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tests: Add fuzzing harness for CHKDF_HMAC_SHA256_L32

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This commit is contained in:
practicalswift 2020-06-17 09:49:09 +00:00
parent ec86ca1aaa
commit e9e8aac029
2 changed files with 32 additions and 0 deletions
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7
src/Makefile.test.include
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@ -36,6 +36,7 @@ FUZZ_TARGETS = \
test/fuzz/crypto_aes256 \
test/fuzz/crypto_aes256cbc \
test/fuzz/crypto_common \
test/fuzz/crypto_hkdf_hmac_sha256_l32 \
test/fuzz/crypto_poly1305 \
test/fuzz/cuckoocache \
test/fuzz/decode_tx \
@ -507,6 +508,12 @@ test_fuzz_crypto_common_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_crypto_common_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_crypto_common_SOURCES = test/fuzz/crypto_common.cpp
test_fuzz_crypto_hkdf_hmac_sha256_l32_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_crypto_hkdf_hmac_sha256_l32_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_crypto_hkdf_hmac_sha256_l32_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_crypto_hkdf_hmac_sha256_l32_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_crypto_hkdf_hmac_sha256_l32_SOURCES = test/fuzz/crypto_hkdf_hmac_sha256_l32.cpp
test_fuzz_crypto_poly1305_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_crypto_poly1305_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_crypto_poly1305_LDADD = $(FUZZ_SUITE_LD_COMMON)

25
src/test/fuzz/crypto_hkdf_hmac_sha256_l32.cpp Normal file
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@ -0,0 +1,25 @@
// 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/hkdf_sha256_32.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cstdint>
#include <string>
#include <vector>
void test_one_input(const std::vector<uint8_t>& buffer)
{
FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
const std::vector<uint8_t> initial_key_material = ConsumeRandomLengthByteVector(fuzzed_data_provider);
CHKDF_HMAC_SHA256_L32 hkdf_hmac_sha256_l32(initial_key_material.data(), initial_key_material.size(), fuzzed_data_provider.ConsumeRandomLengthString(1024));
while (fuzzed_data_provider.ConsumeBool()) {
std::vector<uint8_t> out(32);
hkdf_hmac_sha256_l32.Expand32(fuzzed_data_provider.ConsumeRandomLengthString(128), out.data());
}
}