1/* 2 * Copyright 2020 Google LLC 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 = "proto3"; 18 19package fcp.secagg; 20 21import "fcp/secagg/server/secagg_server_enums.proto"; 22 23option java_package = "fcp.secagg.server"; 24option java_multiple_files = true; 25 26// Specifies the security and robustness requirements for an instance of secure 27// aggregation 28message SecureAggregationRequirements { 29 // The adversary class against which to protect. 30 AdversaryClass adversary_class = 1; 31 32 // Fraction of clients in the population which might be compromised 33 // by an adversary, expressed as a fraction (between 0.0 and 1.0). 34 double adversarial_client_rate = 2; 35 36 // Estimated client dropout rate, expressed as a fraction (between 0.0 37 // and 1.0). 38 double estimated_dropout_rate = 3; 39 40 // The minimum number of (non-adversarial) users' values that must be 41 // aggregated together before the server can gain access to the aggregate, 42 // even transiently (e.g. in RAM). 43 int32 minimum_clients_in_server_visible_aggregate = 4; 44} 45