unplugged-system/packages/modules/AdServices/adservices/libraries/cobalt/proto/envelope.proto

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// Copyright 2023 Google LLC
//
// 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 = "proto3";
package cobalt;
import "cobalt/proto/observation_batch.proto";
option java_multiple_files = true;
option java_package = "com.google.cobalt";
////////////////////////////////////////////////////////////////////////////////
// NOTE: This file is used by the Cobalt client and the Cobalt servers.
// The source-of-truth of this file is located in Cobalt's open source code
// repository, and the file is copied to Android where it is used by the Cobalt
// client. Do not edit the copy of this file in this Android repo as those edits
// will be overwritten when the file is next copied.
////////////////////////////////////////////////////////////////////////////////
// An envelope contains multiple ObservationBatches. An encrypted Envelope
// is the unit sent from an Encoder client to a Shuffler.
message Envelope {
// We used to put a SystemProfile into an Envelope but we no longer do.
// Now we only put SystemProfiles into ObservationBatches.
reserved 3;
reserved "system_profile";
repeated ObservationBatch batch = 1;
// If api_key contains the right secret string, this allows Cobalt to identify
// that this envelope comes from a valid Cobalt client.
bytes api_key = 4;
}