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tests: Add fuzzing harness for AES256Encrypt/AES256Decrypt

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This commit is contained in:
practicalswift 2020-06-16 13:03:01 +00:00
parent c8fa03d176
commit 9352c32325
2 changed files with 37 additions and 0 deletions
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7
src/Makefile.test.include
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@ -33,6 +33,7 @@ FUZZ_TARGETS = \
test/fuzz/coins_deserialize \
test/fuzz/coins_view \
test/fuzz/crypto \
test/fuzz/crypto_aes256 \
test/fuzz/crypto_common \
test/fuzz/cuckoocache \
test/fuzz/decode_tx \
@ -486,6 +487,12 @@ 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_aes256_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES)
test_fuzz_crypto_aes256_CXXFLAGS = $(AM_CXXFLAGS) $(PIE_FLAGS)
test_fuzz_crypto_aes256_LDADD = $(FUZZ_SUITE_LD_COMMON)
test_fuzz_crypto_aes256_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
test_fuzz_crypto_aes256_SOURCES = test/fuzz/crypto_aes256.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)

30
src/test/fuzz/crypto_aes256.cpp Normal file
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@ -0,0 +1,30 @@
// 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/aes.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/fuzz.h>
#include <test/fuzz/util.h>
#include <cassert>
#include <cstdint>
#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> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES256_KEYSIZE);
AES256Encrypt encrypt{key.data()};
AES256Decrypt decrypt{key.data()};
while (fuzzed_data_provider.ConsumeBool()) {
const std::vector<uint8_t> plaintext = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES_BLOCKSIZE);
std::vector<uint8_t> ciphertext(AES_BLOCKSIZE);
encrypt.Encrypt(ciphertext.data(), plaintext.data());
std::vector<uint8_t> decrypted_plaintext(AES_BLOCKSIZE);
decrypt.Decrypt(decrypted_plaintext.data(), ciphertext.data());
assert(decrypted_plaintext == plaintext);
}
}