[EasyUnlock] Serialize and store BeaconSeeds along as cryptohome key metadata.

chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.cc

 // 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 "chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 11 matching lines @@
 namespace {
 
 const char kKeyBluetoothAddress[] = "bluetoothAddress";
 const char kKeyBluetoothType[] = "bluetoothType";
 const char kKeyPermitRecord[] = "permitRecord";
 const char kKeyPermitId[] = "permitRecord.id";
 const char kKeyPermitPermitId[] = "permitRecord.permitId";
 const char kKeyPermitData[] = "permitRecord.data";
 const char kKeyPermitType[] = "permitRecord.type";
 const char kKeyPsk[] = "psk";
+const char kKeySerializedBeaconSeeds[] = "serializedBeaconSeeds";
 
 const char kKeyLabelPrefix[] = "easy-unlock-";
 
 const char kPermitPermitIdFormat[] = "permit://google.com/easyunlock/v1/%s";
 const char kPermitTypeLicence[] = "licence";
 
 }  // namespace
 
 EasyUnlockKeyManager::EasyUnlockKeyManager() : weak_ptr_factory_(this) {}
 
@@ skipping 76 matching lines @@
   dict->SetString(kKeyPsk, data.psk);
   std::unique_ptr<base::DictionaryValue> permit_record(
       new base::DictionaryValue);
   dict->Set(kKeyPermitRecord, std::move(permit_record));
   dict->SetString(kKeyPermitId, data.public_key);
   dict->SetString(kKeyPermitData, data.public_key);
   dict->SetString(kKeyPermitType, kPermitTypeLicence);
   dict->SetString(kKeyPermitPermitId,
                   base::StringPrintf(kPermitPermitIdFormat,
                                      account_id.GetUserEmail().c_str()));
+  dict->SetString(kKeySerializedBeaconSeeds, data.serialized_beacon_seeds);
 }
 
 // static
 bool EasyUnlockKeyManager::RemoteDeviceDictionaryToDeviceData(
     const base::DictionaryValue& dict,
     EasyUnlockDeviceKeyData* data) {
   std::string bluetooth_address;
   std::string public_key;
   std::string psk;
 
   if (!dict.GetString(kKeyBluetoothAddress, &bluetooth_address) ||
       !dict.GetString(kKeyPermitId, &public_key) ||
       !dict.GetString(kKeyPsk, &psk)) {
     return false;
   }
 
   // TODO(tengs): Move this conditional up once we can be certain that the
   // dictionary will contain the Bluetooth type key.
   int bluetooth_type_as_int;
   if (dict.GetInteger(kKeyBluetoothType, &bluetooth_type_as_int)) {
     if (bluetooth_type_as_int >= EasyUnlockDeviceKeyData::NUM_BLUETOOTH_TYPES) {
       PA_LOG(ERROR) << "Invalid Bluetooth type: " << bluetooth_type_as_int;
     } else {
       data->bluetooth_type =
           static_cast<EasyUnlockDeviceKeyData::BluetoothType>(
               bluetooth_type_as_int);
     }
   }
 
+  std::string serialized_beacon_seeds;
+  if (dict.GetString(kKeySerializedBeaconSeeds, &serialized_beacon_seeds)) {
+    data->serialized_beacon_seeds = serialized_beacon_seeds;
+  } else {
+    PA_LOG(ERROR) << "Failed to parse key data: "
+                  << "expected serialized_beacon_seeds.";
+  }
+
   data->bluetooth_address.swap(bluetooth_address);
   data->public_key.swap(public_key);
   data->psk.swap(psk);
   return true;
 }
 
 // static
 void EasyUnlockKeyManager::DeviceDataListToRemoteDeviceList(
     const AccountId& account_id,
     const EasyUnlockDeviceKeyDataList& data_list,
@@ skipping 67 matching lines @@
     const EasyUnlockDeviceKeyDataList& fetched_data) {
   if (!callback.is_null())
     callback.Run(fetch_success, fetched_data);
 
   DCHECK(pending_read_operation_);
   pending_read_operation_.reset();
   RunNextOperation();
 }
 
 }  // namespace chromeos