android10/system/security/keystore/keystore_client.proto

// Copyright 2015 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.

syntax = "proto2";

package keystore;

option optimize_for = LITE_RUNTIME;

// Holds encrypted, authenticated data.
message EncryptedData {
  // The initialization vector used during encryption.
  optional bytes init_vector = 1;
  // MAC of (init_vector + encrypted_data).
  optional bytes authentication_data = 2;
  optional bytes encrypted_data = 3;
}