64f1ada269ebab4baa2feeb8d95638c0e";
EXPECT_EQ(Status::ErrorImportAesKeyLength(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(HexStringToBytes(key_raw_hex_in)),
algorithm,
true,
blink::WebCryptoKeyUsageWrapKey,
&key));
// Fail import of 260-bit KEK
key_raw_hex_in =
"72d4e475ff34215416c9ad9c8281247a4d730c5f275ac23f376e73e3bce8d7d5a";
EXPECT_EQ(Status::ErrorImportAesKeyLength(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(HexStringToBytes(key_raw_hex_in)),
algorithm,
true,
blink::WebCryptoKeyUsageWrapKey,
&key));
}
TEST_F(SharedCryptoTest, MAYBE(UnwrapFailures)) {
// This test exercises the code path common to all unwrap operations.
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("aes_kw.json", &tests));
base::DictionaryValue* test;
ASSERT_TRUE(tests->GetDictionary(0, &test));
const std::vector<uint8> test_kek = GetBytesFromHexString(test, "kek");
const std::vector<uint8> test_ciphertext =
GetBytesFromHexString(test, "ciphertext");
// Using a key that does not have unwrapKey usage should fail.
blink::WebCryptoKey bad_wrapping_key = ImportSecretKeyFromRaw(
test_kek,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw),
blink::WebCryptoKeyUsageDecrypt); // <-- should be UnwrapKey
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(
Status::ErrorUnexpected(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(test_ciphertext),
bad_wrapping_key,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw),
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
// Using a wrapping algorithm that does not match the wrapping key algorithm
// should fail.
blink::WebCryptoKey wrapping_key = ImportSecretKeyFromRaw(
test_kek,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw),
blink::WebCryptoKeyUsageUnwrapKey);
EXPECT_EQ(
Status::ErrorUnexpected(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(test_ciphertext),
wrapping_key,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
}
TEST_F(SharedCryptoTest, MAYBE(AesKwRawSymkeyWrapUnwrapKnownAnswer)) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("aes_kw.json", &tests));
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));
const std::vector<uint8> test_kek = GetBytesFromHexString(test, "kek");
const std::vector<uint8> test_key = GetBytesFromHexString(test, "key");
const std::vector<uint8> test_ciphertext =
GetBytesFromHexString(test, "ciphertext");
const blink::WebCryptoAlgorithm wrapping_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw);
// Import the wrapping key.
blink::WebCryptoKey wrapping_key = ImportSecretKeyFromRaw(
test_kek,
wrapping_algorithm,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey);
// Import the key to be wrapped.
blink::WebCryptoKey key = ImportSecretKeyFromRaw(
test_key,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
blink::WebCryptoKeyUsageEncrypt);
// Wrap the key and verify the ciphertext result against the known answer.
std::vector<uint8> wrapped_key;
ASSERT_EQ(Status::Success(),
WrapKey(blink::WebCryptoKeyFormatRaw,
wrapping_key,
key,
wrapping_algorithm,
&wrapped_key));
EXPECT_BYTES_EQ(test_ciphertext, wrapped_key);
// Unwrap the known ciphertext to get a new test_key.
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(
Status::Success(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(test_ciphertext),
wrapping_key,
wrapping_algorithm,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
EXPECT_FALSE(key.isNull());
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc).id(),
key.algorithm().id());
EXPECT_EQ(true, key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageEncrypt, key.usages());
// Export the new key and compare its raw bytes with the original known key.
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
EXPECT_BYTES_EQ(test_key, raw_key);
}
}
TEST_F(SharedCryptoTest, MAYBE(AesKwRawSymkeyWrapUnwrapErrors)) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("aes_kw.json", &tests));
base::DictionaryValue* test;
// Use 256 bits of data with a 256-bit KEK
ASSERT_TRUE(tests->GetDictionary(5, &test));
const std::vector<uint8> test_kek = GetBytesFromHexString(test, "kek");
const std::vector<uint8> test_key = GetBytesFromHexString(test, "key");
const std::vector<uint8> test_ciphertext =
GetBytesFromHexString(test, "ciphertext");
const blink::WebCryptoAlgorithm wrapping_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw);
const blink::WebCryptoAlgorithm key_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc);
// Import the wrapping key.
blink::WebCryptoKey wrapping_key = ImportSecretKeyFromRaw(
test_kek,
wrapping_algorithm,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey);
// Import the key to be wrapped.
blink::WebCryptoKey key = ImportSecretKeyFromRaw(
test_key,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
blink::WebCryptoKeyUsageEncrypt);
// Unwrap with wrapped data too small must fail.
const std::vector<uint8> small_data(test_ciphertext.begin(),
test_ciphertext.begin() + 23);
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(Status::ErrorDataTooSmall(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(small_data),
wrapping_key,
wrapping_algorithm,
key_algorithm,
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
// Unwrap with wrapped data size not a multiple of 8 bytes must fail.
const std::vector<uint8> unaligned_data(test_ciphertext.begin(),
test_ciphertext.end() - 2);
EXPECT_EQ(Status::ErrorInvalidAesKwDataLength(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(unaligned_data),
wrapping_key,
wrapping_algorithm,
key_algorithm,
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
}
TEST_F(SharedCryptoTest, MAYBE(AesKwRawSymkeyUnwrapCorruptData)) {
scoped_ptr<base::ListValue> tests;
ASSERT_TRUE(ReadJsonTestFileToList("aes_kw.json", &tests));
base::DictionaryValue* test;
// Use 256 bits of data with a 256-bit KEK
ASSERT_TRUE(tests->GetDictionary(5, &test));
const std::vector<uint8> test_kek = GetBytesFromHexString(test, "kek");
const std::vector<uint8> test_key = GetBytesFromHexString(test, "key");
const std::vector<uint8> test_ciphertext =
GetBytesFromHexString(test, "ciphertext");
const blink::WebCryptoAlgorithm wrapping_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw);
// Import the wrapping key.
blink::WebCryptoKey wrapping_key = ImportSecretKeyFromRaw(
test_kek,
wrapping_algorithm,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey);
// Unwrap of a corrupted version of the known ciphertext should fail, due to
// AES-KW's built-in integrity check.
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(
Status::OperationError(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(Corrupted(test_ciphertext)),
wrapping_key,
wrapping_algorithm,
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
}
TEST_F(SharedCryptoTest, MAYBE(AesKwJwkSymkeyUnwrapKnownData)) {
// The following data lists a known HMAC SHA-256 key, then a JWK
// representation of this key which was encrypted ("wrapped") using AES-KW and
// the following wrapping key.
// For reference, the intermediate clear JWK is
// {"alg":"HS256","ext":true,"k":<b64urlKey>,"key_ops":["verify"],"kty":"oct"}
// (Not shown is space padding to ensure the cleartext meets the size
// requirements of the AES-KW algorithm.)
const std::vector<uint8> key_data = HexStringToBytes(
"000102030405060708090A0B0C0D0E0F000102030405060708090A0B0C0D0E0F");
const std::vector<uint8> wrapped_key_data = HexStringToBytes(
"14E6380B35FDC5B72E1994764B6CB7BFDD64E7832894356AAEE6C3768FC3D0F115E6B0"
"6729756225F999AA99FDF81FD6A359F1576D3D23DE6CB69C3937054EB497AC1E8C38D5"
"5E01B9783A20C8D930020932CF25926103002213D0FC37279888154FEBCEDF31832158"
"97938C5CFE5B10B4254D0C399F39D0");
const std::vector<uint8> wrapping_key_data =
HexStringToBytes("000102030405060708090A0B0C0D0E0F");
const blink::WebCryptoAlgorithm wrapping_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdAesKw);
// Import the wrapping key.
blink::WebCryptoKey wrapping_key = ImportSecretKeyFromRaw(
wrapping_key_data, wrapping_algorithm, blink::WebCryptoKeyUsageUnwrapKey);
// Unwrap the known wrapped key data to produce a new key
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(
Status::Success(),
UnwrapKey(blink::WebCryptoKeyFormatJwk,
CryptoData(wrapped_key_data),
wrapping_key,
wrapping_algorithm,
CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256),
true,
blink::WebCryptoKeyUsageVerify,
&unwrapped_key));
// Validate the new key's attributes.
EXPECT_FALSE(unwrapped_key.isNull());
EXPECT_TRUE(unwrapped_key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, unwrapped_key.type());
EXPECT_EQ(blink::WebCryptoAlgorithmIdHmac, unwrapped_key.algorithm().id());
EXPECT_EQ(blink::WebCryptoAlgorithmIdSha256,
unwrapped_key.algorithm().hmacParams()->hash().id());
EXPECT_EQ(256u, unwrapped_key.algorithm().hmacParams()->lengthBits());
EXPECT_EQ(true, unwrapped_key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageVerify, unwrapped_key.usages());
// Export the new key's raw data and compare to the known original.
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
EXPECT_BYTES_EQ(key_data, raw_key);
}
// TODO(eroman):
// * Test decryption when the tag length exceeds input size
// * Test decryption with empty input
// * Test decryption with tag length of 0.
TEST_F(SharedCryptoTest, MAYBE(AesGcmSampleSets)) {
// Some Linux test runners may not have a new enough version of NSS.
if (!SupportsAesGcm()) {
LOG(WARNING) << "AES GCM not supported, skipping tests";
return;
}
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 test_index = 0; test_index < tests->GetSize(); ++test_index) {
SCOPED_TRACE(test_index);
base::DictionaryValue* test;
ASSERT_TRUE(tests->GetDictionary(test_index, &test));
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,
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesGcm),
blink::WebCryptoKeyUsageEncrypt | blink::WebCryptoKeyUsageDecrypt);
// Verify exported raw key is identical to the imported data
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key, &raw_key));
EXPECT_BYTES_EQ(test_key, raw_key);
// Test encryption.
std::vector<uint8> cipher_text;
std::vector<uint8> authentication_tag;
EXPECT_EQ(Status::Success(),
AesGcmEncrypt(key,
test_iv,
test_additional_data,
test_tag_size_bits,
test_plain_text,
&cipher_text,
&authentication_tag));
EXPECT_BYTES_EQ(test_cipher_text, cipher_text);
EXPECT_BYTES_EQ(test_authentication_tag, authentication_tag);
// Test decryption.
std::vector<uint8> plain_text;
EXPECT_EQ(Status::Success(),
AesGcmDecrypt(key,
test_iv,
test_additional_data,
test_tag_size_bits,
test_cipher_text,
test_authentication_tag,
&plain_text));
EXPECT_BYTES_EQ(test_plain_text, plain_text);
// Decryption should fail if any of the inputs are tampered with.
EXPECT_EQ(Status::OperationError(),
AesGcmDecrypt(key,
Corrupted(test_iv),
test_additional_data,
test_tag_size_bits,
test_cipher_text,
test_authentication_tag,
&plain_text));
EXPECT_EQ(Status::OperationError(),
AesGcmDecrypt(key,
test_iv,
Corrupted(test_additional_data),
test_tag_size_bits,
test_cipher_text,
test_authentication_tag,
&plain_text));
EXPECT_EQ(Status::OperationError(),
AesGcmDecrypt(key,
test_iv,
test_additional_data,
test_tag_size_bits,
Corrupted(test_cipher_text),
test_authentication_tag,
&plain_text));
EXPECT_EQ(Status::OperationError(),
AesGcmDecrypt(key,
test_iv,
test_additional_data,
test_tag_size_bits,
test_cipher_text,
Corrupted(test_authentication_tag),
&plain_text));
// Try different incorrect tag lengths
uint8 kAlternateTagLengths[] = {0, 8, 96, 120, 128, 160, 255};
for (size_t tag_i = 0; tag_i < arraysize(kAlternateTagLengths); ++tag_i) {
unsigned int wrong_tag_size_bits = kAlternateTagLengths[tag_i];
if (test_tag_size_bits == wrong_tag_size_bits)
continue;
EXPECT_NE(Status::Success(),
AesGcmDecrypt(key,
test_iv,
test_additional_data,
wrong_tag_size_bits,
test_cipher_text,
test_authentication_tag,
&plain_text));
}
}
}
TEST_F(SharedCryptoTest, MAYBE(RsaEsRawSymkeyWrapUnwrapKnownAnswer)) {
scoped_ptr<base::Value> json;
ASSERT_TRUE(ReadJsonTestFile("rsa_es.json", &json));
base::DictionaryValue* test = NULL;
ASSERT_TRUE(json->GetAsDictionary(&test));
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");
blink::WebCryptoAlgorithm key_algorithm =
CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256);
// Import the RSA key pair.
blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(
rsa_spki_der,
rsa_pkcs8_der,
algorithm,
false,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
&public_key,
&private_key);
// Import the symmetric key.
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(cleartext),
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&key));
// Wrap the symmetric key with raw format.
std::vector<uint8> wrapped_key;
ASSERT_EQ(Status::Success(),
WrapKey(blink::WebCryptoKeyFormatRaw,
public_key,
key,
algorithm,
&wrapped_key));
// Unwrap the wrapped key.
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(wrapped_key),
private_key,
algorithm,
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&unwrapped_key));
EXPECT_FALSE(key.isNull());
EXPECT_TRUE(key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, key.type());
EXPECT_EQ(key_algorithm.id(), key.algorithm().id());
EXPECT_EQ(true, key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageSign, key.usages());
// Export the new key and compare its raw bytes with the original known data.
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
EXPECT_BYTES_EQ(cleartext, raw_key);
// Unwrap the known wrapped key and compare to the known cleartext.
ASSERT_EQ(Status::Success(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(ciphertext),
private_key,
algorithm,
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&unwrapped_key));
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
EXPECT_BYTES_EQ(cleartext, raw_key);
}
TEST_F(SharedCryptoTest, MAYBE(RsaEsRawSymkeyWrapUnwrapErrors)) {
const std::vector<uint8> data(64, 0);
blink::WebCryptoAlgorithm key_algorithm =
CreateHmacImportAlgorithm(blink::WebCryptoAlgorithmIdSha256);
// Import the RSA key pair.
blink::WebCryptoAlgorithm wrapping_algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKey public_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(
HexStringToBytes(kPublicKeySpkiDerHex),
HexStringToBytes(kPrivateKeyPkcs8DerHex),
wrapping_algorithm,
false,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
&public_key,
&private_key);
// Import the symmetric key.
blink::WebCryptoKey key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(data),
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&key));
// Wrapping with a private key should fail.
std::vector<uint8> wrapped_key;
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
WrapKey(blink::WebCryptoKeyFormatRaw,
private_key,
key,
wrapping_algorithm,
&wrapped_key));
// Wrapping a key whose raw keying material is too large for the wrapping key
// should fail.
// RSAES can encrypt data up to length of k - 11 bytes, where k is the octet
// length of the RSA modulus, and can decrypt data up to length k. Fabricate a
// big piece of data here that fails both of these criteria, so it can be used
// for both wrap and unwrap negative tests below.
const std::vector<uint8> big_data(kModulusLengthBits / 8 + 1, 0);
blink::WebCryptoKey big_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatRaw,
CryptoData(big_data),
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&big_key));
EXPECT_EQ(Status::ErrorDataTooLarge(),
WrapKey(blink::WebCryptoKeyFormatRaw,
public_key,
big_key,
wrapping_algorithm,
&wrapped_key));
// Unwrapping with a public key should fail.
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(Status::ErrorUnexpectedKeyType(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(data),
public_key,
wrapping_algorithm,
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&unwrapped_key));
// Unwrapping empty data should fail.
const std::vector<uint8> emtpy_data;
EXPECT_EQ(Status::ErrorDataTooSmall(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(emtpy_data),
private_key,
wrapping_algorithm,
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&unwrapped_key));
// Unwrapping data too large for the wrapping key should fail.
EXPECT_EQ(Status::ErrorDataTooLarge(),
UnwrapKey(blink::WebCryptoKeyFormatRaw,
CryptoData(big_data),
private_key,
wrapping_algorithm,
key_algorithm,
true,
blink::WebCryptoKeyUsageSign,
&unwrapped_key));
}
TEST_F(SharedCryptoTest, MAYBE(RsaEsJwkSymkeyUnwrapKnownAnswer)) {
// The following data lists a known 128-bit AES-CBC key, then a JWK
// representation of this key that was encrypted ("wrapped") using
// RSAES-PKCS1-v1_5 and kPublicKeySpkiDerHex as the wrapping key.
// For reference, the intermediate clear JWK is
// {"alg":"A128CBC","ext":true,"k":<b64url>,"key_ops":["encrypt"],"kty":"oct"}
const std::vector<uint8> key_data =
HexStringToBytes("8f56a26e7e8b77dca15ed54339724bf5");
const std::vector<uint8> wrapped_key_data = HexStringToBytes(
"9debcabd9c731d6a779622dbef38635419c409b3077af67b3cf0601b2da7054f2ec26156"
"06bb764e4986f45dd09ce660432a7abbac48b5249924f12dea52275b6d67d8b8a2f63525"
"fbbf67d61244c1afa9e30857b87b7a48cdc0b3196dc1477738cbf9e42ea65d5e0edc3b05"
"afafadc7d7400e26a51270d251040d51ce46cecc");
const blink::WebCryptoAlgorithm wrapping_algorithm =
webcrypto::CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
// Import the private wrapping key.
blink::WebCryptoKey private_wrapping_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
wrapping_algorithm,
false,
blink::WebCryptoKeyUsageDecrypt |
blink::WebCryptoKeyUsageUnwrapKey,
&private_wrapping_key));
// Unwrap the key.
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(Status::Success(),
UnwrapKey(blink::WebCryptoKeyFormatJwk,
CryptoData(wrapped_key_data),
private_wrapping_key,
wrapping_algorithm,
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
EXPECT_FALSE(unwrapped_key.isNull());
EXPECT_TRUE(unwrapped_key.handle());
EXPECT_EQ(blink::WebCryptoKeyTypeSecret, unwrapped_key.type());
EXPECT_EQ(blink::WebCryptoAlgorithmIdAesCbc, unwrapped_key.algorithm().id());
EXPECT_EQ(true, unwrapped_key.extractable());
EXPECT_EQ(blink::WebCryptoKeyUsageEncrypt, unwrapped_key.usages());
// Export the unwrapped key and compare to the original.
std::vector<uint8> raw_key;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key));
EXPECT_BYTES_EQ(key_data, raw_key);
}
TEST_F(SharedCryptoTest, MAYBE(RsaEsJwkSymkeyWrapUnwrapRoundTrip)) {
// Generate the symkey to be wrapped (256-bit AES-CBC key).
const blink::WebCryptoAlgorithm gen_algorithm =
CreateAesCbcKeyGenAlgorithm(256);
blink::WebCryptoKey key_to_wrap = blink::WebCryptoKey::createNull();
ASSERT_EQ(
Status::Success(),
GenerateSecretKey(
gen_algorithm, true, blink::WebCryptoKeyUsageEncrypt, &key_to_wrap));
// Import the wrapping key pair.
const blink::WebCryptoAlgorithm wrapping_algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKey public_wrapping_key = blink::WebCryptoKey::createNull();
blink::WebCryptoKey private_wrapping_key = blink::WebCryptoKey::createNull();
ImportRsaKeyPair(
HexStringToBytes(kPublicKeySpkiDerHex),
HexStringToBytes(kPrivateKeyPkcs8DerHex),
wrapping_algorithm,
false,
blink::WebCryptoKeyUsageWrapKey | blink::WebCryptoKeyUsageUnwrapKey,
&public_wrapping_key,
&private_wrapping_key);
// Wrap the symkey in JWK format, using the public wrapping key.
std::vector<uint8> wrapped_data;
ASSERT_EQ(Status::Success(),
WrapKey(blink::WebCryptoKeyFormatJwk,
public_wrapping_key,
key_to_wrap,
wrapping_algorithm,
&wrapped_data));
// Unwrap the key using the private wrapping key.
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
UnwrapKey(blink::WebCryptoKeyFormatJwk,
CryptoData(wrapped_data),
private_wrapping_key,
wrapping_algorithm,
CreateAlgorithm(blink::WebCryptoAlgorithmIdAesCbc),
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
// Export the original symkey and the unwrapped key and compare.
std::vector<uint8> raw_key1, raw_key2;
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, key_to_wrap, &raw_key1));
EXPECT_EQ(Status::Success(),
ExportKey(blink::WebCryptoKeyFormatRaw, unwrapped_key, &raw_key2));
EXPECT_BYTES_EQ(raw_key1, raw_key2);
}
TEST_F(SharedCryptoTest, MAYBE(RsaEsJwkSymkeyWrapUnwrapErrors)) {
// Unwrap JWK-formatted data that can be successfully decrypted, but contains
// an error in the plaintext JWK so it cannot be subsequently imported, and
// ensure that a generic error is returned instead of some other more specific
// error. This shows that information about the plaintext JWK inside the
// encrypted data is not leaked.
// Note that it is sufficient to consider just one JWK import failure mode
// here; others are validated in the ImportJwkFailures Test. The specific
// error in the cleartext data below is kty = "foo", which is an invalid kty
// value.
const std::string cleartext =
"{\"alg\":\"A128CBC\",\"ext\":true,\"k\":"
"\"j1aibn6Ld9yhXtVDOXJL9Q\",\"key_ops\":[\"encrypt\"],\"kty\":\"foo\"}";
// ciphertext is the cleartext above encrypted with kPublicKeySpkiDerHex, and
// can be decrypted with kPrivateKeyPkcs8DerHex
const std::vector<uint8> ciphertext = HexStringToBytes(
"93bc7bb2ca8502fcf3224e19b12ba455ac32d01695611022c76d3dbdd797c044de047d44"
"6c5ed5de5b8f79147ffe1df8da9c894b58881b238d39bd24cecd5c1a98a7c0b07354aee6"
"24791b2d549b7ecf1219c49513a1bcbb0fac5c6b59d350b564c44dc3678dadf84b4ea3d1"
"32e576e88f8d4a2d27c173e033a97bbda7e47bb9");
// Import the private decryption key.
const blink::WebCryptoAlgorithm algorithm =
CreateAlgorithm(blink::WebCryptoAlgorithmIdRsaEsPkcs1v1_5);
blink::WebCryptoKey private_decryption_key =
blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
algorithm,
false,
blink::WebCryptoKeyUsageDecrypt,
&private_decryption_key));
// Decrypt the ciphertext and validate the result, to prove that decryption is
// successful.
std::vector<uint8> decrypted_data;
ASSERT_EQ(Status::Success(),
Decrypt(algorithm,
private_decryption_key,
CryptoData(ciphertext),
&decrypted_data));
EXPECT_BYTES_EQ(cleartext, decrypted_data);
// Import the private wrapping key. Note this is the same underlying keying
// material used for private_decryption_key above. The only difference is that
// it has unwrap rather than decrypt usage.
blink::WebCryptoKey private_wrapping_key = blink::WebCryptoKey::createNull();
ASSERT_EQ(Status::Success(),
ImportKey(blink::WebCryptoKeyFormatPkcs8,
CryptoData(HexStringToBytes(kPrivateKeyPkcs8DerHex)),
algorithm,
false,
blink::WebCryptoKeyUsageUnwrapKey,
&private_wrapping_key));
// Treat the ciphertext as a wrapped key and try to unwrap it. Ensure a
// generic error is received.
blink::WebCryptoKey unwrapped_key = blink::WebCryptoKey::createNull();
EXPECT_EQ(Status::OperationError(),
UnwrapKey(blink::WebCryptoKeyFormatJwk,
CryptoData(ciphertext),
private_wrapping_key,
algorithm,
CreateAesCbcAlgorithm(std::vector<uint8>(0, 16)),
true,
blink::WebCryptoKeyUsageEncrypt,
&unwrapped_key));
}
} // namespace webcrypto
} // namespace content