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ssl_platform_key_nss_unittest.cc
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ssl_platform_key_nss_unittest.cc
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// Copyright 2016 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 "net/ssl/ssl_platform_key_nss.h"
#include <keyhi.h>
#include <pk11pub.h>
#include <stdint.h>
#include <string.h>
#include <memory>
#include <string>
#include <vector>
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/memory/ref_counted.h"
#include "crypto/ec_private_key.h"
#include "crypto/scoped_nss_types.h"
#include "crypto/scoped_test_nss_db.h"
#include "net/cert/x509_util_nss.h"
#include "net/ssl/ssl_private_key.h"
#include "net/ssl/ssl_private_key_test_util.h"
#include "net/test/cert_test_util.h"
#include "net/test/test_data_directory.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/boringssl/src/include/openssl/bytestring.h"
#include "third_party/boringssl/src/include/openssl/ec.h"
#include "third_party/boringssl/src/include/openssl/ec_key.h"
#include "third_party/boringssl/src/include/openssl/evp.h"
#include "third_party/boringssl/src/include/openssl/mem.h"
namespace net {
namespace {
struct TestKey {
const char* name;
const char* cert_file;
const char* key_file;
bool is_ecdsa;
};
const TestKey kTestKeys[] = {
{"RSA", "client_1.pem", "client_1.pk8", false},
{"ECDSA_P256", "client_4.pem", "client_4.pk8", true},
{"ECDSA_P384", "client_5.pem", "client_5.pk8", true},
{"ECDSA_P521", "client_6.pem", "client_6.pk8", true},
};
std::string TestKeyToString(const testing::TestParamInfo<TestKey>& params) {
return params.param.name;
}
} // namespace
class SSLPlatformKeyNSSTest : public testing::TestWithParam<TestKey> {};
TEST_P(SSLPlatformKeyNSSTest, KeyMatches) {
const TestKey& test_key = GetParam();
std::string pkcs8;
base::FilePath pkcs8_path =
GetTestCertsDirectory().AppendASCII(test_key.key_file);
ASSERT_TRUE(base::ReadFileToString(pkcs8_path, &pkcs8));
// Import the key into a test NSS database.
crypto::ScopedTestNSSDB test_db;
scoped_refptr<X509Certificate> cert;
ScopedCERTCertificate nss_cert;
if (test_key.is_ecdsa) {
// NSS cannot import unencrypted ECDSA keys, so we encrypt it with an empty
// password and import manually.
std::vector<uint8_t> pkcs8_vector(pkcs8.begin(), pkcs8.end());
std::unique_ptr<crypto::ECPrivateKey> ec_private_key =
crypto::ECPrivateKey::CreateFromPrivateKeyInfo(pkcs8_vector);
ASSERT_TRUE(ec_private_key);
std::vector<uint8_t> encrypted;
ASSERT_TRUE(ec_private_key->ExportEncryptedPrivateKey(&encrypted));
SECItem encrypted_item = {siBuffer, encrypted.data(),
static_cast<unsigned>(encrypted.size())};
SECKEYEncryptedPrivateKeyInfo epki;
memset(&epki, 0, sizeof(epki));
crypto::ScopedPLArenaPool arena(PORT_NewArena(DER_DEFAULT_CHUNKSIZE));
ASSERT_EQ(SECSuccess,
SEC_QuickDERDecodeItem(
arena.get(), &epki,
SEC_ASN1_GET(SECKEY_EncryptedPrivateKeyInfoTemplate),
&encrypted_item));
// NSS uses the serialized public key in X9.62 form as the "public value"
// for key ID purposes.
bssl::ScopedCBB cbb;
ASSERT_TRUE(CBB_init(cbb.get(), 0));
EC_KEY* ec_key = EVP_PKEY_get0_EC_KEY(ec_private_key->key());
ASSERT_TRUE(EC_POINT_point2cbb(cbb.get(), EC_KEY_get0_group(ec_key),
EC_KEY_get0_public_key(ec_key),
POINT_CONVERSION_UNCOMPRESSED, nullptr));
uint8_t* public_value;
size_t public_value_len;
ASSERT_TRUE(CBB_finish(cbb.get(), &public_value, &public_value_len));
bssl::UniquePtr<uint8_t> scoped_public_value(public_value);
SECItem public_item = {siBuffer, public_value,
static_cast<unsigned>(public_value_len)};
SECItem password_item = {siBuffer, nullptr, 0};
ASSERT_EQ(SECSuccess,
PK11_ImportEncryptedPrivateKeyInfo(
test_db.slot(), &epki, &password_item, nullptr /* nickname */,
&public_item, PR_TRUE /* permanent */, PR_TRUE /* private */,
ecKey, KU_DIGITAL_SIGNATURE, nullptr /* wincx */));
cert = ImportCertFromFile(GetTestCertsDirectory(), test_key.cert_file);
ASSERT_TRUE(cert);
nss_cert = ImportClientCertToSlot(cert, test_db.slot());
ASSERT_TRUE(nss_cert);
} else {
cert = ImportClientCertAndKeyFromFile(GetTestCertsDirectory(),
test_key.cert_file, test_key.key_file,
test_db.slot(), &nss_cert);
ASSERT_TRUE(cert);
ASSERT_TRUE(nss_cert);
}
// Look up the key.
scoped_refptr<SSLPrivateKey> key =
FetchClientCertPrivateKey(cert.get(), nss_cert.get(), nullptr);
ASSERT_TRUE(key);
// All NSS keys are expected to have the same hash preferences.
std::vector<SSLPrivateKey::Hash> expected_hashes = {
SSLPrivateKey::Hash::SHA512, SSLPrivateKey::Hash::SHA384,
SSLPrivateKey::Hash::SHA256, SSLPrivateKey::Hash::SHA1,
};
EXPECT_EQ(expected_hashes, key->GetDigestPreferences());
TestSSLPrivateKeyMatches(key.get(), pkcs8);
}
INSTANTIATE_TEST_CASE_P(,
SSLPlatformKeyNSSTest,
testing::ValuesIn(kTestKeys),
TestKeyToString);
} // namespace net