chrome/updater/device_management/dm_policy_builder_for_testing.cc - chromium/src - Git at Google

 // Copyright 2020 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 "chrome/updater/device_management/dm_policy_builder_for_testing.h"

 #include <stdint.h>
 #include <utility>

 #include "base/strings/string_util.h"
 #include "chrome/updater/device_management/dm_cached_policy_info.h"
 #include "chrome/updater/protos/omaha_settings.pb.h"
 #include "chrome/updater/unittest_util.h"
 #include "components/policy/proto/device_management_backend.pb.h"
 #include "crypto/rsa_private_key.h"
 #include "crypto/signature_creator.h"

 namespace updater {

 namespace {

 // A test signing key raw bytes in DER-encoded PKCS8 format.
 const uint8_t kSigningKey1[] = {
     0x30, 0x82, 0x01, 0x55, 0x02, 0x01, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a,
     0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
     0x01, 0x3f, 0x30, 0x82, 0x01, 0x3b, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00,
     0xd9, 0xcd, 0xca, 0xcd, 0xc3, 0xea, 0xbe, 0x72, 0x79, 0x1c, 0x29, 0x37,
     0x39, 0x99, 0x1f, 0xd4, 0xb3, 0x0e, 0xf0, 0x7b, 0x78, 0x77, 0x0e, 0x05,
     0x3b, 0x65, 0x34, 0x12, 0x62, 0xaf, 0xa6, 0x8d, 0x33, 0xce, 0x78, 0xf8,
     0x47, 0x05, 0x1d, 0x98, 0xaa, 0x1b, 0x1f, 0x50, 0x05, 0x5b, 0x3c, 0x19,
     0x3f, 0x80, 0x83, 0x63, 0x63, 0x3a, 0xec, 0xcb, 0x2e, 0x90, 0x4f, 0xf5,
     0x26, 0x76, 0xf1, 0xd5, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x40, 0x64,
     0x29, 0xc2, 0xd9, 0x6b, 0xfe, 0xf9, 0x84, 0x75, 0x73, 0xe0, 0xf4, 0x77,
     0xb5, 0x96, 0xb0, 0xdf, 0x83, 0xc0, 0x4e, 0x57, 0xf1, 0x10, 0x6e, 0x91,
     0x89, 0x12, 0x30, 0x5e, 0x57, 0xff, 0x14, 0x59, 0x5f, 0x18, 0x86, 0x4e,
     0x4b, 0x17, 0x56, 0xfc, 0x8d, 0x40, 0xdd, 0x74, 0x65, 0xd3, 0xff, 0x67,
     0x64, 0xcb, 0x9c, 0xb4, 0x14, 0x8a, 0x06, 0xb7, 0x13, 0x45, 0x94, 0x16,
     0x7d, 0x3f, 0xe1, 0x02, 0x21, 0x00, 0xf6, 0x0f, 0x31, 0x6d, 0x06, 0xcc,
     0x3b, 0xa0, 0x44, 0x1f, 0xf5, 0xc2, 0x45, 0x2b, 0x10, 0x6c, 0xf9, 0x6f,
     0x8f, 0x87, 0x3d, 0xc0, 0x3b, 0x55, 0x13, 0x37, 0x80, 0xcd, 0x9f, 0xe1,
     0xb7, 0xd9, 0x02, 0x21, 0x00, 0xe2, 0x9a, 0x5f, 0xbf, 0x95, 0x74, 0xb5,
     0x7a, 0x6a, 0xa6, 0x97, 0xbd, 0x75, 0x8c, 0x97, 0x18, 0x24, 0xd6, 0x09,
     0xcd, 0xdc, 0xb5, 0x94, 0xbf, 0xe2, 0x78, 0xaa, 0x20, 0x47, 0x9f, 0x68,
     0x5d, 0x02, 0x21, 0x00, 0xaf, 0x8f, 0x97, 0x8c, 0x5a, 0xd5, 0x4d, 0x95,
     0xc4, 0x05, 0xa9, 0xab, 0xba, 0xfe, 0x46, 0xf1, 0xf9, 0xe7, 0x07, 0x59,
     0x4f, 0x4d, 0xe1, 0x07, 0x8a, 0x76, 0x87, 0x88, 0x2f, 0x13, 0x35, 0xc1,
     0x02, 0x20, 0x24, 0xc3, 0xd9, 0x2f, 0x13, 0x47, 0x99, 0x3e, 0x20, 0x59,
     0xa1, 0x1a, 0xeb, 0x1c, 0x81, 0x53, 0x38, 0x7e, 0xc5, 0x9e, 0x71, 0xe5,
     0xc0, 0x19, 0x95, 0xdb, 0xef, 0xf6, 0x46, 0xc8, 0x95, 0x3d, 0x02, 0x21,
     0x00, 0xaa, 0xb1, 0xff, 0x8a, 0xa2, 0xb2, 0x2b, 0xef, 0x9a, 0x83, 0x3f,
     0xc5, 0xbc, 0xd4, 0x6a, 0x07, 0xe8, 0xc7, 0x0b, 0x2e, 0xd4, 0x0f, 0xf8,
     0x98, 0x68, 0xe1, 0x04, 0xa8, 0x92, 0xd0, 0x10, 0xaa,
 };

 // SHA256 signature of kSigningKey for "example.com" domain.
 const uint8_t kSigningKey1Signature[] = {
     0x97, 0xEB, 0x13, 0xE6, 0x6C, 0xE2, 0x7A, 0x2F, 0xC6, 0x6E, 0x68, 0x8F,
     0xED, 0x5B, 0x51, 0x08, 0x27, 0xF0, 0xA5, 0x97, 0x20, 0xEE, 0xE2, 0x9B,
     0x5B, 0x63, 0xA5, 0x9C, 0xAE, 0x41, 0xFD, 0x34, 0xC4, 0x2E, 0xEB, 0x63,
     0x10, 0x80, 0x0C, 0x74, 0x77, 0x6E, 0x34, 0x1C, 0x1B, 0x3B, 0x8E, 0x2A,
     0x3A, 0x7F, 0xF9, 0x73, 0xB6, 0x2B, 0xB6, 0x45, 0xDB, 0x05, 0xE8, 0x5A,
     0x68, 0x36, 0x05, 0x3C, 0x62, 0x3A, 0x6C, 0x64, 0xDB, 0x0E, 0x61, 0xBD,
     0x29, 0x1C, 0x61, 0x4B, 0xE0, 0xDA, 0x07, 0xBA, 0x29, 0x81, 0xF0, 0x90,
     0x58, 0xB8, 0xBB, 0xF4, 0x69, 0xFF, 0x8F, 0x2B, 0x4A, 0x2D, 0x98, 0x51,
     0x37, 0xF5, 0x52, 0xCB, 0xE3, 0xC4, 0x6D, 0xEC, 0xEA, 0x32, 0x2D, 0xDD,
     0xD7, 0xFC, 0x43, 0xC6, 0x54, 0xE1, 0xC1, 0x66, 0x43, 0x37, 0x09, 0xE1,
     0xBF, 0xD1, 0x11, 0xFC, 0xDB, 0xBF, 0xDF, 0x66, 0x53, 0x8F, 0x38, 0x2D,
     0xAA, 0x89, 0xD2, 0x9F, 0x60, 0x90, 0xB7, 0x05, 0xC2, 0x20, 0x82, 0xE6,
     0xE0, 0x57, 0x55, 0xFF, 0x5F, 0xC1, 0x76, 0x66, 0x46, 0xF8, 0x67, 0xB8,
     0x8B, 0x81, 0x53, 0xA9, 0x8B, 0x48, 0x9E, 0x2A, 0xF9, 0x60, 0x57, 0xBA,
     0xD7, 0x52, 0x97, 0x53, 0xF0, 0x2F, 0x78, 0x68, 0x50, 0x18, 0x12, 0x00,
     0x5E, 0x8E, 0x2A, 0x62, 0x0D, 0x48, 0xA9, 0xB5, 0x6B, 0xBC, 0xA0, 0x52,
     0x53, 0xD7, 0x65, 0x23, 0xA4, 0xA5, 0xF5, 0x32, 0x49, 0x2D, 0xB2, 0x77,
     0x2C, 0x66, 0x97, 0xBA, 0x58, 0xE0, 0x16, 0x1C, 0x8C, 0x02, 0x5D, 0xE0,
     0x73, 0x2E, 0xDF, 0xB4, 0x2F, 0x4C, 0xA2, 0x11, 0x26, 0xC1, 0xAF, 0xAC,
     0x73, 0xBC, 0xB6, 0x98, 0xE0, 0x20, 0x61, 0x0E, 0x52, 0x4A, 0x6C, 0x80,
     0xB5, 0x0C, 0x10, 0x80, 0x09, 0x17, 0xF4, 0x9D, 0xFE, 0xB5, 0xFC, 0x63,
     0x9A, 0x80, 0x3F, 0x76,
 };

 // Another (new) test signing key raw bytes in DER-encoded PKCS8 format.
 const uint8_t kSigningKey2[] = {
     0x30, 0x82, 0x01, 0x54, 0x02, 0x01, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a,
     0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
     0x01, 0x3e, 0x30, 0x82, 0x01, 0x3a, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00,
     0x99, 0x98, 0x6b, 0x79, 0x5d, 0x38, 0x33, 0x79, 0x27, 0x0a, 0x2e, 0xb0,
     0x89, 0xba, 0xf8, 0xf6, 0x80, 0xde, 0xb0, 0x79, 0xf2, 0xd4, 0x6d, 0xf7,
     0x3c, 0xa3, 0x97, 0xf6, 0x4a, 0x3c, 0xa5, 0xcc, 0x40, 0x8a, 0xef, 0x59,
     0xaa, 0xc2, 0x82, 0x8f, 0xbc, 0x0d, 0x5b, 0x63, 0xc6, 0xaa, 0x72, 0xe2,
     0xf3, 0x57, 0xdd, 0x74, 0x00, 0xb0, 0x42, 0xd6, 0x27, 0xe7, 0x17, 0x61,
     0x0a, 0xdc, 0xc1, 0xf7, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x40, 0x34,
     0xcf, 0xc9, 0xb4, 0x73, 0x2f, 0x0d, 0xd3, 0xcc, 0x6e, 0x9d, 0xdb, 0x29,
     0xa0, 0x56, 0x56, 0x3b, 0xbd, 0x56, 0x24, 0xb8, 0x2f, 0xfe, 0x97, 0x92,
     0x0c, 0x16, 0x06, 0x23, 0x44, 0x73, 0x25, 0x1d, 0x65, 0xf4, 0xda, 0x77,
     0xe7, 0x91, 0x2e, 0x91, 0x05, 0x10, 0xc1, 0x1b, 0x39, 0x5e, 0xb2, 0xf7,
     0xbd, 0x14, 0x19, 0xcb, 0x6b, 0xc3, 0xa9, 0xe8, 0x91, 0xf7, 0xa7, 0xa9,
     0x90, 0x08, 0x51, 0x02, 0x21, 0x00, 0xcc, 0x9e, 0x03, 0x54, 0x8f, 0x24,
     0xde, 0x90, 0x25, 0xec, 0x21, 0xaf, 0xe6, 0x27, 0x2a, 0x16, 0x42, 0x74,
     0xda, 0xf8, 0x84, 0xc4, 0x8c, 0x1e, 0x86, 0x12, 0x04, 0x5c, 0x17, 0x01,
     0xea, 0x9d, 0x02, 0x21, 0x00, 0xc0, 0x2a, 0x6c, 0xe9, 0xa1, 0x1a, 0x41,
     0x11, 0x94, 0x50, 0xf7, 0x1a, 0xd3, 0xbc, 0xf3, 0xa2, 0xf8, 0x46, 0xbc,
     0x26, 0x77, 0x78, 0xef, 0xc0, 0x54, 0xec, 0x22, 0x3f, 0x2c, 0x57, 0xe0,
     0xa3, 0x02, 0x20, 0x31, 0xf2, 0xc8, 0xa1, 0x55, 0xa8, 0x0c, 0x64, 0x67,
     0xbd, 0x72, 0xa3, 0xbb, 0xad, 0x07, 0xcb, 0x13, 0x41, 0xef, 0x4a, 0x07,
     0x2e, 0xeb, 0x7d, 0x70, 0x00, 0xe9, 0xeb, 0x88, 0xfa, 0x40, 0xc9, 0x02,
     0x20, 0x3a, 0xe0, 0xc4, 0xde, 0x10, 0x6e, 0x6a, 0xe1, 0x68, 0x00, 0x26,
     0xb6, 0x21, 0x8a, 0x13, 0x5c, 0x2b, 0x96, 0x00, 0xb0, 0x08, 0x8b, 0x15,
     0x6a, 0x68, 0x9a, 0xb1, 0x23, 0x8a, 0x02, 0xa2, 0xe1, 0x02, 0x21, 0x00,
     0xa3, 0xf2, 0x2d, 0x55, 0xc1, 0x6d, 0x40, 0xfa, 0x1d, 0xf7, 0xba, 0x86,
     0xef, 0x50, 0x98, 0xfc, 0xee, 0x09, 0xcc, 0xe7, 0x22, 0xb9, 0x4e, 0x80,
     0x32, 0x1a, 0x6b, 0xb3, 0x5f, 0x35, 0xbd, 0xf3,
 };

 // SHA256 signature of kSigningKey2 for "example.com" domain.
 const uint8_t kSigningKey2Signature[] = {
     0x70, 0xED, 0x27, 0x42, 0x34, 0x69, 0xB6, 0x47, 0x9E, 0x7C, 0xA0, 0xF0,
     0xE5, 0x0A, 0x49, 0x49, 0x00, 0xDA, 0xBC, 0x70, 0x01, 0xC5, 0x4B, 0xDB,
     0x47, 0xD5, 0xAF, 0xA1, 0xAD, 0xB7, 0xE4, 0xE1, 0xBD, 0x5A, 0x1C, 0x35,
     0x44, 0x5A, 0xAA, 0xDB, 0x27, 0xBA, 0xA4, 0xA9, 0xC8, 0xDD, 0xEC, 0xD6,
     0xEB, 0xFE, 0xDB, 0xE0, 0x03, 0x5C, 0xA6, 0x2E, 0x5A, 0xEC, 0x75, 0x79,
     0xB8, 0x5F, 0x0A, 0xEE, 0x05, 0xB2, 0x61, 0xDC, 0x58, 0xF0, 0xD1, 0xCB,
     0x7B, 0x2A, 0xDB, 0xC1, 0x7C, 0x60, 0xE6, 0x3E, 0x87, 0x02, 0x61, 0xE6,
     0x90, 0xFD, 0x54, 0x65, 0xC7, 0xFF, 0x74, 0x09, 0xD6, 0xAA, 0x8E, 0xDC,
     0x5B, 0xC8, 0x38, 0x0C, 0x84, 0x0E, 0x84, 0x2E, 0x37, 0x2A, 0x4B, 0xDE,
     0x31, 0x82, 0x76, 0x1E, 0x77, 0xA5, 0xC1, 0xD5, 0xED, 0xFF, 0xBC, 0xEA,
     0x91, 0xB7, 0xBC, 0xFF, 0x76, 0x23, 0xE2, 0x78, 0x63, 0x01, 0x47, 0x80,
     0x47, 0x1F, 0x3A, 0x49, 0xBF, 0x0D, 0xCF, 0x27, 0x70, 0x92, 0xBB, 0xEA,
     0xB3, 0x92, 0x70, 0xFF, 0x1E, 0x4B, 0x1B, 0xE0, 0x4E, 0x0C, 0x4C, 0x6B,
     0x5D, 0x77, 0x06, 0xBB, 0xFB, 0x9B, 0x0E, 0x55, 0xB8, 0x8A, 0xF2, 0x45,
     0xA9, 0xF3, 0x54, 0x3D, 0x0C, 0xAC, 0xA8, 0x15, 0xD2, 0x31, 0x8D, 0x97,
     0x08, 0x73, 0xC9, 0x0F, 0x1D, 0xDE, 0x10, 0x22, 0xC6, 0x55, 0x53, 0x7F,
     0x7C, 0x50, 0x16, 0x5A, 0x08, 0xCC, 0x1C, 0x53, 0x9B, 0x02, 0xB8, 0x80,
     0xB7, 0x46, 0xF5, 0xF1, 0xC7, 0x3D, 0x36, 0xBD, 0x26, 0x02, 0xDE, 0x10,
     0xAB, 0x5A, 0x03, 0xCD, 0x67, 0x00, 0x1C, 0x23, 0xC7, 0x13, 0xEE, 0x5D,
     0xAF, 0xC5, 0x1F, 0xE3, 0xA0, 0x54, 0xAC, 0xC2, 0xC9, 0x44, 0xD4, 0x4A,
     0x09, 0x8E, 0xEB, 0xAE, 0xCA, 0x08, 0x8A, 0x7F, 0x41, 0x7B, 0xD8, 0x2C,
     0xDD, 0x6F, 0x80, 0xC3,
 };

 }  // namespace

 std::unique_ptr<DMSigningKeyForTesting> GetTestKey1() {
   constexpr int kFakeKeyVersion = 5;
   return std::make_unique<DMSigningKeyForTesting>(
       kSigningKey1, sizeof(kSigningKey1), kSigningKey1Signature,
       sizeof(kSigningKey1Signature), kFakeKeyVersion, "example.com");
 }

 std::unique_ptr<DMSigningKeyForTesting> GetTestKey2() {
   constexpr int kFakeKeyVersion = 7;
   return std::make_unique<DMSigningKeyForTesting>(
       kSigningKey2, sizeof(kSigningKey2), kSigningKey2Signature,
       sizeof(kSigningKey2Signature), kFakeKeyVersion, "example.com");
 }

 std::unique_ptr<
     ::wireless_android_enterprise_devicemanagement::OmahaSettingsClientProto>
 GetDefaultTestingOmahaPolicyProto() {
   auto omaha_settings =
       std::make_unique<::wireless_android_enterprise_devicemanagement::
                            OmahaSettingsClientProto>();

   omaha_settings->set_auto_update_check_period_minutes(111);
   omaha_settings->mutable_updates_suppressed()->set_start_hour(9);
   omaha_settings->mutable_updates_suppressed()->set_start_minute(30);
   omaha_settings->mutable_updates_suppressed()->set_duration_min(120);
   omaha_settings->set_download_preference("test_download_preference");
   omaha_settings->set_proxy_mode("test_proxy_mode");
   omaha_settings->set_proxy_pac_url("foo.c/proxy.pa");
   omaha_settings->set_install_default(
       ::wireless_android_enterprise_devicemanagement::INSTALL_ENABLED);
   omaha_settings->set_update_default(
       ::wireless_android_enterprise_devicemanagement::MANUAL_UPDATES_ONLY);

   ::wireless_android_enterprise_devicemanagement::ApplicationSettings app;
   app.set_app_guid(kChromeAppId);
   app.set_install(
       ::wireless_android_enterprise_devicemanagement::INSTALL_DISABLED);
   app.set_update(
       ::wireless_android_enterprise_devicemanagement::AUTOMATIC_UPDATES_ONLY);
   app.set_target_version_prefix("81.");
   app.set_rollback_to_target_version(
       ::wireless_android_enterprise_devicemanagement::
           ROLLBACK_TO_TARGET_VERSION_ENABLED);
   omaha_settings->mutable_application_settings()->Add(std::move(app));

   return omaha_settings;
 }

 std::unique_ptr<::enterprise_management::DeviceManagementResponse>
 GetDefaultTestingPolicyFetchDMResponse(
     bool first_request,
     bool rotate_to_new_key,
     DMPolicyBuilderForTesting::SigningOption signing_option) {
   std::unique_ptr<DMPolicyBuilderForTesting> policy_builder =
       DMPolicyBuilderForTesting::CreateInstanceWithOptions(
           first_request, rotate_to_new_key, signing_option);
   DMPolicyMap policy_map;
   policy_map.emplace("google/machine-level-omaha",
                      GetDefaultTestingOmahaPolicyProto()->SerializeAsString());
   return policy_builder->BuildDMResponseForPolicies(policy_map);
 }

 DMSigningKeyForTesting::DMSigningKeyForTesting(const uint8_t key_data[],
                                                size_t key_data_length,
                                                const uint8_t key_signature[],
                                                size_t key_signature_length,
                                                int key_version,
                                                const std::string& domain)
     : key_data_(key_data, key_data + key_data_length),
       key_signature_(reinterpret_cast<const char*>(key_signature),
                      key_signature_length),
       key_version_(key_version),
       key_signature_domain_(domain) {}

 DMSigningKeyForTesting::~DMSigningKeyForTesting() = default;

 std::string DMSigningKeyForTesting::GetPublicKeyString() const {
   std::vector<uint8_t> public_key;
   std::unique_ptr<crypto::RSAPrivateKey> private_key =
       crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_data_);
   private_key->ExportPublicKey(&public_key);
   return std::string(reinterpret_cast<const char*>(public_key.data()),
                      public_key.size());
 }

 void DMSigningKeyForTesting::SignData(const std::string& data,
                                       std::string* signature) const {
   std::unique_ptr<crypto::RSAPrivateKey> private_key =
       crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_data_);
   std::unique_ptr<crypto::SignatureCreator> signature_creator(
       crypto::SignatureCreator::Create(private_key.get(),
                                        crypto::SignatureCreator::SHA256));
   signature_creator->Update(reinterpret_cast<const uint8_t*>(data.c_str()),
                             data.size());
   std::vector<uint8_t> signature_bytes;
   signature_creator->Final(&signature_bytes);

   signature->assign(reinterpret_cast<const char*>(signature_bytes.data()),
                     signature_bytes.size());
 }

 DMPolicyBuilderForTesting::DMPolicyBuilderForTesting(
     const std::string& dm_token,
     const std::string& user_name,
     const std::string& device_id,
     std::unique_ptr<DMSigningKeyForTesting> signing_key,
     std::unique_ptr<DMSigningKeyForTesting> new_signing_key,
     SigningOption signing_option)
     : dm_token_(dm_token),
       user_name_(user_name),
       device_id_(device_id),
       signing_option_(signing_option),
       signing_key_(std::move(signing_key)),
       new_signing_key_(std::move(new_signing_key)) {}

 DMPolicyBuilderForTesting::~DMPolicyBuilderForTesting() = default;

 // static
 std::unique_ptr<DMPolicyBuilderForTesting>
 DMPolicyBuilderForTesting::CreateInstanceWithOptions(
     bool first_request,
     bool rotate_to_new_key,
     SigningOption signing_option) {
   std::unique_ptr<DMSigningKeyForTesting> signing_key;
   std::unique_ptr<DMSigningKeyForTesting> new_signing_key;

   if (first_request) {
     new_signing_key = GetTestKey1();
   } else {
     signing_key = GetTestKey1();
     if (rotate_to_new_key) {
       new_signing_key = GetTestKey2();
     }
   }

   return std::make_unique<DMPolicyBuilderForTesting>(
       "test-dm-token", "username@example.com", "test-device-id",
       std::move(signing_key), std::move(new_signing_key), signing_option);
 }

 void DMPolicyBuilderForTesting::FillPolicyFetchResponseWithPayload(
     enterprise_management::PolicyFetchResponse* policy_response,
     const std::string& policy_type,
     const std::string& policy_payload) const {
   const DMSigningKeyForTesting* signing_key = signing_key_.get();
   if (new_signing_key_) {
     signing_key = new_signing_key_.get();

     // Attach the new public key and its signature to the policy response.
     std::string new_public_key_string = new_signing_key_->GetPublicKeyString();
     policy_response->set_new_public_key(new_public_key_string);
     policy_response->set_new_public_key_verification_signature_deprecated(
         new_signing_key_->GetPublicKeySignature());
     if (signing_key_) {
       if (signing_option_ == SigningOption::kTamperKeySignature) {
         *policy_response->mutable_new_public_key_signature() = "bad-key-sig";
       } else {
         signing_key_->SignData(
             policy_response->new_public_key(),
             policy_response->mutable_new_public_key_signature());
       }
     }

     // Attach the new public key verification data to policy response.
     enterprise_management::PublicKeyVerificationData key_verif_data;
     key_verif_data.set_new_public_key(new_public_key_string);
     key_verif_data.set_domain(new_signing_key_->GetPublicKeySignatureDomain());

     policy_response->set_new_public_key_verification_data(
         key_verif_data.SerializeAsString());
     policy_response->set_new_public_key_verification_data_signature(
         new_signing_key_->GetPublicKeySignature());
   } else {
     policy_response->clear_new_public_key();
     policy_response->clear_new_public_key_verification_data();
     policy_response->clear_new_public_key_verification_data_signature();
     policy_response->clear_new_public_key_verification_signature_deprecated();
   }

   enterprise_management::PolicyData policy_data;
   policy_data.set_policy_type(policy_type);
   policy_data.set_timestamp(time(nullptr));
   policy_data.set_request_token(dm_token_);
   if (signing_key->has_key_version()) {
     policy_data.set_public_key_version(signing_key->key_version());
   }
   policy_data.set_username(user_name_);
   policy_data.set_device_id(device_id_);
   policy_data.set_policy_value(policy_payload);
   policy_data.SerializeToString(policy_response->mutable_policy_data());

   // PolicyData signature.
   if (signing_option_ == SigningOption::kTamperDataSignature) {
     *policy_response->mutable_policy_data_signature() = "bad-data-sig";
   } else {
     signing_key->SignData(policy_response->policy_data(),
                           policy_response->mutable_policy_data_signature());
   }
 }

 std::string DMPolicyBuilderForTesting::GetResponseBlobForPolicyPayload(
     const std::string& policy_type,
     const std::string& policy_payload) const {
   enterprise_management::PolicyFetchResponse policy_response;
   FillPolicyFetchResponseWithPayload(&policy_response, policy_type,
                                      policy_payload);
   return policy_response.SerializeAsString();
 }

 std::unique_ptr<::enterprise_management::DeviceManagementResponse>
 DMPolicyBuilderForTesting::BuildDMResponseForPolicies(
     const base::flat_map<std::string, std::string>& policies) const {
   auto dm_response =
       std::make_unique<::enterprise_management::DeviceManagementResponse>();

   for (const auto& policy : policies) {
     FillPolicyFetchResponseWithPayload(
         dm_response->mutable_policy_response()->add_responses(), policy.first,
         policy.second);
   }
   return dm_response;
 }

 }  // namespace updater
	// Copyright 2020 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 "chrome/updater/device_management/dm_policy_builder_for_testing.h"

	#include <stdint.h>
	#include <utility>

	#include "base/strings/string_util.h"
	#include "chrome/updater/device_management/dm_cached_policy_info.h"
	#include "chrome/updater/protos/omaha_settings.pb.h"
	#include "chrome/updater/unittest_util.h"
	#include "components/policy/proto/device_management_backend.pb.h"
	#include "crypto/rsa_private_key.h"
	#include "crypto/signature_creator.h"

	namespace updater {

	namespace {

	// A test signing key raw bytes in DER-encoded PKCS8 format.
	const uint8_t kSigningKey1[] = {
	0x30, 0x82, 0x01, 0x55, 0x02, 0x01, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a,
	0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
	0x01, 0x3f, 0x30, 0x82, 0x01, 0x3b, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00,
	0xd9, 0xcd, 0xca, 0xcd, 0xc3, 0xea, 0xbe, 0x72, 0x79, 0x1c, 0x29, 0x37,
	0x39, 0x99, 0x1f, 0xd4, 0xb3, 0x0e, 0xf0, 0x7b, 0x78, 0x77, 0x0e, 0x05,
	0x3b, 0x65, 0x34, 0x12, 0x62, 0xaf, 0xa6, 0x8d, 0x33, 0xce, 0x78, 0xf8,
	0x47, 0x05, 0x1d, 0x98, 0xaa, 0x1b, 0x1f, 0x50, 0x05, 0x5b, 0x3c, 0x19,
	0x3f, 0x80, 0x83, 0x63, 0x63, 0x3a, 0xec, 0xcb, 0x2e, 0x90, 0x4f, 0xf5,
	0x26, 0x76, 0xf1, 0xd5, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x40, 0x64,
	0x29, 0xc2, 0xd9, 0x6b, 0xfe, 0xf9, 0x84, 0x75, 0x73, 0xe0, 0xf4, 0x77,
	0xb5, 0x96, 0xb0, 0xdf, 0x83, 0xc0, 0x4e, 0x57, 0xf1, 0x10, 0x6e, 0x91,
	0x89, 0x12, 0x30, 0x5e, 0x57, 0xff, 0x14, 0x59, 0x5f, 0x18, 0x86, 0x4e,
	0x4b, 0x17, 0x56, 0xfc, 0x8d, 0x40, 0xdd, 0x74, 0x65, 0xd3, 0xff, 0x67,
	0x64, 0xcb, 0x9c, 0xb4, 0x14, 0x8a, 0x06, 0xb7, 0x13, 0x45, 0x94, 0x16,
	0x7d, 0x3f, 0xe1, 0x02, 0x21, 0x00, 0xf6, 0x0f, 0x31, 0x6d, 0x06, 0xcc,
	0x3b, 0xa0, 0x44, 0x1f, 0xf5, 0xc2, 0x45, 0x2b, 0x10, 0x6c, 0xf9, 0x6f,
	0x8f, 0x87, 0x3d, 0xc0, 0x3b, 0x55, 0x13, 0x37, 0x80, 0xcd, 0x9f, 0xe1,
	0xb7, 0xd9, 0x02, 0x21, 0x00, 0xe2, 0x9a, 0x5f, 0xbf, 0x95, 0x74, 0xb5,
	0x7a, 0x6a, 0xa6, 0x97, 0xbd, 0x75, 0x8c, 0x97, 0x18, 0x24, 0xd6, 0x09,
	0xcd, 0xdc, 0xb5, 0x94, 0xbf, 0xe2, 0x78, 0xaa, 0x20, 0x47, 0x9f, 0x68,
	0x5d, 0x02, 0x21, 0x00, 0xaf, 0x8f, 0x97, 0x8c, 0x5a, 0xd5, 0x4d, 0x95,
	0xc4, 0x05, 0xa9, 0xab, 0xba, 0xfe, 0x46, 0xf1, 0xf9, 0xe7, 0x07, 0x59,
	0x4f, 0x4d, 0xe1, 0x07, 0x8a, 0x76, 0x87, 0x88, 0x2f, 0x13, 0x35, 0xc1,
	0x02, 0x20, 0x24, 0xc3, 0xd9, 0x2f, 0x13, 0x47, 0x99, 0x3e, 0x20, 0x59,
	0xa1, 0x1a, 0xeb, 0x1c, 0x81, 0x53, 0x38, 0x7e, 0xc5, 0x9e, 0x71, 0xe5,
	0xc0, 0x19, 0x95, 0xdb, 0xef, 0xf6, 0x46, 0xc8, 0x95, 0x3d, 0x02, 0x21,
	0x00, 0xaa, 0xb1, 0xff, 0x8a, 0xa2, 0xb2, 0x2b, 0xef, 0x9a, 0x83, 0x3f,
	0xc5, 0xbc, 0xd4, 0x6a, 0x07, 0xe8, 0xc7, 0x0b, 0x2e, 0xd4, 0x0f, 0xf8,
	0x98, 0x68, 0xe1, 0x04, 0xa8, 0x92, 0xd0, 0x10, 0xaa,
	};

	// SHA256 signature of kSigningKey for "example.com" domain.
	const uint8_t kSigningKey1Signature[] = {
	0x97, 0xEB, 0x13, 0xE6, 0x6C, 0xE2, 0x7A, 0x2F, 0xC6, 0x6E, 0x68, 0x8F,
	0xED, 0x5B, 0x51, 0x08, 0x27, 0xF0, 0xA5, 0x97, 0x20, 0xEE, 0xE2, 0x9B,
	0x5B, 0x63, 0xA5, 0x9C, 0xAE, 0x41, 0xFD, 0x34, 0xC4, 0x2E, 0xEB, 0x63,
	0x10, 0x80, 0x0C, 0x74, 0x77, 0x6E, 0x34, 0x1C, 0x1B, 0x3B, 0x8E, 0x2A,
	0x3A, 0x7F, 0xF9, 0x73, 0xB6, 0x2B, 0xB6, 0x45, 0xDB, 0x05, 0xE8, 0x5A,
	0x68, 0x36, 0x05, 0x3C, 0x62, 0x3A, 0x6C, 0x64, 0xDB, 0x0E, 0x61, 0xBD,
	0x29, 0x1C, 0x61, 0x4B, 0xE0, 0xDA, 0x07, 0xBA, 0x29, 0x81, 0xF0, 0x90,
	0x58, 0xB8, 0xBB, 0xF4, 0x69, 0xFF, 0x8F, 0x2B, 0x4A, 0x2D, 0x98, 0x51,
	0x37, 0xF5, 0x52, 0xCB, 0xE3, 0xC4, 0x6D, 0xEC, 0xEA, 0x32, 0x2D, 0xDD,
	0xD7, 0xFC, 0x43, 0xC6, 0x54, 0xE1, 0xC1, 0x66, 0x43, 0x37, 0x09, 0xE1,
	0xBF, 0xD1, 0x11, 0xFC, 0xDB, 0xBF, 0xDF, 0x66, 0x53, 0x8F, 0x38, 0x2D,
	0xAA, 0x89, 0xD2, 0x9F, 0x60, 0x90, 0xB7, 0x05, 0xC2, 0x20, 0x82, 0xE6,
	0xE0, 0x57, 0x55, 0xFF, 0x5F, 0xC1, 0x76, 0x66, 0x46, 0xF8, 0x67, 0xB8,
	0x8B, 0x81, 0x53, 0xA9, 0x8B, 0x48, 0x9E, 0x2A, 0xF9, 0x60, 0x57, 0xBA,
	0xD7, 0x52, 0x97, 0x53, 0xF0, 0x2F, 0x78, 0x68, 0x50, 0x18, 0x12, 0x00,
	0x5E, 0x8E, 0x2A, 0x62, 0x0D, 0x48, 0xA9, 0xB5, 0x6B, 0xBC, 0xA0, 0x52,
	0x53, 0xD7, 0x65, 0x23, 0xA4, 0xA5, 0xF5, 0x32, 0x49, 0x2D, 0xB2, 0x77,
	0x2C, 0x66, 0x97, 0xBA, 0x58, 0xE0, 0x16, 0x1C, 0x8C, 0x02, 0x5D, 0xE0,
	0x73, 0x2E, 0xDF, 0xB4, 0x2F, 0x4C, 0xA2, 0x11, 0x26, 0xC1, 0xAF, 0xAC,
	0x73, 0xBC, 0xB6, 0x98, 0xE0, 0x20, 0x61, 0x0E, 0x52, 0x4A, 0x6C, 0x80,
	0xB5, 0x0C, 0x10, 0x80, 0x09, 0x17, 0xF4, 0x9D, 0xFE, 0xB5, 0xFC, 0x63,
	0x9A, 0x80, 0x3F, 0x76,
	};

	// Another (new) test signing key raw bytes in DER-encoded PKCS8 format.
	const uint8_t kSigningKey2[] = {
	0x30, 0x82, 0x01, 0x54, 0x02, 0x01, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a,
	0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82,
	0x01, 0x3e, 0x30, 0x82, 0x01, 0x3a, 0x02, 0x01, 0x00, 0x02, 0x41, 0x00,
	0x99, 0x98, 0x6b, 0x79, 0x5d, 0x38, 0x33, 0x79, 0x27, 0x0a, 0x2e, 0xb0,
	0x89, 0xba, 0xf8, 0xf6, 0x80, 0xde, 0xb0, 0x79, 0xf2, 0xd4, 0x6d, 0xf7,
	0x3c, 0xa3, 0x97, 0xf6, 0x4a, 0x3c, 0xa5, 0xcc, 0x40, 0x8a, 0xef, 0x59,
	0xaa, 0xc2, 0x82, 0x8f, 0xbc, 0x0d, 0x5b, 0x63, 0xc6, 0xaa, 0x72, 0xe2,
	0xf3, 0x57, 0xdd, 0x74, 0x00, 0xb0, 0x42, 0xd6, 0x27, 0xe7, 0x17, 0x61,
	0x0a, 0xdc, 0xc1, 0xf7, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x40, 0x34,
	0xcf, 0xc9, 0xb4, 0x73, 0x2f, 0x0d, 0xd3, 0xcc, 0x6e, 0x9d, 0xdb, 0x29,
	0xa0, 0x56, 0x56, 0x3b, 0xbd, 0x56, 0x24, 0xb8, 0x2f, 0xfe, 0x97, 0x92,
	0x0c, 0x16, 0x06, 0x23, 0x44, 0x73, 0x25, 0x1d, 0x65, 0xf4, 0xda, 0x77,
	0xe7, 0x91, 0x2e, 0x91, 0x05, 0x10, 0xc1, 0x1b, 0x39, 0x5e, 0xb2, 0xf7,
	0xbd, 0x14, 0x19, 0xcb, 0x6b, 0xc3, 0xa9, 0xe8, 0x91, 0xf7, 0xa7, 0xa9,
	0x90, 0x08, 0x51, 0x02, 0x21, 0x00, 0xcc, 0x9e, 0x03, 0x54, 0x8f, 0x24,
	0xde, 0x90, 0x25, 0xec, 0x21, 0xaf, 0xe6, 0x27, 0x2a, 0x16, 0x42, 0x74,
	0xda, 0xf8, 0x84, 0xc4, 0x8c, 0x1e, 0x86, 0x12, 0x04, 0x5c, 0x17, 0x01,
	0xea, 0x9d, 0x02, 0x21, 0x00, 0xc0, 0x2a, 0x6c, 0xe9, 0xa1, 0x1a, 0x41,
	0x11, 0x94, 0x50, 0xf7, 0x1a, 0xd3, 0xbc, 0xf3, 0xa2, 0xf8, 0x46, 0xbc,
	0x26, 0x77, 0x78, 0xef, 0xc0, 0x54, 0xec, 0x22, 0x3f, 0x2c, 0x57, 0xe0,
	0xa3, 0x02, 0x20, 0x31, 0xf2, 0xc8, 0xa1, 0x55, 0xa8, 0x0c, 0x64, 0x67,
	0xbd, 0x72, 0xa3, 0xbb, 0xad, 0x07, 0xcb, 0x13, 0x41, 0xef, 0x4a, 0x07,
	0x2e, 0xeb, 0x7d, 0x70, 0x00, 0xe9, 0xeb, 0x88, 0xfa, 0x40, 0xc9, 0x02,
	0x20, 0x3a, 0xe0, 0xc4, 0xde, 0x10, 0x6e, 0x6a, 0xe1, 0x68, 0x00, 0x26,
	0xb6, 0x21, 0x8a, 0x13, 0x5c, 0x2b, 0x96, 0x00, 0xb0, 0x08, 0x8b, 0x15,
	0x6a, 0x68, 0x9a, 0xb1, 0x23, 0x8a, 0x02, 0xa2, 0xe1, 0x02, 0x21, 0x00,
	0xa3, 0xf2, 0x2d, 0x55, 0xc1, 0x6d, 0x40, 0xfa, 0x1d, 0xf7, 0xba, 0x86,
	0xef, 0x50, 0x98, 0xfc, 0xee, 0x09, 0xcc, 0xe7, 0x22, 0xb9, 0x4e, 0x80,
	0x32, 0x1a, 0x6b, 0xb3, 0x5f, 0x35, 0xbd, 0xf3,
	};

	// SHA256 signature of kSigningKey2 for "example.com" domain.
	const uint8_t kSigningKey2Signature[] = {
	0x70, 0xED, 0x27, 0x42, 0x34, 0x69, 0xB6, 0x47, 0x9E, 0x7C, 0xA0, 0xF0,
	0xE5, 0x0A, 0x49, 0x49, 0x00, 0xDA, 0xBC, 0x70, 0x01, 0xC5, 0x4B, 0xDB,
	0x47, 0xD5, 0xAF, 0xA1, 0xAD, 0xB7, 0xE4, 0xE1, 0xBD, 0x5A, 0x1C, 0x35,
	0x44, 0x5A, 0xAA, 0xDB, 0x27, 0xBA, 0xA4, 0xA9, 0xC8, 0xDD, 0xEC, 0xD6,
	0xEB, 0xFE, 0xDB, 0xE0, 0x03, 0x5C, 0xA6, 0x2E, 0x5A, 0xEC, 0x75, 0x79,
	0xB8, 0x5F, 0x0A, 0xEE, 0x05, 0xB2, 0x61, 0xDC, 0x58, 0xF0, 0xD1, 0xCB,
	0x7B, 0x2A, 0xDB, 0xC1, 0x7C, 0x60, 0xE6, 0x3E, 0x87, 0x02, 0x61, 0xE6,
	0x90, 0xFD, 0x54, 0x65, 0xC7, 0xFF, 0x74, 0x09, 0xD6, 0xAA, 0x8E, 0xDC,
	0x5B, 0xC8, 0x38, 0x0C, 0x84, 0x0E, 0x84, 0x2E, 0x37, 0x2A, 0x4B, 0xDE,
	0x31, 0x82, 0x76, 0x1E, 0x77, 0xA5, 0xC1, 0xD5, 0xED, 0xFF, 0xBC, 0xEA,
	0x91, 0xB7, 0xBC, 0xFF, 0x76, 0x23, 0xE2, 0x78, 0x63, 0x01, 0x47, 0x80,
	0x47, 0x1F, 0x3A, 0x49, 0xBF, 0x0D, 0xCF, 0x27, 0x70, 0x92, 0xBB, 0xEA,
	0xB3, 0x92, 0x70, 0xFF, 0x1E, 0x4B, 0x1B, 0xE0, 0x4E, 0x0C, 0x4C, 0x6B,
	0x5D, 0x77, 0x06, 0xBB, 0xFB, 0x9B, 0x0E, 0x55, 0xB8, 0x8A, 0xF2, 0x45,
	0xA9, 0xF3, 0x54, 0x3D, 0x0C, 0xAC, 0xA8, 0x15, 0xD2, 0x31, 0x8D, 0x97,
	0x08, 0x73, 0xC9, 0x0F, 0x1D, 0xDE, 0x10, 0x22, 0xC6, 0x55, 0x53, 0x7F,
	0x7C, 0x50, 0x16, 0x5A, 0x08, 0xCC, 0x1C, 0x53, 0x9B, 0x02, 0xB8, 0x80,
	0xB7, 0x46, 0xF5, 0xF1, 0xC7, 0x3D, 0x36, 0xBD, 0x26, 0x02, 0xDE, 0x10,
	0xAB, 0x5A, 0x03, 0xCD, 0x67, 0x00, 0x1C, 0x23, 0xC7, 0x13, 0xEE, 0x5D,
	0xAF, 0xC5, 0x1F, 0xE3, 0xA0, 0x54, 0xAC, 0xC2, 0xC9, 0x44, 0xD4, 0x4A,
	0x09, 0x8E, 0xEB, 0xAE, 0xCA, 0x08, 0x8A, 0x7F, 0x41, 0x7B, 0xD8, 0x2C,
	0xDD, 0x6F, 0x80, 0xC3,
	};

	} // namespace

	std::unique_ptr<DMSigningKeyForTesting> GetTestKey1() {
	constexpr int kFakeKeyVersion = 5;
	return std::make_unique<DMSigningKeyForTesting>(
	kSigningKey1, sizeof(kSigningKey1), kSigningKey1Signature,
	sizeof(kSigningKey1Signature), kFakeKeyVersion, "example.com");
	}

	std::unique_ptr<DMSigningKeyForTesting> GetTestKey2() {
	constexpr int kFakeKeyVersion = 7;
	return std::make_unique<DMSigningKeyForTesting>(
	kSigningKey2, sizeof(kSigningKey2), kSigningKey2Signature,
	sizeof(kSigningKey2Signature), kFakeKeyVersion, "example.com");
	}

	std::unique_ptr<
	::wireless_android_enterprise_devicemanagement::OmahaSettingsClientProto>
	GetDefaultTestingOmahaPolicyProto() {
	auto omaha_settings =
	std::make_unique<::wireless_android_enterprise_devicemanagement::
	OmahaSettingsClientProto>();

	omaha_settings->set_auto_update_check_period_minutes(111);
	omaha_settings->mutable_updates_suppressed()->set_start_hour(9);
	omaha_settings->mutable_updates_suppressed()->set_start_minute(30);
	omaha_settings->mutable_updates_suppressed()->set_duration_min(120);
	omaha_settings->set_download_preference("test_download_preference");
	omaha_settings->set_proxy_mode("test_proxy_mode");
	omaha_settings->set_proxy_pac_url("foo.c/proxy.pa");
	omaha_settings->set_install_default(
	::wireless_android_enterprise_devicemanagement::INSTALL_ENABLED);
	omaha_settings->set_update_default(
	::wireless_android_enterprise_devicemanagement::MANUAL_UPDATES_ONLY);

	::wireless_android_enterprise_devicemanagement::ApplicationSettings app;
	app.set_app_guid(kChromeAppId);
	app.set_install(
	::wireless_android_enterprise_devicemanagement::INSTALL_DISABLED);
	app.set_update(
	::wireless_android_enterprise_devicemanagement::AUTOMATIC_UPDATES_ONLY);
	app.set_target_version_prefix("81.");
	app.set_rollback_to_target_version(
	::wireless_android_enterprise_devicemanagement::
	ROLLBACK_TO_TARGET_VERSION_ENABLED);
	omaha_settings->mutable_application_settings()->Add(std::move(app));

	return omaha_settings;
	}

	std::unique_ptr<::enterprise_management::DeviceManagementResponse>
	GetDefaultTestingPolicyFetchDMResponse(
	bool first_request,
	bool rotate_to_new_key,
	DMPolicyBuilderForTesting::SigningOption signing_option) {
	std::unique_ptr<DMPolicyBuilderForTesting> policy_builder =
	DMPolicyBuilderForTesting::CreateInstanceWithOptions(
	first_request, rotate_to_new_key, signing_option);
	DMPolicyMap policy_map;
	policy_map.emplace("google/machine-level-omaha",
	GetDefaultTestingOmahaPolicyProto()->SerializeAsString());
	return policy_builder->BuildDMResponseForPolicies(policy_map);
	}

	DMSigningKeyForTesting::DMSigningKeyForTesting(const uint8_t key_data[],
	size_t key_data_length,
	const uint8_t key_signature[],
	size_t key_signature_length,
	int key_version,
	const std::string& domain)
	: key_data_(key_data, key_data + key_data_length),
	key_signature_(reinterpret_cast<const char*>(key_signature),
	key_signature_length),
	key_version_(key_version),
	key_signature_domain_(domain) {}

	DMSigningKeyForTesting::~DMSigningKeyForTesting() = default;

	std::string DMSigningKeyForTesting::GetPublicKeyString() const {
	std::vector<uint8_t> public_key;
	std::unique_ptr<crypto::RSAPrivateKey> private_key =
	crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_data_);
	private_key->ExportPublicKey(&public_key);
	return std::string(reinterpret_cast<const char*>(public_key.data()),
	public_key.size());
	}

	void DMSigningKeyForTesting::SignData(const std::string& data,
	std::string* signature) const {
	std::unique_ptr<crypto::RSAPrivateKey> private_key =
	crypto::RSAPrivateKey::CreateFromPrivateKeyInfo(key_data_);
	std::unique_ptr<crypto::SignatureCreator> signature_creator(
	crypto::SignatureCreator::Create(private_key.get(),
	crypto::SignatureCreator::SHA256));
	signature_creator->Update(reinterpret_cast<const uint8_t*>(data.c_str()),
	data.size());
	std::vector<uint8_t> signature_bytes;
	signature_creator->Final(&signature_bytes);

	signature->assign(reinterpret_cast<const char*>(signature_bytes.data()),
	signature_bytes.size());
	}

	DMPolicyBuilderForTesting::DMPolicyBuilderForTesting(
	const std::string& dm_token,
	const std::string& user_name,
	const std::string& device_id,
	std::unique_ptr<DMSigningKeyForTesting> signing_key,
	std::unique_ptr<DMSigningKeyForTesting> new_signing_key,
	SigningOption signing_option)
	: dm_token_(dm_token),
	user_name_(user_name),
	device_id_(device_id),
	signing_option_(signing_option),
	signing_key_(std::move(signing_key)),
	new_signing_key_(std::move(new_signing_key)) {}

	DMPolicyBuilderForTesting::~DMPolicyBuilderForTesting() = default;

	// static
	std::unique_ptr<DMPolicyBuilderForTesting>
	DMPolicyBuilderForTesting::CreateInstanceWithOptions(
	bool first_request,
	bool rotate_to_new_key,
	SigningOption signing_option) {
	std::unique_ptr<DMSigningKeyForTesting> signing_key;
	std::unique_ptr<DMSigningKeyForTesting> new_signing_key;

	if (first_request) {
	new_signing_key = GetTestKey1();
	} else {
	signing_key = GetTestKey1();
	if (rotate_to_new_key) {
	new_signing_key = GetTestKey2();
	}
	}

	return std::make_unique<DMPolicyBuilderForTesting>(
	"test-dm-token", "username@example.com", "test-device-id",
	std::move(signing_key), std::move(new_signing_key), signing_option);
	}

	void DMPolicyBuilderForTesting::FillPolicyFetchResponseWithPayload(
	enterprise_management::PolicyFetchResponse* policy_response,
	const std::string& policy_type,
	const std::string& policy_payload) const {
	const DMSigningKeyForTesting* signing_key = signing_key_.get();
	if (new_signing_key_) {
	signing_key = new_signing_key_.get();

	// Attach the new public key and its signature to the policy response.
	std::string new_public_key_string = new_signing_key_->GetPublicKeyString();
	policy_response->set_new_public_key(new_public_key_string);
	policy_response->set_new_public_key_verification_signature_deprecated(
	new_signing_key_->GetPublicKeySignature());
	if (signing_key_) {
	if (signing_option_ == SigningOption::kTamperKeySignature) {
	*policy_response->mutable_new_public_key_signature() = "bad-key-sig";
	} else {
	signing_key_->SignData(
	policy_response->new_public_key(),
	policy_response->mutable_new_public_key_signature());
	}
	}

	// Attach the new public key verification data to policy response.
	enterprise_management::PublicKeyVerificationData key_verif_data;
	key_verif_data.set_new_public_key(new_public_key_string);
	key_verif_data.set_domain(new_signing_key_->GetPublicKeySignatureDomain());

	policy_response->set_new_public_key_verification_data(
	key_verif_data.SerializeAsString());
	policy_response->set_new_public_key_verification_data_signature(
	new_signing_key_->GetPublicKeySignature());
	} else {
	policy_response->clear_new_public_key();
	policy_response->clear_new_public_key_verification_data();
	policy_response->clear_new_public_key_verification_data_signature();
	policy_response->clear_new_public_key_verification_signature_deprecated();
	}

	enterprise_management::PolicyData policy_data;
	policy_data.set_policy_type(policy_type);
	policy_data.set_timestamp(time(nullptr));
	policy_data.set_request_token(dm_token_);
	if (signing_key->has_key_version()) {
	policy_data.set_public_key_version(signing_key->key_version());
	}
	policy_data.set_username(user_name_);
	policy_data.set_device_id(device_id_);
	policy_data.set_policy_value(policy_payload);
	policy_data.SerializeToString(policy_response->mutable_policy_data());

	// PolicyData signature.
	if (signing_option_ == SigningOption::kTamperDataSignature) {
	*policy_response->mutable_policy_data_signature() = "bad-data-sig";
	} else {
	signing_key->SignData(policy_response->policy_data(),
	policy_response->mutable_policy_data_signature());
	}
	}

	std::string DMPolicyBuilderForTesting::GetResponseBlobForPolicyPayload(
	const std::string& policy_type,
	const std::string& policy_payload) const {
	enterprise_management::PolicyFetchResponse policy_response;
	FillPolicyFetchResponseWithPayload(&policy_response, policy_type,
	policy_payload);
	return policy_response.SerializeAsString();
	}

	std::unique_ptr<::enterprise_management::DeviceManagementResponse>
	DMPolicyBuilderForTesting::BuildDMResponseForPolicies(
	const base::flat_map<std::string, std::string>& policies) const {
	auto dm_response =
	std::make_unique<::enterprise_management::DeviceManagementResponse>();

	for (const auto& policy : policies) {
	FillPolicyFetchResponseWithPayload(
	dm_response->mutable_policy_response()->add_responses(), policy.first,
	policy.second);
	}
	return dm_response;
	}

	} // namespace updater