1// Copyright 2023 Google LLC 2// 3// Licensed under the Apache License, Version 2.0 (the "License"); 4// you may not use this file except in compliance with the License. 5// You may obtain a copy of the License at 6// 7// https://www.apache.org/licenses/LICENSE-2.0 8// 9// Unless required by applicable law or agreed to in writing, software 10// distributed under the License is distributed on an "AS-IS" BASIS, 11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12// See the License for the specific language governing permissions and 13// limitations under the License. 14 15syntax = "proto3"; 16 17package privacy.ppn; 18 19option java_multiple_files = true; 20 21// Indicates client's desired or capable key support. 22enum KeyType { 23 reserved 3; 24 UNKNOWN_KEY_TYPE = 0; 25 ZINC_KEY_TYPE = 1; 26 AT_PUBLIC_METADATA_KEY_TYPE = 2; 27} 28