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35 lines
1.6 KiB
C++
35 lines
1.6 KiB
C++
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// Copyright (c) 2020 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <crypto/aes.h>
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#include <test/fuzz/FuzzedDataProvider.h>
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#include <test/fuzz/fuzz.h>
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#include <test/fuzz/util.h>
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#include <cassert>
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#include <cstdint>
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#include <vector>
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void test_one_input(const std::vector<uint8_t>& buffer)
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{
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FuzzedDataProvider fuzzed_data_provider{buffer.data(), buffer.size()};
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const std::vector<uint8_t> key = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES256_KEYSIZE);
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const std::vector<uint8_t> iv = ConsumeFixedLengthByteVector(fuzzed_data_provider, AES_BLOCKSIZE);
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const bool pad = fuzzed_data_provider.ConsumeBool();
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AES256CBCEncrypt encrypt{key.data(), iv.data(), pad};
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AES256CBCDecrypt decrypt{key.data(), iv.data(), pad};
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while (fuzzed_data_provider.ConsumeBool()) {
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const std::vector<uint8_t> plaintext = ConsumeRandomLengthByteVector(fuzzed_data_provider);
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std::vector<uint8_t> ciphertext(plaintext.size() + AES_BLOCKSIZE);
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const int encrypt_ret = encrypt.Encrypt(plaintext.data(), plaintext.size(), ciphertext.data());
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ciphertext.resize(encrypt_ret);
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std::vector<uint8_t> decrypted_plaintext(ciphertext.size());
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const int decrypt_ret = decrypt.Decrypt(ciphertext.data(), ciphertext.size(), decrypted_plaintext.data());
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decrypted_plaintext.resize(decrypt_ret);
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assert(decrypted_plaintext == plaintext || (!pad && plaintext.size() % AES_BLOCKSIZE != 0 && encrypt_ret == 0 && decrypt_ret == 0));
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}
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}
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