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boolean-serial-json.cpp
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boolean-serial-json.cpp
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//==================================================================================
// BSD 2-Clause License
//
// Copyright (c) 2014-2022, NJIT, Duality Technologies Inc. and other contributors
//
// All rights reserved.
//
// Author TPOC: [email protected]
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//==================================================================================
/*
Example for FHEW with JSON serialization
*/
#include "binfhecontext-ser.h"
using namespace lbcrypto;
// path where files will be written to
const std::string DATAFOLDER = "demoData";
int main() {
// Generating the crypto context
auto cc1 = BinFHEContext();
cc1.GenerateBinFHEContext(TOY);
std::cout << "Generating keys." << std::endl;
// Generating the secret key
auto sk1 = cc1.KeyGen();
// Generate the bootstrapping keys
cc1.BTKeyGen(sk1);
std::cout << "Done generating all keys." << std::endl;
// Encryption for a ciphertext that will be serialized
auto ct1 = cc1.Encrypt(sk1, 1);
// CODE FOR SERIALIZATION
// Serializing key-independent crypto context
if (!Serial::SerializeToFile(DATAFOLDER + "/cryptoContext.txt", cc1, SerType::JSON)) {
std::cerr << "Error serializing the cryptocontext" << std::endl;
return 1;
}
std::cout << "The cryptocontext has been serialized." << std::endl;
// Serializing refreshing and key switching keys (needed for bootstrapping)
if (!Serial::SerializeToFile(DATAFOLDER + "/refreshKey.txt", cc1.GetRefreshKey(), SerType::JSON)) {
std::cerr << "Error serializing the refreshing key" << std::endl;
return 1;
}
std::cout << "The refreshing key has been serialized." << std::endl;
if (!Serial::SerializeToFile(DATAFOLDER + "/ksKey.txt", cc1.GetSwitchKey(), SerType::JSON)) {
std::cerr << "Error serializing the switching key" << std::endl;
return 1;
}
std::cout << "The key switching key has been serialized." << std::endl;
// Serializing private keys
if (!Serial::SerializeToFile(DATAFOLDER + "/sk1.txt", sk1, SerType::JSON)) {
std::cerr << "Error serializing sk1" << std::endl;
return 1;
}
std::cout << "The secret key sk1 key been serialized." << std::endl;
// Serializing a ciphertext
if (!Serial::SerializeToFile(DATAFOLDER + "/ct1.txt", ct1, SerType::JSON)) {
std::cerr << "Error serializing ct1" << std::endl;
return 1;
}
std::cout << "A ciphertext has been serialized." << std::endl;
// CODE FOR DESERIALIZATION
// Deserializing the cryptocontext
BinFHEContext cc;
if (Serial::DeserializeFromFile(DATAFOLDER + "/cryptoContext.txt", cc, SerType::JSON) == false) {
std::cerr << "Could not deserialize the cryptocontext" << std::endl;
return 1;
}
std::cout << "The cryptocontext has been deserialized." << std::endl;
// deserializing the refreshing and switching keys (for bootstrapping)
RingGSWACCKey refreshKey;
if (Serial::DeserializeFromFile(DATAFOLDER + "/refreshKey.txt", refreshKey, SerType::JSON) == false) {
std::cerr << "Could not deserialize the refresh key" << std::endl;
return 1;
}
std::cout << "The refresh key has been deserialized." << std::endl;
LWESwitchingKey ksKey;
if (Serial::DeserializeFromFile(DATAFOLDER + "/ksKey.txt", ksKey, SerType::JSON) == false) {
std::cerr << "Could not deserialize the switching key" << std::endl;
return 1;
}
std::cout << "The switching key has been deserialized." << std::endl;
// Loading the keys in the cryptocontext
cc.BTKeyLoad({refreshKey, ksKey});
// Deserializing the secret key
LWEPrivateKey sk;
if (Serial::DeserializeFromFile(DATAFOLDER + "/sk1.txt", sk, SerType::JSON) == false) {
std::cerr << "Could not deserialize the secret key" << std::endl;
return 1;
}
std::cout << "The secret key has been deserialized." << std::endl;
// Deserializing a previously serialized ciphertext
LWECiphertext ct;
if (Serial::DeserializeFromFile(DATAFOLDER + "/ct1.txt", ct, SerType::JSON) == false) {
std::cerr << "Could not deserialize the ciphertext" << std::endl;
return 1;
}
std::cout << "The ciphertext has been deserialized." << std::endl;
// OPERATIONS WITH DESERIALIZED KEYS AND CIPHERTEXTS
auto ct2 = cc.Encrypt(sk, 1);
std::cout << "Running the computation" << std::endl;
auto ctResult = cc.EvalBinGate(AND, ct, ct2);
std::cout << "The computation has completed" << std::endl;
LWEPlaintext result;
cc.Decrypt(sk, ctResult, &result);
std::cout << "result of 1 AND 1 = " << result << std::endl;
return 0;
}