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psi.proto
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psi.proto
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//
// Copyright 2020 the authors listed in CONTRIBUTORS.md
//
// 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 psi_proto;
// Setup phase message for server.
message ServerSetup {
message RawInfo {
repeated bytes encrypted_elements = 1;
}
message GCSInfo {
int32 div = 1;
int64 hash_range = 2;
bytes bits = 3;
}
message BloomFilterInfo {
int32 num_hash_functions = 1;
bytes bits = 2;
}
oneof data_structure {
RawInfo raw = 1;
GCSInfo gcs = 2;
BloomFilterInfo bloom_filter = 3;
}
}
// Client request with encoded elements sent to the server as an array of
// binary strings, together with a boolean reveal_intersection that
// indicates whether the client wants to learn the elements in
// the intersection or only its size.
message Request {
bool reveal_intersection = 1;
repeated bytes encrypted_elements = 2;
}
// Server response after encrypting client elements under the
// commutative encryption scheme, sent back to the client
// as an array of binary strings.
message Response {
repeated bytes encrypted_elements = 1;
}