// Copyright (c) 2020-2021 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>

FUZZ_TARGET(crypto_aes256)

{

    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()};

    LIMITED_WHILE(fuzzed_data_provider.ConsumeBool(), 10000) {

        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);

    }

}