text: // Copyright (c) 2020 The Widecoin 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()};
  
      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);
      }
  }
  