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

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practicalswift
2020-06-15 17:20:54 +00:00
parent 1c86ed4148
commit 67bb7be864
2 changed files with 131 additions and 0 deletions
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src/test/fuzz/crypto.cpp Normal file
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// 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;
}
}
}
}