// Copyright (c) 2020 The Bitcoin Core developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include <chainparams.h> #include <key_io.h> #include <test/fuzz/FuzzedDataProvider.h> #include <test/fuzz/fuzz.h> #include <test/fuzz/util.h> #include <util/message.h> #include <util/strencodings.h> #include <cassert> #include <cstdint> #include <iostream> #include <string> #include <vector> void initialize_message() { static const ECCVerifyHandle ecc_verify_handle; ECC_Start(); SelectParams(CBaseChainParams::REGTEST); } FUZZ_TARGET_INIT(message, initialize_message) { FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); const std::string random_message = fuzzed_data_provider.ConsumeRandomLengthString(1024); { const std::vector<uint8_t> random_bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider); CKey private_key; private_key.Set(random_bytes.begin(), random_bytes.end(), fuzzed_data_provider.ConsumeBool()); std::string signature; const bool message_signed = MessageSign(private_key, random_message, signature); if (private_key.IsValid()) { assert(message_signed); const MessageVerificationResult verification_result = MessageVerify(EncodeDestination(PKHash(private_key.GetPubKey().GetID())), signature, random_message); assert(verification_result == MessageVerificationResult::OK); } } { (void)MessageHash(random_message); (void)MessageVerify(fuzzed_data_provider.ConsumeRandomLengthString(1024), fuzzed_data_provider.ConsumeRandomLengthString(1024), random_message); (void)SigningResultString(fuzzed_data_provider.PickValueInArray({SigningResult::OK, SigningResult::PRIVATE_KEY_NOT_AVAILABLE, SigningResult::SIGNING_FAILED})); } }