| /* |
| * Copyright (C) 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server.backup.encryption.storage; |
| |
| import android.provider.BaseColumns; |
| |
| /** Contract for the backup encryption database. Describes tables present. */ |
| class BackupEncryptionDbContract { |
| /** |
| * Table containing tertiary keys belonging to the user. Tertiary keys are wrapped by a |
| * secondary key, which never leaves {@code AndroidKeyStore} (a provider for {@link |
| * java.security.KeyStore}). Each application has a tertiary key, which is used to encrypt the |
| * backup data. |
| */ |
| static class TertiaryKeysEntry implements BaseColumns { |
| static final String TABLE_NAME = "tertiary_keys"; |
| |
| /** Alias of the secondary key used to wrap the tertiary key. */ |
| static final String COLUMN_NAME_SECONDARY_KEY_ALIAS = "secondary_key_alias"; |
| |
| /** Name of the package to which the tertiary key belongs. */ |
| static final String COLUMN_NAME_PACKAGE_NAME = "package_name"; |
| |
| /** Encrypted bytes of the tertiary key. */ |
| static final String COLUMN_NAME_WRAPPED_KEY_BYTES = "wrapped_key_bytes"; |
| } |
| } |