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606a7ab862
Move its ownership to the ChainstateManager class. Next to simplifying usage of the kernel library by no longer requiring manual setup of the cache prior to using validation code, it also slims down the amount of memory allocated by BasicTestingSetup. Use this opportunity to make SignatureCache RAII styled Co-authored-by: Ryan Ofsky <ryan@ofsky.org>
59 lines
2.4 KiB
C++
59 lines
2.4 KiB
C++
// Copyright (c) 2020-2022 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 <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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SignatureCache* g_signature_cache;
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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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static SignatureCache signature_cache{DEFAULT_SIGNATURE_CACHE_BYTES};
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g_setup = testing_setup.get();
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g_signature_cache = &signature_cache;
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}
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FUZZ_TARGET(script_sigcache, .init = 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, TX_WITH_WITNESS);
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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, *g_signature_cache, 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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