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0dbce4b103
In src/test/fuzz/script_sigcache.cpp, we should really be setting up a full working BasicTestingSetup. The initialize_ function is only run once anyway. In src/test/txvalidationcache_tests.cpp, the Dersig100Setup inherits from BasicTestingSetup, which should have already set up a global script execution cache without the need to explicitly call InitScriptExecutionCache.
56 lines
2.2 KiB
C++
56 lines
2.2 KiB
C++
// Copyright (c) 2020 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <chainparams.h>
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#include <chainparamsbase.h>
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#include <key.h>
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#include <pubkey.h>
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#include <script/sigcache.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <test/fuzz/util.h>
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#include <test/util/setup_common.h>
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#include <cstdint>
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#include <optional>
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#include <string>
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#include <vector>
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namespace {
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const BasicTestingSetup* g_setup;
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} // namespace
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void initialize_script_sigcache()
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{
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static const auto testing_setup = MakeNoLogFileContext<>();
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g_setup = testing_setup.get();
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}
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FUZZ_TARGET_INIT(script_sigcache, initialize_script_sigcache)
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{
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FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
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const std::optional<CMutableTransaction> mutable_transaction = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider);
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const CTransaction tx{mutable_transaction ? *mutable_transaction : CMutableTransaction{}};
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const unsigned int n_in = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
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const CAmount amount = ConsumeMoney(fuzzed_data_provider);
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const bool store = fuzzed_data_provider.ConsumeBool();
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PrecomputedTransactionData tx_data;
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CachingTransactionSignatureChecker caching_transaction_signature_checker{mutable_transaction ? &tx : nullptr, n_in, amount, store, tx_data};
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if (fuzzed_data_provider.ConsumeBool()) {
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const auto random_bytes = fuzzed_data_provider.ConsumeBytes<unsigned char>(64);
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const XOnlyPubKey pub_key(ConsumeUInt256(fuzzed_data_provider));
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if (random_bytes.size() == 64) {
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(void)caching_transaction_signature_checker.VerifySchnorrSignature(random_bytes, pub_key, ConsumeUInt256(fuzzed_data_provider));
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}
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} else {
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const auto random_bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider);
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const auto pub_key = ConsumeDeserializable<CPubKey>(fuzzed_data_provider);
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if (pub_key) {
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if (!random_bytes.empty()) {
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(void)caching_transaction_signature_checker.VerifyECDSASignature(random_bytes, *pub_key, ConsumeUInt256(fuzzed_data_provider));
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}
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}
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}
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}
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