diff options
Diffstat (limited to 'src/test/fuzz/muhash.cpp')
-rw-r--r-- | src/test/fuzz/muhash.cpp | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/test/fuzz/muhash.cpp b/src/test/fuzz/muhash.cpp new file mode 100644 index 0000000000..8f843ca773 --- /dev/null +++ b/src/test/fuzz/muhash.cpp @@ -0,0 +1,53 @@ +// 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 <crypto/muhash.h> +#include <test/fuzz/FuzzedDataProvider.h> +#include <test/fuzz/fuzz.h> +#include <test/fuzz/util.h> + +#include <vector> + +FUZZ_TARGET(muhash) +{ + FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()}; + std::vector<uint8_t> data = ConsumeRandomLengthByteVector(fuzzed_data_provider); + std::vector<uint8_t> data2 = ConsumeRandomLengthByteVector(fuzzed_data_provider); + if (data.empty()) { + data.resize(fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 4096), fuzzed_data_provider.ConsumeIntegral<uint8_t>()); + } + if (data2.empty()) { + data2.resize(fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 4096), fuzzed_data_provider.ConsumeIntegral<uint8_t>()); + } + + data = ConsumeRandomLengthByteVector(fuzzed_data_provider); + data2 = ConsumeRandomLengthByteVector(fuzzed_data_provider); + + MuHash3072 muhash; + + // Test that MuHash result is consistent independent of order of operations + muhash.Insert(data); + muhash.Insert(data2); + + uint256 out; + muhash.Finalize(out); + + muhash = MuHash3072(); + muhash.Insert(data2); + muhash.Insert(data); + + uint256 out2; + muhash.Finalize(out2); + + assert(out == out2); + + // Test that removing all added elements brings the object back to it's initial state + muhash /= muhash; + muhash.Finalize(out); + + MuHash3072 muhash2; + muhash2.Finalize(out2); + + assert(out == out2); +} |