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Merge #19286: tests: Add fuzzing harness for CHash{160,256}, C{HMAC_,}SHA{1,256,512}, CRIPEMD160, CSipHasher, etc.

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67bb7be864 tests: Add fuzzing harness for CHash{160,256}, C{HMAC_,}SHA{1,256,512}, CRIPEMD160, CSipHasher, etc. (practicalswift)

Pull request description:

  Add fuzzing harness for `CHash{160,256}`, `C{HMAC_,}SHA{1,256,512}`, `CRIPEMD160`, `CSipHasher`, etc.

  See [`doc/fuzzing.md`](https://github.com/bitcoin/bitcoin/blob/master/doc/fuzzing.md) for information on how to fuzz Bitcoin Core. Don't forget to contribute any coverage increasing inputs you find to the [Bitcoin Core fuzzing corpus repo](https://github.com/bitcoin-core/qa-assets).

  Happy fuzzing :)

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This commit is contained in:
MarcoFalke 2020-06-25 09:35:48 -04:00
commit 90981b7d68
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2 changed files with 131 additions and 0 deletions
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7
src/Makefile.test.include
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@ -32,6 +32,7 @@ FUZZ_TARGETS = \
test/fuzz/checkqueue \
test/fuzz/coins_deserialize \
test/fuzz/coins_view \
test/fuzz/crypto \
test/fuzz/crypto_common \
test/fuzz/cuckoocache \
test/fuzz/decode_tx \
@ -479,6 +480,12 @@ test_fuzz_coins_view_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_coins_view_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_coins_view_SOURCES = test/fuzz/coins_view.cpp
test_fuzz_crypto_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_crypto_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_crypto_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_crypto_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_crypto_SOURCES = test/fuzz/crypto.cpp
test_fuzz_crypto_common_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_crypto_common_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_crypto_common_LDADD = $(FUZZ_SUITE_LD_COMMON)

124
src/test/fuzz/crypto.cpp Normal file
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@ -0,0 +1,124 @@
// 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/hmac_sha256.h>
#include <crypto/hmac_sha512.h>
#include <crypto/ripemd160.h>
#include <crypto/sha1.h>
#include <crypto/sha256.h>
#include <crypto/sha512.h>
#include <hash.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
std::vector<uint8_t> data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
if (data.empty()) {
data.resize(fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 4096), fuzzed_data_provider.ConsumeIntegral<uint8_t>());
}
CHash160 hash160;
CHash256 hash256;
CHMAC_SHA256 hmac_sha256{data.data(), data.size()};
CHMAC_SHA512 hmac_sha512{data.data(), data.size()};
CRIPEMD160 ripemd160;
CSHA1 sha1;
CSHA256 sha256;
CSHA512 sha512;
CSipHasher sip_hasher{fuzzed_data_provider.ConsumeIntegral<uint64_t>(), fuzzed_data_provider.ConsumeIntegral<uint64_t>()};
while (fuzzed_data_provider.ConsumeBool()) {
switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 2)) {
case 0: {
if (fuzzed_data_provider.ConsumeBool()) {
data = ConsumeRandomLengthByteVector(fuzzed_data_provider);
if (data.empty()) {
data.resize(fuzzed_data_provider.ConsumeIntegralInRange<size_t>(1, 4096), fuzzed_data_provider.ConsumeIntegral<uint8_t>());
}
}
(void)hash160.Write(data.data(), data.size());
(void)hash256.Write(data.data(), data.size());
(void)hmac_sha256.Write(data.data(), data.size());
(void)hmac_sha512.Write(data.data(), data.size());
(void)ripemd160.Write(data.data(), data.size());
(void)sha1.Write(data.data(), data.size());
(void)sha256.Write(data.data(), data.size());
(void)sha512.Write(data.data(), data.size());
(void)sip_hasher.Write(data.data(), data.size());
(void)Hash(data.begin(), data.end());
(void)Hash160(data);
(void)Hash160(data.begin(), data.end());
(void)sha512.Size();
break;
}
case 1: {
(void)hash160.Reset();
(void)hash256.Reset();
(void)ripemd160.Reset();
(void)sha1.Reset();
(void)sha256.Reset();
(void)sha512.Reset();
break;
}
case 2: {
switch (fuzzed_data_provider.ConsumeIntegralInRange<int>(0, 8)) {
case 0: {
data.resize(CHash160::OUTPUT_SIZE);
hash160.Finalize(data.data());
break;
}
case 1: {
data.resize(CHash256::OUTPUT_SIZE);
hash256.Finalize(data.data());
break;
}
case 2: {
data.resize(CHMAC_SHA256::OUTPUT_SIZE);
hmac_sha256.Finalize(data.data());
break;
}
case 3: {
data.resize(CHMAC_SHA512::OUTPUT_SIZE);
hmac_sha512.Finalize(data.data());
break;
}
case 4: {
data.resize(CRIPEMD160::OUTPUT_SIZE);
ripemd160.Finalize(data.data());
break;
}
case 5: {
data.resize(CSHA1::OUTPUT_SIZE);
sha1.Finalize(data.data());
break;
}
case 6: {
data.resize(CSHA256::OUTPUT_SIZE);
sha256.Finalize(data.data());
break;
}
case 7: {
data.resize(CSHA512::OUTPUT_SIZE);
sha512.Finalize(data.data());
break;
}
case 8: {
data.resize(1);
data[0] = sip_hasher.Finalize() % 256;
break;
}
}
break;
}
}
}
}