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| author | practicalswift <practicalswift@users.noreply.github.com> | 2020-05-16 18:20:15 +0000 |
|---|---|---|
| committer | practicalswift <practicalswift@users.noreply.github.com> | 2020-05-30 10:37:01 +0000 |
| commit | c91d2f06150cda258a17e78d9b7065b594d34a85 (patch) | |
| tree | 89402c610afa80791b71a89d644d406715a0ab69 | |
| parent | d3d8adb79fbe34b15cf29334607f9b76d303aa1a (diff) | |
tests: Add fuzzing harness for functions in script/sigcache.h
| -rw-r--r-- | src/Makefile.test.include | 7 | ||||
| -rw-r--r-- | src/test/fuzz/script_sigcache.cpp | 45 |
2 files changed, 52 insertions, 0 deletions
diff --git a/src/Makefile.test.include b/src/Makefile.test.include index 9acae81a83..7f2c6b6c91 100644 --- a/src/Makefile.test.include +++ b/src/Makefile.test.include @@ -116,6 +116,7 @@ FUZZ_TARGETS = \ test/fuzz/script_flags \ test/fuzz/script_interpreter \ test/fuzz/script_ops \ + test/fuzz/script_sigcache \ test/fuzz/scriptnum_ops \ test/fuzz/service_deserialize \ test/fuzz/signature_checker \ @@ -980,6 +981,12 @@ test_fuzz_script_ops_LDADD = $(FUZZ_SUITE_LD_COMMON) test_fuzz_script_ops_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) test_fuzz_script_ops_SOURCES = test/fuzz/script_ops.cpp +test_fuzz_script_sigcache_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) +test_fuzz_script_sigcache_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) +test_fuzz_script_sigcache_LDADD = $(FUZZ_SUITE_LD_COMMON) +test_fuzz_script_sigcache_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS) +test_fuzz_script_sigcache_SOURCES = test/fuzz/script_sigcache.cpp + test_fuzz_scriptnum_ops_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) test_fuzz_scriptnum_ops_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS) test_fuzz_scriptnum_ops_LDADD = $(FUZZ_SUITE_LD_COMMON) diff --git a/src/test/fuzz/script_sigcache.cpp b/src/test/fuzz/script_sigcache.cpp new file mode 100644 index 0000000000..434a47b702 --- /dev/null +++ b/src/test/fuzz/script_sigcache.cpp @@ -0,0 +1,45 @@ +// 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 <chainparamsbase.h> +#include <key.h> +#include <pubkey.h> +#include <script/sigcache.h> +#include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> +#include <test/fuzz/util.h> + +#include <cstdint> +#include <optional> +#include <string> +#include <vector> + +void initialize() +{ + static const ECCVerifyHandle ecc_verify_handle; + ECC_Start(); + SelectParams(CBaseChainParams::REGTEST); + InitSignatureCache(); +} + +void test_one_input(const std::vector<uint8_t>& buffer) +{ + FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size()); + + const std::optional<CMutableTransaction> mutable_transaction = ConsumeDeserializable<CMutableTransaction>(fuzzed_data_provider); + const CTransaction tx = mutable_transaction ? CTransaction{*mutable_transaction} : CTransaction{}; + const unsigned int n_in = fuzzed_data_provider.ConsumeIntegral<unsigned int>(); + const CAmount amount = ConsumeMoney(fuzzed_data_provider); + const bool store = fuzzed_data_provider.ConsumeBool(); + PrecomputedTransactionData tx_data; + CachingTransactionSignatureChecker caching_transaction_signature_checker{mutable_transaction ? &tx : nullptr, n_in, amount, store, tx_data}; + const std::optional<CPubKey> pub_key = ConsumeDeserializable<CPubKey>(fuzzed_data_provider); + if (pub_key) { + const std::vector<uint8_t> random_bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider); + if (!random_bytes.empty()) { + (void)caching_transaction_signature_checker.VerifySignature(random_bytes, *pub_key, ConsumeUInt256(fuzzed_data_provider)); + } + } +} |