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/*
* Copyright (C) 2017 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.locksettings.recoverablekeystore.storage;
import android.provider.BaseColumns;
/**
* Contract for recoverable key database. Describes the tables present.
*/
class RecoverableKeyStoreDbContract {
/**
* Table holding wrapped keys, and information about when they were last synced.
*/
static class KeysEntry implements BaseColumns {
static final String TABLE_NAME = "keys";
/**
* The user id of the profile the application is running under.
*/
static final String COLUMN_NAME_USER_ID = "user_id";
/**
* The uid of the application that generated the key.
*/
static final String COLUMN_NAME_UID = "uid";
/**
* The alias of the key, as set in AndroidKeyStore.
*/
static final String COLUMN_NAME_ALIAS = "alias";
/**
* Nonce with which the key was encrypted.
*/
static final String COLUMN_NAME_NONCE = "nonce";
/**
* Encrypted bytes of the key.
*/
static final String COLUMN_NAME_WRAPPED_KEY = "wrapped_key";
/**
* Generation ID of the platform key that was used to encrypt this key.
*/
static final String COLUMN_NAME_GENERATION_ID = "platform_key_generation_id";
/**
* Timestamp of when this key was last synced with remote storage, or -1 if never synced.
*/
static final String COLUMN_NAME_LAST_SYNCED_AT = "last_synced_at";
/**
* Status of the key sync {@code RecoverableKeyStoreLoader#setRecoveryStatus}
*/
static final String COLUMN_NAME_RECOVERY_STATUS = "recovery_status";
}
/**
* Recoverable KeyStore metadata for a specific user profile.
*/
static class UserMetadataEntry implements BaseColumns {
static final String TABLE_NAME = "user_metadata";
/**
* User ID of the profile.
*/
static final String COLUMN_NAME_USER_ID = "user_id";
/**
* Every time a new platform key is generated for a user, this increments. The platform key
* is used to wrap recoverable keys on disk.
*/
static final String COLUMN_NAME_PLATFORM_KEY_GENERATION_ID = "platform_key_generation_id";
}
/**
* Table holding metadata of the recovery service.
*/
static class RecoveryServiceMetadataEntry implements BaseColumns {
static final String TABLE_NAME = "recovery_service_metadata";
/**
* The user id of the profile the application is running under.
*/
static final String COLUMN_NAME_USER_ID = "user_id";
/**
* The uid of the application that initializes the local recovery components.
*/
static final String COLUMN_NAME_UID = "uid";
/**
* The public key of the recovery service.
*/
static final String COLUMN_NAME_PUBLIC_KEY = "public_key";
/**
* Secret types used for end-to-end encryption.
*/
static final String COLUMN_NAME_SECRET_TYPES = "secret_types";
/**
* The server parameters of the recovery service.
*/
static final String COLUMN_NAME_SERVER_PARAMETERS = "server_parameters";
}
}
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