1/*
2 * Copyright (C) 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
15 */
16
17syntax = "proto2";
18
19package android_backup_crypto;
20
21option java_package = "com.android.server.backup.encryption.protos";
22option java_outer_classname = "KeyValueListingProto";
23
24// An entry of a key-value pair.
25message KeyValueEntry {
26  // Plaintext key of the key-value pair.
27  optional string key = 1;
28  // SHA-256 MAC of the plaintext of the chunk containing the pair
29  optional bytes hash = 2;
30}
31
32// Describes the key/value pairs currently in the backup blob, mapping from the
33// plaintext key to the hash of the chunk containing the pair.
34//
35// This is local state stored on the device. It is never sent to the
36// backup server. See ChunkOrdering for how the device restores the
37// key-value pairs in the correct order.
38message KeyValueListing {
39  repeated KeyValueEntry entries = 1;
40}
41